Lamborghini IDOLA S 3.2 Waal Hung Indoor Units User Manual

IDOLA S 3.2 Waal Hung Indoor Units

Product Information

Product Name: IDOLA S 3.2

Product Code: 3541Z090

Refrigerant: R32

Product Type: Waal-Hung Indoor Units for
Reversible Split Heat Pumps with DC Inverter Compressor

Installation, Maintenance, and User Manual:
Available in English and other languages

Allowed Uses: This series of heat pumps is
designed to produce cold or hot water for use in hydronic systems
for conditioning/heating purposes and production of domestic hot
water in an indirect way through an external storage boiler
equipped with a heat exchanger. Any use differing from this proper
use or beyond the operating limits indicated in this manual is
forbidden unless previously agreed with the manufacturer.

Note: This appliance is intended to be used by
expert or trained users in shops, in light industry and on farms,
or for commercial use by lay persons.

CE Marking: The CE marking certifies that the
products meet the essential requirements of the relevant directives
in force. The declaration of conformity may be requested from the
manufacturer.

Manufacturer’s Responsibility: The manufacturer
declines all responsibility for any inaccuracies in this manual due
to printing or typing errors. The manufacturer reserves the right
to modify the products contents in this catalogue without previous
notice.

Product Usage Instructions

1. Safety Precautions:

• Follow the safety precautions mentioned in the user manual to
  ensure safe usage of the product.

2. General Features:

• The system is presented and the components supplied with the
  indoor unit are described.

• The control system is explained in detail.

8.3 Meaning of Display Icons:

• Refer to page 40 of the user manual to understand the meaning
  of display icons.

8.5 Switching ON and OFF DHW and Plant:

• Follow the instructions on page 41 of the user manual to switch
  ON and OFF DHW (Domestic Hot Water) and the plant.

8.6 HEAT, COOL and DHW Setpoint Settings:

• Page 42 of the user manual provides instructions on how to set
  the HEAT, COOL, and DHW (Domestic Hot Water) setpoints.

8.7 User Menu:

• Page 43 of the user manual explains the user menu and its
  various features.

8.7.1 Heat/Cool Operating Mode Selection (Operation
Mode):

• Refer to page 47 of the user manual to understand how to select
  the heat/cool operating mode.

8.7.2 Daily Schedule/Climatic Curves/Eco Mode (Preset
Temp):

• Page 47 of the user manual provides instructions on setting the
  daily schedule, climatic curves, and Eco mode.

Cool Mode Weekly Schedule (Preset Temp.
Cool):

• Refer to page 47 of the user manual for instructions on setting
  the cool mode weekly schedule.

E

Y L

AS

REF

3541Z090

RIGERANT G

Cod. 3541Z090 – Rev. 06 – 02/2023

IDOLA S 3.2
WAAL-HUNG INDOOR UNITS FOR REVERSIBLE SPLIT HEAT PUMPS WITH DC INVERTER COMPRESSOR JEDNOSTKA WEWNTRZNA NACIENNA DO REWERSYJNYCH POMP CIEPLA TYPU
SPLIT ZE SPRARK W TECHNOLOGII DC INVERTER
O-FRIEND C
R32
EN INSTALLATION, MAINTENANCE AND USER MANUAL PL INSTRUKCJA INSTALACJI, UYTKOWANIA I KONSERWACJI

IDOLA S 3.2

· Read the warnings in this instruction booklet carefully since they provide important information on safe installation, use and maintenance.
· This instruction booklet is an integral and essential part of the product and must be kept with care by the user for future reference.
· If the unit is sold or transferred to another owner or if it is to be moved, always make sure the booklet stays with the appliance so that it can be consulted by the new owner and/or installer.
· Installation and maintenance must be carried out by professionally qualified personnel, according to current regulations and the manufacturer’s instructions.
· Incorrect installation or inadequate maintenance can result in damage or injury. The manufacturer declines any liability for damage caused by errors in installation and use or by failure to follow the instructions provided.
· Before carrying out any cleaning or maintenance operation, disconnect the unit from the power supply using the system switch and/or the special cut-off devices.
· In case of a fault and/or poor operation, deactivate the unit and do not try to repair it or directly intervene. Contact professionally qualified personnel. Any repair/replacement of the products must only be carried out by qualified personnel using genuine parts. Failure to comply with the above can compromise the safety of the unit.

· Periodic maintenance performed by qualified personnel is essential in order to ensure proper operation of the unit.
· This unit must only be used for its intended purpose. · Any other use is deemed improper and therefore hazardous. · After unpacking, check the good condition of the contents. The pack-
ing materials are potentially hazardous and must not be left within the reach of children. · The unit can be used by children aged at least 8 years and by persons with reduced physical, sensory or mental capabilities, or lacking experience or the necessary knowledge, only if under supervision or they have received instructions on its safe use and the related risks. Children must not play with the unit. · Cleaning and maintenance intended to be done by the user can be carried out by children aged at least 8 years only if under supervision. · In case of doubt, do not use the unit. Contact the supplier. · The unit and its accessories must be appropriately disposed of in compliance with current regulations. · The images given in this manual are a simplified representation of the product. In this representation there may be slight and insignificant differences with respect to the product supplied.

This symbol which appears on the product or the packaging or in the documentation, indicates that the product must not be collected, recycled or disposed of with household waste at the end of its life cycle. Improper disposal of electrical and electronic equipment can cause the leakage of hazardous substances contained in the product. In order to avoid any potential harm to the environment or health, the user is requested to separate this equipment from other types of waste and deliver it to the local city waste collection service or to request collection by the distributor according to the conditions and methods included in national legislation in the implementation of Directive 2012/19/EU. Separate waste collection and the recycling of discarded equipment helps to preserve natural resources and guarantee that the waste treated with respect for the environment and ensuring the protection of health. For further information on the methods of collecting waste from electrical and electronic equipment, please contact your local councils or the competent public authorities for the issue of authorisations.

Allowed uses This series of heat pumps is designed to produce cold or hot water for use in hydronic systems for conditioning/heating purposes and production of domestic hot water in an indirect way through an external storage boiler equipped with a heat exchanger. Any use differing from this proper use or beyond the operating limits indicated in this manual is forbidden unless previously agreed with the manufacturer.
Note This appliance is intended to be used by expert or trained users in shops, in light industry and on farms, or for commercial use by lay persons.

The CE marking certifies that the products meet the essential requirements of the relevant directives in force. The declaration of conformity may be requested from the manufacturer.

The original documentation is written in English. All other languages are translations. The manufacturer declines all responsibility for any inaccuracies in this manual due to printing or typing errors. The manufacturer reserves the right to modify the products contents in this catalogue without previous notice.

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EN

Cod. 3541Z090 – Rev. 06 – 02/2023

IDOLA S 3.2

SUMMARY

1. SAFETY PRECAUTIONS ………………………………………………………………………………4

8.3 Meaning of display icons …………………………………………………………………………………. 40

1.1 Special requirements for R32 refrigerant …………………………………………………………….. 5

8.5 Switching ON and OFF DHW and plant …………………………………………………………….. 41

1.2 Information servicing ………………………………………………………………………………………. 12

8.6 HEAT, COOL and DHW setpoint settings…………………………………………………………… 42

2. GENERAL FEATURES ………………………………………………………………………………..16

8.7 User menu…………………………………………………………………………………………………….. 43

2.1 Presentation of the system………………………………………………………………………………. 16

8.7.1 Heat / Cool operating mode selection (Operation Mode) . . . . . . . . . . . . . . . . . 47

2.2 Components supplied with the indoor unit …………………………………………………………. 16

8.7.2 Daily schedule / climatic curves / Eco mode (Preset Temp) . . . . . . . . . . . . . . . 47

2.3 The control system …………………………………………………………………………………………. 17

Cool mode weekly schedule (Preset Temp. Cool). . . . . . . . . . . . . . . . . . . . . . . . . 47

3. TECHNICAL DATA AN PERFORMANCE ……………………………………………………..18 3.1 System technical data …………………………………………………………………………………….. 18 3.2 ERP data ………………………………………………………………………………………………………. 19 3.3 Operating limits heat pump ……………………………………………………………………………… 19 3.4 Available static pressure………………………………………………………………………………….. 20 3.4.1 Heat pump circulator indoor unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
4. DIMENSIONAL AND PHYSICAL DATA………………………………………………………..21 5. GENERAL VIEW AND INTERNAL UNIT HYDRAULIC DIAGRAM …………………22 6. SYSTEM EXEMPLARY SCHEMES ………………………………………………………………23 7. INSTALLATION ………………………………………………………………………………………….24
7.1 Inspections on arrival ……………………………………………………………………………………… 24 7.1.1 Packing and storing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 7.1.2 Selecting the installation site and minimum operating area for indoor unit . . . . 24
7.2 Minimum plant water content and requirements for DHW boiler (not supplied with the unit) …..25 7.4 Limits to the length and height difference of refrigerant pipes……………………………….. 26 7.5 Refrigerant connections ………………………………………………………………………………….. 27
7.5.1 Airtight test and leakage detection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 7.5.2 Air purge with vacuum pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 7.5.3 Heat insulation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 7.5.4 Refrigerant amount to be added . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 7.6 Hydraulic connections …………………………………………………………………………………….. 29 7.6.1 Antifreeze plant, antifreeze fluids, additives and inhibitors . . . . . . . . . . . . . . . . 29 7.6.2 Water filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 7.6.3 Tips for a successful installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 7.6.4 Filling with water . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 7.6.5 Water circuit anti-freeze protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 7.6.6 Water piping insulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 7.7 Electrical connections……………………………………………………………………………………… 31 7.7.1 Electrical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 7.7.2 How to access to the electric box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 7.7.3 User terminal block connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 7.7.4 Connection of system add-ons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 7.7.5 Hydronic board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
P_o – For outdoor circulation pump or water pump zone 1 . . . . . . . . . . . . . . . . . . 36 P_c – Water pump of zone 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 P_d – DHW recirculation pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 P_s – Water pump of the solar circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 SV2 – 3-way diverter valve for heat/cool . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 SV3 – 3-way mixing valve for zone 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 TBH – Electrical heater for DHW boiler . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 H-L1-C – For room thermostat (high voltage) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 HT- COM-CL – Room thermostat (Low voltage) . . . . . . . . . . . . . . . . . . . . . . . . . . . 38 AHS1, AHS2 – For additional heat source control (GAS BOILER) . . . . . . . . . . . . 39 EVU-SG Digital inputs for photovoltaic input and smart grid from mains electricity39 Additional temperature probes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39 8. USER INTERFACE………………………………………………………………………………………40

Heat mode weekly schedule (Preset Temp. Heat) . . . . . . . . . . . . . . . . . . . . . . . . 47 Climatic curves (Climatic Temp) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47 Eco Mode (Eco Mode) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47 Antilegionella (Disinfect) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48 Load. Fast DHW (Fast Dhw) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48 DHW electric heater (Tank Heater) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48 DHW pump (Dhw Pump Circ) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48 8.7.3 Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48 Silent Mode (Silent Mode) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48 Holiday mode (Holiday) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49 Plant Backup Heater (Backup Heater) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49 8.7.4 Service information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49 Parameters (Parameters) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49 Display. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49 Error code (Error code) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49 8.7.5 Operation Parameter (Operation Parameter) . . . . . . . . . . . . . . . . . . . . . . . . . . 49 9. START-UP AND CONFIGURATION ……………………………………………………………..50 9.1 Dip switch setting on indoor unit hydronic board…………………………………………………. 50 9.1.1 Access to Service menu (For Serviceman) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 9.2 Service parameters table ………………………………………………………………………………… 51 9.3 Climatic curves ………………………………………………………………………………………………. 54 9.3.1 Temperature curves for heating mode and ECO heating mode . . . . . . . . . . . . 54 Climatic curve 9 in heating mode settable by the user . . . . . . . . . . . . . . . . . . . . . 54 9.3.2 Temperature curves for cooling mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55 Climatic curve 9 in cooling mode settable by the user . . . . . . . . . . . . . . . . . . . . . 55 10. TROUBLESHOOTING ……………………………………………………………………………….56 10.1 General guidelines ……………………………………………………………………………………….. 56 10.2 General symptoms ……………………………………………………………………………………….. 56 10.3 Error codes………………………………………………………………………………………………….. 58 11. COMMISSIONING ……………………………………………………………………………………..61 11.1 Heat pump commissioning …………………………………………………………………………….. 61 11.1.1 Preliminary heat pump checks. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61 Refrigerating part. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61 11.2 Setting to be done during the initial check of the product……………………………………. 61 11.3 Final check before turning on the unit ……………………………………………………………… 61 11.4 Turn on the unit…………………………………………………………………………………………….. 61 12. MAINTENANCE…………………………………………………………………………………………61 12.1 General notes………………………………………………………………………………………………. 61 Electrical cabinet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62 Residual Risks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62 12.2 Access to internal components……………………………………………………………………….. 62 13. ELECTRICAL WIRING DIAGRAM INDOOR UNIT ………………………………………63 13.1.1 Electrical wiring diagram for indoor unit mod. 10-16 (1ph) . . . . . . . . . . . . . . . 63 13.1.2 Electrical wiring diagram for indoor unit mod. 16T (3ph) . . . . . . . . . . . . . . . . . 64 14. REFRIGERANT DIAGRAM ………………………………………………………………………..65

8.1 Key function description ………………………………………………………………………………….. 40

Cod. 3541Z090 – Rev. 06 – 02/2023

EN

3

1. SAFETY PRECAUTIONS
The precautions listed here are divided into the following types. They are quite important, so be sure to follow them carefully. Meanings of DANGER, WARNING, CAUTION and NOTE symbols.

IDOLA S 3.2

HAZARD Indicates an imminently hazardous situation which if not avoided, will result in death or serious injury.
WARNING Indicates a potentially hazardous situation which if not avoided, could result in death or serious injury.
CAUTION Indicates a potentially hazardous situation which if not avoided, may result in minor or moderate injury. It is also used to alert against unsafe practices.
NOTE
Indicates situations that could only result in accidental equipment or property damage.

Read these instructions carefully before installation. Keep this manual in a handy for future reference. Improper installation of equipment or accessories may result in electric shock, short-circuit, leakage, fire or other damage to the equipment. Be sure to only use accessories made by the supplier, which are specifically designed for the equipment and make sure to get installation done by a professional. All the activities described in this manual must be carried out by a licensed technician. Be sure to wear adequate personal protection equipment such as gloves and safety glasses while installation the unit or carrying out maintenance activities. Contact your dealer for any further assistance.

Table. 1 – Information symbols

Symbol

Description

This symbol indicates that this appliance uses a flammable refrigerant. If the refrigerant leaks and is exposed to a strong external ignition, there is a risk of fire.

This symbol indicates that the instruction manual must be read carefully

This symbol indicates that the support staff should refer to the installation manual when handling this appliance.

This symbol shows that information is available such as the operating manual or the installation manual.

WARNING
Servicing shall only be performed as recommended by the equipment manufacturer. Maintenance and repair requiring the assistance of other skilled personnel shall be carried out under the supervision of the person competent in the use of flammable refrigerants.

4

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Cod. 3541Z090 – Rev. 06 – 02/2023

IDOLA S 3.2
1.1 Special requirements for R32 refrigerant

WARNING · Avoid refrigerant leakage with open flames. · Keep in mind that the R32 refrigerant is ODOURLESS.

WARNING
The appliance shall be stored so as to prevent mechanical damage and in a well-ventilated room without continuously operating ignition sources (for example: open flames, an operating gas appliance) and have a room size as specified below.

NOTE
· Do NOT re-use joints which have been used already. · Joints made in installation between parts of refrigerant system shall be accessible for maintenance purposes.
WARNING Make sure installation, servicing, maintenance and repair comply with instructions and with applicable legislation (for example national gas regulation) and are executed only by authorised persons.
NOTE
Symbol mc denotes the refrigerant charge of a single refrigerating system. Where multiple refrigerating systems are servicing the same space, the refrigerating system with the largest refrigerant charge shall be used.

· Pipework should be protected from physical damage. · Installation of pipework shall be kept to a minimum.
If the total refrigerant charge in the system (mc) is 1.842 kg, there are no additional minimum floor area requirements.
If the total refrigerant charge in the system (mc) is >1.842 kg, you need to comply with additional minimum floor area requirements as described in the following flow chart.

A a

VAmin B

11..58mm

VAmin

fig. 1 – indoor unit installation

Legend a A B VAmin

indoor unit room where the indoor unit is installed. room adjacent to room A. 2 openings (1 at the top and 1 at the bottom) between Room A and Room B.

NOTE
Spaces connected by only drop ceilings, duct work, or similar connections shall not be considered a single space. For units mounted higher than 1,6 m, spaces divided by partition walls which are no higher than 1,6 m shall be considered a single space. For fixed appliances, rooms on the same floor and connected by an open passageway between the spaces can be considered a single room when determining compliance to Amin, if the passageway complies with all of the following. · It is a permanent opening. · It extends to the floor. · It is intended for people to walk through.

Cod. 3541Z090 – Rev. 06 – 02/2023

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5

IDOLA S 3.2

Start
Input from installer: – Total refrigerant charge (mc)(kg) – Area of room A (AroomA) (m2)

Input from installer: – Area of adjacent room B (AroomB) (m2)
Use table 3 to calculate the total minimum floor area (Amintotal)(m2)required for the total refrigerant charge (mc)

Use table 2 to calculate the maximum refrigerant charge (mmax)(kg) allowed for room A.
no
mmaxmc?
yes
The unit can be installed in room A, and without further room size or ventilation requirements.

Amin totalAroomA+AroomB?

no

yes
Determine the refrigerant amount that exceeds mmax(dm)(kg).(dm=mc-mmax)

Use table 4 and dm to calculate the minimum opening area for natural ventilation between room A and room B(VAmin)(cm2)

Contact your dealer

Unit can be installed at room A if: – 2 ventilation openings (permanently open) are provided between room A and B, 1 at the top and 1 at the bottom. – Bottom opening:The bottom opening must meet the minimum area requirements(VAmin).It must be as close as possible to the floor.If the ventilation opening starts from the floor, the height must be 20mm. The bottom of the opening must be situated100mm from the floor. At least 50% of the required opening area must be situated <200 mm from the floor. The entire area of the opening must be situated <300 mm from the floor. – Top opening:The area of the top opening must be larger than or equal to the bottom opening. The bottom of the top opening must be situated at least 1.5 m above the top of the bottom opening. – Ventilation openings to the outside are NOT considered suitable ventilation openings (the user can block them when it is cold).

6

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Cod. 3541Z090 – Rev. 06 – 02/2023

IDOLA S 3.2
The flow chart uses the following tables: Table. 2 – Maximum refrigerant charge allowed in a room based on the surface of the installation area.
A [m2] 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 5.5 6 6.5 7 7.5 8 8.5 9 9.5 10 mmax [kg] 0.21 0.41 0.62 0.83 1.04 1.24 1.45 1.66 1.87 2.07 2.28 2.49 2.62 2.72 2.82 2.91 3.00 3.09 3.17 3.25

NOTE
For wall-mounted models, the “Installation height (H)” is deemed to be 1800 mm in order to comply with the standard IEC 60335-2-40: 2018 clause GG2. For intermediate Aroom values (i.e. when Aroom is between two values from the table), consider the value that corresponds to the lower Aroom value from the Ttaabblele..If3A-roMomin=i3m,6umm2,flcooonrsaidreear the value that corresponds to “Aroom=3,5 m2”.
mc [kg] 1.9 2 2.1 2.2 2.3 2.4 2.5 Amintotal [m2] 4.58 4.83 5.07 5.31 5.55 5.79 6.03

NOTE

For wall-mounted models, the “Installation height (H)” is deemed to be 1800 mm in order to comply with the standard IEC 60335-2-40: 2018 clause GG2.

For intermediate mc values (i.e. when mc is between two values from the table), consider the value that corresponds to the higher mc value from the table. If mc=1,97kg, consider the value that corresponds to “mc=2kg”. Systems with total refrigerant charge lower than 1.84kg are not subjected to any room requirements. Table. 4 – Minimum venting opening area for natural ventilation

Subtable mc= 1.9 kg

Subtable mc= 2.0 kg

Subtable mc= 2.1 kg

Subtable mc= 2.2 kg

AroomA [m2] mmax [kg] dm=mc-mmax [kg] VAmin [cm2] AroomA [m2] mmax [kg] dm=mc- mmax [kg]

VAmin [cm2]

AroomA [m2] mmax [kg] dm=mc-mmax [kg]

VAmin [cm2]

AroomA [m2] mmax [kg] dm=mc-mmax [kg]

VAmin [cm2]

0.5 0.21

1.69

395

0.5 0.21

1.79

419 0.5 0.21

1.89

442 0.5 0.21

1.99

465

1 0.41

1.49

347

1 0.41

1.59

370

1 0.41

1.69

394

1

0.41

1.79

417

1.5 0.62

1.28

299

1.5 0.62

1.38

322 1.5 0.62

1.48

345 1.5 0.62

1.58

369

2 0.83

1.07

250

2 0.83

1.17

274

2 0.83

1.27

297

2

0.83

1.37

320

2.5 1.04

0.86

202

2.5 1.04

0.96

225 2.5 1.04

1.06

248 2.5 1.04

1.16

272

3 1.24

0.66

153

3 1.24

0.76

177

3 1.24

0.86

200

3

1.24

0.96

223

3.5 1.45

0.45

105

3.5 1.45

0.55

128 3.5 1.45

0.65

152 3.5 1.45

0.75

175

4 1.66

0.24

57

4 1.66

0.34

80

4 1.66

0.44

103

4

1.66

0.54

127

4.5 1.87

0.03

8

4.5 1.87

0.13

32

4.5 1.87

0.23

55

4.5 1.87

0.33

78

5 2.07

0.03

6

5

2.07

0.13

30

Subtable mc= 2.3 kg

Subtable mc= 2.4 kg

Subtable mc= 2.5 kg

AroomA [m2] mmax [kg] dm=mc-mmax [kg] VAmin [cm2] AroomA [m2] mmax [kg] dm=mc- mmax [kg]

VAmin [cm2]

AroomA [m2] mmax [kg] dm=mc-mmax [kg]

VAmin [cm2]

0.5 0.21

2.09

489

0.5 0.21

2.19

512 0.5 0.21

2.29

535

1 0.41

1.89

440

1 0.41

1.99

464

1 0.41

2.09

487

1.5 0.62

1.68

392

1.5 0.62

1.78

415 1.5 0.62

1.88

439

2 0.83

1.47

344

2 0.83

1.57

367

2 0.83

1.67

390

2.5 1.04

1.26

295

2.5 1.04

1.36

319 2.5 1.04

1.46

342

3 1.24

1.06

247

3 1.24

1.16

270

3 1.24

1.26

294

3.5 1.45

0.85

198

3.5 1.45

0.95

222 3.5 1.45

1.05

245

4 1.66

0.64

150

4 1.66

0.74

173

4 1.66

0.84

197

4.5 1.87

0.43

102

4.5 1.87

0.53

125 4.5 1.87

0.63

148

5 2.07

0.23

53

5 2.07

0.33

77

5 2.07

0.43

100

5.5 2.28

0.02

5

5.5 2.28

0.12

28

5.5 2.28

0.22

52

6 2.49

0.01

3

NOTE
For wall-mounted models, the “Installation height (H)” is deemed to be 1800 mm in order to comply with the standard IEC 60335-2-40: 2018 clause GG2.
Based on the value of mc (total refrigerant change of the system) use the subtable with the higher value, for instance if mc = 2.05 kg use subtable mc =2.1 kg
CAUTION Frequency of Refrigerant Leakage Checks For unit that contains fluorinated greenhouse gases in quantities of 5 tonnes of CO2 equivalent or more, but of less than 50 tonnes of CO2 equivalent, at least every 12 months, or where a leakage detection system is installed, at least every 24 months. For unit that contains fluorinated greenhouse gases in quantities of 50 tonnes of CO2 equivalent or more, but of less than 500 tonnes of CO2 equivalent at least every six months, or where a leakage detection system is installed, at least every 12 months. For unit that contains fluorinated greenhouse gases in quantities of 500 tonnes of CO2 equivalent or more, at least every three months, or where a leakage detection system is installed, at least every six months. Only certificated person is allowed to do installation, operation and maintenance.

Cod. 3541Z090 – Rev. 06 – 02/2023

EN

7

IDOLA S 3.2
HAZARD
· Before touching electric terminal parts, turn off power switch.
· When service panels are removed, live parts can be easily touched by accident.
· Never leave the unit unattended during installation or servicing when the service panel is removed.
· Do not touch water pipes during and immediately after operation as the pipes may be hot and could burn your hands. To avoid injury, give the piping time to return to normal temperature or be sure to wear protective gloves.
· Do not touch any switch with wet fingers. Touching a switch with wet fingers can cause electrical shock.
WARNING
· Tear apart and throw away plastic packaging bags so that children will not play with them. Children playing with plastic bags face danger of death by suffocation.
· Safely dispose of packing materials such as nails and other metal or wood parts that could cause injuries.
· Ask your dealer or qualified personnel to perform installation work in accordance with this manual. Do not install the unit yourself. Improper installation could result in water leakage, electric shocks or fire.
· Be sure to use only specified accessories and parts for installation work. Failure to use specified parts may result in water leakage, electric shocks, fire, or the unit falling from its mount.
· Install the unit on a wall that can withstand its weight. Insufficient physical strength may cause the equipment to fall and possible injury.
· Perform specified installation work with full consideration of strong wind, hurricanes, or earthquakes. Improper installation work may result in accidents due to equipment falling.
· Make certain that all electrical work is carried out by qualified personnel according to the local laws and regulations and this manual using a separate circuit. Insufficient capacity of the power supply circuit or improper electrical construction may lead to electric shocks or fire.
· Be sure to install a ground fault circuit interrupter according to local laws and regulations. Failure to install a ground fault circuit interrupter may cause electric shocks and fire.
· Make sure all wiring is secure. Use the specified wires and ensure that terminal connections or wires are protected from water and other adverse external forces. Incomplete connection or affixing may cause a fire.
· When wiring the power supply, form the wires so that the front panel can be securely fastened. If the front panel is not in place there could be overheating of the terminals, electric shocks or fire.
· After completing the installation work, check to make sure that there is no refrigerant leakage.
· Never directly touch any leaking refrigerant as it could cause severe frostbite. Do not touch the refrigerant pipes during and immediately after operation as the refrigerant pipes may be hot or cold, depending on the condition of the refrigerant flowing through the refrigerant piping, compressor and other refrigerant cycle parts. Burns or frostbite are possible if you touch the refrigerant pipes. To avoid injury, give the pipes time to return to normal temperature or, if you must touch them be sure to wear protective gloves.
· Do not touch the internal parts (pump, backup heater, etc.) during and immediately after operation. Touching the internal parts can cause burns. To avoid injury, give the internal parts time to return to normal temperature or, if you must touch them, be sure to wear protective gloves.

8

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IDOLA S 3.2
CAUTION
Ground the unit. Grounding resistance should be according to local laws and regulations. Do not connect the ground wire to gas or water pipes, lightning conductors or telephone ground wires. Incomplete grounding may cause electrical shocks. Gas pipes: Fire or an explosion might occur if the gas leaks. Water pipes: Hard vinyl tubes are not effective grounds. Lightning conductors or telephone ground wires: electrical threshold may rise abnormally if struck by a lightning bolt. Install the power wire at least 1 meter away from televisions or radios to prevent interference or noise. (Depending on the radio waves, a distance of 1 meter may not be sufficient to eliminate the noise.) Do not wash the unit. This may cause electric shocks or fire. The appliance must be installed in accordance with national wiring regulations. If the supply cord is damaged, it must be replaced by the manufacturer, its service agent or similarly qualified persons in order to avoid a hazard. Do not install the unit in the following places: · Where there is mist of mineral oil, oil spray or vapours. Plastic parts may deteriorate, and cause them to come
loose or water to leak. · Where corrosive gases are produced. Where corrosion of copper pipes or soldered parts may cause refrigerant
to leak. · Where there is machinery which emits electromagnetic waves. Electromagnetic waves can disturb the control
system and cause equipment malfunction. · Where flammable gases may leak, where carbon fibre or ignitable dust is suspended in the air or where volatile
flammables such as paint thinner or gasoline are handled. These types of gases might cause a fire. · Where voltage fluctuates a lot, such as in factories. · In vehicles or vessels. · Where acidic or alkaline vapours are present. This appliance can be used by children 8 years old and above and persons with reduced physical, sensory or mental capabilities or lack of experience and knowledge if they are supervised or given instruction on using the unit in a safe manner and understand the hazards involved. Children should not play with the unit. Cleaning and user maintenance should not be done by children without supervision. Young children should be supervised to ensure that they do not play with the appliance.
DISPOSAL: Do not dispose this product as unsorted municipal waste. Collection of such waste separately for special treatment is necessary. Do not dispose of electrical appliances as municipal waste, use separate collection facilities. Contact your local government for information regarding the collection systems available. If electrical appliances are disposed of in landfills or dumps, hazardous substance can leak into the groundwater and get into the food chain, damaging your health and well-being. The wiring must be performed by professional technicians in accordance with national wiring regulation and this circuit diagram. An all-pole disconnection device which has at least 3mm separation distance in all pole and a residual current device (RCD) with the rating not exceeding 30mA shall be incorporated in the fixed wiring according to the national rule. Confirm the safety of the installation area (walls, floors, etc.) without hidden dangers such as water, electricity, and gas. Before installation, check whether the user’s power supply meets the electrical installation requirements of unit (including reliable grounding, leakage, and wire diameter electrical load, etc.). If the electrical installation requirements of the product are not met, the installation of the product is prohibited until the product is rectified. When installing multiple air conditioners in a centralized manner, please confirm the load balance of the three-phase power supply, and multiple units are prevented from being assembled into the same phase of the three-phase power supply. The product must be securely fixed in place. Use reinforcements, if necessary.

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9

IDOLA S 3.2
NOTE
About Fluorinated Gasses · This air-conditioning unit contains fluorinated gasses. For specific information on the type of gas and the amount, please refer to the relevant label
on the unit itself. Compliance with national gas regulations shall be observed. · Installation, service, maintenance and repair of this unit must be performed by a certified technician. · Product uninstallation and recycling must be performed by a certified technician. · If the system has a leak- detection system installed, it must be checked for leaks at least every 12 months. When the unit is checked for leaks, proper
record-keeping of all checks is strongly recommended.
WARNING
Be sure to adopt adequate measures to prevent the unit from being used as a shelter by small animals. Small animals making contact with electrical parts can cause malfunction, smoke or fire. Please instruct the customer to keep the area around the unit clean. Select an installation site where the following condition are satisfied and one that meets with your customer’s approval: · Places that are well-ventilated. · Places where the unit does not disturb next-door neighbours. · Safe places which can bear the unit’s weight and vibration and where the unit can be installed at an even level. · Places where there is no possibility of flammable gas or product leak. · The equipment is not intended for use in a potentially explosive atmosphere. · Places where servicing space can be well ensured. · Places where the units’ piping and wiring lengths come within the allowable ranges. · Places where water leaking from the unit cannot cause damage to the location. · Places where rain can be avoided as much as possible. · Do not install the unit in places often used as a work space. In case of construction work (e.g. grinding etc.)
where a lot of dust is created, the unit must be covered. · Do not place any object or equipment on top of the unit (top plate). · Do not climb, sit or stand on top of the unit. · Be sure that sufficient precautions are taken in case of refrigerant leakage according to relevant local laws and
regulations. · If the external unit needs to be installed near the coast or where corrosive gases are present, its durability may
decrease. In the event of installations near the coast, we recommend avoiding the installation of the unit directly exposed to sea winds.

WARNING

· Ask your dealer for installation of the heat pump. Incomplete installation performed by yourself may result in a water leakage, electric shock, and fire. · Ask your dealer for improvement, repair, and maintenance. Incomplete improvement, repair, and maintenance may result in a water leakage, electric shock, and fire. · In order to avoid electric shock, fire or injury, or if you detect any abnormality such as smell of fire, turn off the
power supply and call your dealer for instructions. · Never let the indoor unit or the controller get wet. It may cause an electric shock or a fire. · Never press the button of the controller with a hard, pointed object. The controller may be damaged. · Never replace a fuse with that of wrong rated current or other wires when a fuse blows out. It may break the unit or start a fire.

10

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Cod. 3541Z090 – Rev. 06 – 02/2023

IDOLA S 3.2
· Never use a flammable spray such as hair spray, lacquer or paint near the unit. It may cause a fire. · Do not dispose this product as unsorted municipal waste. Collection of such waste separately for special treat-
ment is necessary. Do not dispose of electrical appliances as unsorted municipal waste, use separate collection facilities. Contact your local government for information regarding the connection systems available. · If electrical appliances are disposed of in landfills, hazardous substance can leak into the groundwater and get
into the food chain, damaging your health and well-being. · To avoid refrigerant leakages, contact your technical support service. When the system is installed and operating in a small room, you must ensure that it is well- ventilated to limit the concentration of the refrigerant especially in the event of leaks which could lead to a decrease in oxygen and consequently, the risk of suffocation. · The refrigerant in the heat pump is safe and normally does not leak. If the refrigerant leaks in the room, contact with a fire of a burner, a heater or a cooker may result in a harmful gas. · Turn off any combustible heating devices, ventilate the room, and contact the dealer where you purchased the
unit. Do not use the heat pump until a service person confirms that the portion where the refrigerant leaks is repaired.

CAUTION
· Do not use the heat pump for other purposes. In order to avoid any quality deterioration, do not use the unit for cooling precision instruments, food, plants, animals or works of art. · Before cleaning, be sure to stop the operation, turn the breaker off or pull out the supply cord. Otherwise, an electric shock and injury may result. · In order to avoid electric shock or fire, make sure that an earth leak detector is installed. · Be sure the heat pump is grounded. In order to avoid electric shock, make sure that the unit is grounded and that the earth wire is not connected to gas or water pipe, lightning conductor or telephone earth wire. · Do not operate the heat pump with a wet hand. An electric shock may happen. · Do not place items which might be damaged by moisture under the indoor unit. Condensation may form if the humidity is above 80%. · After a long use, check the unit stand and fitting for damage. If damaged, the unit may fall and result in injury. · To avoid oxygen deficiency, ventilate the room sufficiently if equipment with burner is used together with the
heat pump. · Arrange the drain hose to ensure smooth drainage. Incomplete drainage may cause wetting of the building, furniture etc. · Never touch the internal parts of the controller. Do not remove the front panel. Some parts inside are dangerous to touch, and a machine trouble may happen. · Never do the maintenances work by yourself. Please contact your local dealer to do the maintenances work. · Do not allow a child to mount on the unit or avoid placing any object on it. Falling or tumbling may result in injury. · Do not operate the heat pump when using a room fumigation – type insecticide. Failure to observe could cause the chemicals to become deposited in the unit, which could endanger the health of those who are hypersensitive to chemicals. · Do not place appliances which produce open fire in places exposed to the air flow from the unit or under the
indoor unit. It may cause incomplete combustion or deformation of the unit due to the heat. · Do not install the heat pump at any place where flammable gas may leak out.

Cod. 3541Z090 – Rev. 06 – 02/2023

EN

11

IDOLA S 3.2
If the gas leaks out and stays around the heat pump, a fire may break out. · The appliance is not intended for use by young children or infirm persons without supervision. · Young children should be supervised to ensure that they do not play with the appliance. · The temperature of refrigerant circuit will be high, please keep the interconnection cable away from the copper
tube.
WARNING
Do not use means to accelerate the defrosting process or to clean, other than those recommended by the manufacturer.
The appliance shall be stored in a room without continuously operating ignition sources (for example: open flames, an operating gas appliance or an operating electric heater. Do not pierce or burn.
Be aware that refrigerants may not contain an odour.
1.2 Information servicing 1) Checks to the area Prior to beginning work on systems containing flammable refrigerants, safety checks are necessary to ensure that the risk of ignition is minimised. For repair to the refrigerating system, the following precautions shall be complied with prior to conducting work on the system.
2) Work procedure Works shall be undertaken under a controlled procedure so as to minimise the risk of a flammable gas or vapour being present while the work is being performed.
3) General work area All maintenance staff and others working in the local area shall be instructed on the nature of work being carried out. work in confined spaces shall be avoided.
4) Checking for presence of refrigerant The area shall be checked with an appropriate refrigerant detector prior to and during work, to ensure the technician is aware of potentially flammable atmospheres. Ensure that the leak detection equipment being used is suitable for use with flammable refrigerants, i.e. no sparking, adequately sealed or intrinsically safe.
5) Presence of fire extinguisher If any hot work is to be conducted on the refrigeration equipment or any associated parts, appropriate fire extinguishing equipment shall be available to hand. Have a dry power or CO2 fire extinguisher adjacent to the charging area.
6) No ignition sources No person carrying out work in relation to a refrigerating system which involves exposing any pipe work that contains or has contained flammable refrigerant shall use any sources of ignition in such a manner that it may lead to the risk of fire or explosion. All possible ignition sources, including cigarette smoking, should be kept sufficiently far away from the site of installation, repairing, removing and disposal, during which flammable refrigerant can possibly be released to the surrounding space. Prior to work taking place, the area around the equipment is to be surveyed to make sure that there are no flammable hazards or ignition risks. NO SMOKING signs shall be displayed.
7) Ventilated area Ensure that the area is in the open or that it adequately ventilated before breaking into the system or conducting any hot work. A degree of ventilation shall continue during the period that the work is carried out. The ventilation should safely disperse any released refrigerant and preferably expel it externally into the atmosphere.
8) Checks to the refrigerating equipment Where electrical components are being changed, they shall be fit for the purpose and to the correct specification. At all times the manufacturer s maintenance and service guidelines shall be followed. If in doubt consult the manufacturer s technical department for assistance. The following checks shall be applied to installations using flammable refrigerants: · The actual refrigerant charge is in accordance with the room size within which the refrigerant containing parts are installed; · The ventilation machinery and outlets are operating adequately and are not obstructed; If an indirect refrigerating circuit is being used, the secondary circuits shall be checked for the presence of refrigerant; marking to the equipment continues to be visible and legible. Marking and signs that are illegible shall be corrected; Refrigeration pipe or components are installed in a position where they are unlikely to be exposed to any substance which may corrode refrigerant containing components, unless the components are constructed of materials which are inherently resistant to being corroded or are suitably protected against being so corroded.

12

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9) Checks to electrical devices Repair and maintenance to electrical components shall include initial safety checks and component inspection procedures. If a fault exists that could compromise safety, then no electrical supply shall be connected to the circuit until it is satisfactorily dealt with. If the fault cannot be corrected immediately but it is necessary to continue operation, and adequate temporary solution shall be used. This shall be reported to the owner of the equipment so all parties are advised. Initial safety checks shall include: · That capacitors are discharged: this shall be done in a safe manner to avoid possibility of sparking; · That there no live electrical components and wiring are exposed while charging, recovering or purging the system; · That there is continuity of earth bonding.
10) Repairs to sealed components a) During repairs to sealed components, all electrical supplies shall be disconnected from the equipment being worked upon prior to any removal of sealed covers, etc. If it is absolutely necessary to have an electrical supply to equipment during servicing, then a permanently operating form of leak detection shall be located at the most critical point to warn of a potentially hazardous situation. b) Particular attention shall be paid to the following to ensure that by working on electrical components, the casing is not altered in such a way that the level of protection is affected. This shall include damage to cables, excessive number of connections, terminals not made to original specification, damage to seals, incorrect fitting of glands, etc. · Ensure that apparatus is mounted securely. · Ensure that seals or sealing materials have not degraded such that they no longer serve the purpose of preventing the ingress of flammable atmospheres. Re-
placement parts shall be in accordance with the manufacturer s specifications.
NOTE
The use of silicon sealant may inhibit the effectiveness of some types of leak detection equipment. Intrinsically safe components do not have to be isolated prior to working on them.
11) Repair to intrinsically safe components Do not apply any permanent inductive or capacitance loads to the circuit without ensuring that this will not exceed the permissible voltage and current permitted for the equipment in use. Intrinsically safe components are the only types that can be worked on while live in the presence of a flammable atmosphere. The test apparatus shall be at the correct rating. Replace components only with parts specified by the manufacturer. Other parts may result in the ignition of refrigerant in the atmosphere from a leak.
12) Cabling Check that cabling will not be subject to wear, corrosion, excessive pressure, vibration, sharp edges or any other adverse environmental effects. The check shall also take into account the effects of ageing or continual vibration from sources such as compressors or fans.
13) Detection of flammable refrigerants Under no circumstances shall potential sources of ignition be used in the searching for or detection of refrigerant leaks. A halide torch (or any other detector using a naked flame) shall not be used.
The following leak detection methods are deemed acceptable for systems containing flammable refrigerants system.
Electronic leak detectors must be used to detect flammable refrigerants, but the sensitivity may not be adequate, or may need re-calibration (detection equipment must be calibrated in a refrigerant-free area.) Ensure that the detector is not a potential source of ignition and is suitable for the refrigerant. Leak detection equipment shall be set at a percentage of the LFL of the refrigerant and shall be calibrated to the refrigerant employed and the appropriate percentage of gas (25% maximum) is confirmed.
Leak detection fluids are also suitable for use with most refrigerants but the use of detergents containing chlorine shall be avoided as the chlorine may react with the refrigerant and corrode the copper pipe-work.
NOTE Examples of leak detection fluids are: · bubble method · fluorescent method agents
If a leak is suspected, all naked flames shall be removed/extinguished. If a leakage of refrigerant is found which requires brazing, all of the refrigerant must be recovered from the system, or isolated (by means of shut off valves) in a part of the system remote from the leak. Removal of refrigerant must be done according to Clause DD.9.
14) Removal and evacuation Standard procedures must be sued when entering the refrigerant circuit to carry out repairs for any other reason. It is, however, important, to observe best practices because flammability is a hazard. The following procedure shall be adhered to: · Remove refrigerant; · Purge the circuit with inert gas; · Evacuate; · Purge with inert gas; · Open the circuit by cutting or brazing.

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13

IDOLA S 3.2
The refrigerant charge shall be recovered into the correct recovery cylinders. For appliances containing flammable refrigerants, the system shall be purged with oxygen-free nitrogen to render the appliance safe for flammable refrigerants. This process may need to be repeated several times. Compressed air or oxygen shall not be used for purging refrigerant systems.
For appliances containing flammable refrigerants, refrigerants purging shall be achieved by breaking the vacuum in the system with oxygen-free nitrogen and continuing to fill until the working pressure is achieved, then venting to atmosphere, and finally pulling down to a vacuum. This process shall be repeated until no refrigerant is within the system. When the final oxygen-free nitrogen charge is used, the system shall be vented down to atmospheric pressure to enable work to take place. This operation is absolutely vital if brazing operations on the pipe-work are to take place.
Ensure that the outlet for the vacuum pump is not close to any potential ignition sources and that ventilation is available.
15) Charging procedures In addition to conventional charging procedures, the following requirements shall be followed: · Ensure that contamination of different refrigerants does not occur when using charging equipment. Hoses or lines shall be as short as possible to minimize the
amount of refrigerant contained in them. · Cylinders shall be kept in an appropriate position according to the instructions. · Ensure that the refrigerating system is earthed prior to charging the system with refrigerant. · Label the system when charging is complete (if not already). · Extreme care shall be taken not to overfill the refrigerating system.
Prior to recharging the system it shall be pressure tested with OFN. The system shall be leak tested on completion of charging but prior to commissioning. A follow up leak test shall be carried out prior to leaving the site.
16) Decommissioning Before carrying out this procedure, it is essential that the technician is completely familiar with the equipment and all its detail. It is recommended good practice that all refrigerants are recovered safely. Prior to the task being carried out, an oil and refrigerant sample shall be taken. In case analysis is required prior to re-use of recovered refrigerant. It is essential that electrical power is available before the task is commenced.
a) Become familiar with the equipment and its operation. b) Isolate system electrically c) Before attempting the procedure ensure that: · Mechanical handling equipment is available, if required, for handling refrigerant cylinders; · All personal protective equipment is available and being used correctly; · The recovery process is supervised at all times by a competent person; · Recovery equipment and cylinders conform to the appropriate standards. d) Pump down refrigerant system, if possible. e) If a vacuum is not possible, make a manifold so that refrigerant can be removed from various parts of the system. f) Make sure that cylinder is situated on the scales before recovery takes place. g) Start the recovery machine and operate in accordance with manufacturer s instructions. h) Do not overfill cylinders. (No more than 80% volume liquid charge). i) Do not exceed the maximum working pressure of the cylinder, even temporarily. j) When the cylinders have been filled correctly and the process completed, make sure that the cylinders and the equipment are removed from site promptly and all isolation valves on the equipment are closed off. k) Recovered refrigerant shall not be charged into another refrigeration system unless it has been cleaned and checked.
17) Labelling Equipment shall be labelled stating that it has been de- commissioned and emptied of refrigerant. The label shall be dated and signed. Ensure that there are labels on the equipment stating the equipment contains flammable refrigerant.
18) Recovery When removing refrigerant from a system, either for service or decommissioning, it is recommended good practice that all refrigerants are removed safely. When transferring refrigerant into cylinders, ensure that only appropriate refrigerant recovery cylinders are employed. Ensure that the correct numbers of cylinders for holding the total system charge are available. All cylinders to be used are designated for the recovered refrigerant and labelled for that refrigerant (i.e. special cylinders for the recovery of refrigerant). Cylinders shall be complete with pressure relief valve and associated shut-off valves in good working order. Empty recovery cylinders are evacuated and, if possible, cooled before recovery occurs.
The recovery equipment shall be in good working order with a set of instructions concerning the equipment that is at hand and shall be suitable for the recovery of flammable refrigerants. In addition, a set of calibrated weighing scales shall be available and in good working order. Hoses shall be complete with leak-free disconnect couplings and in good condition. Before using the recovery machine, check that it is in satisfactory working order, has been properly maintained and that any associated electrical components are sealed to prevent ignition in the event of a refrigerant release. Consult manufacturer if in doubt.
The recovered refrigerant shall be returned to the refrigerant supplier in the correct recovery cylinder, and the relevant Waste Transfer Note arranged. Do not mix refrigerants in recovery units and especially not in cylinders.
If compressors or compressor oils are to be removed, ensure that they have been evacuated to an acceptable level to make certain that flammable refrigerant does not remain within the lubricant. The evacuation process must be carried out prior to returning the compressor to the suppliers. Only electric heating to the compressor body shall be employed to accelerate this process. When oil is drained from a system, it shall be carried out safely.

14

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20) Transportation, marking and storage for units · General. The following information is provided for units that employ flammable refrigerants. · Transport of equipment containing flammable refrigerants. Attention is drawn to the fact that additional transportation regulations may exist with respect to equip-
ment containing flammable gas. The maximum number of pieces of equipment or the configuration of the equipment permitted to be transported together will be determined by the applicable transport regulations. · Marking of equipment using signs. Signs for similar appliances used in a work area are generally addressed by local regulations and give the minimum requirements for the provision of safety and/or health signs for a work location. All required signs are to be maintained and employers should ensure that employees receive suitable and sufficient instruction and training on the meaning of appropriate safety signs and the actions that need to be taken in connection with these signs. The effectiveness of signs should not be diminished by too many signs being placed together. Any pictograms used should be as simple as possible and contain only essential details. · Disposal of equipment using flammable refrigerants. See national regulations. · Storage of equipment/appliances. The storage of the appliance should be in accordance with the applicable regulations or instructions, whichever is more stringent. · Storage of packed (unsold) equipment. Storage package protection should be constructed in such a way that mechanical damage to the equipment inside the package will not cause a leak of the refrigerant charge. The maximum number of pieces of equipment permitted to be stored together will be determined by local regulations.

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15

IDOLA S 3.2
2. GENERAL FEATURES
2.1 Presentation of the system

MAIN FEATURES: This series of air-water heat pumps satisfies the winter and summer air conditioning needs of residential and commercial systems of small and medium power and allows the production of domestic hot water (DHW) through an external boiler. All the units are suitable for split installation (which avoids the risk of freezing in particularly rigid outdoor applications) and are capable of producing water up to 65°C and can therefore be used in radiant systems, fan coil units, radiators. The user interface consists of a digital controller mounted on the indoor unit, equipped with a large display and simple setting commands.
INDOOR UNIT FEATURES · All the components (plate heat exchanger, circulator, etc.) and all the pipes of the hydraulic circuit are thermally insulated to avoid the formation of condensation and reduce heat losses. · Brazed stainless steel water / gas plate heat exchanger controlled and protected by temperature probes on both the water and refrigerant side · Low consumption circulator with brushless DC motor · System electric heater (3 kW single stage for mod. 4 – 6 – 8 – 10 – 12 – 14 – 16, 6 kW single stage for mod. 12T – 14T – 16T) · Water flow switch · System expansion vessel of 10 litres · 3-way diverter valve for DHW production · Water filter (Y-shape) supplied (not installed)
OUTDOOR UNIT FEATURES · Approved for external use in completely exposed site. · Refrigerant circuit contained in a compartment sheltered from the air flow to facilitate maintenance operations · Reduced inrush current thanks to Inverter technology · Compressor with twin rotary DC INVERTER motor equipped with crankcase oil heater, positioned on anti-vibration rubber supports and wrapped in a double layer of soundabsorbing material to minimize vibrations and noise · DC inverter compressor that allows to modulate the capacity from 30 to 120% of the rated capacity · Electronic bi-flow expansion valve · Reverse cycle valve · Axial fans with brushless DC motor complete with safety protection grilles · Finned coil consisting of copper pipes and hydrophilic aluminium fins with anti-corrosion treatment · The circuit is controlled by temperature probes and pressure transducers and protected by high and low pressure switches. · All the units are equipped with variable speed control of the fans which allows operation with low external temperatures in cooling and high external temperatures in heating. · External air temperature probe pre- installed on the unit.
OUTDOOR UNIT ACCESSORIES · AVG – Rubber antivibration dampers.
SYSTEM ACCESSORIES TP – Temperature probe: this is a probe that can be used to expand the control functions of the unit. In fact, it can be used for:
· management of a 2-zone kit (direct and mixed) external to the unit for reading the mixed zone flow · solar thermal management for reading the temperature of the solar collector

2.2 Components supplied with the indoor unit

Description Installation, maintenance and user manual (this manual)

Quantity

–

Indoor unit 10

Indoor unit 16 – 16T

1

1

Water filter (Y-shaped)

1

1

T5: temperature probe for the DHW heater (cable length = 10 m)

1

1

Energy label

RVL-I PLUS 5 55°C

A++ A+ A B C D E F G
– dB

A+ +
5 7 5 kW

Y IJA IE IA
35°C A+ +
5 5 5 kW

63 dB 2015

811/2013

1

1

Brass 3/8″ SAE – 1/4″ SAE reducer

1

–

16

EN

Cod. 3541Z090 – Rev. 06 – 02/2023

IDOLA S 3.2

2.3 The control system
The user interface consists of a controller integrated into the indoor unit with a multilanguage menu (IT Italian, EN English, ES Spanish, FR French, NL Dutch, Polish PL, Romanian RO, EL Greco, Albasian SQ, Serbian SR) which allows the management of:
· HEATING AND COOLING SYSTEM where the heat pump is the only energy source. If the unit is activated in heating or cooling mode, it works by modulating the compressor frequency to maintain the produced water temperature at the set point value set by the controller.
· DOMESTIC HOT WATER PRODUCTION (DHW). The unit is activated in heating mode to maintain the DHW external tank temperature at the set point value.
· ADDITIONAL ENERGY SOURCES: · – System electric heater (IBH). Depending on the parameters set, it can be activated in Integration or substitution of the heat pump when the system serves the heating plant. The electronic board will activate the electric heater if the heat pump does not work due to an alarm or due to reached operating limits. · – Boiler (if installed). Depending on the parameters set, it can be activated in Integration or substitution of the heat pump when the system serves the plant in heating or DHW production. The electronic board will activate the boiler if the heat pump does not work due to an alarm or due to reached operating limits.
· ELECTRIC HEATER DHW TANK. In sanitary mode it can manage an electric heater inserted in the DHW tank as an integration to the heat pump, antilegionella function, or as a backup energy source for DHW production if the heat pump does not work due to an alarm or due to operating limits. The DHW tank electric heater is essential for the anti-legionella function and for the photovoltaic input function.
· FAST DHW. This function can be activated manually that allows you to give priority to the domestic hot water by activating all the energy sources (heat pump, electric resistances, boiler) available for DHW heating to bring the DHW tank to the set point in the shortest possible time.
· ANTI-LEGIONELLA FUNCTION. It is possible to set anti-legionella weekly cycles from the controller. In order to carry out these cycles correctly, the heat pump must be integrated with the DHW tank or electric heater.
· SILENT MODE. If active, it involves a reduction of the maximum compressor frequency and fan speed to reduce the noise emitted and the power absorbed by the unit. There are 2 levels of silencing. Through time programming, it is possible to define the desired silencing level for 2 daily time bands (e.g. at night).
· ON / OFF via an external contact. The unit can be activated and deactivated (e.g. zone thermostat / remote switch) via an external contact: in this case the unit will operate in the way set via the controller keyboard.
· HEATING / COOLING via external contacts. The unit can be activated and deactivated in cooling and heating mode via 2 external contacts (e.g. zone thermostat that manages the request for cooling and heating / remote switch).
· ECO. Possibility of warmly defining the time bands and relative setpoint for the ECO mode.

· WEEKLY HOURLY PROGRAMMING. For programming different time bands for each day of the week defining the operating setpoint for each band.
· ANTIFREEZE PROTECTION. It is activated if the water temperature measured by the temperature probes present in the indoor unit falls below 4°C: it activates the internal circulator and possibly the heat pump in heating mode, and/or the electric DHW booster heater (if installed) and/or the boiler (if installed).
· MANAGEMENT OF UP TO 2 ZONES (1 mixed and 1 direct). The unit is able to manage the pumps of both zones and. for the mixed zone only, the mixing valve and the water delivery temperature probe.
· SOLAR THERMAL MANAGEMENT. The unit is able to manage the solar pump and the temperature of the solar collector.
· PHOTOVOLTAIC INPUT AND SMART GRID INPUT. The unit is equipped with 2 digital contacts to manage an input from a photovoltaic system and the electricity grid. Working logic: · – if the photovoltaic input is closed, the unit activates the DHW mode with DHW setpoint = 70°C and will activate the electric heater of the DHW tank (if installed). The unit will continue to operate in cooling / heating mode with the normal logic set. · – If the photovoltaic input is open and the smart grid input is closed, the unit works normally. · – If the photovoltaic input is open and the smart grid input is open, the unit deactivates the DHW mode and can operate in cooling / heating mode for a defined period (which can be set via a parameter), then it will be deactivated.
· CURRENT LIMITATION BY PARAMETER. · REMOTE CONTROL OF THE UNIT VIA APP (available for IOS and An-
droid). · DETAILED ERROR DIAGNOSTICS WITH HISTORICAL ALARMS. · DISPLAY OF ALL OPERATING PARAMETERS.
45 °C
25 °C
fig. 2 – user interface

Cod. 3541Z090 – Rev. 06 – 02/2023

EN

17

IDOLA S 3.2

3. TECHNICAL DATA AN PERFORMANCE

A35W7 A35W18 A7W55 A7W45 A7W35

3.1 System technical data – Models Thermal power Power absorbed COP
Water flow rate External static pressure Heating capacity Power absorbed COP
Water flow rate External static pressure Heating capacity Power absorbed COP
Water flow rate External static pressure Cooling capacity Power absorbed EER
Water flow rate External static pressure Cooling capacity Water flow rate EER
Water flow rate External static pressure

4

6

8

10

12 14

16 12T 14T 16T

nom

4.20 6.35 8.40 10.0 12.1 14.5 15.9 12.1 14.5 15.9

nom

0.82 1.28 1.63 2.02 2.44 3.15 3.53 2.44 3.15 3.53

5.10 4.95 5.15 4.95 4.95 4.60 4.50 4.95 4.60 4.50

722 1092 1445 1720 2081 2494 2735 2081 2494 2735

81

76

61

47

58

42

34

58

42

34

nom

4.30 6.30 8.30 10.0 12.3 14.1 16.0 12.3 14.1 16.0

nom

1.13 1.70 2.16 2.67 3.32 3.92 4.57 3.32 3.92 4.57

3.80 3.70 3.85 3.75 3.70 3.60 3.50 3.70 3.60 3.50

740 1084 1428 1720 2116 2425 2752 2116 2425 2752

81

76

62

47

57

45

33

57

45

33

nom

4.40 6.00 7.50 9.50 11.9 13.8 16.0 11.9 13.8 16.0

nom

1.49 2.03 2.36 3.06 3.90 4.68 5.61 3.90 4.68 5.61

2.95 2.95 3.18 3.10 3.05 2.95 2.85 3.05 2.95 2.85

473 645 806 1021 1279 1484 1720 1279 1484 1720

83

81

80

77

85

79

71

85

79

71

nom

4.50 6.50 8.30 9.90 12.0 12.9 13.6 12.0 12.9 13.6

nom

0.82 1.35 1.64 2.18 3.04 3.49 3.77 3.04 3.49 3.77

5.50 4.80 5.05 4.55 3.95 3.70 3.61 3.95 3.70 3.61

774 1118 1428 1703 2064 2219 2339 2064 2219 2339

80

75

62

48

58

53

48

59

53

48

nom

4.70 6.50 7.45 8.20 11.5 12.4 14.0 11.5 12.4 14.0

nom

1.36 2.17 2.22 2.52 4.18 4.96 5.60 4.18 4.96 5.60

3.45 3.00 3.35 3.25 2.75 2.50 2.50 2.75 2.50 2.50

808 1118 1281 1410 1978 2133 2408 1978 2133 2408

80

75

68

63

61

56

46

61

56

46

A7W35 = source: air in 7°C d.b. 6°C w.b. / system: water in 30°C out 35°C

The values refer to a unit without any options or accessories.

A7W45 = source: air in 7°C d.b. 6°C w.b. / system: water in 40°C out 45°C

A7W55 = source: air in 7°C d.b. 6°C w.b. / system: water in 47°C out 55°C

Data declared according to EN 14511:

A35W18 = source: air in 35°C d.b. / system: water in 23°C out 18°C

EER (Energy Efficiency Ratio) = ratio of the total cooling capacity to the effective power input of the unit A35W7 = source: air in 35°C d.b. / system: water in 12°C out 7°C

COP (Coefficient Of Performance) = ratio of the total heating capacity to the effective power input of the unit

UM
kW kW W/W l/h kPa kW kW W/W l/h kPa kW kW W/W l/h kPa kW kW W/W l/h kPa kW kW W/W l/h kPa

Outdoor unit technical data
Power supply Type of compressor No. compressors / No. refrigeration circuits Exchanger type Fan type No. of fans Refrigerant fittings / liquid line Refrigerant fittings / gas line Type of refrigerant GWP Factory refrigerant charge * Refrigeration lines (max length / max vertical height difference)
A7W35

SWL – Sound power level in heating **

A7W55 Max Sil. 1

Sil. 2

A35W18

SWL – Sound power level in cooling *

A35W7 Max Sil. 1

Sil. 2

Maximum input current Net weight Weight of packaged unit

4

6

1/4″ SAE / Ø 6.35
1.5 / 1.01
55 57 56 58 60 61 56 56 53 53 56 58 56 60 60 61 55 57 52 54 12 14
58 65

8

10 12 14 16 12T 14T 16T

220/240-1-50

380/415-3-50

Twin Rotary DC

1 / 1

finned coil

DC axial

1

3/8″ SAE / Ø 9.52

5/8″ SAE / Ø 15.88

R32

675

1.65 / 1.11

1.84 / 1.24

30 / 20

59 60 59 60 61 62 57 58 55 55 60 60 60 60 61 62 57 58 54 54 16 17
77 94

64 65 68 64 65 68 65 65 69 62 62 63 56 56 56 64 64 69 65 65 69 65 65 69 62 62 63 56 56 56 25 26 27
96 114

64 65 68 64 65 68 65 65 69 62 62 63 56 56 56 64 64 69 65 65 69 65 65 69 62 62 63 56 56 56 10 11 12
112 130

UM V-ph-Hz
no. no. type kg-CO2 eq. kg / t-CO2 eq.
m
dB(A)
dB(A)
dB(A)
dB(A)
dB(A)
dB(A)
dB(A)
dB(A)
dB(A)
dB(A) A kg kg

• The factory refrigerant charge allows a maximum length of the refrigeration lines of 15 metres. The maximum length of the refrigeration lines is 30 meters: in this case it is necessary to integrate the charge during installation.
  ** : SWL = Sound power levels, with reference to 1×10-12 W with unit operating in conditions: A7W35 = source: air in 7°C d.b. 6°C w.b. / system: water in 30°C out 35°C. A7W55 = source: air in 7°C d.b. 6°C w.b. / system: water in 47°C out 55°C. A35W18 = source: air in 35°C d.b. / system: water in 23°C out 18°C A35W7 = source: air in 35°C d.b. / system: water in 12°C out 7°C Max = at maximum conditions in heating / cooling mode Sil. 1 = if silent level 1 active in heating / cooling mode Sil. 2 = if silent level 2 active in heating / cooling mode The Total sound power level in dB(A) is measured in accordance with standard ISO 9614.

18

EN

Cod. 3541Z090 – Rev. 06 – 02/2023

IDOLA S 3.2

Indoor unit technical data Power supply Exchanger type Type of pump System expansion tank volume System water safety valve calibration System hydraulic fittings DHW hydraulic fittings Refrigerant fittings / liquid line * Refrigerant fittings / gas line Minimum system water content Min. coil surface for DHW heater (minimum / recommended) Internal backup heater System temperature (min-max)
System pressure (min-max)
SWL – Sound power level indoor unit Max absorbed current Net weight Weight when working ** Weight of packaged unit

steel enamelled

10

16

16T

230V ~ 50 Hz

400V ~ 3N 50 Hz

Brazed stainless steel plate type

Electronic circulator (8 mca)

Electronic circulator (9 mca)

10

3

1″ GAS M

3/4″ GAS M

3/8″ SAE / Ø 9.52

5/8″ SAE / Ø 15.88

15 1.4 / 2.5

25 1.75 / 4.0

1.7 / 3.0

2.5 / 5.6

3

6

5 – 65

1 – 3

39

39

39

39

40

40

40

40

40

40

14

10

33

35

36

35

37

38

35

37

38

* For matching with external units mod. 4-6, an adapter from 3/8″ SAE to 1/4″ SAE is supplied for the liquid line Ø 6.35. ** Weight refers to basic unit without accessories

UM l bar l m2 m2
kW
°C
bar
dB(A)
A kg kg kg

3.2 ERP data

Model

4

6

8

10

12

14

16 12T 14T 16T UM

low temperature (produced water 35°C) Efficiency class in

191

195

205

204

189

185

182

189

185

182 s (%)

A+++

class

heating

129

138

131

136

135

135

133

135

135

133 s (%)

average temperature (produced water 55°C)

A++

class

SCOP

low temperature (produced water 35°C)

4.85 4.95 5.21 5.19 4.81 4.72 4.62 4.81 4.72 4.62 W/W

average temperature (produced water 55°C) 3.31 3.52 3.36 3.49 3.45 3.47 3.41 3.45 3.47 3.41 W/W

SEER

produced water 7°C produced water 18°C

4.99 5.34 5.83 5.98 4.89 4.86 4.69 4.86 4.83 4.67 W/W 7.77 8.21 8.95 8.78 7.10 6.90 6.75 7.04 6.85 6.71 W/W

NOTE: Efficiency class calculated according to the European regulation 811/2013. The values refer to a unit without any optionals or accessories.

3.3 Operating limits heat pump
COOL MODE

HEAT MODE

DHW MODE

External air temperature °C External air temperature °C External air temperature °C

Produced water temperature °C
Operation range by heat pump with possible limitation and protection.

–
–
–

Produced water temperature °C
Operation range by heat pump with possible limitation and protection.
With IBH (system electric heater) installed.
Maximum inlet water temperature line for heat pump operation.

Produced water temperature °C Operation range by heat pump with possible limitation and protection.
With IBH (system electric heater) installed.
Maximum inlet water temperature line for heat pump operation.

NOTE DHW MODE: the produced water temperature is the temperature of the water produced by the unit and not the DHW temperature available to the user, which is a function of this parameter and of the surface of the coil of the DHW cylinder, if any.

Cod. 3541Z090 – Rev. 06 – 02/2023

EN

19

3.4 Available static pressure
3.4.1 Heat pump circulator indoor unit
100

IDOLA S 3.2

90

80

70

Available static pressure [kPa]

60
Mod. 16 – 16T
50

40

30

Mod. 10

20

10

0 600

800

1000

1200

1400

1600

1800

2000

2200

2400

2600

2800

3000

3200

3400

3600

Water flow rate [l/h] The graph provides the available static pressure granted by the internal circulator (P_i) at the maximum speed. The internal circulator speed is managed by the hydronic board in order to insure the correct water temperature difference as in the table below:

T= TWin-TWout

Cooling mode For all set points
5

Set point <50°C 5

Heating mode

Set point >50°C 8

NOTE
For the correct operation of the system, a hydraulic bypass must be provided on the system capable of ensuring sufficient water circulation to avoid the blocking of the heat pump due to lack of water flow alarm.
This is, for example, essential if the system includes zone valves or thermostatic valves which, if they go into partial or complete closure, would result in a reduction / lack of water flow with consequent water flow switch alarm and therefore the blocking the heat pump.

20

EN

Cod. 3541Z090 – Rev. 06 – 02/2023

IDOLA S 3.2
4. DIMENSIONAL AND PHYSICAL DATA

422

320

702 52 60
117 175
38,5 20 12

45 °C 25 °C

Front view

52 60 115 60

135

145

8

9

10

11

Side view Mounting bracket

G

L

E1 43
144 50 Bottom view

E2 E3 45 43
164 227

Ø3,5

Ø3,5 240

Ø8

Ø8

Ø8

Ø8

67,5

50

57,5

57,5

50

250

8 System outlet – Ø 1″ M
9 DHW outlet – Ø 3/4″ M 10 DHW inlet – Ø 3/4″ M 11 System inlet – Ø 1″ M
145 Water pressure gauge

fig. 3 – dimensional data and connections
G Gas line – Ø 15.88 (5/8″) L * Liquid line – Ø 9.52 (3/8″) E1 Signal wires cable gland E2 Power wires cable gland E3 Power supply cable with cable gland

• For matching with outdoor units mod. 4-6, an adapter from 3/8″ SAE to 1/4″ SAE is supplied for the liquid line Ø 6.35.

Cod. 3541Z090 – Rev. 06 – 02/2023

EN

21

5. GENERAL VIEW AND INTERNAL UNIT HYDRAULIC DIAGRAM

FL

36

TW_out

56

IBH

T1

IDOLA S 3.2

56

36 FL
7:BRXW

IBH

SP

SV1

8 9 G L 10 11

145

fig. 4 – General view

LEGEND 8 System outlet 9 DHW outlet 10 DHW inlet 11 System inlet 14 Safety valve 36 Automatic air vent valve 56 Expansion vessel 145 Water pressure gauge FL Flow switch G Gas line

SP T2B TW_in T2 Pi
14

7
SV1

7:BLQ
7%
Pi
7
14

8 9 G L 10

11

fig. 5 – Indoor unit hydraulic diagram

IBH L Pi SP SV1 T1 T2 T2B TW_in TW_out

System electrical heater
Liquid line
Water circulator
Plate heat exchanger Diverter valve
Heat pump outlet water temperature probe Heat pump liquid refrigerant temperature probe Heat pump gas refrigerant temperature probe Plate heat exchanger water inlet temperature probe Plate heat exchanger water outlet temperature probe

22

EN

Cod. 3541Z090 – Rev. 06 – 02/2023

23

EN

Cod. 3541Z090 – Rev. 06 – 02/2023

KEY 6 7 8 9 10 11 12
13 13.1 14 17 18 21 22 23

Ts

UI

56

36 FL
7:BRXW

IBH

SP

7
SV1

7:BLQ
7%
Pi
7
14

8 9 G L 10

11

13 23

Ps

37

UE

Water drain Valve (not supplied) Water fill Valve (not supplied) System outlet
DHW outlet DHW inlet System inlet
Hydraulic separator and booster pump (not supplied), assess the need to install in the event of high water load losses
in the system.
DHW boiler (not supplied) Electrical Heater DHW boiler (not supplied) Plant water inertial tank (not supplied) Check valve (not supplied) Bypass valve (not supplied) DHW Expansion Vessel (not supplied) DHW safety valve (not supplied) Thermostatic mixing valve(not supplied)

21 T5
22 17

18

T1_c M1

Tn_c Mn

13.1

FCU1

…….

FCUn

SV2

14

33

M

18

T1_h M1

Tn_h Mn

67

12 29

12

FHL1 ……. FHLn

C
R TWR

M

33 37 FCU 1 … n
FHL 1…n G L P_o
P_s SV2 T1_c – Tn_c T1_h – Tn_h Ts TWR

System expansion vessel (not supplied) Solar circuit expansion vessel (not supplied) Fan coil units: they can be used for cooling only with
heating without radiant floor or for cooling and
heating without radiant floor
Radiant floor / radiator only heating in zones Gas Line Liquid Line
External pump (not supplied), assess the need to install based on the system water load loss,
controlled by the heat pump.
Solar circuit water pump (not supplied) Three-way valve for heating / cooling zone (not supplied) Cooling request room thermostat (not supplied) Heating request room thermostat (not supplied) Temperature probe for solar panel (accessory) Integration towel rail heater in bathroom; if connected to the heating
system, it must be integrated with an electric heating element (R)

operated by the control (C) which closes the valve (M) at the

same time; if not connected to the system, the heating is supplied

by the electric heating element (R) only operated by the control (C)

UI

Internal unit

UE

External unit

– – – –

Electrical connections

NOTE For the correct operation of the system, a hydraulic bypass must be provided on the system capable of ensuring sufficient water circulation to avoid the blocking of the heat pump due to lack of water flow alarm. This is, for example, essential if the system includes zone valves or thermostatic valves which, if they go into partial or complete closure, would result in a reduction / lack of water flow with consequent water flow switch alarm and therefore the blocking the heat pump.

IDOLA S 3.2
6. SYSTEM EXEMPLARY SCHEMES

IDOLA S 3.2
7. INSTALLATION
7.1 Inspections on arrival Upon receipt of the unit it is essential to check that you have received all the material indicated on the accompanying document, and also that it has not been damaged during transport. If so, have the dispatcher ascertain the extent of the damage suffered, alerting our customer management office in the meantime. Only by acting in this way and in a timely manner will it be possible to have the missing material or compensation for damages.

7.1.1 Packing and storing All machines are packed in cardboard boxes specific for each unit. The indications required to correctly handle the appliance while storing and installing it are written on the packing. The storage temperature must be between -25°C and 55°C.
NOTE
Do not abandon the packaging in the environment, but dispose of it as recycled waste.
Do not dispose of, leave or leave within the reach of children the packaging material as it may be a potential source of danger. Once the place in which the unit is to be installed has been chosen (see the relative sections) proceed as follows to unpack the indoor unit.
Installation requirements · The indoor unit is packed in a box. · At delivery, the unit must be checked and any damage must be reported immediately to the carrier claims agent. · Check if all indoor unit accessories are enclosed. · Bring the unit as close as possible to the final installation position in its original package in order to prevent damage during transport.
The indoor unit weight is approximately 40 kg and should be lifted by two persons.

fig. 6 –

7.1.2 Selecting the installation site and minimum operating area for indoor unit
WARNING
There is flammable refrigerant in the unit and it should be installed in a well-ventilated site. Be sure to adopt adequate measures to prevent the unit from being used as a shelter by small animals.
Small animals making contact with electrical parts can cause malfunction, smoke or fire. Please instruct the customer to keep the area around the unit clean.
The equipment is not intended for use in a potentially explosive atmosphere.
· Select an installation site where the following conditions are satisfied and one that meets with your customer’s approval. – Places that are well- ventilated. – Safe places which can bear the unit’s weight and vibration. – Places where there is no possibility of flammable gas or product leak. – Places where servicing space can be well ensured. – Places where the units’ piping and wiring lengths come within the allowable ranges. – Places where water leaking from the unit cannot cause damage to the location. Places where it may to be exposed to rain. – Do not install the unit in places often used as a work space. In case of construction work (e.g. grinding etc.) where a lot of dust is created, the unit must be covered. – Do not place any object or equipment on top of the unit (top plate) – Do not climb, sit or stand on top of the unit. – Be sure that sufficient precautions are taken in case of refrigerant leakage according to relevant local laws and regulations.
The place of installation must be free of powders, flammable objects or materials or corrosive gases. The unit is designed for wall hanging installation and is equipped as standard with a mounting bracket. The fixing to the wall must guarantee a stable and effective support.

24

EN

Cod. 3541Z090 – Rev. 06 – 02/2023

IDOLA S 3.2

NOTE
For the dismantling of the panelling and for normal maintenance activities the minimum operating spaces must be respected.

Select an installation location where the following conditions are met:

– Place that allows to respect the maximum lengths allowed for pipes, connections to the unit of temperature probes, remote control etc.

700

– Do not place objects or equipment on top of the unit.

– Make sure that all the precautions and prescriptions foreseen by local laws and

regulations regarding possible refrigerant leaks are correctly applied.

– It is advisable to place the heater for domestic hot water production as close as

possible to the indoor unit.

300

300

500

1150

fig. 7 – minimum operating area for indoor unit

CAUTION
The indoor unit should be installed in an indoor water proof place, or the safety of the unit and the operator cannot be ensured. · The indoor unit is to be wall mounted in an indoor location that meets the following requirements: · The installation location is frost-free. · The space around the unit is adequate for servicing, see fig. 7. · The space around the unit allows for sufficient air circulation. · There is a provision for pressure relief valve blow-off.

CAUTION
When the unit running in the cooling mode, condensate may drop from the water inlet and water outlet pipes. Please make sure the dropping condensate will not result in damage of your furniture and other devices. · The installation surface is a flat and vertical non-combustible wall, capable of supporting the operation weight of the unit. · All piping lengths and distance have been taken into consideration.

7.2 Minimum plant water content and requirements for DHW boiler (not supplied with the unit)

Indoor unit technical data Minimum system water content DHW heater – minimum coil surface (minimum / recommended)

steel enamelled

10 15 1.4 / 2.5 1.7 / 3.0

16

16T

25

1.75 / 4.0

2.5 / 5.6

Requirement
Maximum length allowed for the pipes between the DHW tank and the indoor unit (only for installations with DHW tank). The temperature probe cable supplied with the indoor unit is 10 m in length.

UM l m2 m2
Value 8m

Cod. 3541Z090 – Rev. 06 – 02/2023

EN

25

IDOLA S 3.2
7.4 Limits to the length and height difference of refrigerant pipes The length of the refrigerant pipes between the indoor and outdoor units must be as short as possible and is in any case limited by compliance with the maximum height difference values between the units. Diminution of the difference in height between the units (H1,H2) and of the pipe lengths (L) will limit the load losses, consequently increasing the overall efficiency of the machine. Comply with the limits given in the following tables.

45 °C 25 °C

H1 H2

fig. 8 – Outdoor unit under indoor unit

45 °C 25 °C
fig. 9 – Outdoor unit on indoor unit

Outdoor unit Liquid refrigerant connection Refrigerant gas connection Standard refrigerant load (R32)

4

6

8

10

12

14

16

12T

14T

16T

UM

1/4″

1/4″

3/8″

3/8″

3/8″

3/8″

3/8″

3/8″

3/8″

3/8″

SAE

5/8″

5/8″

5/8″

5/8″

5/8″

5/8″

5/8″

5/8″

5/8″

5/8″

SAE

1.5

1.5

1.65

1.65

1.84

1.84

1.84

1.84

1.84

1.84

kg

Indoor unit Liquid refrigerant connection Refrigerant gas connection

10

16

16T

UM

3/8″ (1)

3/8″ (1)

3/8″

3/8″

3/8″

3/8″

3/8″

3/8″

3/8″

3/8″

SAE

5/8″

5/8″

5/8″

5/8″

5/8″

5/8″

5/8″

5/8″

5/8″

5/8″

SAE

(1) For matching with outdoor units mod. 4-6 a reduction fitting from 3/8″ SAE to 1/4″ SAE is provided for liquid line Ø 6.35.

Refrigeration connections

4

6

8

10

12

14

16

12T

14T

16T

UM

Liquid refrigerant pipe (external diameter)

6.35

6.35

9.52

9.52

9.52

9.52

9.52

9.52

9.52

9.52

mm

Gas refrigerant pipe (external diameter)

15.88

15.88

15.88

15.88

15.88

15.88

15.88

15.88

15.88

15.88

mm

Maximum length of pipe with standard refrigerant load

15

15

15

15

15

15

15

15

15

15

m

Refrigerant load for each metre in length over 15 m

20

20

38

38

38

38

38

38

38

38

g/m

Maximum length between the indoor and outdoor unit

30

30

30

30

30

30

30

30

30

30

m

Maximum height difference (H1)

20

20

20

20

20

20

20

20

20

20

m

Maximum height difference (H2)

20

20

20

20

20

20

20

20

20

20

m

Contact our technical department for the required modifications if the units must operate beyond the specifications given above.

26

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Cod. 3541Z090 – Rev. 06 – 02/2023

IDOLA S 3.2
NOTE
Refrigerant pipes containing R32 refrigerant which connect refrigerating system components shall not be considered a source of leaked refrigerant for the purpose of evaluating potential for fire or explosion hazard relative to potential ignition sources within the appliance if the piping within the area of the appliance to be evaluated complies with all of the following;
· no connecting joints; no bends with centreline bend radius less than 2,5 times the external pipe diameter;
· protected from potential damage during normal operation, service or maintenance.
CAUTION To prevent the refrigerant piping from oxidizing inside when welding, it is necessary to charge nitrogen, or oxide will chock the circulation system. Pressured nitrogen [4.3 MPa (43 bar) for R32] should be used in the airtight testing. Tighten high/low pressure valves before charging pressured nitrogen. Charge pressure nitrogen from the connector on the pressure valves. The airtight testing should never use any oxygen, flammable gas or poisonous gas.
7.5 Refrigerant connections Comply with the following indications when connecting the refrigerant pipes: · Make sure that the refrigerant pipes can withstand the refrigerant maximum pressure (PS= 4,3MPa). · Make sure there is no any dirt or water before connecting the piping to the outdoor and indoor units. · Wash the pipes with high pressure nitrogen, never use refrigerant of outdoor unit. · Match the ends of the previously flared pipe with those of the connections on the indoor units (see part. L and G “fig. 3 – dimensional data and connections” on
page 21). · Tighten the union by hand and then torque it with the aid of an adequate wrench.

Indoor unit tubing Flare nut Pipings
fig. 10 To the outdoor unit · Match the ends of the pipe previously flared with those of the taps on the outdoor unit. · Screw the fitting by hand and then tighten it with a suitable wrench.

GL

fig. 11 –

The protective cap is a one-time part, it cannot be reused. In case it is removed, it should be replaced with a new one.

External Diam. Ø 6.35 Ø 9.52 Ø 15.88

Torque tightening (Nm) 15 25 45

Additional torque tightening (Nm) 16 26 47

CAUTION
To prevent the refrigerant piping from oxidizing inside when welding, it is necessary to charge nitrogen, or oxide will chock the circulation system.

Cod. 3541Z090 – Rev. 06 – 02/2023

EN

27

IDOLA S 3.2
7.5.1 Airtight test and leakage detection Before setting the system in a vacuum, it is advisable to make sure that the refrigerant circuit is tight, including the connecting joints between the pipes and the indoor unit. Proceed in the following way:
· With the service valves of the outdoor unit completely shut, remove the cap from the service tap (part 1 – fig. 12) and the union (part 2 – fig. 12) of the gas valve (the larger one)
· Connect the service valve to a pressure gauge unit plus an oxygen-free nitrogen bottle (OFN). · Pressurize the system to a maximum 43 bar (44kg/cm2). · Use liquid soap to check that the joints are tight and without leaks. Keep the bottle vertical during the pressurizing operation to prevent liquid nitrogen from infiltrating into the system! · Check all the connection joints on both the outdoor and indoor units to make sure that they are tight. Bubbles will form if leaks are present. If bubbles appear, make
sure that the unions have been tightened and that the flares are the right shape. · Wipe off the liquid soap with a rag. · Reduce the pressure of the nitrogen in the circuit by loosening the charge pipe from the bottle. · Having reduced the pressure, disconnect the nitrogen bottle.
CAUTION
The airtight testing should never use any oxygen, flammable gas or poisonous gas.
IU

OU G

45 °C 25 °C
GL

L
fig. 12 – Airtight test and leakage detection
7.5.2 Air purge with vacuum pump Air and humidity in the cooling circuit impair the operation of the unit with effects such as: increased pressure, reduced efficiency, formation of ice on the capillary and subsequent blockage of the same, corrosion in the circuit.
This is why a vacuum must be created in the connection pipes and indoor unit. Proceed in the following way: · Connect the previously described charging pipe to the vacuum pump. · Turn on the relative knob on the monometric unit to allow the pump to access the cooling circuit. · Wait until the pressure level measured by the pressure gauge is around 3 mm Hg (400 Pa) · As soon as the required vacuum value is reached, shut the connection cock and stop the vacuum pump.
IU

NOTE OU = IU =

Outdoor unit Indoor unit

28

EN

OU G
L
fig. 13 – Air purge with vacuum pump

45 °C 25 °C
GL

Cod. 3541Z090 – Rev. 06 – 02/2023

IDOLA S 3.2
7.5.3 Heat insulation In order to avoid the release of cold or heat from the connecting pipeline to the external environment during the operation of the equipment, please take effective insulation measures for the gas pipe and liquid pipe separately: 1) The gas side pipe should use closed cell foamed insulation material, which the fire-retardant is B1 grade and the heat resistance over 120°C. 2) When the external diameter of copper pipe12.7mm, the thickness of the insulating layer at least more than 15mm; When the external diameter of copper pipe15.9mm, the thickness of the insulating layer at least more than 20mm. 3) Please use heat-insulating materials to do the heat insulation without clearance for the connecting parts of the indoor unit pipes.
7.5.4 Refrigerant amount to be added Calculate the added refrigerant according to the diameter and the length of the liquid side pipe of the outdoor unit/indoor unit connection. If the length of the pipe on the liquid side is less than 15 meters, there is no need to add more refrigerant.

Refrigerant amount to be added

System model
4/6 08/10/2012/14/16/12T/14T/16T

Total length of liquid pipe L (m)

15m

15m

0g

(L-15)×20g

0g

(L-15)×38g

7.6 Hydraulic connections
CAUTION The safety valve outlet must be connected to a funnel or collection pipe to prevent water spurting onto the floor in case of overpressure in the heating circuit. Otherwise, if the discharge valve cuts in and floods the room, the manufacturer cannot be held liable.
NOTE
For the correct operation of the system, a hydraulic bypass must be provided on the system capable of ensuring sufficient water circulation to avoid the blocking of the heat pump due to lack of water flow alarm. This is, for example, essential if the system includes zone valves or thermostatic valves which, if they go into partial or complete closure, would result in a reduction / lack of water flow with consequent water flow switch alarm and therefore the blocking the heat pump. The water may drip from the discharge pipe of the pressure-relief device and that this pipe must be left open to the atmosphere. The pressure-relief device is to be operated regularly to remove lime deposits and to verify that it is not blocked. Before installation, flush all the pipes of the system thoroughly to remove any residuals or impurities that could affect proper operation of the unit. In case of replacement of generators in existing installations, the system must be completely emptied and cleaned of any sludge and pollutants. For that purpose only use suitable guaranteed products for heating systems (see next section), that do not harm metals, plastics or rubber. The manufacturer declines any liability for damage caused to the generator by failure to properly clean the system. Since the fittings of the indoor unit are brass and brass is a material that deforms easily, use suitable tools to connect the hydraulic circuit. Unsuitable tools may damage the pipes. Make the connections to the respective points (see “fig. 3 – dimensional data and connections” on page 21) and to the symbols given on the unit.
7.6.1 Antifreeze plant, antifreeze fluids, additives and inhibitors When necessary, antifreeze fluids, additives and inhibitors can be used only if the manufacturer of such fluids or additives guarantees that they are suitable and do not cause damage to the exchanger or other components and/or materials of the boiler/heat pump and plant. Do not use generic antifreeze fluids, additives or inhibitors that are not specific for use in heating systems and compatible with the materials of the boiler/heat pump and plant.
Only use conditioners, additives, inhibitors and antifreeze liquids declared by the producer suitable for use in heating systems and that do not cause damage to the heat exchanger or other components and/or materials of the boiler and plant. Chemical conditioners must ensure complete deoxygenation of the water, contain specific protection for yellow metals (copper and its alloys), anti-fouling agents for scale, neutral pH stabilizers and, in low- temperature systems, specific biocides for use in heating systems.
Recommended chemical conditioners: SENTINEL X100 and SENTINEL X200 FERNOX F1 and FERNOX F3
7.6.2 Water filter It is mandatory to install at the inlet of the unit the Y-shape water filter (supplied with the unit).
NOTE
The presence of deposits on the indoor unit exchange surfaces due to non- compliance with the above requirements will involve non-recognition of the warranty.

Cod. 3541Z090 – Rev. 06 – 02/2023

EN

29

IDOLA S 3.2
7.6.3 Tips for a successful installation For a correct design and installation of the hydraulic plant comply the local laws governing safety matters and sound. The following information is suggestion for a correct installation of the unit.
· Before connecting the unit to the plant wash adequately the pipes using clean water, filling and emptying and cleaning the filters. · Only after that proceed connecting the unit to the plant; this operation is crucial to ensure proper start-up without the need to have repeated stops to clean the
filter, with the possible risk of damage to heat exchangers and other components. · Check by qualified personnel the quality of the water or of the mixture used; avoid the presence of inorganic salts, biological load (seaweeds, etc.) suspended
solids, dissolved oxygen and the pH. Water with inadequate characteristics can cause a pressure drop increase due to a rapid fouling of the filter, energy efficiency decrease and corrosive symptom increase that can damage the unit. · The pipes must have the least possible number of bends to minimize load losses and must be adequately supported in order to prevent the connections of the unit from being excessively stressed. · Install on-off valves near components that need to be serviced to isolate them when maintenance work needs to be done and to allow them to be replaced without having to discharge the plant. · Before isolating the pipes and charging the system, carry out preliminary inspections to make sure that there are no leaks. · Isolate all the chilled water pipes to prevent condensation from forming along the pipes themselves. Make sure that the material used is the steam barrier type, failing this, cover the insulation with an appropriate protection. Also make sure that the air venting valves can be accessed through the insulation. · The circuit can be maintained under pressure using an expansion vessel (present in the unit) and a pressure reducer. A system filling device can be used that automatically, under a pressure value, provides for the loading and maintenance of the desired pressure. · Check that all plant components are able to withstand the maximum static pressure (depending on the height of the building to be served).
NOTE
If there is no glycol in the system (antifreeze) or if the unit is not able to remain electrically powered for possible blackouts, in order to avoid possible icing problems, empty the water during winter.
The unit is only to be used in a closed water plant. Application in an open water circuit can lead to excessive corrosion of the water pipes.
Water connections must be made in accordance with the outlook diagram delivered with the unit, with respect to the water intake and water outlet.
If air, moisture or dust gets in the water circuit, problems may occur. Therefore, always take into account the following when connecting the water circuit.
Use clean pipes only.
Hold the pipe end downwards when removing burrs
Cover the pipe end when inserting it through a wall so that no dust and dirt enter.
Use a good thread sealant for sealing the connections. The sealing must be able to withstand the pressures and temperatures of the plant.
When using non-brass metallic piping,make sure to insulate both materials from each other to prevent galvanic corrosion. Never use Zn-coated parts in the water circuit. Excessive corrosion of these parts may occur as copper piping is used in the unit’s internal water circuit.
7.6.4 Filling with water 1. Connect the water supply to the fill valve and open the valve. 2. Make sure the automatic air purge valve is open (at least 2 turns). 3. Fill with water until the manometer indicates a pressure of approximately 2.0 bar. Remove air in the circuit as much as possible using the air purge valves. Air present in the water circuit might cause malfunctioning of the backup heater.
NOTE
During filling, it might not be possible to remove all air in the system. Remaining air will be removed through the automatic air purge valves during the first operating hours of the system. Topping up the water afterwards might be required. The water pressure indicated on the manometer will vary depending on the water temperature (higher pressure at higher water temperature). However, at all times water pressure should remain above 0.3 bar to avoid air entering the circuit.
The unit is only to be used in a closed water plant. Application in an open water circuit can lead to excessive corrosion of the water pipes.
Never use Zn-coated parts in the water circuit. Excessive corrosion of these parts may occur as copper piping is used in the unit’s internal water circuit.
When using a 3-way valve or a 2-way valve in the water circuit. The recommended maximum changeover time of the valve should be less than 60 seconds.
7.6.5 Water circuit anti-freeze protection All internal hydronic parts are insulated to reduce heat loss. Insulation must also be added to the field piping. The software contains special functions using the heat pump and backup heater to protect the entire system against freezing. When the temperature of the water flow in the system drops to a certain value, the unit will heat the water, either using the heat pump, the electric heating tap, or the backup heater. The freeze protection function will turn off only when the temperature increases to a certain value. In event of a power failure, the above features would not protect the unit from freezing.

30

EN

Cod. 3541Z090 – Rev. 06 – 02/2023

IDOLA S 3.2

CAUTION
When the unit is not in use for a long period, make sure that the unit is always switched on. If you want to disconnect the power supply, the water in the indoor unit must be drained to prevent damage to the pump and pipes from freezing temperatures. · The unit might drain-off too much water through the pressure relief valve. · Water quality should be complied with EN 98/83 EC Directives. · Detailed water quality condition can be found in EN 98/83 EC Directives.
7.6.6 Water piping insulation The complete water circuit including all piping, water piping must be insulated to prevent condensation during cooling operation and reduction of the heating and cooling capacity as well as prevention of freezing of the outside water piping during winter. The insulation material should at least of B1 fire resistance rating and complies with all applicable legislation. The thickness of the sealing materials must be at least 13 mm with thermal conductivity 0.039 W/mK in order to prevent freezing on the outside water piping. If the outdoor ambient temperature is higher than 30°C and the humidity is higher than RH 80%, then the thickness of the sealing materials should be at least 20 mm in order to avoid condensation on the surface of the seal.
7.7 Electrical connections

7.7.1 Electrical data Table. 5 – Electrical data
Indoor unit Power absorbed Maximum input current Automatic switch Power cable section

MOD. ” A A
mm2

The customer must install the automatic circuit breaker.

Communication cable between indoor and outdoor unit Cable section (shielded cable)

MOD. mm2

Example of basic connections for a single phase system
230V-1-50Hz

10 220-240V 50 Hz
13 16 3×1.5
10

16 220-240V 50 Hz
13 16 3×1.5

16T 380-415 3+N+PE 50 Hz
10 16 5×1,5

16

16T

3×0.75

230V-1-50Hz

CB
NN

INDOOR INDOUONRITUNIT
P Q E

OUOTUDTODOOORRUUNNIITT
P Q E

CB
NN

WARNING
A main switch or other means of disconnection, having a contact separation in all poles, must be incorporated in the fixed wiring in accordance with relevant local laws and regulations.
Switch off the power supply before making any connections.
Use only copper wires. Never squeeze bundled cables and make sure they do not come in contact with the piping and sharp edges. Make sure no external pressure is applied to the terminal connections.
All field wiring and components must be installed by a licensed electrician and must comply with relevant local laws and regulations.
The field wiring must be carried out in accordance with the wiring diagram supplied with the unit and the instructions given below. Be sure to use a dedicated power supply. Never use a power supply shared by another appliance. Be sure to establish a ground. Do not ground the unit to a utility pipe, surge protector, or telephone ground. Incomplete grounding may cause electrical shocks.
Be sure to install a ground fault circuit interrupter (30 mA). Failure to do so may cause electrical shock.
Be sure to install the required fuses or circuit breakers.

WARNING

Cod. 3541Z090 – Rev. 06 – 02/2023

EN

31

IDOLA S 3.2
Cut off all power supply– i.e. unit power supply and backup heater and domestic hot water tank power supply (if applicable) — before removing front panel. Parts inside the unit may be hot.
NOTE
The ground fault circuit interrupter must be a high- speed type breaker of 30 mA (<0.1 s). This unit is equipped with an inverter. Installing a phase advancing capacitor not only will reduce the power factor improvement effect, but also may cause abnormal heating of the capacitor due to high-frequency waves. Never install a phase advancing capacitor as it could lead to an accident.
WARNING
Before any operation which requires removing the cover, disconnect the indoor unit from the power supply through the main switch.
HAZARD
Do not touch the electrical components in any case with the closed main switch! There is the risk of electric shock with risk of injury or death! The appliance must be connected to an effective earthing system, as provided for by the current safety regulations. Have the efficiency and suitability of the earthing system checked by professionally qualified personnel, the manufacturer is not responsible for any damage caused by lack of earthing of the system. The indoor unit is pre-wired and has a three-pole and two-pole cable, with no plug, for the connection to the electricity power line. The grid connections must be permanent and fitted with a switch (2 poles or 4 poles) with a minimum contact opening of at least 3 mm, placing an automatic switch (refer to “Table. 5 – Electrical data” on page 31) between the indoor unit and the line. For single-phase units (mod. 10 and 16) Make sure to respect the polarities (LINE: brown wire / NEUTRAL: blue wire / GROUND: yellow-green wire) in the connections to the electric line. For three-phase units (mod. 16T) Make sure to respect the polarities (L1-L2-L3 – N – PE) in the connections to the electric line.
HAZARD The unit’s supply cable MUST NOT BE REPLACED BY THE USER. If the cable gets damaged, turn the unit off and have the cable replaced only by professionally qualified personnel. In case of replacement, only use cable “HAR H05 VV-F” 3×0.1.5 mm2 (mod. 10 and 16) or 5×1,5 mm2 (mod. 16T) with a max external diameter of 11mm.

32

EN

Cod. 3541Z090 – Rev. 06 – 02/2023

IDOLA S 3.2
7.7.2 How to access to the electric box 1. To dismount the front panel of the indoor unit:
· Partially unscrew the screws A (see “fig. 14 – removing the front panel”). · Pull the panel B out and release it from the upper fixings (see “fig. 14 – removing the front panel”). 2. Make the connections referring to the functional electrical diagram present in this manual. 3. Proceed in reverse order to reassemble the front panel. Make sure that it is correctly attached to the upper fixing and completely resting on the side panels. The head of the screw “A”, once tightened, must be positioned as indicated in “fig. 15 – assembly with bottom screws”).

fig. 14 – removing the front panel

OK

NO

fig. 15 – assembly with bottom screws

E
P Q E A B E

2a
2b 2

4 3

1A 1
fig. 16 – view without front panel

fig. 17 – view without front panel

fig. 18 – how to release the electric box

fig. 19 – how to turn the electric box

To access the terminals of the indoor unit: · loosen the two screws (detail 1 – fig. 16) under the electric box · loosen the top screws (detail 2a – fig. 17) · grip the box and release it (fig. 18) · turn it forwards (fig. 19) remove the metal sheet of the rear cover (detail 3 – fig. 19) secured with 2 screws (detail 4 – fig. 19).
NB: The rear fastening bracket can be removed (detail 2 – fig. 17) by removing the screw (detail 2b – fig. 17).
Legend: A Display panel and keyboard (fig. 16) B Electronic hydronic board (fig. 20) C Thermal cut-off switch for single-phase electric resistance with manual reset button (detail C1 fig. 20) D Thermal cut-off switch for three- phase electric resistance with manual reset button (detail D1 fig. 20)
7.7.3 User terminal block connections The terminal block (detail B fig. 16) is located on the left side of the boiler electric box. The terminal block is a male-female connector strip. There is an identification label of the 6 terminals available on the side of the terminal block.
7.7.4 Connection of system add-ons The unit can manage system add-ons, such as an external circulation pump / zone 1 water pump, zone 2 water pump, 3-way mixer valve for zone 2, 3-way diverter valve for not/cold mode and smart grid. All these elements are controlled by the hydronic board.

B

C C1 D1
D
fig. 20 – Internal view of electrical cabinet

ID TERMINAL
P Q AND A B
AND

FUNCTION

NOTES

For serial connecSerial Modbus tion to the outdoor
unit

Serial Modbus

For connection to the external monitoring system (BMS) or remote
control

Cod. 3541Z090 – Rev. 06 – 02/2023

EN

33

7.7.5 Hydronic board

IDOLA S 3.2

&1

&1 &1

&1

&1

&1

&1

&1 ‘,6

&1 &1 6 6

&1

&1 &1

&1

&1

&1

&1

6 6

&1

&1

&1

&1

&1

&1

&1 &1

1 2 3 4 5 6 7 8 9 10 11 12 SL1 SL2 H C 1ON 1OFF 2ON 2OFF P_c P_o P_s P_d

25 26 27 28 HT R2 AHS1 AHS2

1 2345 A B X Y E

13 14 15 16 17 18 19 20 21 22 23 24 TBH IBH1 L1 N N N 3O N 3OFF N N N N

29 30 31 32

6 7 8 9 10

N R1 DFT2 DFT1 P Q E H1 H2

CN11

CN7

CN30

fig. 22 – Hydronic board

Ref. Port

Code

1 CN21

POWER

2 S3

/

3 DIS1

/

4 CN5

GND

5 CN28

PUMP

6 CN25

DEBUG

7 S1, S2, S4 /

8 CN4

USB

9 CN8

FS

T2 *

T2B *

10 CN6

TW_in *

TW_out *

T1 *

11 CN24

Tbt1

12 CN16

Tbt2

13 CN13

T5

14 CN15

Tw2

15 CN18

Tsolar **

16 CN17

PUMP_BP

HT

17 CN31

COM

CL

18 CN35

SG EVU

19 CN36

M1 M2 T1 T2

20 CN19

P Q

21 CN14

A B X Y E

Description
Power supply to the hydronic board Rotary dip switch
Digital display
From ground to hydronic board
Pi indoor water pump power supply Port for IC programming Dip switch
Port for USB programming Connection to the indoor water flow switch
Port for temperature probe on liquid refrigerant side of the indoor unit (heating mode) Port for temperature probe on gas refrigerant side of the indoor unit (heating mode) Port for temperature probe of inlet water of plate exchanger Port for temperature probe of outlet water of plate exchanger Port for final temperature probe of outlet water from indoor unit Port for water temperature probe in system tank Reserved
Port for temperature probe in DHW heater Port for water temperature probe sent to zone 2 Port for solar panel temp. sensor PWM signal to Pi indoor unit water pump Control port for room thermostat (heating mode) Power supply port for room thermostat Control port for room thermostat (cooling mode) Port for smart grid (mains signal) Port for smart grid (photovoltaic signal) Reserved
Reserved
Reserved
Communication port with display panel

NOTE B / / B B / / / / B B B B B A / A A A B 1 1 1 1 1 / / / B

34

EN

Cod. 3541Z090 – Rev. 06 – 02/2023

IDOLA S 3.2

Ref. Port

22

CN30

23

CN7

24

CN11

25 CN2 26 CN1
27 CN22
28 CN41 29 CN40 30 CN42 31 CN29

Code

1

A

2

B

3

X

4

Y

5 AND

6

P

7

Q

8 AND

9

H1

10 H2 26 R2

30 R1

31 DFT2

32 DFT1

25 HT

29

N

27 AHS1 28 AHS2 1 SL1

2 SL2

3

H

4

C

15 L1

5 1ON

6 1OFF

16

N

7 2ON

8 2OFF

17

N

9 P_c

21

N

10 P_o

22

N

11 P_s

23

N

12 P_d

24

N

13 TBH

16

N

14 IBH1

17

N

18

N

19 3ON

20 3OFF

TBH_FB IBH1/2_FB

IBH1

IBH2 TBH HEAT8 HEAT7

HEAT6

HEAT5

Reserved

Description

3 wires for connection with outdoor unit
Reserved Compressor operation (the contact is closed when the compressor is operating) Defrost run (the contact is closed when the defrost is enabled) Reserved Gas boiler (the contact is closed when the gas boiler is requested) Reserved
Room thermostat inlet (high voltage)
SV1 (3-way diverter valve) system / DHW
SV2 (3-way valve) heat/cool
Zone 2 pump External circulation pump / zone 1 pump Solar panel pump DHW recirculation pump DHW electric boiler heating element Indoor back-up system electric heater 1
SV3 mixer valve (3-way valve zone 2) Port for automatic circulation TBH switch (in short-circuit by default) Port for automatic circulation IBH switch (in short-circuit by default) Control port for indoor back-up system electric heater 1 Reserved Control port for electric resistance DHW boiler Reserved Reserved Reserved Reserved

NOTES:
A: With accessory Temperature Probe. All these temp. probes can be used or not as a function of the type of the plant served by the unit. B: Internal connections, it means that these terminals are used for the management of the indoor unit. 1: Dry contact without voltage. 2: Port provide 220-240VAC voltage. If the current of load is <0.2A, load can connect to the port directly. If the current of load is >=0.2A, the AC contactor is required to supply for the load.

Current

220-240VAC

Maximum working current (A)

0.2

Cable section (mm2)

0.75

NOTE
/
/
/ 1 1 2 1 /
2
B
2
2 2 2 2 2 B
2 / / / / / / / / /

Cod. 3541Z090 – Rev. 06 – 02/2023

EN

35

IDOLA S 3.2
Connect the cable to the appropriate terminals as shown in the following pictures. Fix the cable reliably and provide to pass the cable through the appropriate cable gland (refer to “DIMENSIONAL AND PHYSICAL DATA” on page 21.

P_o – For outdoor circulation pump or water pump zone 1

P_s – Water pump of the solar circuit

10 22
CN11

25 26 27 28 29 30 31 32
CN7

1 2345 6 7 8 9 10 CN30

CN11

11 21

25 26 27 28 29 30 31 32 CN7

1 2345 6 7 8 9 10 CN30

Power supply A1 A2

P_c – Water pump of zone 2

fig. 23 –

CN11

9 21

25 26 27 28 29 30 31 32 CN7

1 2345 6 7 8 9 10 CN30

Power supply A1 A2

Pumpsolar

fig. 26 –

SV2 – 3-way diverter valve for heat/cool

78 17 CN11

25 26 27 28 29 30 31 32 CN7

1 2345 6 7 8 9 10 CN30

Power supply A1 A2
Pumpc(zone2 pump)
fig. 24 P_d – DHW recirculation pump

CN11

12 24

25 26 27 28 29 30 31 32 CN7

1 2345 6 7 8 9 10 CN30

SV2
fig. 27 –

Terminals

Mode

7 (2ON)

8 (2OFF)

Heat

230V

0V

Cool

0V

230V

SV3 – 3-way mixing valve for zone 2

CN11

18 19 20

25 26 27 28 29 30 31 32 CN7

1 2345 6 7 8 9 10 CN30

Power supply A1 A2
P-d
DHW pipe pump
fig. 25 –

36

EN

SV3
Cod. 3541Z090 – Rev. 06 – 02/2023

fig. 28 –

IDOLA S 3.2
TBH – Electrical heater for DHW boiler

13

16

CN11

25 26 27 28 29 30 31 32 CN7

1 2345 6 7 8 9 10 CN30

· Room thermostat method B (one zone control)
To activate this function set the service parameter 6.1 “Room thermostat” = 2 (one zone) refer to “9.2 Service parameters table” on page 51. B.1 When unit detect voltage is 230VAC between H and L1, unit turns on. B.2 When unit detect voltage is 0VAC between H and L1, unit turns off.

Power supply

3 15
CN11

25 26 27 28 29 30 31 32 CN7

1 2345 6 7 8 9 10 CN30

A1 A2

TCO ATCO

(TBH)
fig. 29 –

H-L1-C – For room thermostat (high voltage)

HEAT(H)

L1

Method B

One zone control

POWER

RT1

IN

fig. 31 –

There are three methods for connecting the thermostat.

· Room thermostat method C (double zone control)

To activate this function set the service parameter 6.1 “Room thermostat” = 3 (dou-

· Room thermostat method A (mode set control)
To activate this function set the service parameter 6.1 “Room thermostat” = 1 (mode setting) refer to “9.2 Service parameters table” on page 51. A.1 When unit detect voltage is 230VAC between C and L1 ,the unit operates in the cooling mode.
A.2 When unit detect voltage is 230VAC between H and L1, the unit operates in the heating mode.
A.3 When unit detect voltage is 0VAC for both side(C-L1, H-L1) the unit stop work-

ble zone) refer to “9.2 Service parameters table” on page 51. C.1 With 230VAC voltage between H and L1, zone1 turns on. With the voltage 0VAC between H and L1, zone2 turns off. C.2 When the voltage is 230VAC between C and L1, zone2 turns on according to climate temp curve. With 0VAC voltage between C and L1, zone2 turns off. C.3 With 0VAC voltage for both sides (C-L1, H-L1), the unit turns off. C.4 With 230VAC voltage for both sides (C-L1, H-L1), both zone1 and zone2 turn on.

ing for space heating or cooling.

A.4 When unit detect voltage is 230VAC for both side(C-L1, H-L1) the unit working

in cooling mode.

34

25 26 27 28 1 2 3 4 5

15

29 30 31 32 6 7 8 9 10

CN11

CN7

CN30

34

25 26 27 28 1 2 3 4 5

S1

15

29 30 31 32 6 7 8 9 10

CN11

CN7

CN30

CN4

3 HEAT(H)

15 4 L1 COOL(C)

Method A Mode set control

POWER

RT1

IN

fig. 30 –

HEAT(H)

Method C

L1

COOL(C) Double zone control

RT1 zone1

POWER IN

RT2 zone2
fig. 32 –

POWER IN

Cod. 3541Z090 – Rev. 06 – 02/2023

EN

37

IDOLA S 3.2

HT-COM-CL – Room thermostat (Low voltage)

· Room thermostat method C (double zone control)

To activate this function set the service parameter 6.1 “Room thermostat” = 3 (dou-

There are three methods for connecting the thermostat.

ble zone) refer to “9.2 Service parameters table” on page 51.

· Room thermostat method A (mode set control)

C.1 With 12VDC voltage between HT and COM, zone1 turns on. With 0VDC volt-

To activate this function set the service parameter 6.1 “Room thermostat” = 1 age between HT and COM, zone1 turns off.

(mode setting) refer to “9.2 Service parameters table” on page 51.

C.2 With 12VDC voltage between CL and COM, zone2 turns. When 0VDC voltage

A.1 When unit detect voltage is 12VDC between CL and COM ,the unit operates between CL and COM, zone2 turn off.

in the cooling mode.

C.3 With 0VDC voltage for both sides (HT-COM and CL-COM), the unit turns off.

A.2 When unit detect voltage is 12VDC between HT and COM, the unit operates C.4 With 12VDC voltage for both sides (HT-COM and CL-COM), both zone1 and

in the heating mode.

zone2 turn on.

A.3 When unit detect voltage is 0VDC for both side(CL-COM, HT-COM) the unit

stop working for space heating or cooling.

DIS1 CN31
CN41

CL COM HT

A.4 When unit detect voltage is 12VDC for both side(CL-COM, HT-COM) the unit CN22
working in cooling mode.

S3 S4 CN4

EVU SG

CN35

CN1 CN36

CN40

S1 S2

DIS1

CN31

CN41

CL COM HT

S3 S4

CN22

CN4 CN35

CN2

CN17

CN14 CN19

1 2 3 4 5 6 7 8 9 10 11 12 25 26 27 28

4 53 2 1

13 14 15 16 17 18 19 20 21 22 23 24 29 30 31 32 6 7 8 9 10

EVU SG

CN1

CN11

CN7

CN30

CN36

CN2

CN17

CN14 CN19

1 2 3 4 5 6 7 8 9 10 11 12

25 26 27 28

4 53 2 1

13 14 15 16 17 18 19 20 21 22 23 24 29 30 31 32 6 7 8 9 10

CN11

CN7

CN30

HEAT(HT)

COM

COOL(CL)

Method A Mode set control

HEAT(HT) COM

COOL(CL)

POWER

RT1

IN

Method C Double zone control
POWER IN RT1
zone1
fig. 35 –

RT2 zone2

POWER IN

fig. 33 –

NOTE

· Room thermostat method B (one zone control)

To activate this function set the service parameter 6.1 “Room thermostat” = 2 (one The wiring of the thermostat should correspond to the settings of the user

zone) refer to “9.2 Service parameters table” on page 51.

interface.

B.1 When unit detect voltage is 12VDC between HT and COM, unit turns on. B.2 When unit detect voltage is 0VDC between HT and COM, unit turns off.

Power supply of machine and room thermostat must be connected to the same Neutral Line .

CN40

S1 S2

DIS1

CN31

CN41

CL COM HT

S3 S4

CN22

CN4 CN35

EVU SG

CN1 CN36

CN2

CN17

CN14 CN19

1 2 3 4 5 6 7 8 9 10 11 12 25 26 27 28

4 53 2 1

13 14 15 16 17 18 19 20 21 22 23 24 29 30 31 32 6 7 8 9 10

CN11

CN7

CN30

Zone 2 can only operate in heating mode, When cooling mode is set on user interface and zone1 is OFF,”CL” in zone2 closes, system still keeps `OFF’. While installation, the wiring of thermostats for zone1 and zone2 must be correct.

HEAT(HT)

COM

Method B One zone control
RT1
fig. 34 –

POWER IN

38

EN

Cod. 3541Z090 – Rev. 06 – 02/2023

IDOLA S 3.2
AHS1, AHS2 – For additional heat source control (GAS BOILER)

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 1617 18 19 20 2122 23 24
CN11

27 28 CN7

1 2345 6 7 8 9 10 CN30

FUSE L
Power supply

7 5 3 1 A1

KM6

A2 N 24 68

Additional heat source

fig. 36 –

NOTE
If you only want to use photovoltaic input, jumper SG If you only want to use smart grid input, jumper EVU

CN29 CN42
CN40 CN41
CN22

CN25 DIS1 S3 S4

S1 S2 CN4

CL COM HT

CN15 CN18
CN31 CN35

EVU SG

CN1 CN36

CN2

CN17

1 2 3 4 5 6 7 8 9 10 11 12

25 26 27 28

5

13 14 15 16 17 18 19 20 21 22 23 24 29 30 31 32 6 7 8 9 10

CN11

CN7

CN30

CN14 CN19

EVU-SG Digital inputs for photovoltaic input and smart grid from mains electricity
If the digital inputs for photovoltaic input and smart grid from mains electricity are enabled by parameter 15.2 (see “9.1.1 Access to Service menu (For Serviceman)” on page 50) and are active. They take priority over the user interface settings.

SMART GRID
fig. 37 –

Digital inputs not enabled (default) Set par. 15.2 = 0

Digital inputs enabled Set par. 15.2 = 1

EVU (photovoltaic input) Closed Closed Open Open

SG (smart grid input) Open Closed Closed Open

Operating status
Photovoltaic operation Photovoltaic operation Normal operation Smart grid operation

Additional temperature probes To control the additional system temperature probes, additional temperature probes may be necessary (available as an accessory). The probes are connected to the heat pump hydronic board (see “7.7.5 Hydronic board” on page 34). Refer to the instructions supplied with the accessory for the installation. For the setting parameters, see “9.1.1 Access to Service menu (For Serviceman)” on page 50.
Tbt1 probe (system water tank temperature probe) Set par.15.4=1

Tw2 probe (mixed water temperature probe sent to zone 2)

· Photovoltaic operation

Set par.15.3=1

The DHW heater setpoint is set to 70°C to accumulate the electrical energy pro-

duced by the photovoltaic panels.

Tsolar probe (thermal solar panel temperature probe)

To meet this DHW request tat 70°C, the heat pump and DHW (TBH) electrical Set par.15.7=1

water heater are used.

If the heat pump is working for the system, continue to do so and only the DHW

electric boiler heater (TBH) is used.to meet the DHW request. If the heat pump is

not working for the system, it is activated together with the electric DHW heater

(TBH) to meet the DHW request.

· Normal operation In this case, the system works normally according to the set parameters

· Smart grid operation
This operation is usually dependent of a smart grid request by the mains electricity
which basically informs the system that the deliverable electric power is decreas-
ing (for example, in the case of electricity production systems through wind or photovoltaic farms). The heat pump is not longer available to heat the DHW heater and can work for the system in cooling or heating mode for a specific time (set via a parameter), so is disabled.

Cod. 3541Z090 – Rev. 06 – 02/2023

EN

39

8. USER INTERFACE
The user interface consists of 7 keys and a display with dot matrix technology.
8.1 Key function description

IDOLA S 3.2

The control system

SW1

SW3

SW6

SW4

SW2

SW7

SW5

ID key SW1 SW2 SW3 SW4 SW5
SW6
SW7

Key function description

Function UP DOWN MENU/CONFIRM BACK OFF
UP VALUE
DOWN VALUE

Function details
On MAIN, select/scroll up/down between DHW – SYSTEM or DHW – SYS. Z1 -SYS. Z2 if zone 2 is enabled Scroll up/down the menu rows in the menu
Access to the main menu and confirm parameter value if changed
Return to previous screen
Switch off -short press ­ switches of DHW or Z1 or Z2 depending on the selection – pressure >5 sec. switches off everything (DHW-Z1-Z2) – Increases DHW-Z1-Z2 set temperature – Increases the parameter value selected in the menu
– Decreases DHW-Z1-Z2 set temperature – Decreases the parameter value selected in the menu

fig. 38 –
8.3 Meaning of display icons

1

2

3 4

8

5

6

7

11

10

9

12
17 20
13 16

14

15

19 18

Index

Icon

Description

Function

1

Water circulator

Enabled when the pump is active

2

compressor

Enabled when the compressor is active

3

Additional heating source (boiler) Enabled when the boiler is active

System electric heater

Enabled when the electric heater is active

4

External temperature

Allows you to view the external air temperature.

Additional NOTE

40

EN

Cod. 3541Z090 – Rev. 06 – 02/2023

IDOLA S 3.2

Index 5

Icon

Description

timer

Function Enabled when one of the timer functions is active –

Additional NOTE

6

Eco function

Enabled when the ECO function is active

It can be activated 24h or based on scheduled event.

7

Photovoltaic FV

Enabled when FV dig-in=closed

They only appear of the smart grid function is enabled. The

SG smart grid Maximum energy consumption

Enabled when SG dig-in=closed Appears when EVU and SG dig-in = both open.

icons appear based on the status of the dig-in. Hydronic board EVU and SG.

8

Anti-freeze

Defrost

Silent mode

Enabled when the anti-freeze is in progress Enabled when the defrost is in progress Enabled when the silent mode is in progress

Shared position on the display. They appear based on the active function. Priority index In the event of simultaneous request 1 anti-freeze 2 defrost 3 silent mode

9

DHW symbol

DHW mode

if crossed out = disabled

10

Antilegionella

Antilegionella in progress

11

Solar panels

Enabled when the thermal solar panel is operating Shared position on the display.

They appear depending on the active function.

DHW electric boiler heater

Enabled when the DHW electric boiler heater is They cannot be run at the same time.

operating.

12

DHW Temp. – DHW set point Displays the DHW heater probe temperature (if Displays the DHW setp. during modification.

present)

If DHW=off, OFF appears instead of the temperature.

13

Heating symbol

Cooling symbol

Heating mode active Cooling mode active

Shared position on the display. They appear depending on the active function.

14

Holiday mode

Holiday period active

15

– Delivery set point

– Delivery set point single zone – without Z1-Z2 on If it is configured as single zone only Z1/Z2 will not be on

– Delivery set point zone 1

the side.

the side.

– Delivery set point zone 2

– Delivery set point zone 1 if Z1 on the side

If it is configured as dual zone, either Z1 or Z2 will always

– Delivery set point zone 2 if Z2 on the side

be on the side to indicate which zone the value displayed

refers to.

If single zone, either z1 or z2=off, OFF appears

16
17-1819 20

Zone 1 indicator

Appears when the zone control is enabled and is Indicates that the zone 1 set point is displayed.

always displayed next to the set point (15)

Not present if double zone is not enabled.

Selection indicator between Indicates the selected set point for change DHW-Z1-Z2 to change set point

When a set point appears on the side, it means that it can be changed. You can move using the SW1-SW2 buttons

Zone 2 indicator

Appears when the zone control is enabled and is Indicates that the zone 2 set point is displayed.

always displayed next to the set point (15)

Not present if double zone is not enabled.

8.5 Switching ON and OFF DHW and plant
Switching on or off (ON / OFF) is done with the SW5 key. When a mode is turned off, OFF appears in place of the current display. When a mode is turned on, the current display appears. There are two possibilities of switching on / off: for single function and general. Single function power off / on: – Select DHW and with 1sec pressure on OFF, only DHW switches off/on – Select single zone and with 1sec pressure on OFF, only DHW switches off/on – Select Z1 and with 1sec pressure on OFF, only Z1 switches off/on – Select Z2 and with 1sec pressure on OFF, only Z2 switches off/on General shut-down:
The prolonged pressure of the SW5 key, for more than 3 sec, activates or deactivates the forced OFF state. In this state, all requests are disabled, while the protection functions remain active (antifreeze, disinfection-anti- legionella, …)

Cod. 3541Z090 – Rev. 06 – 02/2023

fig. 39 –

EN

41

8.6 HEAT, COOL and DHW setpoint settings
DHW set point (min 30°C, max 60°C) To change the DHW set point, proceed as follows: · press the SW1/SW2 buttons to select the set point · press the SW6/SW7 buttons to change the set point · confirm the modified value with the SW3 button

IDOLA S 3.2

SW1

SW3

SW6

Single zone set point Type of terminal selected FLH (radiant floor) FCU (fancoil) / RAD (radiator)

Heat setpoint (min:max) 25: 55 25: 65

Cool setpoint (min:max) 18: 25 5: 25

(Cooling min 5°C, max 25°C – Heating min 25°C, max 65°C)

To change the single zone set point, proceed as follows: · press the SW1/SW2 buttons to select the set point · press the SW6/SW7 buttons to change the set point · confirm the modified value with the SW3 button

SW4

SW2 SW5

SW7
Zone Z1 set point

Type of terminal selected

Heat setpoint (min:max)

References

• FERROLI - Caldaie, condizionatori ed energie alternative
• LAMBORGHINI CALOR - Caldaie, condizionatori ed energie alternative

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