MAXA i-290 0106 Chillers and Inverter Air Water Heat Pumps Instruction Manual

June 15, 2024
MAXA

i-290 0106 Chillers and Inverter Air Water Heat Pumps

Product Information

Specifications

  • Model: i-290 0106, i-290 0109, i-290 0112, i-290 0115, i-290
    0118

  • Framework: Twin rotary hermetic inverter controlled DC
    compressors

  • Compressors: Designed to operate with R290, equipped with
    thermal protection and mounted on rubber vibration dampers

  • Air Side Heat Exchanger: [Description not provided]

  • Utility Side Heat Exchanger: Brazed plate type, made of
    stainless steel AISI 304, insulated with closed cell material

  • EC Fan: Axial type with airfoil blades made of plastic,
    brushless modulating motors with integrated thermal protection

  • Cooling Circuit: [Description not provided]

Product Usage Instructions

1. Framework

The product is equipped with twin rotary hermetic inverter
controlled DC compressors. These compressors are designed to
operate with R290 and are mounted on rubber vibration dampers for
reduced noise. They are also equipped with thermal protection and a
crankcase heater to prevent oil dilution and galling. The
compressors can be inspected and serviced even while the unit is
running by removing the side and front panels.

2. Heat Exchangers

The product has two types of heat exchangers:

  • Air Side Heat Exchanger: [Description not provided]
  • Utility Side Heat Exchanger: The utility heat exchangers are
    brazed plate type, made of stainless steel AISI 304. They are
    insulated with closed cell material and can be equipped with an
    optional anti-freeze electric heater (KA accessory). Each
    evaporator is protected by a temperature sensor used as an
    antifreeze protective probe which activates the circulator, even
    when the machine is switched off, if the conditions imposed on the
    control occur.

3. EC Fan

The product is equipped with plastic axial fans with airfoil
blades. These fans are statically and dynamically balanced and are
supplied complete with a protective grid. The electric motors used
are brushless modulating motors to optimize the
evaporation/condensation pressure in summer/winter operation. They
are directly coupled and equipped with integrated thermal
protection with an IP54 rating.

4. Cooling Circuit

[Description not provided]

FAQ

Q: What type of heat exchanger is used in the product?

A: The product uses brazed plate heat exchangers made of
stainless steel AISI 304.

Q: Can the compressors be serviced while the unit is

running?

A: Yes, the compressors can be inspected and serviced even while
the unit is running by removing the side and front panels.

R290
Chillers and Inverter Air/Water heat pumps with axial fans
Technical Bulletin
Models
i-290 0106 i-290 0109 i-290 0112 i-290 0115 i-290 0118
This manual has been created for informative purpose. The company declines any responsibility for the results of any projecting or any installation based on the explanations and/or on the technical specifications provided in this manual. It is besides forbidden the reproduction under any form of the texts of the figures contained in this manual. This manual is a translation from the official italian language version. For reasons of environmental respect the Company will not provide the hard copy in the original language which could be directly requested or downloaded from the Company website at any time. In case of any dispute, the original languate manual will be the trusted one. Even partial reproduction PROHIBITED © Copyright – Advantix SpA
www.maxa.it

i-290 Inverter air/water heat pumps with axial fans
2

i-290 Inverter air/water heat pumps with axial fans

00

01-2019

EG

AR

Rev

Date Author Supervisor

Catalogo / Catalogue / Katalog / Catalogue

BTE02050120000

First issue Notes
Serie / Series / Serie / Serie / Série INVERTER AIR/WATER HEAT PUMPS WITH AXIAL FANS
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i-290 Inverter air/water heat pumps with axial fans
Contents
1.DESCRIPTION OF UNIT AND TECHNICAL SPECIFICATIONS ……………………………….. 6 1.1FRAMEWORK ………………………………………………………………………………………………. 6 1.2COMPRESSORS ……………………………………………………………………………………………. 6 1.3AIR SIDE HEAT EXCHANGER ………………………………………………………………………….. 6 1.4UTILITY SIDE HEAT EXCHANGER……………………………………………………………………. 6 1.5EC FAN ………………………………………………………………………………………………………… 6 1.6COOLING CIRCUIT………………………………………………………………………………………… 6 1.7ELETTRIC PANEL…………………………………………………………………………………………… 8 1.8CONTROL SYSTEM ……………………………………………………………………………………….. 8 1.9CONTROL AND0 PROTECTIVE DEVICES………………………………………………………….. 8 1.10WATER CIRCUIT………………………………………………………………………………………….. 8 2.DESCRIPTION OF VERSIONS AND ACCESSORIES………………………………………………. 8 2.1VERSIONS ……………………………………………………………………………………………………. 8 2.2LIST OF ACCESSORIES…………………………………………………………………………………… 9 2.3DESCRIPTION OF ACCESSORIES…………………………………………………………………… 10 2.3.1Component supplied as standard………………………………………………………………… 10 2.3.2Factory-fitted accessories…………………………………………………………………………… 10 2.3.3Accessories supplied separately………………………………………………………………….. 11 2.4SAFETY RULES FOR R290 UNITS TRANSPORT AND STORAGE ………………………… 12 3.INSTALLATION ……………………………………………………………………………………………… 12 3.1GENERAL …………………………………………………………………………………………………… 12 3.2TRANSPORT AND STORAGE TEMPERATURE LIMITS ……………………………………… 14 3.3LIFTING AND HANDLING…………………………………………………………………………….. 14 3.3.1Lifting mode …………………………………………………………………………………………….. 14 3.4UNIT DIMENSIONS, PLUMBING CONNECTIONS AND WEIGHTS ……………………. 15 3.4.1Net dimensions and with packaging…………………………………………………………….. 15 3.4.2Models i-290 0106 / 0109 ………………………………………………………………………….. 15 3.4.3Models i-290 0112 / 0115 / 0118………………………………………………………………… 16 3.4.4Weights …………………………………………………………………………………………………… 16 3.5POSITIONING AND MINIMUM TECHNICAL CLEARANCES……………………………… 16 3.6DANGER AND SAFETY ZONES ……………………………………………………………………… 18 3.6.1Free-field ground installation ……………………………………………………………………… 19 3.6.2Ground installation in front of a wall……………………………………………………………. 19 3.6.3Ground installation in a corner……………………………………………………………………. 20 3.6.4Flat roof installation ………………………………………………………………………………….. 21 3.6.5Multiple installation ………………………………………………………………………………….. 21 3.7PLUMBING CONNECTIONS …………………………………………………………………………. 21 3.7.1Characteristics of the circuit water………………………………………………………………. 22 3.7.2Typical plumbing diagram ………………………………………………………………………….. 22 3.7.3Plumbing diagram inside unit……………………………………………………………………… 23 3.7.4Condensation drain system ………………………………………………………………………… 24 3.7.5System load ……………………………………………………………………………………………… 24 3.7.6System discharge………………………………………………………………………………………. 25 4.GENERAL TECHNICAL DATA ………………………………………………………………………….. 26
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i-290 Inverter air/water heat pumps with axial fans
4.1STANDARD UNIT DATA TABLE ……………………………………………………………………… 26 4.2ELECTRICAL AND AUXILIARY DATA………………………………………………………………. 28 5.CORRECTION FACTORS…………………………………………………………………………………. 29 5.1CORRECTION FACTORS FOR USE OF GLYCOL WATER MIXTURE……………………… 29 5.2SCALING CORRECTION FACTORS…………………………………………………………………. 29 5.3INSTRUMENTATION CALIBRATIONS AND PROTECTIONS ………………………………. 29 5.4CORRECTION FACTORS ACCORDING TO ALTITUDE ………………………………………. 29 6.HYDRONIC UNIT DATA………………………………………………………………………………….. 30 6.1USEFUL HEADS…………………………………………………………………………………………… 30 6.2CHARACTERISTIC CURVES OF CIRCULATORS ……………………………………………….. 30 7.SOUND EMISSIONS ACCORDING TO EN 12102-1:2022 ……………………………………. 31 8.OPERATING LMITS ……………………………………………………………………………………….. 32 8.1EVAPORATOR WATER FLOW ……………………………………………………………………….. 32 8.2COLD WATER PRODUCTION (SUMMER MODE) ……………………………………………. 32 8.3HOT WATER PRODUCTION (WINTER MODE)………………………………………………… 32 8.4AMBIENT AIR TEMPERATURE AND SUMMARY TABLE ………………………………….. 33 8.5ENVELOPE IN HEATING AND COOLING………………………………………………………… 33 8.6ENVELOPE IN DHW …………………………………………………………………………………….. 34 9.PERFORMANCE TABLES………………………………………………………………………………… 35 9.1HEATING STANDARD UNIT VERSION……………………………………………………………. 35 9.2COOLING …………………………………………………………………………………………………… 37 9.3SANITARY…………………………………………………………………………………………………… 38 10.DATA FOR THE ENERGY CERTIFICATION OF BUILDINGS ACCORDING TO UNI/TS 11300-4 FOR HEAT PUMPS ………………………………………………………………………………….. 39 10.1EER DATA TO CALCULATE THE ENERGY PERFORMANCE OF BUILDINGS, ACCORDING TO UNI/TS 11300-3 ………………………………………………………………………………………. 42 11.REFRIGERANT SAFETY DATA SHEET …………………………………………………………….. 48
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i-290 Inverter air/water heat pumps with axial fans
1. DESCRIPTION OF UNIT AND TECHNICAL SPECIFICATIONS
The i-290 heat pumps were designed for residential and commercial applications. They are extremely versatile and prepared for heat pump operation with hot water production for ambient heating and for sanitary use at a temperature of 75°C. The refrigerant employed is R290 gas, which, thanks to its low GWP, ensures a long term solution in terms of efficiency and environmental sustainability. Use of the INVERTER-controlled brushless compressor technology, coupled with electronic expansion valve, circulator pump and variable speed fan ensures excellent performance, due to the optimisation of the specifics consumption and the high modulating capacity, which in turn translate into high COP and EER values.
1.1FRAMEWORK
All the units of the range are produced in hot galvanised sheet metal painted with polyurethane powders in kiln at 180°C to assure the best resistance to weathering. The frame is self-supporting with removable panels for easier inspection and maintenance of the inner components. All screws and rivets for outdoor installation are in galvanised steel.
1.2COMPRESSORS
Twin rotary hermetic inverter controlled DC compressors, are designed to operate with R290, equipped with thermal protection and mounted on rubber vibration dampers. The compressors are installed in a compartment separated from the air flow to reduce noise. They are also equipped with crankcase heater to prevent oil dilution and consequently galling. The compressors can be inspected by removing the side and front panels of the unit, so that they can be serviced even with the units running.
1.3AIR SIDE HEAT EXCHANGER
The air heat exchangers are made of copper pipes and prepainted aluminium fins. The pipes are mechanically expanded into aluminium fins to increase the thermal exchange factor. The shape of these exchangers allows a low air side pressure drops and therefore fans can run at low speed (thus reducing unit noise). As optional the coils can be supplied with a “SILVER LINE” to allow greater resistance to acidity and salt spray resulting in increased hydrophilic ability and performance compared to a battery with simple aluminium fins. The air side exchangers are designed to minimise the refrigerant gas charge.
1.4UTILITY SIDE HEAT EXCHANGER
The utility heat exchangers are the brazed plate type, made of stainless steel AISI 304, insulated at the factory with closed cell material. They can be equipped with anti-freeze electric heater (optional KA accessory). Each evaporator is protected by a temperature sensor used as an antifreeze protective probe which activates the circulator, even when the machine is switched off, if the conditions imposed on the control occur.
1.5EC FAN
The fans are made of plastic, the axial type with airfoil blades. They are all statically and dynamically balanced and are supplied complete with protective grid. All electric motors used are brushless modulating to optimise the evaporation/condensation pressure in summer/winter operation so as to allow the correct operation of the machine. The motors are directly coupled and equipped with integrated thermal protection with IP54 rating.
1.6COOLING CIRCUIT
The cooling circuit is made with components of leading international companies and in compliance with UNI EN standard 13134 on brazing procedures. The coolant is the new R290 (GWP equal to 3) ecological gas. The basic version of the cooling circuit includes: 4-way cycle reversing valve, electronic expansion valve, liquid separator integrated with the compressor, liquid receiver (only for i-290 0112, 0115, and 0118 units), safety device (high- pressure switch), pressure transducers to carefully measure evaporation and condensing pressure, bidirectional metal mesh filters to avoid obstructions on the lamination valve. The suction pipe is thermally insulated thanks to a closed cell elastometric foam. A pressure test is performed to detect any potential leakage and the unit is supplied already charged with the optimal amount of gas for proper functioning.
6

RS RD RL

i-290 Inverter air/water heat pumps with axial fans

Circuit diagram i-290 0106, 0109

RS
PSH 1

SV RD/RS YISV1

TE

MAF

EXT1

CO RL

TRH

1

F

TE DT1

INVC
HC

TE SD1

TRL

1

KAS

EEV F

RS RS W-OUT W-IN RL

RS SV
RD RL

SV

RS/RD

EV

RL

RV

TE

OUT1

DV

AV P

TE

FM

IN1

Circuit diagram i-290 0112, 0115, 0118

RS
PSH 1

RD/RS YISV1

MAF2

TE

MAF1

EXT1

CO RL

TRH 1
TE DT1

INVC
HC

TE SD1
TRL 1
SV

KAS

F EEV
F

RS/RD

SV EV

RV

TE

OUT1

DV

AV P

TE

FM

IN1

RL LR

7

RS RS W-OUT W-IN RL

i-290 Inverter air/water heat pumps with axial fans

ACRONYM
INVC CO EV EEV YISV LR F SV HC MAF RS KAS

DESCRIPTION
VARIABLE SPEED COMPRESSOR COIL
PLATE HEAT EXCHANGER ELECTRONIC EXPANSION VALVE 4-WAY CYCLE REVERSING VALVE
LIQUID RECEIVER FILTER
FILLING CONNECTION CRANKCASE HEATER
AXIAL FAN SUCTION LINE PLATE EXCHANGER ANTIFREEZE HEATER

ACRONYM RD RL
RD/RS RS/RD W-OUT
W-IN TRH TRL TE EXT TE SD TE DT PSH

DESCRIPTION
DISCHARGE LINE LIQUID LINE
DISCHARGE/SUCTION LINE SUCTION/DISCHARGE LINE SYSTEM WATER OUTLET LINE SYSTEM WATER INLET LINE HIGH PRESSURE TRANSDUCER LOW PRESSURE TRANSDUCER OUTDOOR AIR TEMPERATURE PROBE INTAKE LINE TEMPERATURE PROBE COMPRESSOR DISCHARGE TEMPERATURE PROBE HIGH PRESSURE SWITCH

1.7ELETTRIC PANEL
The electric panel is designed in compliance with current European standards. The electric panel can be accessed by removing the cover on the unit using a specific tool. The electric panel has an IPX4 protection rating. The panel is also supplied with an auxiliary board for electrical connections and utilities. The auxiliary board has digital inputs with voltage-free contact for:
· Remote ON-OFF. · Summer/winter mode. · Double set-point control. There are also analogue inputs for: · Domestic hot water sensor. · Storage sensor. Below listed the digital inputs (max. voltage available for input: 0,5 A) · Machine stall alarm. · 3-way valve for Domestic Hot Water control. · Double set-point control. The system is pre-fitted with connectivity arrangement for ModBus RTU RS-485 monitoring and 12 VAC supply i-CR wall-mounted controller.
1.8CONTROL SYSTEM
All i-290 units are equipped with microprocessor with overheating control logic by means of an electronic thermostatic valve managed according to the signals sent by the pressure transducers. The CPU also controls the following functions: water temperature control, antifreeze protection, compressor timing, alarm reset, alarm management and operating LEDs. The control system, with the INVERTER technology and on board sensors, monitors and continuously adapts the performance of the inverter compressor, of the circulator and of the fan (2 fans in models 0112, 0115 and 0118).
1.9CONTROL AND PROTECTIVE DEVICES
All the units are standard supplied with the following control and protective devices: return water temperature sensor, installed on water return pipe from the system, working and antifreeze probe installed on the water discharge pipe to the system, high pressure transducer, low pressure transducer, temperature probes on both the compressor’s suction and discharge lines, compressor thermal protection, fan thermal protection, water side flowmeter protecting the evaporator, high pressure switch.
1.10WATER CIRCUIT
i-290 chillers are supplied with a built-in water circuit which includes: modulating circulator with high-efficiency brushless motor (EEI0,21), suitable for the use of chilled water and managed directly by the machine’s controller, plate heat exchanger, flowmeter, safety valve (3 bar) bound to a discharge system and a deaerator supplied with air vent valve.

2. DESCRIPTION OF VERSIONS AND ACCESSORIES
2.1VERSIONS
i-290 – reversible heat pump with built-in hydronic unit (safety valve, modulating circulator, flowmeter, filling/drain valve). Available models: 0106, 0109, 0112, 0115 and 0118. Sizes 0106, 0109, 0112 provide a single-phase power supply, while sizes 0115, 0118 require a three-phase power supply. The unit code consists of the following elements:
· 7 fixed digits. · the symbol # as separator. · 8 variable digits (fields) identifying the sizes, power supply and factory mounted accessories. · 2 variable digits (MC field) which identify the i-290 series in any customisations.
0112422#(VR)(AE)(CT1)(KA)(CR)(TR)(RP)(AC1)(MC)

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i-290 Inverter air/water heat pumps with axial fans

ORDER CODE 0110419#

UNIT VERSION

VR

2

Standard

3 Standard with GI

6

SL version

7 SL version + GI

POWER SUPPLY

AE

0

Single-phase

1

Three-phase

THERMAL CAPACITY CT1

22 04 kW (*) (***)

16 06 kW (*) (***)

17

08 kW (*)

18 10 kW (*) (***)

19

12 kW (*)

20 14 kW (***)

21

16 kW

23 18 kW (**) (***)

ANTIFREEZE KIT

REMOTE CONTOL

ACCESSORY 1

KA

CR

AC1

0

Without antifreeze kit

0

No one

1 With antifreeze kit 2 Modbus protocol

0

T

No one Coil treatment

(*) Variants not valid for AE=1 (**) Variants not valid for AE=0
CAUTION: The antifreeze kit is a factory mounted accessory. It is not possible to install it later.

2.2LIST OF ACCESSORIES
The available accessories for the i-290 heat pumps are listed below.

Vibration damper kit Antifreeze kit
Antifreeze kit (basament only) Coils anticorrosion treatment
Coils protection grids Condensate drip tray
Y-filter Filling /drain valve Water side safety valve VDIS2 – Diverter valve (1″1/4) Kvs 19.2 Electronic throttling valve Antifreeze thermal drain valve SAS – Domestic hot water probe / System remote probe SPS – Solar panel probe for GI3 Flowmeter (flow presence signal) Hi-T2 – Multifunctional touch screen remote control i-CR – Wall remote controller GI3 – External system management module

Accessory x x x x x x x
x
x x x
x
x

Standard
x x x x x

Factory-fitted x x x x
x x x
x x

Supplied separately x
x x
x x x x x x

9

i-290 Inverter air/water heat pumps with axial fans

FD – Dirt separator Unit lifting belts Deaerator
Electronic circulator Remote on/off voltage-free contact BMS connectivity arrangement – ModBus protocol included (CM) Editing the dynamic set-point – climate curve (via external air probe
fitted in the unit) Voltage-free contact for Summer/Winter selection
Machine block signal Enabling maximum Hz () Enabling minimum Hz () Digital input for double set-point *

Accessory x x
x

Standard
x x x
x x x x x x

Factory-fitted
x x x
x x

Supplied separately x x x
x x x x

(*) Functions can be enabled as an alternative.
2.3DESCRIPTION OF ACCESSORIES 2.3.1Component supplied as standard
Electronic circulator – standard on the unit, electronically controlled and high efficiency. Flowmeter (flow presence signal) ­ this device monitors and signals water circulation in the plate heat exchanger. This component is essential because it switches off and secures the unit preventing the formation of ice.
Electronic throttling valve ­ expansion valve, designed for the control and continuous regulation of the amount of refrigerant entering the evaporator. To optimise consumption, changes in thermal load can be monitored quickly.
Water side safety valve – valve installed on the hydraulic circuit to control overpressure – setting 3 bar.
Filling / drain valve – there is always a service valve in the unit that is used to fill/discharge the amount of water in the system or adjust the glycol percentage.
Deaerator – component to continuously capture and expel air and any other gases dissolved in the water in the hydraulic circuit. The removal efficiency of this device is very high, allowing the elimination of non-condensable gases present in the circuits down to microbubble level.
Unit lifting belts – belts required for the correct handling of the unit.
i-CR – Wall remote controller – Modbus remote control with negative LCD and capacitive keys. The device is to be used as a remote keyboard machine with local temperature detection, replicating the functionality of the on-board control. Remote on/off voltage-free contact ­ contact on the auxiliary board which allows the unit to be switched on and off.
Changing the dynamic set-point – climatic curve (via external air probe in the unit) – the controller allows the set-point to be changed by adding a value depending on the temperature of the outside air probe. Voltage-free contact for Summer/Winter selection ­ option of remotely controlling the heating or cooling mode of the heat pump. Macaticvhaitneed b(clooncktascitganfatlelirn- sgal-ecsosnetrrvoicl es)y:stem signalling of locked unit (can be reset manually). Alternatively, one of the following functions can be
· Alarm signalling; · Defrosting signalling; · Compressor running signalling; · Season signalling; · System integration resistor management; · Sanitary integration resistor management; uEnnaitbwlinillgrmediuncime uthme Hpzow- Weritchonthsuemacpttiivoantiboyn aopfpthroisxifmunactetiloyn1(0w%hiocfhtmheusntobmeindaolnreeffeorlelonwceinvgatlhuee,prreoscueltdinugreindeascreridbuecdtiionnthineccaopnatcriotyl .mAalnteuranla) ttihvee function at maximum Hz. Enabling maximum Hz – With the activation of this function (which must be enabled by the after-sales service) the unit will increase the capacity by approximately 10% over the reference nominal value, resulting in an increase in power consumption. Alternative function at minimum Hz. Digital input for double set-point – input to change the set point.
2.3.2Factory-fitted accessories

Antifreeze kit – It involves the use of a self-heating cable that is fixed to the base of the unit in the vicinity of the condensation coil and a PET resistance placed on the face of the plate heat exchanger.
Antifreeze kit (basement only) – This only involves the use of a self-heating cable that is applied to the base of the unit near the condensation coil.
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i-290 Inverter air/water heat pumps with axial fans
Coil anticorrosion treatment – With the treatment the coil becomes flexible to withstand contractions and thermal expansions, it is mechanically resistant, UV-protected and dirt repellent. Heat transmission losses are very low. The treatment ensures coil protection in all environmental conditions: from marine to rural settings, from industrial to urban areas.
BMS connectivity arrangement – ModBus protocol included (CM) – accessory to connect the unit to external controllers via serial cable with RS-485 electric standard and ModBus RTU protocol. Battery protection grids – wire mesh to prevent the intrusion of foreign bodies inside the battery and to protect the battery from accidental contact with things or people (can also be ordered as a separate accessory).
2.3.3Accessories supplied separately
Vibration damper kit ­ they prevent transmitting vibrations to the structure; they must be fitted into the appropriate holes underneath the unit. GI3 – External plant management module – allows management of the following functions:
· Recirculation circulator management. · System-side mixing valve management. · Solar thermal integration management. VDIS2 – Diverter valve (1″1/4) VDIS2 – DN motorised 3-way ball valve (1″1/4) Kvs 19,2, connections FFF 1″ ½ FFF G complete with servo-control.
76 62

197

POSITION 1

102 POSITION 2

Stem detail, position 1

Stem detail, position 2

POSITION 1 = OPEN B-A POSITION 2 = OPEN B-AB

Permitted substances: water from -15°C to +110°C (below 0°C only for water with antifreeze additive). Not suitable for group 1 and 2 gas, group 1 liquids (Directive 2014/68/EU) Characteristics of servocontrol without spring return:
· Force [Nm]: 16 · Stroke time: 60 s · Power supply 230 Vac · IP rating: 65
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i-290 Inverter air/water heat pumps with axial fans
· Valve body specifications: · Frame: PN 40 Antifreeze thermal drain valve ­ valve able to open at 0°C to prevent the formation of ice inside the pipes. Condensate drip tray – galvanised sheet metal container to be installed at the base of the unit for collecting condensate water from the unit. Y-filter – contains a stainless steel mesh sieve (500 m filtration) that collects solids in the water. Filtration prevents clogging and/or damage to devices installed downstream of the filter. Alternatively, it is possible to install a dirt separator which guarantees a filtration degree of no more than 1 mm (in this case, it is no longer necessary to install the Y-filter). PSP – Solar panel pobe for GI3 – probe required to measure the temperature of the solar panels if the unit is integrated with a solar thermal system. FD – Dirt separator – blocks and retains the heaviest impurities in the hydraulic circuit, which are captured by a synthetic filtering grid and collected in a settling chamber. A magnetic device placed inside the body of the dirt separator also allows ferromagnetic particles to be intercepted. SAS – Domestic hot water probe / System remote probe ­ In some system solutions (e.g. heat pump in parallel to boiler on same hydronic circuit and shut off diverter valve) it might be necessary to enable a system temperature probe so that the machine controller can correctly process the control. The system remote probe controls the temperature of the heat pump only during the compressor start-up phase. Shutdown is managed by the probe on the heat pump delivery line. Hi-T2 – Multi-purpose touch screen remote control ­ touch screen remote control for centralised management of a chiller/heat pump network. It includes humidity and temperature sensors for the thermal hygrometric analysis of the environment and for the management of the double set point for radiant floor heating systems that use a dehumidification system.
2.4SAFETY RULES FOR R290 UNITS TRANSPORT AND STORAGE
Before opening the unit’s packaging, ensure there are no gas leaks in the ambient with an appropriate gas detector. Check that there are no ignition sources near the unit. No smoking near the unit. Transport and storage must be performed in accordance with the national regulations in force. Specifically, according to ADR provisions, the total maximum quantity by transport unit in terms of net mass for flammable gases is 333 kg. In addition, for road transport, use vehicles that are preferably open or equipped with a ventilation system and operated by trained personnel. For prerequisites on the transport by sea of equipment loaded with flammable refrigerant refer to the International Maritime Dangerous Goods Code (IMDG), and for transport by air check the regulations prescribed by the International Air Transport Organisation (IATA). If it is necessary to store the unit for medium to long periods, please observe the following precautions:
· if storage is in a closed location, leave the machine in a dedicated place that is always dry, cool, well ventilated and protected from possible ignition sources, direct sunlight or other heat sources. It is also recommended to use one flammable gas detection sensor every 36-40 m2. Please refer to national regulations;
· if storage is carried out in an open area, observe the minimum safety distances from drains, cisterns, sewers and other underground areas, in compliance with the national regulations in force;
· do not remove covers and packaging; · ensure that all panels are correctly mounted; · do not obstruct the openings and holes made in the machine panels; · avoid cleaning the unit with aggressive detergents or chemicals; · it is advisable to remove any heating water inside the unit to prevent possible corrosion or, in cold climates, damage to components caused
by freezing.
CAUTION: During transport and storage of the unit, beware of possible refrigerant gas leaks that could start a fire.
3. INSTALLATION
CAUTION: All the operation described below must be done by QUALIFIED PERSONNEL only (IEC 60335-2-40 Annex HH). Before any operation on the unit, make sure that power supply is disconnected. Also ensure, by means of appropriate locks, that the power supply cannot be accidentally switched on again until all operations have been completed.
3.1GENERAL
When installing or working on the refrigeration circuit, it is necessary to comply with the regulations in this manual, observe the instructions on the unit and in any case apply all necessary precautions. Failure of this may lead to dangerous situations.
After receiving the unit, immediately check its integrity. The unit left the factory in perfect condition; any damage must be immediately reported to the carrier and recorded on the Delivery Note before signing it.
The company must be informed, within 8 days, of the extent of the damage. The customer should prepare a written statement of any severe damage.
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i-290 Inverter air/water heat pumps with axial fans
The units are designed to be installed outdoors. Under no circumstances should the outdoor ambient temperature exceed 46°C when the unit is not in operation. Above this value, the unit is no longer covered by current pressure equipment safety regulations. The installation place must be without any fire risks. All necessary measures must therefore be taken to prevent the risk of fire at the installation site (see Chapter 5.5 for more details). The device must not be placed in the vicinity of open flames, ignition sources or heat sources. The wall of the buildings near the unit must have an adequate fire resistance class, in order to contain any fire that may develop inside the rooms. However, it is recommended to place a fire extinguisher near the unit. The unit must be installed in order to allow maintenance and repair. The warranty does not cover costs for platforms or other lifting equipment needed for any interventions. All the maintenance operations and tests must be done by QUALIFIED PERSONNEL (IEC 60335-2-40 Annex HH). All equipment used during maintenance operations must be compatible with the refrigerant gas R290. Before any operation on the unit, make sure that the power supply is disconnected and cannot be switched on again accidentally. After disconnecting the power supply from the unit, wait at least 5 minutes before performing any operation on the machine to allow the condenser to discharge. Do not use equipment to speed up the defrost process or for cleaning except for those recommended by the manufacturer. The appliance must be placed outside, in a place without continuously operating ignition sources (e.g. open flames, an operating gas appliance or electric heater). Refer to Chapter 5.5. Cable ducts and electrical conduits to the machine must not contain potential ignition sources.
Do not perforate or burn. Do not make mechanical modifications to the unit. There are some moving parts inside the unit. Use extreme caution when working near them, even if the power supply is disconnected. In particular, pay attention to the fan blades when removing the front protective grilles. Do not touch or insert any objects into the moving parts. The compressor heads and discharge pipework are at quite high temperatures. The pipes on the suction side of the compressor, can reach very low temperatures. Uninsulated pipes can cause burns or freezer burns: only handle these components when their temperature is close to ambient. Be particularly careful when working near batteries. Aluminium fins are very sharp and can cause serious injury.
After the maintenance operations, close the panels by fixing them with screws.
After maintenance or replacement of components, reconnect the cables in the same position as in the factory. Routine maintenance operations can be carried out with the machine charged, while in the case of extraordinary operations, repairs or replacement of components and heavy work in the vicinity of the machine (e.g. construction sites), drain the machine of coolant gas and move it to a safe area if necessary (in accordance with Chapter 5.5). Insulating materials are not self-extinguishing: remove them when working on the unit, if necessary. Do not remove, replace or make illegible the adhesive labels on the unit and packaging. Do not cover the labels after installation of the unit.
13

i-290 Inverter air/water heat pumps with axial fans

3.2TRANSPORT AND STORAGE TEMPERATURE LIMITS
Minimum storage temperature [°C] Maximum storage temperature [°C]

-10°C +50°C

3.3LIFTING AND HANDLING
Handling must be carried out by qualified personnel, properly equipped and with equipment suitable for the weight and size of the unit, in compliance with current accident prevention regulations. It is recommended: 1.check the weight on unit technical label or on table of technical data; 2.check that when moving the unit there are no disconnected paths, ramps, steps, doors that could affect the movement and damage the
unit; 3.check that the unit remains horizontal when moving; 4.during handling, do not carry out abrupt and sudden manoeuvres in order to not destabilise the unit; 5.before handling the unit, check that the equipment is suitable for lifting and preserving the integrity of the unit; 6.perform lifting only by one of the listed procedures; 7.before starting handling make sure that the unit is in stable equilibrium. Note that the weight of the unit is concentrated more on the side of the refrigeration circuit: take into consideration the weight distribution of the machine when transporting it manually with ropes, in order not to lift excessive loads and avoid damage or personal injury. It is recommended to remove the packaging only after the machine has been placed in the actual installation location. Dispose of the different packaging materials in accordance with national regulations.

Before commissioning, carefully inspect the unit and packaging for damage or refrigerant leakage.
Do not proceed with the start-up of the unit if damage was found during transport. Immediately inform the Company of the problem. The company is not liable for any damage to the product caused by handling and transporting the unit in a manner not in compliance with this manual and the regulations in force.
3.3.1Lifting mode
Following lifting modes are allowed: · forklift truck; · ropes / bands.
Make sure to tension the lifting ropes gradually and check their correct positioning.

Lifting with forklift truck.

14

i-290 Inverter air/water heat pumps with axial fans

Lifting with ropes / bands.

3.4UNIT DIMENSIONS, PLUMBING CONNECTIONS AND WEIGHTS 3.4.1Net dimensions and with packaging

Model i-290

Lenght [mm]

0106 / 0109

1105

0112 / 0115 / 0118

1105

Widht [mm] 490 490

Height [mm] 869

Plumbing connections IN/OUT

Dimensions with packaging (length x width x height) [mm]

1″ G

1195 x 580 x 920

1442

1″ G

1195 x 580 x 1485

3.4.2Models i-290 0106 / 0109
IN/OUT: 1″ G E: power supply input

1105

232

E
IN OUT
70 77

E

869

458

32

490

1105

490

74

512

474

185

735

185

15

3.4.3Models i-290 0112 / 0115 / 0118
IN/OUT: 1″ G E: power supply input

E

E

i-290 Inverter air/water heat pumps with axial fans
1105

232 74 474
1442 512

IN OUT

70

77

32___

__458

490

490

IIIIIII

_185__

735

_1_85____

3.4.4Weights

Model i-290 0106 0109 0112 0115 0118

Shipping weight [kg] 121 121 175 175 175

Operating weight [kg] 109 109 164 164 164

3.5POSITIONING AND MINIMUM TECHNICAL CLEARANCES
All models of i-290 are designed and constructed for outdoor installations. The company is not liable for any damage to property, animals and/ or persons resulting from failure to comply with the instructions on installing the unit described in this manual. It is advisable to create an adequately sized support base for the unit. The units transmit a small amount of vibrations to the ground: however, it is advisable to place anti-vibration mounts between the base frame and the supporting surface. It is preferable to install the unit away from places sensitive to noise and vibration (e.g. windows and glass panes). Always make an environmental impact assessment based on the power and sound pressure data in chapter “TECHNICAL DATA” and the sound emission limits according to the installation area of the unit, with reference to the DPCM of 14/11/1997. An assessment must also be made if the unit is installed near workers, according to D. LGS. 81/2008 Art. 189 and following. To reduce vibrations and noise, the use of rubber seals is recommended for wall installation.

In case of hanging installation, it is necessary to make sure that the wall has been made with solid bricks, concrete or similar. The wall capacity needs to be enough to support al least four times the weight of the unit. The maximum installation height is 800 mm.

The support plane must have enough capacity to support the unit weight, which can be checked both on the technical label of the unit and on this technical manual under “Technical data” chapter. The support plane must not be inclined to ensure the unit works properly and avoid a possible overturning. The support plane must not be smooth, to avoid water/ice deposit as potential sources of danger.

16

i-290 Inverter air/water heat pumps with axial fans
Unit installation place must be free from foliage, dust, etc., which could clog or cover the coil. Installation in areas subject to water stagnation or fall, for example from gutters, should be avoided. Also, avoid areas subject to snow accumulation (such as corners of buildings with sloping roofs). In case of installation in areas subject to snowfall, it is advisable to place the unit on a base raised from the ground by 20-30 cm, to prevent the formation of snow accumulations around the machine, which can obstruct the battery and the perforations on the side panels and base of the machine. It is recommended that sufficient air exchange be ensured to dilute R290 gas in the event of its accidental escape, thus preventing the formation of explosive atmospheres. For this reason, a minimum distance (depending on the unit) must be maintained from any openings or manholes, in which the gas could accumulate. Respect national regulations for the installation of the machine. The units are suitable for installation in urban, industrial, coastal and rural areas. If the unit is installed in an environment with aggressive atmospheres, the air sucked in by the fan may contain substances that can cause damage to the panels, grilles and internal components of the unit. In this case, the operating life of the unit will be limited.
Avoid installing the unit under covers of any kind, such as roofs, canopies and similar.

It is prohibited to install the unit in a location below ground level (such as cellars, underground car parks, basement or underground work rooms, etc.).

It is very important to avoid recirculation between intake and delivery air, so as not to downgrade performance of the unit or even to interrupt its normal operation. This is why the minimum clearances shown below must be strictly guaranteed.

MODEL i-290

A

B

C

D

i-290 0106 mm 1500 500 400 400

i-290 0109 mm 1500 500 400 400

i-290 0112 mm 1500 500 400 400

i-290 0115 mm 1500 500 400 400

i-290 0118 mm 1500 500 400 400

Obstruction or covering of ventilation openings on the top cover must be avoided. For strong wind installation place refer to the classification of the area according to the Beaufort table. If the value is > 7 (strong wind, average wind speed = 13, 9-17, 1 m/s) it is strictly necessary to keep the fan always powered, thus preventing involuntary rotation of the same. If the unit is installed at a distance of less than 1 km from coastal and maritime areas, the presence of salt and sand in the air greatly increases the likelihood of corrosion. Install the unit so that it is protected from direct sea wind if necessary, provide windbreaks on site (observing the minimum distances indicated).

In the event of side-by-side units, the minimum Lmin dsitance between them is 1 m

17

i-290 Inverter air/water heat pumps with axial fans
Covering with canopies or placing near plants or walls should be avoided to prevent air recirculation.
In the event of winds stronger than 2.2 m/s the use of wind barriers is recommended.
3.6DANGER AND SAFETY ZONES
The i-32V5 series units contain R290 refrigerant gas. The density of this gas is greater than that of air, so in the event of leakage it tends to disperse and stratify, accumulating in niches, depressions in the ground or underground regions. It is mandatory to comply with the danger and safety zones given in this manual, when installing the units. These zones have been designed in accordance with EN 60079-10-1, estimating an appropriate refrigerant loss, in order to guarantee the safety of the units in the installation area. A danger zone is defined as a area around the machine in which, in the event of a leakage of refrigerant gas, a flammable atmosphere is formed for a short time, within which it is necessary to implement all the precautions described in the manual. In the absence of specific standards or regulations, when using the unit in an industrial or working environment, it is advisable to carry out the classification of places with explosion hazards considering the ATEX Directive 1999/92 (Directive 89/391). There must NOT be any sources of ignition in the danger zones, including:
· flammable gases and sprays, self-igniting powders; · electrical equipment that is not suitable for use in potentially explosive areas (zone 2 according to Directive 89/391); · naked flames, heated surfaces (maximum surface temperature of 360°C) and processing by heat; smoking is prohibited, including for elec-
tronic cigarettes; · sparks, electrostatic charges, direct and indirect lightning effects, eddy currents and cathodic protection; · ignition sources due to remote processes (ionising and non-ionising radiation); · permanent electrical sources (switches, lamps, etc.) or other possible triggers; In addition, danger zone must NOT: · include potentially dangerous areas or elements such as wells, manholes, openings to the sewage system and other openings to under-
ground places and premises (e.g. garages), river drains, power lines, flammable deposits, electrical installations, etc.; · include doors, windows or glass panes, to prevent the possible return of the gas inside the building; · extending towards neighbouring residential properties, parking areas, public access sites, roads or railways. A safety zone extending beyond the danger zone must also be identified. Within the safety zone, in the event of a refrigerant leak, the concentration of the gas in the air is typically below the critical levels for the formation of flammable or hazardous atmospheres. Compliance with the following provisions remains mandatory: · prevent accumulation and stagnation in underground spaces, drains, manholes, cellars, etc.; · do not place building vents inside or near the safety zone; · do not use naked flames and other direct heat sources. In any case, comply with national and local regulations for the installation of machinery (where applicable) in order to prevent the formation of fire hazards and to prevent gases from seeping underground into openings to the ground or floors below. No structural modifications may be made in the danger and safety zones that would alter their extent or change the behaviour of the air-coolant mixture. It is also strictly forbidden to tamper with, alter, remove or compromise, even partially, the functionality of the devices, guards and prescriptions provided for the safety of property and persons. In this manual, different types of outdoor installation are considered, as indicated in the following paragraphs.
18

i-290 Inverter air/water heat pumps with axial fans

3.6.1Free-field ground installation

For unit installed in open field terrain, the danger (continuos red line) and safety zones (dashed black line) are shown in the figures below:

d

d

d

d

L1

L3

L2

L4

MODEL i-290

X

Y

L1

L2

L3

L4

d

0106 / 0109

mm 1000 1500 3105 4105 2490 3490 250

0112 / 0115 / 0118 mm 1500 2000 4105 5105 3490 4490 250

3.6.2Ground installation in front of a wall
In the case of units installed on the ground in front of a wall, the danger (continuous red line) and safety zones (dashed black line) are shown in the figures below:

19

i-290 Inverter air/water heat pumps with axial fans

MODEL i-290

X

Y

L1

L2

D

d

0106 / 0109 mm 1000 1500 3105 4105 400 250

0112 / 0115 / 0118 mm 1500 2000 4105 5105 400 250

3.6.3Ground installation in a corner
For units installed on ground in a corner, the danger (continuous red line) and safety zones (dashed black line) are shown in the figures below:

C

d

d

B

D

X1 D
Y1

C X
Y

B X
Y

X1

Y1

MODEL i-290

X

Y

X1

Y1

B

C

D

d

0106 / 0109

mm 1000 1500 2000 2500 500 400 400 250

0112 / 0115 / 0118 mm 1500 2000 2750 3250 500 400 400 250

3.6.4Flat roof installation
The installation configuration on a flat roof is similar to that on a free- field ground, although some additional aspects must be considered: · place the machine at a sufficient distance from side walls and protrusions, which must therefore be beyond the safety zone; · ensure that the roof structure of the building is solid; · choose a location where no accumulations of snow, dust or foliage can form; · pay attention to noise emissions and maintain an adequate distance from surrounding buildings;
20

i-290 Inverter air/water heat pumps with axial fans
· if high air velocities are detected, install the protections listed in the previous chapter.
3.6.5Multiple installation
When installing several machines side by side, follow the above configurations, maintaining a respect distance of L between each machine. As an example, see the following respect zones (danger and safety) for the case of a generic number “n” of units installed on open field terrain:

MODEL i-290

X

Y

L

0106 / 0109

mm 1000 1500 1000

0112 / 0115 / 0118 mm 1500 2000 1000

For other types of installation not covered in this manual, contact technical support. If in doubt about the installation of the units, request a technical assessment by the fire brigade or a fire prevention expert.
3.7PLUMBING CONNECTIONS
The plumbing connections must be made in accordance with national and/or local regulations; pipes can be made of steel, galvanised steel, multilayer steel or PVC. Pipes must be accurately sized according to the maximum water flow rate of the unit and the pressure drops of the water circuit. All pipes must be insulated with closed-cell material of adequate thickness. The chiller must be connected to the pipes using new flexible joints, not reused ones. The water circuit should include the following components.
· Well thermometers to monitor the circuit’s temperature. · Manual gate valves to isolate the chiller from the water circuit. · Metal Y filter or a dirt separator (installed on the return pipe) with metal mesh no larger than 1 mm. · Loading group and exhaust valve where necessary.
When sizing the pipes, make sure not to exceed the maximum pressure drop on system side reported in the technical data table in Chapter 12 (see useful head). Connect the pipes to their fittings always using the key-to-key method. Create a suitable drain for the safety valve. CAUTION: The installer has to verify if the expansion tank fits with the real capacity of the installation. CAUTION: The return pipe from the system must be at the “WATER INPUT” label otherwise the evaporator may freeze. CAUTION: It is mandatory to install a metal filter (with mesh no larger than 1 mm) on the return pipe from the system labelled “WATER INLET”. Alternatively, it is possible to install a dirt separator that guarantees a filtration degree of no more than 1 mm; in this case is not necessary to install the Y-filter. If the flowmeter is tampered with or altered, or if the metal filter or the dirt separator are not present on the system, the warranty shall expire. The filter (or the dirt separator) must be kept clean, therefore, after installing the unit, you must make sure that they are still clean and check them regularly. CAUTION: All the units leave the company supplied with flowmeter (installed in factory). If the flowmeter is altered or removed or if the water filter and dirt separator are missing from the unit, the guarantee shall expire. Refer to the wiring diagram attached to the unit to connect the flowmeter. Never jumper connections of the flowmeter in the terminal block. The heating system and the safety valves must comply with the requirements of standard EN 12828.

3.7.1Characteristics of the circuit water

To guaratee correct operation of the unit, the water must be appropriately filtered (see the instructions at the start of this paragraph) and there must be only a minimum amount of dissolved substances. The maximum allowed values are shown below:

MAXIMUM CHEMICAL-PHYSICAL PROPERTIES ALLOWED FOR THE CIRCUIT WATER

PH

7,5 – 9

Electrical conductivity

100 – 500 S/cm

Total hardness

4,5 ­ 8,5 dH

21

i-290 Inverter air/water heat pumps with axial fans

MAXIMUM CHEMICAL-PHYSICAL PROPERTIES ALLOWED FOR THE CIRCUIT WATER

Temperature Oxygen content

65°C 0,1 ppm

Max glycol quantity (*)

10 %

Phosphates (PO ) 4
Manganese (Mn)

2 ppm < 0,05 ppm

Iron (Fe)

< 0,3 ppm

Alkalinity (HCO ) 3
Chloride ions (Cl-)

70 ­ 300 ppm < 50 ppm

Sulphate ions (SO ) 4 Sulphide ions (S)

< 50 ppm No one

Ammonium ions (NH ) 4 Silica (SiO ) 2

No one < 30 ppm

(*) It is preferable to use pure water. Do not add more antifreeze than the maximum quantity specified in this manual.
3.7.2Typical plumbing diagram

Refer to the “Handbook” for further information regarding possible unit installation configurations.

4 FANCOIL
2

to radiant panel

from radiant panel 1

S/W

M

A

B

3 AB

7

T

to hydronic terminal

6

T

5

from hydronic terminal Hydraulic safety group
Glycol fill

from water supply

Num. 1 2 3 4 5 6

Description Heat pump Remote control Diverter valve
Fancoil
Y-filter or dirt separator with integrated filter
Expansion tank

3.7.3Plumbing diagram inside unit
The unit plumbing connection diagrams are provided below.

22

i-290 Inverter air/water heat pumps with axial fans
KAS

EV

W-OUT W-IN

RV

TE

OUT1

AV P

DV

TE

FM

IN1

Models i-290 0106, 0109, 0112, 0115, 0118

KAS TE IN TE OUT DV RV FM
P
AV
DA

HEAT EXCHANGER ANTIFREEZE RESISTOR UTILITY INLET TEMPERATURE PROBE UTILITY OUTLET TEMPERATURE PROBE DRAIN VALVE SAFETY VALVE FLOWMETER PUMP AUTOMATIC AIR VENTING VALVE
DEAERATOR

3.7.4Condensation drain system
All units of i-290 series are built in such a way that the base of the unit acts as a condensate drip tray. A plastic fitting is supplied as standard, to be connected underneath the base in the special provision for connecting a drain pipe to channel condensate.

Hole in bottom panel of outdoor unit

Gasket

Gasket

Drain fitting

Each unit is fitted with a hole on the base of the hydronic kit (on the side of the coil) for draining any condensation that may percolate from the plumbing pipes and water formed as a result of the defrosting process. The pipes are well insulated, condensation production is minimal. In the event of a leakage, refrigerant gas can escape from the unit through the hole in the base panel, so it is recommended that the condensate drain is always directed to an open place near the unit (within the danger zone defined in Chapter 5.5). If the unit is installed on the ground, it is also possible to direct the condensation into a bed of rubble or gravel for drainage. For typical free-field ground installation, please refer to the following pictures:

23

i-290 Inverter air/water heat pumps with axial fans

Z

MODEL i-290

z

0106 / 0109 / 0112 / 0115 / 0118 mm < 250

Caution: Do not obstruct the hole in the base panel for condensate drainage. Especially in very cold climate regions, it is recommended to install elevation supports in order to allow ice formation under the unit without damaging it by freezing. In addition, when outside air temperatures fall below 0°C, it is recommended to install a heating element on the discharge pipe.
3.7.5System load
CAUTION: Supervise all filling/reintegration operations. CAUTION: Before filling/reintegration the system, disconnect power to the units. CAUTION: The filling / reintegrating of the system must always take place under controlled pressure (max. 1). Ensure that a pressure reducer and safety valve is installed on the filling/reintegration line. CAUTION: The water in the filling/reintegration line must be properly pre-filtered from impurities and suspended particles. Ensure that a removable cartridge filter and a dirt separator are installed. CAUTION: Regularly check and vent the air built up in the system. CAUTION: Install an automatic air venting valve at the highest point of the system.

A B

If it is necessary to top up the system or adjust the glycol content, the service tap can be used. Unscrew the cap of the service tap (A) and connect a pipe of 14 or 12 mm (inertial diameter mtheeahsousreemcoennntsec- tcohre, ctkhetnhefiltlatphemsoydsetel minsbtaylluendsocrnewyoinugr uthneit)ricnognnnuetct(eBd). tOontcheetwheatoepremraatiinosntios completed, tighten the ring nut (B) again and screw the cap (A). In any case, it is advisable to use an external tap to fill the system.

3.7.6System discharge
If the unit needs to be drained completely, first close the manual inlet and outlet gate valves (not included in supply) and then detach the pipes on the outside of the water inlet and outlet to drain liquid from the unit (to make this operation easier, it is recommended to install two drain valves between the unit and manual gate valves on the outside of the water inlet and outlet).

24

i-290 Inverter air/water heat pumps with axial fans

4. GENERAL TECHNICAL DATA

4.1STANDARD UNIT DATA TABLE

TECHNICAL CHARACTERISTICS

Cooling
Heating
Compressor Refrigerant
Fans Internal heat exchan-
ger Hydraulic circuit
Noise level Electrical data

Cooling capacity (1)
min/nom/max Input power (1)
E.E.R. (1) Cooling capacity (2)
min/nom/max Input power (2)
E.E.R. (2) SEER (5) Water flow rate (1) User side heat exchanger pressure drops (1) Nominal useful head (1) Heating capacity (3)
min/nom/max Input power (3)
C.O.P. (3) Heating capacity (4)
min/nom/max Input power (4)
C.O.P. (4) Heating capacity (11)
min/nom/max Input power (11)
C.O.P. (11) SCOP (6) Water flow rate (3) User side heat exchanger drops (3) Nominal useful head (3) Energy efficiency water 35°C / 55°C
Type Refrigerant oil (type)
Number of compressors Oil charge (quantity) Type Refrigerant charge (7)
Amount of refrigerant in equivalent CO2 tonnes (7) Design pressure (high/low) heat pump mode Design pressure (high/low) chiller mode Type
Number Internal heat exchanger type N° internal heat exchangers
Water content Water content of hydronic circuit
Maximum water side pressure Plumbing fittings
Minimum water volume (8) Maximum circulator output Maximum circulator absorbed current Energy Efficiency Index (EEI) circolatore Sound power level Lw (9) Sound pressure at 1m distance Lp1 (10) Sound pressure at 10m distance Lp10 (10)
Power supply Maximum input power Maximum input current Maximum input power with antifreeze kit Maximum input current with antifreeze kit

Unit of measurement
kW
kW W/W
kW
kW W/W W/W L/s kPa kPa
kW
kW W/W
kW
kW W/W
kW
kW W/W W/W L/s kPa kPa Class
A n° L
kg ton bar bar

n° L L bar inch L kW A
dB(A) dB(A) dB(A)
kW A kW A

i-290

0106

0109

0112

2,10 / 5,43 /5,78*

3,27 / 8,57 / 9,20*

4,20 / 10,67 / 11,21*

1,95

2,77

3,75

2,79

3,09

2,85

3,29 / 5,62 / 6,19*

4,88 / 9,15 / 9,89*

6,30 / 12,57 / 13,25*

1,25

1,93

2,83

4,48

4,75

4,44

4,77

5,41

4,72

0,26

0,40

0,49

7,8

5,1

7,5

65,7

57,3

81,2

2,97 / 6,24 / 6,86*

4,12 / 9,69 / 10,42*

5,99 / 12,6 / 13,7*

1,31

2,05

2,61

4,76

4,72

4,83

2,74 / 5,97 / 6,42*

3,63 / 9,10 / 9,75*

5,26 / 11,61 / 12,77*

1,91

2,85

3,60

3,12

3,20

3,22

2,62 / 5,87 / 6,41*

3,36 / 9,05 / 9,81*

4,93 / 12,04 /13,08*

2,29

3,40

4,60

2,57

2,66

2,62

4,74

5,19

4,88

0,29

0,44

0,58

9,6

6,2

10,5

63,6

52,8

79,5

A+++/A++ PZ46M

A+++/A+++

A+++/A++

Twin Rotary DC Inverter

PZ46M

PZ46M

1 0,45
0,43 0,001 30,3/0,3 30,3/2

1
0,52 R290 0,75 0,002 30,3/0,3 30,3/2 Brushless DC motor

1 0,90
1,00 0,003 30,3/0,3 30,3/2

1

1

2

Plates

1

1

1

0,94

1,69

1,69

2,2

2,2

3,7

3

3

3

G1″

G1″

G1″

40 0,095
0,7 <0,21

40 0,095
0,7 <0,21

60 0,14 1,2 <0,21

59

60

62

44

45

47

28

29

31

230V/1/50Hz

2,9

4,4

5,1

14,4

21,4

25,8

3,0

4,6

5,3

15,0

22,0

26,4

25

i-290 Inverter air/water heat pumps with axial fans

TECHNICAL CHARACTERISTICS

Cooling
Heating
Compressor Refrigerant
Fans Internal heat exchanger
Hydraulic circuit Noise level
Electrical data

Cooling capacity (1)
min/nom/max Input power (1)
E.E.R. (1) Cooling capacity (2)
min/nom/max Input power (2)
E.E.R. (2) SEER (5) Water flow rate (1) User side heat exchanger pressure drops (1) Nominal useful head (1) Heating capacity (3)
min/nom/max Input power (3)
C.O.P. (3) Heating capacity (4)
min/nom/max Input power (4)
C.O.P. (4) Heating capacity (11)
min/nom/max Input power (11)
C.O.P. (11) SCOP (6) Water flow rate (3) User side heat exchanger pressure drops (3) Nominal useful head (3) Energy efficiency water 35°C / 55°C
Type Refrigerant oil (type)
Number of compressors Oil charge (quantity) Type Refrigerant charge (7)
Amount of refrigerant in equivalent CO2 tonnes (7) Design pressure (high/low) heat pump mode Design pressure (high/low) chiler mode Type
Number Internal heat exchanger N° internal heat exchanger
Water content Water content of hydronic circuit
Maximum water side pressure Plumbing fittings
Minimum water volume (8) Maximum circulator output Maximum circulator absorbed current Energy Efficiency Index (EEI) circolatore Sound power level Lw (9) Sound pressure at 1m distance Lp1 (10) Sound pressure at 10m distance Lp10 (10)
Power supply Maximum input power Maximum input current Maximum input power with antifreeze kit Maximum input current with antifreeze kit

Unit of measurement

0115

i-290

0118

kW

5,11 / 12,41 / 13,47 5,11 / 13,75 / 14,33

kW

3,71

4,34

W/W

3,35

3,16

kW

7,86 / 12,9 / 14,40 7,90 / 13,94 / 14,79

kW

2,40

2,69

W/W

5,37

5,18

W/W

5,02

5,04

L/s

0,57

0,66

kPa

11,7

16,0

kPa

79,7

73,5

kW

7,17 / 16,33 / 17,69 7,21 / 18,72 / 19,84

kW

3,30

4,05

W/W

4,94

4,62

kW

6,58 / 15,23 / 16,64 6,60 / 17,38 /18,65

kW

4,52

5,32

W/W

3,37

3,27

kW

6,20 / 14,65 /15,94 6,15 / 16,65 / 17,73

kW W/W W/W L/s kPa kPa Class
A n° L
kg ton bar bar

n° L L bar inch L kW A
dB(A) dB(A) dB(A)
kW A kW mm

5,17

6,04

2,83

2,76

4,85

4,76

0,78

0,87

22,0

27,8

66,8

59,8

A+++/A++

A+++/A++

Twin Rotary DC Inverter

PZ46M

PZ46M

1

1

0,9

0,9

R290

1,27

1,27

0,004

0,004

30,3/0,3

30,3/0,3

30,3/2

30,3/2

Brushless DC motor

2

2

Plates

1

1

1,69

1,69

3,7

3,7

3

3

G1″

G1″

70 0,14 1,2 <0,21

70 0,14 1,2 <0,21

64

64

49

49

33

33

400V/3/50Hz

7,7

8,2

15,8

16,5

7,9

8,3

16,4

17,1

26

i-290 Inverter air/water heat pumps with axial fans

Performance referring to the following conditions, according to standard UNI EN 14511:2022: (1) Cooling: outdoor air temperature 35°C; in/out water temperature 12/7°C. (2) Cooling: outdoor air temperature 35°C; in/out water temperature 23/18°C. (3) Heating: outdoor air temperature 7°C db 6°C db; in/out water temp 30/35°C. (4) Heating: outdoor air temperature 7°C db 6°C db; in/out water temp 47/55°C. (5) Cooling: low temperature,variable output, fixed flow rate. (6) Heating: average climatic conditions; Tbiv=-7°C; low temperature,variable output, fixed flow rate. (7) Indicative data subject to changes. For the correct value, always refer to the technical label on the unit. (8) Calculated for a decrease in system water temperature of 10°C with a defrost cycle lasting 6 minutes. (9) Sound mode: heating mode according to EN 12102:2022 Annex A; value determined on the basis of measurements made in accordance with UNI EN ISO 9614-1, in compliance with Eurovent certification requirements. (10) Sound pressure: value calculated from the sound power level in condition (9) using the standard UNI EN ISO 3744:2010. (11) Heating: outdoor air temperature 7 °C b.s. 6 °C b.u.; inlet/outlet water temp. 55/65°C. (*) activating the maximum Hz function. N.B. performance data are indicative and are subject to change. Furthermore the performance declared in points (1), (2), (3) and (4) is intended to refer to instantaneous power according to EN 14511:2022. The value declared in point (5) and (6) is determined according to UNI EN 14825:2022.

4.2ELECTRICAL AND AUXILIARY DATA

Power supply On board controller circuit

V/~/Hz V/~/Hz

230/1PH+PE/50*400/3PH+PE/50**
12/1/50

Remote controller circuit Fans power supply

V/~/Hz V/~/Hz

12/1/50 230/1/50

(*) For sizes 0106,0109,0112. – (**) For sizes 0115, 0118 NOTE: The electrical data are subject to change due to updates. It is therefore always necessary to refer to the technical specifications label applied on the right side panel of the unit.

27

i-290 Inverter air/water heat pumps with axial fans

5. CORRECTION FACTORS

5.1CORRECTION FACTORS FOR USE OF GLYCOL WATER MIXTURE
The correction factors of the water flow rate and pressure drops must be applied to the values obtained without use of glycol. The correction factor for the water flow rate is calculated to maintain the same temperature difference which would be achieved without the use of glycol.

Glycol percentage Freezing point [°C]

10%

-3,2

Performance correction factor
0,992

Absorbed power correction factor
1,01

Water flow rate correction factor
1,03

Pressure drops correction factor 1,11

Do not add more glycol than the maximum quantity indicated in this manual, as this may severely restrict the deaerator’s ability to remove gases, possibly resulting in damage to the component.

5.2SCALING CORRECTION FACTORS
The correction factors due to fouling of the internal gas/water heat exchanger are reported below.

m² °C/kW 0,44 x 10-¹ 0,88 x 10-¹ 1,76 x 10-¹

Output power correction factor 1,00 0,99 0,98

Input power correction factor 1,00 1,00 1,00

5.3INSTRUMENTATION CALIBRATIONS AND PROTECTIONS
Description High pressure switch High pressure alarm Low pressure alarm Maximum number of restarts/hour after high/low
Antifreeze protection
Hydronic circuit safety valve

Value
31,5 bar 30,3 bar Depends on the unit
3 Allarm triggered: 3°C
Allarm return: 5°C
3 bar

5.4CORRECTION FACTORS ACCORDING TO ALTITUDE
The performance correction factors according to altitude are calculated for cooling at conditions (1) and for heating at conditions (3) of the previous technical data tables and are provided for altitudes of 500, 1000, 1500 and 2000 m.

Altitude [m] Thermal output correction factor Power input correction factor in heating Cooling output correction factor Power input correction factor in cooling

i-290

500 0,9992 0,9985 0,9961 1,0021

1000 0,9979 0,9962 0,9873 1,0103

1500 0,9970 0,9939 0,9796 1,0149

2000 0,9958 0,9916 0,9746 1,0205

28

i-290 Inverter air/water heat pumps with axial fans
6. HYDRONIC UNIT DATA 6.1USEFUL HEADS
The following are the characteristic curves of the head-flow rate net of the pressure drops of the hydronic kit. The optimal operating point at the conditions specified at the apex (3) in the technical data table is highlighted on each curve. The system must be designed to guarantee the nominal flow rate relative to the working points shown below.

110

100

90

80

70

60

p [kPa]

50

40

30

20

10

0

0

0,25

0,5

i-290 0106, 0109

0,75

1

1,25

1,5

1,75

2

Q [m3/h]

i-290 0112, 0115, 0118

i-290 0106

i-290 0109

2,25

2,5

2,75

3

3,25

3,5

i-290 0112

i-290 0115

i-290 0118

p [kPa] Q [m3/h]

Useful head Water flow rate

6.2CHARACTERISTIC CURVES OF CIRCULATORS
Below is the range of useful heads which guarantee the unit during modulating of the circulator.

p [kPa]

100 90 80 70 60 50 40 30 20 10 0 0

i-290 0106, 0109

0,25

0,5

0,75

1

Q [m3/h]

1,25

1,5

1,75

29

i-290 Inverter air/water heat pumps with axial fans

p [kPa]

i-290 0112, 0115, 0118

120

110

100

90

80

70

60

50

40

30

20

10

0

0

0,25

0,5

0,75

1

1,25

1,5

1,75

2

2,25

2,5

2,75

3

3,25

Q [m3/h]

7. SOUND EMISSIONS ACCORDING TO EN 12102-1:2022
The sound levels are referred to units at full load operating under conditions that guarantee a thermal capacity equal to that declared at a temperature of 7°C for average climate, in accordance with EN 14825:2022. The tolerance on the value of the total sound power level is 2 dB (A). The value is calculated according with EN 12102-1:2022 regulation used in conjunction with UNI EN ISO 9614-1:2009 which describes the test methods and sound power measurement techniques with the intensimetric method. The sound pressure values are calculated from the sound power level using UNI EN ISO 3744: 2010, considering units operating in the open field.

Model i-290
0106 0109 0112 0115 0118

63 Hz
34,7 36,8 39,1 40,9 42,7

Octave band sound power level [dB(A)]

125 Hz 250 Hz 500 Hz 1000 Hz 2000 Hz

46,9

50,5

54,2

54,5

48,8

46,1

51,7

58,0

50,7

45,3

44,0

53,1

55,2

56,7

54,6

48,6

53,1

59,0

58,1

57,2

50,2

49,8

56,8

59,6

58,7

4000 Hz
40,9 42,5 54,1 54,2 52,0

Sound power level Lw(A)
[dB(A)] 59
60
62
64
64

Suond pressure level at 1m [dB(A)] 44,4 45,4 46,6 48,6 48,6

Sound pressure level at 10m [dB(A)] 27,7
28,7
30,6
32,6
32,6

30

i-290 Inverter air/water heat pumps with axial fans

Lw(A) [dB(A)]

Sound power level according to EN 12102-1:2022
70

65

60

55

50

45

40

35

30

25

20

15

10

5

0

63

125

250

500

1k

2k

4k

Tot

f [Hz]

0106

0109

0112

0115

0118

8. OPERATING LIMITS
8.1EVAPORATOR WATER FLOW
The nominal water flow rate refers to a 5°C temperature difference between the evaporator inlet and outlet. The maximum permitted flow rate features a 3°C temperature difference while the minimum one has an 8°C temperature difference at the nominal conditions as shown in the technical sheet. Insufficient water flow rates can cause excessively low evaporation temperatures causing the safety devices to trigger and stopping the unit and, in some extreme cases, forming ice in the evaporator and resulting in serious failures to the cooling circuit. For greater details, we have attached a table below with the minimum flow rates for the plate heat exchanger to guarantee proper operation according to the model (please note: the water flowmeter is applied to protect against failed triggering of the antifreeze probe due to the lack of flow but does not guarantee the minimum water flow rate required for correct operation of the unit).

Model i-290
Minimum water flow to be assured in chiller mode (condition (1) technical sheet) [l/s] Maximum water flow to be assured in chiller mode (condition (1) technical sheet) [l/s] Flowmeter intervention rate ­ decreasing / increasing flow* [l/s]

0106 0,16 0,43 0,100

Chiller mode

0109

0112

0,26

0,32

0,68

0,85

0,133

0,167

0115 0,37 0,99 0,200

0118 0,41 1,09 0,250

Pay attention to the pressure levels of the hydraulic system: too low values can cause malfunctions of the unit.
For very low hydraulic system pressure values, the flowmeter may show an unstable reading, so it is recommended to have an automatic loading system or a pressure monitoring system. It is periodically check the state of the deaerator, especially if very high temperature differences are read between the inlet and outlet on the water side, as the presence of air bubbles in the circuit reduces the available water flow rate, altering the flowmeter reading. As an approximation, and without any other measurement systems, the correct flow rate to guarantee the best performance of the unit can be verified with the circulator at maximum speed, by looking at the pressure gauges to check the pressure difference between the return and discharge water on the external plumbing fittings of the unit and making sure that this reading is equal to or lower than the useful head indicated on the curves shown in Paragraph 6.2 for the respective models.
8.2COLD WATER PRODUCTION (SUMMER MODE)
A minimum temperature of 5°C is allowed at the evaporator outlet: for lower temperatures, contact the Technical Department. In this case, contact our technical department for a feasibility study and evaluation of the modifications to be made according to the requirements. A maximum temperature of 20°C can be maintained at the evaporator outlet in steady-state operation. Slightly higher temperatures can however be tolerated durient transients and in the phases of operation.
8.3HOT WATER PRODUCTION (WINTER MODE)
When the system has reached steady state, the water inlet temperature must not drop below 22°C: lower values, not due to transient phases or reaching steady- state, can cause system failures and could possibly break the compressor. The maximum outlet water temperature must not exceed 75°C. There could be failures to the regular operation of the unit or, in more critical cases, the safety devices could be triggered due to temperatures higher than those indicated, especially if coupled with reduced water flow rates.
31

i-290 Inverter air/water heat pumps with axial fans
8.4AMBIENT AIR TEMPERATURE AND SUMMARY TABLE
The units are designed and built to operate in summer mode, with condensation control, at outdoor air temperatures between 10°C and 46°C. In heat pump mode, the allowed temperature range of the outdoor air goes from-20°C to +20°C depending on the outlet water temperature as shown in the table below.

Air source temperature Outlet water temperature

Water chiller mode Minimum +10°C Minimum +5°C

Maximum +46°C Maximum +20°C

Air source temperature Outlet water temperature

Heat pump mode
Minimum -20°C Minimum +22°C

Heat pump mode for domestic hot water

Air source temperature with water at maximum 39°C

Minimum -20°C

Air source temperature with water at maximum 55°C

Minimum -20°C

Outlet water temperature

Minimum +22°C

Maximum +20°C Maximum +75°C
Maximum +35°C Maximum +35°C Maximum +75°C

Below are the graphed operating limits for heating, cooling and domestic hot water production. Please note that operating the unit outside the stated operating limits causes blocking alarms that lead to product shutdown, with possible damage to components and/or safety organs.
8.5ENVELOPE IN HEATING AND COOLING

Tw [°C]

80

i-290 Heating

75

70

65

60

55

50

45

40

35

30

25

20 -25 -20 -15 -10

-5

0

5

Ta [°C]

10

15

20

25

32

i-290 Inverter air/water heat pumps with axial fans

25

i-290 Cooling

20

15

Tw [°C]

10

5

0

5

10

15

20

25

30

35

40

45

50

Ta [°C]

8.6ENVELOPE IN DHW

Tw [°C]

80

i-290 Sanitary mode

75

70

65

60

55

50

45

40

35

30

25

20 -25 -20 -15 -10 -5 0

5 10 15 20 25 30 35 40

Ta [°C]

33

i-290 Inverter air/water heat pumps with axial fans

9. PERFORMANCE TABLES
The tables show the capacity, power input and efficiency values for different outside air temperatures. The data shown are calculated according to EN 14511:2022. They are indicative and may be subject to change. (*) Data obtained for a water temperature variation of 5°C.
9.1HEATING STANDARD UNIT VERSION

HEATING

Tout [°C]

25

30

35

40

45

50

Model i-290 T air outdoor [°C] Heating capacity [kW] Power input [kW] COP [W/W] Heating capacity [kW] Power input [kW] COP [W/W] Heating capacity [kW] Power input [kW] COP [W/W] Heating capacity [kW] Power input [kW] COP [W/W] Heating capacity [kW] Power input [kW] COP [W/W] Heating capacity [kW] Power input [kW] COP [W/W]

-20

3,42

1,58

2,16

3,34

1,73

-15

3,95

1,55

2,55

3,86

1,70

-10

4,30

1,39

3,09

4,23

1,53

-7

4,66

1,33

3,50

4,58

1,47

-2

5,04

1,25

4,03

4,95

1,38

0106 2

6,11

1,23

4,98

5,92

1,34

7

6,60

1,07

6,15

6,37

1,17

12

6,69

0,86

7,77

6,53

1,01

15

6,71

0,83

8,08

6,58

0,97

20

6,81

0,76

8,96

6,70

0,90

-20

5,77

2,46

2,35

5,66

2,59

-15

6,55

2,43

2,70

6,41

2,56

-10

7,46

2,39

3,12

7,35

2,52

-7

8,19

2,37

3,46

8,06

2,51

-2

8,68

2,16

4,02

8,51

2,30

0109 2

9,05

1,98

4,57

8,86

2,11

7

10,18 1,72

5,90

9,93

1,91

12 10,86 1,53

7,17

10,54

1,68

15 10,95 1,46

7,47

10,64

1,62

20 11,06 1,33

8,35

10,77

1,48

-20

7,49

3,21

2,33

7,33

3,31

-15

7,95

3,11

2,56

7,82

3,22

-10

8,34

2,83

2,95

8,21

2,96

-7

8,76

2,71

3,23

8,65

2,84

-2

9,76

2,53

3,86

9,64

2,69

0112

2

11,97 2,57

4,65

11,79

2,72

7

13,14 2,15

6,11

12,78

2,40

12 14,03 1,86

7,53

13,80

2,07

15 14,27 1,76

8,13

14,05

1,96

20 14,77 1,55

9,55

14,57

1,75

-20

9,77

4,13

2,37

9,79

4,33

-15 10,82 4,09

2,64

10,78

4,32

-10 12,18 3,98

3,07

12,06

4,22

-7

13,14 3,93

3,33

13,03

4,19

-2

13,79 3,50

3,94

13,60

3,76

0115

2

16,46 3,31

4,97

16,17

3,58

7

16,82 2,76

6,09

16,67

3,03

12 17,72 2,38

7,47

17,33

2,65

15 17,75 2,30

7,74

17,34

2,58

20 18,10 2,11

8,58

17,71

2,40

-20

8,81

4,02

2,19

8,82

4,20

-15

9,82

3,91

2,51

9,81

4,12

-10 11,47 3,88

2,96

11,45

4,12

-7

12,72 3,87

3,28

12,66

4,12

-2

14,14 3,82

3,69

14,03

4,10

0118

2

18,28 3,94

4,64

18,09

4,26

7

19,09 3,42

5,59

19,00

3,73

12 20,34 3,01

6,74

19,98

3,33

15 20,28 2,88

7,05

19,88

3,21

20 20,38 2,61

7,82

19,98

2,94

1,93

3,24

1,89 1,71

3,15

2,00

1,58

3,10

2,00

1,55

3,01

2,15

1,40

2,27

3,77

1,85 2,04

3,69

1,95

1,89

3,66

1,98

1,85

3,59

2,12

1,69

2,77

4,16

1,67 2,49

4,07

1,82

2,24

4,08

1,84

2,21

4,00

1,98

2,02

3,12

4,50

1,61 2,81

4,41

1,75

2,52

4,41

1,80

2,45

4,33

1,93

2,24

3,59

4,86

1,52 3,20

4,76

1,66

2,87

4,74

1,75

2,71

4,64

1,88

2,47

4,41

5,87

1,50 3,91

5,77

1,65

3,50

5,74

1,77

3,24

5,62

1,92

2,93

5,44

6,24

1,31 4,76

6,12

1,45

4,22

6,05

1,62

3,74

5,90

1,77

3,33

6,47

6,39

1,15 5,56

6,26

1,29

4,85

6,22

1,42

4,38

6,06

1,57

3,86

6,78

6,42

1,12 5,73

6,33

1,27

4,98

6,28

1,37

4,58

6,15

1,52

4,05

7,44

6,58

1,05 6,27

6,45

1,20

5,38

6,48

1,28

5,06

6,36

1,43

4,45

2,19

5,56

2,72 2,04

5,45

2,86

1,91

5,22

2,76

1,89

5,12

2,90

1,77

2,50

6,30

2,69 2,34

6,19

2,84

2,18

6,06

2,87

2,12

5,95

3,01

1,98

2,92

7,24

2,67 2,71

7,11

2,82

2,52

7,10

2,99

2,38 7,07

3,16 2,24

3,21

7,93

2,66 2,98

7,81

2,81

2,78

7,85

3,07

2,56 7,73

3,24 2,39

3,70

8,36

2,44 3,43

8,20

2,60

3,15

8,23

2,85

2,89 8,08

3,02 2,68

4,20

8,69

2,26 3,85

8,51

2,41

3,53

8,62

2,66

3,24 8,52

2,83 3,01

5,20

9,69

2,05 4,72

9,45

2,21

4,28

9,43

2,46

3,84 9,20

2,64 3,48

6,25

10,25 1,84 5,60

9,97

1,98

5,04

9,97

2,23

4,47 9,66

2,41 4,01

6,54

10,33 1,77 5,82 10,04

1,92

5,21 10,08

2,17

4,65

9,76

2,35 4,15

7,30

10,43 1,64 6,34 10,13

1,79

5,64 10,19

2,05

4,98

9,79

2,23

4,39

2,21

7,18

3,44 2,09

7,08

3,60

1,97

6,94

3,88

1,79

6,83

4,09

1,67

2,43

7,70

3,37 2,29

7,65

3,54

2,16

7,50

3,83

1,96

7,36

4,04

1,82

2,77

8,11

3,12 2,60

8,02

3,30

2,44

7,88

3,59

2,20

7,80

3,79

2,06

3,05

8,52

3,01 2,84

8,42

3,19

2,65

8,27

3,48

2,38

8,18

3,69

2,22

3,58

9,49

2,87 3,31

9,36

3,06

3,06

9,15

3,34

2,74

9,02

3,55

2,54

4,33

11,63 2,95 3,93 11,48

3,16

3,64 11,20

3,46

3,24 11,03 3,69 2,98

5,33

12,60 2,61 4,83 12,36

2,83

4,38 11,99

3,10

3,86 11,78 3,34 3,53

6,67

13,57 2,28 5,97 13,32

2,50

5,32 12,93

2,77

4,66 12,68 3,01 4,22

7,19

13,83 2,17 6,36 13,59

2,39

5,69 13,22

2,66

4,98 12,97 2,89 4,50

8,34

14,35 1,96 7,30 14,11

2,18

6,47 13,91

2,43

5,72 13,66 2,66 5,15

2,26

9,75

4,54 2,15

9,65

4,77

2,02

9,46

5,24

1,81

9,34

5,51

1,70

2,50

10,73 4,55 2,35 10,63

4,80

2,21 10,39

5,15

2,02 10,27 5,44 1,89

2,87

12,00 4,47 2,69 11,90

4,74

2,51 11,66

4,98

2,35 11,50 5,27 2,18

3,11

12,94 4,44 2,91 12,82

4,72

2,71 12,56

4,89

2,58 12,41 5,19 2,39

3,62

13,45 4,02 3,33 13,28

4,29

3,10 13,01

4,51

2,88 12,81 4,80 2,67

4,53

15,94 3,86 4,12 15,71

4,14

3,79 15,44

4,43

3,48 15,18 4,73 3,21

5,51

16,33 3,30 4,94 16,06

3,59

4,49 15,84

3,91

4,05 15,55 4,21 3,68

6,53

16,97 2,94 5,78 16,62

3,24

5,12 16,44

3,54

4,63 16,12 3,85 4,18

6,71

16,98 2,87 5,92 16,65

3,18

5,27 16,54

3,46

4,77 16,24 3,77 4,30

7,38

17,40 2,70 6,44 17,11

3,01

5,68 17,10

3,28

5,21 16,80 3,60 4,67

2,10

8,80

4,40 2,00

8,73

4,62

1,89

8,80

4,86

1,81

8,68

5,11

1,70

2,38

9,76

4,34 2,25

9,67

4,57

2,12

9,70

4,84

2,00

9,59

5,11

1,88

2,77

11,39 4,36 2,62 11,31

4,62

2,45 11,34

4,93

2,29 11,19 5,22 2,15

3,08

12,56 4,38 2,88 12,46

4,65

2,69 12,46

4,99

2,51 12,32 5,29 2,33

3,42

13,86 4,39 3,17 13,70

4,68

2,93 13,61

5,02

2,71 13,42 5,34 2,51

4,26

17,88 4,57 3,92 17,61

4,90

3,59 17,42

5,25

3,31 17,16 5,61 3,07

5,09

18,72 4,05 4,62 18,40

4,38

4,20 18,10

4,71

3,84 17,78 5,06 3,52

6,01

19,62 3,67 5,34 19,30

4,02

4,80 19,15

4,32

4,44 18,81 4,68 4,02

6,20

19,49 3,55 5,49 19,16

3,90

4,92 19,26

4,19

4,61 18,88 4,55 4,15

6,80

19,66 3,29 5,99 19,37

3,64

5,33 19,71

3,91

5,04 19,40 4,28 4,53

34

i-290 Inverter air/water heat pumps with axial fans

55 (*)

HEATING Tout [°C]

60 (*)

65 (*)

70 (*)

75 (*)

Model i-290 T air outdoor [°C] Heating capacity [kW] Power input [kW] COP [W/W] Heating capacity [kW] Power input [kW] COP [W/W] Heating capacity [kW] Power input [kW] COP [W/W] Heating capacity [kW] Power input [kW] COP [W/W] Heating capacity [kW] Power input [kW] COP [W/W]

-20 -15 -10 -7 -2 0106 2 7 12 15 20 -20 -15 -10 -7 -2 0109 2 7 12 15 20 -20 -15 -10 -7 -2 0112 2 7 12 15 20 -20 -15 -10 -7 -2 0115 2 7 12 15 20 -20 -15 -10 -7 -2 0118 2 7 12 15 20

2,89 3,47 3,91 4,23 4,54 5,51 5,77 5,92 6,00 6,22 5,03 5,84 6,91 7,62 7,93 8,40 8,96 9,38 9,46 9,51 6,72 7,24 7,70 8,06 8,86 10,83 11,55 12,44 12,64 13,44 9,21 10,15 11,37 12,22 12,59 14,91 15,24 15,77 15,87 16,46 8,55 9,47 11,05 12,14 13,21 16,87 17,47 18,43 18,48 19,03

2,29

1,26

2,26

1,54

3,53

2,46

1,44

2,12

1,84

3,94

2,33

1,69

3,85

2,48

1,55

2,07

2,04

4,30

2,30

1,87

4,20

2,45

1,71

4,11

2,60 1,58

2,02

2,25

4,58

2,24

2,05

4,48

2,39

1,88

4,36

2,53 1,72

4,26

2,69 1,59

2,07

2,66

5,54

2,29

2,42

5,42

2,45

2,21

5,28

2,61 2,02

5,14 2,78 1,85

1,92

3,01

5,90

2,17

2,72

5,75

2,33

2,46

5,61

2,49 2,25

5,45 2,66 2,05

1,72

3,44

5,84

1,90

3,07

5,68

2,05

2,77

5,54

2,21 2,51

5,39 2,38 2,26

1,67

3,59

5,92

1,85

3,20

5,76

2,01

2,88

5,62

2,17 2,60

5,47 2,33 2,35

1,58

3,94

6,17

1,76

3,51

6,04

1,92

3,15

5,90

2,09 2,82

5,77 2,26 2,55

3,04

1,65

3,17

1,84

6,06

3,57

1,70

3,33

2,08

7,26

3,87

1,88

7,13

4,06

1,76

3,42

2,23

8,06

4,05

1,99

7,94

4,27

1,86

7,82

4,49 1,74

3,21

2,47

8,14

3,67

2,22

8,00

3,89

2,06

7,83

4,12 1,90

7,68 4,36 1,76

3,02

2,78

8,46

3,34

2,53

8,33

3,56

2,34

8,23

3,80 2,17

8,14 4,11 1,98

2,83

3,17

9,20

3,27

2,81

8,94

3,50

2,56

8,69

3,74 2,32

8,44 3,99 2,12

2,61

3,61

9,78

3,10

3,16

9,48

3,33

2,85

9,19

3,57 2,57

8,87 3,83 2,32

2,54

3,72

9,83

3,00

3,28

9,54

3,23

2,95

9,20

3,47 2,65

8,89 3,73 2,38

2,42

3,93

9,89

2,83

3,50

9,61

3,05

3,15

9,30

3,29 2,83

9,01 3,55 2,54

4,31

1,56

4,25

1,70

7,37

4,80

1,54

4,01

1,92

7,83

4,53

1,73

7,70

4,75

1,62

3,90

2,07

8,26

4,42

1,87

8,07

4,64

1,74

7,90

4,85 1,63

3,77

2,35

9,11

4,38

2,08

8,94

4,60

1,94

8,72

4,81 1,81

8,49

5,02 1,69

3,93

2,75

11,21

4,67

2,40

11,00

4,92

2,24 10,75 5,16 2,09 10,47 5,38 1,95

3,57

3,25

12,13

4,40

2,75

11,90

4,66

2,55 11,63 4,91 2,37 11,38 5,14 2,22

3,25

3,82

13,18

4,03

3,28

12,91

4,29

3,01 12,66 4,54 2,80 12,40 4,78 2,59

3,12

4,04

13,43

3,85

3,48

13,17

4,11

3,21 12,91 4,36 2,96 12,69 4,60 2,76

2,90

4,62

14,09

3,52

4,01

13,84

3,78

3,65 13,68 4,04 3,39 13,50 4,28 3,15

5,82

1,58

5,75

1,77

9,88

6,23

1,59

5,58

2,04

11,18

6,02

1,86

10,98

6,38

1,72

5,49

2,22

12,03

5,92

2,03

11,87

6,28

1,90 11,70 6,66 1,76

5,10

2,47

12,41

5,55

2,23

12,17

5,89

2,07 11,93 6,24 1,91 11,66 6,62 1,77

5,04

2,96

14,74

5,55

2,65

14,42

5,89

2,45 14,05 6,25 2,24 13,63 6,62 2,05

4,52

3,36

14,85

4,92

3,03

14,46

5,25

2,76 13,98 5,58 2,51 13,42 5,91 2,27

4,16

3,80

15,38

4,62

3,33

14,92

4,96

3,00 14,35 5,29 2,70 13,71 5,63 2,43

4,09

3,89

15,52

4,59

3,38

15,04

4,93

3,04 14,46 5,27 2,75 13,88 5,62 2,47

3,94

4,19

16,20

4,50

3,60

15,75

4,86

3,25 15,21 5,22 2,91 14,57 5,59 2,61

5,39

1,59

5,40

1,75

9,74

5,96

1,63

5,53

2,01

11,31

6,09

1,86

11,17

6,46

1,73

5,61

2,16

12,45

6,18

2,02

12,23

6,55

1,86 12,06 6,96 1,74

5,68

2,32

13,31

6,25

2,13

13,07

6,64

1,98 12,85 7,05 1,83 12,62 7,49 1,68

5,97

2,83

16,87

6,55

2,58

16,53

6,96

2,37 16,20 7,39 2,19 15,87 7,84 2,03

5,42

3,23

16,89

5,78

2,92

16,46

6,16

2,68 16,03 6,55 2,44 15,56 6,95 2,25

5,05

3,64

17,69

5,45

3,25

17,19

5,83

2,95 16,66 6,22 2,69 16,07 6,61 2,44

4,91

3,77

17,70

5,32

3,33

17,26

5,71

3,03 16,68 6,10 2,74 16,06 6,49 2,48

4,65

4,09

18,19

5,09

3,58

17,73

5,48

3,23 17,22 5,88 2,93 16,63 6,28 2,64

35

9.2COOLING
5

i-290 Inverter air/water heat pumps with axial fans

COOLING

Tout [°C]

7

10

12

15

18

Model i-290 T air outdoor [°C] Cooling capacity [kW] Power input [kW] EER [W/W] Cooling capacity [kW] Power input [kW] EER [W/W] Cooling capacity [kW] Power input [kW] EER [W/W] Cooling capacity [kW] Power input [kW] EER [W/W] Cooling capacity [kW] Power input [kW] EER [W/W] Cooling capacity [kW] Power input [kW] EER [W/W]

20 5,57 1,21 4,60 5,88 1,22 4,82 6,41 1,23 5,21 5,69 0,93 6,09 5,56 0,74 7,51 6,01 0,73 8,25

25 5,41 1,43 3,78 5,73 1,44 3,98 6,29 1,46 4,31 5,64 1,11 5,06 5,45 0,92 5,92 5,95 0,91 6,54

30 5,33 1,70 3,14 5,68 1,69 3,36 6,16 1,75 3,52 5,54 1,31 4,22 5,38 1,08 4,98 5,81 1,09 5,33 0106 35 5,14 1,92 2,68 5,43 1,95 2,79 5,88 2,00 2,94 5,36 1,51 3,55 5,12 1,26 4,06 5,62 1,26 4,50

40 5,03 2,16 2,33 5,30 2,19 2,42 5,83 2,24 2,60 5,23 1,71 3,05 4,99 1,45 3,44 5,46 1,46 3,74

45 4,72 2,32 2,03 5,00 2,35 2,13 5,46 2,39 2,29 4,84 1,85 2,62 4,64 1,57 2,96 5,11 1,60 3,19

20 8,14 1,80 4,52 8,82 1,82 4,83 9,70 1,85 5,24 8,72 1,48 5,91 8,32 1,15 7,24 8,97 1,14 7,88

25 8,18 2,07 3,95 8,86 2,09 4,24 9,63 2,13 4,52 8,92 1,76 5,06 8,36 1,37 6,10 9,17 1,37 6,69

30 8,27 2,42 3,42 8,79 2,45 3,59 9,58 2,49 3,85 9,16 2,12 4,32 8,57 1,65 5,19 9,38 1,65 5,69 0109 35 8,15 2,75 2,96 8,57 2,77 3,09 9,55 2,83 3,38 9,12 2,47 3,69 8,41 1,91 4,40 9,15 1,93 4,75

40 7,73 3,11 2,48 8,26 3,18 2,60 9,03 3,26 2,77 8,92 2,86 3,12 8,37 2,27 3,69 9,08 2,31 3,93

45 7,03 3,35 2,10 7,41 3,40 2,18 8,13 3,48 2,34 8,11 3,07 2,64 7,73 2,48 3,12 8,52 2,53 3,37

20 10,36 2,20 4,70 11,19 2,24 4,99 12,29 2,20 5,58 11,41 1,90 5,99 11,20 1,65 6,79 12,26 1,61 7,64

25 10,42 2,64 3,94 11,29 2,67 4,23 12,28 2,70 4,56 11,49 2,33 4,94 11,44 2,09 5,46 12,66 2,06 6,15

30 10,28 3,21 3,21 11,04 3,20 3,44 12,10 3,26 3,71 11,45 2,79 4,10 11,48 2,45 4,69 12,67 2,48 5,10 0112 35 9,80 3,72 2,63 10,67 3,75 2,85 11,65 3,79 3,09 11,13 3,24 3,43 11,36 2,88 3,96 12,57 2,83 4,44

40 9,54 4,32 2,21 10,10 4,39 2,30 11,18 4,47 2,51 10,88 3,83 2,84 11,24 3,40 3,29 12,36 3,44 3,60

45 8,78 4,64 1,89 9,29 4,70 1,98 10,19 4,82 2,12 9,99 4,17 2,40 10,45 3,68 2,83 11,34 3,76 3,02

20 10,56 1,84 5,76 11,34 1,82 6,21 12,63 1,77 7,12 11,18 1,48 7,57 9,98 1,08 9,24 10,94 1,02 10,73

25 11,47 2,44 4,71 12,41 2,44 5,08 13,72 2,40 5,71 12,23 2,03 6,02 11,18 1,50 7,47 12,19 1,46 8,36

0115

30 11,75 3,09 3,82 12,78 3,07 4,17 13,82 3,10 4,45 12,78 2,60 4,91 11,67 1,97 5,94 12,76 1,94 6,63 35 11,60 3,71 3,13 12,41 3,71 3,35 13,63 3,76 3,62 12,80 3,15 4,06 11,84 2,43 4,88 12,90 2,40 5,37

40 11,32 4,31 2,62 12,18 4,33 2,82 13,40 4,42 3,03 12,61 3,79 3,32 11,77 3,00 3,93 12,95 3,00 4,33

45 10,39 4,64 2,24 11,04 4,71 2,34 12,34 4,77 2,58 11,45 4,14 2,76 10,94 3,31 3,29 11,91 3,33 3,57

20 12,08 2,26 5,35 12,87 2,24 5,75 14,14 2,22 6,35 12,70 1,83 6,97 11,71 1,41 8,30 12,61 1,37 9,22

25 12,66 2,96 4,29 13,56 2,94 4,63 15,11 2,94 5,14 13,45 2,37 5,75 12,10 1,76 6,88 13,05 1,73 7,51

30 13,01 3,64 3,57 14,06 3,68 3,83 15,52 3,67 4,24 13,99 2,98 4,76 12,58 2,25 5,63 13,75 2,22 6,17 0118 35 12,94 4,35 2,97 13,75 4,34 3,16 15,18 4,43 3,43 14,02 3,59 4,00 12,89 2,71 4,76 13,94 2,69 5,18

40 12,81 5,02 2,55 13,47 5,05 2,67 14,92 5,12 2,91 13,66 4,25 3,27 12,77 3,33 3,84 13,84 3,33 4,16

45 11,83 5,43 2,17 12,43 5,46 2,27 13,68 5,55 2,47 12,59 4,64 2,75 11,64 3,65 3,18 12,64 3,69 3,43

36

i-290 Inverter air/water heat pumps with axial fans

9.3SANITARY
The tables show the heating capacity, input power and COP values at various outdoor air temperatures during summer for technical water at 45 / 50 / 55 / 60 / 65 / 70 / 75 °C for domestic hot water production. The technical data are indicative and are subject to change. (*) Data obtained for a water temperature variation of 5°C.

COOLING

Tout [°C]

5

7

10

12

15

18

Model i-290 T air outdoor [°C] Cooling capacity [kW] Power input [kW] EER [W/W] Cooling capacity [kW] Power input [kW] EER [W/W] Cooling capacity [kW] Power input [kW] EER [W/W] Cooling capacity [kW] Power input [kW] EER [W/W] Cooling capacity [kW] Power input [kW] EER [W/W] Cooling capacity [kW] Power input [kW] EER [W/W]

20 5,57 1,21 4,60 5,88 1,22 4,82 6,41 1,23 5,21 5,69 0,93 6,09 5,56 0,74 7,51 6,01 0,73 8,25

25 5,41 1,43 3,78 5,73 1,44 3,98 6,29 1,46 4,31 5,64 1,11 5,06 5,45 0,92 5,92 5,95 0,91 6,54

30 5,33 1,70 3,14 5,68 1,69 3,36 6,16 1,75 3,52 5,54 1,31 4,22 5,38 1,08 4,98 5,81 1,09 5,33

0106 35

5,14

1,92

2,68 5,43 1,95 2,79 5,88 2,00 2,94 5,36 1,51 3,55 5,12 1,26 4,06 5,62 1,26 4,50

40 5,03 2,16 2,33 5,30 2,19 2,42 5,83 2,24 2,60 5,23 1,71 3,05 4,99 1,45 3,44 5,46 1,46 3,74

45 4,72 2,32 2,03 5,00 2,35 2,13 5,46 2,39 2,29 4,84 1,85 2,62 4,64 1,57 2,96 5,11 1,60 3,19

20 8,14 1,80 4,52 8,82 1,82 4,83 9,70 1,85 5,24 8,72 1,48 5,91 8,32 1,15 7,24 8,97 1,14 7,88

25 8,18 2,07 3,95 8,86 2,09 4,24 9,63 2,13 4,52 8,92 1,76 5,06 8,36 1,37 6,10 9,17 1,37 6,69

30 8,27 2,42 3,42 8,79 2,45 3,59 9,58 2,49 3,85 9,16 2,12 4,32 8,57 1,65 5,19 9,38 1,65 5,69

0109 35

8,15

2,75

2,96 8,57 2,77 3,09 9,55 2,83 3,38 9,12 2,47 3,69 8,41 1,91 4,40 9,15 1,93 4,75

40 7,73 3,11 2,48 8,26 3,18 2,60 9,03 3,26 2,77 8,92 2,86 3,12 8,37 2,27 3,69 9,08 2,31 3,93

45 7,03 3,35 2,10 7,41 3,40 2,18 8,13 3,48 2,34 8,11 3,07 2,64 7,73 2,48 3,12 8,52 2,53 3,37

20 10,36 2,20 4,70 11,19 2,24 4,99 12,29 2,20 5,58 11,41 1,90 5,99 11,20 1,65 6,79 12,26 1,61 7,64

25 10,42 2,64 3,94 11,29 2,67 4,23 12,28 2,70 4,56 11,49 2,33 4,94 11,44 2,09 5,46 12,66 2,06 6,15

30 10,28 3,21 3,21 11,04 3,20 3,44 12,10 3,26 3,71 11,45 2,79 4,10 11,48 2,45 4,69 12,67 2,48 5,10

0112 35

9,80

3,72

2,63 10,67 3,75 2,85 11,65 3,79 3,09 11,13 3,24 3,43 11,36 2,88 3,96 12,57 2,83 4,44

40 9,54 4,32 2,21 10,10 4,39 2,30 11,18 4,47 2,51 10,88 3,83 2,84 11,24 3,40 3,29 12,36 3,44 3,60

45 8,78 4,64 1,89 9,29 4,70 1,98 10,19 4,82 2,12 9,99 4,17 2,40 10,45 3,68 2,83 11,34 3,76 3,02

20 10,56 1,84 5,76 11,34 1,82 6,21 12,63 1,77 7,12 11,18 1,48 7,57 9,98 1,08 9,24 10,94 1,02

25 11,47 2,44 4,71 12,41 2,44 5,08 13,72 2,40 5,71 12,23 2,03 6,02 11,18 1,50 7,47 12,19 1,46 8,36

30 11,75 3,09 3,82 12,78 3,07 4,17 13,82 3,10 4,45 12,78 2,60 4,91 11,67 1,97 5,94 12,76 1,94 6,63 0115 35 11,60 3,71 3,13 12,41 3,71 3,35 13,63 3,76 3,62 12,80 3,15 4,06 11,84 2,43 4,88 12,90 2,40 5,37

40 11,32 4,31 2,62 12,18 4,33 2,82 13,40 4,42 3,03 12,61 3,79 3,32 11,77 3,00 3,93 12,95 3,00 4,33

45 10,39 4,64 2,24 11,04 4,71 2,34 12,34 4,77 2,58 11,45 4,14 2,76 10,94 3,31 3,29 11,91 3,33 3,57

20 12,08 2,26 5,35 12,87 2,24 5,75 14,14 2,22 6,35 12,70 1,83 6,97 11,71 1,41 8,30 12,61 1,37 9,22

25 12,66 2,96 4,29 13,56 2,94 4,63 15,11 2,94 5,14 13,45 2,37 5,75 12,10 1,76 6,88 13,05 1,73 7,51

30 13,01 3,64 3,57 14,06 3,68 3,83 15,52 3,67 4,24 13,99 2,98 4,76 12,58 2,25 5,63 13,75 2,22 6,17 0118 35 12,94 4,35 2,97 13,75 4,34 3,16 15,18 4,43 3,43 14,02 3,59 4,00 12,89 2,71 4,76 13,94 2,69 5,18

40 12,81 5,02 2,55 13,47 5,05 2,67 14,92 5,12 2,91 13,66 4,25 3,27 12,77 3,33 3,84 13,84 3,33 4,16

45 11,83 5,43 2,17 12,43 5,46 2,27 13,68 5,55 2,47 12,59 4,64 2,75 11,64 3,65 3,18 12,64 3,69 3,43

37

i-290 Inverter air/water heat pumps with axial fans

10. DATA FOR THE ENERGY CERTIFICATION OF BUILDINGS ACCORDING TO UNI/TS 113004 FOR HEAT PUMPS
The supplementary data of heat pumps for the calculation of the energy performance of buildings according to UNI/TS 11300 part 4 are given below. The characteristics quantities that will be provided for each model are explained below, according to statement 30 of the standard.

Reference temperature PLR (T = -10°C)
des
Power DC at full load COP at partial load
COP at full load CR
Correction factor Fp PLR CR DC DC
bival
Pdesign COP COP’
Model i-290 0106

-10°C 100%

1 1

A Tbival -7°C

88%

DC = DC

A

bival

COP

COP’

1

1

B

C

2°C

7°C

54%

35%

DC

DC

COP

COP

COP’

COP’

(0,54 x P ) / DC des COP/COP’

(0,35 x P ) / DC des COP/COP’

part load ratio – climatic load factor

heat pump load factor

full load power at indicated temperatures full load power at -7/35°C

full load with temperate climate COP with CR load at the same temperature conditions as COP’ COP at full load under the same temperature conditions as COP

D
12°C 15% DC COP COP’ (0,15 x P ) / DC
des
COP/COP’

Operating limits
COLD source: Operating temperature (cut-off)

OUTDOOR AIR

min

-20°C

max

20°C

HOT source: (cut-off)
Operating temperature (cut-off)

WATER

min

22°C

max

75°C

Performance data measured in partial load conditions, according to UNI/TS 11300-4

A Tbival

B

Reference temperature

-7°C

2°C

C

D

7°C

12°C

PLR (T = -10°C)

88%

54%

35%

15%

des

Power DC at full load

4,50

5,87

6,24

6,39

COP at partial load

2,81

3,85

4,62

4,87

COP at full load

2,81

3,91

4,81

5,56

CR

1,00

0,47

0,29

0,12

Correction factor Fp

1,00

0,98

0,96

0,88

38

Model i-290 0109

Operating limits COLD source: Operating temperature (cut-off)
HOT source: Operating temperature (cut-off)

i-290 Inverter air/water heat pumps with axial fans

OUTDOOR AIR

min

-20°C

max

20°C

WATER

min

22°C

max

75°C

Performance data measured in partial load conditions, according to UNI/TS 11300-4

A Tbival

B

C

Reference temperature

-7°C

2°C

7°C

PLR (T = -10°C)

88%

54%

35%

des

Power DC at full load

7,93

8,69

9,69

COP at partial load

2,98

3,82

4,70

COP at full load

2,98

3,85

4,81

CR

1,00

0,56

0,33

Correction factor Fp

1,00

0,99

0,98

Model i-290 0112

Operating limits

COLD source: Operating temperature (cut-off)

HOT source: Operating temperature (cut-off)

D
12°C 15% 10,25 5,19 5,60 0,13 0,93

OUTDOOR AIR

min

-20°C

max

20°C

WATER

min

22°C

max

75°C

Performance data measured in partial load conditions, according to UNI/TS 11300-4

Reference temperature PLR (T = -10°C)
des
Power DC at full load COP at partial load
COP at full load CR
Correction factor Fp

A Tbival -7°C 88% 8,52 2,84 2,84 1,00 1,00

B
2°C 54% 11,63 3,90 3,93 0,45 0,99

C
7°C 35% 12,60 4,70 4,81 0,27 0,98

D
12°C 15% 13,57 5,52 5,97 0,11 0,93

39

i-290 Inverter air/water heat pumps with axial fans

Model i-290 0115

Operating limits COLD source: Operating temperature (cut-off)
HOT source Operating temperature (cut-off)

OUTDOOR AIR

min

-20 °C

max

20 °C

WATER

min

22 °C

max

75 °C

Performance data measured in partial load conditions, according to UNI/TS 11300-4

Reference temperature PLR (T = -10°C)
des
Power DC at full load COP at partial load
COP at full load CR
Correction factor Fp
Model i-290 0118

A T bival -7°C 88%
12,94 2,91 2,91 1,00 1,00

B 2°C 54% 15,94 4,10 4,12 0,50 0,99
Operating Limits

C
7°C 35% 16,33 4,74 4,81 0,32 0,99

D
12°C 15% 16,97 5,51 5,78 0,13 0,95

COLD source: Operating temperature (cut-off)
HOT source: Operating temperature (cut-off)

OUTDOOR AIR

min

-20°C

max

20°C

WATER

min

22°C

max

75°C

Performance data measured in partial load conditions, according to UNI/TS 11300-4

Reference temperature PLR (T = -10°C)
des
Power DC at full load COP at partial load
COP at full load CR
Correction factor Fp

A Tbival -7°C 88% 12,56 2,88 2,88 1,00 1,00

B
2°C 54% 17,88 3,89 3,92 0,43 0,99

C
7°C 35% 18,72 4,74 4,81 0,27 0,98

D
12°C 15% 19,62 5,09 5,34 0,11 0,95

40

i-290 Inverter air/water heat pumps with axial fans

10.1EER DATA TO CALCULATE THE ENERGY PERFORMANCE OF BUILDINGS, ACCORDING TO UNI/TS 11300-3
The EER coefficients under partial load conditions for i-290 reversible heat pumps are provided. The conditions of reference under partial load specified by standard UNI/TS 11300-3 for air-water reversible chillers and heat pumps are shown below. The EER are also provided for load factors lower than 25%.

Test

Load factor

Outdoor air dry bulb temperature

Chilled water temperature on fan coil input/ output

1

100%

35

12/7

2

75%

30

(*)/7

3

50%

25

(*)/7

4

25%

20

(*)/7

(*) temperature set by the full load water flow rate Model i-290 0106

i-290 0106

Outdoor air dry

bulb temperature Load factor F%

EER

[°C]

35

100%

2,79

30

75%

3,59

25

50%

4,38

20

25%

5,23

Cooling capacity [kW] 5,43 4,02 2,67 1,62

C 0,95 0,94 0,87 0,71 0,46 0,29
Model i-290 0109

Load factor F% 20% 15% 10% 5% 2% 1%

EER @20°C xC
4,96 4,91 4,55 3,71 2,40 1,52

i-290 0109

Outdoor air dry

bulb temperature Load factor F%

EER

[°C]

35

100%

3,09

30

75%

4,00

25

50%

5,25

20

25%

5,62

Cooling capacity [kW] 8,57 6,44 4,29 2,64

C

Load factor F%

0,95

20%

0,94

15%

0,87

10%

0,71

5%

0,46

2%

0,29

1%

EER @20°C xC
5,34 5,28 4,89 3,99 2,58 1,63

EER

EER

6,0 5,0 4,0 3,0 2,0 1,0 0,0
0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100% F%
6,0 5,0 4,0 3,0 2,0 1,0 0,0
0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100% F%

41

Model i-290 0112

i-290 0112

Outdoor air dry

bulb temperature Load factor F%

EER

[°C]

35

100%

2,85

30

75%

3,84

25

50%

4,87

20

25%

5,48

Cooling capacity
[kW] 10,67 7,87 5,21 3,67

C

Load factor F%

0,95

20%

0,94

15%

0,87

10%

0,71

5%

0,46

2%

0,29

1%

EER @20°C xC
5,20 5,15 4,77 3,89 2,52 1,59

Model i-290 0115

i-290 0115

Outdoor air dry

bulb temperature Load factor F%

EER

[°C]

35

100%

3,35

30

75%

4,51

25

50%

5,50

20

25%

7,05

Cooling capacity
[kW] 12,41 9,19 6,10 4,51

C

Load factor F%

0,95

20%

0,94

15%

0,87

10%

0,71

5%

0,46

2%

0,29

1%

Model i-290 0118

EER @20°C xC
6,69 6,62 6,13 5,00 3,24 2,04

EER

EER

i-290 Inverter air/water heat pumps with axial fans
6,0 5,0 4,0 3,0 2,0 1,0 0,0
0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100% F%
8,0 7,0 6,0 5,0 4,0 3,0 2,0 1,0 0,0
0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100% F%

42

i-290 0118

Outdoor air dry

bulb temperature Load factor F%

EER

[°C]

35

100%

3,16

30

75%

4,16

25

50%

5,31

20

25%

6,42

Cooling capacity
[kW] 13,75 10,23 6,79 4,30

C

Load factor F%

EER @20°C xC

0,95

20%

6,10

0,94

15%

6,03

0,87

10%

5,58

0,71

5%

4,56

0,46

2%

2,95

0,29

1%

1,86

EER

i-290 Inverter air/water heat pumps with axial fans
7,0 6,0 5,0 4,0 3,0 2,0 1,0 0,0
0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100% F%

43

11. REFRIGERANT SAFETY DATA SHEET

i-290 Inverter air/water heat pumps with axial fans

Name:
Main hazards: Specific hazards:
General information: Inhalation: Eye contact: Skin contact:
Extinguishing media: Specific hazards: Specific methods:
Personal precautions:
Environmental precautions: Cleaning methods:
Handling: Technical measures/precautions:
Advice for safe use:
Storage:
Control parameters:
Respiratory protection: Eye protection: Hand protection:
Hygienic measures:
Colour: Odour: Boiling point: Flash point: Relative gas density (air=1) Relative liquid density (water=1) Solubility in water:
Stability: Materials to avoid: Decomposition products
hazardous:
Acute toxicity: Local effects: Long term toxicity:
Global warming potential GWP (R744=1):
Ozone Depletion Potential ODP (R11=1):
Disposal consideration:

R290
HAZARDS IDENTIFICATION Highly flammable gas. Vapours are heavier than air and can cause asphyxiation due to reduced oxygen levels. Contact with the liquid can cause frost burns.
FIRST AID MEASURES In high concentrations it can cause asphyxia. Symptoms may include loss of mobility and/or consciousness. In low concentrations it may have a narcotic effect. Move the victim to an uncontaminated area while wearing self-contained breathing apparatus. Use oxygen or artificial respiration artificial respiration if necessary. Keep the patient lying down and warm. Call a doctor. Carefully rinse with plenty of water for at least 15 minutes. Wash immediately with plenty of water for at least 15 minutes. Immediately remove contaminated clothing.
FIRE FIGHTING MEASURES Water spray, dry powder. Exposure to flames may cause the vessel to rupture or explode. Cool down the containers with a water spray from a safe position. Stop the product leakage if possible. Use water spray, if possible, to abate the fumes. Move the vessels away from the area of the fire if this can be done without posing any risks.
ACCIDENTAL RELEASE MEASURES Try to stop the leak. Evacuate personnel to safety areas. Eliminate the ignition sources. Ensure proper ventilation. Avoid entering sewers, basements, excavations and areas where accumulation can be dangerous. Use personal protective equipment. Remain upwind. Try to stop the leak. Ventilate the area.
HANDLING AND STORAGE Ensure sufficient air exchange and/or suction in the working area. Do not smoke. Keep away from sources of ignition (including electrostatic charges). Use only appropriate equipment, suitable for the product. Do not inhale the gas. Close carefully and store in a cool, dry and well ventilated area. Storage containers should be checked periodically. Do not store with other oxidants in general or other combustible substances. All electrical equipment in the storage area are compliant with the risk of explosive atmospheres formation.
EXPOSURE CONTROLS/PERSONAL PROTECTION
OEL: data not available. DNEL: data not available. PNEC: data not available. Filter masks can be used if the ambient conditions and duration of use are known. Safety goggles. Work gloves. No smoking.
PHYSICAL AND CHIMICAL PROPERTIES Colourless. Odourless. -42,1 °C at atm press 470°C 1,50 0,58 75 mg/l.
STABILITY AND REACTIVITY Stable under normal conditions.
Air, oxidising agents . Keep away from heat sources/sparks/open flames/heated surfaces. Under normal conditions of storage and use, dangerous decomposition products should not be generated.
TOXICOLOGICAL INFORMATION CL50/inhalation/4 hours/on rat = 20000 ppm. No known effect. No known effect.
ENVIRONMENTAL INFORMATION
3
0
Refer to the supplier’s gas recovery programme. Avoid direct discharge into the atmosphere. Do not discharge where accumulation can be dangerous. Ensure that the emissions limits required by local regulations or specified in authorizations are not exceeded.

44

ADVANTIX SpA Via S. Giuseppe Lavoratore 24,
37040 Arcole (VR) Italy Tel. (+39).045.76.36.585 E-mail: info@advantixspa.it
www.maxa.it

References

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