Sime 021 Inverter Air Water Heat Pumps with Axial Fan Instruction Manual

Sime 021 Inverter Air Water Heat Pumps with Axial Fan

Product Information

Specifications

• Product: Chiller and Inverter Air/Water Heat Pumps with Axial Fan
• Models: SHP M PLUS 021, SHP M PLUS 026, SHP M PLUS 028, SHP M PLUS 032
• Manufacturer: Fonderie SIME S.p.A.
• Code: 6332358 – R04

Product Usage Instructions

Purpose and Contents of the Manual
The manual provides essential information for the selection, installation, operation, and maintenance of the unit. It is designed for operators to use the equipment efficiently, even without specific prior knowledge.
CAUTION: Some operations described in the manual should be performed by skilled personnel with technical qualifications. These tasks include installation, maintenance, and decommissioning.

How to Keep the Manual
Store the manual in a safe place accessible to all operators for reference.

Graphic Symbols Used in the Manual
Warning Symbol: Indicates operations that can be dangerous for people or disrupt the unit’s correct operation.

FAQ

1. Q: What should I do if the unit is not functioning properly?
   A: If you encounter any issues with the unit’s performance, refer to the troubleshooting section of the manual or contact customer support for assistance.

2. Q: How often should routine maintenance be performed on the unit?
   A: Routine maintenance should be conducted according to the schedule outlined in the manual to ensure optimal performance and longevity of the equipment.

04| 02-2022| EM| AR| Added warnings for users of metal implants, added sound power to technical data table according to EN 12102:2017, adjusted notes to technical data table
---|---|---|---|---
03| 01-2022| EM| AR| Modified compressor oil type, modified heat pumps SEER, modified maximum absorbed power and current values, correction current and maximum absorbed power heat pump fans 021, 026, correct sound power reference to the standard (UNI EN ISO 9641-1).
02| 10-2021| EM| AR| 021, 026 data update for fan change, heat pumps condition A7W45 size 021 and condition A35W18 size 021, 026 data update, added data version BT, change of Lw values, change of centre of gravity and dampers position, added maintenance indications, modified voltage tolerance chap. 6
01| 07-2021| MS| AB| Updated cap. 5.9
00| 01-2021| EM| AR| First emission
Rev| Date| Compiled| Approved| Note
Code| Serie
MUI01040120001.04| Chillers and Inverter Air/Water heat pumps with axial fan

The manual of the units contains all the necessary information for optional use of the equipment under safe conditions for the operator.

PURPOSE AND CONTENTS OF THE MANUAL

This manual provides basic information as to the selection, installation, operation and maintenance of the unit. It is intended for the operators of the appliance and it enables them to use the equipment efficiently, even if they do not have any previous specific knowledge.
CAUTION: Although this manual has been drafted for the end user, some of the operations described are the responsibility of skilled personnel having technical or professional qualifications to perform the activities herein. They must also be kept up-to-date by attending refresher courses acknowledged by the competent authorities. These tasks include: installation, routine and extraordinary maintenance, decommissioning of the appliance and any other operation indicated “by qualified personnel”.
When the installation and/or maintenance operations are over, the qualified operator must correctly inform the end user regarding use of the appliance and the necessary periodical inspections. The operator has the responsibility of submitting all of the documentation necessary (including this manual) and of explain-ing that it all must be kept with care, in the vicinity of the appliance and always available.
The manual describes the machine at the moment it was sold. It must therefore be considered adequate with respect to the state-of-the-art in terms of potentiality, ergonomics, safety and functionality.
The company also performs technological upgrades and does not consider itself obliged to update the manuals of previous machine versions which could even be incompatible. Therefore make sure to use the supplied manual for the installed unit.
The user is recommended to follow the instructions contained in this booklet, especially those concerning safety and routine maintenance.

HOW TO KEEP THE MANUAL
The manual has to always be kept together with the unit it refers to. It has to be stored in a safe place, away from dust and moisture. It must be accessible to all users who shall consult it any time they are in doubt on how to operate the equipment. The company reserves the right to modify its products and related manuals without necessarily updating previous versions of the reference material. We also decline any responsibility for possible inaccuracies in the manual if due to printing or transcription errors. The customer shall store any updated copy of the manual or parts of it delivered by the manufacturer as an attachment to this manual. The company is available to give any detailed information about this manual and to give information regarding the use and the maintenance of its own units.

GRAPHIC SYMBOLS USED IN THE MANUAL

NORMATIVE REFERENCES

Units have been designed in compliance with the following directives and harmonized standards on the safety of machinery: EC directives , 2014/35/UE, 2014/30/UE, 2011/65/UE, 2012/19/UE, 2014/68/UE

• Standard UNI EN 12735-1
• Standard CEI EN 60335-1, CEI EN 60335-2-40, CEI EN 55014-1, CEI EN 55014-2
• EN 50581
• EN 14276

And the following directives, regulations and standards on eco design and energy labelling:

• Community directive 2009/125/UE and subsequent transposal
• UE Regulation 2017/1369
• UE Regulation 811/2013
• UE regulation 813/2013
• EN 14511-1:2018, EN 14511-2:2018, EN 14511-3:2018, EN 14511-4:2018
• EN 14825:2018

PERMITTED USE

• The company excludes any contractual and extra contractual liability for damage caused to persons, animals or objects, by incorrect installation, setting and maintenance, improper use of the equipment, and the partial or superficial reading of the information contained in this manual.
• These units are built for the heating and/or cooling of water. Any other use not expressly authorised by the manufacturer is considered improper and therefore not allowed. The fluid to be used is exclusively water or a mixture of water and glycol in case of low water temperatures
• It is absolutely NOT allowed to connect the heated water supply from the UNIT directly to the taps of the domestic hot water circuit. This fluid is not intended for sanitary use and must not be ingested.
• All the work must be executed by skilled and qualified personnel, competent on the existing regulations in country of installation. The installation place and the water and electric circuit must be established by the plant designer and must take into account both technical requirements as well as any applicable local laws and specific authorisations.
• All the work must be executed by skilled and qualified personnel, competent on the existing regulations in country of installation.
• This appliance is intended to be used by expert or trained operators in shops, light industry and in factories, or for commercial use by non-expert personnel.
• The appliance may be used by children at least 8 years old and by persons with reduced physical, sensory or mental capabilities or without experience or the necessary knowledge as long as they are supervised or after they themselves have received instructions on the safe use of the appliance and understand the relevant dangers. Children must not play with the appliance. The cleaning and maintenance which the user is expected to carry out on the unit cannot be done by children without supervision.
• Direct interaction with the device by people with electrically controlled medical devices, such as pacemakers, is forbidden, as harmful interference may be created. It is recommended to keep adequate distance from unit installation, as indicated by the medical system used.
• Users of electrically controlled medical devices should exercise caution when interacting with the unit.
• Users of metallic prostheses should excercise caution when interacting with the unit.

GENERAL SAFETY GUIDELINES

Before starting any type of operation on the units, every operator must be perfectly familiar with the operation of the machine and its controls and must have read and understood all the information in this manual.
It is strictly forbidden to remove and/or to tamper with any safety device. Children or unassisted disabled persons are not allowed to use the appliance. Do not touch the appliance when barefoot or parts of the body are wet or damp. It is forbidden to perform any cleaning operation when the master switch is ‘ON’. It is forbidden to pull, detach or twist the appliance’s electric cables, even if unplugged.
Do not step on, sit down on and/or place any type of object on the appliance. Do not spray or pour water directly on the unit. Do not dispose of, abandon or leave within reach of children packaging materials (cardboard, staples, plastic bags, etc.) as they may represent a hazard.
Any routine or extraordinary maintenance operation must be carried out with the machine stopped and disconnected. Do not place your hands or introduce screwdrivers, spanners or any other tools on moving parts. The machine operator and maintenance personnel must receive suitable training for the performance of their tasks in safety Operators must know how to use personal protective equipment and the accident-prevention rules of national and international laws and regulations.

WORKERS’ HEALTH AND SAFETY
The European Union has issued some directives regarding the safety and health of workers, including: 89/391/CEE, 89/686/CEE, 2009/104/CE, 86/188/CEE and 77/576/CEE, and subsequent amendments which every employer is obliged to follow and have followed. We observe therefore that:
Do not tamper with or replace parts of the unit without the specific consent of the manufacturer. The manufacturer shall have no responsibility whatsoever in case of unauthorised operations.
Using components, consumables or spare parts that do not correspond to those recommended by the manufacturer and/or listed in this manual may be dangerous for the operators and/or damage the unit. The operator’s workplace has to be kept clean, tidy and clear of objects that may hinder free movement. Appropriate lighting of the work place shall be provided so as to allow the operator to carry out the required operations safely. Poor or excessive lighting can cause risks. Ensure that work places are always adequately ventilated and that the extraction systems are working, in good condition and in compliance with the requirements of the laws in force. In the design phase, the indications contained in UNI EN ISO 14738 regarding workstations on the machinery were followed and the lifting limits imposed by UNI ISO 11228-1 were evaluated. Make sure to maintain, during the installation and maintenance of the unit, a posture that does not cause fatigue. Check the weight, before moving any component.

• The unit works with R32 refrigerant, which is included in the list of greenhouse gases (GWP 675) which are subject to the requirements in EU regulation n. 517/2014 called “F-GAS” (mandatory in the European zone). Among the provisions of this regulation, it sets forth that operators working on systems running with greenhouse gases be in possession of a certification, issued or acknowledged by the competent authorities, attesting that they have passed a test authorising them to perform this work. In particular
• Up to 3kg total refrigerant in the appliance: category 2 certification.
• 3 kg and more total refrigerant in the appliance: category 1 certification.

The gaseous form of R32 refrigerant is heavier than air and if released into the environment, most of it tends to concentrate in poorly ventilated areas. Inhaling it can cause dizziness and sensations of suffocation and can develop lethal gas if in contact with naked flames or hot objects (see the refrigerant’s safety data sheet).
Pay attention to the fact that refrigerant fluids can be odourless

For any operation on the heat pump system:
Wear the appropriate PPE (specifically gloves and goggles). Make sure that the workplace is well ventilated. Do not work in closed environments or ditches with little air circulation. Do not operate on the refrigerant in the vicinity of hot parts or naked flames. Do not release the refrigerant into the environment and pay special attention to accidental leakage from pipes and/or fit-tings even after having emptied the plant. Make sure there is a fire extinguisher near the unit.

PERSONAL PROTECTIVE EQUIPMENT
When operating and servicing the units, the following personal protective equipment must be used:
Clothing: Maintenance technicians and operators must wear protective clothing that does not leave parts of the body uncovered, as during maintenance it is possible to come into contact with hot or sharp surfaces. Clothes that can become entangled or sucked in by air flows should be avoided.
Wear safety shoes with non-slip soles, especially in rooms with slippery floor.
Gloves: During maintenance or cleaning operations, appropriate protective gloves must be used.
Mask and goggles: Respiratory protection (mask) and eye protection (goggles) should be used during cleaning operations.

SAFETY SIGNS
The unit features the following safety signs, wich must be complied with:

REFRIGERANT SAFETY DATA SHEET

HAZARDS IDENTIFICATION
Main hazards:| Asphyxiation.
Specific hazards:| Quick evaporation could cause it to freeze.
FIRST AID MEASURES
General information:| Do not administer to people who are unconscious.
**Inhalation:| Immediately remove to fresh air. Use oxygen or artificial respiration as required. The use of adrenaline or similar drugs should be avoided.
Eye contact:| Carefully rinse with plenty of water for at least 15 minutes and get medical attention.
Skin contact:| Wash immediately with plenty of water for at least 15 minutes. Apply a sterile gauze. Immediately remove contaminated clothing.
FIRE FIGHTING MEASURES
Extinguishing media:| Water spray, dry powder.
Specific hazards:| Breakage or explosion of vessel.
****Specific methods:| 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
****Personal precautions:| Try to stop the leak. Evacuate personnel to safety areas. Ventilate appropriately. Eliminate the ignition sources. Use personal protective equipment.
Environmental precautions:| Try to stop the leak.
Cleaning methods:| Ventilate the area
HANDLING AND STORAGE
Handling: technical measures/precautions:| Allow efficient air exchange and/or suction the work environments.
Advice for safe use:| Do not breath in fumes or aerosol.
Storage:| Close carefully and store in a cool, dry and well ventilated area. Keep in original containers. Incompatible products: explosive, flammable materials, organic peroxide
EXPOSURE CONTROLS/PERSONAL PROTECTION
****Control parameters:| OEL – data not available.
DNEL: Derived no effect level (workers)
long-term – systemic effects, inhalation = 7035 mg/m3.
PNEC: Predicted no-effect concentration water (fresh water) = 0,142 mg/l aquatic, intermittent releases = 1,42 mg/l sediment, fresh water = 0,534 mg/kg dry weight
Respiratory protection:| Not required.
Eye protection:| Safety goggles.
Hand protection:| Latex gloves
Hygienic measures:| No smoking
PHYSICAL AND CHIMICAL PROPERTIES
Colour:| Colourless.
Odour:| Ethereal. Hard to perceive at low concentrations.
Boiling point:| -51,7 °C at atm press
Flash point:| 648 °C
Relative gas density (air=1) Relative liquid density (water=1)| 1,8
1,1
Solubility in water:| 280000 mg/l.
STABILITY AND REACTIVITY
Stability:| Stable under normal conditions.
Materials to avoid: Decomposition products hazardous:| Air, oxidizing agents, humidity. Under normal storage and use conditions, hazardous decomposition products should not be generated..
TOXICOLOGICAL INFORMATION
Acute toxicity: Local effects: Long term toxicity:| LD/LC50/inHALATION/4 hours/on rat = 1107000 mg/m3. No known effect.
No kown effect.
ENVIRONMENTAL INFORMATION
Global warming potential GWP (R744=1):| 675
Ozone Depletion Potential ODP (R11=1):| 0
Disposal consideration:**| Refer to the supplier’s gas retrieval program. Avoid direct release into the atmosphere.

SPECIFIC R32 GAS WARNINGS
The R32 refrigerant gas:

• is odourless;
• is flammable, but only if there are naked flame;
• it may cause an explosion, but only if a given concentration in air is reached.

It is a good practice to follow these guidelines:

• do not smoke near the unit;
• affix a no smoking sign near the unit;
• keep the premises where the unit is installed properly aerated;
• do not pierce or burn the unit;
• do not place the unit near ignition sources, such as naked flames, electric heaters etc.;
• every extraordinary maintenance or repair on the unit must be performed by skilled technicians or qualified personnel;
• a gas leak test must be performed after installation.

R32 GAS CHARGE
The procedures described below may only be performed by skilled technicians or qualified personnel:

• ensure the R32 is not contaminated by any other types of refrigerant;
• keep the gas cylinder in an upright position when charging;
• apply the appropriate label on the unit after charging;
• do not charge more refrigerant gas than needed;
• when charging is completed, perform leak tests before the operating test;
• once all the above operations have been completed, a second leak test should be performed.

R32 GAS DISPOSAL
The procedures described below may only be performed by skilled technicians or qualified personnel:
do not dispose of the gas in areas at risk of explosive mixtures forming with air The gas should be disposed of in an appropriate torch with backfiring stop device. Contact the supplier should you require operating instructions.

SAFETY RULES FOR R32 GAS TRANSPORT AND STORAGE
Before opening the unit’s packaging, ensure there are no gas leaks in the environment with an appropriate gas detector. Ensure there are no fire ignition sources near the unit. No smoking is allowed 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.

INSTALLATION

CAUTION: All the operation described below must be done by QUALIFIED PERSONNEL ONLY. Before any operation on the unit, make sure that power is disconnected. Also make sure that power cannot be accidentally switched back on until all the operations are over, by means of specific locks.

GENERAL
When installing or intervening on the chiller unit, it is necessary to strictly follow the rules listed in this manual, to observe all the indications on the unit and however to take all possible precautions. Failure to comply with the rules reported on this manual can create 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.
CAUTION: The units are designed for outdoor installation. The outside temperature, when the unit doesn’t operate, must never exceed 46°C. Beyond this value, the unit is no longer covered by the current regulations in the field of safety of pres-sure equipment.
CAUTION: The installation place must be without any fire risks. Therefore all the necessary measures should be adopted in order to prevent the risk of fire at the installation place. The appliance must not be placed near naked flames and 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 so as to allow free movement for repair and maintenance operations. The warranty does not cover costs for platforms or other lifting equipment needed for any interventions.
• The unit must be installed away from and not connected to any lightning towers or other objects/constructions-that may attract the discharge.

All the maintenance operations and tests must be done by QUALIFIED PERSONNEL ONLY. Before any operation on the unit, make sure that power is disconnected. Do not use equipment to speed up the defrost process or for cleaning except for those recommended by the manufacturer Do not perforate or burn.
CAUTION: There are some moving components inside the unit. Pay the utmost attention when operating in their vicinity, even if power is disconnected.
The heads and delivery pipe of the compressor are normally quite hot.
Be careful when working near the condensing coils. The aluminium fins are very sharp and can cause serious injuries.
After the maintenance operations, close the panels by fixing them with screws.

TRANSPORT AND STORAGE LIMIT TEMPERATURE

LIFTING AND HANDLING
The handling must be performed by qualified personnel, properly equipped with appropriate tools to the weight and the encumbrance of the unit, in compliance with safety regulations of accident preventing.

It is recommended:

1. check the weight on unit technical label or on table of tecnical data;
2. check moving the unit there are no disconnected paths, ramps, steps, doors that could affect the movement and damage the unit;
3. make sure the unit stands while moving;
4. Before handling the unit, check that the equipment is suitable for lifting and preserving the integrity of the unit;
5. check the unit center of gravity and align it with lifting point;
6. perform lifting only by one of the listed procedures;
7. Before starting handling make sure the unit is in stable equilibrium.

Lifting mode
Following lifting moes are allowed:

• forklift truck
• ropes/chains + sling bar

Make sure to tension the lifting ropes gradually and check their correct positioning.

POSITIONING AND MINIMUM TECHNICAL CLEARANCES
All models of the range are designed and constructed for outdoor installations. It is advisable to create an adequately sized support base for the unit. The units transmit a small amount of vibrations to the ground: it is none-the less advisable to apply vibration dampers between the base frame and support surface.
SUSPENDED INSTALLATION IS FORBIDDEN.
The support plane must have enough capacity to support the unit weight, which can be checked both on the technical label on the unit and on this technical manual under “Technical data” chapter. The support plane mustn’t be inclined to ensure the unit works properly and avoid a possible overturning. The support plane mustn’t be smooth, to avoid water/ice depoisit as potential sources of danger. 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, place the unit on a base raised from the ground by 20-30 cm, so as to prevent the formation of snow accumulations around the machine. It is recommended to ensure sufficient air exchange to dilute the R32 gas in case of accidental leakage, to avoid the formation of explosive atmospheres. For this reason, a minimum distance of 1 metre must be maintained from openings or wells, where the gas could accumulate. Installation of the unit under roofs of any kind, such as roofs, canopies and the like, should be avoided.
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. In this case, it is absolutely necessary to guarantee the minimum service spaces listed below.

Do not obstruct or cover the ventilation openings. 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.

We always invite you to make an environmental impact assessment based on the power and sound pressure data shown in chapter “Technical data” and the sound emission limits based on 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 in the proximity of workers according to D. LGS. 81/2008 Art. 189 and following.

DIMENSIONS

Model SHP M PLUS 021, SHP M PLUS 026

Dimensions and weights

Model| SHP M PLUS 021, SHP M PLUS 026
A – Lenght| mm| 1600
B – Depht| mm| 680
C – Height| mm| 1315
Shipping weight| kg| 250
Operating weight| kg| 240

IN/OUT: 1”M G
E: power supply input
IN/OUT: 1”1/4 M G
E: power supply input

Model SHP M PLUS 028, SHP M PLUS 032

Dimensions and weights

Model| SHP M PLUS 028, SHP M PLUS 032
A -Length| mm| 1600
B – Depth| mm| 680
C – Height| mm| 1315
Shipping weight| kg| 265
Operating weight| kg| 255

IN/OUT: 1”1/4 M G
E: power supply input

CENTRE OF GRAVITY AND DAMPERS LOCATION
In the following tables, we report the position of the centre of gravity of each machine, with reference to the dimensions shown in the image.

Models| Shipping weights [kg]| Operating weights [kg]| A [mm]| B [mm]| Xa [mm]| Yb [mm]
---|---|---|---|---|---|---
SHP M PLUS 021, 026| 250| 240| 1600| 680| 1040| 320
SHP M PLUS 028, 032| 265| 255| 1600| 680| 1035| 330

The ideal installation positions of the dampers for each type of machine are shown in the below images.

ACCESSING THE INNER PARTS

1. Remove the two access panels to the components compartment by removing the screws as shown in figure 1.
2. To access the power supply terminal block, remove panel A by unscrewing the screws as shown in figure 2.
3. To access the user terminal block, remove panel B by unscrewing the screws as shown in figure 2.
4. Insert the cables in the cable shot provided on the rear side of the machine to connect them to the system.
5. Close the electrical panel and the access panels to the machine components compartment using the screws previously removed.

The above operations must be carried out with the machine switched off and disconnected from the power supply (by means of a disconnecting switch provided by the installer).
These operations must be carried out by qualified personnel. On finishing the work, refit all the removed covers with all the screws provided and the seals (if fitted).

PLUMBING CONNECTIONS

The plumbing connections must be made in accordance with national and/or local regulations; pipes can be made of steel, galvanised steel or PVC. Pipes must be accurately sized according to the nominal 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 re-used 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 and dirt separator (installed on the return pipe) with metal mesh no larger than 1 mm. (obligatory to mantain the validity of the guarantee).
• Loading group and exhaust valve where necessary.

CAUTION: When sizing the pipes, make sure not to exceed the maximum pressure drop on plant side reported in the techni-cal data table (see useful head).

• Connect the pipes to their fittings always using the key to key method.

ATTENTION: Create a suitable drain for safety valve.
CAUTION: The installer is in charge of making sure that the expansion vessel is suited to the real capacity of the system.

• The return pipe from the system must be installed near the label “WATER INLET” otherwise the evaporator could freeze.
• It is mandatory to install a metal filter (with mesh no larger than 1 mm) and a dirt separator on the return pipe from the system labelled “WATER INLET”. If the flow switch is manipulated or altered, or if the metal filter and dirt separator are missing, the warranty will terminate immediately. The filter and dirt separator must be kept clean. Therefore after installing the unit, you must make sure that they are still clean and check them regularly.

All of the units leave the company supplied with flow switch (installed in factory). If the flow switch is altered or removed or if the water filter and dirt separator are missing from the unit, the guarantee will be void. Refer to the wiring diagram attached to the unit to connect the flow switch. Never jumper connections of the flow switch in the terminal block.
The heating system and the safety valves must comply with the requirements of standard EN 12828.

Features of the circuit water
To guarantee 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 μS/cm
Total hardness| 4,5 – 8,5 dH
Temperature| ˂ 65°C
Oxygen content| ˂ 0,1 ppm
Max glycol quantity| 40 %
Phosphates (PO4)| ˂ 2ppm
Manganese (Mn)| < 0,05 ppm
Iron (Fe)| < 0,3 ppm
Alkalinity (HCO3)| 70 – 300 ppm
Chloride ions (Cl-)| < 50 ppm
Sulphate ions (SO4)| < 50 ppm
Sulphide ions (S)| None
Ammonium ions (NH4)| None
Silica (SiO2)| < 30 ppm

Hydraulic diagram inside the unit
Herein below the hydraulic diagrams for connection to the unit

LEGEND

EV| 1| PLATE HEAT EXCHANGER| W-IN| | WATER INPUT
DV| 1| DISCHARGE VALVE| W-OUT| | WATER OUTPUT
RV| 1| RELIEF VALVE| P| 1| ELECTRONIC CIRCULATOR
TE IN| 1| WATER INLET TEMPERATURE PROBE- SONDA| AV| 1| AUTOMATIC AIR VENT VALVE
TE OUT| 1| USER OUTLET WATER TEMPERATURE PROBE| FC| 1| FLOW SWITCH
—| | Accessory installed on board

In each unit a safety valve with 6 bar opening pressure included all the same
ATTENTION: It is recommended to connect the safety valve vent in an appropriate conveyor / discharge.
Otherwise the discharged water could stagnate around the unit and become a source of danger due to slipping / falling.

Drainage system
The units all of them adopt drainage holes on the basement for the condensate draining which can leach from the pipes of hydraulic and refrig-erant circuits, and to discharge the generated water during defrosting cycles.

FOR THE HEAT PUMP UNITS, ESPECIALLY IN VERY COLD CLIMATE REGIONS, IT’S RECOMMENDED TO INSTALL ELEVATION SUPPORTS IN ORDER TO ALLOW ICE FORMATION UNDER THE UNIT WITHOUT DAMAGING IT BY FREEZING.
CAUTION: for heat pump units, in the event that the prepared ducting system is not used, a limited amount of water (possible ice in the winter period) from the condensate drainage system may be deposited in the vicinity of the unit, with consequent danger of slipping/falling.

Filling / Discharge of the plant
CAUTION: supervise all filling/top-up operations.

• before filling/topping up the system disconnect power to the units.
• the system must always be filled/topped up in controlled pressure conditions (1÷3 bar). Make sure that a pressure reducer and safety valve have been installed on the filling/top-up line.
• the water on the filling/top-up line must be appropriately pre-filtered from any impurities and suspended parti-cles. Make sure that a removable cartridge filter and dirt separator are installed on the line.
• regularly check and vent the air built up in the system.
• install an automatic air venting valve at the highest point of the system.

When it is required to top up the circuit or to adapt the glycol level, please use the service valve. Unscrew and remove the cap from the service valve (A) and connect a 14 or 12 mm pipe (inside diameter – check the valve model installed on your unit), connected to the water mains, to the hose connector and then drain the circuit by unscrewing the specific ring nut (B). After the end of the operation, retighten the ring nut (B) and screw the cap back on (A).In any case it is recommended to use an external valve to fill the system which can be set up by the installer.

If the unit must be completely drained, first close the manual inlet and outlet shutters (not supplied) and then disconnect the pipes on the water inlet and outlet so that the liquid in the unit can drain (to make this operation easier, it is advisable to install two external drain cocks between the unit and the manual shutters on the water inlet and outlet).

Service sleeves

The unit is fitted with an air venting valve to automatically remove air that has built up in the circuit, prevent-ing undesirable effects such as premature corrosion and wear, lower performance and low exchange output. The device also features a safety function because, in the event of exchanger breakdown, it allows the refrig-erant gas to escape outside, preventing it fro being conveyed to the internal terminals.
The valve can be kept in a closed position by closing the plug on the drain; by loosening the plug, the valve remains in open position and air is discharged automatically. If you notice a water leak, you must replace the component by unscrewing it with a spanner, as shown in the image below.

ELECTRICAL CONNECTIONS

Check that the power supply matches the unit’s electric nominal data (voltage, phases, frequency) displayed on the rating plate on the unit’s side panel. The electric power connections must be made in accordance to the wiring diagram enclosed with the unit and in conformity with national and international standards (providing general circuit breaker, residual current devices for each line, proper earthing of the plant, etc.).
CAUTION: Before starting any operation, make sure that the power supply is disconnected.

• Respect the minimum clearances to perform wiring.
• The installer is responsible for the disconnection system (e.g. general circuit breaker) upstream of the electrical connections of the unit.
• The supply voltage’s fluctuations cannot exceed ±10% of the nominal value. If this tolerance should not be re-spected, please contact our technical department. The power supply must comply with the limits mentioned, otherwise the warranty will expire immediately.
• If the supply cable is damaged, it must be replaced by qualified personnel, in order to prevent any risk.

ATTENTION: Any devices placed nearby can cause / suffer electromagnetic disturbances to/from the unit. Be aware of this risk at the installation site. It is recommended to electrically power the unit with an adequate line and protections and use an independent cable duct.
CAUTION: The remote control panel is connected to the chiller by 4 cables with a cross-section of 1.5 mm2. The power cables must be separate from the remote control cables. Maximum distance 50 metres.

• The remote control panel is connected to the chiller by 4 cables with a cross-section of 1.5 mm2. The power cables must be separate from the remote control cables. Maximum distance 50 metres.

Access to electric panel
The following is the procedure for accessing the electric panel.

1. Remove the two access panels to the components compartment by unscrewing the screws as shown in figure 1
2. To access the power supply terminal block, remove panel A by unscrewing the screws as shown in figure 2.
3. To access the user terminal block, remove panel B by unscrewing the screws as shown in figure 2.
4. Insert the cables in the grommets provided on the rear side of the machine to connect them to the system.
5. Close the electrical panel and the access panels to the machine components compartment using the screws previously removed.

The above-mentioned operations must be carried out with the machine off and power disconnected (by means of the specific disconnector applied by the installer). Operations carried out by qualified personnel. When the work is finished, close all of the removed covers applying the screws and seals (if included).

Power supply
The electrical wiring to the terminal blocks has to be done only by qualified personnel. Make sure to install an adequate ground connection, incomplete grounding can cause electric shock. The manufacturer cannot be held responsible for any damage caused by failure or ineffective earthing.
The power cables, electrical protections and line fuses must be sized in accordance with what is reported in the unit’s wiring diagram and in the electrical data contained in the technical characteristics table.
Use a dedicated power line, do not power the appliance through a line to which other users are connected. Fasten the power cables securely and make sure they do not come into contact with sharp corners. Use double insulated cables with copper wires. The ground connection must be carried out first during the connection phase, vice versa it must be removed last when the unit is disconnected. In the event of any loosening of the power cable, it must be ensured that the tension of the active conductors takes place before that of the ground wire.
A main switch or a disconnection device with adequate breaking capacity must be installed on the power supply line, which has a separation of the contacts in all the poles. The differential protection switch must be compatible with inverter appliances, it is recommended to install a type B differential switch, the installation of a different type switch could give rise to untimely trips. The following table shows the recommended cable sections for a maximum length of 30 m. In any case, depending on type of installation, the location and the length of the cables (be it less than or greater than 30 m), the electrical system designer will make an appropriate choice.

Power supply| Model| Recommended cable section (max length30 m)| Recommended tightening torque
---|---|---|---
400V / 3ph| SHP M PLUS 021| 5 x 6 mm2| L1/L2/L3: 3,4 Nm – N/PE: 1 Nm
400V / 3ph| SHP M PLUS 026| 5 x 6 mm2| L1/L2/L3: 3,4 Nm – N/PE: 1 Nm
400V / 3ph| SHP M PLUS 028| 5 x 6 mm2| L1/L2/L3: 3,4 Nm – N/PE: 1 Nm
400V / 3ph| SHP M PLUS 032| 5 x 6 mm2| L1/L2/L3: 3,4 Nm – N/PE: 1 Nm

The units comply with the electromagnetic compatibility specifications, however the designer of the electrical system must fulfil appropriate assessments to ensure the absence of interference.

User terminal block
The connection terminal block is located under the machine cover. For access, see the instructions. The terminal block must be connected respecting the notes below. The connections shown below are standard. Other connections are given in the MCO manual of the on-machine control (see “USER AND IN-STALLER CONFIGURATION TABLES”), according to the configurations adopted.
CAUTION: it is important to keep the high voltage cables separated from the very low voltage ones.

communication
XC-2.1| Modbus RTU – signal connection for remote keyboard
XC-1.1| Modbus RTU ground reference connection for remote keypad (GND)
X12-1| Remote keyboard power supply (12V, 50Hz, 500mA)|

Power supply output 12Vac, 50Hz

X12-2| Remote keyboard power supply (12V, 50Hz, 500mA)
XC-12.1/12.2| ACS probs (TE SAN1)| Analogic or digital input
XC-13.1/13.2| Plant remote probe (TE IMP1)| Analogic input
XC-14.1/14.2| Double set point (Q4)| Analogic input
XP-7.1/7.2| Domestic hot water valve outlet (VSAN1)| Changeover contact, single phase voltage 230Vac, 50Hz, 5A resistives, 1 A inductives.
XP-8.1/8.2| Double set point valve outlet (VDS1)| Changeover contact, single phase voltage 230Vac, 50Hz, 5A resistives, 1 A inductives.
XP-4.1/4.2| System remote resistance output| Changeover contact, single phase voltage 230Vac, 50Hz, 5A resistives, 1 A inductives.
XC-4.1/4.2| Remote summer/winter change input (to activate the function, see the relevant paragraph on the MCO manual)| Voltage free digital input
XC-3.1/3.2| Remote on/off input (close=unit on / open=unit off)| Voltage free digital input
XC-19.1| Input ground reference connection (GND)| Analogue voltage input 0-10V / ratiometric
XC-19.2| Voltage input connection 0-10V/ratiometric
XC-20.2| Connection for ratiometric input (+5V)

Terminal block

Terminal block GI

Type| Changeover contact, single-phase voltage| Changeover contact, single-phase voltage| Changeover contact, single-phase voltage| Changeover contact, single-phase voltage| Changeover contact, single-phase voltage
---|---|---|---|---|---
Connection| Compressor indication| Alarm indication| Block indication| Season indication| Defrost indication
Terminal| XP-10.1/10.2| XP-11.1/11.2| XP-12.1/12.2| XP-13.1/13.2| XP-10.1/10.2

Control logics
For further information on the control logics, please refer to the relative manual which can be requested from CAT or the manufacturer.

Fuses
Details on the type and nominal specifications of the fuses are set out on the machine’s data plate, on electrical schemes as well as on the fuses.

FUNCTIONAL DIAGRAMS

SHP M PLUS

LEGEND

INVC| 1| VARIABLE SPEED COMPRESSOR| SL| 1| LIQUID LINE
CO/EV| 1| FINNED BATTERY| YISV| 1| 4-WAY VALVE REVERSE CYCLE
EV/CO| 1| PLATE EXCHANGER| SB| | SUBCOOLING BYPASS LINE
EEV| 1| ELECTRONIC EXPANSION VALVE| SBSV| 1| BYPASS LINE SOLENOIDE VALVE
SV| | CHARGING ATTACHMENT| SG| 1| MOISTURE LIQUD INDICATOR
F| 1| FILTER DRIER| PEH TC| 1| HIGH PRESSURE TRANSDUCER
HC| 1| CRANKCASE RESISTENCE| PED TR| 1| LOW PRESSURE TRANSDUCER
AF| 1| AXIAL FAN| PSH| 1| HIGH-PRESSURE SWITCH
RD| | SUPPLY LINE| HKA| 1| HEAT EXCHANGER ANTIFREEZE RESISTOR
RL| | LIQUID LINE| TE SD| 1| SUCTION TEMPERATURE PROBE
RS| | SUCTION LINE| TE DT| 1| DISCHARGE TEMPERATURE PROBE
RS/RD| | SUCTION/DELIVERY LINE| TE DS| 1| TEMPERATURE PROBE (DS)
RD/RS| | SUPPLY/SUCTION LINE| TE EXT| 1| OUTDOOR AIR PROBE
BV| 1| SPHERE VALVE| TE PD| 1| DS WATER OUTLET TEMPERATURE PROB
DS| 1| DESUPERHEATER| DHW-IN| | DESUPERHEATER WATER INLET
P-DS| 1| DESUPERHEATER CIRCUIT CIRCULATOR| DHW-OUT| | DESUPERHEATER WATER OUTLET
CV| | NON-RETURN VALVE| W-IN| | WATER INLET
LR| 1| LIQUID RECEIVER| W-OUT| | WATER OUTLET
—| | ON-BOARD ACCESSORY|

STARTUP

Before start-up:

1. Check that the diagrams and manuals of the installed machine are available.
2. Check that the wiring and plumbing diagrams of the plant the machine is connected to are available.
3. Check that the shut-off valves of the water circuits are open.
4. Check that the water circuit was filled under pressure and the air vented.
5. Check that all the plumbing connections are installed correctly and that all the indications on the rating plates are complied with.
6. Make sure that measures have been taken to discharge condensate.
7. Check the electrical connection and correct fastening of all the terminals.
8. Check that the electrical connections have been made according to standards in force, including earthing.
9. Voltage must match that on the unit’s rating plate.
10. Make sure that the electric voltage is within the tolerance limits (±10%).
11. Check that the electric heaters of the compressors are properly powered.
12. Check that there are no gas leaks.
13. Before switching the unit on, check that all panels are positioned correctly and well-fixed with screws.

CAUTION: The unit must be connected to the electric mains and placed in STANDBY (powered on) by closing the master switch at least 12 hours before start-up. This will allow the heaters to adequately warm up the compressor crankcase (the heaters are powered automatically when the switch is closed). The heaters are working properly if after a few minutes the temperature of the compressor crankcase is 10-15°C higher than ambient temperature.

• Check that the weight of the pipes does not bear upon the machine structure.
• Never use the master switch to stop the unit temporarily. This must only be done to disconnect the unit from the power supply for long downtimes (e.g. seasonal stops etc.). Furthermore power is missing, the crankcase heaters will not be powered with the risk of breaking the compressors when the unit is switched on.
• Do not modify the electrical connections of the unit so as not to immediately terminate the warranty.
• Summer/winter operation must be selected at the start of the relative season. Frequent and sudden changes of this operation must be avoided so as not to damage the compressors.
• Upon initial installation and start-up, make sure that the machine works properly both in heating and cooling mode.

SWITCHING ON THE UNIT
To supply power to the machine, turn the external handle of the disconnector to ON (“I”). The unit display only switches on if the phase sequence is correct (inspection to be made when commissioning the unit). Wait at least 1 minute between switching the unit off and back on again.

INSTRUCTIONS FOR THE USER

Write down the unit’s identification data to be able to give it to the assistance centre when requesting an intervention.
The identification plate applied on the machine has all of the technical and performance data of the appliance. In case of tampering, removal or deterioration, ask the Technical Assistance Service for a copy. Tampering, removal and deterioration of the identification plate complicates installation, maintenance and request for spare parts.

We recommend keeping track of the interventions carried out on the unit so as to make any troubleshooting easier. In case of failure or malfunctioning:

• check the type of alarm triggered to report it to the assistance centre;
• contact an authorised assistance centre;
• if requested by the assistance centre, immediately deactivate the unit without resetting the alarm;
• request that original spare parts be used.

SHUTDOWNS FOR LONG PERIODS

The shutdown mode of the plant depends on the site of application and the time the plant is expected to be shut down. If the unit is equipped with the antifreeze system, even when off (system on unit at “off” position).
The anti-freeze system remains in operation if the continuity of electrical supply to the appliances is guaranteed. If the system is expected to remain idle for a long period of time, it is recommended to empty the liquid from the system unless there is an adequate amount of glycol.

To switch off the unit completely after having emptied the system:

• Switch off the unit setting the switch of each appliance at “OFF”.
• Close the water valves.
• Set the general residual current device at “OFF” (if installed upstream of the system).

If the temperature drops below zero there is serious danger of frost: provide a mixture of water and glycol in the system, otherwise drain the water system and the circuits of the heat pump.
CAUTION: even the transient operation, with water temperatures below +5°C is not guaranteed on the basis of the limits established. Before you turn the unit back on after a long idle period, make sure that the temperature of the mixture of water and glycol is higher than or at least equal to +5°C.
In the versions designed for low temperature operation (-8 ° C ÷ + 4 ° C), the concentration of glycol present and the relative freezing point must always be checked. Below this temperature it is forbidden to start the unit.

MAINTENANCE AND PERIODIC CHECKS

CAUTION: All the operations described in this chapter MUST BE CARRIED OUT BY QUALIFIED PERSONNEL ONLY. Before per-forming any intervention on the unit or accessing internal parts, make sure you have disconnected power.

• Before starting to operate, safety checks must be performed to ensure the combustion hazard is reduced to the minimum. The work must be undertaken according to a controlled procedure, to reduce to the minimum the risk of flam-mable gases or vapours while performing the work. The area must be checked with an appropriate refrigerant fluid detector before and during the work.

• Maintenance must only be carried out in weather conditions suitable for the operations envisaged.

• The use of a lock-valve is strongly recommended for maintenance (access valve to the refrigeration circuit) for coupling with hoses (whip), in order to avoid gas leaks and risk of burns.

• it is possible that a certain quantity of oil from the compressor is deposited in the pipes of the refrigeration circuit, especially by bends. In case of maintenance operations in which it is necessary to unsolder the pipes, it is strongly recommended to proceed with the cutting of the same and not with the desoldering with a torch, as the flame triggers any oil present.

• It is prohibited to fill the refrigerant circuits with a refrigerant other than that indicated on the identification plate. Using a different refrigerant can cause serious damage to the compressor.
  It is prohibited to use oils other than those indicated in this manual. Using a different oil can cause serious damage to the compressor.

• The heads and delivery pipe of the compressor are normally quite hot.

• Be careful when working near the condensing coils. The aluminium fins are very sharp and can cause serious injuries.

• Always use appropriate personal protective equipment.

• After maintenance operations, close the panels again, securing them with the fixing screws. Pay particular attention to the correct closing of the electric box. After the maintenance operations, pay attention to the correct tightening of the cable gland designed for the passage of the electric power cable.

• It is recommended to have specialised personnel perform periodical inspections and maintenance. The EU regulation n.517/2014 establishes that users must perform regular inspections on the plants, checking water tightness and eliminating any leaks as quickly as possible. Verify the mandatory nature and the documentation required in regulation n.517/2014 and its subsequent amendments or repeals.

The following are the recommended (R) and mandatory (M) activities for correct operation of the unit. The mandatory activities must be carried out by an authorised customer service which issues a corresponding certificate. Failure to comply with these activities will entail forfeiture of the warranty and could considerably shorten the service life of your product.

OPERATION| M / R| 1 month| 4 months| 6 months| 12 months
---|---|---|---|---|---
Filling the water circuit.| R| x| | |
Presence of bubbles in the water circuit.| R| x| | |
Check the proper working of the safety and control devices.| M| x| | |
Check that there are no oil leaks from the compressor.| R| x| | |
Check if there is a possible water leakage from the water circuit.| R| x| | |
Check that the flow switch works properly.| M| x| | |
Check that the crankcase heaters are powered and running.| R| x| | |
Clean the metal filters of the water circuit.| M| x| | |
Clean the finned coil with compressed air or water jet.| R| | x| |
Check that the electric terminals both inside the electric panel and in the terminal blocks of the compressor are well tightened.| M| | x| |
Tightening of plumbing connections.| R| | x| |
Check fixing and balancing of the fans.| R| | x| |
Clean the air filters in the electrical panel or replace them if necessary (when present).| M| | x| |
Correct electrical voltage and phase imbalance (without load and under load).| R| | | x|
Correct absorption.| R| | | x|
Check the refrigerant charge and eventual refrigerant leaks.| M| | | x|
Check the operating pressure, superheating and sub-cooling.| R| | | x|
Circulation pump efficiency.| R| | | x|
If the unit is to be out of service for a long period, drain the water from the pipes and the heat exchanger. This operation is indispensable if, during the shutdown period, ambient temperatures are expected to be below the freezing point of the fluid used.| M| | | x|
Check the presence of corrosion/ossidation| R| | | | x
Check panel fastening.| R| | | | x
Check the water quality (see chapter Characteristics of the system water) and the possi- ble concentration of glycol| M| | | x|
Check the pressure drop of any filter driers on the liquid line.| R| | | x|
Check the hydronic side safety valve according to EN 806-5| R| | | x|

CLEANING THE FINNED COIL
To correctly clean the coil, follow the instructions below:

• Remove any superficial filth. Debris such as leaves, fibres etc. must be removed without a vacuum cleaner (use a brush or another soft tool carefully avoiding scratching with metal or abrasive parts). If you use compressed air, pay attention to keep the air flow perpendicular to the surface of the coil in order not to bend the aluminium fins. Pay attention not to bend the fins with the nozzle of the compressed air lance.
• Rinse. Rinse with water. It is possible to use chemical substances (specific detergents for finned coils). Rinse the coils by letting the water run inside each individual passage of the fins, until they are perfectly clean. Pay attention to direct the water jet perpendicular to the surface of the coil in order not to bend the aluminium fins. Do not strike the coil with the water hose. Apply your thumb at the end of the hose to increase the pressure of the water jet instead of using specific nozzles which could damage the coil.

Cleaning the filled coil treated with the anti-corrosion method
The anti-corrosion treatment applied to the finned coils (available as an alternative to the standard coils) guarantees protection against aggressive atmospheres. The frequency of cleaning depends on the environmental conditions and is left to the common sense of the maintenance staff. When oxidizing dust or grease particles are observed on the battery surface, cleaning is recommended. In general, in a slightly polluted atmosphere, it is recommended to carry out the cleaning treatment every three months. Washing should be carried out with preferably hot water (40-60 °C) and detergent with neutral pH, while rinsing is carried out with abundant fresh water (50 l / m2). If the maintenance staff observes a lack of protective cover on the edge of the fins, it is necessary to contact the nearest service center to
proceed with a new application of the cover and completely restore the protection against corrosion.
CAUTION: Do not clean the coil using high-pressure cleaners so as not to apply excessive pressure which could cause irreparable damage. Damage caused by cleaning with unsuitable chemical substances or excessively high water pressure will not be recognised under warranty.

• The aluminium fins are thin and sharp. Pay the utmost attention and use appropriate PPE to avoid cuts and abra-sions. Cover your eyes and face appropriately to avoid squirting water and filth while blowing. Wear waterproof shoes or boots and clothing covering your entire body.
• For units installed in an aggressive atmosphere with a high rate of fouling, cleaning of the coil should be part of the routine maintenance programme. On this type of installation, all dust and particles deposited on the batteries must be removed as soon as possible by periodic cleaning in accordance with the above instructions.

CLEANING OF EXTERNAL SURFACES
The sheets of the outer casing must be properly cleaned to avoid the accumulation of dust / dirt, preventing the onset of corrosion. The painting ensures resistance to atmospheric agents but it is good practice to make sure to remove any dirt present, cleaning the surfaces with neutral detergent and water, especially if the unit is installed in places with an aggressive atmosphere (high level of pollution, salt , etc).

EXTRAORDINARY MAINTENCE
All extraordinary maintenance jobs must be carried out by an authorised assistance centre. Some extraordinary maintenance works may involve the replacement of broken components, which may have significant mass. Below is the list of components (standard and optional) and the approximate weight for each piece (take into consideration that any residues of oil, liquid gas, water can increase the weight). Consult the table before the maintenance phase (or refer to the label of the component itself) and choose the equipment / posture most suitable for the work to be carried out taking into account the load limits imposed by the technical standards and the state of health and ability of the worker himself.

DECOMMISSIONING

Once the unit has reached the end of its life cycle and needs to be replaced, the following operations are recommended:

• the refrigerant has to be recovered by trained personnel and sent to proper collection centres; according to the procedures indicated in Regulation No. 517/2014 on fluorinated greenhouse gases;
• any antifreeze additives in the water circuit must be recovered and disposed of properly;
• the compressors’ lubricating oil has to be collected and sent to proper collection centres;
• the structure and the different components, if unusable, must be scrapped and divided according to their nature; there is especially a good amount of copper and aluminium in the machine.

These operations allow easy material recovery and the recycling process, thus reducing the environmental impact in accordance with the provisions of Directive 2012/19 / EU on waste electrical and electronic equipment (RAEE). The user is responsible for the proper disposal of this product, according to national regulations in the country of destination of the appliance. For more information you should contact the Installation Company or local competent authority. An incorrect decommissioning of the appliance may create serious environmental damage and endanger people’s safety. Therefore, it is recommended that the unit be disposed only by authorised persons with technical training who have attend-ed training courses acknowledged by the competent authorities. It is required to follow the same precautions described in the previous paragraphs. Pay special attention during disposal of the refrigerant gas. The illegal disposal of the product by the end user leads to the application of the penalties in accordance with the law in the country where the disposal takes place.
The crossed-out bin symbol applied on the appliance indicates that the product, at the end of its useful life, must be collected separately from other solid/municipal waste.
The units are manufactured in accordance with the EC directive on waste of electric/electronic equipment and the harmful effects of incorrect disposal are provided in the user/installer manual. The manufacturing company or its importer/retailer is available to respond to any requests for additional information.

RESIDUAL RISK

The residual risks related to handling, installation and normal operation of the unit are shown below. Any failure by the user and installer to com-ply with the instructions / indications given in the manual (for which the references are given in the table) entails the persistence of these risks, which cannot be eliminated by the manufacturer, who has already adopted all the necessary design measures because each risk is minimized.

Danger| Indication / Instruction| Residual risk| User / Activity
---|---|---|---
Operator| User
Transport phase| Installation phase| Maintenance phase| Unit interaction| Normal unit operation
Mechanical: crushing caused by the possible instability of the unit during handling| The procedures for correct unit handling and installation are indicated on the user-installer manual under chapter 5, with in- dication of the center of gravity, of the lifting points and equip- ment. Protection devices use is also recommended as required by current regulations.| Failure by the installer to comply with the installation procedures.| X| X| | |
Mechanical: crushing caused by the possible instability of the unit.| The procedures for proper unit installation are indicated on user-installer manual under chapter 5.| Failure by the installer to comply with the installation procedures.| |

X

|

X

| |
Mechanical: Cutting / sectioning / shearing caused by the fan not protected against accidental contacts| The user-installer manual under chapter 9 contains specific warn- ings, also relating to the routine

maintenance phases.

| Removal of the protection grid by the user or maintenance technician.| | | X| X|
Entanglement caused by the fan not protected against accidental contacts| The user-installer manual under chapter 9 contains specific warn- ings, also relating to the routine maintenance phases.| Removal of the protection grid by the user or maintenance technician.| | | X| X|
Mechanical: cutting / abrasion due to contact with the heat exchange coil| The user-installer manual under chapter 9 contains specific warnings to be taken into consideration when working near the battery.| Failure to observe the warnings in the manual and on the label.| | | X| X|
Mechanical: slipping / falling caused by ice / water near the unit as a result of water leaks| In the user-installer manual under paragraph 5.8 is recom- mended to pay attention to the conveyance of the safety valve and in paragraph 5.4 there are indications regarding the surface on which the unit rests. During maintenance, the use of PPE and the possible removal of all water residues near the machine after intervention is recommended.| Failure to comply with the in- structions given in the manual.| | | X| X|
Mechanical: cut / abrasion caused by the presence of edges on the external casing of the ma- chine and / or screws protruding both outside and inside the unit| The correct maintenance procedures are indicated in the user-installer manual under chap- ter 9. Paragraph 4.2 recommends the use of the necessary personal protective equipment.| Failure to comply with the proce- dures and / or failure to use PPE by the maintenance technician.| | | X| X|
---|---|---|---|---|---|---|---
Mechanical: projection of parts or fluids caused by exceeding the operating pressure limits.| The correct maintenance procedures are indicated in the user-installer manual under chapter 9. Paragraph 4.2 recommends the use of the necessary personal protective equipment.| Simultaneous damage to both types of protection devices.| | | X| X|
Electrical: electrocution / shock / burn caused by contact with live parts| The safety measures to be taken in case of maintenance, cleaning or checking of the unit are
indicated in the user-installer manual under chapter 9. Any intervention must only be carried out by qualified personnel and with themachine switched off.| Failure to comply with the
procedures by the maintenance technician or irresponsible behavior by the user.| | | X| X|
Electrical: effects on medical implants (pacemakers) caused by electromagnetic phenomena| The user-installer manual in chapter 3 states the prohibition of direct interaction with the unit by people with electrically controlled medical devices, such as pacemakers. It is
recommended to keep a distance from the installation site of the unit as indicated by the medical system used.| Failure to comply with the
instructions given in the manual.| | | X| X|
Electrical: Fire causes short circuit or electric arc| The correct installation
procedures are indicated in the user-in- staller manual under chapter 5. In case of maintenance, the use of the necessary personal protective equipment is recommended.| The possibility of triggering can- not be eliminated but its
probability of occurrence is reduced. With the measures taken, the spread of the fire is reduced.| | | X| X|
Electrical: projection of
particles and emission of harmful chemicals as a result of electrical overload| Chapter 9 in the user-installer manual indicates that
maintenance must be carried out with machine off.| Failure to comply with the
instructions given in the manual.| | | X| X|
Thermic: burning / scalding from contact with hot surfaces| The user-installer manual in chapter 9 indicates the safety measures to be adopted in case of maintenance, cleaning or control of the unit and the personal protective equipment to be equipped.| Failure to comply with the
procedures and / or failure to use PPE by the maintenance technician.| | | X| X|
Caused by noise: Discomfort caused by the noise of the unit during operation| In the user-installer manual in chapter 5 suspended installation is prohibited and an environmental impact assessment is requested based on the installation area of the unit, even in the case of installation close to workers.| Failure to observe the actions recommended in the manual and the study of the environmental impact.| | | | | X
Cause by vibration: Discomfort caused by unit vibrations during operation| In the user-installer manual under chapter 5 suspended installation is prohibited and the use of anti-vibration mounts is recommended.| Failure to observe the actions recommended in the manual and the study of the environmental impact.| | | | | X
Caused by radiation: electro- magnetic radiation that the unit generates during operation|

–

| No one.| | | | | X
Generated by materials / sub- stances: infections caused by bacteria potentially present in the carrier fluid (technical water)| The use of personal protective equipment is recommended in the user-installer manual under paragraph 4.2. The safety data sheet for the refrigerant (para- graph 4.4) and specific warnings (paragraph 4.5) are also shown.| Failure to comply with the procedures by the maintenance technician.| | | X| X|
Generated by materials / sub- stances: fire / explosion causes gas classified as slightly
flammable| The user-installer manual under chapter 5 contains specific indications about unit installation place and protection devices.| Failure to comply with the indications relating to the place of installation and adequate maintenance procedures.| | | X| | X
---|---|---|---|---|---|---|---
Generated by materials / sub- stances: infections caused by bacteria potentially present in the

carrier fluid (technical water)

| The permitted uses of the unit are listed in the user-installer manual under chapter 3.| Failure to comply with the
instructions given in the manual.| | | X| | X
Generated by materials / substances: burn caused by the presence of oil inside the refriger- ation circuit, triggered by a flame welding torch| The use of personal protective equipment is recommended in the user-installer manual under paragraph 4.2. Under chapter 9 it is advisable, in the case of maintenance that involves desoldering the tubes, to proceed with cutting them, as the flame of the torch for desoldering triggers any oil present.| Failure to comply with the
instructions given in the manual.| | | X| |
Generated by materials / substances: burn / scald from escaping refrigerant| The safety measures to be adopt- ed in case of maintenance, clean- ing or control of the unit and the personal protective equipment to be equipped are indicated in the user-installer manual under

chapter 9.

| Failure to comply with the
instructions given in the manual.| | | X| | X
Generated by materials / substances: pollution due to inappropriate disposal| The instructions for correct
disposal are given in the user-installer manual under chapter 10.| Failure to comply with the
instructions given in the manual.| | | | |
Ergonomic: fatigue / musculoskel- etal disorders caused by exertion during maintenance / installation| Under paragraph 4.1, the us- er-installer manual recommends compliance with current
regulations (international and local) regarding workers health and safety. During maintenance, it is advisable to keep a posture that does not cause fatigue and to check the weight of the compo- nent before proceeding with its handling (paragraph 9.3).| Failure to comply with the
instructions given in the manual.| | X| X| |
Generated by unit use
environment: Slipping / falling caused by ice / water near the unit due to condensate drain / defrost| Under paragraph 5.8.5 the user-installer manual indicates about condensate drain system, recommending that you pay
attention to the danger of slipping.| Failure to comply with the
instructions given in the manual.| | | X| X|
Generated by unit use environ- ment: unexpected events as a result of malfunctions due to water / snow / humidity.| In the user-installer manual un- der chapter 9 it is recommended to pay attention to the correct tightening of the cable gland designed for the passage of the electric power cable and to the reassembly of all the sheets, in particular those of the electrical panel, in order to maintain the degree of declared protection.| Failure to comply with the procedures by the maintenance technician.| | | X| X|
Generated by unit use environ- ment: lightning that can poten- tially hit the unit| In the user-installer manual un- der chapter 9 it is recommended to carry out maintenance only in weather conditions suitable for the operations envisaged. It is also indicated that the installation site must be sufficiently far from lightning rods or objects that could attract the lightning (par. 5.3). The unit must be electrically connected to a system that complies with the regulations in force.| Failure to comply with the
instructions given in the manual.| | | X| X|
Generated by unit use environ- ment: electromagnetic distur- bances caused by interference between devices placed near the machine and the machine itself.| In the user-installer manual under paragraph 5.9 is recom- mended to power the unit via a dedicated line and protections. It is also recommended to use an independent cable duct in order to remove the possibility of interaction with other devices.| Failure to comply with the recommendations regarding the electrical system.| | | | | X
---|---|---|---|---|---|---|---
Generated by unit use
environment: possibility of breakage of components / supports caused by corrosion and oxidation| The user-installer manual under chapter 9 contains specific warnings on maintenance and cleaning to be carried out on the surfaces of the sheets and heat exchange coils. The technical bulletin provides advice on the treatments to choose based on the environmental conditions.| Failure to comply with cleaning and maintenance and / or
incorrect assessment of the
atmospheric agents that characterize the installation site.| | | X| X|

TECHNICAL DATA

TECHNICAL SHEET SHP M PLUS
Performance reffering to the following conditins, according to standards 14511:2018:

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 b.s. 6°C b.u.; in/out water temperature 30/35°C.
4. Heating: outdoor air temperature 7°C b.s. 6°C b.u.; in/out water temperature 40/45°C.
5. Cooling: in/out water temperature 7/12°C.
6. Heating: medium cliatic conditions; Tbiv=-7°C; in/ out water temperature 30/35°C.
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 power: heating mode condition (3) according to EN 12102-1:2013; value determined on the basis of measurements made in accordance with UNI EN ISO 9614-1.
10. Cooling BT version: outdoor air temperature 35°C; in/out water temperature -3/-8°C. Fluid treated with 35% ethylene glycol.
11. Sound power level: heating mode at partial load according to annex A of EN 12102:2017; value determined on the basis of measurements carried out in accordance with UNI EN ISO 9614-1, in compliance with the requirements of Eurovent and Heat Pump Key mark certification.(*) activating the maximum Hz function.

N.B. performance data are indicative and are subject to change. Furthermore, the output declared in points (1), (2), (3) and (4) refer to instan-taneous power according to UNI EN 14511. The figure declared in points (5) and (6) is determined according to UNI EN 14825.

FW68S or equiv.
Refrigerant oil (quantity)| L| 1,5| 1,5| 1,5| 1,5
Refrigerant circuits| | 1| 1| 1| 1
Refrigerant| Type| | R32| R32| R32| R32
Refrigerant charge (7)| kg| 4,3| 4,3| 5,1| 5,1
Amount of refrigerant in equivalent CO2 tonnes (7)| ton| 2,90| 2,90| 3,44| 3,44
Design pressure (high/low) heat pump mode| bar| 42,8/1,3| 42,8/1,3| 42,8/1,3| 42,8/1,3
Design pressure (high/low) chiller mode| bar| 42,8/3,5| 42,8/3,5| 42,8/3,5| 42,8/3,5
External zone fans| Type| | Motor DC Brushless
Number| | 1| 1| 1| 1
Nominal power (1)| kW| 0,26| 0,26| 0,50| 0,62
Maximum power input| kW| 0,83| 0,83| 0,83| 0,83
Maximum current input| A| 1,45| 1,45| 1,45| 1,45
Nominal air flow rate (1)| m3/h| 10769| 10847| 12209| 13202

Internal heat exchan- ger

| Type of internal heat exchanger| | Plate
N° internal heat exchangers| | 1| 1| 1| 1
Water content| L| 1,7| 1,7| 2,1| 2,1
Hydraulic circuit| Useful head (1)| kPa| 90,0| 86,5| 81,4| 74,7
Water content of hydronic circuit| L| 2,4| 2,4| 3,4| 3,4
Maximum pressure hydronic kit (safety valve calibration)| bar| 6| 6| 6| 6
Hydraulic connections| inch| 1″M| 1″M| 1″1/4 M| 1″1/4 M
Minimum water capacity (8)| L| 110| 110| 110| 110
Maximum circulator power| kW| 0,31| 0,31| 0,31| 0,31
Max. circulator current input| A| 1,37| 1,37| 1,37| 1,37
Circulator Energy Efficiency Index (EEI)| | ≤ 0,23| ≤ 0,23| ≤ 0,23| ≤ 0,23
Noise level| Sound power level Lw (9)| dB(A)| 72| 74| 75| 76
Sound power level Lw (11)| dB(A)| 65| 65| 67| 67
Electrical data| Power supply| | 400V/3P+N+T/50Hz
Maximum power input| kW| 12,3| 12,3| 14,7| 14,7
Maximum current input| A| 22,9| 22,9| 26,8| 26,8
Maximum power input with antifreeze kit| kW| 12,5| 12,5| 14,8| 14,8
Maximum current input with antifreeze kit| A| 23,3| 23,3| 27,1| 27,1

UNIT AND AUXILIARY ELECTRICAL DATA

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.

OPERATING LIMITS

EVAPORATOR WATER FLOW RATE
he 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 flow switch 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).

Minimum water flow to be assured in chiller mode (condition (1) technical sheet) [l/s]| 0,529| 0,558| 0,723| 0,776
Maximum water flow to be assured in chiller mode (condition (1) technical sheet) [l/s]| 1,41| 1,49| 1,93| 2,07
Minimum flow switch water flow rate [l/s]| 0,445| 0,445| 0,528| 0,528
Maximum flow switch water flow rate [l/s]| 0,477| 0,477| 0,588| 0,588

• When the flow rate drops below the indicated limit (flow switch minimum water flow rate) the flow switch issues an alarm, which may be reset only upon reaching the maximum indicated flow rate.

COLD WATER PRODUCTION (SUMMER MODE)
A minimum temperature of 5°C is allowed at the evaporator outlet for standard units. For BT units (low temperature) minimum temperature is -8°C. In this case glycol water must be used. A maximum temperature of 22°C can be maintained at the evaporator outlet in steady-state oper-ation.

HOT WATER PRODUCTION (SUMMER MODE)
When the system has reached steady state, the water inlet temperature must not drop below 25°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 60°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.

AMBIENT AIR TEMPERATURE AND SUMMERISED TABLE
The units are designed and built to operate in summer mode, with condensation control, at outdoor air temperatures between -10°C and 48°C. I heat pup mode, the allowed temperature range of the outdoor air is from -20°C to +35°C depending on the outlet water temperature as shown in table below.

Operating limits

Water chiller mode

Air source temprature| Minimum -15°C| Maximum 48°C
Water outlet temperature standard version| Minimum 5°C| Maximum 22°C
Water outlet temperature LV version| Minimum -8°C| Maximum 22°C
Heat pump mode

Air source temperature| Minimum -20°C| Maximum 35°C
Outlet water temperature| Minimum 25°C| Maximum 60°C
Heat pump mode for domestic hot water

Air source temperature with water at maximum 44°C| Minimum -20°C| Maximum40°C
Heat pump mode for domestic hot water

Air source temperature with water at maximum 60°C| Minimum-7°C| Maximum 26°C
Outlet water temperature| Minimum 25°C| Maximum 60°C

The following are the graphical operating limits for air-conditioning and domestic hot water production.

HEAT PUMP MODE

CHILLER MODE

DOMESTIC HOT WATER MODE

USER INTERFACE – CONTROLLER

The unit includes a display placed underneath a hinged polycarbonate transparent door with a protection rating of IP67. The interface has a part with variable text and a series of icons identifying operation of the unit as shown in the table below.

Fonderie Sime S.p.A – Via Garbo, 27 – 37045 Legnago (Vr)

• Tel. +39 0442 631111
• Fax +39 0442 631292
• Website: www.sime.it

References

• Sime: heating systems

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