Accorroni HPE 25 Manual

TECHNICAL INFORMATION
HPE 25÷70 - HPE LT 25÷50 INVERTER
Air / water inverter heat pumps
with axial fans and steam injection versions
HPE 25÷70 - HPE LT 25÷50
INVERTER

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CE CONFORMITY DECLARATION
DICHIARAZIONE DICONFORMITÁ CE
The company A2B ACCORRONI E.G.– Via Ancona, 37 – Osimo (AN) - Italy
DECLARES
that the unit :
che la macchina
Definition :
Definizione :
Industrial inverter air/water heat pump with axial fan / Pompa di
calore industriale aria/acqua inverter con ventilatore assiale
Industrial inverter air/water heat pump with vapour injection and
axial fan / Pompa di calore industriale aria/acqua inverter con
iniezione di vapore e ventilatore assiale
Model N°:
N° modello:
HPE INVERTER 25/35/50/50F/60/70
HPE INVERTER LT 25/35/50
Serie N°:
N° di serie:
MEETS THE REQUIREMENTS OF DIRECTIVE 2006/42/CE
È CONFORME AI REQUISITI DELLA DIRETTIVA 2006/42/CE
1. The unit is in CAT. I, so it’s free from the application of Directive 2014/68/UE (Reference to Art. I, paragraph 2, point f)
L’attrezzatura a pressione rientra nella CAT. I. L’unità è quindi esente dall’applicazione della normativa PED 2014/68/UE (Riferimento Art. I, paragrafo 2 punto f).
2. Harmonized standards applied to designing and manufacture: UNI EN 378-1, UNI EN378-2, UNI EN 12735-1
Norme armonizzate applicate alla progettazione ed alla costruzione: UNI EN 378-1, UNI EN378-2, UNI EN 12735-1
3. Others European Directives and harmonized standards applied to the equipment: 2014/35/UE, 2014/30/UE, 2011/65/UE, 2012/19/UE, CEI EN 60204-1, UNI EN
ISO 12100, UNI EN ISO 13857, CEI EN 61000-6-3, CEI EN 61000-6-2
Eventuali altre Direttive Europee e norme armonizzate applicate all’attrezzatura: 2014/35/UE, 2014/30/UE, 2011/65/UE, 2012/19/UE, CEI EN 60204-1, UNI EN ISO
12100, UNI EN ISO 13857, CEI EN 61000-6-3, CEI EN 61000-6-2
Osimo,Settembre/September 2018
A2B ACCORRONI E.G.

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INDEX
1PURPOSES AND CONTENTS OF THE MANUAL......................................................................................................................... 5
1.1 CONSERVATION OF THE MANUAL.......................................................................................................................................... 5
1.2 GRAPHIC SYMBOLS................................................................................................................................................................. 5
2SAFETY LAWS ......................................................................................................................................................................... 5
3PERMITTED USES ................................................................................................................................................................... 5
4GENERAL SAFETY GUIDELINES................................................................................................................................................ 6
4.1 WORKERS’ HEALTH AND SAFETY ............................................................................................................................................ 6
4.2 PERSONAL SAFETY EQUIPMENTS ........................................................................................................................................... 6
4.3 SAFETY SYMBOLS ................................................................................................................................................................... 6
4.4 REFRIGERANT SAFETY DATA SHEET........................................................................................................................................ 7
5TECHNICAL CHARACTERISTICS................................................................................................................................................ 8
5.1 FRAME.................................................................................................................................................................................... 8
5.2 REFRIGERANT CIRCUIT ........................................................................................................................................................... 8
5.3 COMPRESSORS....................................................................................................................................................................... 8
5.4 AIR-SIDE EXCHANGER............................................................................................................................................................. 8
5.5 FAN MOTOR ........................................................................................................................................................................... 8
5.6 USER-SIDE HEAT EXCHANGER ................................................................................................................................................ 8
5.7 ELECTRICAL CONTROL PANEL................................................................................................................................................. 8
5.8 CONTROL SYSTEM .................................................................................................................................................................. 8
5.9 CONTROL AND PROTECTIONDEVICES.................................................................................................................................... 8
5.10 HYDRAULIC CIRCUIT ............................................................................................................................................................... 9
5.11 FAN SPEED CONTROL ............................................................................................................................................................. 9
5.12 ENHANCED VAPOUR INJECTION (EVI) TECNOLOGY................................................................................................................ 9
6AVAILABLE VERSIONS WITH SIZES AND ACCESSORIES.......................................................................................................... 10
6.1 OPTIONAL ACCESSORIES ...................................................................................................................................................... 12
7INSTALLATION...................................................................................................................................................................... 13
7.1 GENERALITY ......................................................................................................................................................................... 13
7.2 LIFTING AND HANDLING....................................................................................................................................................... 14
7.3 LOCATION AND MINIMUM TECHNICAL CLEARANCES .......................................................................................................... 14
7.4 DIMENSIONS ........................................................................................................................................................................ 15
7.5 HYDRAULIC CONNECTIONS .................................................................................................................................................. 15
7.5.1 Characteristics of water of the plant circuit ................................................................................................................. 16
7.5.2 Hydraulic circuit type.................................................................................................................................................... 16
7.5.3 Handbook ..................................................................................................................................................................... 17
7.5.4 Hydraulic circuit............................................................................................................................................................ 17
7.5.5 Drainage connection .................................................................................................................................................... 17
7.5.6 Plant circuit loading...................................................................................................................................................... 17
7.5.7 Plant drainage system.................................................................................................................................................. 17
7.6 REFRIGERANT DIAGRAMS .................................................................................................................................................... 18
7.6.1 Refrigerant diagram of HPEINV.25 and HPE 35 models ............................................................................................ 18
7.6.2 Refrigerant circuit ofHPE INV.50 model ...................................................................................................................... 18
7.6.3 Refrigerant diagram of the model HPE 50, HPE 60 and HPE 70 ................................................................................... 19
7.6.4 Refrigerant circuit ofHPE 50F model ........................................................................................................................... 19
7.6.5 Refrigerant circuit of i-HP-LT 0125 model .................................................................................................................... 20
7.6.6 Refrigerant diagram of “HPE LT 35” and “ HPE LT 50” models .................................................................................... 20
7.7 ELECTRICAL CONNECTIONS.................................................................................................................................................. 20
7.7.1 Access to the electrical panel ....................................................................................................................................... 21
7.7.2 Power supply’s terminal block...................................................................................................................................... 23
7.7.3 User’s terminal block.................................................................................................................................................... 24
7.7.4 PM Module phase protection ....................................................................................................................................... 24
7.7.5 Plant management optional module terminal block.................................................................................................... 24
7.7.6 CONTROL LOGICS.......................................................................................................................................................... 25
7.7.7 Wiring diagrams........................................................................................................................................................... 25
8START UP ............................................................................................................................................................................. 25

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8.1 POWER-ON OF THE UNIT ..................................................................................................................................................... 26
9INDICATIONS FOR THE USER.................................................................................................................................................26
10 SHUTDOWNS FOR LONG PERIODS ....................................................................................................................................26
11 MAINTENANCE AND PERIODICAL CONTROLS....................................................................................................................26
11.1 CLEANING OF THE FINNED CONDENSER .............................................................................................................................. 27
11.2 EXTRAORDINARY MAINTENANCE ........................................................................................................................................ 27
11.3 ENVIRONMENTAL PROTECTION........................................................................................................................................... 27
12 DISPOSAL OF THE UNIT .....................................................................................................................................................27
12.1 RESIDUAL RISKS ........................................................................................................................................................................ 28
13 TECHNICAL DATA ..............................................................................................................................................................29
13.1 STANDARD VERSION ............................................................................................................................................................ 29
13.2 LT VERSION .......................................................................................................................................................................... 31
14 ELECTRIC DATA OF THE UNIT AND AUXILIARIES ................................................................................................................32
15 AVAILABLE HEAD PRESSURE OF THE UNIT WITH INTEGRATED CIRCULATOR .....................................................................32
16 CIRCULATOR’S CURVES .....................................................................................................................................................33
16.1 MODELS HPE25 -35 ............................................................................................................................................................ 33
16.2 MODEL HPE50 -50F............................................................................................................................................................ 33
16.3 MODEL HPE60 ..................................................................................................................................................................... 34
16.4 MOD. HPE60 &HPE70 ........................................................................................................................................................ 34
16.5 CIRCULATOR CHARACTERISTICS........................................................................................................................................... 34
17 HEAD LOSS CURVES OF THE HYDRONIC CIRCUIT ...............................................................................................................34
18 CHARACTERISTIC CURVE OF THE CONTROL VALVE FOR UNIT IN PARALLEL .......................................................................35
19 ACCESSORIES TO REDUCE THE NOISE LEVEL......................................................................................................................35
19.1 SL.......................................................................................................................................................................................... 35
19.2 SSL........................................................................................................................................................................................ 36
20 OPERATING LIMITS ...........................................................................................................................................................36
20.1 EVAPORATOR WATER FLOW RATE....................................................................................................................................... 36
20.2 COLD WATER TEMPERATURE (SUMMER OPERATION) ........................................................................................................ 36
20.3 HOT WATER TEMPERATURE (WINTEROPERATION) ............................................................................................................ 36
20.4 AMBIENT AIR TEMPERATURE............................................................................................................................................... 37
21 CORRECTION FACTORS FOR USE OF GLYCOL .....................................................................................................................38

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The manualof “HPE INVERTER” units collects all the necessary information for the better useofthe appliance underthe
operator’s safety conditions which meets the requirements listed inthe 2006/42/CE Equipment Directive and following
amendments.
1PURPOSES AND CONTENTS OF THE MANUAL
This manual provides the basic information as for the selection, installation, operation and maintenance ofi-HPunits. It
isaddressed to the installer and the user ofthe appliance and it includes the necessary indications allowing the user to operate
the unit efficiently, even without any previous specific knowledge of it.
The manual describes the characteristics of the appliance at the time of its marketing;therefore, it must be considered adequate
respecting the state of the art interms ofpotentiality, ergonomics, safety and functionality.
The company introduces also technological improvements and is notconstrained to update the manuals for previous versions
ofappliances that could not becompatible. So make sure to use, for the installed unit, the supplied manual.
It’s recommended that, the user must follow the instructions contained in this booklet, especially those concerning the safety and
routine maintenance.
1.1 CONSERVATION OFTHE MANUAL
The manual has to be always kept for future reference.Ithas to be stored ina safe place, away from dusts and moisture. It has to
be also available andaccessible toall users who shall consult itany time they are in doubt on how tooperate the equipment. The
company reserves the right tomodify its products and related manuals without necessarily updating previous versions ofthe
reference material. Itdeclines also any responsibility for possible inaccuracies inthe manual ifdue toprinting or transcription
errors.
The customer must keep any updated copy of the manual orparts of it delivered bythe manufacturer asanattachment tothis
manual.
The company is available togive any detailed information about this manual and to give information regarding the use and
the maintenance ofits own units.
1.2 GRAPHIC SYMBOLS
Indicates operations that can be dangerous for people and/or disrupts the correct operation of the equipment.
Indicates prohibited operations.
Indicates important information that the operator has to follow in order to guarantee the correct operation of the
equipment in complete safety.
2SAFETY LAWS
The units have been designed in accordance with the following directives and harmonised standards:
•EU Directives 2014/68/UE, 2006/42/EC, 2014/35/UE, 2014/30/EU, 2011/65/EU, 2012/19/EU
•UNI EN 378-1, 378-2, EN 12735-1
•UNI EN ISO 12100, EN 60204-1, UNI EN ISO 13857
•CEI EN 61000-6-3, IEC 61000-6-2.
3PERMITTED USES
•The company excludes any contractual and extra-contractual liabilities for damages 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 have been designed only for heating and/or cooling of water. Any other use not expressly authorized by the
manufacturer is considered improper and therefore not allowed.
•The location of the plant, the hydraulic and electrical circuits must be established by the planting designer and must take into
account both technical requirements as well as any applicable local laws and authorized specifications.
•The execution of all works must be performed by skilled and qualified personnel, competent in the existing rules in different
countries.
The execution of all works must be performed by skilled and qualified personnel and competent in the existing rules in the
country in which the appliance will be installed.

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4GENERAL SAFETY GUIDELINES
Before beginning tooperate on HPE units every user hastobe perfectly knowledgeable about the functions ofthe equipment
and its controls and has tohave read and understood the information listed in this manual.
It’s strictly forbidden to remove and/or 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.
Do not clean the unit when the power supply is ‘ON’.
Do not pull, remove or twist the electrical cables coming out from the unit, even if it is disconnected from the main
power supply.
Do not step with your feet on the appliance, sit down and/or place any type of object.
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 an environmental and life hazard.
Any routine and/or not-routine maintenance operation shall be carried out when the equipment has been shut down,
disconnected from electric and pneumatic power sources and after its pneumatic system has been discharged.
Do not put neither your hands nor insert screwdrivers, spanners or other tools into moving parts of the equipment.
The equipment supervisor and the maintenance man have to receive suitable training for the performance of their
tasks in safety.
Operators have to know how to use personal protective devices and have to know the accident-prevention guidelines
contained in national and international laws and norms.
4.1 WORKERS’ HEALTH AND SAFETY
The European Community has adopted a number of directives on workplace’s health and safety, including 89/391/CEE,
89/686/CEE, 89/655/CEE, 2009/104/CE, 86/188/CEE and 77/576/CEE directives. Every employer shall implement such norms and
ensure that workers to respect them. It points out that:
Do not tamper with or replace parts of the equipment without the specific consent of the manufacturer. The
manufacturer shall have no responsibility whatsoever in case of unauthorised operations.
Using components, expendable materials 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 equipment
The operator’s workplace has to be kept clean, tidy and free from objects that may prevent free movements.
Appropriate lighting of the work place shall be provided so as to allow the operator to carry out the required
operations safely. Poor or too strong lighting can cause risks.
Ensure that work places are always adequately ventilated and that aspirators are working, in good condition and in
compliance with the requirements of the laws in force.
4.2 PERSONAL SAFETY EQUIPMENTS
When operating and maintaining the “HPE” units, use the following personal protective equipment.
Protective clothing: Maintenance man and operators have to wear protective clothing that complies with the basic
safety requirements currently in force. In case of slippery floors, users have to wear safety shoes with non-slip soles.
Gloves: During maintenance or cleaning operation protection gloves have to be used
Mask and goggles: Respiratory protection (mask) and eye protection (goggles) should be used during
cleaning and maintenance operations.
4.3 SAFETY SYMBOLS
The unit features the following safety signs, which has to be complied with:
General hazards
Electric shock hazard
Presence of moving organs
Presence of surfaces that may cause injures
Presence of hot surfaces that can cause burns

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4.4 REFRIGERANT SAFETY DATA SHEET
Name:
R410A (50% Difluoromethane (R32); 50% Pentafluoroethane (R125).
RISKS INDICATIONS
Major risks:
Asphyxia
Specific risks:
The rapid evaporation may cause freezing.
FIRST AID
General information:
Never give anything by mouth to an unconscious person.
Inhalation:
Move to fresh air.
Oxygen or artificial respiration if necessary.
Do not administer adrenaline or similar drugs.
Eyes contact:
Rinse carefully with water for at least 15 minutes and consult a doctor.
Contact with skin:
Wash immediately with plenty of water.
Take off immediately the contaminated clothing.
FIRE PREVENTION
Extinguishing Media:
Whatever.
Specific risks:
Increase in pressure.
Specific methods:
Use water spray to cool containers
ACCIDENTAL RELEASE ACTIONS
Personal precautions:
Evacuate personnel to safe areas.
Provide adequate ventilation.
Use personal protective equipment.
Environmental
Evaporate.
Cleaning method:
Evaporate.
HANDLING AND STORAGE
Manipulation
Action/technical
Provide sufficient air exchange and/or suction in work places.
Recommendations for safe
Do not breathe vapors or aerosol.
Storage:
Close tightly and store in a cool, dry and well ventilated place.
Store in original container. Incompatible products: explosive, flammable materials, Organic
peroxide.
EXPOSURE CONTROL / PERSONAL PROTECTION
Control parameters:
AEL (8-h e 12-h TWA) = 1000 ml/m³ for each of the two components.
Respiratory protection:
For rescue and maintenance operation in storage tanks use self-contained respirator
The vapors are heavier than air and can cause suffocation by reducing oxygen available for
breathing.
Eyes protection:
Safety glasses.
Protection of hands:
Rubber gloves.
Hygiene measures:
Do not smoke.
PHYSICAL AND CHEMICAL PROPERTIES
Color:
Colorless
Odor:
Light.
Boiling point:
-52.8°C at atmospheric pressure.
Lighting point:
It does not ignite.
Density:
1.08 kg/l at 25°C.
Solubility in water:
Negligible.
STABILITY AND REACTIVITY
Stability:
No reactivity when used with the appropriate instructions.
Materials to avoid:
Highly oxidizing materials. Incompatible with magnesium, zinc, sodium, potassium and
The incompatibility is more serious if the metal is present in powdered form or if the surfaces
were, recently, unprotected.
Decomposition products
These products are halogenated compounds, hydrogen fluoride, carbon oxides (CO, CO2),
Risks:
TOXICOLOGICAL INFORMATION
Acute toxicity:
(R32) LC50/ inhalation /4 hours/on rat >760 ml/l
(R125) LC50/ inhalation /4 hours/on rat >3480 mg/l
Local effects:
Concentrations substantially above the TLV may cause narcotic effects.
Inhalation of decomposed products of high concentrations may cause respiratory failure
(pulmonary edema).
Long term toxicity:
Did not show any carcinogenic potential, teratogenic or mutagenic effects in animal experiments.
ECOLOGICAL INFORMATION
Global Warming Potential
2088
GWP (R744=1):
Ozone Depletion Potential
0
ODP (R11=1):
Disposal considerations:
Usable with reconditioning.

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5TECHNICAL CHARACTERISTICS
The HPE water chillers and heat pumps series are designed for residential and industrial applications,these units are extremely
versatile and can operate in heat pump mode with the ability of hotwater production at a temperature up to 65°C for
environmental heating and sanitary applications with the utilization ofelectric heaters.
The use of brushless inverter compressor technology, matched with the electronic expansion valve and to the pump and the
variable speed blower are generally used for optimizing the power consumption and the operative efficiency of the refrigerating
components of the whole system.
5.1 FRAME
All i-HP units are made up of hot-galvanised thick sheet metal, painted with polyurethane powder enamels at 180°C to ensure the
best resistance against atmospheric agents. The front panel is hinged to the lift side to allow access to the internal components for
inspection and maintenance. The screws and the inserts are made up of galvanized steel.
5.2 REFRIGERANT CIRCUIT
The refrigerant circuit has been manufactured according to the UNI EN 13134 directive concerning welding procedures. The
refrigerant gas employed in these units is R410A type. The refrigerant circuit includes in its basic version: 4-way reversing cycle
valve, electronic expansion valve, liquid separator, liquid receiver, check and maintenance valves, pressure safety device according
to PED regulation (high pressure switch), and pressure transducers to accurately adjust the evaporating and condensing pressures,
filters for expansion valve to prevent its clogging. The versions with vapour injection also include heat exchanger to produce
vapour, electronic injector valve, and the ON-OFF valves of injection in case of two compressors.
5.3 COMPRESSORS
The compressors are scroll type DC inverter designed foruse with R410A refrigerant, and are mounted ona rubber material acting
as a shock absorber. The compressors of the injection versions are designed tooptimize the efficiency of the refrigerant cycle
under low ambient temperatures conditions and aresupplied with connection for vapour injection.
The crankcase heater operates when the compressor remains off for atleast 30minutes and if the discharge temperature is below
20°C (with hysteresis of 2.0°C). When the compressor restarts, the crankcase heater will stop operation. We recommend toturn
on the unit and toput itin standby mode atleast 6 hours before the first start-up.
The checking ofthe compressors is possible through the front panel ofthe unit that allows the maintenance ofthe compressors
even if the unit is in operation.
5.4 AIR-SIDE EXCHANGER
The air-side heat exchanger is made up of copper pipes and aluminium fins. The copper pipes diameter is 7,94 mm, the thickness
of the aluminium fins is 0,12 mm. The pipes are mechanically expanded into the aluminium fins in order to improve the heat
transfer coefficient. The geometry of this heat exchanger ensures a low value air-side pressure drop and then it allows the use of
fans with low number of revolutions (with the advantage of reducing the unit noise level).
5.5 FAN MOTOR
The fan motor is axial type with plastic aerofoil blades. It is statically and dynamically balanced and supplied with a safety fan
guard. The fan motor is a modulated brushless type, directly coupled and equipped with an integrated thermal overload
protection. The protection class of the motor is IPX4 according to CEI EN 60529.
5.6 USER-SIDE HEAT EXCHANGER
The user-side heat exchanger is made up of AISI 304 stainless steel braze-welded plates type, and is factory insulated with flexible
close cell material and is equipped with an antifreeze electric heater (optional accessory: KA). Each evaporator is equipped with a
temperature sensor for antifreeze protection that activates the circulator, even in the case where the unit is turned off when
meeting the setting parameters by controller.
5.7 ELECTRICAL CONTROL PANEL
The electrical control panel board is manufactured according to European Union directives currently in force. To access to the
electrical control panel board, put the disconnect switch in the Off position, (presence of a door lock system) and wait until fan
blades have come to a complete stop, open the front panel by removing the three screws with a flat-head screwdriver, turn to
open quarter-turn the two locks of the electric control panel board. The protection degree is IP34. The electric box is supplied with
a terminal block completed with free contacts for remote ON-OFF, and for winter/summer change over. The addition of the
optional module GI enables the management of further functions of the plant.
5.8 CONTROL SYSTEM
The HPE units are equipped with a microprocessor adopting an overheating control logic program through the electronic
thermostatic valve managed by the pressure transducers signals and temperature sensor. The CPU also manages the following
functions: water temperature regulation, antifreeze protection, compressors’ time setting, alarm reset, alarms management and
operation LED. Upon request, the microprocessor can be connected to a BMS remote control system and to the simpler HNS
system with our terminal units. The control system together with the INVERTER technology and the on board sensors can
continuously monitor and adapt the performance of the inverter compressor, of the circulator pump and of the fan motor.
5.9 CONTROL AND PROTECTION DEVICES
The units are standard equipped with the following control and protection devices: return water temperature sensor installed on
the return water pipe line from the plant, operating and antifreeze sensor installed on the outlet water pipe to the plant, high

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pressure transducer, low pressure transducer, compressor’s inlet and outlet temperature sensors, thermal protection device for
fan motors, water side water flow switch to protect the evaporator, high pressure HP flow switch.
5.10 HYDRAULIC CIRCUIT
The heap pump chillers of i-HP series are supplied with an integrated hydronic kit including: plate heat exchanger, a pressure
gauges at the inlet and outlet of the heat exchanger for evaluating the load losses, service valve and flow switch for protection,
automatic air release valve and safety valve (6 bar) to be connected to the collection system. The version with an integrated
modulating type circulator pump adopting a brushless motor with high efficiency (EEI≤0,23), suitable for the utilization of chilled
water and directly managed by the controller on board.
5.11 FAN SPEED CONTROL
This type of regulation, performed by the microprocessor, is necessary for optimizing the evaporation/condensation pressure
during summer/winter operation in order to allow the correct operation of the appliance.
5.12 ENHANCED VAPOUR INJECTION (EVI) TECNOLOGY
The heat pumps of HPE LT series are equipped with scroll compressors with vapor
injection (EVI technology) provide maximum efficiency regarding the standard units
with scroll compressors.
The EVI technology consists ofinjecting the refrigerant vapour atthe intermediate
stage of the compression process which cansignificantly increase the capacity and
the efficiency of the compressor.
Each scroll compressor installed inthe heat pumps of the series i-HP-LT is
comparable to a two-stage compressor but withanintermediate stage of cooling
the refrigerant.
The diagram shows the main stages of the refrigeration cycle of the unit with EVI
technology. The stage ofhigh pressure is consisting ofthe extraction of a part of
the liquid refrigerant coming out ofthe condenser and then expands through an
injection valve, in a heat exchanger which functions as a sub-cooler.
The generated superheated vapour is then injected into the E.V.I. compressor in
the middle ofthe compression cycle (through a special pipeinside the compressor
itself).
The additional sub-cooling of the liquid thus obtained could greatly increase the
capacity of the evaporator.
Ahigher ratio between the condensation and evaporation pressures will
significantly increase the performance ofthis system with respect toall the
traditional technologies ofgascompression.
This system allows the air/water heat pump of the series i-HP-LT to generate hot
water upto60°C and capable ofoperating in temperatures up to -25°C.

6AVAILABLE VERSIONS WITH SIZES AND ACCESSORIES
The code unit is composed of:
no. 7 fixed digits (the first two digits identify the i-HP series in its eventual customizations)
the # symbol as a separator
no. 11 variables digits (fields) which identify the sizes, versions and factory mounted accessories
no. 1 fixed digits equal to 0, for now it is not used
0110516#(CT1)(TA)(IV)(CI)(KA)(GI)(FAN)(SIL)(TR)00(MC)
FATHER CODE
SIZE
VERSION
0110516#
CT
TA
IV
Output capacity
Configuration of water piping Vapor injection
00 25 kW
01
35 kW
02
50 kW
03
60 kW
04
50F kW
05
70 kW
0
2 pipes
0
Without injection
1
With injection (*)
(*) It is not available for the capacities of 60, 50F and 70 kW.