Arbonia Sabiana Energy Genius 17T Manual

INSTALLATION, OPERATION AND
MAINTENANCE INSTRUCTIONS
Inverter Reversible Air-to-Water Heat Pumps
Energy Genius 17-21

2
The cover photograph is for illustrative purposes only and is not part of any offer for sale or contract.
CONTENTS
1 - INTRODUCTION ..................................................................................................................................................................... 6
1.1 - Introduction .............................................................................................................................................................................. 6
1.2 - Safety ......................................................................................................................................................................................... 6
1.3 - Preliminary checks ................................................................................................................................................................. 10
1.4 - Dimensions, clearances.......................................................................................................................................................... 11
1.5 - Physical data and electrical data of ENGY units ............................................................................................................... 13
2 - INSTALLATION OF UNIT ................................................................................................................................................... 15
2.1 - General.................................................................................................................................................................................... 15
2.2 - Moving and placing the unit.................................................................................................................................................. 15
2.3 - Water connections .................................................................................................................................................................. 18
2.4 - Electrical connections............................................................................................................................................................ 23
2.5 - Water ow rate control .......................................................................................................................................................... 25
2.6 - Commissioning modes........................................................................................................................................................... 29
2.7 - Check before start the unit.................................................................................................................................................... 29
3 - INSTALLATION OF SYSTEM ............................................................................................................................................. 29
3.1 - General customer electrical connection on terminal block .............................................................................................. 30
3.2 - First step of conguration: Setting the time and day.......................................................................................................... 30
3.3 - Second step of conguration: Parameter menu.................................................................................................................. 31
3.4 - Installation with booster electric heaters ............................................................................................................................ 32
3.5 - Installation with DHW production ...................................................................................................................................... 35
3.6 - Installation with DHW production and boiler ................................................................................................................... 38
3.7 - Master / Slave installation ..................................................................................................................................................... 40
3.8 - Unit without WUI or with WUI installed in a technical room ......................................................................................... 44
3.9 - Unit with remote user interface installed in indoor ambient (room) .............................................................................. 45
3.10 - Additional OAT sensor........................................................................................................................................................ 47
3.11 - IAT sensor............................................................................................................................................................................. 47
4 - OPERATION............................................................................................................................................................................ 48
4.1 - Unit range ............................................................................................................................................................................... 48
4.2 - Operating modes ................................................................................................................................................................... 48
4.3 - Major system components..................................................................................................................................................... 59
5 - MAINTENANCE..................................................................................................................................................................... 61
5.1 - Standard maintenance ........................................................................................................................................................... 61
5.2 - Tightening torques for the main electrical connections..................................................................................................... 62
5.3 - Tightening torques for the main bolts and screws .............................................................................................................. 62
5.4 - Air heat exchanger ................................................................................................................................................................. 62
5.5 - Water heat exchanger maintenance ..................................................................................................................................... 63
5.6 - Unit maintenance................................................................................................................................................................... 63
5.7 - Refrigerant volume ................................................................................................................................................................ 63
5.8 - Characteristics of R-410A ..................................................................................................................................................... 63
6 - ALARM DESCRIPTION....................................................................................................................................................... 64
7 - PARAMETERS OVERVIEW ............................................................................................................................................... 67
8 - START-UP CHECKLIST FOR 30RBV/RQV HEAT PUMPS (USE FOR JOB FILE) .............................................. 74
8.1 - General information .............................................................................................................................................................. 74
8.2 - Available options and accessories ........................................................................................................................................ 74
8.3 - Checks before start of unit.................................................................................................................................................... 74
8.4 - Checks during operation of unit........................................................................................................................................... 75
8.5 - Maintenance checks............................................................................................................................................................... 75

3
The cover photograph is for illustrative purposes only and is not part of any offer for sale or contract.
FIGURES CONTENT
Figure 1: Transport conguration.................................................................................................................................................. 15
Figure 2: Ofoading conguration................................................................................................................................................ 15
Figure 3: Installation conguration............................................................................................................................................... 15
Figure 4: How to remove front panel ........................................................................................................................................... 17
Figure 5: How to remove right hand panel .................................................................................................................................. 17
Figure 6: Water connection on unit .............................................................................................................................................. 19
Figure 7: Typical diagram of the hydronic circuit with the hydronic module 17-21 kW......................................................... 21
Figure 8: Fixed speed Hydronic module with expansion tank .................................................................................................. 22
Figure 9: Power connection with Main Switch ............................................................................................................................ 23
Figure 10: Customer electrical connection on terminal block................................................................................................... 30
Figure 11: Password screen ............................................................................................................................................................ 31
Figure 12: Standard installation with booster electric heaters .................................................................................................. 33
Figure 13: Electrical connection on terminal block for booster electric heaters..................................................................... 33
Figure 14: Standard installation with DHW production ............................................................................................................ 35
Figure 15: Electrical connection on terminal block for DHW production .............................................................................. 36
Figure 16: Standard installation with DHW production and boiler ......................................................................................... 39
Figure 17: Electrical connection on terminal block for DHW production and boiler............................................................ 39
Figure 18: Standard installation with Master / Slave (example with 3 slaves)......................................................................... 41
Figure 19: Electrical connection on terminal block for Master / Slave installation ................................................................ 41
Figure 20: WUI screen for Slave 1 ................................................................................................................................................ 43
Figure 21: Electrical connection of remote interface ................................................................................................................. 45
Figure 22: Electrical connection of additional OAT sensor and IAT sensor........................................................................... 47
Figure 23: Winter position for unit with hydronic module......................................................................................................... 54
Figure 24: Operation of booster and backup............................................................................................................................... 57
Figure 25: Activation and conguration for drying mode.......................................................................................................... 58
Table 1: Minimum and maximum wire section (per phase) for connection to ENGY units................................................. 24
Table 2: Steps to clean, purge, and dene a ow rate for hydraulic circuit .............................................................................. 25
Table 3: Actions in WUI parameter menu or Service tools to activate the cleaning purge and control of ow rate for hydraulic circuit .. 26
Table 4: Different operating modes.............................................................................................................................................. 49
Table 5: Possible switches to install on system ............................................................................................................................ 50
Table 6: Possible setpoint congurations ..................................................................................................................................... 50
Table 7: Different congurations of pump.................................................................................................................................. 56
Table 8: Different control logic for main pump .......................................................................................................................... 56
Table 9: Different control logic for additional pump.................................................................................................................. 56
Table 10: Alarms listing .................................................................................................................................................................. 64
Graphic 1: Available external static pressure for 17kW unit with variable speed hydronic module.................................... 29
Graphic 2: Available external static pressure for 21kW unit with variable speed hydronic module.................................... 29

4
ACRONYMS AND LEGEND
Acronyms
IAT Indoor Air Temperature
BPHE Brazed Plate Heat Exchanger
CHWS Chiller Water System
DHW Domestic Hot Water
EHS Electric Heater Stage
EWT Entering Water Temperature
FCU Fan Coil Unit
LWT Leaving Water Temperature
NHC New Hydronic Control (refer to wiring diagram 'Main control card')
OAT Outdoor Air Temperature
PMV Pulse Modulating Valve
SHC Space Heating / Cooling Control
TR Refrigerant Temperature
UFC Underoor Cooling
UFH Underoor Heating
WUI User Interface (Wall-mounted User Interface)

5
Standard installation Legend
Label Symbol Designation Notes
- Device • Field supplied
-
Acc
Accessory • Field mounted
-
Opt
Option • Factory mounted
- Balancing valve • Field supplied
• Balancing to adjust the water ow rate
- Stop valve • Field supplied
- Automatic Air vent • Field supplied
• Automatic air vent(s) on highest position in the loop
Add EXP-T Additional expansion tank
• Field supplied
• Additional expansion tank depending the total water in the loop contend
- taking in account the expansion tank (XXL) embedded in hydronic module
- Boiler • Boiler used to boost or backup the heat pump for comfort
Eh1 & EH2 Electrical Heater (1 or 2) • Electrical heaters up to two with a max. stages up to 3
• Used to boost or backup the heat pump for comfort
EH3
EH3
DHW-Electrical Heater Backup (1 stage) • Domestic Hot Water Electrical Heater - one stage used to backup DHW
(when condtions are out of heat pump map)
DHW-T Domestic Hot Water - Tank • Field supplied
DHW-S Domestic Hot Water - Sensor • Accessory to mount on top of the DHW-Tank
• Measure DHW-Temperature
DHW-V
B
AB
A
Domestic Hot Water - Valve or Diverting valve • Accessory to be eld mounted, it will position the valve to send either to
comfort loop or DHW-T, the processed water
add_pmp Additional Water Pump • Field Supplied, it is used for comfort loop as a secondary loop
De-Coupling
Tank De-Coupling Tank • Field Supplied, it is used to connect dierent water loop rates as well as
to receive the boiler loop
EH-Boiler
EH1 EH2
Electrical Heater Boiler • Field Supplied, it is used for comfort loop as a Booster Heater (HP+EH) or
Backup (EH only) when HP is out of the map.
- Flexible • Field supply, it is used to lower vibrations transmissions if necessary
HTSS
HTSS
T>Tmax High Temperature Safety Switch • Field supplied, use to stop system when UFH max, water temperature is
triggered

6
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1.1 - Introduction
Prior to the initial start-up of the ENGY units, the people
involved should be thoroughly familiar with these instructions
and technical data for the installation.
The ENGY outdoor systems are designed to provide a very
high level of safety and reliability making installation, start-
up, operation and maintenance easier and more secure.They
will provide safe and reliable service when operated within
their application range.
They are designed for an operating life of 15 years by
assuming a 75% utilisation factor; that is approximately
100,000 operating hours.
The procedures in this manual are arranged in the sequence
required for machine installation, start-up, operation and
maintenance.
Be sure you understand and follow the procedures and safety
precautions contained in the instructions supplied with the
machine, as well as those listed in this guide, such as:
protective clothing such as gloves, safety glasses, safety shoes
and appropriate tools, and suitable qualications (electrical,
air conditioning, local legislation).
To nd out, if these products comply with European directives
(machine safety, low voltage, electromagnetic compatibility,
equipment under pressure, etc.) check the declarations of
conformity for these products.
1.2 - Safety
1.2.1. Installation safety considerations
After the unit has been received, and before it is started up,
it must be inspected for damage. Check that the refrigerant
circuits are intact, especially that no components or pipes have
shifted or been damaged (e.g. following a shock). If in doubt,
carry out a leak tightness check. If damage is detected upon
receipt, immediately le a claim with the shipping company.
This appliance can be used by children aged from 8 years and
above and persons with reduced physical, sensory or mental
capabilities or lack of experience and knowledge if they have
been given supervision or instruction concerning use of the
appliance in a safe way and understand the hazards involved.
Children should be supervised to ensure that they do not
play with the appliance.
Do not remove the pallet or the packaging until the unit is
in its nal position. These units can be moved with a fork
lift truck, as long as the forks are positioned in the right
place and direction on the unit.
The units can also be lifted with slings (refer to Figure
1 and 2).
Use slings with the correct capacity, and always follow the
lifting instructions on the certied drawings supplied for
the unit.
Safety is only guaranteed, if these instructions are carefully
followed. If this is not the case, there is a risk of material
deterioration and injuries to personnel.
DO NOT COVER ANY PROTECTION DEVICES.
This applies to fuse plugs and relief valves (if used) in the
refrigerant or heat transfer medium circuits. Check if the
original protection plugs are still present at the valve outlets.
These plugs are generally made of plastic and should not
be used. If they are still present, please remove them. Install
devices at the valve outlets or drain piping that prevent the
penetration of foreign bodies (dust, building debris, etc.)
and atmospheric agents (water can form rust or ice). These
devices, as well as the drain piping, must not impair operation
and not lead to a pressure drop that is higher than 10% of
the control pressure.
Classication and control
In accordance with the Pressure Equipment Directive and
national usage monitoring regulations in the European
Union the protection devices for these machines are classied
as follows:
Intervention Name of the
commissioning
engineer
Applicable
national
regulations
Verication
Organism
Date Nature (1)
(1) Maintenance, repairs, regular verications (EN 378), leakage, etc.
Do not remove these valves and fuses, even if the re risk is
under control for a particular installation. There is no
guarantee that the accessories are reinstalled if the
installation is changed or for transport with a gas charge.
When the unit is subjected to re, safety devices prevent
rupture due to over-pressure by releasing the refrigerant.
The uid may then be decomposed into toxic residues when
subjected to the ame:
-Stay away from the unit.
-Set up warnings and recommendations for personnel
in charge to stop the re.
-Fire extinguishers appropriate to the system and the
refrigerant type must be easily accessible.
All factory-installed relief valves are lead-sealed to prevent
any calibration change.
Relief valves must be checked periodically. See paragraph
§1.2.4. Repair safety considerations.
Provide a drain in the discharge circuit, close to each relief
valve,to avoid an accumulation of condensate or rain water.
All precautions concerning handling of refrigerant must be
observed in accordance with local regulations.
Accumulation of refrigerant in an enclosed space can displace
oxygen and cause asphyxiation or explosions.

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Inhalation of high concentrations of vapour is harmful and
may cause heart irregularities, unconsciousness, or death.
Vapour is heavier than air and reduces the amount of oxygen
available for breathing. These products cause eye and skin
irritation. Decomposition products can be hazardous.
1.2.2 - Equipment and components under pressure
These products incorporate equipment or components under
pressure, produced by manufacturers. We recommend that
you consult your appropriate national trade association or
the owner of the equipment or components under pressure
(declaration, re-qualification, retesting, etc.). The
characteristics of this equipment/these components are given
on the nameplate or in the required documentation, supplied
with the products. These units comply with the European
Pressure Equipment Directive.
The units are intended to be stored and operate in an
environment where the ambient temperature must not be
less than the lowest allowable temperature indicated on the
nameplate.
Do not introduce signicant static or dynamic pressure with
regard to the operating pressures used during operation or
for tests in the refrigerant circuit or in the heat exchange
circuits.
NOTES:
Monitoring during operation, re-qualication, re-testing,
exemption from retesting:
• Follow local regulations on the monitoring of pressure-
containing equipment.
• The user or the operator is usually requested to create
and maintain a monitoring and maintenance register.
• In absence of regulation or in addition to the
regulations, follow the guidance in EN 378 and ISO
5149.
• Follow the local professional recommendations,
whenever they exist.
• Regularly monitor the surface of the components to
detect cavernous corrosion. To do this check an
uninsulated part of the pressure vessel or at a joint in
the insulation.
• Regularly check for possible presence of impurities
(e.g. silicon grains) in the heat exchange uids. These
impurities can cause wear and/or pitting corrosion.
• Filter the heat exchange uid.
• The reports of the periodical checks by the user or the
operator must be included in the monitoring and
maintenance register.
Repair:
Any repair or modication of a pressure vessel is prohibited.
Only the replacement of the vessel by an original part from
the manufacturer is allowed. In this case, the replacement
must be carried out by a qualied technician.The replacement
of the vessel must be entered in the monitoring and
maintenance register.
Recycling:
The pressure equipment can be recycled in whole or in part.
After use they may contain refrigerant vapours and oil
residue. Some parts are painted.
1.2.3 - Maintenance safety considerations
Manufacturer recommends the following drafting for a
logbook (the table below should not be considered as
reference and does not involve Manufacturer responsibility):
Safety
accessory*
Damage limitation accessory**
in case of an external re
Refrigerant side
High-pressure switch X
External relief valve*** X
Rupture disk X
Fuse plug X
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External relief valve **** ****
* Classied for protection in normal service situations.
** Classied for protection in abnormal service situations.
*** The instantaneous over-pressure limited to 10% of the operating pressure does
not apply to this abnormal service situation. The control pressure can be higher
than the service pressure. In this case either the design temperature or the high-
pressure switch ensures that the service pressure is not exceeded in normal
service situations.
**** The classication of these relief valves must be made by the personnel that
completes the whole hydronic installation.
Professional technicians working on the electric or
refrigeration components must be authorized, trained and
fully qualied to do so.
All refrigerant circuit work must be carried out by a trained
person, fully qualied to work on these units. He must have
been trained and be familiar with the equipment and the
installation. All welding operations must be carried out by
qualied specialists.
The units use high-pressure R-410A refrigerant (the unit
operating pressure is above 40 bar, the pressure at 35°C air
temperature is 50% higher than for R-22). Special equipment
must be used when working on the refrigerant circuit
(pressure gauge, charge transfer, etc.).
Do not clean the unit with hot water or steam. This may
cause a pressure increase of the refrigerant.
Any manipulation (opening or closing) of a shut-off valve
must be carried out by a qualied and authorised technician,
observing applicable standards (e.g. during draining
operations).The unit must be switched off while this is done.
During any handling, maintenance and service operations
the qualied technician working on the unit must be equipped
with safety gloves, safety glasses, shoes and protective
clothing.
Never work on a unit that is still energized. Never work on
any of the electrical components, until the general power
supply to the unit has been cut.
If any maintenance operations are carried out on the unit,
lock the power supply circuit in the open position and secure
the machine upstream with a padlock.
If the work is interrupted, always ensure that all circuits
are still de-energized before resuming the work.

8
CAUTION:
Even if the unit has been switched off, the power circuit
remains energized, unless the unit or customer circuit
disconnect switch is open. Refer to the wiring diagram for
further details. Attach appropriate safety labels. When
working in a fan area, specically if the grilles have to be
removed, isolate the power supply to the fans to prevent
their operation.
CAUTION:
The variable frequency drives (VFD) tted to the units have
the circuit capacitors whose discharge time is ve (5) minutes
after disconnecting the power supply.
After disconnecting the power supply of the control box,
wait for 5 minutes before accessing the control box.
Before any intervention, verify that there is no voltage present
at any accessible conducting parts of the power circuit.
Moreover be careful of contact with zones at hot temperature
inside the unit, which can exist after the operation of unit
(refrigerant and electronic parts).
It is recommended to install an indicating device to show
if part of the refrigerant has leaked from the valve. The
presence of oil at the outlet orice is a useful indicator that
refrigerant has leaked. Keep this orice clean to ensure that
any leaks are obvious. The calibration of a valve that has
leaked is generally lower than its original calibration. The
new calibration may affect the operating range. To avoid
nuisance tripping or leaks, replace or re-calibrate the valve.
OPERATING CHECKS:
• IMPORTANT INFORMATION REGARDINGTHE
REFRIGERANT USED:
This product contains uorinated greenhouse gas covered
by the Kyoto protocol.
Refrigerant type: R-410A
Global Warming Potential (GWP): 2088
Periodic inspections for refrigerant leaks may be required
depending on European or local legislation. Please contact
your local dealer for more information.
CAUTION:
1. Any intervention on the refrigerant circuit of this
product should be performed in accordance with the
applicable legislation. In the EU, the regulation is
called F-Gas, N°517/2014.
2. Ensure that the refrigerant is never released to the
atmosphere during installation, maintenance or
equipment disposal.
3. The deliberate gas release into the atmosphere is not
allowed.
4. If a refrigerant leak is detected, ensure that it is stopped
and repaired as quickly as possible.
5. Only a qualied and certied personnel can perform
installation operations,maintenance,refrigerant circuit
leak test as well as the equipment disposal and the
refrigerant recovering.
6. The gas recovery for recycling, regeneration or
destruction is at customer charge.
7. Periodic leak tests have to be carried out by the customer
or by third parties.The EU regulation set the periodicity
here after:
System WITHOUT
leakage detection No Check 12 Months 6 Months 3 Months
System WITH leakage
detection No Check 24 Months 12 Months 6 Months
Refrigerant charge/circuit
(CO2equivalent) < 5 Tons 5 ≤Charge
< 50 Tons
50 ≤ Charge
< 500 Tons
Charge >
500 Tons*
Refrigerant
charge/
Circuit (kg)
R134A
(GWP
1430)
Charge <
3.5 kg
3.5 ≤
Charge <
34.9 kg
34.9 ≤
Charge <
349.7 kg
Charge >
349.7 kg
R407C
(GWP
1774)
Charge <
2.8 kg
2.8 ≤
Charge <
28.2 kg
28.2 ≤
Charge <
281.9 kg
Charge
>281.9 kg
R410A
(GWP
2088)
Charge <
2.4 kg
2.4 ≤
Charge <
23.9 kg
23.9 ≤
Charge <
239.5 kg
Charge >
239.5 kg
HFO’s:
R1234ze No requirement
* From 01/01/2017, units must be equipped with a leakage detection system
8. A logbook must be established for equipments subject
to periodic leak tests. It should contain the quantity
and the type of uid present within the installation
(added and recovered), the quantity of recycled uid,
regenerated or destroyed, the date and output of the
leak test, the designation of the operator and its
belonging company, etc.
9. Contact your local dealer or installer if you have any
questions.
Protection device cheks:
• If no national regulations exist, check the protection
devices on site in accordance with standards EN 378
/ ISO 5149: once a year for the high-pressure switches,
every ve years for external relief valves.
The company or organisation that conducts a pressure switch
test shall establish and implement a detailed procedure to
x:
-Safety measures
-Measuring equipment calibration
-Validating operation of protective devices
-Test protocols
-Recommissioning of the equipment.
Consult Service for this type of test. The manufacturer
mentions here only the principle of a test without removing
the pressure switch:
-Verify and record the setpoints of pressure switches and
relief devices (valves and possible rupture discs)
-Be ready to switch-off the main disconnect switch (on
the unit or on the installation) of the power supply if
thepressureswitchdoesnottrigger(avoidover-pressure)
-Connect a calibrated pressure gauge (with Schrader
female port of ½ UNF)
-Complete an HP Switch Test as provided by the control
system function:

9
Note: The Rating Mode is implemented for test purpose
(Lab tests, …). When the Rating Mode is active, Water
Control Point is ignored by the control.
The Pump is forced to run during the Rating Mode.
CAUTION:
If the test leads to replacing the pressure switch, it is necessary
to recover the refrigerant charge, these pressure switches are
not installed on automatic valves (Schrader type).
At least once a year, visually inspect the protection devices
(valves, pressure switches).
If the machine operates in a corrosive environment, inspect
the protection devices more frequently.
Check regularly for leaks and repair immediately. Ensure
regularly that the vibration levels remain acceptable and
close to those at the initial unit start-up.
Before opening a refrigerant circuit, transfer the refrigerant
to bottles specically provided for this purpose and consult
the pressure gauges.
Change the refrigerant after an equipment failure,following
a procedure such as the one described in NF E29-795 or
carry out a refrigerant analysis in a specialist laboratory.
If the refrigerant circuit remains open after an intervention
(such as a component replacement, etc.):
• Seal the openings if the duration is less than a day
• If more than 1 day, charge the circuit with oxygen free
nitrogen (inertia principle).
The objective is to prevent penetration of atmospheric
humidity and the resulting corrosion.
1.2.4. Repair safety considerations
All installation parts must be maintained by the personnel
in charge to avoid deterioration and injury. Faults and leaks
must be repaired immediately. The authorized technician
must have the responsibility to repair the fault immediately.
After each unit repair check the operation of the protection
devices and create a 100% parameter operation report.
Steps Table Par. Designation Description Range Default Ex. Unit
Activate the HP
Switch test QCK_TEST
321 Quick Test enable Access to Quick test mode 0 to 1 0 1 -
323 Rating Mode
0 = Rating O
1 = Rating Cool (set frequency with _RAT_FRQ parameter)
2 = Rating Heat (set frequency with_RAT_FRQ parameter)
3 = Ramp Cool (_RAT_FRQ corresponds to the change rate Hz/
min, ramp up if positive, ramp down if negative).
4 = Ramp Heat (_RAT_FRQ corresponds to the change rate Hz/
min, ramp up if positive, ramp down if negative).
Note: The Rating Mode is implemented for test purpose (Lab
tests, …). When the Rating Mode is active, Water Control Point is
ignored by the control.
The Pump is forced to run during the Rating Mode.
0 to 4 0 0 -
322 HP Switch Test
0 = HP Test O
1 = HP Test Requested
2 = HP Test in Progress
3 = HP Test OK
4 = HP Test Failed due to timeout
5 = HP Test Failed due to Flow Switch Failure
6 = HP Test Failed due to Low Water Temperature
7 = HP Test Failed due to Inverter Failure
0 to 7 0 1 -
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321 Quick Test enable When the HP Switch test is nished, exit quick test mode 0 to 1 0 0 -
Comply with the regulations and recommendations in unit
and HVAC installation safety standards, such as: EN 378,
ISO 5149, etc.
If the supply cord is damaged, it must be replaced by the
manufacturer,its service agent or similarly qualied persons
in order to avoid a hazard.
RISK OF EXPLOSION
Never use air or a gas containing oxygen during leak tests
to purge lines or to pressurise a machine. Pressurised air
mixtures or gases containing oxygen can be the cause of an
explosion. Oxygen reacts violently with oil and grease.
Only use dry nitrogen for leak tests, possibly with an
appropriate tracer gas.
If the recommendations above are not observed, this can
have serious or even fatal consequences and damage the
installation.
Never exceed the specied maximum operating pressures.
Verify the allowable maximum high- and low-side
testpressures by checking the instructions in this manual
and the pressures given on the unit name plate.
Do not unweld or amecut the refrigerant lines or any
refrigerant circuit component until all refrigerant (liquid
and vapour) as well as the oil have been removed from the
heat pump. Traces of vapour should be displaced with dry
nitrogen. Refrigerant in contact with an open ame can
produce toxic gases.
The necessary protection equipment must be available, and
appropriate re extinguishers for the system and the
refrigerant type used must be within easy reach.
Do not siphon refrigerant.
Avoid spilling liquid refrigerant on skin or splashing it into
the eyes. Use safety goggles and safety gloves. Wash any
spills from the skin with soap and water.If liquid refrigerant
enters the eyes, immediately and abundantly ush the eyes
with water and consult a doctor.

10
The accidental releases of the refrigerant, due to small leaks
or signicant discharges following the rupture of a pipe or
an unexpected release from a relief valve,can cause frostbites
and burns to personnel exposed. Do not ignore such injuries.
Installers, owners and especially service technicians for
these units must:
-Seek medical attention before treating such injuries.
-Have access to a rst-aid kit, especially for treating
eye injuries.
We recommend to apply standard EN 378-3 Annex 3 and
ISO5149.
Never apply an open ame or live steam to a refrigerant
circuit. Dangerous overpressure can result.
During refrigerant removal and storage operations follow
applicable regulations. These regulations, permitting
conditioning and recovery of halogenated hydrocarbons under
optimum quality conditions for the products and optimum
safety conditions for people, property and the environment
are described in standard NF E29-795. The units must never
be modied to add refrigerant and oil charging, removal and
purging devices.All these devices are provided with the units.
Refer to the certied dimensional drawings for the units.
It is dangerous and illegal to re-use disposable (non-returnable)
cylinders or attempt to rell them. When cylinders are empty,
evacuate the remaining gas pressure, and move them to a
designated place for recovery. Do not incinerate.
Do not attempt to remove refrigerant circuit components
or ttings, while the machine is under pressure or while it
is running. Be sure pressure is at 0 kPa and that the unit
has been shut-down and de-energised before removing
components or opening a circuit.
Do not attempt to repair or recondition any safety devices
when corrosion or build-up of foreign material (rust, dirt,
scale, etc.) is found within the valve body or mechanism. If
necessary, replace the device. Do not install safety valves
in series or backwards.
CAUTION:
No part of the unit must be used as a walkway, rack or
support.Periodically check and repair or if necessary replace
any component or piping that shows signs of damage.
Do not step on refrigerant lines. The lines can break under
the weight and release refrigerant, causing personal injury.
Do not climb on a machine. Use a platform, or staging to
work at higher levels.
Use mechanical lifting equipment (crane, hoist, winch, etc.)
to lift or move heavy components. For lighter components,
use lifting equipment when there is a risk of slipping or
losing your balance.
Use only original replacement parts for any repair or
component replacement.Consult the list of replacement parts
that corresponds to the specication of the original equipment.
Do not drain water circuits containing industrial brines,
without informing the technical service department at the
installation site or a competent body rst.
Close the entering and leaving water shutoff valves and
purge the unit hydronic circuit, before working on the
components installed on the circuit (screen lter, pump,
water ow switch, etc.).
Periodically inspect all valves, ttings and pipes of the
refrigerant and hydronic circuits to ensure that they do not
show any corrosion or any signs of leaks.
Always ensure you are using the correct refrigerant type
before recharging the unit.
Charging any refrigerant other than the original charge type
(R-410A) will impair machine operation and can even lead
to a destruction of the compressors. The compressors operate
with R-410A and are charged with asyntheticpolyol-ester oil.
Before any intervention on the refrigerant circuit, the
complete refrigerant charge must be recovered.
1.3 - Preliminary checks
Check equipment received:
-Inspect the unit for damage or missing parts. If damage
is detected, or if shipment is incomplete, immediately
le a claim with the shipping company.
-Conrm that the unit received is the one ordered.
Compare the name plate data with the order.
-The name plate is attached to the unit in two locations:
• on the outside on one of the unit sides
• on the inside.
-Theunitnameplatemust includethefollowinginformation:
• Model number - size
• CE marking
• Serial number
• Year of manufacture,pressure and leaktightness test date
• Fluid being transported
• Refrigerant used
• Refrigerant charge per circuit
• PS: Min./max. allowable pressure (high and low pressure
side)
• TS: Min./max. allowable temperature (high and low
pressure side)
• Pressure switch cut-out pressure
• Unit leak test pressure
• Voltage, frequency, number of phases
• Maximum current drawn
• Maximum power input
• Unit net weight
-Conrm that all options ordered for on-site installation
have been delivered,and are complete and undamaged.
The unit must be checked periodically, if necessary removing
the insulation (thermal,acoustic), during its whole operating
life to ensure that no shocks (handling accessories, tools,
etc.) have damaged it. If necessary, the damaged parts must
be repaired or replaced. See also chapter §5. Maintenance.