Kaysun KHP-MO 4 DVP Installation instructions

Read this manual carefully before using the product, and keep it for future reference.
All the pictures in this manual are for illustrations purpose only.
INSTALLATION AND OWNER'S
MANUAL
KHP-MO 4 DVP
KHP-MO 6 DVP
KHP-MO 8 DVP
KHP-MO 10 DVP
Aquantia R-290 Monobloc HT
Outdoor Unit
KHP-MO 12 DVP
KHP-MO 14 DVP
KHP-MO 16 DVP
KHP-MO 12 DTP
KHP-MO 14 DTP
KHP-MO 16 DTP

CONTENTS
1SAFETY PRECAUTIONS
01
2GENERAL INTRODUCTION
09
09
2.1 Documentation
09
2.2 Validity of the Instructions
10
2.3 Unpacking
10
2.4 Accessories of the Unit
11
2.5 Transportation
12
2.6 Parts to be Removed
13
2.7 Operation Range
14
2.8 Hydraulic Module
3SAFETY ZONE
15
4UNIT INSTALLATION
16
17
4.1 Conditions for Installation
17
4.2 Foundation and Unit Installation (Installation on a Ground)
17
4.3 Drainage
18
4.4 In Cold Climates
5HYDRAULIC INSTALLATION
19
19
5.1 Preparations for Installation
19
5.2 Water Loop Connection
20
5.3 Filling Water Loop with Water
20
5.4 Filling Domestic Hot Water Tank with Water
20
5.5 Water Pipe Insulation
20
5.6 Freeze Protection
22
5.7 Water
6ELECTRICAL INSTALLATION
23
23
6.1 Opening the Electrical Box Cover
23
6.2 Back Plate Layout for Wiring
23
6.3 Electrical Wiring
24
6.4 Connection of Power Supply
24
6.5 Connection of Other Components
31
6.6 Cascade Function
31
6.7 Connection of Other Optional Components
7INSTALLATION OF WIRED CONTROLLER
32
32
7.1 Materials for Installation
32
7.2 Dimensions
32
7.3 Wiring
33
7.4 Mounting

9CONFIGURATION
36
8COMPLETION OF INSTALLATION
35
36
9.1 Checks before Configuration
37
9.2 Configuration
38
10.1 Test Run for the Actuator
38
10.2 Air Purge
39
10.3 Test Run
39
10.4 Check of the Minimum Flow Rate
10 COMMISSIONING
38
12
TECHNICAL DATA
40
40
12.1 General
41
12.2 Piping Diagram
43
12.3 Wiring Diagram
11 HAND-OVER TO THE USER
39
44
Annex 1. Menu Structure (Wired Controller)
46
Annex 2. Operation Settings
ANNEX
44

01
1 SAFETY PRECAUTIONS
Observe the basic safety regulations before starting
work and operation.
DANGER
It indicates a hazard with a high level of
risk which, if not avoided, will result in
serious injury.
DANGER
WARNING
It indicates a hazard with a medium level of
risk which, if not avoided, could result in
serious injury.
CAUTION
It indicates a hazard with a low level of risk
which, if not avoided, could result in minor or
moderate injury.
Additional information.
NOTE
Target group
These instructions are exclusively intended for
qualified contractors and authorized installers.
Work on the refrigerant circuit with
flammable refrigerant in safety group A3 may
only be carried out by authorized heating
contractors. These heating contractors must
be trained in accordance with EN 378 Part 4 or
IEC 60335-2-40, Section HH. The certificate
of competence from an industry accredited
body is required.
Brazing/soldering work on the refrigerant
circuit may only be carried out by personnel
certified in accordance with ISO 13585 and
AD 2000, Datasheet HP 100R. And only
contractors qualified and certified for the
processes can perform brazing/soldering
work. The work must fall within the range of
applications purchased and be carried out in
accordance with the prescribed procedures.
Soldering/brazing work on accumulator
connections requires certification of
personnel and processes by a notified body
according to the Pressure Equipment
Directive (2014/68/EU).
Work on electrical equipment may only be
carried out by a qualified electrician.
Before initial commissioning,all safety-
related points must be checked by the
particular certified heating contractors. The
system must be commissioned by the system
installer or a qualified person authorized by
the installer.
Intended use
There is a risk of injury or death to the user or others,
or of damage to the product and other property in the
event of improper or unintended use.
The product is the outdoor unit of an air-to-water heat
pump with monoblock design.
The product uses the outdoor air as a heat source
and can be used to heat a residential building and
generate domestic hot water.
The air that escapes from the product must be able to
flow out freely, and must not be used for any other
purposes.
The product is only intended for outdoor installation.
The product is intended exclusively for domestic use,
which means that the following places are not
appropriate for installation:
Where there is mist of mineral oil or oil spray or
vapors. Plastic parts may deteriorate, and cause joint
loose and leakage of water.
Where corrosive gases (such as sulfurous acid
gas) are produced, or corrosion of copper pipes or
soldered parts may cause leakage of refrigerant.
Where there is machinery which emits massive
electromagnetic waves. Enormous electromagnetic
waves can disturb the control of the system and
cause equipment malfunction.
Where flammable gases may leak, carbon fiber
or ignitable dust is suspended in the air or volatile
flammables such as paint thinner or gasoline are
handled. These types of gases might cause a fire.
Where the air contains high levels of salt such as
a location near the ocean.
Where voltage fluctuates a lot, such as a location
in a factory.
In vehicles or vessels.
Where acidic or alkaline vapors are present.
Symbols on the unit
Flammable refrigerant is
applied. A fire may occur
due to unexpected
leakage of refrigerant.
Read the operation
manual carefully before
any further action.
Only a specialist is
allowed to take action
under the instructions of
the installation manual.
The information is
available in the relevant
documentation.
WARNING
CAUTION
CAUTION
CAUTION

02
DANGER
Risk of explosion: Refrigerant leak may form
a flammable or explosive atmosphere in the
ambient air.
Take the following measures to prevent fire
and explosion in the safety zone:
Keep ignition sources away, including
naked flames, plug sockets, hot surfaces,
light switches, lamps, electrical devices not
free of ignition sources, mobile devices with
integrated batteries (such as mobile phones
and fitness watches).
Do not use any sprays or other
combustible gases in the safety zone.
CAUTION
Improper use of any kind is prohibited.
Do not rinse the unit.
Do not place any object or equipment on top
of the unit (top plate).
Do not climb, sit or stand on top of the unit.
The electrical equipment must meet the
requirements for areas at risk of explosion,
zone 2.
Do not use flammable materials such as
sprays or other flammable gases.
Before starting work, discharge static
electricity by touching grounded objects, such
as heating or water pipes.
Do not remove, block or bridge safety
equipment.
Do not make any changes: Do not modify
the outdoor unit, inlet/ outlet lines, electrical
connections/ cables or the surroundings. Do
not remove any components or seals.
The tools must also be suitable for the
pressure ranges in use. Tools must be in
perfect maintenance conditions.
NOTE
In addition to the control circuit there may be
several power circuits.
NOTE
Intended use also covers installation in accordance
with the IP code.
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 provided that they have been given
supervision or instruction concerning the use of the
appliance in a safe way and understand the hazards
involved. Children should not play with the appliance.
Cleaning and maintenance should not be made by
children without supervision
Any other use that is not specified in these
instructions, or use beyond that specified in this
document, should be considered as improper use.
Any direct commercial or industrial use is also
deemed to be improper.
Regulations to be observed
1)National installation regulations.
2)Statutory regulations for the prevention of
accidents.
3)Statutory regulations for environmental protection.
4)Statutory requirements for pressure equipment:
Pressure Equipment Directive 2014/68/EU.
5)Codes of practice of the relevant trade
associations.
6)Relevant country-specific safety regulations.
7)Applicable regulations and guidelines for operation,
service, maintenance, repair and safety of cooling, air
conditioning and heat pump systems containing
flammable and explosive refrigerant.
Working on the system
Switch off the power supply for the unit (including all
affiliated parts) at a separate fuse or mains isolator.
Check and ensure that the system is no longer live.
Safety instructions for working
on the system
Working in the safety zone
The outdoor unit contains flammable refrigerant R290
(propane C3H8). In case of a leak, the escaping
refrigerant may form a flammable or explosive
atmosphere in the ambient air. A safety zone is
defined in the immediate vicinity of the outdoor unit, in
which special rules apply when work is performed on
the appliance. See section "Safety zone".
CAUTION
Intended use includes the following:
Observance of the operating instructions
included for the product and any other installation
components.
Compliance with all inspection and maintenance
conditions listed in the instructions.
Installing and setting up the product in
accordance with the product and system approval.
Installation, commissioning, inspection, maintenance
and troubleshooting by qualified contractors and
authorized installers.
Permissible tools: All tools for working in the
safety zone must be designed and
explosion-protected in accordance with the
applicable standards and regulations for
refrigerant in safety groups A2L and A3, such
as brushless machines (cordless disposal
containers, installation aids, and
screwdrivers), extraction equipment, vacuum
pumps, conductive hoses, and mechanical
tools of non-sparking material.

03
DANGER
Contact with live components can result in
severe injuries. Some components on PCBs
remain live even after the power supply has
been switched off. Prior to removing covers
from the appliances, wait at least 4 minutes
until the voltage has completely dropped out.
Safeguard the system against
re-connection.
Wear suitable personal protective
equipment when carrying out any work.
Do not touch any switch or electrical parts
with wet fingers. It may cause electrical shock
and compromise the system.
Electronic assemblies can be damaged by
electrostatic discharge. Before beginning
work, touch earthed objects, such as heating
or water pipes, to discharge any static.
NOTE
Check the refrigerant circuit for leaks.
Ensure very good ventilation especially in the floor
area and maintain this for the duration of the work.
Secure the area surrounding the work area.
Inform the following persons of the type of work to
be carried out: – All maintenance personnel – All
persons in the vicinity of the system.
Inspect the area immediately around the heat
pump for flammable materials and ignition sources:
Remove all flammable materials and ignition sources.
Before, during and after the work, check the
surrounding area for escaping refrigerant using an
explosion-proof refrigerant detector suitable for
R290. This refrigerant detector must not generate any
sparks and must be suitably sealed.
A CO2or powder extinguisher must be available
in the following cases: – Refrigerant is being drained.
– Refrigerant is being topped up. – Soldering or
welding work is in progress.
Display signs prohibiting smoking.
Working on the refrigerant circuit
R290 refrigerant (propane) is an air displacing,
colorless, flammable, odorless gas which forms
explosive mixtures with air. Refrigerant drained must
be properly disposed of by authorized contractors.
Perform the following measures before beginning
work on the refrigerant circuit:
Safety work area and temporary flammability zones.
DANGER
Escaping refrigerant can lead to fires and
explosions that result in very serious
injuries.
Do not drill or apply heat to a refrigerant
circuit filled with refrigerant.
Do not operate Schrader valves unless a
fill valve or extraction equipment is attached.
Take measures to prevent electrostatic
charge.
Do not smoke. Avoid naked flames and
sparks. Never switch lights or electrical
appliances on or off in environments with
naked flames or sparks.
Components that contain or contained
refrigerant must be labeled, and stored in well
ventilated areas in accordance with the
applicable regulations and standards.
DANGER
Direct contact with liquid or gaseous
refrigerant can cause serious damage to
health such as frostbite and/or burns. There
is a risk of asphyxiation if liquid or gaseous
refrigerant is breathed in.
Prevent direct contact with liquid or
gaseous refrigerant.
Wear personal protective equipment
when handling liquid or gaseous refrigerant.
Never breathe in any refrigerant vapor.
DANGER
Refrigerant is under pressure: Mechanical
loading of lines and components can cause
leaks in the refrigerant circuit. Do not apply
loads to the lines or components, such as
supporting or placing tools.
DANGER
Hot surfaces and fluids can result in burns or
scalding. Cold surfaces may cause frostbite.
Prior to servicing or maintenance tasks,
switch off and allow the equipment to cool
down or warm up.
Do not touch hot or cold surfaces on the
appliance, fittings or pipework.
CAUTION
When working on systems using flammable
refrigerants, the technician should consider
certain locations as “temporary flammable
zones”. These are normally regions where at
least some emission of refrigerant is antici-
pated to occur during the normal working
procedures, such as recovery, charging and
evacuation, typically where hoses may be
connected or disconnected. The technician
should ensure three meters safety working
area (radius of the unit) in case of any
accidental release of refrigerant that forms a
flammable mixture with air.

04
NOTE
Hydraulic components may freeze during
refrigerant removal. Drain heating water from
the heat pump beforehand.
NOTE
Connecting cables
Repair work
Installation
General
Be sure to use only specified accessories and
parts for installation. Failure to use specified parts
may result in water leakage, electric shocks, fires, or
the unit falling from its mount.
Install the unit on a foundation that can withstand
its weight. Insufficient physical strength may cause
the unit to fall and possible injury.
Perform specified installation work with full
consideration of strong wind, hurricanes, or
earthquakes. Improper installation may result in
accidents due to equipment falling.
Earth the unit and install a ground fault circuit
interrupter in accordance with local regulations.
Operating the unit without a proper ground fault circuit
interrupter may cause electric shocks and fires.
Install the power cable at least 3 feet (1 meter)
away from televisions or radios to prevent
interference or noise. (Depending on the radio
waves, a distance of 3 feet (1 meter) may not be
sufficient to eliminate the noise.)
Any damaged power cord must be replaced by
the manufacturer or its service agent or a similarly
qualified person in order to avoid a hazard.
Freezing protection
Freezing can cause damage to the heat pump.
Thermally insulate all the hydraulic lines.
Antifreeze can be filled in the secondary
circuit in accordance with local regulations and
standards.
NOTE
DANGER DANGER
DANGER
Hot or cold metallic surfaces of the refrigerant
circuit may cause burns or frostbite in case of
skin contact. Wear personal protective
equipment to protect against burns or
frostbite.
DANGER
Damage to the refrigerant circuit can cause
refrigerant to enter the hydraulic system. After
completion of the work, vent the hydraulic
system correctly. When doing so, ensure the
area is sufficiently ventilated.
DANGER
With short electrical cables, should there be
leakage in the refrigerant circuit, gaseous
refrigerant may reach the inside of the
building. Min. length of the electrical
connecting cables between the indoor and the
outdoor unit: 3 m.
Auxiliary components, spare
and wearing parts
Repairing components that fulfil a safety
function can compromise the safe operation of
the system.
Replace faulty components only with
genuine spare parts from the manufacturer.
Do not undertake any repairs on the
inverter. Replace the inverter if there is a
defect.
Repair work should not be performed in the
field. Repair the unit in a specified location.
NOTE
Spare and wearing parts that have not been
tested together with the system can
compromise the function of the system.
Installing non-authorized components and
making non-approved modifications or
conversions can compromise the safety and
may invalidate our warranty. Only use original
spare parts supplied or approved by the
manufacturer for replacement.
CAUTION
Do not install any air vent valve in the indoor
side. Make sure the outlet of the indoor safety
valve leads to the outdoor side.
Two situations should be considered for outdoor
installations to prevent damage to the system,
releases, and undesirable consequences:
Where the equipment is located in an area
accessible by members of the public, and.
Where the equipment is located in a
restricted area, with access to authorized
persons only.
Open flames, fires, open
ignition sources and smoking
are prohibited.
Inflammable matters are
prohibited.

05
To avoid potential risk from refrigerant leak,
always keep 2 meters away from the unit,
especially for kids, no matter the unit is in
operation or not.
NOTE A build-up of ice in the condensate pan and in
the fan area of the outdoor unit can cause
damage to the equipment.
Do not use mechanical items/aids to
remove ice.
Before using electrical heating
appliances, check the refrigerant circuit for
leaks with a suitable measuring device. The
heating appliance should not be a source of
ignition, and must meet the requirements of
EN 60335-2-30.
If ice regularly builds up on the outdoor
unit (e.g. in areas where frost and heavy fog
occur frequently), install a fan ring heater
(accessory) that is suitable for refrigerant
R290 and/or an electric ribbon heater in the
condensate pan (accessory or factory-fitted
device).
NOTE
The outdoor unit is charged at the factory with
refrigerant R290 (propane).
DANGER
Refrigerant leak can lead to fires and
explosions that result in very serious
injuries. Breathing in refrigerant may cause
asphyxiation.
Ensure very good ventilation especially in
the floor area of the outdoor unit.
Do not smoke. Avoid naked flames and
sparks. Never switch lights or electrical
appliances on or off in environments with
naked flames or sparks.
Evacuate any people from the dangerous
zone.
From a safe position, switch off the power
supply for all system components.
Remove ignition sources from the
dangerous zone.
The system user should know that no
ignition source may be brought into the
dangerous zone during the repair.
Repair work must be carried out by an
authorized contractor.
Do not recommission the system until it is
repaired.
DANGER
Refrigerant leak can lead to fires and
explosions that result in very serious
injuries. Breathing in refrigerant may cause
asphyxiation. Store the outdoor unit in the
following conditions:
An explosion prevention plan must be in
place for storage.
Ensure the storage location is well
ventilated.
Keep away from ignition sources (avoid
exposure to heat and smoking).
Temperature range for storage: –25 °C to
70 °C
Only store the outdoor unit in its exfactory
protective packaging.
Protect the outdoor unit against damage.
The maximum number of outdoor units
that may be stored in one place is determined
according to local conditions.
What to do if refrigerant leaks
Safety instructions for operating
the system
DANGER
If water leaks from the appliance, an electric
shock may occur. Switch off the heating
system at the external isolator (e.g. fuse box,
domestic distribution board).
DANGER
If water leaks from the appliance, scalding
may occur. Never touch hot water.
What to do if water leaks
What to do if the outdoor unit ices up
Safety instructions for storage of the
outdoor unit
DANGER
Direct contact with liquid or gaseous refrigerant
can cause serious damage to health, e.g.
frostbite and/or burns. Breathing in liquid or
gaseous refrigerant may cause asphyxiation.
Prevent direct contact with liquid or
gaseous refrigerant.
Never breathe in refrigerant vapors.
CAUTION
A fire with R290 should only be fought with
CO2or dry powder extinguishers.

06
Repair and maintenance of electrical components
should include initial safety checks and component
inspection procedures.
In the event of a fault that could compromise safety,
no power supply should be connected to the circuit
until it is satisfactorily dealt with. If the fault cannot be
corrected immediately but it is necessary to continue
operation, an adequate temporary solution should be
used. This should be reported to the owner of the
equipment to give advises to all parties involved.
Initial safety checks should include the following:
Capacitors should be discharged in a safe
manner to avoid possibility of sparking;
No live electrical components and wiring should
be exposed while charging, recovering or purging the
system;
The earth bonding should be continuous.
During repairs of sealed components, all power
supplies should be disconnected from the equipment
where work is in progress prior to any removal of
sealed covers or other components. If it is absolutely
necessary to keep a power supply connected with the
equipment during servicing, a permanent leak
detection should be performed at the most critical
point to avoid a potential hazard.
Particular attention should be paid to the following to
ensure that the casing is not altered in such a way
that the level of protection is affected by working on
electrical components. This includes damage to
cables, an excessive number of connections,
terminals not compliance with original specifications,
damage to seals, and incorrect fitting of glands.
Ensure that seals or sealing materials have not
degraded in such a manner that they no longer serve
for the purpose of preventing the ingress of
flammable atmospheres. Parts for replacement
should be in accordance with the manufacturer’s
specifications.
Do not apply any permanent inductive or capacitance
loads that exceed the permissible voltage or current
of the equipment in use to the circuit..
Intrinsically safe components are the only types that
can be worked on while live in the presence of a
flammable atmosphere. The test apparatus should be
provided with the correct rating.
The following checks should be applied to
installations using flammable refrigerants:
The charge size should depend on the size of the
room within which refrigerant containing components
are installed;
The ventilation machinery and outlets should
operate adequately and not be obstructed;
If an indirect refrigerating circuit is used, the
secondary circuit should be checked for any
refrigerant;
Marking to the equipment should remain visible
and legible. Illegible markings and signs should be
corrected;
Refrigeration pipes or components should be
installed in positions where they are unlikely to be
exposed to any substance which may corrode
refrigerant containing components, unless the
components are constructed of materials that are
inherently resistant to corrosion or are suitably
protected against corrosion.
WARNING
The following applies to R290 refrigerant
systems.
Prior to work on systems containing
flammable refrigerants, safety checks are
necessary to minimize the risk of ignition.
For repair of the refrigerating system, the following
precautions should be complied with prior to
conducting work on the system.
Work should be undertaken under a controlled
procedure so as to minimize the risk of a flammable
gas or vapor being present while the work is being
performed.
All maintenance staff and others working in the local
area should be instructed on the nature of work being
carried out. Work in confined spaces should be
avoided. The area around the workspace should be
sectioned off. Ensure that the area is safe through
control of flammable materials.
The area should be checked with an appropriate
refrigerant detector prior to and during work, to
ensure the technician is aware of potentially
flammable atmospheres.
Ensure that the leak detection equipment being used
is suitable for use with flammable refrigerants, i.e. ,
the equipment should be non-sparking, adequately
sealed or intrinsically safe. If any hot work is to be
conducted on the refrigeration equipment or any
associated parts, appropriate fire extinguishing
equipment should be available to hand. Have a dry
powder or CO2fire extinguisher adjacent to the
charging area.
No person carrying out work in relation to a
refrigeration system which may expose any pipe that
contains or has contained flammable refrigerant
should use any sources of ignition in such a manner
that it may lead to the risk of fires or explosions.
All possible ignition sources, including lighted
cigarettes, should be kept sufficiently far away from
the site of installation, repair, removal and disposal,
during which flammable refrigerant can possibly be
released into the surrounding space.
Prior to work, the area around the equipment should
be checked to make sure that there are no flammable
hazards or ignition risks. “No Smoking” signs should
be displayed.
Ensure that the area is in the open or adequately
ventilated before breaking into the system or
conducting any hot work. A degree of ventilation
should continue during the work. The ventilation
should safely disperse any released refrigerant and
preferably expel it externally into the atmosphere.
For any change of the electrical components, they
should be fit for the intended purpose and comply
with the correct specifications.
Always follow the manufacturer’s maintenance and
service guidelines. In case of any doubt, consult the
manufacturer’s technical department for assistance.
About the Refrigerant

07
Replace components only with parts specified by the
manufacturer. Other parts may result in the ignition of
refrigerant in the atmosphere due to a leak.
Check and ensure that cabling is free from wear,
corrosion, excessive pressure, vibration, sharp edges
or any other adverse environmental effects. The
check should also take into account the effects of
ageing or continual vibration from sources such as
compressors or fans.
When breaking into the refrigerant circuit for repair –
or for any other purpose – follow the conventional
procedures. However, it is important to follow the
best practice.
Since flammability is a consideration, the following
procedure should be adhered to:
Remove the refrigerant;
Purge the circuit with inert gas;
Evacuate;
Purge the circuit again with inert gas;
Open the circuit by cutting or brazing.
The refrigerant should be recovered into correct
recovery cylinders. The system should be “flushed”
with OFN to guarantee the unit safety. This process
may need to be repeated several times. Compressed
air or oxygen should not be used for this task.
Flushing should be achieved by breaking the vacuum
in the system with OFN and continuing to fill until the
working pressure is achieved before venting to the
atmosphere and pulling down to a vacuum. This
process should be repeated until no refrigerant exists
in the system. When the final OFN charge is used,
the system should be vented down to the
atmospheric pressure so that the work can start..
This operation is absolutely vital if brazing operations
on the pipe-work are to take place.
Ensure that the outlet for the vacuum pump is not
close to any ignition sources and adequate ventilation
is available.
Ensure that contamination of different refrigerants
does not occur when using charging equipment.
Hoses or lines should be as short as possible to
minimize the amount of refrigerant contained in them.
Prior to recharging the system, it should be pressure
tested with OFN.
DD.12 Decommissioning:
Before this procedure starts, it is necessary for the
technician to be completely familiar with the
equipment and all its details. It is recommended that
all refrigerants be recovered safely. Prior to the task,
an oil and refrigerant sample should be taken in
case analysis is required prior to re-use of reclaimed
refrigerant. It is essential that electrical power is
available before the task is commenced.
a) Be familiar with the equipment and its operation.
b) Isolate the system electrically.
c) Before attempting the procedure, ensure that:
Mechanical handling equipment is available, if
required, for handling refrigerant cylinders;
All personal protective equipment is available and
being used correctly;
The recovery process is supervised at all times by
a competent person;
The recovery equipment and cylinders should
conform to the appropriate standards.
d) Pump down refrigerant system, if possible.
e) If a vacuum is not possible, make a manifold so
that refrigerant can be removed from various parts of
the system.
f) Make sure that the cylinders are situated on the
scales before recovery.
g) Start the recovery machine and operate it in
accordance with manufacturer's instructions.
h) Do not overfill the cylinders. (No more than 80 % of
volume for liquid charge).
i) Do not exceed the maximum working pressure of
the cylinders, even temporarily.
j) When the cylinders have been filled correctly, make
sure that the cylinders and the equipment are
removed from the site promptly and all isolation
valves on the equipment are closed off.
k) Recovered refrigerant should not be charged into
another refrigeration system unless it has been
cleaned and checked.
Equipment should be labeled stating that it has been
de-commissioned and emptied of refrigerant. The
label should be dated and signed. Ensure that the
equipment is provided with a label stating the
existence of flammable refrigerant in the equipment.
When removing refrigerant from a system, either for
servicing or decommissioning, it is recommended
that all refrigerants be removed safely. Always
transfer refrigerant into appropriate cylinders. Ensure
that a correct number of cylinders are available for
supporting the total system charge. All cylinders to be
used should be designated for
the recovered refrigerant and labeled for that
refrigerant (i.e. special cylinders for the recovery of
refrigerant). The cylinders should be complete with
pressure relief valves and associated shut-off valves
in good working conditions. Empty recovery
cylinders should be evacuated and, if possible,
cooled down before recovery occurs.
The recovery equipment should be in good working
conditions with a set of instructions concerning the
equipment that is at hand and should be suitable for
the recovery of flammable refrigerants. In addition, a
set of calibrated weighing scales should be available
and work properly. Hoses should be complete with
leak-free disconnect couplings and work properly.
Before using the recovery machine, check and
ensure that it is in satisfactory working conditions and
has been properly maintained, and that all associated
electrical components are sealed to prevent ignition
in the event of a refrigerant leak. Consult the
manufacturer if in in case of any doubt.
The recovered refrigerant should be returned to the
refrigerant supplier in correct recovery cylinders, with
the relevant Waste Transfer Note arranged. Do not
mix refrigerants in recovery units and especially not in
cylinders. If any compressor or compressor oils is to
be removed, ensure that it has been evacuated to an
acceptable level to ensure that flammable refrigerant

08
Leak detection
The following leak detection methods are deemed acceptable for systems containing flammable refrigerants.
Electronic leak detectors should be used to detect flammable refrigerants, but the sensitivity may not be adequate, or
may need re-calibration. (Detection equipment should be calibrated in a refrigerant-free area.) Ensure that the
detector is not a potential source of ignition and is suitable for the refrigerant. Leak detection equipment should be set
at a percentage of the LFL of the refrigerant and should be calibrated to be suitable for the refrigerant employed, with
the appropriate percentage of gas (25% maximum) confirmed. Leak detection fluids should be suitable for most
refrigerants but the use of detergents containing chlorine should be avoided as the chlorine may react with the
refrigerant and corrode the copper pipes. If a leak is suspected, all naked flames should be removed or extinguished.
If a leakage of refrigerant is found and brazing is required, all of the refrigerant should be recovered from the system,
or isolated (by means of shut off valves) in a part of the system that is far from the leak. The system should be purged
with oxygen free nitrogen (OFN) both before and during the brazing process.
Disposal
This equipment uses flammable refrigerants. The disposal of the equipment must comply with national regulations.
Do not dispose this product as unsorted municipal waste. Collection of such waste separately for special treatment is
necessary.
Do not dispose of electrical appliances as unsorted municipal waste, and use separate collection facilities.
Contact your local government for information regarding the collection systems available.
If electrical appliances are disposed of in landfills or dumps, hazardous substances can leak into the groundwater and
get into the food chain, damaging your health and well-being.
does not remain within the lubricant. The evacuation process should be carried out prior to returning the compressor
to the supplier. To accelerate this process, you can only heat the compressor body with an electric heater. Draining
oil from the system should ensure the safety..
Warning: Disconnect the appliance from its power source during servicing and parts replacement.
These units are partial unit air conditioners, complying with partial unit requirements of this International Standard, and
must only be connected to other units that have been confirmed as complying to corresponding partial unit
requirements of this International Standard.

09
2 GENERAL INTRODUCTION
2.1 Documentation
Always observe all the operating and installation instructions included with
the system components.
Hand these instructions and all other applicable documents to the end user.
This document is part of a documentation set. The complete set consists of:
Installation Manual (this manual)
Brief installation instructions
Format: paper (in the box of the outdoor unit)
Installation, Operation and Maintenance Manual
Preparation for the installation, good practices…(more information contained,
for installers and advanced users only)
Format: digital files.
Operation Manual (wired controller)
Quick guide for basic usage
Format: paper (in the box of the outdoor unit)
Technical Data Manual
Performance data and ERP information
Format: paper (in the box of the outdoor unit)
Online Tools (APP and websites)
Refer to the OPERATION MANUAL for more information
2.2 Validity of the Instructions
These instructions apply only to:
Unit
Net weight (kg) 90 (95*)
3 kW (1-phase) 3 kW (1-phase) or 9 kW (3-phase)
117 (122*) 135 (140*) 137 (142*)
1-phase 3-phase
4 6 8 10 12 14 16 12 14 16
Wiring specification
(mm2) - main power
supply
Minimum flow rate
required (m3/h)
Capacity of
backup heater
Wiring specification
(mm2) - backup
heater power supply
* With a backup heater
The standard version does not include a backup heater, but it can be added as an optional feature for specific units.
2.5-4 2.5-4
2.5-4 2.5-4 2.5-4 2.5-4 2.5-4 2.5-4 2.5-4 2.5-4 2.5-4 2.5-4
0.4 0.4 0.4 0.4 0.7 0.7 0.7 0.7 0.7 0.7
4-6 4-6 6-10 6-10 6-10 2.5-4 2.5-4 2.5-4

Y-shape strainer
4-6 kW:G 1”
8-16 kW:G 1 1/4”
1
10
8-16 kW units are illustrated. All units apply to the same principle.
NOTE
2.3 Unpacking
2.4 Accessories of the Unit
Accessories of the unit
Name Illustration Quantity Specification
For the accessories box, see 2.4 Accessories of the Unit for more details.
① ②
③④Hollow plate (For protection purposes,
remove it after unit installation)
Installation Manual
(this manual) 1 -
Technical Data
Manual 1 -
Operation Manual 1 -

11
2.5 Transportation
2.5.1 Dimensions and barycenter
For more options supplied by the manufacturer, see the INSTALLATION, OPERATION AND MAINTENANCE MANUAL
for further information.
Tie wrap 4
1 -
1 -
1 -
-
1
1 A
B
-
Wired controller box
10 m
Drain joint
1
1
Thermistor (DHW tank,
zone 2 water flow or
balance tank)
Energy label
Corner protector
The illustrations below are for 8-16 kW units. The principle is the same for 4-6 kW units. A, B, and C indicate the
locations of barycenter.
C
A
MH
B
A
D
E
F
G
I J K LN
32
φ
Network matching
line
1
Extension wire for
T5 or T1B

12
CAUTION
Move the parts above after unit installation.
The barycenter of the product and the hook
should be kept in a straight line in the vertical
direction to prevent excessive tilting.
NOTE
2.6 Parts to be Removed
(mm)
2.5.2 Manual transportation
2.5.3 Lifting
A
B
Risk of injury from lifting a heavy weight.
Lifting weights that are too heavy may cause
injury to the spine, for example.
Note the weight of the product.
Have four people lift the product.
WARNING
1. Take into consideration the weight distribution
during transportation. The product is significantly
heavier on the compressor side than on the fan
motor side. (see content above for the barycenter)
2. Protect the casing sections from damage. Using
corner protectors under the unit when lift the unit.
3. After transportation, remove the transport straps.
4. During transportation, do not tilt the product to an
angle larger than 45°.
Use lifting tools with transport straps or a suitable
hand truck.
Unit on the pallet:
Pass the transport straps through the holes on the
left and right sides of the pallet properly.
No pallet under the unit:
The transport straps can be fitted into foreseen
sleeves at the base frame that are made specifically
for this purpose. Using corner protectors under the
unit when lifting the unit.
≥1000mm
Corner protector
Model A
1 phase 4/6 kW
1 phase 8/10 kW
B C
1 phase 12/14/16 kW
3 phase 12/14/16 kW
333
360
415
415
528
550
715
715
210
234
200
200
717
865
865
865
91
129
129
129
D E G HF I J K L M N
To open the unit, see 6.1 Opening the Electrical Box
Cover.
For 3Phase 12/14/16kW
91
100
100
100
1299
1385
1385
1385
426
523
523
523
121
192
192
192
644
656
656
656
379
363
363
363
90
77
77
77
375
456
456
456
71
68
68
68
Remove the
transportation support

13
TW_out leaving water temperature
T4 outdoor ambient temperature
T5 DHW tank temperature
T4 outdoor ambient temperature
2.7 Operating Range
In cooling mode, the product works at an outdoor
temperature of -5 to 46°C.
TW_out
T4
5
-5
10
19
11 25 55
46
Operation range by heat pump with possible limitation and
protection.
Maximum inlet water temperature line for heat pump operation.
In heating mode, the product works at an outdoor
temperature of -25 to 35°C
T1 leaving water temperature
T4 outdoor ambient temperature
T1
T4
-25
5
-20
-15
-10
-5
0
5
10
15
20
25
30
35
10 15 20 25 30 35 10 40 45 50 55 60 65 70 75
Operation range by heat pump with possible limitation and
protection.
If IBH/AHS setting is valid,only IBH/AHS turns on;
If IBH/AHS setting is invalid,only heat pump turns on,
limitation and protection may occur during heat pump operation.
Heat pump turns off,only IBH/AHS turns on.
Maximum inlet water temperature line for heat pump operation.
T5
T4
-25
5
-20
-15
-10
-5
0
5
10
15
20
25
30
35
40
10 15 20 25 30 35 10 40 45 50 55 60 65 70
46
Operation range by heat pump with possible limitation and
protection.
If TBH/IBH/AHS setting is valid,only TBH/IBH/AHS turns on;
If TBH/IBH/AHS setting is invalid,only heat pump turns on,
limitation and protection may occur during heat pump operation.
Heat pump turns off,only TBH/IBH/AHS turns on.
T1
T4
-25
5
-20
-15
-10
-5
0
5
10
15
20
25
30
35
40
10 15 20 25 30 35 10 40 45 50 55 60 65 70 75
46
Operation range by heat pump with possible limitation and
protection.
If IBH/AHS setting is valid,onlyIBH/AHS turns on;
If IBH/AHS setting is invalid,only heatpump turns on,
limitation and protection may occur during heat pump operation.
Heat pump turns off,only IBH/AHSturns on.
T1 leaving water temperature
T4 outdoor ambient temperature
In DHW mode, the product works at an outdoor
temperature of -25 to 46°C

14
2.8 Hydraulic Module
4/6 kW unit with a backup heater (optional)4/6 kW unit without a backup heater
8 -16 kW unit without a backup heater 8 -16 kW unit with a backup heater (optional)
3
4
1
7
2
4
9
6
8
7
11
10
12
7
8
5.4
5.5
9
9
2
11
8
10
12
8
12
10
1
1
4
6
7
3
9
1
3
3
11
10
12
Assembly Unit
Code
1
2
3
4
5
6
7
8
9
10
11
12
Automatic air purge valve
Backup heater (optional)
Expansion vessel
Refrigerant gas pipe
Temperature sensor
Refrigerant liquid pipe
Flow switch
Pump
Plate heat exchanger
Water outlet pipe
Pressure relief valve
Water inlet pipe
Explanation
Automatically removes the remaining air from the water loop.
Provides additional heating capacities when the heating capacity of the heat pump is
insufficient due to low outdoor temperature, and protects the external water pipes
from freezing.
Balances the water system’s pressure.
Four temperature sensors determine the water and refrigerant temperature at various
points in the water loop: 5.1-T2B, 5.2-T2, 5.3-T1 (optional), 5.4-TW_out, and 5.5-TW_in
Detects the water flow rate to protect the compressor and water pump in the event of
insufficient water flow.
Circulates water in the water loop.
Transfers heat from the refrigerant to the water.
Prevents excessive water pressure by opening when the pressure reaches 3 bar and
discharging water from the water loop.
/
/
/
/

15
3 SAFETY ZONE
The particular safety zone is dependent on
the surroundings of the outdoor unit.
The safety zones below are shown with
floor standing installation. These safety zones
also apply to other types of installation.
NOTE
The refrigerant circuit in the outdoor unit contains
easily flammable refrigerant in safety group A3 as
described in ISO 817 and ANSI/ASHRAE Standard
34. Therefore, a safety zone is defined in the
immediate vicinity of the outdoor unit, in which
special requirements apply. Note that this refrigerant
has a higher density than air. In the event of a leak,
escaping refrigerant may be collected near the earth.
The following conditions must be avoided within the
safety zone:
Building openings such as windows, doors, light
wells, and flat roof windows;
Outdoor air and exhaust air apertures of
ventilation and air conditioning systems;
Property boundaries, neighboring properties,
footpaths, and driveways;
Pump shafts, inlets to waste water systems,
downpipes, and waste water shafts, etc.;
Other slopes, troughs, depressions, and shafts;
Electrical house supply connections;
Electrical systems, sockets, lamps, and light
switches; Snowfall from roofs.
Do not introduce ignition sources into the safety zone:
Naked flames or burner gauze assemblies.
Grills.
Tools that generate sparks.
Electrical devices not free of ignition sources,
mobile devices with integrated batteries (such as
mobile phones and fitness watches).
Objects with a temperature of above 360°C.
Freestanding positioning of the outdoor unit
Siting the outdoor unit in front of an external wall
Corner positioning of the outdoor unit, left
A Safety zone
A Safety zone
1000mm
A
A
≥300mm
1000mm
2400mm
3400mm
2400mm
2900mm
300mm
500mm
500mm
500mm
1800mm
A

A
B
C
C
D
E
D
E
F
F
F
G
X(X<A)
Wall height unrestricted
I
H
H
C
General
Obstacle over the top
No obstacle over the top
(mm)
4-10 kW
D
E
F
≥500
≥500
≥300
G
H
I
≥500
≥500
≥500
A
B
C
Unit height + B
≥100*
≥1000
D
E
F
≥500
≥500
≥300
G
H
I
≥500
≥500
≥500
A
B
C
Unit height + B
≥100*
≥1500
12-16 kW
16
* In case of cold weather, take into account of snow on the ground. For more information, refer to 4.4 In Cold
Climates.
For cascade application installation clearance, refer to the INSTALLATION, OPERATION AND MAINTENANCE
MANUAL.
4 UNIT INSTALLATION