Kaysun Aquantia KHPS-MO Series Operating instructions

IMPORTANT NOTE:
Thank you very much for purchasing our product,
Before using your unit, please read this manual carefully and keep it for future reference.
INSTALLATION & OWNER’S
MANUAL
Aquantia Air/Water Heat Pumps
KHPS-MO Set - Monobloc
KHPS-MO 5 DVR
(KHP-MO 5 DVR)
KHPS-MO 7 DVR
(KHP-MO 7 DVR)
KHPS-MO 9 DVR
(KHP-MO 9 DVR)
KHPS-MO 12 DVR
(KHP-MO 12 DVR)
KHPS-MO 14 DVR
(KHP-MO 14 DVR)
KHPS-MO 16 DVR
(KHP-MO 16 DVR)
KHPS-MO 12 DTR
(KHP-MO 12 DTR)
KHPS-MO 14 DTR
(KHP-MO 14 DTR)
KHPS-MO 16 DTR
(KHP-MO 16 DTR)

CONTENTS
1 SAFETY PRECAUTIONS............................................................................................ 02
2 GENERAL INTRODUCTION ..................................................................................... 04
3 ACCESSORIES ............................................................................................................... 06
• 3.1 Accessories supplied with the unit ............................................................................... 06
• 3.2 Accessories avaliable from supplier............................................................................. 06
4 BEFORE INSTALLATION .......................................................................................... 06
5 IMPORTANT INFORMATION FOR THE REFRIGERANT........................... 07
6 INSTALLATION SITE
• 6.1 Selecting a location in cold climates ........................................................................... 09
• 6.2 Selecting a location in hot climates.............................................................................. 09
7 INSTALLATION PRECAUTIONS
• 7.1 Dimensions .................................................................................................................. 10
• 7.2 Installation requirements ............................................................................................. 10
• 7.3 Drain hole position ........................................................................................................11
• 7.4 Servicing space requirements ......................................................................................11
8 TYPICAL APPLICATIONS
• 8.1 Application 1................................................................................................................. 12
• 8.2 Application 2................................................................................................................. 13
• 8.3 Application 3................................................................................................................. 15
• 8.4 Application 4................................................................................................................. 16
• 8.5 Application 5 ................................................................................................................ 17
• 8.6 Application 6................................................................................................................. 20
• 8.7 Application 7................................................................................................................. 22
• 8.8 Application 8................................................................................................................. 23
9 OVERVIEW OF THE UNIT
• 9.1 Disassembling the unit................................................................................................. 24
• 9.2 Main components......................................................................................................... 25
• 9.3 Electronic control box................................................................................................... 27
• 9.4 Water piping ................................................................................................................. 34
• 9.5 Adding water ................................................................................................................ 38
• 9.6 Water piping insulation................................................................................................. 39
• 9.7 Field wiring................................................................................................................... 39

10 START-UP AND CONFIGURATION
• 10.1 Climate related curves ................................................................................................. 50
• 10.2 DIP switch settings overview ....................................................................................... 52
• 10.3 Initial start-up at low outdoor ambient temperature ..................................................... 52
• 10.4 Pre-operation checks ................................................................................................... 52
• 10.5 Powering up the unit .................................................................................................... 53
• 10.6 Setting the pump speed .............................................................................................. 53
• 10.7 Field settings ................................................................................................................ 54
11 TEST RUN AND FINAL CHECKS
• 11.1 Final checks ................................................................................................................ 66
• 11.2 Test run operation (manually)....................................................................................... 66
12 MAINTENANCE AND SERVICE.............................................................................. 66
13 TROUBLE SHOOTING
• 13.1 General guidelines ....................................................................................................... 67
• 13.2 General symptoms ....................................................................................................... 68
• 13.3 Operation parameter .................................................................................................... 70
• 13.4 Error codes................................................................................................................... 71
14 TECHNICAL SPECIFICATIONS
• 14.1 General ........................................................................................................................ 77
• 14.2Electricalspecications ................................................................................................ 77
15 REPLACEMENT OF SAFETY VALVE (Only for 12~16kW units).......... 78
16 INFORMATION SERVICING...................................................................................... 78

01

12/14/16 kW
5/7/9 kW
12/14/16 kW
5/7/9 kW
Please remove the hollow
plate after installation.
Wiring diagram:12~16kW(3-phase) for example
Electric Control System
Terminal Block
Hydraulic System
Refrigerant System
Installation fitting
x2
Unit
1-phase 3-phase
5 7 9 12 14 16 12 14 16
Capacity
of backup
heater
3kW 3kW or 4.5kW 4.5kW
Backup heater(optional)
The standard unit is without backup heater. Backup heater kit is an optional part for 5,7,9kW models. Backup heater can be
integrated in the unit for customized models(12,14,16kW).
If the backup heater is installed, the port (CN6) for T1 in the main control board of hydraulic compartment should connect to
the corresponding port in the backup heater kit (more details please refer to 9.2.2 Hydraulic system diagram).
01
NOTE
The picture and function described in this manual contain the backup heater components.

WARNING Thissymbolshowsthatthisapplianceusedaammablerefrigerant.Iftherefrigerantis
leakedandexposedtoanexternalignitionsource,thereisariskofre.
CAUTION This symbol shows that the operation manual should be read carefully.
CAUTION This symbol shows that a service personnel should be handling this equipment with
reference to the installation manual.
CAUTION This symbol shows that a service personnel should be handling this equipment with
reference to the installation manual.
CAUTION This symbol shows that information is available such as the operating manual or
installation manual.
02 03
WARNING
DANGER
WARNING
CAUTION
NOTE
Servicing shall only be performed as recommended by the equipment manufacturer. Maintenance and repair requiring
the assistance of other skilled personnel shall be carried out under the supervision of the person competent in the use of
ammablerefrigerants.
Indicates an imminently hazardous situation which if not avoided, will result in serious injury.
Indicates a potentially hazardous situation which if not avoided, could result in serious injury.
Indicates situations that could only result in accidental equipment or property damage.
Indicates a potentially hazardous situation which if not avoided, may result in minor or moderate injury.
It is also used to alert against unsafe practices.
i
INFORMATION
●Read these instructions carefully before installation. Keep this manual in a handy for future reference.
● Improperinstallationofequipmentoraccessoriesmayresultinelectricshock,short-circuit,leakage,reorother
damagetotheequipment.Besuretoonlyuseaccessoriesmadebythesupplier,whicharespecicallydesignedfor
the equipment and make sure to get installation done by a professional.
●All the activities described in this manual must be carried out by a licensed technician. Be sure to wear adequate
personal protection equipment such as gloves and safety glasses while installation the unit or carrying out
maintenance activities.
●Contact your dealer for any further assistance.
1 SAFETY PRECAUTIONS
The precautions listed here are divided into the following types. They are quite important, so be sure to follow them carefully.
Meanings of DANGER, WARNING, CAUTION and NOTE symbols.
Caution:Riskofre/
ammablematerials
Explanation of symbols displayed on the indoor unit or outdoor unit

02 03
DANGER
●Before touching electric terminal parts, turn off power switch.
●When service panels are removed, live parts can be easily touched by accident.
●Never leave the unit unattended during installation or servicing when the service panel is removed.
●Do not touch water pipes during and immediately after operation as the pipes may be hot and could burn your
hands. To avoid injury, give the piping time to return to normal temperature or be sure to wear protective gloves.
Donottouchanyswitchwithwetngers.Touchingaswitchwithwetngerscancauseelectricalshock.
●Before touching electrical parts, turn off all applicable power to the unit.
WARNING
●Tear apart and throw away plastic packaging bags so that children will not play with them. Children playing with
plastic bags face danger of by suffocation.
●Safely dispose of packing materials such as nails and other metal or wood parts that could cause injuries.
● Askyourdealerorqualiedpersonneltoperforminstallationworkinaccordancewiththismanual.Donotinstallthe
unityourself.Improperinstallationcouldresultinwaterleakage,electricshocksorre
● Besuretouseonlyspeciedaccessoriesandpartsforinstallationwork.Failuretousespeciedpartsmayresultin
waterleakage,electricshocks,re,ortheunitfallingfromitsmount.
● Installtheunitonafoundationthatcanwithstanditsweight.Insufcientphysicalstrengthmaycausetheequipment
to fall and possible injury.
● Performspeciedinstallationworkwithfullconsiderationofstrongwind,hurricanes,orearthquakes.Improper
installation work may result in accidents due to equipment falling.
● Makecertainthatallelectricalworkiscarriedoutbyqualiedpersonnelaccordingtothelocallawsandregulations
andthismanualusingaseparatecircuit.Insufcientcapacityofthepowersupplycircuitorimproperelectrical
constructionmayleadtoelectricshocksorre.
●Be sure to install a ground fault circuit interrupter according to local laws and regulations. Failure to install a ground
faultcircuitinterruptermaycauseelectricshocksandre.
● Makesureallwiringissecure.Usethespeciedwiresandensurethatterminalconnectionsorwiresareprotected
fromwaterandotheradverseexternalforces.Incompleteconnectionorafxingmaycauseare.
●When wiring the power supply, form the wires so that the front panel can be securely fastened. If the front panel is not
inplacetherecouldbeoverheatingoftheterminals,electricshocksorre.
●After completing the installation work, check to make sure that there is no refrigerant leakage.
●Never directly touch any leaking refrigerant as it could cause severe frostbite. Do not touch the refrigerant pipes
during and immediately after operation as the refrigerant pipes may be hot or cold, depending on the condition of the
refrigerantowingthroughtherefrigerantpiping,compressorandotherrefrigerantcycleparts.Burnsorfrostbiteare
possible if you touch the refrigerant pipes. To avoid injury, give the pipes time to return to normal temperature or, if
you must touch them, be sure to wear protective gloves.
●Do not touch the internal parts (pump, backup heater, etc.) during and immediately after operation. Touching the
internal parts can cause burns. To avoid injury, give the internal parts time to return to normal temperature or, if you
must touch them, be sure to wear protective gloves.
CAUTION
●Ground the unit.
●Grounding resistance should be according to local laws and regulations.
●Do not connect the ground wire to gas or water pipes, lightning conductors or telephone ground wires.
●Incomplete grounding may cause electric shocks.
- Gas pipes: Fire or an explosion might occur if the gas leaks.
- Water pipes: Hard vinyl tubes are not effective grounds.
- Lightning conductors or telephone ground wires: Electrical threshold may rise abnormally if struck by a
lightning bolt.
●Install the power wire 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sufcienttoeliminatethenoise.)
● Donotwashtheunit.Thismaycauseelectricshocksorre.Theappliancemustbeinstalledinaccordance
with national wiring regulations. 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.

NOTE
04 05
●About Fluorinated Gasses
-Thisair-conditioningunitcontainsuorinatedgasses.Forspecicinformationonthetypeofgasandtheamount,
please refer to the relevant label on the unit itself. Compliance with national gas regulations shall be observed.
-Installation,service,maintenanceandrepairofthisunitmustbeperformedbyacertiedtechnician.
-Productuninstallationandrecyclingmustbeperformedbyacertiedtechnician.
- If the system has a leak-detection system installed, it must be checked for leaks at least every 12 months. When
the unit is checked for leaks, proper record-keeping of all checks is strongly recommended.
●Do not install the unit in the following places:
- Where there is mist of mineral oil, oil spray or vapors. Plastic parts may deteriorate, and cause them to come
loose or water to leak.
- Where corrosive gases (such as sulphurous acid gas) are produced. Where corrosion of copper pipes or soldered
parts may cause refrigerant to leak.
- Where there is machinery which emits electromagnetic waves. Electromagnetic waves can disturb the control
system and cause equipment malfunction.
-Whereammablegasesmayleak,wherecarbonberorignitabledustissuspendedintheairorwherevolatile
ammablessuchaspaintthinnerorgasolinearehandled.Thesetypesofgasesmightcauseare.
- Where the air contains high levels of salt such as near the ocean.
-Wherevoltageuctuatesalot,suchasinfactories.
- In vehicles or vessels.
- Where acidic or alkaline vapors are present.
●This appliance can be used by children 8 years old and above and persons with reduced physical, sensory or
mental capabilities or lack of experience and knowledge if they are supervised or given instruction on using the unit
in a safe manner and understand the hazards involved. Children should not play with the unit. Cleaning and user
mainte-nance should not be done by children without supervision.
●Children should be supervised to ensure that they do not play with the appliance.
Ifthesupplycordisdamaged,itmustbereplacedbythemanufactureroritsserviceagentorasimilarlyqualied
person.
●DISPOSAL: Do not dispose this product as unsorted municipal waste. Collection of such waste seperatelly for
special treatment is necessary. Do not dispose of electrical appliances as municipal waste, use seperate collection
facilities. Contact your local government for information regarding the collection systems available. If electrical
appliancesaredisposedofinlandllsordumps,hazardoussubstancecanleakintothegroudwaterandgetintothe
food chain, damaging your health and well-being.
●The wiring must be performed by professional technicians in accordance with national wiring regulation and this
circuit diagram. An all-pole disconnection device which has at least 3mm seperation distance in all pole and a
residualcurrentdevice(RCD)withtheratingnotexceeding30mAshallbeincorporatedinthexedwiringaccording
to the national rule.
● Conrmthesafetyoftheinstallationarea(walls,oors,etc.)withouthiddendangerssuchaswater,electricity,and
gas. Before wiring/pipes.
●Before installation , check whether the user's power supply meets the electrical installation requirements of
unit (including reliable grounding , leakage , and wire diameter electrical load, etc. ). If the electrical installation
requirementsoftheproductarenotmet,theinstallationoftheproductisprohibiteduntiltheproductisrectied.
● Wheninstallingmultipleairconditionersinacentralizedmanner,pleaseconrmtheloadbalanceofthethree-
phase power supply, and multiple units are prevented from being assembled into the same phase of the three-
phase power supply.
●Product installation shouldbexedrmly,Takereinforcementmeasures,whennecessary.
2 GENERAL INTRODUCTION
● Theseunitsareusedforbothheatingandcoolingapplications.Theycanbecombinedwithfancoilunits,oorheating
applications,lowtemperaturehighefciencyradiators,domestichotwatertanks(eldsupply)andsolarkits(eld
supply).
●A wired controller is supplied with the unit.
●If you choose the built-in backup heater unit, the backup heater can increase the heating capacity during cold outdoor
temperatures. The backup heater also serves as a backup in case of malfunctioning and for freeze protection of the
outside water piping during winter time. The capacity of backup heater for different units is listed below.

Tbivalent Outdoor temperature
Capacity/Load
③
②①
Temperature
probe(T5)
Coil
Outlet
Booster heater
(TBH)
Inlet
*The maximum operating temperature of the
5/7/9kW model is 43°C
COOLING MODE
5 10 25 50
46
*43
20
-5
10
Outdoor temperature(°C)
Water flow temperature (°C)
HEATING MODE
5 12 25 35 55 60
-25
-10
30
35
Outdoor temperature(°C)
Water flow temperature (°C)
DOMESTIC WATER HEATING MODE
5 12 25 35 50 60
-25
30
43
-10
Outdoor temperature(°C)
Water flow temperature (°C)
Unit 5~9
kW
12~16
kW
Volume of tank/L Minimum 100 200
Recommended 200 300
Heat
exchanger
(Stainless
steel coil)
Heat
exchange
area/m2
Minimum 1.4 1.75
Recommended 2.5 4
Volume/L Minimum 12 14
Recommended 20 32
Heat
exchanger
(Enamel
coil)
Heat
exchange
area/m2
Minimum 1.7 2.5
Recommended 3 5.6
Volume/L Minimum 14 20
Recommended 24 45
04 05
①Heat pump capacity.
②Required heating capacity (site dependent).
③Additional heating capacity provided by backup heater.
● Domestichotwatertank(eldsupply)
A domestic hot water tank(with or without booster
heater) can be connected to the unit.
The requirement of the tank is different for different unit
and material of heat exchanger.
If the tank volume is greater than 240L, the temperature
probe (T5) should be installed at a position higher than
half of the tank's height.
If the tank volume is less than 240L, the temperature
probe should be installed at a position higher than 2/3 of
the tank's height.
The booster heater should be installed below the
temperature probe.
The heat exchanger (coil) should be installed below the
temperature probe.
The pipe length between the outdoor unit and tank should
be less than 5 meters.
● Roomthermostat(eldsupply)
●Room thermostat can be connected to the unit(room
thermostat should be kept away from heating source
when selecting the installation place).
● Solarkitfordomestichotwatertank(eldsupply)An
optional solar kit can be connected to the unit.
● Remotealarmkit(eldsupply)
A remote alarm kit can be connected to the unit.
●Operation range
No heat pump operation, backup heater or boiler
only
Waterowtemperaturedroporriseinterval

Installation Fittings
Name Shape Quantity
5~9kW12~16kW
Installation and owner's
manual (this book) 1 1
Operation manual 1 1
Technical data manual 1 1
Y-shapelter 1 1
Water outlet connection
pipe assembly 2 1
Wired controller 1 1
Tighten belt for
customer wiring use
0 2
3 3
Thermistor for domestic
hot water tank or
additional heating
source*
1 1
Extension wire for T5 1 1
06 07
The unit have a freeze prevention function that uses the
heat pump and backup heater (Customized model) to keep
the water system safe from freezing in all conditions. Since
a power failure may happen when the unit is unattended,
It'ssuggestedtouseanti-freezingowswitchinthewater
system. (Refer to 9.4 Water piping).
Incoolingmode,theminimumleavingwaterow
temperature(T1stoph) that the unit can reach in different
outdoor temperature(T4) is listed below:
Outdoor temp. (°C) ≤10 11 12 13
Waterowtemp.(°C) 10 9 9 8
Outdoor temp. (°C) 14 15 16 17
Waterowtemp.(°C) 8 7 7 6
Outdoor temp. (°C) 18 19 20 ≥21
Waterowtemp.(°C) 6 6 5 5
Inheatingmode,themaximumleavingwaterow
temperature (T1stoph) that heat pump can reach in
different outdoor temperature (T4) is listed below:
Outdoor temp. (°C) -25 -24 -23 -22
Waterowtemp.(°C) 35 35 35 37
Outdoor temp. (°C) -21 -20 -19 -18
Waterowtemp.(°C) 39 40 42 44
Outdoor temp. (°C) -17 -16 -15 -14
Waterowtemp.(°C) 46 48 50 52
Outdoor temp. (°C) -13 -12 -11 -10~30
Waterowtemp.(°C) 54 56 58 60
Outdoor temp. (°C) 31 32 33 34
Waterowtemp.(°C) 59 58 57 56
Outdoor temp. (°C) 35 36 37 38
Waterowtemp.(°C) 55 55 55 55
Outdoor temp. (°C) 39 40 41 42
Waterowtemp.(°C) 54 53 52 51
Outdoor temp. (°C) 43 44 45 46
Waterowtemp.(°C) 50 50 50 50
In DHW mode, the maximum domestic hot water
temperature(T5stop) that heat pump can reach in different
outdoor temperature(T4) is listed below:
Outdoor temp. (°C) -25~-
16
-15~-
11
-10~-
6-5~-1
DHW Water
owtemp.
(°C)
5~9kW 45 48 50 52
12~16kW 40 45 48 50
Outdoor temp. (°C) 0~4 5~14 15~19 20~24
DHW Water
owtemp.
(°C)
5~9kW 55 55 55 52
12~16kW 53 55 55 50
Outdoor temp. (°C) 25~29 30~34 35~39 40~43
DHW Water
owtemp.
(°C)
5~9kW 50 50 48 45
12~16kW 50 48 48 45
3 ACCESSORIES
3.1 Accessories supplied with the unit
The thermistor can be used to detect temperature
of water. If domestic hot water tank is installed only,
the thermistor can work as T5. If boiler is installed
only, the thermistor can worke as T1B. If both unit are
installed, an additional thermistor is needed(please
contact the supplier).The thermistor should connect
to the corresponding port in the main control board of
hydraulic(refer to 9.3.1 Main control board of hydraulic
module).
3.2 Accessories available from
supplier
NAME SHAPE
Water temperature thermistor(T1B)
Extension wire(for T1B)
4 BEFORE INSTALLATION
●Before installation
Besuretoconrmthemodelnameandtheserialnumberoftheunit.
●Handling
Due to relatively large dimensions and heavy weight, the unit should only be handled using lifting tools with slings. The
slingscanbettedintoforeseensleevesatthebaseframethataremadespecicallyforthispurpose.

The hook and barycenter of
the unit should be on a line
in vertical direction to
prevent improper inclination
Make the rope go through
the lifting holes from both
the right and left sides in the
wooden collet
≥1000mm
5/7/9 kW (unit:mm)
540
540
234 707
222.5
605
641
605
12/14/16 kW (unit:mm)
06 07
CAUTION
● Toavoidinjury,donottouchtheairinletoraluminiumnsoftheunit.
●Do not use the grips in the fan grills to avoid damage.
●The unit is top heavy! Prevent the unit from falling due to improper inclination during handling.
The position of barycenter for different unit can be seen in the picture below.
5 IMPORTANT INFORMATION FOR THE REFRIGERANT
Thisproducthastheuorinatedgas,itisforbiddentoreleasetoair.
Refrigerant type: R32; Volume of GWP: 675.
GWP=Global Warming Potential
Model Factory charged refrigerant volume in the unit
Refrigerant/kg Tonnes CO2equivalent
5kW 2.00 1.35
7kW 2.00 1.35
9kW 2.00 1.35
12kW 2.80 1.89
14kW 2.80 1.89
16kW 2.80 1.89

08 09
WARNING
● Thereisammablerefrigerantintheunitanditshouldbeinstalledinawell-ventilatedsite.Iftheunitisinstalled
inside, an additional refrigerant detection device and ventilation equipment must be added in accordance with the
standard EN378. Be sure to adopt adequate measures to prevent the unit from being used as a shelter by small
animals.
● Smallanimalsmakingcontactwithelectricalpartscancausemalfunction,smokeorre.Pleaseinstructthe
customer to keep the area around the unit clean.
CAUTION
●Frequency of Refrigerant Leakage Checks
-Forunitthatcontainsuorinatedgreenhousegasesinquantitiesof5tonnesofCO2equivalent or more,but of less
than 50 tonnes of CO2equivalent,at least every 12 months, or where a leakage detection system is installed, at
least every 24 months.
-Forunitthatcontainsuorinatedgreenhousegasesinquantitiesof50tonnesofCO2equivalent or more, but of
less than 500 tonnes of CO2equivalentat least every six months, or where a leakage detection system is installed,
at least every 12 months.
-Forunitthatcontainsuorinatedgreenhousegasesinquantitiesof500tonnesofCO2equivalent or more,at least
every three months, or where a leakage detection system is installed,at least every six months.
-Thisair-conditioningunitisahermeticallysealedequipmentthatcontainsuorinatedgreenhousegases.
-Onlycerticatedpersonisallowedtodoinstallation,operationandmaintenance.
6 INSTALLATION SITE
● Selectaninstallationsitewherethefollowingconditionsaresatisedandonethatmeetswithyourcustomer'sapproval.
- Places that are well-ventilated.
- Places where the unit does not disturb next-door neighbors.
- Safe places which can bear the unit's weight and vibration and where the unit can be installed at an even level.
-Placeswherethereisnopossibilityofammablegasorproductleak.
- The equipment is not intended for use in a potentially explosive atmosphere.
- Places where servicing space can be well ensured.
- Places where the units' piping and wiring lengths come within the allowable ranges.
- Places where water leaking from the unit cannot cause damage to the location (e.g. in case of a blocked drain pipe).
- Places where rain can be avoided as much as possible.
- Do not install the unit in places often used as a work space. In case of construction work (e.g. grinding etc.) where a lot
of dust is created, the unit must be covered.
- 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.
-Besurethatsufcientprecautionsaretakenincaseofrefrigerantleakageaccordingtorelevantlocallawsand
regulations.
- Don't install the unit near the sea or where there is corrosion gas.
●When installing the unit in a place exposed to strong wind, pay special attention to the following.
●Strong winds of 5 m/sec or more blowing against the unit's air outlet causes a short circuit (suction of discharge air), and
this may have the following consequences:
- Deterioration of the operational capacity.
- Frequent frost acceleration in heating operation.
- Disruption of operation due to rise of high pressure.
- When a strong wind blows continuously on the front of the unit, the fan can start rotating very fast until it breaks.
Innormalcondition,refertotheguresbelowforinstallationoftheunit:

A
B
●Unit is top heavy!
●Try not to install on the building frame.
①
②
08 09
NOTE
NOTE
Unit B(mm)
5~9kW ≥300
12~16kW ≥300
In case of strong wind and the wind direction can be
foreseen,refertotheguresbelowforinstallationofthe
unit(any one is OK):
Turn the air outlet side toward the building's wall, fence or
screen.
Unit B(mm)
5~9kW ≥1000
12~16kW ≥1500
Make sure there is enough room to do the installation.
Set the outlet side at a right angle to the direction of the
wind.
●Prepare a water drainage channel around the
foundation, to drain waste water from around the unit.
●If water does not easily drain from the unit, mount
the unit on a foundation of concrete blocks, etc.
(the height of the foundation should be about 100 mm
(3.93 in).
●If you install the unit on a frame, please install a
waterproof plate (about 100 mm) on the underside of
the unit to prevent water from coming in from the low
side.
●When installing the unit in a place frequently
exposed to snow, pay special attention to elevate the
foundation as high as possible.
●If you install the unit on a building
frame, please install a waterproof
plate(eldsupply)(about100mm,
on the underside of the unit) in
order to avoid drain water dripping.
(See the picture in the right).
6.1 Selecting a location in cold
climates
Refer to "Handling" in section "4 Before installation"
①Construct a large canopy.
②Construct a pedestal.
Install the unit high enough off the ground to prevent it
from being buried in snow.
6.2 Selecting a location in hot
climates
As the outdoor temperature is measured via the outdoor
unit air thermistor, make sure to install the outdoor
unit in the shade or a canopy should be constructed to
avoiddirectsunlight,sothatitisnotinuencedbythe
sun's heat, otherwise protection may be possible to the
unit.
●To prevent exposure to wind, install the unit with its
suction side facing the wall.
●Never install the unit at a site where the suction
side may be exposed directly to wind.
● Topreventexposuretowind,installabafeplate
on the air discharge side of the unit.
●In heavy snowfall areas, it is very important to
select an installation site where the snow will not
affect the unit. If lateral snowfall is possible, make
sure that the heat exchanger coil is not affected by
the snow (if necessary construct a lateral canopy).
When operating the unit in cold climates, be sure
to follow the instructions described below.

H
J
I
H
J
I
E D
B
FGC
A
E D
B
F
C
A
Concrete
basement
h≥100mm
Rubber
shocking
proof mat
≥100
≥80
Φ10 Expansion
bolt
Solid
ground
or roofing
Model A B C D E F G H I J
5/7/9kW 1210 374 402 502 404 215 277 945 165 59
12/14/16kW 1404 373 405 760 361 280 / 1414 176 144
10 11
7 INSTALLATION PRECAUTIONS
7.1 Dimensions
5/7/9 kW (unit: mm) 12/14/16 kW (unit: mm)
7.2 Installation requirements
●Check the strength and level of the installation ground so that the unit may not cause any vibrations or noise during its
operation.
● Inaccordancewiththefoundationdrawinginthegure,xtheunitsecurelybymeansoffoundationbolts.(Preparefour
setseachofΦ10Expansionbolts,nutsandwasherswhicharereadilyavailableinthemarket.)
●Screw in the foundation bolts until their length is 20 mm from the foundation surface.
(unit: mm)

12/14/16 kW
5/7/9 kW
This drain hole is
covered by rubber
plug. If the small
drain hole can not
meet the drainage
requirements, the big
drain hole can be
used at the same
time.
Drain hole
Drain hole
This drain hole is covered by rubber
plug. If the small drain hole can not
meet the drainage requirements, the
big drain hole can be used at the same
time.
It's necessary to install an electrical heating belt if water can't drain out in cold weather even the big drain hole has
opened.
≥500mm
A
≥200mm
≥500mm
≥20mm
≥300mm
10 11
NOTE
7.3 Drain hole position
7.4 Servicing space requirements
7.4.1 In case of stacked installation
1) In case obstacles exist in front of the outlet side. 2) In case obstacles exist in front of the air inlet.
Unit A(mm)
5~9kW ≥1000
12~16kW ≥1500
7.4.2 In case of multiple-row installation (for roof top use, etc.)
1) In case of installing one unit per row.

＜1/2 H
B2
A
B1
C
H
Unit A(mm) B1(mm) B2(mm) C(mm)
5~9kW ≥1500 ≥500 ≥150 ≥300
12~16kW ≥2000 ≥1000 ≥150 ≥300
≥500mm
≥500mm
＜1/2 H
B2
A
B1
C
H
Unit A(mm) B1(mm) B2(mm) C(mm)
5~9kW ≥2500 ≥1000 ≥300 ≥600
12~16kW ≥3000 ≥1500 ≥300 ≥600
12 13
2) In case of installing multiple units in lateral connection per row.
8 TYPICAL APPLICATIONS
The application examples given below are for illustration only.
8.1 Application 1
Space heating with a room thermostat connected to the unit.

1
1.6
1.5
1.4 1.2
1.3
1.8
1.7
1.1
8.1
8.2
236 7 8
FHL1 FHL2 FHLn----
----
9
T
10 11
4
5
Coding Assembly unit Coding Assembly unit
1 Outdoor unit 4 Wired controller
1.1 Manometer 5 Roomthermostat(eldsupply)
1.2 Pressure relief valve 6 Drainvalve(eldsupply)
1.3 Expansion vessel 7 Fillvalve(eldsupply)
1.4 Plate heat exchanger 8 Balancetank(eldsupply)
1.5 Backup heater（Customized model）8.1 Air purge valve
1.6 Air purge valve 8.2 Drain valve
1.7 Flow switch 9 Expansionvessel(eldsupply)
1.8 P_i: Circulation pump inside the unit 10 P_o:Outsidecirculationpump(eldsupply)
2Y-shapelter 11 Collector(eldsupply)
3Stopvalve(eldsupply) FHL 1…n Floorheatingloop(eldsupply)
12 13
NOTE
The volume of balance tank(8) should be greater than 40L (for 5~9kW unit, greater than 20L) The drain valve (6) should
be installed at the lowest position of the system. An independent backup heater can be selected and installed in the
door. Pump_o(10) should be controlled by outdoor unit and connect to corresponding port in the outdoor unit(refer to 9.7.6
Connection for other components/For outside circulation pump P_o).
NOTE
Make sure to connect the thermostat wires to the correct terminals, method B should be selected (see "For room
thermostat"in9.7.6connectionforothercomponents).TocorrectlyconguretheROOMTHERMOSTATintheFOR
SERVICEMAN mode see 10.7 Field settings/ROOM THERMOSTAT.
Unit operation and space heating:
When a room thermostat is connected to the unit and when there is a heating request from the room thermostat, the unit will
startoperatingtoachievethetargetwaterowtemperatureassetontheuserinterface.Whentheroomtemperatureisabove
the thermostat set point in the heating mode, the unit will stop operating. The circulation pump (1.8) and (10) will also stop
running. The room thermostat is used as a switch here.
8.2 Application 2
Space heating without room thermostat connected to the unit. Domestic hot water is provided through the domestic hot water
tank that is connected to the unit.

1
1.6
1.5
1.4 1.2
1.3
1.8
1.7
1.1
FHL1 FHL2 FHLn----
----
12.1
12.2
12.3
236 7
8.1
8.2
8
9
12
13
14
15
16
10
11
17
4
18
Coding Assembly unit Coding Assembly unit
1 Outdoor unit 8.2 Drain valve
1.1 Manometer 9 Expansionvessel(eldsupply)
1.2 Pressure relief valve 10 P_o:Outsidecirculationpump(eldsupply)
1.3 Expansion vessel 11 Collector(eldsupply)
1.4 Plate heat exchanger 12 Domestichotwatertank(eldsupply)
1.5 Backup heater（Customized model）12.1 Air purge valve
1.6 Air purge valve 12.2 Heat exchanger coil
1.7 Flow switch 12.3 Booster heater
1.8 P_i: Circulation pump inside the unit 13 T5: temperature sensor
2Y-shapelter 14 Hotwatertap(eldsupply)
3Stopvalve(eldsupply) 15 P_d:DHWpump(eldsupply)
4 Wired controller 16 Onewayvalve(eldsupply)
6Drainvalve(eldsupply) 17 Bypassvalve(eldsupply)
7Fillvalve(eldsupply) 18 SV1:3-wayvalve(eldsupply)
8Balancetank(eldsupply) FHL 1…n Floorheatingloop(eldsupply)
8.1 Air purge valve / /
14 15
NOTE
The volume of balance tank(8) should be greater than 40L (for 5~9kW unit, greater than 20L) The drain valve (6) should
be installed at the lowest position in the system. An independent backup heater can be selected and installed in the
door. Pump(10) should be controlled by outdoor unit and connect to corresponding port in the outdoor unit (refer to 9.7.6
Connection for other components/For outside circulation pump P_o).
• Circulation pump operation
The circulation pump (1.8) and (10) will operate as long as the unit is on for space heating.
The circulation pump (1.8) will operate as long as the unit is on for heating domestic hot water (DHW).
• Space heating
1)Theunit(1)willoperatetoachievethetargetwaterowtemperaturesetonthewiredcontroller.
2)Thebypassvalveshouldbeselectedsothatatalltimestheminimumwaterowasmentionedin9.4Waterpipingis
guaranteed.
• Domestic water heating
1) When the domestic water heating mode is enabled (either manually by the user, or automatically through scheduling)
the target domestic hot water temperature will be achieved by a combination of the heat exchanger coil and the
electrical booster heater (when the booster heater in the tank is set to YES).
2)Whenthedomestichotwatertemperatureisbelowtheuserconguredsetpoint,the3-wayvalvewillbeactivated
to heat the domestic water by means of the heat pump. If there is a huge demand for hot water or a high hot water
tempera-ture setting, the booster heater (12.1) can provide auxiliary heating.

1
1.6
1.5
1.4 1.2
1.3
1.8
1.7
1.1
FHL1 FHL2 FHLn----
----
FCU1 FCU2 FCUn----
----
236 7
8.1
8.2
8
12.1
12.2
12.3
12
T
13
14
15
16
11
11
1910
9
4
5
18
Coding Assembly unit Coding Assembly unit
1 Outdoor unit 8.2 Drain valve
1.1 Manometer 9 Expansionvessel(eldsupply)
1.2 Pressure relief valve 10 P_o:Outsidecirculationpump(eldsupply)
1.3 Expansion vessel 11 Collector(eldsupply)
1.4 Plate heat exchanger 12 Domestichotwatertank(eldsupply)
1.5 Backup heater（Customized model）12.1 Air purge valve
1.6 Air purge valve 12.2 Heat exchanger coil
1.7 Flow switch 12.3 Booster heater
1.8 P_i: Circulation pump inside the unit 13 T5: temperature sensor
2Y-shapelter 14 Hotwatertap(eldsupply)
3Stopvalve(eldsupply) 15 P_d:DHWpump(eldsupply)
4 Wired controller 16 Onewayvalve(eldsupply)
5Roomthermostat(eldsupply) 18 SV1:3-wayvalve(eldsupply)
6Drainvalve(eldsupply) 19 SV2:2-wayvalve(eldsupply)
7Fillvalve(eldsupply) FHL 1…n Floorheatingloop(eldsupply)
8Balancetank(eldsupply) FCU 1...n Fancoilunits(eldsupply)
8.1 Air purge valve / /
14 15
NOTE
Theunitcanbeconguredsothatatlowoutdoortemperatures,waterisexclusivelyheatedbytheboosterheater.This
assures that the full capacity of the heat pump is available for space heating.
Detailsondomestichotwatertankcongurationforlowoutdoortemperatures(T4DHWMIN)canbefoundin10.7Field
settings/How to set the DHW MODE.
CAUTION
Makesuretotthe3-wayvalvecorrectly.Formoredetails,referto9.7.6Connectionforothercomponents/For3-way
valve SV1.
8.3 Application 3
Space cooling and heating application with a room thermostat suitable for heating/cooling changeover when connected to the
unit.Heatingisprovidedthroughoorheatingloopsandfancoilunits.Coolingisprovidedthroughthefancoilunitsonly.
Domestic hot water is provided through the domestic hot water tank which is connected to the unit.

1
1.6
1.5
1.4 1.2
1.3
1.8
1.7
1.1
FHL1 FHL2 FHLn----
----
FCU1 FCU2 FCUn----
----
19
236 7
8.1
8.2
8
9
10 11
11
4
17
16 17
NOTE
The volume of balance tank(8) should be greater than 40L (for 5~9kW unit, greater than 20L) The drain valve (6) should
be installed at the lowest position of the system. An independent backup heater can be selected and installed in the
door. Pump(10) should be controlled by outdoor unit and connect to corresponding port in the outdoor unit(refer to 9.7.6
Connection for other components/For outside circulation pump P_o).
CAUTION
MakesuretoconnectthethermostatwirestothecorrectterminalsandtoconguretheROOMTHERMOSTATinthe
wired controller correctly (see 10.7 Field settings/ROOM THERMOSTAT). Wiring of the room thermostat should follow
method A as described in 9.7.6 connection for other components/For room thermostat.
Wiring of the 2-way valve (19) is different for a NC (normal closed) valve and a NO (normal open) valve! Make sure to
connect to the correct terminal numbers as detailed on the wiring diagram.
• Pump operation and space heating and cooling
The unit will switch to either heating or cooling mode according to the setting of room thermostat. When space heating/
cooling is requested by the room thermostat (5), the pump will start operating and the unit (1) will switch to heating mode/
cooling mode. The unit (1) will operate to achieve the target cold/hot water leaving temperature. In the cooling mode. the
motorized2-wayvalve(19)willclosetopreventcoldwaterrunningthroughtheoorheatingloops(FHL).
The ON/OFF setting of the heating/cooling operation cannot be done on the user interface, the target outlet water temperature
should be set in the user interface.
• Domestic water heating
Domestic water heating is as described in 8.2 Application 2.
8.4 Application 4
Space cooling and heating without a room thermostat connected to the unit. The temperature sensor Ta attached in the user
interfaceisusedtocontroltheON/OFFoftheunit.Heatingisprovidedthroughoorheatingloopsandfancoilunits.Cooling
is provided through fan coil units only.