Gree LSQWRF130VM/NhA-M Installation manual

Installation, Startup and Maintenance Manual
Change for life
A Series Inverter Modular Air-cooled Chiller (Heat Pump)
Model:
LSQWRF35VM/NhA-M
LSQWRF60VM/NhA-M
LSQWRF130VM/NhA-M
Thank you for choosing commercial air conditioners.Please
read this Owner’ s Manual carefully before operation and
If you have lost the Owner's Manual, please contact the
local agent or visit www.gree.com or send an email to

To users
Thank you for selecting Gree’s product. Please read this instruction manual carefully before installing
and using the product, so as to master and correctly use the product. In order to guide you to correctly
install and use our product and achieve expected operating e󰀨ect, we hereby instruct as below:
(1) This equipment should be installed, operated or maintained by the qualied servicemen who have
had specific training. During operation, all safety issues covered in the labels, User’s Manual
and other literature should be followed strictly. This equipment is not intended for use by persons
(including children) with reduced physical, sensory or mental capabilities, or lack of experience and
knowledge, unless they have been given supervision or instruction concerning use of the appliance
by a person responsible for their safety. Children should be supervised to ensure that they do not
play with the appliance.
(2) This product has gone through strict inspection and operational test before leaving the factory. In
order to avoid damage due to improper disassembly and inspection, which may impact the normal
operation of unit, please do not disassemble the unit by yourself. You can contact our designated
dealer or local service center for professional support if necessary.
(3) When the product is faulted and cannot be operated, please contact our designated dealer or local
service center as soon as possible by providing the following information.
1) Contents of nameplate of product (model, cooling/heating capacity, product No., ex-factory date).
2) Malfunction status (specify the situations before and after the error occurs).
(4) All the illustrations and information in the instruction manual are only for reference. In order to make
the product better, we will continuously conduct improvement and innovation without further notice.

Contents
Safety notices (Please be sure to abide)...........................................................1
1General introduction ......................................................................................6
1.1 Product features .....................................................................................6
1.2 Principle diagrams ..................................................................................7
2 Operation range...........................................................................................10
3 Outline dimensions ......................................................................................10
4 Installation instructions.................................................................................12
4.1 Pre-check..............................................................................................12
4.2 Acceptance check.................................................................................12
4.3 Handling and lifting ...............................................................................12
4.4 Installation foundation and service space .............................................13
4.5 Vibration reduction................................................................................16
4.6 Removal of glands on rubber pads before compressor startup ............16
4.7 Installation of the water system.............................................................17
5 Introduction to the display panel ..................................................................19
6 Electric wiring...............................................................................................19
6.1 External wiring of the electric control cabinet........................................19
6.2 Specication of power supply................................................................24
6.3 Wiring of the electric control cabinet .....................................................24
6.4 Filed wiring............................................................................................26
6.5 Networking and wiring between units....................................................28
6.6 Setup of DIP switches on the motherboard...........................................30
6.7 Jumpers................................................................................................31
7 Commissioning and maintenance ................................................................31
7.1 Check before startup.............................................................................31
7.2 Requirements on water quality and cleaning ........................................31
7.3 Trial run.................................................................................................33
7.4 Routine startup/shutdown .....................................................................33
7.5 Maintenance to the main parts..............................................................34
7.6 Maintenance during long-term downtime ..............................................34
7.7 Startup after long-term shutdown..........................................................34
7.8 Parts replacement.................................................................................34

7.9 Safety operation of ammable refrigerant .............................................35
7.10 Refrigerant charging ...........................................................................36
7.11 Removal of the compressor ................................................................36
7.12 Freeze protection................................................................................37
7.13 Routine maintenance ..........................................................................37
7.14 Precautions.........................................................................................38
8 Troubleshooting and after-sales service.......................................................43
8.1 Troubleshooting measures....................................................................43
8.2 After-sales service ................................................................................45
Appendix A: Inspection records prior to commissioning ..................................46
Appendix B: Trial run and commissioning records ..........................................47

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A Series Inverter Modular Air-cooled Chiller (Heat Pump)
Safety notices (Please be sure to abide)
WARNING: If not abide strictly, it may cause severe damage to the unit or the people.
NOTE: If not abide strictly, it may cause slight or medium damage to the unit or the people.
This sign indicates that the operation must be prohibited. Improper operation may cause severe
damage or death to people.
This sign indicates that the items must be observed. Improper operation may cause damage to
people or property.
Appliance lled with ammable gas R32.
Before use the appliance, read the owner's manual rst.
Before install the appliance, read the installation manual rst.
Before repair the appliance, read the service manual rst.
WARNING
• Appliance lled with ammable gas R32. For repairs, strictly follow manufacturer’s instructions only. Be
aware that refrigerants not contain odour. Read specialist’s manual.
• Do not use means to accelerate the defrosting process or to clean, other than those recommended
by the manufacturer. Should repair be necessary, contact your nearest authorized service centre. Any
repairs carried out by unqualied personnel may be dangerous. The appliance shall be stored in a room
without continuous operating ignition sources. (For example: open ames, an operating gas appliance or
an operating electric heater.) Do not pierce or burn.
• Do not install the unit indoors but outdoors with adequate ventilation.
• If a stationary appliance is not tted with a supply cord and a plug, or with other means for disconnection
from the supply mains having a contact separation in all poles that provides full disconnection under
overvoltage category III conditions, the instructions shall state that means for disconnection must be
incorporated in the xed wiring in accordance with the wiring rules.
• The appliance shall be stored in a room without continuously operating open ames (for example an
operating gas appliance) and ignition sources (such as an operating electric heater).
• The appliance shall be stored so as to prevent mechanical damage from occurring. Do not weld or cut
any pipe, evaporator or condenser etc. when there is refrigerant inside the unit.
• Compliance with national gas regulations shall be observed. Only qualied electricians are allowed to
operate the high-voltage devices.
• Keep ventilation openings clear of obstruction.
• Any person who is involved with working on or breaking into a refrigerant circuit should hold a current
valid certicate from an industry-accredited assessment authority, which authorises their competence to
handle refrigerants safely in accordance with an industry recognised assessment specication.
• 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.

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A Series Inverter Modular Air-cooled Chiller (Heat Pump)
NOTE
• To realize the function of the air conditioner unit, a special refrigerant circulates in the system. The used
refrigerant is the uoride R32, which is specially cleaned. The refrigerant is ammable and inodorous.
Furthermore, it can leads to explosion under certain conditions.
• Compared to common refrigerants, R32 is a nonpolluting refrigerant with no harm to the ozonosphere.
The inuence upon the greenhouse e󰀨ect is also lower. R32 has got very good thermodynamic features
which lead to a really high energy e󰀩ciency. The units therefore need a less lling.
• Before installation, please check if the adopted power is accordance with that listed on nameplate, and
check the safety of power.
• The unit shall contact with the supply mains by a full disconnection device under overvoltage category
Ⅲ.
• Before using, please check and conrm if wires and water pipes are connected correctly to avoid water
leakage, electric shock or re etc.
• Don’t directly expose the unit under the corrosive ambient with water or dampness.
• Never press the button with sharp objects to protect manual controller. Never use other wires instead
of special communication line of the unit to protect control elements. Never clean the manual controller
with benzene, thinner or chemical cloth to avoid fading of surface and failure of elements. Clean the
unit with the cloth soaked in neutral eradicator. Slightly clean the display screen and connecting parts to
avoid fading.
• The power supply line must be separated with the communication line.
◆Safety notices for on-site installation
WARNING
• Installation should be performed by qualied servicemen who have taken specialized training and
acquired corresponding certicates in accordance with relative laws, regulations and this manual,
otherwise it would lead to damage to the unit, water leakage, electrocution, or re hazards etc.
• The unit should be installed on the smooth foundation capable of supporting the unit and xed with
screw bolts. The foundation with inadequate strength would lead to leakage, turn-over or personal injury
or death.
• Special lines should be used for electric installation by qualied electricians. Lines with inadequate
capacity would lead to electrocution or re hazards.
• Make sure each connector is properly tightened; otherwise it would lead to overtemperature or re
hazards etc.
• When installation is nished, please check for the drainage lines, pipelines, and electric lines to prevent
water leakage, electrocution or re hazards.
• The appliance is intended to be permanently connected to the water mains and not connected by a
hose-set.
• This equipment should be installed where the drainage system can work well. Never block the drain hole.
Improper drainage system would lead to drainage di󰀩culty and make the unit su󰀨er from malfunctions.
• When there is something unusual (like stinky smell) during installation or commissioning, please cut o󰀨
the main power at once and then contact the aftersales service center. This ongoing unusual condition
will damage the air conditioning unit and lead to electrocution or re hazards.
• When refrigerant leaks, take corrective measures as soon as possible to prevent oxygen depletion by
increased refrigerant concentration.

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A Series Inverter Modular Air-cooled Chiller (Heat Pump)
NOTE
• Do not install the unit where there is high-intensity magnetic eld or it is highly basic or acid or the voltage
is quietly unstable.
• Do not install the unit where there would be leaked inammable gas, as it would lead to re hazards.
• The outer casing of the unit should be grounded. Do not connect the grounding line to the gas line,
water line, lightning rod or communication line, otherwise it would lead to electric shocks.
• The appliance shall be installed in accordance with national wiring regulations, the appliance shall be
disconnected from its power source during service and when replacing parts.
• Do not stand on the unit or place other object on it.
• Do not insert ngers or other objects into the outlet grill to prevent damage to the unit or personal injury or
death.
• Do not start or stop the unit by inserting or drawing out the power plug.
• Do not let children play with this unit.
• The unit should be equipped with the leakage protector which should be installed in accordance with
electric technical standards. Uninstallation or incorrect installation would lead to electrocution. Do
electric leakage detection after electric installation is nished.
• Volatile liquid like thinner or gasoline would damage appearance of the unit. (Only clean the outer
casing with of the unit with soft dry cloth or wet cloth with neutral detergent.
DANGER
• Do not install the unit where conditions are severe, where it is close to the hot spring, coast or oil eld,
as it would lead to corrosion, electrocution or re hazards. Besides, do not install the unit where there
are corrosive, inammable substances or smog, otherwise it would lead to normal operation failure,
shortened service life, re hazard, or severe injury.
• Do not start the compressor by manually closing the AC contactor, otherwise it would lead to
electrocution or re hazard.
• Do not misuse refrigerant, as it would lead to normal operation failure, unsatisfactory performance, re
hazards or even explosion etc.
！
CAUTION
• Installation should be done in accordance with this manual. Please read it manually prior to startup or
troubleshooting.
• Installation should be done by qualied servicemen, as incorrect installation would lead to water
leakage, electrocution or re hazards etc.
• Before installation, check for all power supplies with the nameplate and check for its safety.
• The unit should be grounded and there should be specialized grounding line for the power socket to
avoid of electrocution. Do not connect the groundling line to the gas tank, water line, lightning rod, or
telephone line.
• Only specialized accessories and parts are allowed for installation, otherwise it would lead to water
leakage, electrocution or re hazards etc.
• Size of the power lines should be large enough. Only specialized power lines are allowed for replacing
the damaged ones.
• When power lines have been connected, install the electric box as well to avoid of any safety problems.
• After all installation has been nished, take an overall check to the unit before powering it on.

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A Series Inverter Modular Air-cooled Chiller (Heat Pump)
◆Safety precautions for usage and maintenance
WARNING
• When there is something unusual (like burnt smell), cut o󰀨 the power supply at once and contact the
sales agent. The ongoing unusual condition would lead to malfunctions, electrocution or re hazards.
• When refrigerant leaks, take corrective measures to prevent oxygen depletion by increasing refrigerant
concentration.
• Do not use or place inammable or explosive substances near the unit.
• Do not do troubleshooting personally, as incorrect troubleshooting would lead to electrocution or re
hazards. Instead, please contact GREE after-sales service center.
• When the unit is charged with refrigerant, do not solder or cut any pipeline, ned heat exchanger, shell-
and-tube heat exchanger or other containers.
NOTE
• Do not let the unit out of the designed application range; otherwise it would cause the heat exchanging
tube cracking, refrigerant leakage or even explosion.
• Do not let the cold/heat source directly act on the stored foods, plants, animals, precision instruments,
and curiosities, otherwise their quality would be degraded.
• Only circulating water with satisfactory water qualify are allowed for the unit, as unsatisfactory water
quality would shorten the service life of the unit or even malfunctions.
• When the unit has been put into use for some time, check for security of the installation foundation.
Unstable foundation would lead to deformation or even safety accident.
• Once the unit is started up, stop it at least 6 minutes later, otherwise it would shorten the service life of
the unit. Never deliberately start or stop the unit frequently.
• Under subzero climatic conditions, pay attention to freeze protection. When the unit is out of use in
short time, do not cut o󰀨 the power supply, as freeze protection will not act normally. When the unit is out
of used in quite long time, add anti-freezing agent to water or drain the water system, otherwise it would
make the shell and tube crack and then leak.
DANGER
• Do not use the fuse out of the normal range or replace it with the electric wire, otherwise it would
damage the unit or lead to re hazards.
• Do not start or stop the unit directly by the power switch, as it would be likely to cause electrocution or
re hazards.
• Do not change settings of safety devices; otherwise it would lead to re hazards and explosion.
• Do not operate the unit with wet hands.
• Do not clean the unit without cutting o󰀨 the power supply, as it would lead to electrocution or personal
injury.
• Do not let children pull power lines or climb the unit to prevent of electrocution or other dangers.
• Do not touch high-temperature parts of the compressor and refrigerant lines, as it would lead to burns.
• Do not touch sharp edges and ns of the heat exchanger; otherwise it would lead to personal injury.。
• Do not touch any moving part; otherwise it would lead to accidental injury.
• Do not stand on the unit or replace objects on it.
• Do not bend pipeline and retrot the unit, otherwise it would lead to refrigerant leakage, explosion, re
hazards or personal injury.

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A Series Inverter Modular Air-cooled Chiller (Heat Pump)
！
CAUTION
• Do operate the unit in accordance with this manual and read it carefully before startup or troubleshooting.
• Do turn on or o󰀨 the unit with the controller.
◆Safety precaution for handling of the unit
WARNING
• Please contact the contractor for handling and installation. Improper installation would lead to
electrocution or re hazard.
• During installation or handling, do not let foreign matters mixed with refrigerant and do not air trapped
inside the pipe, as it would lead to increased system pressure or explosion of the compressor.
• Only specialized power lines are allowed. Wiring terminals should su󰀨er no any external force and are
xed properly; otherwise it would lead to re hazards. Besides, make sure insulation of power lines
always in good condition.
• Connection between two ends of the power lines is not allowed. When its length is not enough, please
contact the after-sales service center for customizing another one long enough.
！
CAUTION
• Treatment of water, cleaning solution, refrigerant or other waste liquid or gas should comply with local
laws and regulations; otherwise it would lead to adverse e󰀨ect to health and environment.
• Do not misuse refrigerant, as it is one of the causes of re hazard and explosion.
NOTE
When charging is interrupted or nished, reinspect the unit but do not let the compressor run into
operation.
WARNING
Do not use mixture of refrigerant vapor and air or oxygen for pressurizing for fear of explosion.
Correct disposure
This marking indicates that this product should not be disposed with
other household wastes throughout the EU. To prevent possible harm to the
environment or human health from uncontrolled waste disposal, recycle it
responsibly to promote the sustainable reuse of material resources. To return
your used device, please use the return and collection systems or contact
the retailer where the product was purchased. They can take this product for
environmental safe recycling.

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A Series Inverter Modular Air-cooled Chiller (Heat Pump)
1General introduction
See the nameplate for the main technical data.
The all-inverter modular air-cooled chillers are capable of performing cooling all year around with high
energy e󰀩cient. It requires no cooling towers and is quite applicable to water decient areas, and can
be widely used at newly built or retrotted industrial and civil buildings in various sizes, such as, hotels,
apartments, restaurants, o󰀩ce buildings, shopping malls, theaters, gyms, workshops, hospitals, places
where there is requirement on cooling under ultra-low temperature, like cold storages, places where
require cooling for dairy products, food and industrial products, and especially places where there are high
requirements on noise level and surrounding environment and boils and cooling towers are not allowed or
hard to be installed.
The unit is a hermetically sealed equipment. The annual refrigerant leakage of the whole unit is less
than 1g. Its refrigerant charge is required on the nameplate.
1.1 Product features
The all-inverter modular air-cooled chillers work outstandingly by virtue of their major features stated
below.
■ Excellent compatibility
The all-inverter modular air-cooled chillers can be constructed of multiple single units with the same
or di󰀨erent structure or capability (32kW, 60kW and 130kW). For the LSQWRF35VM/NhA-M unit, it has
only one cooling system; for the LSQWRF60VM/NhA-M unit, it has two independent systems; for the
LSQWRF130VM/NhA-M unit, there are four uniform independent systems. Up to 16 single units can be
modularized, with cooling capacity ranging from 35kW to 1040kW.
■ Comfort and energy saving
The variable-frequency technology can quickly respond to load change and lead to decreased water
temperature uctuation and better comfort.
■ Ultra-quiet
The high-efficiency and low-noise fan blades and motor as well as the optimized air passage can
greatly lower operation noise of the unit. Besides, the quite mode can provide the user an ultra-quite
environment.
■ Powerful self-protection
It is equipped with the top-end microcomputer control system which is capable of providing well-
rounded protection and self-diagnosis.
■ High reliability
It is constructed of well-designed refrigeration parts and well-designed system, structure and electric
control, adequately guaranteeing reliable operation.
■ Remote ON/OFF
The unit can be started or stopped by the ON/OFF key operation.
■ Equilibrium running
It indicates each compressor will run alternately so as to extend their service life.
■ Shiftwork of water pumps
Two water pumps can work alternately to balance their runtimes, which extends their service life. If one
pump runs for this time, it will be the other pump next time.

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A Series Inverter Modular Air-cooled Chiller (Heat Pump)
When one water pump get faulty, the other will be turned on to ensure stable operation of the unit, thus
improving the unit adaptability.
1.2 Principle diagrams
(1) LSQWRF35VM/NhA-M
High-pressure switch
COOL
HEAT
Discharge temp.sensor
Compressor
4-way valve
Finned heat exchanger
Electric expansion valve
Vapor-liquid separator
High pressure sensor
Defrosting
temp.
Suction
temp.
Leaving water
temp.s ensor
Capillary tube
Solenoid valve
Stop valve
Stop valve
Water flow
switch
Shell-an d-t ube heat exchanger
Low-pressure switch for heating Low-pressure switch for cooling
sensor
sensor
Safety valve
Ambient
temp. sensor
Freeze protection
temp. sensor
Entering water
temp. sensor
Shell-and-tube
outlet temp. sensor
Shell-and-tube
inlet temp. sensor

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A Series Inverter Modular Air-cooled Chiller (Heat Pump)
(2) LSQWRF60VM/NhA-M
Stop valve
Stop valve
Stop valve
Safety valve
Fan
Vapor liquid separator Vapor liquid separator
Low-pressure switch
for cooling
Low-pressure switch
for heating
Compressor
Discharge temp. sensor
High-pressure sensor
Low-pressure switch
for cooling
Low-pressure switch
for heating
Compressor
Discharge temp. sensor
High-pressure sensor
High-pressure switch
4-way valve
High-pressure switch
4-way valve
Finned heat exchanger
Fan
Finned heat exchanger
Capillary tube Capillary tubeSolenoid valve Solenoid valve
Defrosting
temp. sensor
COOL HEAT
Shell-and-tube inlet
temp. sensor
Shell-and-tube inlet
temp. sensor
Defrosting temp. sensor
Ambient temp. sensor
Entering water temp. sensor Leaving water temp. sensor
Freeze protection
temp. sensor
Shell-and-tube heat exchanger
Shell-and-tube inlet
temp. sensor
Shell-and-tube inlet temp. sensor
Suction temp. sensor
Suction
temp. sensor
Safety valve
Water flow switch

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A Series Inverter Modular Air-cooled Chiller (Heat Pump)
(3) LSQWRF130VM/NhA-M
High-pressure switch
COOL
HEAT
Compressor
4-way valve
Finned heat exchanger
Electric expansion valve
for heating
Electric expansion valve
for cooling
Vapor-liquid separator
Discharge temp.sensor
High pressure sensor
Leaving water
temp.s ensor
Solenoid valve
Stop valve
Stop valve
Stop valve
Stop valve
Fan
Low-pressure switch for heating Low-pressure switch for cooling
Defrosting
temp. sensor
Suction
temp. sensor
IPM module
Check valve
Check valve
Filter
Filter
Filter
Filter
Ambient
temp. sensor
Refrigerant
nozzle
Freeze protection
temp. sensor
Entering water
temp. sensor
Shell-and-tube
outlet temp. sensor
Shell-and-tube
inlet temp. sensor

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A Series Inverter Modular Air-cooled Chiller (Heat Pump)
2 Operation range
Please run the unit under the specied operation range as shown in the table below:
■ R32 Series
Item
Water side Air side
Leaving water
temperature (°C)
Water temperature
di󰀨erence (°C)
Ambient DB
temperature (°C)
Cooling 5~20 2.5~6 -15~52
Heating 35~50 2.5~6 -20~40
Maximum and minimum entering water pressures:
Item Minimum entering water pressure Maximum entering water pressure
Cooling 0.06 MPa 1.6 MPa
Heating
3 Outline dimensions
(1) LSQWRF35VM/NhA-M (unit: mm)
Installation hole
1200
729
15
22
765
845
166
146
126 121246
1340
1605
Water oulet:
G1-1/2 male thread
Water inlet:
G1-1/2 male thread
Drain valve

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A Series Inverter Modular Air-cooled Chiller (Heat Pump)
(2) LSQWRF60VM/NhA-M (unit: mm)
1
1
Installation hole
Water oulet:
G2 male thread
Water inlet:
G2 male thread
Drain valve
2200
2060
844
258 143
1675
851
880
965
22
15
(3) LSQWRF130VM/NhA-M
(unit: mm)
Water in
369
2120
376 1650
2305
2040 (Anchor bolt 6-M12) (Anchor bolt 6-M12)
1980
1930

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A Series Inverter Modular Air-cooled Chiller (Heat Pump)
4 Installation instructions
4.1 Pre-check
Installation should be performed by the skilled technician to guarantee the normal operation and
prevent malfunctions and please read this manual carefully prior to installation.
The chiller is manufactured, inspected and tested strictly in accordance with the quality control program
and it will work properly within the expected service life as long as its installation, operation and service.
4.2 Acceptance check
The user is responsible for organizing personnel to perform the acceptance check at the regulated
plate of delivery. Checks listed below should be taken as a minimum.
(1) Check if all required documents and accessories are provided as per the packing list.
(2) Check the equipment model.
(3) Check if the equipment is damaged and all parts are provided.
(4) Check if refrigerant leaks.
(5) Do not remove the protective cover on the flagon of the shell-and-tube heat exchanger before
connecting the water tube and check if the water pipe is clean.
(6) Check if the installation and operation are within the allowable conditions.
When there is damaged or any other question, contact the local sales representative for applicable
solutions.
NOTE
After the acceptance check, take necessary protection to the unpacked equipment. Note that it is not
recommended to unpack the equipment too early to avoid any unexpected damage.
4.3 Handling and lifting
Each unit will undergo a series of strict factory inspections and tests to guarantee the expected
performance and quality. However, special attention should be paid during handling and shipping to
prevent the control system and the piping system from being damaged.
The unit should be moved by the forklift or hoisting machine. During lifting, the canvas lifting or steel
ropes in use should be of enough strength and go through the based and then bundled tightly. The unit
should be lifted stably from four corners. Meanwhile, be sure there should be protective pads to prevent
lifting ropes contacting with the unit. The inclination angle during lifting should be less than 15 degree.
The unit should be moved softly and severe collision and forced drag are not allowed.

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A Series Inverter Modular Air-cooled Chiller (Heat Pump)
Please do lifting as shown in the gure below for units with similar structure.
(1) LSQWRF35VM/NhA-M, LSQWRF60VM/NhA-M
During transport by the forklift ,the symmetric holes should
be used at the A-A or B-B base of the unit itself, or at the
wooden base.
A-A
B-B
Dursing hoisting, the length of
the spreader should be longer
than that of the unit.
(2) LSQWRF130VM/NhA-M
The length of the spreader
should be larger than that
of the unit.
Soft protector
4.4 Installation foundation and service space
(1) Installation foundation shall be designed by the qualified designer in accordance with the actual
condition.
(2) A rubber pad shall be placed under the base of each single unit and then secured on the ground or
the roof. Alternatively, each single unit can be placed side by side on the parallel channel steel with
enough strength which then shall be secured with anchor bolts. Distance between each single unit
shall be keep 0.5m as a minimal.

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A Series Inverter Modular Air-cooled Chiller (Heat Pump)
(3) Enough space shall be left for service and ventilation. There should be good ventilation around the
unit. Beside, be sure there is at least 1mbetween the unit and any barrier, and at least 1.2m should
be kept at the side of the water inlet and outlet pipes. If possible, it is better to set up a sun cover
3m ahead of the unit.
(4) The unit shall be installed where it will not be a󰀨ected by re, corrosive, inammable or waste gas,
and proper measures shall be taken to minimize the vibration and noise.
(5) The unit shall be installed where the defrosting water can be drained out favorably
(6) Do not install the unit where there is heavy snow. If inevitable, build a foundation at least 300mm
higher than the ground.
■ Installation space for the single unit
(Unit: mm)
Outlet Outlet
Electric box
The inlet and outlet pipes
both are at this side.
Note: The unit should be installed where at least 3 sides of the unit are not blocked.
■ Installation space for modularised units
(Unit: mm)
Outlet Outlet Outlet Outlet

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A Series Inverter Modular Air-cooled Chiller (Heat Pump)
Electric box
The inlet and outlet pipes
both are at this side.
Electric box
The inlet and outlet pipes
both are at this side.
Inlet InletInlet
Inlet
Inlet
Inlet
Inlet
Inlet
Inlet
Inlet InletInlet
>1000
>500
>1200 >1000
Inlet
Electric box
Electric box
The inlet and outlet pipes
both are at this side.
Inlet
Inlet
Inlet
The inlet and outlet pipes
both are at this side.
Back side
Back side
Front side
Back side
Front side
Front side
Back side
Inlet
Inlet
Inlet
Inlet Inlet
InletInlet Inlet

16
A Series Inverter Modular Air-cooled Chiller (Heat Pump)
>1000
>500
>1200 >1000
Note: diagrams above are just for reference and not in real proportion.
4.5 Vibration reduction
The unit shall be securely attached to the foundation through the mounting hole by following the steps
below.
(1) Be sure the planeness of the concrete foundation is within ±3mm and the foundation shall be
covered by a rubber pad.
(2) Lift the unit until to the height where it is available to install the spring shock absorber.
(3) Remove screws xing the spring shock absorber.
(4) Place the unit on the spring shock absorber and align the bolt holes of the spring shock absorber
with the mounting holes on the base of the unit.
(5) Tighten screws removed in step 2.
(6) Adjust the height of the spring shock absorber and make sure the deection is equal all round the
spring shock absorber.
(7) Tighten the locking screws.
4.6 Removal of glands on rubber pads before compressor startup
Glands on the rubber pads are used to reduce the vibration of the compressor during the delivery of
the unit. Before the compressor starts, remove the three glands to help it operate normally. Then tighten
the pad bolts to prevent the compressor from moving up.
Remove three glands
on the rubber pad and
tighten the pad bolts
before the compressor
stats up.