Gree EVO Series User manual

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GREE ELECTRIC APPLIANCES, INC.OF ZHUHAI
Mini Chiller
Unit Installation
eries

CONTENTS
1.Installation Guides.................................................................................. 1
1.1 Installation Positions of the Mini Chiller..................................................................... 1
1.2 Matters Need Attention............................................................................................... 2
2 Filed Supplied Pipes and Valves ........................................................... 2
3 Service Tools........................................................................................... 3
4 Instalaltion Instructions ......................................................................... 3
4.1 Installation Examples ................................................................................................. 3
4.2 Pre-Installation ........................................................................................................... 6
4.3 Selection of Installation Location................................................................................ 6
4.4 Outline Dimension of the Mini Chiller ......................................................................... 7
4.5 Installation Clearance Data ........................................................................................ 8
4.6 Electric Wiring ........................................................................................................... 8
4.7 Wiring of the Terminal Board ..................................................................................... 9
4.8 Wiring of the 2-Way Valve ........................................................................................ 10
4.9 Wired Controller ..................................................................................................... 11
4.10 Wiring of Other Auxiliary Heat Sources.................................................................. 11
4.11 Wiring of the Gate-Controller.................................................................................. 11
4.12 Wiring of the Remote Air Temperature Sensor....................................................... 12
4.13 Wiring of the Thermostat........................................................................................ 12
4.14 Wiring of the Control ............................................................................................. 13
5 Commissioning and Trial Run ............................................................. 14
5.1 Check before startup................................................................................................ 14
5.2 Test run..................................................................................................................... 15

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Unit Installation
1.Installation Guides
WARNING!
①Installation should be performed by GREE appointed servicemen, or improper installation would lead to
unusual operation, water leakage, electric shock or re hazard.
②The unit should be installed on the foundation which is capable of supporting the unit, or the unit would fall
off or even lead to personal injury.
③All electric installation should be done by electrician in accordance with local laws and regulations, as
well as the User’s Manual and this Service Manual. Besides, the special power lines should be used, as any
improper line would lead to electric shock or re hazard.
④All electric lines should be safe and secured reliably. Be sure the terminal board and electric lines will not
be affected by any external force, or it would lead to re hazard.
⑤The electric lines should run properly to make the cover of the electric box secured tightly, or it would
cause the terminal board overheated or cause electric shock or re hazard.
⑥Cut off the power supply before touching any electric element.
CAUTION!
①The unit should be grounded properly and the ground line is not allowed to connect with the gas line,
water line, lightning rod or phone line.
②The breaker should be installed, or it would lead to electric shock.
③The drain pipe should be installed in accordance with the User’s Manual and this Service Manual to
ensure free drainage, and the drain pipe should be insulated against condensation. Once the drain pipe is
installed improperly, it would lead to water leak which then will damps the ceiling and furniture.
④Do not place the unit where there is oil fog, like kitchen, or the plastic would be aged, broken off or the
polluted evaporator would lead to water leak and poor performance.
⑤Do not place the unit where there is corrosive gas (like sulfur dioxide), or the corroded copper tubes or
welded joint would lead to refrigerant leakage.
⑥ Do not place the unit where there is inammable gas, carbon ber, inammable dust or volatile
combustible, as they would lead to re hazard.
SAFETY!
① Always use safety outts at the construction site.
②No smoking and no drunken operation are allowed at the construction site.
③Wear no gloves and tighten the cuff when operating the machinery and electrical equipment. Do not
maintain it during operation.
④Use the abrasive-disk cutter and stand at the side of the rotating abrasive disk.
⑤Clean the opening when installing the riser pipe, and then cover it tightly. Do not throw down any material.
⑥ The use of the electric and gas welders should be approved rstly. Once used, a re distinguisher should
be prepared and a service man should be there always. There should be no inammable and explosive
substances around the welding site.
⑦A platform should be set up when working high above the ground.
1.1 Installation Positions of the Mini Chiller
(1). Avoid direct sunshine.
(2). Monobloc unit must be installed on a rm and solid support.
(3). Ensure the hanger rod, ceiling and building structure have sufcient strength to support the weight of air
conditioner unit.
(4). Avoid placing the monobloc unit under window or between two constructions, hence to prevent normal
operating noise from entering the room.
(5). Air ow at inlet and outlet shall not be blocked.
(6). Install at a well-ventilated place, so that the machine can absorb and discharge sufcient air.
(7). Do not install at a place where ammable or explosive goods exist or a place subject to severe dust,

2
Unit Installation
salty fog and polluted air.
1.2 Matters Need Attention
(1) The installation of unit must be in accordance with national and local safety codes.
(2) Installation quality will directly affect the normal use of air conditioner unit. The user is prohibited from
installation by himself. Please contact your dealer after buying this machine. Professional installation workers
will provide installation and test services according to installation manual.
(3) Do not connect to power until all installation work is completed.
2 Filed Supplied Pipes and Valves
Name Picture Usage
Water Filter It is used to remove foreign matters in the
waterway.
2-way Valve It is used to switch waterways between underoor
system and the FCU.
3-way Valve
It is used to switch waterways of hot water inside
the water tank and circulation water inside the main
unit.
Bypass Valve It is used to balance the water pressure.
Water Trap It is used to distribute water.
Pipe Joint It is used to connect the water pipes.
Cut-off Valve It is used to cut off or get through the waterway.

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Unit Installation
3 Service Tools
Name Picture
Spanner
Screw Driver
Pliers
Tube Tongs
4 Instalaltion Instructions
4.1 Installation Examples
CASE 1: Connection of Terminals for Heating and Cooling (Under floor Loop, Fan Coil Unit, and
Radiator)
B
M
Under Floor Coil
FCU 1
T
Radiator
B
T
Bypass valve (field supplied)
High temperature line Low temperature line
2-Way Vavle (field supplied)
Remote room thermostat (field supplied)
Controll Cable
M
FCU 2

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Unit Installation
Notes:
① The two-way valve is very important to prevent dew condensation on the oor and radiator while cooling
mode;
② Type of thermostat and specication should be complied with installation of this manual;
③ The by-pass valve must be installed to secure enough water ow rate, and should be installed at the
collector.
CASE 2: Connection between the Electric Heater and the Main Unit
Two groups of electric heaters are available, as well as control terminals for two groups of auxiliary electric
heaters. These two groups of electric heaters can be activated at the same time. When only one group of the
electric heater is installed, please follow the wiring of any group of the diagram shown below.
(1) See the following statement for installation of two groups of auxiliary electric heaters, including wiring of
the AC contactor, the thermostat and the tank-type electric heater.
◆Wiring of the AC Contactor
L1, L2 and L3 are three-phase input terminals. T1, T2 and T3 are three-phase output terminals. A1 and A2
are terminals of input and output signals which are used to control the AC contactors. NO and NC are normally
open and closed terminals of the AC contactors.
The tank-type electric heater and AC contacts should be selected according to the selection instructions
and the thermostat and its upper limit should be decided by the protection function of the electric heater.
In order to ensure product quality and service life, it is unallowable to do wiring directly at the main board
by the user themselves to prevent the main board from being damaged. The AC contactor control signal input
terminal X17 (AC contactor 1) and X18 (AC contactor 2) of the main board AP1 should be connected to terminal
7 and terminal 8 of the electric box. The single pins of terminal CN26 (AC contactor 1) and CN27 (AC contactor 2)
should be connected to terminal 35 and 36 of the electric box. Besides, other two pins of CN 26 and CN27 both
should be connected to XT2 (see the diagram below for more details).
Only qualied cables are allowed and see the table below for the corresponding wiring terminals.
No. Wiring Terminal
AC Contactor 1
7—A1
35—2T1
AC Contactor 2
8—A1
36—2T2
◆Wiring of the Thermostat
The proper limit of the thermostat should be selected based on the protection function of the electric heater.
Firstly, short-circuit the ON/OFF control signal output terminals of AC contactor 1 and AC contactor 2, and
then connect them with the thermostat in series. Do not let the temperature of the external wall of the tank-type
electric heater too high (see the diagram below for more details). After that, apply heat-conducting paste on the
sensing probe and then insert it to the sensing hole to sense the temperature of the external wall of the tank-
type electric heater.
◆Wiring of the Tank-type Electric Tank
The tank-type electric heater with proper power output should be used and the heating pipe should be
installed at the water inlet side of the unit.
Three-phase wiring for the electric heater should be supplied by the user themselves. A new electric box is
recommended to be used. See the diagram below for more details.
When protection function of the thermostat is required, the sensing probe applied with heat-conducting
paste should be inserted into the sensing hole after wiring of the electric heater has been nished.

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Unit Installation
7
8
6
35
36
34
X17
X18
CN26
CN27
2T1 4T26 T3
1L1 3L2 5L3
13
NO
21
NC A1
14
NO
22
NC
A2
2T1 4T26 T3
1L1 3L2 5L3
13
NO
21
NC A1
14
NO
22
NC
A2
XT2
7
8
6
34
35
36
Electric Box
Wiring Board
AC Contactor 1
AC Contactor 2
Tank-type Electric Heater
Main Board AP1
Thermostat Sensing probe
Neutral Line
Field Installation Diagramof the Electric Heater
(with the thermostat)
(2) See the following statement for installation of two groups of auxiliary electric heaters, including wiring of
the AC contactors and the tank-type electric heater.
◆Wiring of the AC contactors is the same as that stated above.
◆When the thermostat is not required, do the wiring as shown in the diagram below. The output terminal
used to control the thermostat should be short-circuited and then be connected to terminal 9 ( it is the
terminal for the neutral line).

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Unit Installation
◆Wiring of the tank-type electric heater is the same as that stated above.
7
8
6
35
36
34
X17
X18
CN26
CN27
2T1 4T26 T3
1L1 3L2 5L3
13
NO
21
NC A1
14
NO
22
NC
A2
2T1 4T26 T3
1L1 3L2 5L3
13
NO
21
NC A1
14
NO
22
NC
A2
7
8
6
34
35
36
9
AC Contactor 1
A
C
C
ontactor 2
Wiring Board
Electric Box
Mainboard AP1
Field Instalaltion Diagram of the Electric Heater
(without the thermostat)
XT2
Notes:
① During installation, the electric heater should be supplied with three-phase power separately. When only
one group of the electric heater is installed, please follow the wiring of any group of the diagram shown above.
② Quantity of the AC contactors should match with that of the electric heater installed. Proper AC
contactors which meet the actual demands should be adopted.
③ The wiring mode depends on if the tank-type electric heater is equipped with a thermostat or not.
④ Proper power lines should be used and those that do not meet actual demands should be avoided.
⑤ Never open the electric box for wiring of the mainboard by the user themselves.
4.2 Pre-Installation
(1). Installation of the unit must be in accordance with national and local safety codes.
(2). Installation quality will directly affect the normal use of the air conditioner unit. The user is prohibited
from installation by himself. Please contact your dealer after buying this machine.Professional installation
workers will provide installation and test services according to the installation manual.
(3). Do not connect to power supply until all installation work is completed.
4.3 Selection of Installation Location
(1). The monobloc unit must be installed on a rm and solid support.
(2). Avoid placing the monobloc unit under window or between two constructions, hence to prevent normal
operating noise from entering the room.
(3). Air ow at inlet and outlet shall not be blocked.
(4). Install at a well-ventilated place, so that the machine can absorb and discharge sufcient air.
(5). Do not install at a place where ammable or explosive goods exist or a place subject to severe dust,
salty fog and polluted air.

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Unit Installation
4.4 Outline Dimension of the Mini Chiller
◆HLR8Pd/Na-K, HLR10Pd/Na-K
1390
412
361 388
890
◆HLR12Pd/Na-M, HLR14Pd/Na-M
367
340
1390
1430

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Unit Installation
4.5 Installation Clearance Data
＞1000
＞2000
＞500
＞500 ＞500
＞500
＞2000
(1) When moving the monobloc unit, it is necessary to adopt 2 pieces of long enough rope to hand the unit
from 4 directions. Included angle between the rope when hanging and moving must be 40°below to prevent
center of the unit from moving.
(2) The monobloc unit should be installed on concrete base that is 10cm height.
(3) Requirements on installation space dimension of unit’s bodies are shown in following drawing.
(4) The monobloc unit must be lifted by using designated lifting hole. Take care to protect the unit during lift.
To avoid rusting, do not knock the metal parts.
4.6 Electric Wiring
◆HLR8Pd/Na-K, HLR10Pd/Na-K

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Unit Installation
◆HLR12Pd/Na-M, HLR14Pd/Na-M
4.7 Wiring of the Terminal Board
◆HLR8Pd/Na-K, HLR10Pd/Na-K

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Unit Installation
◆HLR12Pd/Na-M, HLR14Pd/Na-M
4.8 Wiring of the 2-Way Valve
The 2-way valve is required to control water ow for cooling operation. The role of 2-way valve is to cut off
water ow into the underoor loop when the fan coil unit is equipped for cooling operation.
General Information
Type Power Operating Mode Supported
NO 2-wire 230V 50Hz 1Ph AC
Closing water ow Yes
Opening water ow Yes
NC 2-wire 230V 50Hz 1Ph AC
Closing water ow Yes
Opening water ow Yes
(1) Normal Open type. When electric power is NOT supplied, the valve is open. (When electric power is
supplied, the valve is closed.)
(2) Normal Closed type. When electric power is NOT supplied, the valve is closed. (When electric power is
supplied, the valve is open.)
How to Wire 2-Way Valve:
Follow steps below to wire the 2-way valve.
Step 1. Uncover the front cover of the unit and open the control box.
Step 2. Find the terminal block and connect wires as below.
4 5 6 10 11 12
2-Way Valve 2 2-Way Valve 1
XT2
L1(OFF)
L2(ON)
L1(OFF)
L2(ON)
N N

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Unit Installation
WARING!
① Normal Open type should be connected to wire (ON) and wire (N)for valve closing in cooling mode.
② Normal Closed type should be connected to wire (OFF) and wire (N)for valve closing in cooling mode.
(ON) : Line signal (for Normal Open type) from PCB to 2-way valve
(OFF) : Line signal (for Normal Closed type) from PCB to 2-way valve
(N) : Neutral signal from PCB to 2-way valve
The 2-way value 2 is reserved without any control program. At the eld installation, it should be wired at the
terminal board of the 2-way valve 1.
4.9 Wired Controller
Wired controller wiring guidance:
4.10 Wiring of Other Auxiliary Heat Sources
Other auxiliary heat sources are allowed for the equipment and controlled in such a way that the mainboard
will output 230V when outdoor temperature is lower than the set point for startup of the auxiliary heat source.
13 14
Other Thermal
XT2
N
4.11 Wiring of the Gate-Controller
If there is gate control function,installation guide follow as:
(1) HLR8Pd/Na-K, HLR10Pd/Na-K
XT3
1 2
Gate-Controller
(2) HLR12Pd/Na-M, HLR14Pd/Na-M
XT4
5 6
Gate-Controller

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Unit Installation
4.12 Wiring of the Remote Air Temperature Sensor
Front side Back side
Remote Air Temperature Sensor
Doors
NO
NONO
NO
1.5 Meters
YES
CN1 15K
Remote Air Environment
Temp sensor
Electric box
2
Notes:
① Distance between the monobloc unit and the remote air temperature senor should be less than 15
meters due to length of the connection cable of remote air temperature sensor;
② Height from oor is approximately 1.5 meters;
③ Remote air temperature sensor can not be located where the area may be hidden when door is open;
④ Remote air temperature sensor can not be located where external thermal inuence may be applied;
⑤ Remote air temperature sensor should be installed where space heating is mainly applied;
⑥ After the remote air temperature sensor is installed, it should be set to “With” through the wired
controller so as to set the remote air temperature to the control point.
4.13 Wiring of the Thermostat
Installation of the thermostat is very similar to that of the remote air temperature sensor.

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Unit Installation
21 22 23 24 25 26
Thermostat
XT3
220V AC 24V AC
2220V GND 224V GND
OFF OFF
HEAT COOL COOL HEAT
27 28 29 30
Thermostat
How to Wire Thermostat
(1) Uncover the front cover of the monobloc unit and open the control box.
(2) Identify the power specification of the thermostat, if it is 230V , find terminal block XT3 as NO.21~25;
Otherwise, if it is 24V, nd terminal block XT3 as NO.26~30;
(3) If it is the heating/cooling thermostat, please connect wire as per the gure above;
CAUTION!
① Never use 230V AC and 24V AC thermostat at the same time, otherwise, it will cause short circuit and
power cut-off by the circuit breaker;
② Setting temperature by the thermostat(heating or cooling) should be within the temperature range of the
product ;
③ For other constrains, please refer to previous pages about the remote air temperature sensor;
④ Do not connect external electric loads. Wire 220V AC(24V AC) and 220V GND(24V GND) should be
used only for the electric thermostat.
⑤ Never connect external electric loads such as valves, fan coil units, etc. If connected, the mainboard of
the unit can be seriously damaged.
⑥ Installation of the thermostat is very similar to that of the remote air temperature sensor.
4.14 Wiring of the Control
CN8CN7
CN6CN5
AP1
AP2
Wired controller
CN5 CN4
Long-distance
Minitor PC
Control Box
Notes:
①The wired controller can be connected to the terminal of AP1 CN6 or AP2 CN 8 through the four-wire
communication line.
②AP1 (CN 5) and AP2 (CN 7) have been connected with the communication line (three-wire communication
line before delivery.
③The remote monitoring device can be connected to the CN4 of the wired controller through a four-wire
communication line.

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Unit Installation
5 Commissioning and Trial Run
5.1 Check before startup
For safety of users and unit, the unit must be started up for check before debugging. The procedures are as
below:
The following items shall be performed by qualied repair persons.
Conrm together with the sales engineer, dealer, installing contractor and customers for the following items nished or to be nished.
No. Conrmation of Installation √
1 If the contents of Application for Installation of this Unit by Installer are real. If not, debugging will be refused. □
2Is there written notice in which amendment items are shown in respect of unqualied installation? □
3Are Application for Installation and Debugging list led together? □
No. Pre-check √
1Is appearance of the unit and internal pipeline system ok during conveying, carrying or installation? □
2 Check the accessories attached with the unit for quantity, package and so on. □
3 Make sure there is drawings in terms of electricity, control, design of pipeline and so on. □
4 Check if installation of the unit is stable enough and there is enough space for operation and repair. □
5 Completely test refrigerant pressure of each unit and perform leakage detection of the unit. □
6Is the water tank installed stably and are supports secure when the water tank is full? □
7Are heat insulating measures for the water tank, outlet/inlet pipes and water replenishing pipe proper? □
8Are the nilometer of water tank, water temperature indicator, controller, manometer, pressure relief valve and
automatic discharge valve etc. installed and operated properly? □
9Does power supply accord with the nameplate? Do power cords conform to applicable requirements? □
10 Is power supply and control wiring connected properly according to wiring diagram? Is earthing safe? Is each
terminal stable? □
11 Are connection pipe, water pump, manometer, thermometer, valve etc. are installed properly? □
12 Is each valve in the system open or closed according to requirements? □
13 Conrm that the customers and inspection personnel of Part A are at site. □
14 Is Installation Check-up Table completed and signed by the installation contractor? □
Attention: If there is any item marked with ×, please notify the contractor. Items listed above are just for reference.
Conrmed Items after pre-checking
General Evaluation: Debugging □ Amendment □
Judge the following items (if there is not any lling, qualication will be regarded.)
a: Power supply and electric control system b: Loading calculation
c: Heating problems of Unit d: Noise problem
e: Pipeline problem f: Others
Normal debugging work can’t be performed unless all installation items are qualied. If there is any problem, it must be
solved rstly. The installer will be responsible for all costs for delay of debugging and re-debugging incurred by any problem
which is not solved immediately.
Submit schedule of amending reports to installer.
Is the written amending report which should be signed after communication provided to installer?
Yes ( ) No ( )

15
Unit Installation
5.2 Test run
Test run is testing whether the unit can run normally via preoperation. If the unit cannot run normally,
find and solve problems until the test run is satisfactory. All inspections must meet the requirements before
performing the test run. Test run should follow the content and steps of the table below:
The following procedure should be executed by experience and qualied maintenance men.
No. Start up the pretest procedure
Notice: before test, ensure that all power must be cut off, including the far- end power switch, otherwise, it may cause casualty.
1Ensure that the compressor of the unit is preheated for 8h.
Caution: heat the lubricating oil at least 8h in advance to prevent refrigerant from mixing with the lubricating oil, which may cause
damage to the compressor when starting up the unit.
2Check whether the oil temperature of the compressor is obviously higher than the outdoor ambient temperature.
Caution: if the oil temperature of the compressor is obviously higher than the outdoor ambient temperature, it means that the heating
tape of compressor is damaged. In that case, the compressor will be damaged easily. Therefore, repair the heating tape before using
the unit.
3Check whether the phase sequence of the main power supply is correct. If not, correct the phase sequence rstly.
Recheck the phase sequence before start-up to avoid reverse rotation of the compressor which may damage the unit.
4Apply the universal electric meter to measure the insulation resistance between each phase and earth as well as between
phases.
Caution: defective earthing may cause electric shock.
No. Ready to start
1
Cut off all temporary power supply, resume all the insurance and check the electricity for the last time.
Check the power supply and voltage of the control circuit; _____V must be ±10% within the range of rated operating power.
No. Start up the unit
1Check all the conditions needed to start up the unit: oil temperature, mode, required load etc.
2
Start up the unit, and observe the operation of compressor, electric expanding valve, fan motor and water pump etc.
Note: the unit will be damaged under abnormal running state. Do not operate the unit in states of high pressure and high
current.
Others:
Items for
acceptance after
debugging
Estimation or suggestion on the general running situation: good, modify
Identify the potential problem (nothing means the installation and debugging are in accordance with the
requirements.)
a. problem of power supply and electric control system:
b. problem of load calculation:
c. refrigerant system:
d. noise problem:
e. problem of indoor and piping system:
h. other problems:
During operation, it is needed to charge for the maintenance due to non-quality problems such as incorrect
installation and maintenance.
Acceptance
Is the user trained as required? Please sign. Yes( ) No( )