Gree MULTI24HP230V1CO User manual

GREE ELECTRIC APPLIANCES,INC.OF ZHUHAI
Change for Life
Service Manual
Models: MULTI18HP230V1CO
MULTI24HP230V1CO
PTAC DIRECT SALES, INC.
185 S. KIMBALL AVE., SUITE 130
SOUTHLAKE, TX 76092
877.454.7822

Service Manual
Table of Contents
Table of Contents
Part Ė: Technical Information...............................................................................1
1. Summary..............................................................................................................................1
6SHFL¿FDWLRQV..................................................................................................................2
3. Outline Dimension Diagram................................................................................6
4. Refrigerant System Diagram..............................................................................7
5. Electrical Part...................................................................................................................8
5.1 Wiring Diagram.........................................................................................................................8
5.2 PCB Printed Diagram .............................................................................................................10
6. Function and Control..............................................................................................12
Part ė: Installation and Maintenance .........................................................15
7. Notes for Installation and Maintenance..................................................15
8. Installation Manual....................................................................................................17
8.1 Electrical Connections............................................................................................................18
8.2 Installing the Outdoor Unit......................................................................................................19
8.3 Installation Dimension Diagram..............................................................................................20
8.4 Check after Installation...........................................................................................................21
9. Troubleshooting ..........................................................................................................22
9.1 Flashing LED of Indoor/Outdoor Unit and Primary Judgement .............................................22
9.2 Malfunction Checking and Elimination ...................................................................................23
9.3 Maintenance Method for Normal Malfunction.........................................................................36
10. Exploded View and Parts List ......................................................................38
11. Removal Procedure...............................................................................................42
Appendix:................................................................................................................................55
Appendix 1: Reference Sheet of Celsius and Fahrenheit ............................................................55
$SSHQGL[&RQ¿JXUDWLRQRI&RQQHFWLRQ3LSH.............................................................................55
Appendix 3: Pipe Expanding Method ...........................................................................................56
Appendix 4: List of Resistance for Ambient Temperature Sensor ................................................57

1
Technical Information
Service Manual
1. Summary
Part Ė: Technical Information
Outdoor Unit
MULTI18HP230V1CO
MULTI24HP230V1CO

2Technical Information
Service Manual
6SHFL¿FDWLRQV
Model MULTI18HP230V1CO
Product Code CB228W04100
Power
supply
Rated Voltage V~ 208/230
Rated Frequency Hz 60
Phases 1
Cooling capacity(max~min) W 5280(2051~6155)
Heating capacity(max~min) W 5570(2500~6624)
Cooling Power Input(max~min) W 1650
Heating Power Input(max~min) W 1640
Cooling Current Input A 10.67/10.56
Heating Current Input A 6.78/6.10
Rated Power Input W 2800
Rated Current A 12.48
EER W/W 3.2
COP W/W 3.4
Outdoor
Unit
Compressor Trademark ZHUHAI LANDA COMPRESSOR CO.,LTD
Compressor Model QXA-B141zF030A
Compressor Refrigerant Oil Type RB68EP
Compressor Type Inverter Rotary
L.R.A A /
Compressor Rated Load Amp (RLA) A 7.2
Compressor Power Input W 1440
Compressor Thermal Protector 1NT11L-6233
Throttling Method Electron expansion valve
Cooling Operation Ambient Temperature Range OF -0.4~118.4
Heating Operation Ambient Temperature Range OF -4~75.2
Condenser Material Aluminum Fin-copper Tube
Condenser Pipe Diameter inch ĭ
Rows-Fin Gap(mm) inch 2-1/18
Coil length (l) X height (H) X coil width (L) inch 33 1/2X1 /12X26
Fan Motor Speed (rpm) (H/M/L) rpm 630
Output of Fan Motor W 60
Fan Motor RLA A /
Fan Motor Capacitor ȝ) /
Air Flow Volume of Outdoor Unit CFM 1883
Fan Type-Piece $[LDOÀRZ
Fan Diameter inch ĭ
Defrosting Method Automatic Defrosting
Climate Type T1
Isolation I
Moisture Protection IP24
Permissible Excessive Operating Pressure for the
Discharge Side MPa 4.3
Permissible Excessive Operating Pressure for the
Suction Side MPa 2.5
Dimension (W/H/D) inch 38X27 5/9X15 3/5
Dimension of Package (L/W/H) inch 40 2/5X18X29
Dimension of Package(L/W/H) inch 40 1/2X18X29 1/2
Net Weight lb 114.7
Gross Weight lb 124.6
efrigerant Charge R410A
Refrigerant Charge oz 77.6

3
Technical Information
Service Manual
Outdoor
Unit
Cross-sectional Area of Power Cable Conductor sq in 0.0032
Recommended Power Cable(Core) N 3
Connection Pipe Connection Method - Flare Connection
Not Additional Gas Connection Pipe Length ft 16.4
Connection Pipe Gas Additional Charge oz/ft. 0.2
Outer Diameter of Liquid Pipe1(GREE Allocation)
(Metric) inch 1/4
Outer Diameter of Liquid Pipe2(GREE Allocation)
(Metric) inch 1/4
Outer Diameter of Gas Pipe1(GREE Allocation)
(Metric) inch 3/8
Outer Diameter of Gas Pipe2(GREE Allocation)
(Metric) inch 3/8
Connection Pipe Max. Height Distance(indoor and
indoor) ft 32.8
Connection Pipe Max. Height Distance(indoor and
outdoor and indoor up) ft 32.8
Connection Pipe Max. Height Distance(indoor and
outdoor and outdoor up) ft 32.8
Max. equivalent connection pipe length(outdoor to
last indoor) ft 32.8
Connection Pipe Max. Length Distance(total lenght) ft 65.6
The above data is subject to change without notice; please refer to the nameplate of the unit.

4Technical Information
Service Manual
Model MULTI24HP230V1CO
Product Code CB228W04200
Power
supply
Rated Voltage V~ 208/230
Rated Frequency Hz 60
Phases 1
Cooling capacity(max~min) W 7620(2198~9672)
Heating capacity(max~min) W 8500(2198~7500)
Cooling Power Input(max~min) W 2400
Heating Power Input(max~min) W 2350
Cooling Current Input A 10.65
Heating Current Input A 10.43
Rated Power Input W 4550
Rated Current A 20.19
EER W/W 3.0
COP W/W 3.5
Outdoor
Unit
Compressor Trademark ZHUHAI LANDA COMPRESSOR CO.,LTD
Compressor Model QXAS-D23zX090B
Compressor Refrigerant Oil Type RB68EP
Compressor Type Inverter Rotary
L.R.A A /
Compressor Rated Load Amp (RLA) A 11.5
Compressor Power Input W 2550
Compressor Thermal Protector 1NT11L-6233
Throttling Method Electron expansion valve
Cooling Operation Ambient Temperature Range OF -0.4~118.4
Heating Operation Ambient Temperature Range OF -4~75.2
Condenser Material Aluminum Fin-copper Tube
Condenser Pipe Diameter inch ĭ
Rows-Fin Gap(mm) inch 2-1/18
Coil length (l) X height (H) X coil width (L) inch 38 2/3X1 1/2X29 4/9
Fan Motor Speed (rpm) (H/M/L) rpm 800
Output of Fan Motor W 90
Fan Motor RLA A /
Fan Motor Capacitor ȝ) /
Air Flow Volume of Outdoor Unit CFM 2354
Fan Type-Piece $[LDOÀRZ
Fan Diameter inch ĭ
Defrosting Method Automatic Defrosting
Climate Type T1
Isolation I
Moisture Protection IP24
Permissible Excessive Operating Pressure for the
Discharge Side MPa 4.3
Permissible Excessive Operating Pressure for the
Suction Side MPa 2.5
Dimension (W/H/D) inch 38 4/7X31 1/9X17 1/3
Dimension of Package (L/W/H) inch 42 1/2X19X33
Dimension of Package(L/W/H) inch 42 2/3X19 1/5X33 2/3
Net Weight lb 153.2
Gross Weight lb 164.3
efrigerant Charge R410A
Refrigerant Charge oz 77.6

5
Technical Information
Service Manual
Outdoor
Unit
Cross-sectional Area of Power Cable Conductor sq in 0.0051
Recommended Power Cable(Core) N 3
Connection Pipe Connection Method - Flare Connection
Not Additional Gas Connection Pipe Length ft 16.4
Connection Pipe Gas Additional Charge oz/ft. 0.2
Outer Diameter of Liquid Pipe1(GREE Allocation)
(Metric) inch 1/4
Outer Diameter of Liquid Pipe2(GREE Allocation)
(Metric) inch 1/4
Outer Diameter of Liquid Pipe2(GREE Allocation)
(Metric) inch 1/4
Outer Diameter of Gas Pipe1(GREE Allocation)
(Metric) inch 3/8
Outer Diameter of Gas Pipe2(GREE Allocation)
(Metric) inch 3/8
Outer Diameter of Gas Pipe2(GREE Allocation)
(Metric) inch 3/8
Connection Pipe Max. Height Distance(indoor and
indoor) ft 32.8
Connection Pipe Max. Height Distance(indoor and
outdoor and indoor up) ft 32.8
Connection Pipe Max. Height Distance(indoor and
outdoor and outdoor up) ft 32.8
Max. equivalent connection pipe length(outdoor to
last indoor) ft 65.6
Connection Pipe Max. Length Distance(total lenght) ft 196.8
The above data is subject to change without notice; please refer to the nameplate of the unit.

6Technical Information
Service Manual
3. Outline Dimension Diagram
35 1/8
38
27 5/9
15 3/5
13 3/7
22
14 1/2
Unit:inch
Unit:inch
MULTI18HP230V1CO
MULTI24HP230V1CO
38 4/7
35 1/8 13 3/7
17 1/3
31 1/9
22
14 1/2

7
Technical Information
Service Manual
4. Refrigerant System Diagram
outdoor
indoor
D1
C1
B1
A1
filter
A heat exchanger
gas -liquid separator
inverter compressor
discharge silencer
discharge temperature
sensor
SP
4-way valve
outdoor heat exchanger
fan
high pressure switch
B heat exchanger
C heat exchanger
D heat exchanger
filter
filter
filter
filter
Note: Not available for 14K/18K
model
C2
C3
D3
D2
B3
B2
A2
A3
A1:A－unit electronic expansion valve B1:B-unit electronic expansion valve
C1:C-unit electronic expansion valve D1:D-unit electronic expansion valve
A2:A-unit gas pipe temperature sensor B2:B-unit gas pipe temperature sensor
C2:C-unit gas pipe temperature sensor D2:D-unit gas pipe temperature sensor
A3:A－unit liquid pipe temperature sensor B3:B-unit liquid pipe temperature sensor
C3:C-unit liquid pipe temperature sensor D3:D-unit liquid pipe temperature sensor
Note: Not available for 14K/18K model

8Technical Information
Service Manual
5. Electrical Part
5.1 Wiring Diagram
Symbol Symbol Color Symbol Symbol Color Symbol Name
WH White GN GREEN COMP Compressor
YE Yellow BN Brown Grouding wire
RD Red BU Blue
YEGN Yellow/Green BK Black
VT Violet OG Orange
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Technical Information
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10 Technical Information
Service Manual
1
1
23 4 5 6 7 8 9 10
11
12
13
14
15
16
ƔBOTTOM VIEW
5.2 PCB Printed Diagram
MULTI18HP230V1CO
ƔTOP VIEW 1 Terminal of compressor
2Terminal of low-temperature
cooling temperature sensor
3Overload protection terminal of
compressor
4Temperature sensor terminal of
outdoor unit
5High pressure protection
terminal
6Low pressure protection
terminal
7 Terminal of outdoor unit
8Electric heating belt terminal of
chassis
9 Terminal of 4-way valve
10 Electric heating belt terminal of
compressor
11
Terminal of temperature sensor
wire for liquid valve and gas
valve
12 Terminal of electronic
expansion valve
13 Terminal of communication wire
for indoor unit and outdoor unit
14 Neutral wire terminal for
communication
15 Live wire terminal
16 Neutral wire terminal

11
Technical Information
Service Manual
123456 879
10
11
12
13
14
15
16
17
18
19
20
21
22
23
ƔBOTTOM VIEW
MULTI24HP230V1CO
ƔTOP VIEW
1Terminal of compressor
2Low pressure protection
terminal
3High pressure protection
terminal
4Overload protection terminal of
compressor
5Temperature sensor terminal of
outdoor unit
6Electric heating terminal of
chassis
7Electric heating terminal of
compressor
8Terminal of outdoor unit
9Terminal of 4-way valve
10 Temperature sensor for liquid
valve and gas valve for unit A
11 Temperature sensor for liquid
valve and gas valve for unit B
12 Temperature sensor for liquid
valve and gas valve for unit C
13 Temperature sensor for liquid
valve and gas valve for unit D
14 Electronic expansion vale for
unit A
15 Electronic expansion vale for
unit C
16 Electronic expansion vale for
unit B
17 Electronic expansion vale for
unit D
18 Communication wire with indoor
unit
19 Neutral wire for counication
20 Live wire
21 Neutral wire
22 Reactor wire 1
23 Reactor wire 2

12 Technical Information
Service Manual
6. Function and Control
1 Basic functions of the system
1.1 Cooling Mode
1.1.1 Cooling conditions and process:
If the compressor is in stop status and start the unit for cooling operation, when one of the indoor units reaches the cooling
operation condition, the unit start cooling operation; in this case, the electronic expansion valve, the outdoor fan and the
compressor start operation.
1.1.2 Stop in cooling operation
1.1.2.1 Compressor stops
The compressor stops immediately, the outdoor fan stops after 1min.
1.1.2.2 Some of the indoor units reach the stop condition (the compressor does not stop)
The compressor operates immediately according to the required frequency. For the indoor unit with no requirement, the
corresponding electronic expansion valve is closed to OP.
1.1.3 Cooling mode transfers to heating mode
When the unit transfers to heating mode, the 4-way valve is energized after the compressor stops for 2min. The other disposals
are the same as stopping in cooling mode.
1.1.4 4-way valve: in this mode, the 4-way valve is closed.
1.1.5 Outdoor fan control in cooling mode
The outdoor fan starts before 5s of the starting of compressor. The outdoor fan will run in high speed for 3min after starting and
then it will run in set speed. The fan shall run at every speed for at least 80s. (When the quantity of running indoor unit is
changed, the unit will enter the control described in 1.3.5.1 and 1.3.5.2);
When the compressor stops, the outdoor fan runs at present speed and stops after 1min.
1.2 Dry Mode
1.2.1 The dry conditions and process are the same as those in cooling mode;
1.2.2 The status of 4-way valve: closed;
1.2.3 The temperature setting range: 16 ~ 30ć;
1.2.4 Protection function: the same as those in cooling mode;
1.2.5 In dry mode, the maximum value A of the capacity requirement percentage of single unit is 90% of that in cooling mode.
The open condition of the electronic expansion valve, outdoor fan and compressor is the same as those in cooling mode.
1.3 Heating Mode
1.3.1 Cooling conditions and process:
When one of the indoor units reaches the heating operation condition, the unit starts heating operation.
1.3.2 Stop in heating operation:
1.3.2.1 When all the indoor units reach the stop condition, the compressor stops and the outdoor fan stops after 1min;
1.3.2.2 Some of the indoor units reach the stop condition
The compressor reduces the frequency immediately and operates according to the required frequency;
1.3.2.3 Heating mode transfers to cooling mode(dry mode), fan mode
a. The compressor stops; b. the power of 4-way valve is cut off after 2min; c. the outdoor fan stops after 1min; d. the status of
4-way valve: energized;

13
Technical Information
Service Manual
1.3.3 Outdoor fan control in heating mode
The outdoor fan starts before 5s of the starting of compressor and then it will run in high speed for 40s;
The fan shall run at every speed for at least 80s;
When the compressor stops, the outdoor fan stops after 1min.
1.3.4 Defrosting function
When the defrosting condition is met, the compressor stops; the electronic expansion valve of all indoor units open in big angle;
the outdoor fan stops after 40s of the stop of compressor, meanwhile, the 4-way valve reverses the direction; after the 4-way
valve reverses the direction, the compressor starts; then begin to calculate the time of defrosting, the frequency of the
compressor rises to reach the defrosting frequency.
1.3.5 Oil-returned control in heating mode
1.3.5.1 Oil-returned condition
The whole unit is operating in low frequency for a long time
1.3.5.2 Oil-returned process in heating mode
The indoor unit displays “H1”
1.3.5.3 Oil-returned finished condition in heating mode
The duration reaches 5min
1.4 Fan Mode
The compressor, the outdoor fan and the 4-way valve are closed; temperature setting range is 1630ć.
2. Protection Function
2.1 Mode Conflict Protection of indoor unit
When the setting mode is different of different indoor unit, the unit runs in below status:
a. The mode of the first operating indoor unit is the basic mode, then compare the mode of the other indoor units to see if there
is a conflict. Cooling mode (dry mode) is in conflict with heating mode.
b. Fan mode is in conflict with heating mode and the heating mode is the basic mode. No matter which indoor unit operates first,
the unit will run in heating mode.
2.2 Overload protection function
When the tube temperature is a little low, the compressor raises the operation frequency; when the tube temperature is a little
high, the compressor frequency is restricted or lows down the operation frequency; when the tube temperature is too high, the
compressor protection stops running.
If the discharge temperature protection continuously appears for 6 times, the compressor can’t resume running. The
compressor can resume running after cutting off the power and then putting through the power. (if the running time of the
compressor is longer than 7min, the protection times record will be cleared)
2.3 Discharge Protection Function
When the discharge temperature is a little low, the compressor raises the operation frequency; when the discharge temperature
is a little high, the compressor frequency is restricted or lows down the operation frequency; when the discharge temperature is
too high, the compressor protection stops running.
If the discharge temperature protection continuously appears for 6 times, the compressor can’t resume running. The
compressor can resume running after cutting off the power and then putting through the power. (if the running time of the
compressor is longer than 7min, the protection times record will be cleared)

14 Technical Information
Service Manual
2.4 Communication malfunction
Detection of the quantity of installed indoor units:
After 3min of energizing, if the outdoor unit does not receive the communication data of certain indoor unit, the outdoor unit will
judge that indoor unit is not installed and will treat it as it is not installed. If the outdoor unit receives the communication data of
that indoor unit later, the outdoor unit will treat that unit as it is installed.
2.5 Overcurrent Protection
a. Overcurrent protection of complete unit; b. phase wire current protection; c. compressor phase current protection
2.6 Compressor high-pressure protection
2.6.1 When the high-pressure switch is detected cut off for 3s continuously, the compressor will enter high-pressure protection
as it stops when reaching set temperature. Meanwhile, the outdoor unit will send the signal of “high-pressure protection” to the
indoor units;
2.6.2 After the appearance of high-pressure protection, when the high-pressure switch is detected closed for 6s continuously,
the compressor can resume running only after cutting off the power and then putting through the power.
2.7 Compressor overload protection
If the compressor overload switch is detected having movement, the indoor unit will display the corresponding malfunction as it
stops when the indoor temperature reaching set temperature. When the compressor stops for more than 3min and the
compressor overload switch is reset, the unit will resume operation status automatically. If the protection appears for more than
6 times (if the running time of the compressor is longer than 30min, the protection times record will be cleared), the unit can not
resume operation status automatically, but can resume running only after cutting off the power and then putting through the
power.
2.8 Compressor Phase-lacking Protection
When the compressor starts, if one of the three phases is detected open, the compressor will enter phase-lacking protection.
The malfunction will be cleared after 1min, the unit will restart and then detect if there is still has phase-lacking protection. If the
phase-lacking protection is detected for 6 times continuously, the compressor will not restart but can resume running only after
cutting off the power and then putting through the power. If the running time of the compressor is longer than 7min, the
protection times record will be cleared.
2.9 IPM Protection
2.9.1 When the IMP module protection is detected, the unit will stop as the indoor temperature reaching set temperature, PFC is
closed, display IMP protection malfunction. After the compressor stops for 3min, the unit will resume operation status
automatically; if the IMP protection is detected for more than 6 times continuously (If the running time of the compressor is
longer than 7min, the protection times record will be cleared), the system will stop and send the signal of module protection to
indoor unit. The unit can not resume operation status automatically, but can resume running only after cutting off the power and
then putting through the power.
2.9.2 IMP module overheating protection
2.9.2.1 When TIMPη85ć, prohibit to raise frequency;
2.9.2.2 When TIMP≥90ć, the operation frequency of compressor lows down by 15% every 90s according to the present
capacity requirement of the complete unit. It will keep 90s after lowing down the frequency. After lowing down the frequency, if
TIMP≥90ć, the unit will circulate the above movement until reaching the minimum frequency; if 85ćζTIMPζ90ć, the unit will
run at this frequency; when TIMP≤85ć, the unit will run at the frequency according to the capacity requirement;
2.9.2.3 When TIMP≥95ć, the compressor stops. After the compressor stops for 3min, if TIMPζ85ć, the compressor and the
outdoor fan will resume operation.

15
Installation and Maintenance
Service Manual
1. Select the installation location according to the require-
ment of this manual.(See the requirements in installation
part)
2. Handle unit transportation with care; the unit should not
be carried by only one person if it is more than 44.09lb.
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FLHQW¿[LQJEROWPXVWEHLQVWDOOHGPDNHVXUHWKHLQVWDOODWLRQ
VXSSRUWLV¿UP
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inch.
5. Use equipped components or appointed components dur-
ing installation.
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ishing installation.
Electrical Safety Precautions:
7. Notes for Installation and Maintenance
Safety Precautions:
Important!
Please read the safety precautions carefully before
installation and maintenance.
The following contents are very important for installation
and maintenance.
Please follow the instructions below.
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instructions.
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electrical codes.
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manual.
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GLVWULEXWRURUTXDOL¿HGSHUVRQ
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technician according to local regulations and the
instructions given in this manual.
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other accidents.
1. Cut off the power supply of air conditioner before
FKHFNLQJDQGPDLQWHQDQFH
2. The air condition must apply specialized circuit and
prohibit share the same circuit with other appliances.
3. The air conditioner should be installed in suitable
location and ensure the power plug is touchable.
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during installation and maintenance.
5. Have the unit adequately grounded. The grounding wire
can’t be used for other purposes.
6. Must apply protective accessories such as protective
boards, cable-cross loop and wire clip.
7. The live wire, neutral wire and grounding wire of power
supply must be corresponding to the live wire, neutral
wire and grounding wire of the air conditioner.
8. The power cord and power connection wires can’t be
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UHSODFHGE\DTXDOL¿HGSHUVRQ
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poisonous gas; Prohibit prolong the connection pipe by
welding.
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any other refrigerant. Never have air remain in the refrigerant
line as it may lead to rupture or other hazards.
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is completed.
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to minimize the density of refrigerant.
5. Never touch the refrigerant piping or compressor without
wearing glove to avoid scald or frostbite.
Warnings
Refrigerant Safety Precautions:
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Installation Safety Precautions:
Part ė: Installation and Maintenance
10. If the power cord or connection wire is not long enough,
please get the specialized power cord or connection wire
from the manufacture or distributor. Prohibit prolong the wire
by yourself.
11. For the air conditioner without plug, an air switch must
be installed in the circuit. The air switch should be all-pole
parting and the contact parting distance should be more than
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the valves are opened before energizing.
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SOHDVHHOLPLQDWHWKHHOHFWULFOHDNDJH
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if it is burnt down; don’t replace it with a cooper wire or
conducting wire.
15. If the unit is to be installed in a humid place, the circuit
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16 Installation and Maintenance
Service Manual
Main Tools for Installation and Maintenance
1. Level meter, measuring tape
4. Electroprobe
(OHFWURQLFOHDNDJHGHWHFWRU
10. Pipe pliers, pipe cutter
2. Screw driver
5. Universal meter
8. Vacuum pump
11. Pipe expander, pipe bender
3. Impact drill, drill head, electric drill
6. Torque wrench, open-end wrench, inner
hexagon spanner
9. Pressure meter
12. Soldering appliance, refrigerant container


17
Installation and Maintenance
Service Manual
Preparation before installation
Prepare tools
Read the requirements
for electric connection
select installation
location
Select indoor unit
installation location
Install wall-mounting
frame, drill wall holes
Connect pipes of indoor
unit and drainage pipe
Connect wires of indoor unit
Connect wires of outdoor unit
Bind up pipes and
hang the indoor unit
Make the bound pipes pass
through the wall hole and then
connect outdoor unit
Neaten the pipes
Vacuum pumping and leakage detection
Check after installation and test operation
Finish installation
Note: this flow is only for reference; please find the more detailed installation steps in this section.
Select outdoor unit
installation location
Install the support of outdoor unit
(select it according to the actual situation)
Install drainage joint of outdoor unit
(only for cooling and heating unit)
Connect pipes of outdoor unit
Start installation
Fix outdoor unit
Installation procedures
8. Installation Manual

18 Installation and Maintenance
Service Manual
8.1 Electrical Connections
1. Remove the handle at the right side plate of the outdoor
unit (one screw).
2. Remove the cable clamp, connect the power connection
cable with the terminal at the row of connection and fix the
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the indoor unit. terminal of line bank. Wiring should meet that of
indoor unit.
3. Fix power connection wire by wire clamp.
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5. Install the handle.
Wrong wire connection may cause malfunction of some
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An all-pole disconnection switch having a contact
separation of at least 3mm in all pole should be connected
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The connection pipes and the connectiong wirings of
the unit A and unit B must be corresponding to each
other respective.
The appliance shall be installed in accordance with
national wiring regulations.
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diagram of the appliance and may not correspond to the
appearance of the units that have been purchased.
Including an air switch with suitable capacity, please note
the following table. Air switch should be included magnet
buckle and heating buckle function, it can protect the
circuit-short and overload. (Caution: please do not use
thefuse only for protect the circuit)
MULTI18HP230V1CO
L1
L2
To the power supply
To unit B
Power cord
To unit A
connecting
cable
L1
L2
Power cord
L1 L2
L1 L2
L1
L2
To the power supply
To unit A
L1 L2
MULTI24HP230V1CO
connecting
cable
connecting
cable
To unit B
connecting
cable
To unit C
connecting
cable
C
C