aircon AMTCM4H4R30 User manual

Service Manual
Models: AMTCM4H4R30
AMTCM4H4R36
AMTCM4H4R42
(Refrigerant R410A)

Service Manual
Table of Contents
Table of Contents
Part Ⅰ: Technical Information...............................................................................1
1. Summary..............................................................................................................................1
2. Specications..................................................................................................................2
2.1 Specication Sheet........................................................................................................................2
2.2 Cooling Capacity Tables................................................................................................................8
3. Outline Dimension Diagram..............................................................................11
4. Refrigerant System Diagram............................................................................12
5. Electrical Part.................................................................................................................13
5.1 Wiring Diagram............................................................................................................................13
5.2 PCB Printed Diagram ..................................................................................................................15
6. Function and Control..............................................................................................16
Part Ⅱ: Installation and Maintenance .........................................................18
7. Safety Precautions....................................................................................................18
8. Installation Manual....................................................................................................20
8.1 Preparation before Installation.....................................................................................................21
8.2 Installation Instruction..................................................................................................................23
9. Troubleshooting ..........................................................................................................29
9.1 Malfunction Indicator ..................................................................................................................29
9.2 Malfunction Checking and Elimination.........................................................................................30
9.3 Maintenance Method for Normal Malfunction..............................................................................36
10. Exploded View and Parts List ......................................................................38
11. Removal Procedure...............................................................................................44
Appendix:................................................................................................................................56
Appendix 1: Reference Sheet of Celsius and Fahrenheit ............................................................56
Appendix 2: Pipe Expanding Method ...........................................................................................56
Appendix 3: List of Resistance for Temperature Sensor ..............................................................58

1
Technical Information
Service Manual
1. Summary
Part Ⅰ: Technical Information
Outdoor Unit
AMTCM4H4R36
AMTCM4H4R42
AMTCM4H4R30

2Technical Information
Service Manual
2. Specications
Model AMTCM4H4R30
Product Code CB228W07900
Power
supply
Rated Voltage V~ 208/230
Rated Frequency Hz 60
Phases 1
Cooling capacity Btu/h 28500
Heating capacity Btu/h 30000
Cooling Power Input W 2280
Heating Power Input W 2350
Cooling Current Input A 9.91
Heating Current Input A 10.22
Rated Power Input W 3800
Rated Current A 16.86
EER (Btu/h)/W 12.50
COP (Btu/h)/W 12.76
SEER 21.00
HSPF 10.50
Outdoor
Unit
Compressor Trademark ZHUHAI LANDA COMPRESSOR
CO.LTD
Compressor Model QXAS-D32zX090A
Compressor Refrigerant Oil Type RB68EP
Compressor Type Inverter Rotary
L.R.A A 30
Compressor Rated Load Amp (RLA) A 13.9
Compressor Power Input W 4150
Compressor Thermal Protector 1NT11L—6233
Throttling Method Electron expansion valve
Cooling Operation Ambient
Temperature Range
OF 0~118
Heating Operation Ambient
Temperature Range
OF -4~86
Condenser Material Aluminum Fin-copper Tube
Condenser Pipe Diameter inch Φ5/16
Rows-Fin Gap(mm) inch 2-1/16
Coil length (l) X height (H) X coil
width (L) inch 27 7/16X29 7/16X12 13/64
Fan Motor Speed (rpm) (H/M/L) rpm 630
Output of Fan Motor W 60
Fan Motor RLA A /
Fan Motor Capacitor μF /
Air Flow Volume of Outdoor Unit CFM 2330
Fan Type-Piece Axial-ow
Fan Diameter inch Φ21.6-4.7
Defrosting Method Automatic Defrosting
Climate Type T1
Isolation I
Moisture Protection IPX4
Permissible Excessive Operating
Pressure for the Discharge Side PSIG 550
Permissible Excessive Operating
Pressure for the Suction Side PSIG 240
Dimension (WXHXD) inch 38 27/64X31 7/64X17 21/64
Dimension of Package (LXWXH) inch 42 1/2X19X33
Dimension of Package(LXWXH) inch 42 43/64X19 13/64X33 43/64
Net Weight lb 145.5
Gross Weight lb 154.4
efrigerant Charge R410A
Refrigerant Charge oz 98.8
2.1 Specication Sheet

3
Technical Information
Service Manual
Outdoor
Unit
Cross-sectional Area of Power Cable Conductor sq in 0.0062
Recommended Power Cable(Core) N 3
Connection Pipe Connection Method -Flare Connection
Not Additional Gas Connection Pipe Length ft 131.2
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 Pipe3(GREE Allocation)
(Metric) inch 1/4
Outer Diameter of Liquid Pipe4(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 Pipe3(GREE Allocation)
(Metric) inch 3/8
Outer Diameter of Gas Pipe4(GREE Allocation)
(Metric) inch 3/8
Connection Pipe Max. Height Distance(indoor and
indoor) ft 24.6
Connection Pipe Max. Height Distance(indoor and
outdoor and indoor up) ft 49.2
Connection Pipe Max. Height Distance(indoor and
outdoor and outdoor up) ft 49.2
Max. equivalent connection pipe length(outdoor to
last indoor) ft 82.0
Connection Pipe Max. Length Distance(total lenght) ft 229.7
The above data is subject to change without notice; please refer to the nameplate of the unit.

4Technical Information
Service Manual
Model AMTCM4H4R36
Product Code
CB228W08000
Power
supply
Rated Voltage V~ 208/230
Rated Frequency Hz 60
Phases 1
Cooling capacity Btu/h 34000
Heating capacity Btu/h 42500
Cooling Power Input W 2800
Heating Power Input W 3350
Cooling Current Input A 12.5
Heating Current Input A 15
Rated Power Input W 3800
Rated Current A 30
EER (Btu/h)/W 12.14
COP (Btu/h)/W 12.69
SEER 21.00
HSPF 10.20
Outdoor
Unit
Compressor Trademark ZHUHAI LANDA COMPRESSOR
CO.LTD
Compressor Model QXAS-D32zX090A
Compressor Refrigerant Oil Type RB68EP
Compressor Type Inverter Rotary
L.R.A A 30
Compressor Rated Load Amp (RLA) A 15.6
Compressor Power Input W 4150
Compressor Thermal Protector 1NT11L—6233
Throttling Method Electron expansion valve
Cooling Operation Ambient Temperature
Range
OF 0~118
Heating Operation Ambient Temperature
Range
OF -4~86
Condenser Material Aluminum Fin-copper Tube
Condenser Pipe Diameter inch Φ5/16
Rows-Fin Gap(mm) inch 2-1/16
Coil length (l) X height (H) X coil width (L) inch 27 7/16X29 7/16X12 13/64
Fan Motor Speed (rpm) (H/M/L) rpm 850
Output of Fan Motor W 140
Fan Motor RLA A /
Fan Motor Capacitor μF /
Air Flow Volume of Outdoor Unit CFM 4531
Fan Type-Piece Axial-ow
Fan Diameter inch Φ22.4—5.98
Defrosting Method Automatic Defrosting
Climate Type T1
Isolation I
Moisture Protection IPX4
Permissible Excessive Operating Pressure for
the Discharge Side PSIG 550
Permissible Excessive Operating Pressure for
the Suction Side PSIG 240
Dimension (W/H/D) inch 42 1/2X43 27/64X17 21/64
Dimension of Package (L/W/H) inch 46X18 57/64X43 57/64
Dimension of Package(L/W/H) inch 46 1/6X19X44 1/2
Net Weight lb 198.5
Gross Weight lb 216.1
efrigerant Charge R410A
Refrigerant Charge oz 128.8

5
Technical Information
Service Manual
Outdoor
Unit
Cross-sectional Area of Power Cable Conductor sq in 0.0062
Recommended Power Cable(Core) N 3
Connection Pipe Connection Method - Flare Connection
Not Additional Gas Connection Pipe Length ft 131.2
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 Pipe3(GREE Allocation)
(Metric) inch 1/4
Outer Diameter of Liquid Pipe4(GREE Allocation)
(Metric) inch 1/4
Outer Diameter of Liquid Pipe4(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 Pipe3(GREE Allocation)
(Metric) inch 3/8
Outer Diameter of Gas Pipe4(GREE Allocation)
(Metric) inch 3/8
Outer Diameter of Gas Pipe4(GREE Allocation)
(Metric) inch 3/8
Connection Pipe Max. Height Distance(indoor and
indoor) ft 24.6
Connection Pipe Max. Height Distance(indoor and
outdoor and indoor up) ft 49.2
Connection Pipe Max. Height Distance(indoor and
outdoor and outdoor up) ft 49.2
Max. equivalent connection pipe length(outdoor to
last indoor) ft 82.0
Connection Pipe Max. Length Distance(total lenght) ft 246.1
The above data is subject to change without notice; please refer to the nameplate of the unit.

6Technical Information
Service Manual
Model AMTCM4H4R42
Product Code CB228W08300
Power
supply
Rated Voltage V~ 208/230
Rated Frequency Hz 60
Phases 1
Cooling capacity Btu/h 40000
Heating capacity Btu/h 45000
Cooling Power Input W 3810
Heating Power Input W 3650
Cooling Current Input A 16.5
Heating Current Input A 16
Rated Power Input W 4000
Rated Current A /
EER (Btu/h)/W 10.50
COP (Btu/h)/W 12.33
SEER 21.00
HSPF 10.20
Outdoor
Unit
Compressor Trademark ZHUHAI LANDA COMPRESSOR CO.LTD
Compressor Model QXAS-D32zX090A
Compressor Refrigerant Oil Type FV50S
Compressor Type Inverter Rotary
L.R.A A /
Compressor Rated Load Amp (RLA) A 17.8
Compressor Power Input W 4150
Compressor Thermal Protector 1NT11L—6233
Throttling Method Electron expansion valve
Cooling Operation Ambient Temperature
Range
OF 0~118
Heating Operation Ambient Temperature
Range
OF -4~86
Condenser Material Aluminum Fin-copper Tube
Condenser Pipe Diameter inch Φ5/16
Rows-Fin Gap(mm) inch 2-1/16
Coil length (l) X height (H) X coil width (L) inch 27 7/16X29 7/16X12 13/64
Fan Motor Speed (rpm) (H/M/L) rpm 880
Output of Fan Motor W 170
Fan Motor RLA A 0.82
Fan Motor Capacitor μF /
Air Flow Volume of Outdoor Unit CFM 4531
Fan Type-Piece Axial-ow
Fan Diameter inch Φ22.4—5.98
Defrosting Method Automatic Defrosting
Climate Type T1
Isolation I
Moisture Protection IPX4
Permissible Excessive Operating Pressure for
the Discharge Side PSIG 550
Permissible Excessive Operating Pressure for
the Suction Side PSIG 240
Dimension (W/H/D) inch 42 1/2X43 27/64X17 21/64
Dimension of Package (L/W/H) inch 46X18 57/64X43 57/64
Dimension of Package(L/W/H) inch 46 1/6X19X44 1/2
Net Weight lb 198.5
Gross Weight lb 216.1
efrigerant Charge R410A
Refrigerant Charge oz 128.8

7
Technical Information
Service Manual
Outdoor
Unit
Cross-sectional Area of Power Cable Conductor sq in 0.0062
Recommended Power Cable(Core) N 3
Connection Pipe Connection Method - Flare Connection
Not Additional Gas Connection Pipe Length ft 131.2
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 Pipe3(GREE Allocation)
(Metric) inch 1/4
Outer Diameter of Liquid Pipe4(GREE Allocation)
(Metric) inch 1/4
Outer Diameter of Liquid Pipe4(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 Pipe3(GREE Allocation)
(Metric) inch 3/8
Outer Diameter of Gas Pipe4(GREE Allocation)
(Metric) inch 3/8
Outer Diameter of Gas Pipe4(GREE Allocation)
(Metric) inch 3/8
Connection Pipe Max. Height Distance(indoor and
indoor) ft 24.6
Connection Pipe Max. Height Distance(indoor and
outdoor and indoor up) ft 49.2
Connection Pipe Max. Height Distance(indoor and
outdoor and outdoor up) ft 49.2
Max. equivalent connection pipe length(outdoor to
last indoor) ft 82.0
Connection Pipe Max. Length Distance(total lenght) ft 246.1
The above data is subject to change without notice; please refer to the nameplate of the unit.

8Technical Information
Service Manual
ROOM MODEL:30K
CONNECTIVE INDOOR
UNIT:
GWH09TB-D3DNA1A/I×2
GWH12TB-D3DNA1A/I×1
OUTDOOR TEMPERATURE DRY
INDOOR
TEMPERATURE
-13.88OC(7OF)D
-15OC(5OF)W
-8.33OC(17OF)D
-9.44OC(15OF)W
-2.22OC(28OF)D
-3.89OC(25OF)W
3.33OC(38OF)D
1.67OC(35OF)W
8.33OC(47OF) D
6.11OC(43OF)W
13.89OC(57OF) D
12.7OC(55OF) W
15OC(59OF) D
10OC(50OF) W
Total capacity(W) 6560 6580 8050 10880 11300 11800
Sensitive capacity(W) 6560 6580 8050 10880 11300 11800
Total power input(W) 2820 2150 2750 2850 2950 2480
Sensitive capacity(W)/
Total capacity(W)% 100 100 100 100 100 100
18OC(64OF) D
12OC(54OF) W
Total capacity(W) 6400 6530 8200 9000 11050 11600
Sensitive capacity(W) 6400 6530 8200 9000 11050 11600
Total power input(W) 2950 2280 2980 2950 3100 2630
Sensitive capacity(W)/
Total capacity(W)% 100 100 100 100 100 100
21OC(70OF) D
15OC(59OF) W
Total capacity(W) 6450 6450 7900 8850 10750 11450
Sensitive capacity(W) 6450 6450 7900 8850 10750 11450
Total power input(W) 3100 2400 3080 3100 3220 2750
Sensitive capacity(W)/
Total capacity(W)% 100 100 100 100 100 100
24OC(75OF) D
17OC(63OF) W
Total capacity(W) 6400 6380 7950 8550 10650 11080
Sensitive capacity(W) 6400 6380 7950 8550 10650 11080
Total power input(W) 3150 2500 3130 3200 3400 2930
Sensitive capacity(W)/
Total capacity(W)% 100 100 100 100 100 100
Cooling
Heatling
2.2 Cooling Capacity Tables
ROOM MODEL:30K
CONNECTIVE INDOOR UNIT:
GWH09TB-D3DNA1A/I×2
GWH12TB-D3DNA1A/I×1
OUTDOOR TEMPERATURE DRY
INDOOR
TEMPERATURE
20OC
68OF
25OC
77OF
30OC
86OF
35OC
95OF
40OC
104OF
45OC
113OF
21OC(70OF) D
15OC(59OF) W
Total capacity(W) 7186 8391 9044 8474 6697 5228
Sensitive capacity(W) 6194 6818 7084 6779 6127 5175
Total power input(W) 1736 2108 2826 3099 2566 2172
Sensitive capacity(W)/ Total
capacity(W)% 85.3 81.2 78.3 79.9 91 98.9
24OC(75OF) D
17OC(63OF) W
Total capacity(W) 8074 9106 9696 9149 7195 5631
Sensitive capacity(W) 6950 7474 7659 7414 6703 5585
Total power input(W) 1760 2111 2853 3121 2583 2207
Sensitive capacity(W)/ Total
capacity(W)% 85.65 82 78.9 81 93.1 99.1
27OC(80OF) D
19OC(67OF) W
Total capacity(W) 8884 9921 10310 9863 7635 7543
Sensitive capacity(W) 7533 8027 9587 7665 7169 7359
Total power input(W) 2009 2365 2905 3206 2773 2835
Sensitive capacity(W)/ Total
capacity(W)% 84.55 80.9 92.9 76.9 93.8 97.5
32OC(90OF) D
23OC(73OF) W
Total capacity(W) 9152 10953 11606 10847 8300 6389
Sensitive capacity(W) 8558 8374 8584 8359 7377 6268
Total power input(W) 2025 2402 2955 3267 2668 2244
Sensitive capacity(W)/ Total
capacity(W)% 93.5 76.4 80.9 77 88.8 98

9
Technical Information
Service Manual
ROOM MODEL:36K
CONNECTIVE INDOOR
UNIT:
GWH09TB-D3DNA1A/I×4
OUTDOOR TEMPERATURE DRY
INDOOR
TEMPERATURE
-13.88OC(7OF)D
-15OC(5OF)W
-8.33OC(17OF)D
-9.44OC(15OF)W
-2.22OC(28OF)D
-3.89OC(25OF)W
3.33OC(38OF)D
1.67OC(35OF)W
8.33OC(47OF) D
6.11OC(43OF)W
13.89OC(57OF) D
12.7OC(55OF) W
15OC(59OF) D
10OC(50OF) W
Total capacity(W) 7480 8880 9720 12050 11400 12000
Sensitive capacity(W) 7480 8880 9720 12050 11400 12000
Total power input(W) 3450 3200 2960 3280 2370 2000
Sensitive capacity(W)/
Total capacity(W)% 100 100 100 100 100 100
18OC(64OF) D
12OC(54OF) W
Total capacity(W) 7680 8750 9540 11700 11250 11800
Sensitive capacity(W) 7680 8750 9540 11700 11250 11800
Total power input(W) 3440 3360 3100 3300 2520 2140
Sensitive capacity(W)/
Total capacity(W)% 100 100 100 100 100 100
21OC(70OF) D
15OC(59OF) W
Total capacity(W) 8275 8720 9500 11500 11000 11500
Sensitive capacity(W) 8275 8720 9500 11500 11000 11500
Total power input(W) 3690 3490 3240 3580 2660 2250
Sensitive capacity(W)/
Total capacity(W)% 100 100 100 100 100 100
24OC(75OF) D
17OC(63OF) W
Total capacity(W) 8460 8800 9360 10690 10580 11300
Sensitive capacity(W) 8460 8800 9360 10690 10580 11300
Total power input(W) 3785 3600 3410 3580 2780 2420
Sensitive capacity(W)/
Total capacity(W)% 100 100 100 100 100 100
Cooling
Heatling
ROOM MODEL:36K
CONNECTIVE INDOOR UNIT:
GWH09TB-D3DNA1A/I×4
OUTDOOR TEMPERATURE DRY
INDOOR
TEMPERATURE
20OC
68OF
25OC
77OF
30OC
86OF
35OC
95OF
40OC
104OF
45OC
113OF
21OC(70OF) D
15OC(59OF) W
Total capacity(W) 9560 10300 10400 9430 8045 6900
Sensitive capacity(W) 8662 8880 8900 8435 7750 6800
Total power input(W) 2010 2450 3120 3300 3075 2765
Sensitive capacity(W)/ Total
capacity(W)% 90.6 86.2 85.6 89.4 96.3 98.6
24OC(75OF) D
17OC(63OF) W
Total capacity(W) 9795 11500 11265 10500 8820 7515
Sensitive capacity(W) 8805 9205 9485 9160 8365 7305
Total power input(W) 1995 2435 3125 3400 3085 2790
Sensitive capacity(W)/ Total
capacity(W)% 89.9 80.0 84.2 87.2 94.8 97.2
27OC(80OF) D
19OC(67OF) W
Total capacity(W) 10135 11370 11425 10575 9025 7900
Sensitive capacity(W) 9300 9610 9675 9355 8750 7555
Total power input(W) 2010 2440 3160 3335 3115 2800
Sensitive capacity(W)/ Total
capacity(W)% 91.8 84.5 84.7 88.5 97.0 95.6
32OC(90OF) D
23OC(73OF) W
Total capacity(W) 12170 13200 13250 12020 10390 8700
Sensitive capacity(W) 9875 10220 10155 10045 9575 8450
Total power input(W) 2025 2430 3185 3405 3145 2825
Sensitive capacity(W)/ Total
capacity(W)% 81.1 77.4 76.6 83.6 92.2 97.1

10 Technical Information
Service Manual
Heatling
Cooling
ROOM MODEL:42K
CONNECTIVE INDOOR
UNIT:
GWH09TB-D3DNA1A/I×2
GWH12TB-D3DNA1A/I×2
OUTDOOR TEMPERATURE DRY
INDOOR
TEMPERATURE
-13.88OC(7OF)D
-15OC(5OF)W
-8.33OC(17OF)D
-9.44OC(15OF)W
-2.22OC(28OF)D
-3.89OC(25OF)W
3.33OC(38OF)D
1.67OC(35OF)W
8.33OC(47OF) D
6.11OC(43OF)W
13.89OC(57OF) D
12.7OC(55OF) W
15OC(59OF) D
10OC(50OF) W
Total capacity(W) 7990 9122 9249 12680 11470 11800
Sensitive capacity(W) 7990 9122 9249 12680 11470 11800
Total power input(W) 3580 3380 3320 3580 2380 2020
Sensitive capacity(W)/
Total capacity(W)% 100.0 100.0 100.0 100.0 100.0 100.0
18OC(64OF) D
12OC(54OF) W
Total capacity(W) 8100 9080 9400 12700 11250 11700
Sensitive capacity(W) 8100 9080 9400 12700 11250 11700
Total power input(W) 3550 3400 3300 3625 2530 2150
Sensitive capacity(W)/
Total capacity(W)% 100.0 100.0 100.0 100.0 100.0 100.0
21OC(70OF) D
15OC(59OF) W
Total capacity(W) 8328 9053 9345 12200 11000 11420
Sensitive capacity(W) 8328 9053 9345 12200 11000 11420
Total power input(W) 3660 3570 3400 3760 2650 2300
Sensitive capacity(W)/
Total capacity(W)% 100.0 100.0 100.0 100.0 100.0 100.0
24OC(75OF) D
17OC(63OF) W
Total capacity(W) 8230 8960 8750 12100 10820 11400
Sensitive capacity(W) 8230 8960 8750 12100 10820 11400
Total power input(W) 3760 3690 3400 3910 2820 2420
Sensitive capacity(W)/
Total capacity(W)% 100.0 100.0 100.0 100.0 100.0 100.0
ROOM MODEL:42K
CONNECTIVE INDOOR UNIT:
GWH09TB-D3DNA1A/I×2
GWH12TB-D3DNA1A/I×2
OUTDOOR TEMPERATURE DRY
INDOOR
TEMPERATURE
20OC
68OF
25OC
77OF
30OC
86OF
35OC
95OF
40OC
104OF
45OC
113OF
21OC(70OF) D
15OC(59OF) W
Total capacity(W) 9675 10320 10700 9900 8640 6800
Sensitive capacity(W) 8720 8550 8510 8600 8000 6590
Total power input(W) 1980 2480 3650 3635 3600 2750
Sensitive capacity(W)/ Total
capacity(W)% 90.1 82.8 79.5 86.9 92.6 96.9
24OC(75OF) D
17OC(63OF) W
Total capacity(W) 9840 11130 11295 10730 9915 7555
Sensitive capacity(W) 8615 9075 9155 9320 9065 7200
Total power input(W) 1990 2685 3555 3485 3645 2775
Sensitive capacity(W)/ Total
capacity(W)% 87.6 81.5 81.1 86.9 91.4 95.3
27OC(80OF) D
19OC(67OF) W
Total capacity(W) 10990 12130 12700 11960 10250 8400
Sensitive capacity(W) 9415 9830 10000 9900 9550 7820
Total power input(W) 2000 2820 3600 3590 3670 2800
Sensitive capacity(W)/ Total
capacity(W)% 85.7 81.0 78.7 82.8 93.2 93.1
32OC(90OF) D
23OC(73OF) W
Total capacity(W) 13150 14010 14235 12135 11100 8750
Sensitive capacity(W) 10005 10100 10355 9910 9590 8215
Total power input(W) 2210 2515 3280 3555 3735 2830
Sensitive capacity(W)/ Total
capacity(W)% 76.1 72.1 72.7 81.7 86.4 93.9

11
Technical Information
Service Manual
3. Outline Dimension Diagram
AMTCM4H4R36 AMTCM4H4R42
AMTCM4H4R30
Unit:inch
40
42 1/2
24 13/16
17 21/64
14 1/4
14 51/64
43 27/64
38 27/64
36 7/32
17 21/64
14 37/64
31
24
1523/32
Unit:inch

12 Technical Information
Service Manual
4. Refrigerant System Diagram
Schematic Diagram of Free Match Series Inverter Heat Pump System
M
Heat Exchanger
Four-way Valve
Compressor
Silencer
Gas/Liquid Separator
Heat Exchanger
Heat Exchanger
Heat Exchanger
Heat Exchanger
Heat Exchanger
Heating
Cooling
Outdoor Uint
Indoor Uint
Electronic Expansion Valve
Schematic Diagram of Free Match Series Inverter Heat Pump System
The outdoor and indoor units start to work once the power is switched on. During the cooling operation,
the low temperature, low pressure refrigerant gas from the heat exchanger of each indoor unit gets together
and then is taken into the compressor to be compressed into high temperature, high pressure gas, which will
soon go to the heat exchanger of the outdoor unit to exchange heat with the outdoor air and then is turned into
refrigerant
liquid. After passing through the throttling device, the temperature and pressure of the refrigerant
liquid will further decrease and then go the main valve.
After that, it will be divided and go to the heat exchanger
of
each indoor unit to exchange heat with the air which needs to be conditioned. Consequently, the refrigerant
liquid
become low temperature, low pressure refrigerant gas again. Such a refrigeration cycle goes round and
round
to achieve the desired refrigeration purpose. During the heating operation, the four-way valve is involved
to
make the refrigeration cycle run reversely. The refrigerant radiates heat in the heat exchanger of the indoor
unit
(so do the electric heating devices) and absorb heat in the heat exchanger of the outdoor unit for a heat
pump heating cycle so as to achieve the desired heating purpose.
High Pressure Swicth
Filter
Eutectic Stopper

13
Technical 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
● Outdoor Unit
●Instruction
AMTCM4H4R30
63624100019
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3

14 Technical Information
Service Manual
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AMTCM4H4R36 AMTCM4H4R42
These circuit diagrams are subject to change without notice, please refer to the one supplied with the unit.
63624100020

15
Technical Information
Service Manual
5.2 PCB Printed Diagram
● TOP VIEW
● BOTTOM VIEW
1 T25AH 250V: Fuse
2 N: terminals of neureal wire
3 AC-L: terminals of line wire
4 PFC electrocircuit
5 U/V/W: terminals of
compressor
6 OVC-COMP: terminals of
overload protector
7HPP: terminals of high
pressure switch
8 EVA-EVE: terminals of
EXV(electronic expansion
valve)
9 CN802-CN803: terminals of
temperature sensor
10 COMU: terminals of
communication
11 OFAN: terminals of fan
12 4WAY: terminals of 4-way
valve
13 HEAT: terminals of
compressor band heater
14 HEAT1: terminals of bottom
band heater
15 K101: Main relay
16 L4-L5: choke
12 345
6
7
8
10 91113 1412
15
16

16 Technical Information
Service Manual
6. Function and Control
1.Function Control
1) Cooling mode
a. Turning on the unit for cooling operation, and if any one of the indoor units satisfy the cooling operation condition, the system will start
for cooling operation; and the electronic expansion valve, the outdoor fan and the compressor start operation.
b. When some of the indoor units satisfy the stop-condition while some indoor units does not satisfy the stop-condition, the compressor
does not stop, the compressor adjust the frequency according to demand. For the indoor unit with stop-condition satisfies, the
corresponding electronic expansion valve will be closed.
c. Change Cooling mode to heating mode
When change the unit to heating mode from cooling mode, the whole system will stop rst. Then the system will restart in heating mode
after the compressor stops.
d. 4-way valve
In this mode, the 4-way valve is closed.
e. 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 after starting and then it will run in
set speed.
2) Dry mode (dehumidication mode)
This mode is the same as cooling mode;
3) Heating mode
a. Turning on the unit for heating operation, If any one of the indoor unit satisfy the heating condition, the system will start to run in heating
mode
b. If all the indoor units satisfy the stop-condition, the compressor stops and the outdoor fan stops after 1min;
c. If only part of the indoor units satisfy the stop-condition, the compressor decrease the frequency immediately and operates according to
demand.
d. Change Heating mode to cooling mode or dehumidication mode, the whole system will stop rst, then restart under the required mode.
e. Defrosting function
When the defrosting condition is satised, the 4-way valve reverses the direction, the outdoor fan stop. After the 4-way valve reverses the
direction, the frequency of compressor rises, and the unit will start defrosting under cooling cycle.
f. Oil-return control in heating mode
a)If the whole system runs in low frequency for a long time, the system will run a oil-return operation in high frequency, the oil-return
operation will runs for 60 second.
4) Fan mode
Only indoor fan run. Compressor, outdoor fan and 4-way valve are closed .
2.Protection Function
1) Mode conict protection of indoor units
When the setting mode is different of different indoor unit, the unit runs in below status:
a. The system mode is determined by the rst turning on indoor unit except indoor unit is in fan mode. Cooling mode (dry mode) is in
conict with heating mode.
b. If the rst turning on unit is fan mode, and the second turning on unit is cooling or heating mode, then the system will run in cooling or
heating mode.
2) Overload protection
If the tube temperature at the high pressure side is higher than normal, the compressor frequency is restricted or decreased to normal
operation frequency.

17
Technical Information
Service Manual
3) High exhaust temperature protection
If the exhaust temperature is higher than protection value, the compressor stops running.
If the exhaust temperature protection continuously appears for 6 times, the compressor can’t resume running. In this case, only by cutting off
the power and then reenergize that the compressor can restart. If the running duration of the compressor is longer than 10min, the protection
times will be cleared to zero time.
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. If the outdoor unit receives the communication data of that
indoor unit later, the communication malfunction will be cleared.
5) System high-pressure protection
a. When the high-pressure switch detects the system pressure higher than limit ,then the high-pressure switch cuts off, the system will stop to
run.
b. If high-pressure protection is detected for one time, only by cutting off the power and then reenergize that the compressor can restart.
6) Compressor overload protection
No matter the compressor is on or off, when the compressor overload switch is detected activated, the system will stop and indoor unit
will display H3. If the compressor overload protection appears for more than 6 times, in this case, only by cutting off the power and then
reenergize that the compressor can restart. If the running duration of the compressor is longer than 30min, the protection times will be
cleared to zero.
7) Antifreeze protection
Under cooling and dry mode, 6minutes after the compressor is started:
When it is detected for 10 minutes successively that Tevap. Is less than -2OC(varying with indoor unit), the antifreeze protection will be
activated, in which case the outdoor unit will immediately shut off the indoor electronic expansion valve and the capacity will be set to “0”.
If Tevap. exceed 10OC and the compressor has remained at OFF for at least 3minutes, the compressor will resume its original operation state.

18 Installation and Maintenance
Service Manual
Part Ⅱ: Installation and Maintenance
Follow this instruction to complete the
installation work.
Please carefully read this manual
before unit startup and service.
Installation should be conducted by
dealer or qualified personnel. Please
do not attempt to install the unit by
yourself. Improper handling may result
in water leakage, electric shock or fire
disaster etc.
Make sure the unit can be earthed
properly and soundly after plugging into
the socket so as to avoid electric shock.
Please do not connect the groundwire
to gas pipe, water pipe, lightning rod or
telephone line.
Before installation,please check if the
power supply is in accordance with
the requirements specified on the
nameplate.And also take care of the
power safety.
Be sure to use the excluxive
accessory and part to prevent the
water leakage,electric shock and fire
accidents.
Wire size of power cord should be large
enough The damaged power cord and
connection wire should be replaced by
exclusive cable.
Never fail to comply with the nitrigen
charge requirements. Charge nitrogen
when welding pipes.
Please firstly connect the wired
controller before energization,otherwise
wired controller can not be used.
If refrigerant leakage happens
during installation, please ventilate
immediately.Poisonous gas will emerge
if the refrigerant gas meets re.
After connecting the power cord, please
fix the electric box cover properly in
order to avoid accident.
Never short-circuit or cancel the
pressure switch to prevent unit damage.
Before using the unit, please. check
if the piping and wiring are correct
to avoid water leakage, refrigerant
leakage,electric shock, or re etc.
exclusive
N 2
Forbidden Items! It indicates that improper operation might lead to human casualty or sever injury.
Items need to be followed. It indicates that improper operation might lead to personal injury or property damage.
7. Safety Precautions