Use and Care Manual
Table Of Contents
- Foreword
- Safety Notice
- CONTENTS
- Safety Notice on Maintenance
- Safety Notice on Operation
- 1 Product Introduction
- NOTE: 1 Ton =12000Btu/h = 3.517kW 1.2 Electrical Parameters
- 2 Control
- 3 Troubleshooting
- 3.1 Wiring Diagrams
- 3.2 PCB Layout
- 3.3 Error Code
- 3.4 Troubleshooting
- 3.4.1 “E1” Compressor High Pressure Protection
- 3.4.2 “E3” Compressor Low-pressure Protection, Refrigerant Shortage Protection, Refrigerant Recovery Mode
- 3.4.3 “E4” Compressor Air Discharge High-temperature Protection
- 3.4.4 “F2” Condenser Temperature Sensor Error
- 3.4.5 “F3” Outdoor Ambient Temperature Sensor Error
- 3.4.6 “F4” Discharge Temperature Sensor Error
- 3.4.7 “F6” ODU Tube Temperature Sensor Error
- 3.4.8“EE” ODU Memory Chip Error
- 3.4.9 “H4” Overload
- 3.4.10 “H5” IPM Protection
- 3.4.11 “H6” DC Fan Error
- 3.4.12 “H7” Driver Out-of-Step Protection
- 3.4.13 “HC” PFC Protection
- 3.4.14 “Lc” Startup Failure
- 3.4.15 “P0” Driver Reset Protection
- 3.4.16 “P5” Over-Current Protection
- 3.4.17 “P6” Master Control and Driver Communication Error
- 3.4.18 “P7” Driver Module Sensor Error
- 3.4.19 “P8” Driver Module High Temperature Protection
- 3.4.20 “PA” AC Current Protection
- 3.4.21 “Pc” Driver Current Error
- 3.4.22 “PL” Bus Low-Voltage Protection
- 3.4.23 “PH” Bus High-Voltage Protection
- 3.4.24 “PU” Charge Loop Error
- 3.4.25 “ee” Drive Memory Chip Error
- 3.5 Failures Not Caused by Errors
- 4 Maintenance
- Appendices
- 1 Resistance/Temperature Lists of Temperature Sensors
- 1.1 Voltage List of 15 KΩ Temperature Sensors (including ODU temperature sensors)
- 1.2 Voltage List of 20 KΩ Pipeline Temperature Sensors (including temperature sensors for defroster, IDU and ODU pipes)
- 1.3 Voltage List of 50 KΩ Discharge Temperature Sensors (including discharge air temperature sensor)
- 2 Temperature/Pressure List of Refrigerant
- 3 Operation Tools
MRCOOL DC INVERTER COOLING ONLY CONDENSING UNIT
86
No.
Material name
Finished product code
14
Cabinet Assy
000006060040
15
Axial Flow Fan
1043410000801
16
Diversion Circle
10474100003
17
Brushless DC Motor
150104060013
18
Front Grill
0157280000301
19
Front Side Plate
012050000007P03
20
Cabinet
012022000003P03
21
Handle
2690410001603
22
Gas-Liquid Separator
07423902
23
Compressor and Fittings
009001060218ST
24
Compressor Gasket
009012000004
25
Chassis Assy
209058060266
26
Pressure Protect Switch
46020007
27
Cut off Valve
07330000001
28
Filter
07224803
29
Fusible Plug
035222000004
30
Joint
06652200001
31
Pressure Protect Switch
4602000603
32
Silencer
07245012
33
Cut-off Valve 3/8(N)
071302391
34
Rear Side Plate
012076000021P03
35
Pressure Sensor
430044000016
36
Rear Grill (Medium Gray)
0157410001401P
37
Drainage Hole Cap
76715005
38
Drainage Joint
26113009
39
Temperature Sensor
3900007201
40
Temperature Sensor
39008000049G
41
Compressor Overload Protector(External)
00183032
42
Compressor Overload Protector(External)
00183031