72
8.6 CHECK PROCEDURES
8.6.1 Temperature Sensor Check
Warning: Be sure to turn off all power supplies or disconnect all wires to avoid electric
shock. Operate after co mpressor and coil have returned to normal temperature to avoid
any injuries.
1. Disconnect the temperature sensor from PCB (refer to
Chapter
6 and
Chapter 7
).
2. Measure the resistance value of the sensor using a multi-meter.
3. Check corresponding temperature sensor resistance value table (refer to
Chapter 9
).
Note: The picture and the value are only for reference, actual condition and specific value may
vary.
8.6.2 Compressor Check
1. Disconnect the compressor power cord from outdoor PCB (refer to
Chapter 7
).
2. Measure the resistance value of each winding using a multi-meter.
3. Check the resistance value of each winding, according to the following table.
“Wall” Type Active Line R32 Refrigerant AC: 6. Troubleshooting
[6]-35
6.8 CHECK PROCEDURES
6.8.1 Temperature Sensor Check
WARNING
Be sure to turn off all power supplies or disconnect all wires to avoid electric shock. Operate after com-
pressor and coil have returned to normal temperature to avoid any injuries.
1. Disconnect the temperature sensor from PCB (refer to
Chapter 4
and
Chapter 5
).
2. Measure the resistance value of the sensor using a multi-meter.
3. Check corresponding temperature sensor resistance value table (refer to
Chapter 7
).
Note: The picture and the value are only for reference, actual condition and specific value may vary.
6.8.2 Compressor Check
1. Disconnect the compressor power cord from outdoor PCB (refer to
Chapter 5
).
2. Measure the resistance value of each winding using a multi-meter.
3. Check the resistance value of each winding, according to the following table.
Input Terminals
Red
Black
Blue
1
2
3
Blue
Red
Black
“Wall” Type Active Line R32 Refrigerant AC: 6. Troubleshooting
[6]-35
6.8 CHECK PROCEDURES
6.8.1 Temperature Sensor Check
WARNING
Be sure to turn off all power supplies or disconnect all wires to avoid electric shock. Operate after com-
pressor and coil have returned to normal temperature to avoid any injuries.
1. Disconnect the temperature sensor from PCB (refer to
Chapter 4
and
Chapter 5
).
2. Measure the resistance value of the sensor using a multi-meter.
3. Check corresponding temperature sensor resistance value table (refer to
Chapter 7
).
Note: The picture and the value are only for reference, actual condition and specific value may vary.
6.8.2 Compressor Check
1. Disconnect the compressor power cord from outdoor PCB (refer to
Chapter 5
).
2. Measure the resistance value of each winding using a multi-meter.
3. Check the resistance value of each winding, according to the following table.
Input Terminals
Red
Black
Blue
1
2
3
Blue
Red
Black
Summary of Contents for HCNI 533
Page 1: ...MARK HEAT PUMP SPLIT UNIT 0662680 Technical manual EN...
Page 2: ...2...
Page 16: ...16 3 4 Outdoor Units Printed Circuit Board Diagram HCNMX 353 HCNI 533...
Page 81: ...81 EN...
Page 82: ...82...
Page 83: ...83 EN...
