Caution:
Turn off the power switch before connecting or disconnecting the connector. Failure to do so could damage
the board.
Switch on the power to check
whether the fan begins to run or not. Check
whether the red indicator LED2 of fan board is
lighted or not
NO
YES
Switch on the power
to check whether the fan
begins to run or not. See if
the red indicator LED2 of
fan board is lighted or not
NO
Replace
the motor
YES
Replace the
fan board
After the fan
runs for ten seconds,
check to see if the red
indicator LED2 of fan
board is lighted or not
YES
Replace the
power circuit
of fan board
NO
check
whether after the fan
runs for thirty
seconds to one minute,
the red indicator
LED2 of fan board
is lighted and there
is fault P9
YES
Replace the
Main board
NO
Normal
5
6
4
3
2
1
1.
Motor signal feedback port
2.
Power supply indicator lamp
3.
Fan motor U, V, W output port
4.
Error indicating lamp
5.
PCB control signal input port
6.
Program input port
* The normal value of output voltage
between P and N terminal on fan module is
DC 310V for 208-230V ODU.
NOTE:
208/230V 3Ph 60Hz
63
Summary of Contents for 38VMA Series
Page 8: ...II Refrigerant Circuit 1 Refrigerant Circuit Diagram Figure 17 38VMA072 096 120HDS 8...
Page 9: ...Figure 18 38VMA144HDS 9...
Page 11: ...2 Functional Parts Layout Figure 19 38VMA072 096 120HDS 11...
Page 12: ...Figure 20 38VMA0144HDS 12...
Page 14: ...Figure 22 Cooling Oil Return 14...
Page 15: ...Figure 23 Heating Oil Return and Defrost 15...
Page 16: ...Figure 24 Heating Operation 16...
Page 17: ...b 38VMA144HDS Figure 25 Cooling Operation 17...
Page 18: ...Figure 26 Cooling Oil Return 18...
Page 19: ...Figure 27 Heating Oil Return and Defrost 19...
Page 20: ...Figure 28 Heating Operation 20...
Page 21: ...III Function and Control 1 Operation Mode Figure 29 Operation Mode 21...
Page 77: ...VIII Appendix 1 Wiring Diagram Figure 36 38VMA072 096 120HDS5 1 77...
Page 78: ...Figure 37 38VMA144HDS5 1 78...
Page 79: ...Figure 38 38VMA072 096 120HDS6 1 79...
Page 80: ...Figure 39 38VMA144HDS6 1 80...
Page 81: ...2 Electronic Control Box Layout Figure 40 38VMA072 096 120HDS5 1 Figure 41 38VMA144HDS5 1 81...
Page 82: ...Figure 42 38VMA072 096 120HDS6 1 Figure 43 38VMA144HDS6 1 82...
Page 83: ...Figure 44 Main control board layout Figure 45 ENC1 Outdoor unit addressing 83...
Page 84: ...Figure 46 ENC4 network addressing Figure 47 ENC3 S12 Indoor unit quantity setting 84...
Page 85: ...Figure 48 S5 Running mode priority setting Figure 49 S6 Auto addressing 85...
Page 86: ...Figure 50 S11 anti snow setting Figure 51 S16 Mode setting 86...
Page 87: ...Figure 52 S17 Heating mode setting Figure 53 S18 Cooling mode setting 87...
Page 93: ...Figure 55 Control Board Views 93...
Page 97: ...2 38VMA144HDS5 1 Figure 56 3 Phase Heat Pump Exploded View 97...
Page 98: ...98...
Page 99: ...Figure 57 Control Board Views 99...
Page 103: ...3 38VMA072HDS6 1 38VMA096HDS6 1 38VMA120HDS6 1 Figure 58 3 Phase Heat Pump Exploded View 103...
Page 104: ...Figure 59 Control Board Views 104...
Page 108: ...4 38VMA144HDS6 1 Figure 60 3 Phase Heat Pump Exploded View 108...
Page 109: ...109...