Midea HB-A100/CGN8-B, Руководство по обслуживанию

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M thermal Split
202004 69
Procedure 4.12.4
H6 / HH
is blowing towards the fan, making
the fan running in the wrong direction
Yes
Change the outdoor unit s installation direction or
build a shelter to protect the fan from strong wind
No
DC fan wire is loosed
1
Yes
Reconnect DC fan wire
No
The fan motor is blocked or has failed
Yes
Remove obstruction or replace the fan motor
No
Replace inverter module(single phase model) or
outdoor unit main PCB(three phase model)
Notes:
1. Refer to Figures 4-1.1 to 4-1.4 in Part 4, 1.1 and to the M thermal Split Engineering Data Book, Part 4 Wiring
Diagrams .
2. Measure the voltage between the DC fan motor power supply wires. The normal voltage is 15V when the unit is in standby. If the voltage
is significantly different from 15V, the IPM module on the inverter module is damaged. DC fan connection are port CN19 on the MHA-V4(6,8,10)W/D2N8-B
outdoor unit inverter module PCB (labeled 5 in Figure 4-2.5 in Part4, 2.3 "Main PCB for Refrigerant System, Inverter Module"). port CN19 on the
MHA-V12(14,16)W/D2N8-B outdoor unit inverter module PCB (labeled 4 in Figure 4-2.6 in Part 4, 2. 3 "Main PCB for Refrigerant System, Inverter Module"),
port CN109 on the MHA-V12(14,16)W/D2RN8-B outdoor unit refrigerant system main PCB (labeled 30 in Figure 4-2.4 in Part 4, 2. 3 "Main PCB for
Refrigerant System, Inverter Module").
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