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17.2.4. Electronic Components (MWHA018S4)
Step 1.
Remove the connector for the compressor.
Step 2.
Pull out connectors for the condenser coil
temperature sensor (T3), outdoor ambient
temperature sensor (T4) and discharge
temperature sensor (TP).
Step 3.
Disconnect the four-way valve wire.
Step 4.
Disconnect the ground wire.
Step 5.
Remove the connector for the indoor unit.
Step 6.
Remove electronic control box.
17.2.5. Electronic Components (MWHA024S4)
NOTE:
Antistatic gloves must be worn when you
dissemble the electronic box.
NOTE:
Remove the panel plate before disassembly the
fan.
Step 1.
Remove the connector for the compressor.
Step 2.
Pull out the two blue wires connected to the
expansion value (not applicable to AC units only)
Step 3.
Pull out connectors for the condenser coil
temperature sensor (T3), outdoor ambient
temperature sensor (T4) and discharge
temperature sensor (TP).
Step 4.
Disconnect the expansion valve.
Step 5.
Remove electronic control box.
Compressor
Reactor
4-way valve
Fan Motor
EEV
T3, T4 and TP
17.2.6. Fan Disassembly (MWHA009S4 and
MWHA012S4)
NOTE:
Antistatic gloves must be worn when you
dissemble the electronic box.
NOTE:
Remove the panel plate before disassembly the
fan.
Step 1.
Remove nut securing the fan with a spanner.
Step 2.
Remove the screws securing the top cover.
Summary of Contents for MWHA009S4
Page 14: ...14 Manual control button Figure 15 Manual Button Location...
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