Hitachi mini-HNRQ1 Series Service Manual page 131

MAINTENANCE
● Remove the electrical box from the front of outdoor unit.
Model: 4~6.5HP
Note:
Remove the electrical box after disconnecting wires.
(1) Remove the 4-Way valve coil, the expansion valve coil and the solenoid valve coil.
(2) Disconnect the fasten terminals from high pressure switch and pressure sensor.
(3) Disconnect the fan motor connectors and thermistors from the outdoor unit PCB.
(4) Disconnect the compressor wires and loosen all cord clamps.
(5) When mounting the electrical box, join and fit the electrical box and the partition plate into the outdoor
unit.
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