Gree GMV5 Series Service Manual page 188

2. Compressor Replacement (GMV-450WM/A)
Step 1: Disconnect power supply.
Turn off the power switch of the ODUs and disconnect the line of the power supply and the power line of
the ODUs. Meanwhile, cover the power line with tape for insulation and put a warning sign beside the
power switch to prevent electric shock.
Step 2: Clear electric parts (do not need to disassemble the electric box).
Before removing compressors' lines, temperature sensors, and electric heaters, mark them so that you
will reconnect them in a correct manner after clearing. The removed electric box must be covered and
protected from wind and sun.
4. The method
of removing the
box at the left
side is similar
to that of
removing this
electric box.
For GMV5 series, only GMV-400WM/B and GMV-450WM/B units are configured with the left electric box,
which contains mainly the drive of the compressor E405DHD-38D2YG. After the box is removed, take
care with the removal of electric parts' lines. DO NOT pull the lines with excessive force; or they may be
broken. The removed electric box must be protected for dustproof and waterproof purposes.
GMV5 DC INVERTER VRF UNITS SERVICE MANUAL
185
1. Unscrew
the electric
box.
2. Make
sure to
support the
electric box.
3. Take the
electric box
out.