In Case Of Removal Of The Compressor From The Rear Side - Toshiba HFCR407C Service Manual

NOTE:
Weight of the compressor is approx. 45kg.
• Remove the nuts fixing the compressor.
• Remove the compressor.
Installation
• Install the compressor in the reverse order of removing the compressor.
NOTE:
After installation, fully open the valve at bottom side of the compressor, using a hexagonal wrench.
Vacuuming
• Connect the vacuum pump to the check joint of the discharge and suction pipes, and operate the vacuum pump.
• Perform vacuuming until the vacuum low pressure gauge indicates 0.750 (mmHg).
Charging of refrigerant
Add refrigerant of the same volume as the recovered refrigerant into the check joint of the suction pipe.

[In case of removal of the compressor from the rear side]

1. Outdoor unit (Inverter and fixed-speed units)
MM-A0280HT, MM-A0280HX, MM-A0224HT, MM-A0224HX
MM-A0280CT, MM-A0280CX, MM-A0224CT, MM-A0224CX
Removing of parts
• Remove the front painted panel.
• Remove electrical parts cover.
• Disconnect all wires connected to the electric parts box,
temp. sensor, pressure sensor, complete, 2-way valve, PMV, etc.
• Remove the rear painted panel.
• Remove the crank case heater.
(Only for fixed-speed unit)
• Remove the sound-proof mat.
• Remove the terminal cover of the compressor, and remove
all wires.
• Remove two temp. sensors for oil detection.
• Fully close the valve located under the compressor using a
hexagonal wrench.
Extraction of oil from compressor
• Cut the case bypass located at the bottom of the compressor by
the same height as that of the suction pipe.
• Connect hose to the cut case bypass, and insert the opposite
side of the hose in the container in which oil is discharged. 7.5 l or
more oil may flow through the hose, so use a container with
capacity of 8 l or more.
• Apply nitrogen gas with approx. 0.02MPa from service valve at
gas side to extract oil.
(Extract oil completely.)
Replacing the compressor
Compressor replacement procedure
151
Sensor to detect oil
Brazed
positions to
be removed
Oil tank
Compressor
19
Fixing metal