Gree GRS-Cm28/NaA-M - Page 70

Chapter Ⅳ Maintenance（3. Maintenance of Key Parts）
68
2 、 Remove
the nuts fixing the
compressor
footing.
Compressor
Nut
● Use bending bar or other
tools to unfasten the
compressor fixing nuts.
3、Cut off the
pipes from the
compressor.
● When using a soldering gun,
weld the pipes quickly to
prevent pipeline from
overburning;
● In order to guarantee
compressor replacement and
for furture disassembly
analysis, do not damage the
compressor.
4 、 Remove
the compressor
from the base
plate and locate a
new compressor
onto the
baseplate.
● When removing the
compressor, be careful not to
damage compressor‟s rubber
grommet;
● The replaced compressor
should be well sealed to
prevent water from getting in;
● Place the newly replaced
compressor onto the rubber
grommets. Wear steel bushing
on the center of the grommet;
● Tighten up the nuts to the
position of steel bushing.
5 、 Connect
the suction port
and discharge port
of compressor to
the system
pipeline. Connect
power cord and
check whether the
compressor can
run normally.
● Connect the suction and
discharge pipeline to the
compressor by welding. Fill
nitrogen for the welding;
● After welding, it is required
to fill high pressure nitrogen to
conduct leak test;
● Power on the unit and
energize the AC contactor of
the compressor manually to
turn compressor on for 2~3
seconds;
● If compressor is reversed,
ear-piercing noise will occur.