Service manual
75
6.Connect the pipeline with 
the suction and discharge 
ports of the compressor
Reconnect the pipeline
to the compressor as the
same as the previous status.
●Burn the joint of the connecting 
pipe and then connect the 
pipeline wit the compressor.
Note: never let the ame touch 
any other component.
7. Reconnect the power cord
Label the color of the
power cords and the
code of the terminals
● Tight the screws used to x the 
power cord with a screwdriver.
●Reconnect the power cord.
Note: reconnect the power 
cord in accordance with the 
labeled color and terminals.
8.Put the electric heating belt 
and the discharge temperature 
sensor etc. in place.
9.Check if the compressor 
runs reversely and if 
the lubricant leaks.
Assembly and Disassembly of the 4-Way Valve
Steps Illustrations Operation Instructions
1. Take out the coil of 
the 4-way valve.
/
●Loosen the screws used 
to x the coil of the 4-way 
valve with a screw driver 
2. Separate the 4-way valve 
away from the connecting pipe.
Pull out the 4-way
valve through the
welding gun
●Burn the four joints of the 4-way 
valve with a welding gun and then 
pull out the connecting pipe.
Note: never let the ame touch 
any other component.
3. Replace the 4-way valve 
and reconnect the 4-way valve 
with the connecting pipe.
Restore the 4-way
value in the previous
status and fix it by
the welding gun.
●Replace the 4-way valve and 
weld the four joints of the 4-way 
valve with a welding gun.
Note: never let the ame touch 
any other component.
4. Put the coil of the 
4-way valve in place.
/
●Tighten the screws used 
to x the coil of the 4-way 
valve with a screwdriver
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