Gree GUHD series - Page 148

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145
Disassembly and Assembly of 4-way valve
Note: Before removing the 4-way valve, make sure that there is no refrigerant inside the pipe system and that the power
has been cut off.
Step Illustration Handling Instruction
1. Remove the 4-way
valve
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connected on the four opennings of
4-way valve. Then, pull them out from
4-way valve.
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record the orientation of 4-way valve
and installing position of each opening.
2. Remove 4-way valve
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unit.
3. Connect the new
4-way valve to the pipe.
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position.
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wrap the valve body with wet cloth,
thus to prevent the guide inside the
valve body from burn. Also take care to
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pipe.
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nitrogen pressure kept at 0.5±0.1kgf/
cm
2
(relative pressure).
4.Establish vacuum
inside the system
through liquid valve.
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through liquid valve.