Mitsubishi Electric Mr.Slim PUZ-HA42NKA Service Manual page 17

9-1. REFRIGERANT COLLECTING (PUMP DOWN)
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Warning:
When pumping down the refrigerant, stop the compressor before disconnecting the refrigerant pipes.
pressure in the refrigeration cycle could become extremely high if air is drawn in, causing the pipes to burst, personal
injury, etc.
9-2. START AND FINISH OF TEST RUN
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Note:
The operation cannot be changed by SW4-2 during test run. (To change test run mode, stop the unit by SW4-1,
change the operation mode and restart the test run by SW4-1.)
OCH567
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<SW4>
ON
OFF
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Stop Operation
Cooling Heating