Special Control SiUS39-602
56 Function
3.6 Restart Standby
Forced standby is performed to prevent frequent repetition of ON/OFF of the compressor, and
to equalize pressure in the refrigerant system.
Note 1. Hold: maintain the previous position (mode) before entering this operation.
Actuator Operation
Compressor OFF
Outdoor unit fan
Ta > 86°F: STEP5
Ta ≤ 86°F: OFF
Four way valve 1 Holds *Note 1
Four way valve 2 Holds *Note 1
Main motorized valve (EV1) 0 pls
Sub motorized valve (EV2) 0 pls
Sub-cooling motorized valve (EV2) 0 pls
Hot gas bypass valve (SVP) OFF
Oil equalization valve (SVO) ON
Receiver gas charging valve (SVL) OFF
Receiver gas discharge valve (SVG) OFF
Discharge pipe stop valve (SVR) Holds
Non-operating unit liquid pipe stop
valve (SVSL)
ON
High pressure gas pipe pressure
reduction valve (SVC)
Holds
Ending conditions 4 min.
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