Wine-Mate DS Series - Manual (Page 20)

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Service Instructions
1. Service Valve Operations
BACK POSITION FRONT POSITION MIDDLE POSITION
Fig. 7 ROTALOCK Valve Operation
BACK POSITION FRONT POSITION MIDDLE POSITION
Fig. 8 Base Valve Operation
1-Process or Manometer; 2-Receiver Discharge or Compressor Suction
3-Liquid Line or Suction Line; 4-Pressure Control
Back Position: Normal operation after installation is complete, process or
manometer port is closed.
Front Position: Storage or shipping operation, liquid or suction line connection
is closed.
Middle Position: Installation operation, all ports are open for evacuation, charge
and manometer.
2.
Checking Pressure Control Settings
1) Use of the adjustable pressure control
Suction pressure setting: Cut out=5 psig; Cut in=25 psig; Differential=20 psig