Wine-Mate SSHWC Series - Manual (Page 20)

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4) There is a gravity drain system used, so the unit shall be installed level or with
a slight slope downward the drain connection and the drain line shall be
installed slope down toward the drain. If rise-up is needed, a condensation
pump must be used.
4. Condensing Unit Installation
1) Condensing unit shall be elevated to avoid possible flooding and shaded from
direct sun. The location shall be adequately ventilated and shall not be
subject to freezing temperatures.
2) Water must be supplied to WM-250~850SCU-WC at all times during
operation, with the maximum outlet temperature of 120 °F. A sufficient
amount of water must be provided for constant head pressure and proper
cooling, but excessive water flow will cause the unit working inefficiently.
3) The maximum permissible water pressure is 150 PSIG. If water pressure is
excessive, a pressure reducing valve must be used to reduce the water
pressure.
4) Service 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.
BACK POSITION FRONT POSITION MIDDLE POSITION
Fig. 8 ROTALOCK Valve Operation