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Fig. 7 Temperature Controller (4.25”L X 3.75D X 4.25”H)
2. Evaporator Unit Installation
1) WM-25~85SFCH evaporator units can be installed outside a wine cellar. It
shall not be exposed to temperatures higher than 85 °F.
2) Air supply shall be unobstructed minimum 12” for a direct blow installation;
leave 2” clearance for a deflector installation; air return shall be unobstructed
minimum 6”.
3) Secure the ducts with conduits to the cellar exterior walls and make sure they
are not curled, twisted, bent and clogged.
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.
3. 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) If a water pump is used, install it before the water inlet so that the condenser
cooling water is fed from the discharge side of the pump.
5) Service valve operation
1 - Process & Manometer
2 – Receiver Discharge or Compressor Suction
3 – Liquid Line or Suction Line
4 - Pressure Control
