SterlingTEK A0551797 manual Control Nipple, Control Probe, Chilled Water Manifold

4-11 Control Nipple

All SSC Series chilling station evaporators have two control nipples. The flow switch, freezestat, and flush port are located in the control nipple. Optional pressure gages can be mounted in the control nipples to aid in achieving proper flow through the evaporator and balancing flows.

Coupling mounts for customer-installed pressure gauges are included on both control nipples. Pressure drop between evaporator entering water pressure and evaporator leaving water pressure can be converted to gallons per minute using the pressure drop charts provided.

4-12 Control Probe

Two control probes sense temperatures. One probe measures the temperature of the hot well and the other does the same for the cold well of the reservoir. These temperatures are used by the PLC controller to sequence the compressors, based on load.

4-13 Chilled Water Manifold

The chilled water manifold allows one-point connections of TO PROCESS piping. The Sch. 40 steel piping includes butterfly valves at each evaporator for flow balancing and circuit isolation; optional pressure gauges can be installed.

4-14 Condenser Water Manifold

The condenser water manifold allows one-point connection of TO TOWER (drain) and FROM TOWER (city water) piping. Sch. 40 steel include butterfly valves for each condenser. Drain points are at the bottom of the header.

SSC Series Central Chilling Stations Page 31 of 86