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Страница 2: ...accessible to servicing Drain connections should be provid ed at all low points to permit complete drainage of chiller and piping system The chiller water piping should be insulated to reduce heat pic...
Страница 3: ...As a result the unit may cycle on low pressure con trol with the possibility of evaporator freezing Westinghouse offers two types of system con trol allowing the units to operate at the winter ambien...
Страница 4: ...2 Dial Set At 55 F Fan Cycling Ambient Thermostat Adjustable FCT 1 FCT 1 Cut In 75 F cut out 72 F FCT 2 FCT 2 Cut In 55 F cut out 52 F FCT 3 FCT 3 Cut In 38 F cut out 35 F Chiller Heater Thermostat N...
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Страница 7: ...s Cl C3 C5 C7 respectively to energize fan contactor C9 when the high side pressure in creases to the cut in setting of FCP1 or FCP2 fan cycling pressure controll Fan Motor M2 and M3 are energized thr...
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Страница 9: ...tacts CIA C3A C5A C7A of contactors Cl C3 C5 C7 respectively to energize fan contactor C9 when the high side pressure in creases to the cut in setting of FCP1 or FCP2 fan cycling pressure control Fan...
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Страница 11: ...m g All lead connections tight h Wiring complies with local codes a Piping complies with applicable codes b External piping independently supported c Chilled water lines insulated a All belts adjusted...
Страница 12: ...ssure switch checked Yes Low pressure freeze control If part winding start time delay is Temperature of air entering condenser Temperature of air leaving condenser Temperature of Chilled Water enterin...
