Cornelius CH 1502-A, CH Series Cooling Operation, Temperature Indicator/Controller Thermostat

COOLING OPERATION

REMCOR CHXXX SERIES CHILLER

CONTROL

POWER COOLING SAFETY

CONTROL PANEL

RED INDICATOR

GREEN INDICATOR

WHITE INDICATOR/PUSH BUTTON

FIGURE 2. CONTROL PANEL

Temperature Indicator/Controller (Thermostat)

Combines a precise temperature control and easy programmability with a convenient LED temperature readout that indicates system liquid temperature (2_F Differential). To adjust thermostat, see next section.

1.CONTROL POWER SWITCH/LIGHT

Asimple ON/OFF push--button that switches power to the 24 volt control circuit. When the switch is pressed, the white light on the push--button illuminates to indicate that Chiller Control Power is present. Light is no longer illuminated when button is returned to ”OFF”position.

2.COOLING LIGHT

Agreen light that illuminates to indicate that the refrigeration system is operating. This light may cycle on and off in response to the thermostat or in response to HOT GAS BYPASS if the unit is equipped with the hot--gas bypass option.

3.SAFETY LIGHT

Ared light that illuminates to indicate that a problem is present with the chiller. The safety light will illumi- nate under the following conditions:

A.High Refrigerant Pressure

B.Low Refrigerant Pressure

C.Low Reservoir Level (Alarm also sounds)

D.Low Evaporator Temperature

It is important to note that each of these conditions will shut down the ”CH”unit. For additional protection to your equipment, some models are equipped with a LOW FLOW INTERLOCK which terminates power to your equipment in the event that liquid flow from the ”CH”unit drops below 1.25 GPM.

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