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3. CONTROL POWER LIGHT- A white light that indicates that Chiller control power is present.
4. COOLING LIGHT- A green light that indicates refrigeration system operation. This light cycles on and off in
response to the thermostat.
5. HIGH PRESSURE ALARM LIGHT- A red light that indicates high refrigeration pressure.
6. LOW PRESSURE ALARM LIGHT- A red light that indicates low refrigeration pressure.
7. LOW TEMPERATURE ALARM LIGHT- A red light that indicates and abnormally low system fluid temper-
ature.
8. PUMP POWER SWITCH (OPTIONAL)- A simple (ON/OFF) switch that switches power to the Chiller
pump. This switch must be “ON” for the Chiller to operate.
9. PUMP POWER LIGHT (OPTIONAL)- A white light that indicates that the Chiller pump power is present.
10. LOW FLOW/HIGH TEMPERATURE INTERLOCK (OPTIONAL)- Contacts are energized when abnormally
low fluid flow or an abnormally high fluid water temperature is sensed by Chiller controls.
11. LOW LEVEL AUDIBLE ALARM (OPTIONAL)- An audible alarm that indicates an unsafe reservoir level.