Schreiber Chillers 2000ACsfmodify - Manual (Page 4)

WATER CHILLER STARTING CHECKLIST
PROPER VOLTAGE
Check the voltage on the chiller to see that it matches your power supply.
CRANK CASE HEATER
Power to the unit should be on for 3 hours prior to full usage to allow the crank case
heater to heat the compressor. PLEASE READ SECTION ON CRANK CASE
HEATER ON PAGE – VERY IMPORTANT
MOTOR ROTATION
Make sure the fan motors and water pumps are running in the correct rotation. If the
water pumps run for more than a short period in the wrong direction, the seal might
back off the shaft. To test if the water pumps are rotating in the correct direction, turn
the pump switch on and off quickly. The compressor switch is used to test the fan
motors rotation.
The compressors to this unit always run in the correct rotation. As a rule – if the water
pump is running in correct direction, you will find fans running correct direction.
SERVICE ACCESS PANEL
The service access panel must be in place when the unit is running. If it is not in place,
the unit will cut off on the high-pressure limit switch, or be inefficient in its capacity.
Also, it is dangerous to install panels while the unit is running. If you leave panels off
tooling, you may have to reset high-pressure switch.
TEMPERATURE CONTROL
The solid-state controller is reading the discharge temperature on the one display
and the return water on the other one.
Keep in mind this is a two stage refrigeration system. Each stage has its own
thermostat, they must be set to the desired temperature.
3 2000AC.doc