Technical information

Document number Document name
TIC C
ONTROL
CHECKING
PUMP R
OTATION
Check the rotation of the pump. Compare pump rotation to
arrow direction on pump. If pump is not turning in proper
direction, disconnect main power to chiller, swap any two
incoming power wires; reapply main power. Check for leaks
inside the chiller cabinet; fix any leaks and dry the inside of
the chiller before proceeding.
If alarm light comes on check the alarm description and fol-
low troubleshooting guide for repair.
Press the on/off and enter buttons simultaneously to turn on
Pump. Press the on/off and enter buttons simultaneously to
turn off pump.
Inspect the compressor. If the compressor is running back-
wards, disconnect the Chiller from the main power supply,
switch any two incoming main power leads, and reapply main
power supply. Wait three minutes. The compressor should
now be running in the proper direction.
Compressor rotatation only needs to be checked if using a 7.5
ton unit or higher. Pump rotation if done correctly by revers-
ing leads at the incoming power will provide proper rotation
for the rest of the three phase motors. You will not be able to
see compressor rotation unless you have refrigeration gauges.
TIC C
ONTROL
CHECKING
THE
SCROLL
C
OMPRESSOR
ONLY MODELS
PCW 7.5, 10, AND
15
AND PCA 7.5, 10
AND
13
Check the water level gauge on the back of the chiller. If the
fluid level is low, follow the steps to add fluid. See Filling the
Chiller, section 3.
TIC C
ONTROL
CHECKING
THE
WATER L
EVEL
GAUGE
NOTE: If correct pump rotation was established, the com-
pressor rotation will be correct. Both the pump and compres-
sor are phased together during manufacture.
INSTALLATION
3-11