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W
F
S
ATER
LOW
TART
Chiller with Pump
It is important to check the pump rotation on the three phase units. Remove the lower side panel to expose the pump.
Turn the pump power switch to the "ON" position for a few seconds. Observe the motor shaft to ensure that it is turning
in the direction indicated by the arrow located on the pump housing. If the rotation is incorrect, reverse two of the three
incoming power supply leads at the terminal strip. After changing the leads, check the pump rotation.
!
WARNING:
Running the pump in reverse for more than a few seconds results in permanent pump damage.
After ensuring that the system piping is free from obstruction and that all valves are open, turn the pump power switch
to the "ON" position. The pump power indicator should illuminate, indicating that the pump is operating.
All Chillers with pumps are provided with a pressure regulating valve on the pump discharge. This valve is preset at
the factory to ensure that system pressure does not exceed the capabilities of the pump motor and/or piping. If this
valve requires adjustment, please contact the factory for proper setting procedure and pressures.
A flow meter and throttling valve can be added in the chiller inlet line in order to monitor and/or adjust the flow rate
through the Chiller.
Once the flow has been established, the thermostat can be adjusted to the desired set–point.
Chiller without Pump
A flow meter and throttling valve can be added in the Chiller inlet line in order to monitor and/or adjust the flow rate
through the Chiller.
Once the flow has been established, the thermostat can be adjusted to the desired set–point. See thermostat
adjustment.
S
T
TANDARD
HEROSTAT
The following procedure should be followed to adjust the Eliwell IC902 thermostat temperature setting:
1. To set the "SET POINT", press and release the "SET" button. "SET" displays.
2. Press the "SET" button again, the current "SET POINT" is displayed. Press the UP or DOWN button to
change the "SET POINT" to the desired temperature.
3. Press the "fnc" button twice to exit the program. The current liquid temperature is displayed.
The thermostat has a range that is preset at the factory. The range is 40
outside of this range is required, please contact the Technical Service Department.
© 2006-2011, IMI Cornelius Inc.
CH5000 & CH7500 Chiller Operator's & Installation Manual
START UP
-U
P
E
IC902
LIWELL
Figure 5. IC902 Eliwell Thermostat
- 7 -
o
o
o
F (4.4
C) to 100
F (37.8
Publication Number: 91961OPR
o
C). If operation
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