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CH Series Chiller Operator's & Installation Manual
!
WARNING:
Disconnect electrical power to the chiller to prevent personal injury before attempting any internal maintenance. Only
qualified personnel should service the internal components or electrical wiring.
If repairs to the chiller must be made, disconnect electrical power to the unit, then shut off the water source.
Trouble
Chiller does not operate, Power Light
"OFF"
Pump does not Operate but Power
Light is "ON"
Unit runs continuously, but is not cool-
ing process water enough.
NOTE: When servicing a Cornelius chiller, it is important to note all information provided on the
DATA PLATE located on the upper rear of the unit. If technical assistance is needed, the Cor-
nelius Service Technician will need this information along with any description of the prob-
lem(s) you are encountering. The serial no. and other information will also be required when
ordering replacement parts and any other Warranty Claims.
Publication Number: 620914801
TROUBLESHOOTING
Table 3:
Problem Cause
A.
No Power to unit
B.
Defective Control Power Switch
C. Defective Control Transformer
D.
Wrong Voltage supplied to Unit
A.
Line to or from chiller is restricted.
B.
Internal or external filter is blocked
with debris.
C. Pump contactor is defective
D.
Damaged pump motor or impeller.
A.
Condenser is restricted.
B.
Unit low on refrigerant.
C. Inefficient compressor.
D.
Unit is undersized for application.
- 10 -
Remedy
A.
Check main disconnect fuses, wir-
ing and power lead to unit.
B.
Replace Switch
C. Replace Transformer
D.
Supplied Voltage MUST be within +/
- 10% of nameplate rating
A.
Inspect lines and remove any
obstructions.
B.
Remove and clean strainer, then
replace.
C. Replace contactor
D.
Replace pump motor or impeller.
A.
Clean condenser.
B.
Call Service.
C. Call Service.
D.
Call Cornelius Chiller Sales Rep.
© 2004-2015, Cornelius Inc.
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