Cornelius CH Series Manuel de l'opérateur télécharger pdf (Page 11)

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TROUBLESHOOTING

W ARNING: Disconnect electrical power to the Chiller to prevent personal injury before

attempting any internal maintenance. Only qualified personnel should service 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 PROBABLE CAUSE REMEDY

CHILLER DOES NOT

OPERATE, CONTROL

POWER LIGHT “OFF”

A. No Power To Unit. A. Check Main disconnect fuses,

wiring, and power lead to unit.

B. Defective Control Power

Switch.

B. Replace Switch

C. Defective Control Transformer. C. Replace Transformer

D. Wrong Voltage Supplied to

Unit.

D. Supplied Voltage Must be within

r 10% of nameplate rating.

E. 3--Phase Monitor tripped. E. Check for correct voltage level on

each phase of incoming 3--phase

power. Check for correct phase

rotation.

F. Blown Fuse. F. Replace Fuse (1 Amp).

PUMP DOES NOT OPERATE,

BUT POWER LIGHT IS “ON”.

A. Line to or from Chiller is

restricted.

A. Inspect lines and remove any

obstructions.

B. Internal or external filter is

blocked with debris.

B. Remove and clean strainer, then

replace.

C. Pump Contactor is

defective.

C. Replace Contactor.

D. Damaged pump motor or

impeller .

D. Replace pump motor or impeller.

UNIT RUNS CONTINUOUSLY,

BUT IS NOT COOLING

PROCESS LIQUID ENOUGH.

A. Condenser is restricted. A. Clean condenser.

B. Unit low on refrigerant. B. Call Service.

C. Inefficient compressor. C. Call Service.

D. Unit is undersized for

application.

D. Call REMCOR Chiller Sales Rep.

E. Bypass gas valve stuck open. E. Replace solenoid valve.

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Cornelius CH Series Manuel de l'opérateur Page 11

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