Cold Shot Chillers ACWC-180-EM-DR-LT-0-5, Инструкции по установке, эксплуатации и обслуживанию

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7. Motor defective. 7. Check motor winding for open or short. Replace
motor/pump, if necessary.
VOLTAGE IMBALANCE
1. Voltage Imbalance over 2% - Incoming Power
- (Check Voltage at front and backside of each
contactor during operation.)
1. Main Incoming Voltage –
- A voltage imbalance may be an indication of loose
wires/cable connections or faulty contactors.
- Another issue may be the components
themselves. Troubleshoot if needed.
- If the supply voltage phase imbalance is still more
than 2%, issue may require contacting local electric
utility company.
2. Voltage Imbalance over 2% - Load Power
- (Check Voltage at front and backside of each
contactor during operation.)
2. Main Incoming Voltage –
- A voltage imbalance may be an indication of loose
wires/cable connections or faulty contactors.
- Another issue may be the components
themselves. Troubleshoot if needed.
- If the supply
TEMPERATURE CONTROLLER ERROR
1. Temperature indication not accurate. 1. Verify temperature sensor is in good condition and
mounted properly.
- Adjust the offset (Typically it is only adjusted a
few degrees. If the offset must be adjusted more
than 3 degrees, determine potential issues.)
2. Temperature indication or sensor error on
controller.
2. FOR TEST PURPOSES ONLY!
- Turn system off. Disconnect power.
- Disconnect the thermocouple wires from
controller.
- Connect a short length of copper wire
(Jumper) between the two contacts on the
controller where the thermocouple was
connected.
- Reconnect power. Turn system on.
- If the controller “actual” is close in range to
the ambient temperature of the controller,
then the thermocouple is bad. – Replace the
thermocouple. (remove the jumper wire)
- If the controller “actual” is not in range to the
ambient temperature of the controller, then
the thermocouple may be good, the controller
may have internal issues. – Replace the
controller or thermocouple input device.
MNL_Standard-Basic_ACWC-24to240-E-(IN PROGRESS)_(0815).docx
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