Aquacal HeatWave SuperQuiet SQ120R, Installation Manual

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MULTI-UNIT COMM FAULT
ISSUE
Slaved heat pump is not receiving a signal from the master heat pump.
RESOLUTION
1. Confirm the master heat pump is operating correctly. If, for example, no power is supplied to the master
heat pump, an error will appear on the slaved heat pumps.
2. Confirm the heat pump is properly connected and configured to a master unit.
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See " Connecting Multiple Heat Pumps (Master / Slaved) " on page 39.
OTA SYSTEM LOCKOUT
ISSUE
A malfunction has occurred that could allow the water temperature to surpass a safe level. An installed
"Over Temperature Alarm" kit has disabled the system.
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See " Over Temperature Alarm Kit " on page 83 for more information.
RESOLUTION
Call for service.
SMART COMM FAULT
ISSUE
Heat Pump is not receiving a signal from an external controller using a smart bus connection point.
RESOLUTION
1. Confirm a smart bus external controller is being used.
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If not, set external controller mode to "none" instead of "SMART".
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See " Configure for Smart Bus Controller " on page 29.
2. Confirm connection points from the external controller to the heat pump are correctly configured.
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See " Connecting Smart Bus Controllers " on page 27.
3. If using a smart bus external controller, confirm the controller is correctly set to send signals to the heat
pump. See manuals or guides provided with the external controller.
VARIABLE DRIVE FAULT
ISSUE
A problem was detected in the variable speed compressor.
RESOLUTION
Deactivate heat pump at power disconnect. Wait for two minutes for the capacitors to discharge.
Then reactivate heat pump's power at disconnect. If error reoccurs, call for service.
WATER TEMP SENSOR SHORT or WATER TEMP SENSOR OPEN
ISSUE
Shorted or open water sensor.
RESOLUTION
A qualified technician should replace the water sensor.
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