Ota System Lockout; Smart Comm Fault; Source Flow Fault; Source-In Sensor Short Or Source-In Sensor Open - Aquacal WATER SOURCE WS03 Installation Manual

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.
See "Over Temperature Alarm Kit" on page 77 for more information.
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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.
If not, set external controller mode to "none" instead of "SMART".
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2. Confirm connection points from the external controller to the heat pump are correctly configured.
See "Connecting Smart Bus Controllers" on page 30.
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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.

SOURCE FLOW FAULT

ISSUE
If source water flow goes on and off 5 or more times during one call for heating or cooling, the Heat
Pump will deactivate.
RESOLUTION
Confirm source water pump is operating correctly.
SOURCE-IN SENSOR SHORT
ISSUE
Shorted or open water sensor.
RESOLUTION
A qualified technician should replace the water sensor.
SOURCE-OUT SENSOR SHORT
ISSUE
Shorted or open water sensor.
RESOLUTION
A qualified technician should replace the water sensor.
Page - 66
See "Configure for Smart Bus Controller" on page 31.
SOURCE-IN SENSOR OPEN
or
SOURCE-OUT SENSOR OPEN
or