Heat Controller Water Source Heat Pump Water Temperature Alarming, Fire Alarm, Section, 1-14

Section 1 WattMaster WHP

Water Temperature Alarming

The controlling water temperature is monitored to prevent it from exceeding both a user defined High and Low Alarm Limit. If either limit is exceeded for a user defined length of time, an alarm is generated and the compressor output is de-activated. If the high limit is exceeded, the heat addition outputs are de-activated and if the low limit is exceeded, the heat rejection outputs are de-activated. The alarming and shutdown only pertains to the controlling water temperature. This does not affect the pump operation.

If a external manual alarm reset button is connected between ground and input #5, All outputs are turned off and ALL timers are reset. This forces the loop controller to stage off. This reset WILL shut down the pumps and force them to restart!

Fire Alarm

If the Fire Alarm is activated on input #1 of the Analog Input Expansion Board (Contact OPENS for Alarm!) then ALL outputs and timers are reset and held off for the duration of the Fire Alarm signal.

If the Fire Alarm is not required, input #1 of the Analog Input Expansion Board must have a shorting wire to ground to allow the equipment to operate.

1-14 Design Guide