11 Overview
(PA122) Water Temperature Sensor
The Intermatic Water Sensor (PA122) monitors both pool and spa water
temperature, depending on the position of the diverter valves. Installation is
necessary for the thermostatic control to work.
(178PA28A) Freeze (Air Temperature) Sensor
The freeze/air temperature sensor measures air temperature. When the air
temperature drops below a user-congured setpoint, the freeze sensor turns pumps
ON to circulate water through the pipes to ensure they do not freeze or burst.
(PA122) Solar (Air Temperature) Sensor (Optional)
The solar/air temperature sensor measures air temperature near the solar
collector. It can be congured for either heating or cooling solar applications.