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Prime Chiller Temperature Controller
This microprocessor based electronic temperature controller is designed to provide on/off control of heating
and cooling. It is equipped with an easy to read Liquid Crystal Display (LCD) that displays a constant readout
of actual temperature, control settings, relay status and system diagnostics. The simple keypad allows
programming of set point temperature, selectable Fahrenheit/Celsius scale, temperature differential and
cooling/heating mode of operation. Lockout feature prevents tempering from unauthorized personnel.
Controller is housed in water tight Nema type 4X housing rated for outdoor use.
Specifications
Set point Temperature
Range -30° F to 220° F
Differential Adjustment 1° F to 30° F
Sensor Thermister, 2” L x 0.25” dia., 8 ft. cable
Display LCD
Enclosure Nema Rated
Environment -20° F to 140° F, RH 0-95%
Dimensions 175 x 41 x 23 mm (7.9”x1.8”x1”)
Installation
1. The sensor may be placed directly in your water. Place sensor either in the sump or directly
into the tank..
2. Plug the power cord from the chiller into the female outlet on the temperature controller and plug
the controller’s power cord into a 120V GFCI protected wall outlet. Do NOT use an extension
cord between the chiller and controller, or between the controller and wall outlet.
3. Set the controller to the desired temperature and differential (see Programming the Controller.)
A differential of 2 degrees (2° F/C) is recommended with many heat load situations to allow the
chiller to completely cycle and prevent damage to the start-up components and compressor.
Temperature Controller
specifications/Installation