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Temperature Controller
specifications/Installation
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
Differential Adjustment
Sensor
Display
Enclosure
Environment
Dimensions
Installation
1. The temperature sensor for the controller MUST be installed inside the sensor port of
the chillers evaporator housing. Failure to install the sensor into this port may cause an
inaccurate temperature reading and, in the event of low or no water flow, may cause damage
to the chiller. Locate and install the temperature sensor for the controller. Insert sensor
completely into the sensor port. It is not necessary to remove the compression fitting holding
the sensor port in place. Use the supplied piece of cork tape to hold the sensor in place by
wrapping the tape around the entrance to the sensor port. This will isolate the temperature
sensor from ambient heat. Chillers must use controllers supplied by Current-USA, Inc. Use
of any other controller will void the chiller warranty.
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.
-30° F to 220° F
1° F to 30° F
Thermister, 2" L x 0.25" dia., 8 ft. cable
LCD
Nema Rated
-20° F to 140° F, RH 0-95%
175 x 41 x 23 mm (7.9"x1.8"x1")
WWW.CURRENT-USA.COM
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