Instructions / Assembly

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POWERBLANKET® THERMOSTATIC
CONTROLLER INSTRUCTIONS
Thank you for purchasing a Powerblanket® GHT2002J Thermostatic Controller.
Please read and understand these instructions before continuing. Please retain these instructions
and the A421 Series instruction set (Johnson Controls use A421AEC within) for future reference.
GHT2002J Thermostatic Controller. From left to right, please note the input power supply cord
(~6’ long) with plug, gray temperature sensor lead (~6’ long) with steel encased temperature
sensor/probe at the end, hanger kit installed and the output 2’ long cord with connector (a k a
receptacle).
The GHT2002J controller plugs into your GFCI protected power supply (wall, etc.). The
controller will power up when you plug in its power supply cord.
Your Powerblanket® heating blanket plugs into the output receptacle cord of the GHT2002J.
The controller turns on and off the power to the receptacle depending upon the temperature of
the probe/sensor versus the OFF and ON temperatures you have programmed into the controller
(more information below).