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Thermostat Kit
Installation
Instructions
Refer to instructions below when connecting a thermostat to
units with a Master Control Panel. Follow the instructions on
page 2.6-2 to install the thermostat kit with a Guardian style
control panel.
Master CControl PPanel
1. Disconnect heater from electrical supply and shut off
gas to inlet of heater.
2. Open the Master Control Panel on the heater and
remove the plastic hole plug located in the bottom of the
panel.
3. Loosen the screws on the terminal strip that hold the
jumper in place. Remove the jumper.
4. Using a wire cutter, cut off the 3/16 in. insulated
terminal and the 1/4 in. uninsulated terminal on the
black and white leads of the thermostat cord set. Strip
back the leads 1/4 in. to expose the stranded
conductors.
5. Run this end of the cord up through the hole in bottom
of panel from which you removed the plastic hole plug.
Using a pliers or other suitable tool, secure the cord in
place within the hole with the small strain relief that is
included with the cord. Install this strain relief to
prevent abrasion and possible cutting of the cord’s
insulation against the edge of the hole.
6. Connect the exposed conductors of the black and white
leads of the thermostat cord to the terminals previously
occupied by the jumper.
7. Reconnect heater to electrical supply. Open gas valves
to inlet of heater. Turn up the thermostat and test for
proper operation. The heater will start. Set the
thermostat to desired temperature after testing. Close
and latch the control panel door.
August 1999
2.9-1
1
Strain R
Relief
Plug
Jumper