Removing Control Box Assembly on Guardian Style Heaters
Servicing
Instructions
The heater incorporates a unique service feature which is a
removable control box assembly. The control box is
connected to the heater’s electrical components by means
of 9-pin female/male connector harnesses. Simply
removing several screws and disconnecting the harnesses
allows the service person to remove the entire control box.
This is a major benefit if the control panel is ever damaged
and needs to be completely replaced, or if bio-security is in
effect at a site and the ignition module replacement must be
made by a non-qualified individual who is employed by the
site.
1. Shut off gas supply to heater and disconnect the
heater from its electrical supply.
2. Remove the top two sheet metal screws on each side
of the control box.
3. Loosen the bottom screw on each side of the control
box.
4. Pivot the control box forward, exposing the wire
harness connector socket. Turn the wire harness
connector with 9 female pins socket (located on back
of box) counter-clockwise.
5. Remove the bottom screws from each side of the
control box.
6. To assemble, reverse above procedure.
ATTENTION
■
The wire harness connector sockets are “keyed” so
that they connect together in only one manner.
■
Make sure the socket heads are not cross threaded.
■
Turn the locking collar on the female socket until it
locks into place.
■
Failure to properly connect the male and female wire
harnesses will create poor electrical connections
possibly resulting in heater failures.
August 1999
8.10-1
1
Female
Connector
Male PPin
Socket