COMBAT
®
CTU UNIT HEATERS INSTALLATION OPERATION AND SER VICE MANUAL
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Replace in reverse order. Verify that the gas flow
direction of the valve is correct. Use a minimum
amount of gas seal on the thread joint. Re-use the
"O" ring seal in the ou tlet flange where fitted. Check
that all the joints are leak free. Reset gas valve.
See
Page 27, Section 12.4.2.
IT IS IMPORTANT THAT ONLY THE CORRECT
GAS VALVES SPECIFIED FOR EACH MODEL
TYPE ARE USED WHEN REPLACING THESE
CONTROLS.
17.2 Burner Compartment
Remove flexible
air duct from spigot
Remove
access plate
Remove screws and
pull off burner cover
Viewing port
for flame probe
Viewing port
for ignition electrode
Flame probe
Burner
compartment
cover
Rubber Seal
Ignition electrode
The burner compartment is a sealed
compartment. Following any work,
re-seal the compartment with the gas
pipe rubber seal fully in place and all
screws fitted and tight.