Form I-RA/D 140/235 (Version A), Mfg No. 110318 Rev 4, Page 27
Cleaning
Combustion Chamber, Heat
Exchanger and Flue Pipe
WARNING: Used oils may contain engine-wear
metal compounds and foreign materials. When
burned, these compounds are deposited within or
exhausted from this heater. Therefore, care should
be taken when using, cleaning and maintaining this
equipment.
Whenever any cleaning including the flue pipe and exhaust stack is
done, proper protective equipment, including gloves and a face mask
or respirator, must be worn.
WARNING: Turn off electric power before inspecting
or cleaning the unit. Allow unit to cool.
To determine need for cleaning, inspect the heat exchanger tubes
Inspection
through the access door on the end of the heater opposite the
burner.
• Remove the door panel by lifting upward and outward on the
door handle.
• Using a 1/2” wrench, remove the nuts and washers from the
inner turning box door.
• Pull the door directly off the studs.
• Shine a flashlight into the heat exchanger.
•
If tubes are 25% blocked, leave covers off and proceed
with cleaning.
NOTE:
You cannot adequately make this determination through the
flame observation door. The majority of the settlement of ash accu
-
mulates in the heat exchanger tubes.
View with
the Outer
Access Door
Removed
