Form I-RA/D 350/500, Page 28
Maintenance
Continued
Cleaning Model
RA/RAD 350
Model RA/RAD 350 -
Removing Soot and
Ash from the Combustion Chamber, Heat
Exchanger and Flue Pipe
1. On the burner end of the heater, remove the access panel un
-
derneath the service tray.
• Pull the door panel straight out from the heater.
NOTE:
Size 350 heaters manufactured prior to October
2004 had single-piece doors the width of the cabinet.
On Size 350 heaters with single-piece outer and in-
ner doors, it is necessary to disconnect the flue pipe
to remove the door panels. Turn the latches 1/4 turn to
remove outer door panel.
2. Remove the inner access panel (exhaust cover).
• Using a 1/2” wrench, remove the nuts and
washers from the inner exhaust cover.
• Pull the cover directly off the studs.
3. Clean the combustion chamber and heat
exchanger tubes. (Refer to the illustration on
page 27.) Clean the flue pipe.
• Use a stiff brush.
• Remove ash from both ends with a shop vacuum.
WARNING: The ash that is removed from
this heater may contain heavy metal
compounds that are environmentally
undesirable and should be disposed of in
a conscientious manner.
4. Check Gaskets
• Check all access panel gaskets. If replacement
gasket(s) are needed, use gasket identical to the
original equipment.
5. Re-assemble
Summary of Contents for RA 350
Page 48: ...Form I RA D 350 500 Page 48 Wiring Diagram 147351 for Models RA RAD 350 Appendix...
Page 49: ...Form I RA D 350 500 P N 131090R12 Page 49...
Page 51: ...Form I RA D 350 500 P N 131090R12 Page 51...
Page 53: ...Form I RA D 350 500 P N 131090R12 Page 53...
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