Reznor X - Maintenance Procedures (ContD)

Form I-X, P/N 150491 R7, Page 26
Top Baffle
Support
Screws
B
Bottom
Baffle Support
Brackets
Air Discharge
Direction of Airflow
Screw C
Right
Left
Screws A
Screw C
Airflow
Baffles
FIGURE 25 - Clean Heat
Exchanger Air Bafes
When cleaning outer heat
exchanger surface, remove the
air bafes in the heat exchanger
individually.
Remove Screws "A" and slide
each bafe out. Clean all bafes
and re-install.
Inner Surface - The inner surfaces (combustion air side) of the heat exchanger can
be reached for cleaning with the burner rack removed. (See Paragraph 10.2.3.) An
air hose, an 18-24" long, 1/2" diameter furnace brush (or heavy wire with steel wool
securely attached), a ashlight, and a mirror are needed.
The furnace has "V" shaped bafes in the top of each heat exchanger tube. Follow the
instructions in FIGURE 30 to remove the "V" bafes when cleaning the inner surfaces
of the heat exchanger. NOTE: Furnaces manufactured prior to 3/95 may not have heat
exchanger "V" bafes.
Clean the inner surfaces of the heat exchanger from beneath using the brush to "scrub"
the tube walls to remove any accumulated dust, rust and/or soot. Clean the "V" tubes
and re-assemble the heat exchanger and the furnace.
Check the furnace for proper operation.
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Instructions to Remove Heat Exchanger
"V" Bafes:
1) Remove the screws (the number varies
depending on unit size) along the bottom
of the front bafe and the three on each
end Slide the front bafe out of the
furnace.
2) Remove the screws that attach the tube
bafe hold-down plate to the rear ue
bafe.
3) Pull the "V" bafes out of the heat
exchanger.
FIGURE 26 - Remove "V" Bafes to Clean
Inner Surface of Heat Exchanger Tubes
10.0 Maintenance
and Service
(cont'd)
10.2 Maintenance Procedures (cont'd)
10.2.4 Cleaning the Heat Exchanger (cont'd)