Challenger Blower
Replacement Kit
4
6. With the gas orifice in place, reconnect the gas pipe
brass nut to the gas valve. See Fig. 2.
7. If previously removed, reinstall the vent pipe.
WARNING
!
When reassembling the vent pipe, ensure all gaskets
are in place and correctly installed. Ensure all associat-
ed internal joints are complete, tight and secure. Fail-
ure to comply can result in flue gas leakage resulting
in severe personal injury.
8. Reattach the wire harness plugs to the blower mo-
tor.
9. Replace the front jacket panel and secure with the
two Phillips head mounting screws at the control
panel.
10. Open the main shutoff valve to the gas supply pip-
ing. Before placing the Challenger back into service
check and test all gas piping connections for leaks.
Repair leaks if found.
WARNING
!
If any gas leaks are found or suspected, shut down the
appliance immediately. Use a gas detection device or
bubble test to locate the source of the gas leak and
repair at once. Do not operate the appliance until the
leak is corrected. Failure to comply with this proce-
dure can result in substantial property damage, seri-
ous injury, or death.
11. Turn on power at the main service switch and re-
turn to service.
12. Perform a combustion analysis by measuring CO2
or O2 and CO during both low and high firing rates.
The combustion readings must be within the range
listed in Table 1. The CO level must not exceed 100
ppm for natural gas and 150 ppm for propane gas
when combustion is correct.
Perform the following procedure to manually place
the burner into high fire. Press both the “
” and
“+” buttons simultaneously once until the operating
display shows “h” or twice until the operating dis-
play shows “H” for high fire.
Perform the following procedure to manually place
the burner into low fire. Press both the “
” and
“-” buttons simultaneously until operating display
shows “L”.
Table 1: Acceptable Combustion levels
Combustion Levels Natural Gas
Propane Gas
H
igh F
ire
DOOR OFF*
CO2 Range
9% - 10.1%
10.5% - 11.1%
CO2 Target
9.0%
10.8%
O2 Range
3.0% - 5%
4.1% - 5.0%
O2 Target
5.0%
4.5%
Lo
w F
ire
CO2 Range
0% - 0.4% <H.F.
9%
0% - 0.4% <H.F.
10.5% min.
O2 Range
0% - 0.6% > H.F.
5.0% max.
0% - 0.6% > H.F.
5.0% max.
CO Max.
100 ppm
150 ppm
* Door On can raise the maximum allowable CO2 by 0.4
or lower the minimum O2 by 0.6
WARNING
!
If the combustion levels are not within the range giv-
en in Table 1, shut the appliance down and contact Tri-
angle Tube Technical Support. Failure to comply with
this requirement can result in substantial property
damage, serious injury, or death.
2019-05 Challenger Blower Replacement Instructions
Revised 02/27/2019
