MAINTENANCE
7-2
bushing over the contactor and reconnect
the igniter cable.
8. Reinstall the side and top panels on the unit.
Table 7-1 - Maintenance Schedule
PARAGRAPH
ITEM
6 Mos.
12 Mos.
24 Mos.
Labor
Time
7.2
Spark Igniter
(GP-122435-S)
*Inspect
Replace
15 mins.
7.3
Flame Detector
(123970)
*Inspect
Replace
15 mins.
7.4
Combustion
Adj.
*Check
Check
1 hr.
7.5
Testing of
Safety Devices
See CSD-1
Chart in
Appendix
20 mins.
7.6
Burner
Inspect
2 hrs.
7.7
Condensate
Drain Trap
Inspect
Inspect &
Clean
Inspect &
clean if
necessary
1 hr.
* Only performed after initial 6 month period after initial startup.
7.3 FLAME DETECTOR
The flame detector (part no. 123970) is located
in the body of the burner (see Fig. 7.1). The
flame detector may be HOT. Allow the unit to
cool sufficiently before removing the flame
detector.
To inspect or replace the flame detector:
1. Set the
ON/OFF
switch on the control panel,
to the
OFF
position. Disconnect AC power
from the unit.
2. Remove the side and top panels from the
unit.
3. Disconnect the flame detector lead wire.
Unscrew the flame detector and remove it.
(See Fig 7.2)
4. Inspect the detector thoroughly. If eroded,
the detector should be replaced. Otherwise
clean the detector with a fine emery cloth.
5. Reinstall the flame detector hand tight only.
6. Reconnect the flame detector lead wire.
7. Reinstall the side and top panels on the unit.
7.4 COMBUSTION CALIBRATION
Combustion settings must be checked at the
intervals shown in Table 7-1 as part of the
maintenance requirements. Refer to Chapter 4
for combustion calibration instructions.
SPARK PLUG
IGNITER CONTACTOR
FLAME DETECTOR
IGNITER BUSHING
Figure 7.2
Spark Igniter and Flame Detector Location
Cut-Away View
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