AERCO KC1000 Heater w/Mod-Box Controller - Manual (Page 35)

MAINTENANCE
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5 Prior to reinstalling the ignitor, an anti-seize
compound must be applied to the ignitor
threads.
6
Reinstall the ignitor using the ignitor removal
tool. Do not over tighten the ignitor a slight
snugging up is sufficient. Reinstall the ignitor
contactor (hand tight only) and reconnect the
ignitor cable.
7. Replace the rear cover panels or right side
panel. Replace the condensate cup to drain
tubing.
6.3 FLAME DETECTOR
The flame detector assembly is located in the
body of the burner (see Fig. 6.1). The flame
detector may be HOT. Allow the unit to cool
sufficiently before removing the flame detector.
Figure 6.1
Spark Ignitor and Flame Detector Location
To inspect or replace the flame detector:
1. Put the green ON/OFF button on the control
panel, to the OFF position and disconnect
AC power to the unit.
2. Disconnect the plastic tubing from the
condensate cup to drain and remove the
rear covers from the unit.
3. Disconnect the flame detector lead wire.and
unscrew the flame detector and remove it
from its guide tube.
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,
and reconnect the flame detector lead wire.
6. Replace the rear cover panels or left side
panel. Replace the condensate cup to drain
tubing.
6.4 COMBUSTION CALIBRATION
Combustion settings must be checked at the
intervals shown in Table 1 as part of the
maintenance requirements. Refer to Sections
4.2 and 4.3 for combustion calibration
instructions.
6.5 SAFETY DEVICE TESTING
Systematic and thorough tests of the operating
and safety devices should be performed to
ensure that they are operating as designed.
Certain code requirements, such as ASME
CSD-1, require that these tests be performed on
a scheduled basis. Test schedules must
conform to local jurisdictions. The results of the
tests should be recorded in a log- book. See
Section 6-Safety Device Testing Procedures.
6.6 BTU TRANSMITTER PUMP
LUBRICATION
The BTU Transmitter pump should be lubricated
every six months. There are two oil ports located
on the top of the pump, (see Fig. 6.2). Oil using
4 to 5 drops of SAE20 weight non-detergent oil
at each port. DO NOT OVER OIL.
Figure 6.2
BTU Transmitter Pump Oil Hole Location