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5. Open Air Shutter (#1) two increments. Example: If Air Shutter was set at
2, move it to 4.
6. Slowly trigger the gun on and off. This will cause the burner to turn on and
off. Look for a smoke puff when the burner ignites.
7. Repeat steps 5 and 6 until a smoke puff is noticed. Record the Air Shutter
Setting.
8. The difference between the recorded settings in steps 4 and 7 is the
combustion window. Set the dial 1/2 way between these settings.
NOTE: If you are unable to detect a setting on either step 3 or 7, more
or less air may be needed to achieve a proper combustion win-
dow. Loosen the Bolt (#4 at left) and open the Air Band (#2) in 1/4"
increments. Repeat steps 3-8 until proper combustion window is
achieved.
PREVENTIVE OPERATOR MAINTENANCE CHART
PROCEDURE
Fuel inspection
Water leak inspection
Quick-connect and hose inspection
DEALER MAINTENANCE CHART
PROCEDURE
Inspect fuel pump internal filter
Check burner electrodes
Burner inspection
Exhaust ventilation inspection
*Descale coil
*Scale buildup will vary with mineral content in the water and amount off
usage. Descaling can range from monthly to yearly maintenance.
HOM-SERIES Hot Water Heater module Operator's Manual
MAINTENANCE
DAILY
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12 MONTHS
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15
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