02/04
4031-117 Rev I
33
NOVUS DIRECT VENT INSTALLATION INSTRUCTIONS
P. MAINTENANCE INSTRUCTIONS
1. Annual Maintenance
To ensure that your appliance operates in a safe and
efficient manner, your appliance needs to be inspected
at least on an annual basis by a qualified field service
person. Like any gas appliance, it must be tuned up
to ensure optimum performance.
2. Clean the Burner and Control Compart-
ment
Keep the burner and control compartment clean by
brushing and vacuuming at least once a year. Failure
to do this may shorten the fans life. Always turn off the
wall switch and the gas valve before cleaning.
Figure 59 - Standing Pilot Ignition Assembly
Figure 58 - Intermittent Pilot Ignition Assembly
3. Check the Flame Patterns
a.
Check the flame of the burner periodically,
making sure the flames are steady, not lifting or
floating. The flame color should be blue with
yellow tips. The flame sensor (intermittent pilot)
or thermopile/thermocouple (standing pilot)
should be covered with flame from the pilot. See
Figures 58-59
Correct
- Flames should be blue at the base,
yellow-orange at the top.
Not Enough Air
- The flames are tall or sooty
on the ends. Open the air shutter.
Too Much Air
- The flames are all blue, short
and transparent. Close the air shutter.
Note:
After extended periods of burning, film may
build up on the flame sensor (intermittent pilot igni-
tion). The flame sensor should be cleaned annu-
ally with emery cloth to remove this build up.