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8. With the unit firing properly, it will be
controlled by the temperature controller
circuitry. The FIRE RATE will be continu-
ously displayed on the front panel bargraph.
DETAIL "A"
Figure 3-6.
Air/Fuel Valve In Ignition Position
CONTROL PANEL OPERATING PROCEDURES
Once the demand for heat has been satisfied,
the Control Box will turn off the gas valve. The
blower relay will be deactivated and the Air/Fuel
Valve will be closed. Standby will be displayed.
3.9. START/STOP LEVELS
The start and stop levels are the fire rate
percentages that start and stop the unit, based
on load.
follows:
Normally, these settings should not require
adjustment
DIAL
(DETAIL "A")
These levels are Factory preset as
•
Start Level:
20%
•
Stop Level:
16%
3-9
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