20015900
11
GB
COMBUSTION CHAMBER PRESSURE CHART
The firing rate was obtained considering a room temperature of 68 °F and an atmospheric pressure of
394 “wc (approx. 0 ft above sea level), with the combustion head adjusted.
BURNER START-UP CYCLE
BURNER OUTPUT VS CHAMBER PRESSURE CHART
D7525
(GPH) BURNER OUTPUT
CHAMBER PRESSURE
(INCHES WC)
0.0 0.50 0.75 1.00 1.25 1.50 1.75
0.2
0.3
0.4
0.5
0.1
Normal Lock-out, due to light-failure
Thermostat
Motor
Ignition transformer
Valve
Flame
Lock-out lamp
~ 12sec. ~ 12sec. ~ 5sec.
D7526
2min.
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