American Standard PFWF071A93ABA Installation Manual page 60

BURNER MODELS BAYRBF03ABURNA and
BAYRBF05ABURNA:
SETTING THE AIR ADJUSTMENT PLATE
The initial air damper setting is made by turning
screw (2) until the top edge of the air damper (3) is
alligned with the number according to the burner
setup chart.
Further adjustments can be made with the burner
cover in place by removing plastic plug on the top
right hand side of the cover. Turn the screw clockwise
(- indicator) to decrease combustion air.
The fi nal position of the air damper will vary on each
installation. Use instruments to establish the proper
settings for maximum CO
NOTE: Variations in fl ue gas, smoke, CO2 and tem-
perature readings may be experienced when burner
cover is put in place. Therefore, the burner cover
must be in place when making fi nal combustion
instrument readings, to ensure proper test results are
obtained.
BURNER START-UP CYCLE
Thermostat
Motor
Ignition transformer
Valve
Flame
Lock-out lamp
COMBUSTION CHAMBER PRESSURE CHART
BURNER OUTPUT VS CHAMBER PRESSURE CHART
0.5
0.4
0.3
0.2
0.1
0.0 0.50
18-CG03D1-4
60
and smoke reading of zero.
2
Normal
~ 12s
0.75 1.00
2
1
3
Lock-out, due to light-failure
1.25 1.50 1.75
~ 12s ~ 5s
(GPH) BURNER OUTPUT
D5141
Fig. 70