American Standard PFWF071A93ABA Installation Manual page 59

BURNER MODELS BAYRAF03ABURNA, BAYRA-
F05ABURNA, BAYRAF10ABURNA:
SETTING THE AIR ADJUSTMENT PLATE
The electronic air shutter assembly (1) is operated
on a 120v 60Hz. motor, and the burner motor will
not operate until the air shutter is in its fully open
position.
Set the air plate (4) setting according to OEM setup
information or by following the settings listed in
this manual. To adjust the air plate to the desired
set point indicator (2), loosen the center air shutter
assembly screw (5) and loosen the side air plate screw
(3), move air plate (4) by using the air gate adjust
arm. After adjustments are made retighten screws
(3) & (5).
The fi nal position of the air adjustment plate will
vary on each installation. Use proper combustion test
instruments to establish the proper setting of the air
plate to acheive safe and effi cient results.
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.
Thermostat
Motor
Ignition transformer
Valve
Flame
Lock-out lamp
~ 3s
Normal
~ 12s
2
3
Lock-out, due to light-failure
~ 3s ~ 12s
1
5
4
Fig. 69
~ 5s
18-CG03D1-4
59