American Standard PFWF071A93ABA Installation Manual page 40

ELECTRODE SETTING
IMPORTANT: These dimensions MUST be observed
and verifi ed. (Figure 36)
5/32" or 4 mm
D6003
Figure 36
TURBULATOR ADJUSTMENT (Figure 37)
Set turbulator adjustment for specifi c input required.
A. Loosen NUT (1), and then turn SCREW (2) until
the INDEX MARKER (3) is aligned with the correct
index number as per the burner set up chart.
Figure 37
B. Retighten the retaining nut (1).
NOTE: Model F3 and BF3: Zero and three are scale
indicators only. From left to right, the fi rst line is 3
and the last is 0.
NOTE: Model F3 and BF5: Same as above except
the scale indicators are 0 and 4 as shown in Figure
37.
Model F3, F5, and F10
18-CG03D1-4
40
5/32" to 13/64" or 4 to 5 mm
A
COMBUSTION
CHAMBER
B
Figure 38A
BURNER INSTALLATION
A. Screw the four (4) M8 x 1.25 double end threaded
studs in the four equally spaced threaded holes
located in the boiler door. Screw the short end of the
stud into the boiler door until the stud bottoms. (See
Figures 38B & 39A, item 3)
B. Align the prepunched mounting gasket with
the four (4) threaded studs on the boiler swing door.
Push the gasket onto the studs and seat against the
door. (See Figures 38B & 39A, item 2)
C. The burner may now be attached to the boiler by
inserting the air tube through the burner access hole
(8) and into the appliance, aligning the holes on the
mounting fl ange with the threaded studs on the boil-
er door. Push the burner forward until the mounting
fl ange is seated against the gasket.
D. Secure the burner to the boiler door with the four
(4) locking hex washer head nuts that are included
3
with the boiler ship with hardware.
E. Visually verify proper air tube insertion and align-
2
ment into the boiler door. Dimension "B" should be at
least 1/4". The mounting fl ange is welded to the air
1
tube and the end cone should align at least 1/4" back
from the outer edge of the refractory on the inside of
the boiler door. (See Figures 38A & 39B). The welded
mounting fl ange provides amignment of the air tube.
No further adjustment recorded.
1. Mounting Flange (welded to air tube)
2. Mounting Gasket
3. M8 x 1.25 Double End Threaded Studs, included
with boiler hardware
4. Burner Access Hole
1
4
2 3
Figure 38b