Weil-McLain SVF Series 1 Manual page 91

SVF ™
Series 1
COMMERCIAL CONDENSING GAS
Annual startup
d. Avoid dragging the fi ber mesh on any part of the boiler during
removal.
Caution when using a fl at blade screw driver to remove
burner. Bending the burner fl ange could cause a gas/air
leak. Failure to comply could result in severe personal
injury or property damage.
13. Remove ignitor harnesses.
14. Remove two (2) M4 fl ange nuts with a 7mm wrench or socket.
15. Remove ignitor / fl ame sense rod.
16. Clean the burner.
a. Vacuum cleaner method — Vacuum the burner, being careful
not to rub or scrape the fi ber mesh.
Compressed air method — Take precautions, including
close-fi tt ing eye protection, due to possible airborne
debris during use of compressed air.
b. Water fl ush — Water Only! — Rinse the burner down. Allow
time to dry completely.
Note
the orientation of the burner, the weld on the
burner fl ange and side of the burner must be in align-
ment with the ignitor, the burner must be re-installed
in the exact same orientation.
Ensure burner gasket is installed properly on the burner
fl ange, see Figure 81 . Failure to comply could result in
severe personal injury or property damage.
17. Re-install the burner.
a. Carefully insert the burner evenly into place, avoiding fi ber
gasket poking out through the fl ange.
b. Ensure gasket is not bent or folded out of shape!
c. Align the weld marks on burner with the igniter.
18. Remove cover plate stands while holding the cover plate to prevent
it from dropping
19. Lower the cover plate into position.
20. Tighten M10 brass nuts eight (8) standard washers eight (8) and
eight (8) lock washers with a 17mm wrench or socket.
a. Ensure torque of each brass nut with a torque wrench.
(See Figure 90, page 104 for torque sett ing and tightening
sequence)
21. Reconnect air inlet hose to the stainless elbow and the 3 in 1
adapter, tightening the pipe clamps snugly.
22. Reconnect air switch hoses
Check labels on hoses for correct connection. Failure
to comply could result in severe personal injury or
property damage.
23. Install gas pipe, tightening four (4) M5 bolts four (4) with a 4mm
Allen wrench.
24. Install gasket then tighten union of the gas pipe.
a. Ensure fi ber gasket is in place!
25. Turn on gas.
26. Verify no leaks, in all the piping.
27. Reconnect the two (2) wire harnesses to the blower, the harness
to the gas valve, and the harness to the gas pressure switch.
28. Reconnect any other wiring that was disconnected.
Part number 550-100-200/1018
-
FIRED WATER BOILER
(continued)
— Boiler Manual
Figure 80 Combustion chamber access cover removal
IMPORTANT — Align the burner fl ange weld
with the ignitor/fl ame sense rod.
Figure 81
Burner and cover plate gasket
Burner
Burner
29. Test the boiler, making sure the fl ame is acceptable aft er cleaning,
by using Startup Procedure on page 82 .
30. Verify no leaks around the burner /heat exchanger cover plate
to burner seal.
Welded area on
fl ange
Gasket
Gasket
91