Weil-McLain 550-141-829/1201, Manual

Page: 27 / 32

Burner adjustments for “P” and “A” boilers:
Final burner adjustments must be
made using combustion test
equipment to assure proper operation. Do not fire
boiler without water or sections will overheat.
1. Refer to burner manual for start-up.
2. Allow boiler to heat to design condition.
3. Using combustion test equipment, adjust
burner for:
a. CO
2
between 11% and 12% and 0 smoke.
b. -0.01" to -0.02" W.C. draft in
combustion chamber.
To connect SGO boilers to indirect-fired
water heaters:
Install and wire per water heater manual provided
with water heater.
If boiler already has a tankless heater installed:
•
Remove tankless heater and install cover plate.
OR
• Leave tankless heater installed. Drain coil and
remove piping. Do not plug holes in tankless
heater front plate.
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Appendix