Boiler Manual
Part Number 550-110-593/1099 31

Start the boiler

Start-up — if boiler doesn’t start . . .6c

Check for:

4. Gas not turned on at meter or boiler?
5. Incoming gas pressure less than:
5" w.c. for natural gas? 11" w.c. for propane gas?
6. If none of the above corrects the problem, refer to
Troubleshooting, section 11, page 49 of this manual.
• Follow the Lighting/Operating Instructions from
Section 8 or 9 to start the boiler. Remove boiler
jacket door and note the gas valve manufacturer and
model number. Use only the lighting/operating
instruction which applies to this gas valve (see Table
1. Check system piping for leaks. If found, shut down
boiler and repair immediately.
If you discover evidence of any gas leak, shut down the
boiler at once. Find the leak source with bubble test and
repair immediately. Do not start boiler again until
corrected. Failure to comply could result in severe
personal injury, death or substantial property damage.
Do not use petroleum-based cleaning or sealing
compounds in boiler system. Severe damage to boiler
will occur, resulting in substantial property damage.
Eliminate all system leaks. Continual fresh makeup
water will reduce boiler life. Minerals can build up in
sections, reducing heat transfer, overheating cast iron,
and causing section failure.
1. Loose connections, blown fuse or service switch off?
2. High limit switch set below boiler water tempera-
ture?
3. Thermostat set below room temperature?
Start-up — operate boiler continued6b
2. Vent air from system using manual vents. Air in
the system will interfere with circulation and cause
heat distribution problems and noise.
3. Inspect vent system thoroughly for signs of
deterioration from corrosion, physical damage or
sagging. Verify that masonry chimney liners are in
good condition, with no obstructions, and there are
no openings into the chimney.
4. Check around the boiler for gas odor following the
procedure of section 6a, page 28 of this manual.
5. Verify operationper section 6d, page 32. Perform
check-out procedure in section 7, page 33, and fill
in the Installation and service certificate.
5, page 30). (The lighting instruction label on the
boiler provides the same information.)
• See Section 6c, below, if boiler fails to start.

Check system and boiler