PFG Series 7
Inspect venting system:
1.Check venting system at least once a month during heating season. With boiler in operation (at least 5 minutes), hold a candle or match below lower edge of draft hood “skirt.” If flame is undisturbed or leans under skirt, vent system is functioning properly. If flame is extinguished, flickers, or reduced while flame is pushed out side skirt, the vent system must be checked for obstructions or other causes of improper venting.
2.Inspect all parts of venting systems for deterioration from corrosion, physical damage, sagging, etc. Correct all conditions found.
3.Verify damper, if used, is open when burner ignites. For additional information, see Control Supplement.
To clean boiler heating surfaces
The boiler contains ceramic fiber and fiberglass materials. Use care when handling these materials per instructions on page 15 of this manual. Failure to comply could result in severe personal injury.
1.Follow
2.Remove breeching, draft hood and damper (when used).
Remove jacket top panel. Turn back jacket insulation to expose col- lector hood.
3.Remove collector hood. Clean excess boiler cement from collector hood and cast iron sections.
4.Remove radiation plates.
5.Remove burners from base of boiler. Follow“To clean main burners,” page 18, to thoroughly clean burners.
6.Place newspaper in base of the boiler to collect soot that will fall.
7.With a wire flue brush, clean between the sections.
8.Remove newspaper and soot.Vacuum or brush base and surrounding area to remove soot.
9.Reinstall radiation plates.
10.Reinstall collector hood. Seal with boiler cement.
11.Reinstall insulation and jacket panel.
12.Reinstall burners.
When reinstalling, burner tubes must be seated in their locating slots with the openings facing up. Gas orifices must inject down center of burner. Failure to properly seat burner will result in severe personal injury, death or substantial property damage.
13.Reinstall draft hood, damper (when used), and breeching.
14.Follow “To Place in Operation” procedure.
Excessive sooting indicates improper combustion of the gas. Call a qualified service agency or your local gas utility to check for proper combustion and make any necessary adjustments.
To clean main burners:
1. Vacuum or brush burners to remove dust and lint.
When reinstalling, burner tubes must be seated in their locating slots with the openings facing up. Gas orifices must inject down center of burner. Failure to properly seat burner will result in severe personal injury, death or substantial property damage.
Annual shut-down procedure:
1.Follow lighting/operating instructions label on boiler.
2.DO NOT drain the system unless exposure to freezing temperatures will occur. If antifreeze is used with system, do not drain.
3.If the complete boiler and piping system must be drained to avoid freezing, then a means must be provided for draining water from BOTH ends of the boiler at or below the level of the return tapping. A boiler drain cock is pro- vided by
To replace a boiler section
If replacing any section (see Figure 9):
•Approved RTV silicone sealant (Dow Corning 700 or 732 or G.E. 808 or 108) must be used to seal between sections.
•Place ball bearings in the holes in the locator holes on the sides of the sections to ensure section alignment and reliable placement.
Failure to use PFG Series 7 intermediates or to properly seal sections per Figure 9 can cause flue gas spillage or carbon monoxide emissions, resulting in severe personal injury, death or substantial property damage.
Figure 9 Section assembly
18 | Part Number |