User Guide
9
Figure 8: Pilot Burner Flame, Continuous Ignition 
System, Honeywell Q327 Pilot
Figure 9: Pilot Burner Flame, Intermittent Ignition 
System (EI), Honeywell Q3481 Pilot
E. ScheduleInspectionbyQualiedServiceAgency
(Annual or at Beginning of Heating Season). For 
continued safe operation a qualied service agency 
must provide a more detailed inspection of burners, heat 
exchanger and vent system, and provide maintenance 
as specied in Installation, Operating and Service 
Instructions.
Figure 10: 1 Inch Main Burner Flame
Figure 11: 40mm Main Burner Flame
NOTICE
This boiler contains controls which may cause the boiler to shut down and not restart without service. 
If damage due to frozen pipes is a possibility, the heating system should not be left unattended in cold 
weather; or appropriate safeguards and alarms should be installed on the heating system to prevent 
damage if the boiler is inoperative.
All Independence
®
 Series Repair Parts may be obtained through your local U.S. Boiler wholesale distributor. Should you 
require assistance in locating a U.S. Boiler distributor in your area, or have questions regarding the availability of U.S. Boiler 
products or repair parts, please contact U.S. Boiler Company Customer Service at (717) 481-8400 or Fax (717) 481-8408.










