Install Instructions

24
7. Install canopy
a. Verify that sealing surfaces between canopy and
heat exchanger are clean.
b. Secure canopy to heat exchanger with carriage
bolts, nuts, and washers.
c. Seal gap between canopy and heat exchanger
with high temperature boiler cement or Dow
Corning Silastic 732 RTV, Dow Corning Silastic
736 RTV, Polybac #500 RTV, or Sil-bond RTV
4500 (Acetoxy). Do not use other adhesives or
sealants.
8. Install Main Burners per Paragraph H. Install Jacket
Vestibule Panel.
H. Clean Main Burners and Firebox.
1. To remove burners for cleaning, changing orices,
or repairs:
a. Disconnect pilot tubing at the gas valve.
b. For Intermittent Ignition (EI), disconnect igniter
cable, sensor cable and ground wire at Ignition
Module.
c. Disconnect Flame Rollout Switch wires.
d. Remove Burner Access Panel.
e. Lift front of burner to clear orice and lift
burner out. Burner which holds pilot can only
be removed by lifting at a 45° angle after burner
adjacent to its right is removed.
2. Brush top of burners with a soft bristle brush. See
Figure 19. Vacuum burners.
3. Check orices. Drilled passageways must be free of
lint or dirt.
4. Vacuum tip of Pilot Burner.
5. Clean rebox by vacuuming. Exercise care not to
damage base insulation.
6. Install burners by reversing procedure used to
remove burners. Burner with pilot assembly must be
in same location as original installation. See Table
12. Burners must be properly located on support
bracket at rear of burner. Front of burner must be
seated on orice and secured with hitch pin clips.
7. Reconnect pilot tubing at the gas valve.
8. For Intermittent Ignition (EI) connect igniter/sensor
cable, and ground wire at Ignition Module.
9. Install Burner Access Panel. Connect Flame Rollout
Switch wires.
Figure 19: Flueway Cleaning
VIII. Service (continued)
Figure 18: Jacket Front Panel and
Vestibule Panel Removal