Table of Contents
Advertisement
MAIN BURNER FLAME CHARACTERISTICS
SR-6 Main Burner Flame (Figure 13)
The main burner flame will have a red-orange glow over the surface
of the ceramic plaque. The red-orange glow on the surface of the
ceramic plaque will have a pattern in the shape of a number 1. The
perimeter of the ceramic plaque [approximately the outside 1/4"
(6mm)] will not glow. A few small, hairline cracks may form over
the surface of the ceramic plaques or at the edges of the ceramic
plaques where they have been cemented into position on the burner
assembly frame. These small, hairline cracks will not affect the
operation or performance of the ceramic plaques. Only, when large
cracks develop, with blue flames escaping from the large cracks,
should you contact your QUALIFIED SERVICE PERSON.
SR-10 and SR-18 Main Burner Flame (Figure14)
The main burner flame will have a red-orange glow over the surface
of the ceramic plaques. A few small, hairline cracks may form over
the surface of the ceramic plaques or at the edges of the ceramic
plaques where they have been cemented into position on the burner
assembly frame. These small, hairline cracks will not affect the
operation or performance of the ceramic plaques. Only, when large
cracks develop, with blue flames escaping from the large cracks,
should you contact your QUALIFIED SERVICE PERSON.
A red-orange haze that is visible on the ceramic plaques is acceptable.
A blue flame that rolls out at the top of the ceramic plaques indicates
an accumulation of dust, lint or spider webs inside the casing assembly
and main burner assembly. Use the following procedure to inspect
the casing assembly and main burner assembly.
1. Turn OFF gas supply to the heater.
2. Turn OFF electric supply to the heater if optional blower is
installed in heater.
3. Remove lower louver from casing assembly ( 2 screws).
4. Remove reflector from casing assembly (2 screws).
5. Inspect interior of casing assembly for accumulation of dust, lint
or spider webs. If necessary, clean interior of casing assembly
with a vacuum cleaner or apply air pressure. Do not damage any
components within casing assembly when you are cleaning.
6. Remove pilot bracket from main burner assembly (2 screws).
7. Pivot pilot bracket with attached pilot away from main burner
assembly (do not damage pilot tubing).
8. Inspect main burner orifice(s) through the rectangular opening(s)
in the venturi (throat) of the main burner(s). Dust, lint and spider
webs can accumulate on top of the main burner orifice(s). If
necessary, clean main burner orifice(s) with a vacuum cleaner or
apply air pressure. To thoroughly clean the main burner orifice(s)
proceed to Step 9.
9. Disconnect supply tubing from orifice holder(s).
10. Remove orifice holder from venturi of main burner assembly (1
screw for each orifice holder).
11. Remove main burner orifice from orifice holder.
12. Apply air pressure through main burner orifice and orifice holder
to remove dust, lint or spider webs.
13. Apply air pressure into ceramic plaque(s) to remove dust, lint or
spider webs.
14. As parts are being replaced in reverse order, check for gas leaks
at all gas connections before lower louver is replaced onto casing
assembly.
Page 14
SR-6
Figure 13
SR-18 Shown
Figure 14
16010-10-0314
Advertisement
Table of Contents
