Empire Comfort Systems SR-18-3 User Manual

Page 14

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16942-3-0506

Page 14

SR-6 Main Burner Flame (Figure 15)

The main burner flame will have a red-orange glow over the sur-

face 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 out-

side 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, SR-18 and SR-30 Main Burner Flame (Figure 16)

The main burner flame will have a red-orange glow over the sur-

face 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 accept-

able. 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 assem-

bly.

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 burn-

er 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.

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