Pilot Flame Characteristics; Main Burner Flame Characteristics; Maintenance - Empire Heating Systems DV-210-SG Owner's Manual

The pilot flame is blue and goes toward the main burner and
thermopile horizontally. A slight yellow tip on the flame is normal.
The pilot flame must surround and extend approximately 1/4"
(6mm) beyond the thermopile, and must extend beyond the first
row toward the second row of main burner ports.

Main Burner FlaMe cHaracteristics

On the main burner, the burning gas forms a primary flame and a
secondary flame. The primary flame is blue and about 3/16" (5mm)
high. The secondary flame is very pale blue, 3 inches (76mm) to 5
inches (127mm) high. Dust in the combustion air will produce an
orange flame. Do not mistake it for an improper yellow flame.
Steps in Removing Main Burner, Orifice and Valve
1. Disconnect the thermopile and pilot supply line at the pilot
burner.
2. Remove the burner compartment cover 5/16" (8mm) socket
suggested.
3. Remove screw holding left side of burner and lift out.
4. Main burner orifice is now accessible. Use 1/2" (13mm) box end
wrench to remove and apply non-hardening pipe dope sparingly
to orifice threads when replaced.
5. To remove the entire gas valve the nut holding the orifice fitting
to the chamber must be removed and the gas supply to the valve
disconnected. After this, the valve and orifice elbow can be
removed as a unit.
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Pilot FlaMe cHaracteristics

Maintenance

M AI N BU R N ER
PI LO T
FLAM E
Cleaning The Pilot Burner
Cleaning of the pilot may be an annual necessity due to spiders.
After removing the supply tubing and orifice, use a pipe cleaner
or wire to clean the entire internal part of the pilot.
Cleaning the Combustion Chamber and Main Burner
When the main burner and vent cap are removed, all internal areas of
the combustion chamber are accessible for cleaning with a vacuum
hose. The main burner may be cleaned by forcing water into the
ports and the throat of the burner. The burner should be blown dry
or heated to dry all water out before reinstalling.
BU R N ER
C H AN N EL
TH ER M O PI LE
Figure 7
Figure 8
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