Inspecting Burner - Vanguard MINI-HEARTH VMH2800TPC Owner's Operating & Installation Manual

OPERATING
HEATER
Continued
TO TURN OFF
GAS TO
APPLIANCE
Shutting Off Heater
1. Turn control knob clockwise
to the OFF position.
2. Turn off all electric power to the ap-
pliance if service is to be performed.
Shutting Off Burner Only (pilot
stays lit)
1. Turn control knob clockwise
to the PILOT position.
THERMOSTAT
CONTROL
OPERATION
The thermostatic control used on this
heater differs from standard thermostats.
Standard thermostats simply turn on and
off the burner. The thermostat used on
this heater senses the room temperature.
The thermostat adjusts the amount of gas
flow to the burner. This increases or de-
creases the burner flame height. At times
the room may exceed the set tempera-
ture. If so, the burner will shut off. The
burner will cycle back on when room
temperature drops below the set tem-
perature.
The control knob can be set to any heat
level between HI and LO.
The thermostat sensing bulb mea-
Note:
sures the temperature of air near the
heater cabinet. This may not always agree
with room temperature (depending on
housing construction, installation loca-
tion, room size, open air temperatures,
etc.). Frequent use of your heater will let
you determine your own comfort levels.
103507
MANUAL
LIGHTING
PROCEDURE
1. Remove front panel (see Figure 2,
page 3).
2. Follow steps 1 through 5 under Light-
ing Instructions, page 14.
3. With control knob pressed in, strike
match. Hold match to pilot until pi-
lot lights.
Clockwise
4. Keep control knob pressed in for 30
seconds after lighting pilot. After 30
seconds, release control knob.
5. Replace front panel.
INSPECTING
Clockwise
BURNER
Check pilot flame pattern and burner flame
pattern often.
PILOT FLAME PATTERN
Figure 26 shows a correct pilot flame pat-
tern. Figure 27 shows an incorrect pilot
flame pattern. The incorrect pilot flame is
not touching the thermocouple. This will
cause the thermocouple to cool. When the
thermocouple cools, the heater will shut
down.
Thermocouple
GOOD PILOT
Figure 26 - Correct Pilot Flame Pattern
Thermocouple
BAD PILOT/LP
Figure 27 - Incorrect Pilot Flame Pattern
OWNER'S MANUAL
If pilot flame pattern is incorrect, as
shown in Figure 27
BURNER FLAME PATTERN
Figure 28, page 16 shows a correct burner
flame pattern. Figure 29, page 16 shows an
incorrect burner flame pattern. The incor-
rect burner flame pattern shows yellow tip-
ping of the flame. It also shows the flame
higher than one inch above the log.
Note:
the flame will be yellow for approximately
one hour until the log cures.
Pilot Burner
GRH/OV 009
Pilot Burner
GRH/OV 008
15
• turn heater off (see To Turn Off Gas
to Appliance).
• see Troubleshooting, pages 17
through 19.
When using the heater the first time,
WARNING: If yellow tipping
occurs, your heater could pro-
duce increased levels of carbon
monoxide. If burner flame pat-
tern shows yellow tipping, follow
instructions on page 16.
NOTICE: Do not mistake orange
flames with yellow tipping. Dirt
or other fine particles enter the
heater and burn causing brief
patches of orange flame.
Continued