53D0427
23
FLAME APPEARANCE
Flames from the pilot, front and rear burner should be visually checked as soon as the heater is installed.
In addition, periodically check the flames visually during operation.
CHECKING THE PILOT FLAME
The pilot flame must always be present when the heater is in operation.
It should just touch the top of the ther-
mocouple tip for natural.
See Figures 27 and 29
for correct pilot flame.
If the pilot flame does not touch the thermocouple, then the main burner cannot function reliably.
See Figures 28 and 30
for
incorrect shape of pilot flame.
THERMOSTAT AND MILLI-VOLT
Figure 27 - Correct Appearance of Pilot Flame
Figure 28 - Incorrect Appearance of Pilot Flame
MANUAL CONTROL
Figure 29 - Correct Appearance of Pilot Flame
Figure 30 - Incorrect Appearance of Pilot Flame
Thermocouple
for Natural
Thermocouple
for LP
Thermocouple
for LP
Thermocouple
for Natural
Thermocouple
for Natural
Thermocouple
for Natural
Thermocouple
for LP
Thermocouple
for LP
f i r e - p a r t s . c o m