Operating instructions

26 33D4051
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amesvisuallyduringoperation.
CHECKING THE PILOT FLAME
The pilot ame must always be present when the heater is in operation. It should just touch the top of the ther-
mocouple tip for natural. See Figure 36 and 40 forcorrectpilotame.
Ifthepilotamedoesnottouchthethermocouple,thenthemainburnercannotfunctionreliably.See Figure 39 and 4` for
incorrectshapeofpilotame.
MILLI-VOLT CONTROL
Figure 36 - Correct Appearance of Pilot Flame
Figure 37 - Incorrect Appearance of Pilot Flame
MANUAL AND THERMOSTAT CONTROL
Figure 38 - Correct Appearance of Pilot Flame
Figure 39 - 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