Dyna-Glo BF10PTDG/PMDG Manual page 21

OPERATION
THERMOSTATIC CONTROL OPERATION (SELECT MODELS)
The thermostat used on this heater senses the room tempera-
ture. At times the room may exceed the set temperature. If so,
the burner will shut off. The burner will cycle back on when
room temperature drops below the set temperature. The control
knob can be set to any comfort level between "HIGH" (5) and
"LOW"(1) (See Fig. 25).
MANUAL CONTROL OPERATION
Manual valves remain burning in the desired setting until manu-
ally turned to OFF "
INSPECTING BURNERS
Check pilot flame pattern daily when in use and at least yearly by a qualified service agency.
PILOT FLAME PATTERN
Fig. 26 shows a correct pilot flame pattern. Fig. 27 shows an incorrect pilot flame pattern. The incor-
rect pilot flame is not touching the thermocouple. This will cause the thermocouple to cool, which
shuts the heater off. If pilot flame pattern is incorrect:
• turn heater off (see "To Turn Off Gas to Appliance" on page 19)
• see Troubleshooting pages 23 through 26.
Fig. 26 - Correct Pilot Flame Pattern
"(See Fig. 25).
Thermostatic
Fig. 27 - Incorrect Pilot Flame Pattern
20
Manual
Fig. 25 - Control
Knob Position