18
OPERATING HEATER
Continued
TO SELECT HEATING LEVEL
WARNING ICONG 001WARNING
When running heater, set control knob at LOW or HIGH locked positions. Never set control knob between locked positions. Poor combustion and higher levels of carbon monoxide may result.
WARNING ICONG 001CAUTION
Do not try to adjust heating levels by using the manual shutoff valve.
1. Slightly press in control knob and turn counterclockwise 
to the LOW or HIGH positions.
IMPORTANT: Release downward pressure while turning control knob. Control knob will lock at the desired position.
Control
KnobBurners
OFF 
PILOT
LOW
OFF 
PILOT
HIGH
OFF 
Figure 18 - Burner Patterns
100846