OPERATING HEATER
Continued
18
TO SELECT HEATING LEVEL
WARNING
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.
CAUTION
Do not try to adjust heating levels by using the manual shutoff valve.
1. Slightly press in control knob and turn counterclockwise 
C-clockwise
LOW or HIGH positions.
IMPORTANT: Release downward pressure while turning control knob. Control knob will lock at the desired position.
Control
KnobsBurners
OFF 
PILOT
LOW
OFF 
PILOT
HIGH
OFF 
Figure 17 - Burner Patterns
101867