Vanguard VN12 Owner's Operation And Installation Manual page 14

14
TO SELECT HEATING LEVEL
When running heater, set control knob at LOW or HIGH locked
positions (VN12) or ON position (VN6A). Never set control knob
between locked positions. Poor combustion and higher levels
of carbon monoxide may result.
Do not try to adjust heating levels by using the manual shutoff
valve.
1. Slightly press in control knob and turn counterclockwise
HIGH positions (VN12) or ON position (VN6A).
IMPORTANT: Release downward pressure while turning control knob. Control
knob will lock at the desired position.
Control
Knob
OFF
PILOT
IGN
LOW
OFF
PILOT
IGN
HIGH
OFF
!
WARNING
WARNING ICON G 001
!
CAUTION
WARNING ICON G 001
VN12
Burners
PILOT
IGN
Figure 15 - Burner Patterns
to the LOW or
C-clockwise
Control VN6A
Knob Burner
OFF
ON
OFF