Vanguard VN1800C Owner's Operation And Installation Manual page 23

OPERATING
HEATER
Models VN1800C
and VN3000C
Continued
100750
TO SELECT HEATING LEVEL
When running heater, set control knob at LOW, MEDIUM, or
HIGH locked positions. 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
LOW, MEDIUM, or HIGH positions.
IMPORTANT: Release downward pressure while turning control knob.
Control knob will lock at the desired position.
Control
Knob VN1800C
OFF
PILOT
IGN
LOW
OFF
PILOT
IGN
MED
OFF
PILOT
IGN
HIGH
OFF
WARNING
WARNING ICON G 001
CAUTION
WARNING ICON G 001
VN3000C
Figure 21 - Burner Patterns
to the
C-clockwise
LOW
MED
HIGH
OFF
Continued
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