Vanguard VN1800C Owner's Operation And Installation Manual page 19

OPERATING
HEATER
Models VN1800IT
and VN2550IT
Continued
100750
Thermocouple
TO SELECT HEATING LEVEL
When running heater, set control knob at the 1, 2, 3, or 4
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 plaque control knob on right side of heater and turn
counterclockwise
C-clockwise
Release downward pressure while turning control knob.
IMPORTANT:
Control knob will lock at the desired position.
2. Turn thermostat control knob on left side of heater to any setting between
LO and HI. When burners cycle on, or from LO to HI, a "click" will
Note:
be heard. When the burners light, a "whoosh" noise will be heard.
Control
Knob
2
3
4
2
3
4
2
3
4
2
3
4
Ignitor Electrode
Figure 17 - Pilot
WARNING
WARNING ICON G 001
CAUTION
WARNING ICON G 001
to the desired position.
VN1800IT VN2550IT
1
1
1
1
Figure 18 - Burner Patterns
Pilot Burner
Continued
19