Vanguard VN18A Safety Information And Installation Manual page 15

OpERATING HEATER
Continued
Ignitor Button
Figure 19 - Control Knob In The OFF
Position (Manual Controlled Models)
Ignitor Button
Figure 20 - Control Knob In The OFF
Position (Thermostat Models)
Thermocouple
Figure 21 - Pilot
TO TURN OFF GAS
TO APPLIANCE
Shutting Off Heater
1. Turn control knob clockwise
OFF position.
2. Turn off any electric power to the appliance
if service is to be performed.
Shutting Off Burner Only (pilot stays lit)
Turn control knob clockwise
position.
113052-01F
Control Knob
OFF
Control Knob
Ignitor Electrode
Pilot
Burner
to the
to the PILOT
www.desatech.com
MANUAL LIGHTING
PROCEDURE
1. Remove front panel (see page 9).
2. Follow steps 1 through 7 under Lighting
Instructions, page 14.
3. With control knob pressed in, strike match.
Hold match to pilot until pilot lights.
4. Keep control knob pressed in for 30 seconds
after lighting pilot. After 30 seconds, release
control knob. Now follow step 9, under Light-
ing Instructions, page 14.
5. Replace front panel.
THERMOSTAT
OPERATION
The thermostatic control used on these models
differs from standard thermostats. Standard ther-
mostats simply turn on and off the burner. The
thermostat used on this heater senses the room
temperature. At times the room may exceed the
set temperature. If so, the burner will shut off. The
burner will cycle back on when room temperature
drops below the set temperature. The control knob
can be set to any heating level between 1 and 5.
All plaques will turn off and on.
Note: The thermostat sensing bulb measures the
temperature of air near the heater cabinet. This
may not always agree with room temperature
(depending on housing construction, installation
location, room size, open air temperatures, etc.)
Frequent use of your heater will let you determine
your own comfort levels.
TO SELECT
HEATING LEVEL
WARNING: When running
heater, set control knob at LOW,
MEDIUM or HIGH locked posi-
tions. Never set control knob
between locked positions. Poor
combustion and higher levels of
carbon monoxide may result.
CAUTION: Do not try to ad-
just heating levels by using the
equipment shutoff valve.
15