www.desatech.com
113681-01A
14
TO SELECT
HEATING LEVEL
WARNING: When running
heater, set control knob at LOW,
MED, or HI locked positions.
Never set control knob between
locked positions. Poor combus-
tion and higher levels of carbon
monoxide may result.
CAUTION: Do not try to ad-
just heating levels by using the
equipment shutoff valve.
Slightly press in control knob and turn coun-
terclockwise
to the desired heat position
(see Figure 20).
IMPORTANT:
Release downward pressure
while turning control knob. Control knob will
lock at the desired position.
LOW
HI
OFF
MED
Two
Three
Five
Plaque
Plaque
Plaque
Figure 20 - Burner Patterns for
Non-Thermostat Models
TO TURN OFF GAS
TO APPLIANCE
Shutting Off Heater
1. Turn control knob clockwise
to the
OFF position.
2. Unplug optional blower if service is to be
performed.
Shutting Off Burner Only (pilot stays lit)
Turn control knob clockwise
to the PI-
LOT position.
HIGH
OFF
LOW
MED
PILOT
IGN
5. Turn control knob to PILOT and press in.
Note:
You may be running this heater for
the first time after hooking up to gas sup-
ply. If so, you may need to press in control
knob for 30 seconds or more. This will al-
low air to bleed from the gas system.
• If control knob does not pop up when re-
leased, contact a qualified service person
or gas supplier for repairs.
6. With control knob pressed in, push down
and release ignitor button. This will light
pilot. The pilot is attached to the front of
burner. If needed, keep pressing ignitor but-
ton until pilot lights.
If pilot does not light
• turn control knob clockwise
to the
OFF position
• repeat steps 5 and 6
If pilot does not stay lit after several tries
• refer to
Troubleshooting
, page 19
• contact a qualified service person or gas
supplier for repairs
Until repairs are made, light pilot with
match. To light pilot with match, see
Manual Lighting Procedure
, page 15.
7. Keep control knob pressed in for 30 sec-
onds after lighting pilot. After 30 seconds,
release control knob.
Note:
If pilot goes out,
repeat steps 5 through 7.
Ignitor Button
Control Knob
Figure 18 - Control Knob In The OFF
Position for Non-Thermostat Models
Figure 19 - Pilot (Pilot may vary with
Model)
Ignitor Electrode
Pilot
Burner
Thermocouple
OPERATING HEATER
Continued
LOW
HI
OFF
MED
LOW
HI
OFF
