Desa HDVF3018N Owner's Operation And Installation Manual page 18

OPERATING HEATER
Continued
5. Slightly press and turn control knob coun-
terclockwise
Press in control knob for five (5) seconds
(see Figure 22).
Note: You may be running this heater for
the first time after hooking up to gas sup-
ply. If so, the control knob may need to be
pressed in for 30 seconds or more. This will
allow air to bleed from the gas system.
6. With control knob pressed in, press and
release ignitor button. This will light pilot.
The pilot is attached to the burner. If
needed, keep pressing ignitor button until
pilot lights.
Note: If pilot does not stay lit, 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.
7. Keep control knob pressed in for 30 seconds
after lighting pilot. After 30 seconds, release
control knob.
Note: If pilot goes out, repeat steps 3
through 7. If control knob does not pop out
when released, contact a qualified service
person or gas supplier for repairs.
8. Slightly press and turn control knob
counterclockwise
ing level. The burner(s) should light. Set
control knob to any heat level between HI
and LO.
WARNING: Do not operate
heater between PILOT and HI
positions.
Ignitor Button
Figure 22 - Control Knob and Ignitor
Button Location
18
to the PILOT position.
to desired heat-
Control Knob
www.desatech.com
Ignitor
Electrode
Thermocouple
Figure 23 - Pilot
VARIABLE CONTROL
OpERATION
The variable control valve can be set to any
heat setting and flame height desired, by simply
turning the control knob until that setting is
attained. Even the lowest setting provides re-
alistic, dancing yellow flames. Selecting higher
settings produces greater heat output. This
results in increased heating comfort.
CAUTION: Do not try to ad-
just heating levels by using the
equipment shutoff valve.
TO TURN OFF GAS
TO AppLIANCE
Shutting Off Heater
1. Press in and turn control knob clockwise
to the HI position.
2. Turn control knob clockwise
pilot position.
3. Press in control knob and turn clockwise
to the OFF position.
Shutting Off Burner(s) Only (pilot stays lit)
1. Turn control knob clockwise
HI position.
2. Press in and turn control knob clockwise
to the pilot position.
MANUAL LIGHTING
pROCEDURE
1. Follow steps 1 through 5 under Lighting
Instructions, page 17.
2. Depress control knob and light pilot with
match.
3. Keep control knob pressed in for 30 seconds
after lighting pilot. After 30 seconds, release
control knob. Now follow step 8, under
Lighting Instructions, column 1.
Pilot Burner
to the
to the
119421-01A