Gas Heating System User Manual

www.desatech.com
113097-01L20
5. Slightly press and turn control knob coun-
terclockwise to the PILOT position.
Press in control knob for ve (5) seconds
(see Figure 29).
Note: You may be running this heater
for the rst time after hooking up to gas
supply. 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
qualied 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 sec-
onds 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 qualied service
person or gas supplier for repairs.
8. Slightly depress and turn control knob
counterclockwise to desired heat-
ing level. The burner(s) should light. Set
control knob to any heat level between HI
and LO.
9. To leave pilot lit and shut off burners only,
turn control knob clockwise to the
HI position then press in and turn clock-
wise to PILOT position.
WARNING: Do not operate
heater between PILOT and HI
positions.
OPERATION
Continued
MANUALLy-CONTROLLED MODELS
Figure 29 - Control Knob and Ignitor
Button Location
Ignitor Button
Control Knob
Figure 30 - Pilot
Thermocouple
Pilot Burner
Ignitor
Electrode
VARIABLE CONTROL
OPERATION
The variable control valve can be set to any
heat setting and ame height desired, by sim-
ply turning the control knob until that setting
is attained. Even the lowest setting provides
realistic, dancing yellow ames. 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
1. Press in and turn control knob clockwise
to the HI position.
2. Turn control knob clockwise to the
pilot position.
3. Press in control knob and turn clockwise
to the OFF position.
4. Close equipment shutoff valve (see Figure
16, page 15).
MANUAL LIGHTING
PROCEDURE
1. Follow steps 1 through 5 under Lighting
Instructions, pages 19 and 20.
2. Depress control knob and light pilot with
match.
3. Keep control knob pressed in for 30 sec-
onds after lighting pilot. After 30 seconds,
release control knob. Now follow step 8,
under Lighting Instructions, column 1.