OWNER'S OPERATION AND INSTALLATION MANUAL UNVENTED (VENT-FREE) GAS HEATER CGD3924PT/NT CGD3018PT/NT CCL3018PTA/NTA CCL3924PTA/NTA CCL3930PTB/NTB
111160-01B
For more information, visit www.desatech.com
For more information, visit www.desatech.com
18
TO TURN OFF GAS
TO APPLIANCE
Shutting Off Heater
1. Press in and turn control knob clockwise
Clockwise
to the
HI position.
2. Turn control knob clockwise
Clockwise
to the pilot position.
3. Press in control knob and turn clockwise
Clockwise
to the
OFF position.
Shutting Off Burner(s) Only (pilot stays lit)
1. Turn control knob clockwise
Clockwise
to the HI position.
2. Press in and turn control knob clockwise
Clockwise
to the
pilot position.
CAUTION: Do not try to adjust heating levels by
using the equipment shutoff valve.
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 realis-
tic, dancing yellow flames. Selecting higher settings produces
greater heat output. This results in increased heating comfort.
VARIABLE CONTROL
OPERATION
WARNING: Do not operate heater between PILOT
and HI positions.
6. With control knob pressed in, press and release ignitor but-
ton. 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, page 19.
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 depress and turn control knob counterclockwise
C-clockwise
to desired heating level. The burner(s) should light.
Set control knob to any heat level between HI and LO.
Figure 35 - Control Knob and Ignitor Button Location
PILOT
OFF
LO
HI
Ignitor Button
Note:
Home owners generally prefer to operate their heater
with the chimney damper closed. This will put all the heat into
the room. However, there may be times you will desire the full
flames of the HI heat setting but will find the heat output
excessive. You can open the chimney damper (if you have one)
fully or partially to release some of the heat.
WARNING: Damper handle will be hot if heater
has been running.
Control Knob
1. STOP! Read the safety information in column 2, page 17.
2. Make sure equipment shutoff valve is fully open.
3. Press in and turn control knob clockwise
Clockwise
to the
OFF position.
4. Wait five (5) minutes to clear out any gas. Then smell for
gas, including near the floor. If you smell gas, STOP! Fol-
low “B” in the safety information, column 2 on page 17. If
you don’t smell gas, go to the next step.
5. Slightly depress and turn control knob counterclockwise
C-clockwise
to the PILOT position. Press in control knob for five
(5) seconds (see Figure 35).
Note:
You may be running this heater for the first 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 al-
low air to bleed from the gas system.
Figure 36 - Pilot
Thermocouple
Pilot Burner
Ignitor
Electrode
OPERATING HEATER (Manually Controlled Models)
Lighting Instructions (Cont.)
Variable Control Operations
To Turn Gas Off to Appliance
OPERATING HEATER
Continued