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OPERATING FIREPLACE
20
Manual Lighting Instructions for Electrical Power Outage (Cont.)
To Turn Off Gas To Appliance
Optional Blower Operation
INSPECTING BURNERS
Pilot Flame Pattern
OPERATING FIREPLACE
Continued
4. Place the magnetic manual override handle, provided with
this unit, on the end of the gas valve stem (see Figure 39,
page 19).
5. Turn the override handle fully counterclockwise
the PILOT position. The handle will not stop but will begin
to slip when you have fully turned to the PILOT position.
6. While holding the valve handle in the PILOT position, press
and release piezo ignitor button (see Figure 39, page 19).
This will light the pilot. If needed, keep pressing ignitor
button until pilot lights.
7. When pilot flame is lit, hold manual override handle until
thermocouple heats (approximately 5 to 15 seconds). If pi-
lot goes out, repeat process. If several attempts to light the
pilot fail, contact a qualified service person or gas supplier
for repairs.
8. When thermocouple is heated, release override handle. The
main burner will immediately light on high flame. Adjust
flame size by turning override handle.
TO TURN OFF GAS
TO APPLIANCE
Shutting Off Heater When Manually Lit
Set manual ignition bypass switch on control panel to OFF
(automatic ignition position). This will cause the controls to shut
down the fireplace.
OPTIONAL BLOWER
OPERATION
Locate the blower switch by opening lower louver on fireplace.
Blower switch is located at lower left inside louver door.
Note: It is safe to operate fireplace with blower turned off.
However, the blower helps distribute heated air from the fireplace.
Follow installation instructions included with the blower
accessory.
For more information, visit www.desatech.com
For more information, visit www.desatech.com
This blower has three settings: ON, OFF, and AUTO. In the ON
to
position, the blower will operate constantly. In the OFF posi-
tion, the blower will not operate. In the AUTO position, the
blower will start when the thermostat senses a sufficient in-
crease in firebox temperature.
Note: Your fireplace and thermostat blower will not turn on
and off at the same time. The fireplace may run for several
minutes before the blower turns on. After the heater modulates
to the pilot position, the blower will continue to run. The blower
will shut off after the firebox temperature decreases.
Note: It is safe to operate fireplace with blower turned off.
However, the blower helps distribute heated air from the fireplace.
Piezo Ignitor
AUTO/OFF/ON
Switch
Figure 40 - AUTO/OFF/ON Switch
INSPECTING BURNERS
Check pilot flame pattern and burner flame patterns often.
PILOT FLAME PATTERN
Figure 41 on page 21 shows a correct pilot flame pattern. Figure 42,
page 21, shows an incorrect pilot flame pattern. The incorrect pilot
flame is not touching the thermocouple. This will cause the thermo-
couple to cool. When the thermocouple cools, the heater will shut
down.
If pilot flame pattern is incorrect, as shown in Figure 42, page 21
• turn heater off (see To Turn Off Gas to Appliance, page 19 or col-
umn 1)
• see Troubleshooting, pages 23 through 25
Note: The pilot flame on natural gas units will have a slight curve,
but the flame should be blue and have no yellow or orange color.
OPERATING
FAN
Fan Switch
110112-01A
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