Inspecting Burners - Desa "TUDOR" VT32N-A Series Owner's Operation And Installation Manual

OPERATING FIREPLACE
Continued
OPERATING OPTIONAL GWMT1
WALL MOUNTED THERMOSTAT
WARNING: Do not connect the thermostat to a
power source. Electrical shock and/or a fire hazard
will occur.
Light the fireplace as instructed in Lighting Instructions on
page 24. Set wall thermostat to desired temperature.
This thermostat has been electronically calibrated at the factory
and requires no adjustment or leveling.
Upon installation, the thermostat must be allowed to stabilize
at room temperature for a minimum of 30 minutes for proper
operation.
To turn the fireplace off, adjust thermostat to the lowest set-
ting and turn the gas control knob back to PILOT. The pilot
will remain lit.
IMPORTANT: To turn the pilot off, turn the gas control knob
on the heater to the OFF position.
OPERATING OPTIONAL
BLOWER ACCESSORY
Locate the blower controls by opening the lower louver panel
on the fireplace. Blower controls are located on the right side of
the switch bracket to the left just inside the louver panel.
The BK manual blower and the BKT thermostatically-controlled
blower have an ON setting and an OFF setting. The blower
will only run when the switch is in the ON position. In the OFF
position, the blower will not operate.
Note for BKT Only: If you are using BKT blower with optional
thermostat (wall mounted or remote control) for the fireplace,
your fireplace and 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.
The blower helps distribute heated air from the fireplace. Peri-
odically check the louvers of the firebox and remove any dust,
dirt or other obstructions that will hinder the flow of air.
116646-01A

INSPECTING BURNERS

Check pilot flame pattern and burner flame patterns often.
PILOT ASSEMBLY
The pilot assembly is factory preset for the proper flame height.
Alterations may have occurred during shipping and handling. Call
a qualified service person to readjust the pilot if necessary.
The height of the thermopile must be 3/8" to 1/2" above the pilot
flame as shown in Figure 55. The thermocouple must be at a height
of about 1/8" above the pilot flame. The flame from the pilot burner
must extend beyond both the thermocouple and thermopile.
If you pilot assembly does not meet these requirements:
• turn fireplace off (see To Turn Off Gas to Appliance, page 25)
• see Troubleshooting, page 29
Thermopile
Figure 55 - Pilot Assembly
www.desatech.com
3/8" to 1/2"
Pilot Burner
Piezo
Ignitor
27
27
1/8"
Thermocouple