www.desatech.com
119426-01F
32
OPTIONAL POSITIONING
OF THERMOSTAT
SENSING bULb
(Thermostat-Controlled Models Only)
FOR MASONRY AND FACTORY-
BUILT METAL FIREPLACE
If your log set cycles to pilot, but the room
temperature drops to a lower than ideal
comfort level before the log set comes back
on, you may want to reposition the thermostat
sensing bu b.
The thermostat sensing bulb is located on
the gas valve assembly. This location allows
the thermostat to keep the room temperature
at an ideal comfort level for most fireplace
applications. For positioning the thermostat
sensing bulb elsewhere, an adhesive-backed
mounting clip is available (see Figure 44).
Tools needed: 5/16" hex driver or socket
1. Locate the gas valve assembly and ther-
mostat sensing bulb (see Figure 45).
2. With 5/16” hex driver or socket, loosen
the thermostat screw. Carefully slide the
thermostat sensing bulb out of the retain-
ing clamp (see Figure 46).
Note:
Do not remove the screw. Make sure
you tighten the screw after removing the
thermostat sensing bulb.
IMPORTANT:
Do not force or bend the
thermostat sensing bulb or capillary.
Capillary
Screw
Retaining Clamp
Thermostat
Sensing Bu b
Figure 45 - Location of Gas Valve
Assembly and Thermostat Sensing Bulb
Thermostat
Sensing Bulb
Gas Valve
Assembly
Figure 44 - Adhesive-backed Mounting
Clip
Figure 46 - Removing Thermostat
Sensing Bulb
Figure 47 - Locating Thermostat Sensing
Bulb on Masonry Fireplace
Figure 48 - Locating Thermostat Sensing
Bulb on Factory-built Metal Fireplace
Adhesive-backed
Mounting Clip
Thermostat
Sensing Bulb
Adhesive-backed
Mounting Clip
Thermostat
Sensing Bulb
(Unit Will
Differ From
Illustration)
(Unit Will
Differ From
Illustration)
3. The thermostat sensing bulb may be
located to the lower right front side of
fireplace. Determine location of sensing
bulb, but do not mount sensing bulb until
step 4. If you have a masonry fireplace,
see Figure 47 for location.
If you have a factory-built metal fireplace,
see Figure 48 for location.
