Desa CDR3924PT - Manual (Page 24)

www.desatech.com 113183-01F 4
OPTIONAL POSITIONING
OF THERMOSTAT
SENSING bULb
FOR MASONRY AND FACTORY-
BUILT METAL FIREPLACE
If your log set cycles to pilot, but the room tem-
perature drops to a lower than ideal comfort level
before the log set comes back on, you may want
to reposition the thermostat sensing bulb.
The thermostat sensing bulb is located on the left
side of the base 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.
1. Locate the gas valve assembly and thermostat
sensing bulb (see Figure 31).
2. Gently pull thermostat sensing bulb free from
the retaining clamp.
IMPORTANT: Do not force or bend the
thermostat sensing bulb or capillary.
3. The thermostat sensing bulb may be located
to the lower right front side of fireplace. De-
termine location of sensing bulb, but do not
mount sensing bulb until step 4. If you have a
masonry fireplace, see Figure 33 for location.
If you have a factory-built metal fireplace, see
Figure 34 for location.
If your fireplace has glass doors, position
sensing bulb directly behind door gap on right
bottom side (see Figure 35).
4. The mounting clip must be a minimum of 3"
from bottom of fireplace to prevent crimping
of capillary. Once you have decided on a
location, clean the area thoroughly. Remove
the paper backing from the adhesive on back
of mounting clip. Press the clip into the new
location so that the thermostat sensing bulb
will be positioned vertically with the capil-
lary at the bottom (see Figure 36). Slide the
thermostat sensing bulb into the clip.
IMPORTANT: Do not crimp capillary.
Figure 31 - Location of Gas Valve
Assembly and Thermostat Sensing Bulb
Figure 32 - Adhesive-backed Mounting Clip
Figure 33 - Locating Thermostat Sensing
Bulb on Masonry Fireplace
Figure 34 - Locating Thermostat Sensing
Bulb on Factory-built Metal Fireplace
Adhesive-backed
Mounting Clip
Thermostat
Sensing Bulb
Figure 35 - Installing Thermostat Sensing
Bulb Behind Glass Doors
Figure 36 - Positioning the Thermostat
Sensing Bulb in the Vertical Position
with the Capillary at the Bottom
Adhesive-
backed
Mounting
Clip
Glass Door
Thermostat
Sensing
Bulb
Capillary
Thermostat
Sensing Bulb
Do Not Crimp
Capillary
Adhesive-backed
Mounting Clip
Adhesive-
backed
Mounting Clip
Thermostat
Sensing Bulb
Gas Valve
Assembly
Thermostat
Sensing Bulb Retaining
Clamp