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110021-01M
32
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 near the
gas valve assembly on the mounting bracket.
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 43).
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 45
for location. If you have a factory-built
metal fireplace, see Figure 46 for location.
If your fireplace has glass doors, position
sensing bulb directly behind door gap on right
bottom side (see Figure 47).
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 capillary
at the bottom (see Figure 48, page 33). Slide
the thermostat sensing bulb into the clip.
IMPORTANT: Do not crimp capillary.
Figure 44 - Adhesive-backed Mounting Clip
Adhesive-backed
Mounting Clip
Figure 45 - Locating Thermostat Sensing
Bulb on Masonry Fireplace
Thermostat
Sensing Bulb
Thermostat
Sensing Bulb
Figure 46 - Locating Thermostat Sensing
Bulb on Factory-built Metal Fireplace
Adhesive-backed
Mounting Clip
Glass Doors
Figure 47 - Installing Thermostat Sensing
Bulb Behind Glass Doors
Thermostat
Sensing Bulb
Adhesive-
backed
Mounting Clip
Figure 43 - Location of Gas Valve
Assembly and Thermostat Sensing Bulb
Gas Valve
Assembly
Thermostat
Sensing Bulb
Retaining
Clamp