Optional Positioning Of Thermostat Sensing Bulb - Desa Split Oak Design, American Oak Design Unvented Propane Gas Log Heater Model Split Oak and American Oak Design Owner's Operation And Installation Manual

SPLIT OAK AND AMERICAN OAK DESIGN
OPTIONAL
POSITIONING OF
THERMOSTAT
SENSING BULB
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
bulb.
The thermostat sensing bulb is located on
the gas valve assembly. This location al-
lows the thermostat to keep the room tem-
perature at an ideal comfort level for most
fireplace applications. For positioning the
thermostat sensing bulb elsewhere, an adhe-
sive-backed mounting clip has been pro-
vided.
Tools needed: 5/16" hex driver or socket
1. Locate the gas valve assembly and ther-
mostat sensing bulb (see Figure 35).
Thermostat
Sensing Bulb
Figure 35 - Location of Gas Valve
Assembly and Thermostat Sensing Bulb
2. The adhesive-backed mounting clip
(see Figure 36) is attached to the ther-
mostat sensing bulb. Remove the ad-
hesive-backed mounting clip.
Figure 36 - Adhesive-backed Mounting
Clip
103427
18", 24" AND 30" MODELS
3. With 5/16" hex driver or socket, loosen
the thermostat screw. Carefully slide
the thermostat sensing bulb out of the
retaining clamp (see Figure 37).
Note: Do not remove the screw. Make
sure you tighten the screw after remov-
ing the thermostat sensing bulb.
IMPORTANT: Do not force or bend the
thermostat sensing bulb or capillary.
Figure 37 - Removing Thermostat Sensing
Bulb
4. The thermostat sensing bulb may be
located to the lower right front side of
fireplace. Determine location of sens-
ing bulb, but do not mount sensing bulb
until step 5. If you have a masonry fire-
place, see Figure 38 for location.
Thermostat
Gas Valve
Sensing
Assembly
Bulb
Adhesive-
backed
Mounting Clip
Figure 38 - Locating Thermostat Sensing
Bulb on Masonry Fireplace
If you have a factory-built metal fireplace,
see Figure 39 for location.
Thermostat
Sensing
Bulb
Adhesive-
backed
Mounting Clip
Figure 39 - Locating Thermostat Sensing
Bulb on Factory-built Metal Fireplace
If your fireplace has glass doors, position
sensing bulb directly behind door gap on
right bottom side (see Figure 40).
Adhesive-
backed
Mounting Clip
Capillary
Figure 40 - Installing Thermostat Sensing
Bulb behind Glass Doors
Thermostat
Screw
Sensing
5.
Bulb
Retaining
Clamp
Q
Figure 41 - Positioning the Thermostat
Q Q
Sensing Bulb in the Vertical Position with
the Capillary at the Bottom
21
Thermostat
Sensing
Bulb
The mounting clip must be a minimum
of 3" from bottom of fireplace to pre-
vent 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 verti-
cally with the capillary at the bottom
(see Figure 41). Slide the thermostat
sensing bulb into the clip.
IMPORTANT: Do not crimp capillary.
Capillary
Q Q Q Q
Q Q Q Q Q
Glass Doors
Thermostat
Sensing
Bulb
Adhesive-
backed
Mounting
Clip
Do Not Crimp
Capillary