
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 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
Tools needed: 1/4" hex driver or socket
1.Remove logs. Locate the gas valve as- sembly and thermostat sensing bulb (see Figure 37).
2.With 1/4" hex driver or socket, loosen the thermostat screw. Carefully slide the ther- mostat sensing bulb out of the retaining clamp (see Figure 39).
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.
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 40 for location. If you have a
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
Gas Valve
Assembly
Mounting | Thermostat |
Bracket | Sensing |
| Bulb |
Figure 37 - Location of Gas Valve
Assembly and Thermostat Sensing Bulb
Figure 38 -
Capillary | Thermostat Screw |
| |
Retaining |
|
Clamp |
|
| Thermostat |
| Sensing |
| Bulb |
Figure 39 - Removing Thermostat
Sensing Bulb
Thermostat
Sensing Bulb
Mounting Clip
Figure 40 - Locating Thermostat Sensing
Bulb on Masonry Fireplace
Thermostat
Sensing Bulb
Adhesive- backed Mounting Clip
Figure 41 - Locating Thermostat Sensing Bulb on
Thermostat
Sensing Bulb
Mounting Clip
Glass Doors
Figure 42 - Installing Thermostat Sensing
Bulb Behind Glass Doors
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