Desa CCL3924NT, CGD3930NT, CY3124N, CY2718N Optional Positioning of Thermostat Sensing Bulb

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VENT-FREE NATURAL GAS LOG HEATER

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 thermo- stat 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 applica- tions. For positioning the thermostat sens- ing bulb elsewhere, an adhesive-backed mounting clip is available.

Tools needed: 1/4" hex driver or socket

1.

Remove logs. Locate the gas valve as-

 

sembly and thermostat sensing bulb

 

(see Figure 38).

2.

With 1/4" hex driver or socket, loosen

 

the thermostat screw. Carefully slide

 

the thermostat sensing bulb out of the

 

retaining clamp (see Figure 40).

 

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.

3.

The thermostat sensing bulb may be

 

located to the lower right front side of

4.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 44). Slide the thermostat sensing bulb into the clip.

IMPORTANT: Do not crimp capillary.

Gas Valve

Assembly

Thermostat

MountingSensing Bulb

Bracket

Figure 38 - Location of Gas Valve Assem- bly and Thermostat Sensing Bulb

Figure 39 - Adhesive-backed Mounting Clip

Thermostat

Sensing Bulb

Adhesive- backed Mounting Clip

Figure 41 - Locating Thermostat Sensing Bulb on Masonry Fireplace

Thermostat

Sensing

Bulb

Adhesive- backed Mounting Clip

Figure 42 - Locating Thermostat Sensing Bulb on Factory-built Metal Fireplace

Thermostat

Sensing

Bulb

Adhesive- backed Mounting Clip

Glass Doors

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 41 for location. If you

have a factory-built metal fireplace, see

Capillary

Thermostat Screw

Figure 43 - Installing Thermostat Sensing Bulb behind Glass Doors

Figure 42 for location. If your fireplace

has glass doors, position sensing bulb

directly behind door gap on right bot-

tom side (see Figure 43).

Retaining Clamp

Capillary

Thermostat Sensing Bulb

Adhesive- backed Mounting Clip

Thermostat Sensing Bulb

Do Not Crimp Capillary

Figure 40 - Removing Thermostat Sens- ing Bulb

Figure 44 - Positioning the Thermostat Sensing Bulb in the Vertical Position with the Capillary at the Bottom

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104340

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Contents OWNER’S Operation and Installation Manual What to do if YOU Smell GASPatent Pending Safety Information VENT-FREE Natural GAS LOG HeaterProduct Features Product IdentificationLocal Codes UnpackingSafety Pilot AIR for Combustion and VentilationPiezo Ignition System Providing Adequate VentilationAIR for Combustion Ventilation Determining FRESH-AIR Flow for Heater LocationDetermining if You Have a Confined or Unconfined Space Ventilation AIR Ventilation Air From Inside BuildingVentilation Air From Outdoors Installation InstallationCheck GAS Type Minimum Wall and Ceiling Clearances see FigureIf Not Using Mantel If Using MantelMinimum Noncombustible Material Clearances Determining Minimum Mantel Clearance When Using a Hood Mantel ClearancesFloor Clearances Determining Minimum Mantel ClearanceInstalling Damper Clamp Accessory for Vented Operation ChimneyHeight ft Flue Opening sq. ins Installing Heater Base Assembly Installation Items NeededConnecting to GAS Supply Gas ConnectionPressure Testing Gas Supply Piping system Pressure Testing Heater Gas ConnectionsChecking GAS Connections Test Pressures In Excess Of 1/2 PsigInstalling Logs Dual Burner Yellow Flame ModelsInstalling Middle Log #1 Dual Burner Premium Aged Split Oak ModelsInstalling Back Log Single Burner Mountain Oak ModelsFor Your Safety Read Before Lighting Operating HeaterLighting Instructions Manual Lighting Procedure Variable Control OperationTo Turn OFF GAS To Appliance Shutting Off HeaterInspecting Burners Thermostat Control OperationPilot Flame Pattern Cleaning and Maintenance Cleaning Burner Injector Holder and Pilot AIR Inlet HoleBurner Primary AIR Holes Main BurnerTroubleshooting Observed Problem Possible Cause RemedyMaintenance, Top Gas leak. See Warning statement at topOptional Positioning of Thermostat Sensing Bulb For Masonry and Factory- built Metal FireplaceService Hints Technical ServiceReplacement Parts SpecificationsParts Central Accessories Fireplace HoodBlack GA6050 Brass GA6052 Antique Brass GA6053 Damper Clamp GA6080 Not ShownIllustrated Parts Breakdown Parts List CGD3018N CGD3924N CGD3930NCGB3924NT CGB3930NT Thermostatically-Controlled Premium Aged Split Oak ModelsCGB3924NT CGB3930NT CGD3018NT CGD3924NT CGD3930NT CGD3018NT CGD3924NT CGD3930NT Variable Manually-Controlled Mountain Oak Models CY2718N CY3124N Warranty Information

CY2718N, CY3124N, CGD3930NT, CCL3924NT specifications

Desa CCL3924NT, CGD3930NT, CY3124N, and CY2718N are innovative heating appliances designed to enhance comfort while promoting energy efficiency. Each model has its unique features and technologies that cater to diverse heating needs in residential and commercial settings.

The Desa CCL3924NT is a powerful, gas-fired heater that boasts an efficient heating capacity. This model is particularly favored for its ability to deliver warmth quickly, thanks to its advanced combustion technology that ensures optimal fuel usage. The CCL3924NT incorporates a user-friendly digital thermostat, enabling precise temperature control, which not only enhances comfort but also contributes to energy savings. Additionally, the unit has a sleek design, making it a versatile choice for various interior styles.

Next, the CGD3930NT represents a robust and efficient design optimized for large spaces. Equipped with a high output capability and an adjustable burner, it allows for customizable heating solutions. One of its notable features is the built-in safety mechanisms that include an automatic shut-off in case of overheating, ensuring peace of mind for users. The CGD3930NT is easy to install and maintain, further reinforcing its reputation as a reliable heating solution.

The CY3124N model stands out for its advanced technologies such as infrared heating. This model utilizes infrared technology to provide direct heat to objects and people rather than just warming the air, resulting in immediate comfort. The CY3124N is compact, making it an ideal choice for smaller rooms or spaces needing supplementary heating. Its energy-efficient operation helps reduce utility costs while promoting an environmentally friendly heating solution.

Lastly, the CY2718N is known for its flexibility and versatility. This model combines both portability and efficiency, featuring wheels for easy movement from room to room. The CY2718N is equipped with a multi-function control panel, allowing users to set timers, adjust heat settings, and select operation modes according to their specific preferences. This model is particularly popular among those looking for a temporary heating solution without compromising on performance.

In conclusion, Desa CCL3924NT, CGD3930NT, CY3124N, and CY2718N offer diverse features, advanced technologies, and unique characteristics that cater to various heating requirements. Their commitment to efficiency and user comfort makes them excellent choices for anyone in need of effective heating solutions.
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