Desa CDR3924PT Cleaning Maintenance, Burner Injector Holders and Pilot AIR Inlet Holes, Logs

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CLEANING AND

MAINTENANCE

WARNING: Turn off heater and let cool before cleaning.

CAUTION:Youmustkeepcon- trolareas,burners,andcirculating air passageways of heater clean. Inspect these areas of heater before each use. Have heater inspected yearly by a qualified service person. Heater may need more frequent cleaning due to excessive lint from carpeting, pet hair, bedding material, etc.

WARNING: Failure to keep the primary air opening(s) of the burner(s) clean may result in sooting and property damage.

BURNER INJECTOR HOLDERS AND PILOT AIR INLET HOLES

The primary air inlet holes allow the proper amount of air to mix with the gas. This provides a clean burning flame. Keep these holes clear of dust, dirt, lint, and pet hair. Clean these air inlet holes prior to each heating season. Blocked air holes will create soot. We recommend that you clean the unit every three months during operation and have heater inspected yearly by a qualified service person.

We also recommend that you keep the burner tubes and pilot assembly clean and free of dust and dirt. To clean these parts we recommend using compressed air no greater than 30 PSI. Your local computer store, hardware store, or home center may carry compressed air in a can. You can use a vacuum cleaner in the blow position. If using com- pressed air in a can, please follow the directions on the can. If you don't follow directions on the can, you could damage the pilot assembly.

1.Shut off the unit, including the pilot. Allow the unit to cool for at least thirty minutes.

2.Inspect burners, pilot, and primary air inlet holes on injector holder for dust and dirt (see Figures 28 or 29).

3.Blow air through the ports/slots and holes in the burners.

4.Check the injector holders located at the end of the burner tubes again. Remove any large

particles of dust, dirt, lint, or pet hair with a soft cloth or vacuum cleaner nozzle.

5.Blow air into the primary air holes on the injector holders.

6.In case any large clumps of dust have now been pushed into the burner repeat steps 3 and 4.

Clean the pilot assembly also.Ayellow tip on the pilot flame indicates dust and dirt in the pilot assembly. There is a small pilot air inlet hole about two inches from where the pilot flame comes out of the pilot assembly (see Figure 30). With the unit off, lightly blow air through the air inlet hole. The access hole for propane/LPpilot is on the front of the burner carriange as shown in Figure 30. The access hole for natural pilot is behind the pilot bracket on the top of burner carriage (see Figure 30). You may blow through a drinking straw if compressed air is not available. Injector Holder Burner Tube

Primary Air

Inlet Holes

Figure 28 - Injector Holder On Outlet

Burner Tube - Rear Burner

 

Injector Holder

Ports/Slots

 

Primary Air Inlet Holes

Figure 29 - Injector Holder On Front

Pilot

Outlet Burner Tube

Access

Bracket

Hole for

 

Pilot

Cleaning

Natural

Assembly

Pilot

 

Access

 

Hole for

 

Cleaning

 

Propane/LP

Pilot

Pilot Air Inlet Hole

Figure 30 - Cleaning Pilot Air Inlet Hole (Your pilot may vary from pilots shown)

LOGS

•If you remove logs for cleaning, refer to Install- ing Logs, page 14, to properly replace logs.

•Replace log(s) if broken or chipped (dime-sized or larger).

113183-01A

www.desatech.com

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Contents Thermostat Models CDR3924NT and CDR3924PT What to do if YOU Smell GASTable of Contents Safety Information Local Codes Product Identification Product FeaturesConfined and Unconfined Space AIR for Combustion VentilationDetermining FRESH-AIR Flow for Heater Location Unusually Tight ConstructionVentilation Air From Inside Building Ventilation AIRVentilation Air From Outdoors Check GAS Type Installation20 1/4 Installation and Clearances for VENT-FREE OperationRear WidthDetermining Minimum Mantel Clearance Determining Minimum Mantel Clearance When Using a HoodMantel Clearances Floor ClearancesInstallation Items Needed Installing Heater Base AssemblyExternal Regulator With Vent Pointing Down Connecting to GAS SupplyTest Pressures In Excess Of 1/2 Psig 3.5 kPa Checking GAS ConnectionsPropane/LP From Natural From GasTest Pressures Equal To or Less Than 1/2 Psig 3.5 kPa Installing LogsAdding Lava Rock Attaching Grate to Base AssemblyOperating Heater For Your Safety Read Before LightingLighting Instructions To Turn OFF GAS To Appliance Manual Lighting ProcedureThermostat Control Operation Burner Flame Patterns Technical ServiceInspecting Burners Pilot Flame PatternBurner Injector Holders and Pilot AIR Inlet Holes Cleaning MaintenanceLogs Observed Problem Possible Cause Remedy TroubleshootingMaintenance, Cold Minute Air in gas line Operate burners until air is Gas leak. See Warning For Masonry and FACTORY- Built Metal Fireplace Optional Positioning Thermostat Sensing BulbAccessories SpecificationsReplacement Parts Service HintsModels CDR3924PT and CDR3924NT Illustrated Parts BreakdownParts List Keep this Warranty Warranty InformationLimited Warranty Comfort Glow VENT-FREE GAS LOG Heaters

CDR3924PT specifications

Desa CDR3924PT is an advanced digital control thermostat designed for precise temperature management in residential and commercial settings. Its sleek design and intuitive interface make it a popular choice among homeowners and professionals alike, contributing to enhanced comfort and energy efficiency in various environments.

One of the standout features of the CDR3924PT is its programmable functionality. Users can set different temperature schedules for weekdays and weekends, allowing for tailored climate control to match occupancy patterns. This flexibility can lead to significant energy savings, as the thermostat can automatically adjust heating and cooling based on user preferences and habits.

The unit is equipped with a high-resolution LCD display, offering clear visibility of current temperature settings and system status. Additionally, it provides real-time feedback on energy consumption, allowing users to monitor and adjust usage to optimize efficiency. The intuitive touch controls simplify navigation through the various settings, ensuring that users can easily customize their environment.

Integration with smart home technology is another key characteristic of the CDR3924PT. It is compatible with various home automation systems, enabling users to control their heating and cooling remotely via smartphone apps. This connectivity ensures that users can adjust settings from anywhere, giving them the ability to prepare their home environment before arriving or to fine-tune adjustments on the go.

The CDR3924PT utilizes advanced sensor technology to maintain accurate temperature control. It continuously measures ambient conditions, making real-time adjustments to ensure consistent comfort levels. The thermostat’s adaptive learning capabilities also allow it to learn user preferences over time, further enhancing its ability to maintain optimal conditions with minimal energy consumption.

For safety and convenience, the thermostat features a user-friendly installation process along with compatibility with various HVAC systems. It includes built-in safety protocols that prevent overheating or unwanted system failures, ensuring reliable operation over time.

In summary, the Desa CDR3924PT stands out in the market for its programmable features, smart home integration, and advanced sensor technology, making it a top choice for those seeking efficient and effective temperature management solutions. Whether for residential use or commercial applications, its reliable performance and user-friendly design make it a vital component in modern climate control systems.
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