Desa CLD3924NTA, CLD3924PTA, CLD3018NA 24 Inspecting Burners, Cleaning Maintenance

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INSPECTING BURNERS

Pilot Flame Pattern

Burner Primary Air Holes

Main Burner

CLEANING AND MAINTENANCE

ODS/Pilot And Burner Cleaning Burner Injector Holder and Pilot Air Inlet Hole

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INSPECTING BURNERS

Check pilot flame pattern and burner flame patterns often.

PILOT FLAME PATTERN

Figure 29 shows a correct pilot flame pattern. Figure 30 shows an incorrect pilot flame pattern. The incorrect pilot flame is not touching the thermocouple. This will cause the thermocouple to cool. When the thermocouple cools, the heater will shut down.

If pilot flame pattern is incorrect, as shown in Figure 30

•turn heater off (see To Turn Off Gas to Appliance, page 17 [manu- ally-controlled models] or page 18 [thermostatically-controlled model])

•see Troubleshooting, pages 21 through 23

Note: The pilot flame on natural gas units will have a slight curve, but flame should be blue and have no yellow or orange color.

Pilot Burner Thermocouple

Pilot Burner

Propane/LP ThermocoupleNatural Gas

Figure 29 - Correct Pilot Flame Pattern

 

Pilot Burner Thermocouple

Pilot Burner

 

Propane/LP

Thermocouple

Natural Gas

Figure 30 - Incorrect Pilot Flame Pattern

BURNER PRIMARY AIR HOLES

Air is drawn into the burner through the holes in the fitting at the entrance to the burner. These holes may become blocked with dust or lint. Periodically inspect these holes for any blockage and clean as necessary. Blocked air holes will create soot.

MAIN BURNER

Periodically inspect all burner flame holes with the heater running. All slotted burner flame holes should be open with yellow flame present. All round burner flame holes should be open with a small blue flame present. Some burner flame holes may become blocked by debris or rust, with no flame present. If so, turn off heater and let cool. Remove blockage, blocked burner flame holes will create soot.

CLEANING AND

MAINTENANCE

WARNING: Turn off heater and let cool before cleaning.

CAUTION: You must keep control areas, burner, and circulating air passageways of heater clean. In- spect these areas of heater before each use. Have heater inspected yearly by a qualified service person. Heater may need more frequent cleaning due to exces- sive lint from carpeting, bedding material, pet hair, etc.

ODS/PILOT AND BURNER

• Use a vacuum cleaner or small, soft bristled brush to clean.

CLEANING BURNER INJECTOR HOLDER AND PILOT AIR INLET HOLE

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, and lint. Clean these air inlet holes prior to each heating season. Blocked air holes will create soot. We recommend that you clean the unit every every three months during operation and have heater inspected yearly by a qualified service person.

We also recommend that you keep the burner tube 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 com- pressed air in a can. You can use a vacuum cleaner in the blow position. If using compressed air in a can, please follow the direc- tions 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 burner, pilot, and primary air inlet holes on injector holder for dust and dirt (see Figure 31).

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

Injector Holder (May Be Brass or Aluminum Depending on Model)

Burner Tube

Primary Air Inlet Holes (Shape of Holes May Vary by Model)

Figure 31 - Injector Holder On Outlet Burner Tube

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Contents Winchester Oak Model Shown OWNER’S Operation and Installation ManualCLD3924PTA, CLD3924NTA What to do if YOU Smell GASSafety Information Table of ContentsProduct Identification AIR for Combustion and Ventilation Product FeaturesLocal Codes UnpackingConfined Space and Unconfined Space Determining FRESH-AIR Flow for Heater LocationDetermining if You Have a Confined or Unconfined Space Ventilation Air From Outdoors InstallationVentilation AIR Ventilation Air From Inside BuildingMinimum Fireplace Clearance to Combustible Materials Check GAS TypeMinimum Firebox Size Minimum Noncombustible Material Clearances If Not Using MantelDetermining Minimum Mantel Clearance Determining Minimum Mantel Clearance when Using a HoodMantel Clearances Floor ClearancesArea of Various Standard Round Flues Installing Damper Clamp Accessory for Vented OperationInstalling Heater Base Assembly Installation Items NeededAttaching Flexible Gas Hose to Heater Gas Regulator Connecting to GAS SupplyChecking GAS Connections Pressure Testing Gas Supply Piping SystemEquipment Shutoff Valve Pressure Testing Heater Gas ConnectionsFit over the burner see . Make sure the front What to do if YOU Smell GAS Operating HeaterVariable Control Operation Lighting InstructionsShutting Off Burners Only pilot stays lit Manual Lighting ProcedureTo Turn OFF GAS to Appliance Shutting Off HeaterThermostat Control Operation Inspecting Burners Cleaning MaintenanceService Hints Technical ServiceReplacement Parts Observed Problem Possible Cause Remedy TroubleshootingMaintenance, Gas leak. See Warning statement at For Masonry and Factory-built Metal Fireplace Optional Positioning of Thermostat Sensing BulbModel CGS2718P CLD3018PA CGS3124P CLD3924PTA SpecificationsIllustrated Parts Breakdown Variable Manually-Controlled Winchester Oak Models Parts ListCLD3018NA CLD3018PA KEY Part Number CLD3018NA CLD3018PA Description QTY CLD3924NTA CLD3924PTA KEY Part Number CLD3924NTA CLD3924PTA Description QTY Parts Central AccessoriesOwners Registration Form Postage Required 107068 Warranty Information

CLD3018NA 24, CLD3924NTA, CLD3924PTA specifications

The Desa CLD3018NA, CLD3924PTA, and CLD3924NTA are advanced heating solutions designed to provide efficient warmth for residential and commercial spaces. These models stand out for their innovative features, reliable performance, and cutting-edge technologies.

The CLD3018NA is renowned for its compact design and powerful heating capabilities. With a heat output of up to 30,000 BTUs, it efficiently warms areas up to 1,200 square feet. Its dual-fuel capability allows it to operate on either natural gas or propane, making it versatile for different settings. The adjustable thermostat provides precise temperature control, ensuring optimal comfort. Additionally, the CLD3018NA features an easy-to-use ignition system for quick startups and a blower fan to enhance heat circulation.

Moving on to the CLD3924PTA, this model offers a larger heating capacity, capable of delivering up to 35,000 BTUs. It is ideal for medium to large spaces, effectively heating areas of up to 1,500 square feet. One notable characteristic of the CLD3924PTA is its aesthetic appeal, with a sleek design that can complement various interior styles. The unit comes equipped with an automatic shut-off feature for safety, ensuring that users can enjoy peace of mind while using it. Furthermore, the adjustable heat output allows for customized comfort in changing weather conditions.

The CLD3924NTA variant takes efficiency to the next level. With similar heating capabilities as the CLD3924PTA, it boasts enhanced energy efficiency ratings. It incorporates advanced insulation technology to minimize heat loss, making it an eco-friendly choice for conscientious consumers. The built-in air filter helps maintain indoor air quality by reducing dust and allergens, which is particularly beneficial for households with allergy sufferers. Additionally, the CLD3924NTA is designed for quiet operation, ensuring that users can enjoy warmth without the distraction of noisy machinery.

All three models benefit from Desa's commitment to quality and reliability. Built using durable materials and subjected to rigorous testing, they are engineered for longevity and consistent performance. Easy installation and maintenance further enhance their appeal, making these heaters a practical choice for any homeowner or business owner in need of a dependable heating solution. In summary, the Desa CLD3018NA, CLD3924PTA, and CLD3924NTA represent the pinnacle of heating technology, combining efficiency, safety, and aesthetic value to enhance any environment.
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