Desa GWN30T, GWP30T Cleaning Maintenance, ODS/PILOT and Burner, Burner Pilot AIR Inlet, Cabinet

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CLEANING AND

MAINTENANCE

WARNING: Turn off heater and let cool before cleaning.

CAUTION: You must keep control areas, burner, and cir- culating air passageways of heater clean. Inspect these ar- eas 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, bedding mate- rial, pet hair, etc.

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

ODS/PILOT AND BURNER

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

BURNER PILOT AIR INLET

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 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 com- pressed air no greater than 30 PSI.Your local com- puter 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 burner, pilot for dust and dirt.

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

4.Never insert objects into the pilot tube. Clean the pilot assembly also. A yellow tip on the pilot flame indicates dust and dirt in the pilot as- sembly. There is a small pilot air inlet about two inches from where the pilot flame comes out of the pilot assembly (see Figure 27). With the unit off, lightly blow air through the air inlet. You may blow through a drinking straw if compressed air is not available.

Pilot Assembly

Pilot Air Inlet

Figure 27 - Pilot Inlet Air

(Propane/LP Pilot Shown)

CABINET

Air Passageways

• Use a vacuum cleaner or pressurized air to clean.

Exterior

•Use a soft cloth dampened with a mild soap and water mixture. Wipe the cabinet to remove dust.

107884-01H

www.desatech.com

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Contents What to do if YOU Smell GAS Table of Contents Safety Information Unpacking Product FeaturesLocal Codes Product IdentificationConfined and Unconfined Space AIR for Combustion VentilationProviding Adequate Ventilation Unusually Tight ConstructionDetermining if You Have a Confined or Unconfined Space Determining FRESH-AIR Flow for Heater LocationVentilation Air From Inside Building InstallationVentilation AIR Check GAS TypeLocating Heater Installation ItemsInstalling Heater to Wall Attaching To Wall Anchor Method 20,000 Btu/Hr ModelsPlacing Heater On Mounting Bracket Mounting Base Feet to Heater Installing Bottom Mounting ScrewsMounting Base Feet to Floor Where required by local code Mounting Heater to Floor with Optional Floor KITTypical Inlet Pipe Diameters Connecting to GAS SupplyNatural Gas Checking GAS ConnectionsPropane/LP Open equipment shutoff valve see , Pressure Testing Heater Gas ConnectionsOperating Heater Manual Control Models For Your Safety Read Before LightingLighting Instructions Shutting Off Burner Only pilot stays lit Manual Lighting ProcedureTo Turn OFF GAS To Appliance Shutting Off HeaterThermostat Control Operation Pilot Flame Pattern Inpecting HeaterBurner Flame Pattern Cabinet Cleaning MaintenanceODS/PILOT and Burner Burner Pilot AIR InletObserved Problem Possible Cause Remedy TroubleshootingReplace burner orifice See Cleaning and Mainte Statement above Gas leak. See WarningGN30, GN30T WMN20, GWN20 SpecificationsGP30, GP30T Parts Under Warranty Service HintsTechnical Service Service Publications Replacement PartsIllustrated Parts Breakdown NJF 8C Parts ListGWN20T, GWP20T GWN30T, GWP30T Parts List Base KIT GA4550 AccessoriesEquipment Shutoff Valve GA5010 FAN Kits GA3250TParts Centrals Keep this Warranty Warranty InformationLimited Warranty VENT-FREE Residential GAS Heaters

GP30, GWN20T, GWN30T, GWN20, GWP20 specifications

Desa GWP20, GWP30T, GP30T, GN30T, and GP30 are advanced water heater models that stand out in the market for their efficiency, innovative technology, and user-friendly features. Each model is designed to cater to different consumer needs, offering reliable hot water solutions for residential and commercial applications.

The Desa GWP20 is a compact and efficient water heater that operates on a 20-gallon tank. Ideal for smaller households, it boasts fast heating capabilities and a durable construction that ensures longevity. Its user-friendly control panel allows for easy temperature adjustments, and its energy-saving mode helps reduce utility costs.

Moving up in capacity, the GWP30T features a 30-gallon tank, making it suitable for medium-sized households. This model incorporates a high-efficiency burner that maximizes heat output while minimizing gas consumption. With an upgraded insulation system, the GWP30T retains heat for longer periods, enhancing energy efficiency. The built-in diagnostics monitor performance, ensuring consistent operation and alerting users to any potential issues.

The GP30T is another 30-gallon model that emphasizes flexible installation options. It can be configured for various venting systems, making it adaptable for different home layouts. Its robust safety features, such as an automatic shut-off system, provide peace of mind for users. Additionally, the GP30T is equipped with a flame sensor for improved safety during operation.

For those seeking an efficient gas-powered unit, the GN30T delivers exceptional performance with a 30-gallon capacity. This model is designed to withstand the demands of larger households, featuring rapid recovery rates to provide a continuous supply of hot water. It utilizes advanced combustion technology that ensures efficient gas usage, striking the perfect balance between performance and energy costs.

Finally, the GP30 is a versatile water heater designed to meet diverse consumer needs. With a focus on sustainability, this model incorporates eco-friendly materials and technologies. The GP30 is packed with features that enhance its usability, such as customizable temperature settings, easy-to-read indicators, and a straightforward installation process.

In summary, Desa's GWP20, GWP30T, GP30T, GN30T, and GP30 water heaters are engineered for efficiency and reliability. Each model offers unique features tailored to specific user needs, from compact designs for smaller spaces to powerful systems for larger families. With an emphasis on modern technology and safety, Desa continues to be a leader in the water heating market.
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