Desa GWP30T, GWP20T, GWN20T, WMN20 Inpecting Heater, Pilot Flame Pattern, Burner Flame Pattern

Page 18

INPECTING HEATER

Check pilot flame pattern and burner flame pat- tern often.

PILOT FLAME PATTERN

Figure 23 shows a correct pilot flame pattern. Fig- ure 24 shows an incorrect pilot flame pattern. The incorrect pilot flame is not touching the thermo- couple. 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 Fig- ure 24

•turn heater off (see To Turn Off Gas to Appli- ance, page 16 or 17)

•see Troubleshooting, pages 20 through 24 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.

Thermocouple

Blue Flame

Pilot Burner

Figure 23 - Correct Pilot Flame Pattern

Thermocouple

Yellow Flame

Pilot

Burner

Figure 24 - Incorrect Pilot Flame Pattern

BURNER FLAME PATTERN

WARNING: If yellow tipping occurs, your heater could pro- duce increased levels of carbon monoxide.

NOTICE: Do not mistake orange flames with yellow tipping. Dirt or other fine particles enter the heater and burn causing brief patches of orange flame.

Figure 25 shows a correct burner flame pattern. Figure 26 shows an incorrect burner flame pat- tern. The incorrect burner flame pattern shows yellow tipping of the flame. It also shows the flame higher than 1/2 the glass panel height.

If burner flame pattern is incorrect, as shown in Figure 26

•turn heater off (see To Turn Off Gas To Appli- ance, page 16 or 17)

•see Troubleshooting, pages 20 through 43

Blue

Flame

1/2 Glass

Height

Figure 25 - Correct Burner Flame Pattern

Yellow

Tipping

1/2 Glass

Height

Figure 26 - Incorrect Burner Flame

Pattern

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Contents What to do if YOU Smell GAS Table of Contents Safety Information Product Identification Product FeaturesLocal Codes UnpackingUnusually Tight Construction AIR for Combustion VentilationProviding Adequate Ventilation Confined and Unconfined SpaceDetermining FRESH-AIR Flow for Heater Location Determining if You Have a Confined or Unconfined SpaceCheck GAS Type InstallationVentilation AIR Ventilation Air From Inside BuildingInstallation Items Locating HeaterInstalling Heater to Wall 20,000 Btu/Hr Models Attaching To Wall Anchor MethodPlacing Heater On Mounting Bracket Mounting Heater to Floor with Optional Floor KIT Installing Bottom Mounting ScrewsMounting Base Feet to Floor Where required by local code Mounting Base Feet to HeaterConnecting to GAS Supply Typical Inlet Pipe DiametersChecking GAS Connections Natural GasPropane/LP Pressure Testing Heater Gas Connections Open equipment shutoff valve see ,Manual Control Models For Your Safety Read Before Lighting Operating HeaterLighting Instructions Shutting Off Heater Manual Lighting ProcedureTo Turn OFF GAS To Appliance Shutting Off Burner Only pilot stays litThermostat Control Operation Inpecting Heater Pilot Flame PatternBurner Flame Pattern Burner Pilot AIR Inlet Cleaning MaintenanceODS/PILOT and Burner CabinetTroubleshooting Observed Problem Possible Cause RemedyReplace burner orifice See Cleaning and Mainte Gas leak. See Warning Statement aboveSpecifications GN30, GN30T WMN20, GWN20GP30, GP30T Service Publications Replacement Parts Service HintsTechnical Service Parts Under WarrantyIllustrated Parts Breakdown Parts List NJF 8CGWN20T, GWP20T GWN30T, GWP30T Parts List FAN Kits GA3250T AccessoriesEquipment Shutoff Valve GA5010 Base KIT GA4550Parts Centrals Warranty Information Keep this WarrantyLimited 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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