Desa FA-30BB, FAS-30BB, FA-20BB, FGH-30NGB, FAS-20BB Inspecting Burner, Cleaning and Maintenance

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BLUE FLAME NATURAL GAS HEATER

INSPECTING

BURNER

Check pilot flame pattern and burner flame pattern often.

PILOT FLAME PATTERN

Figure 20 shows a correct pilot flame pattern. Figure 21 shows an incorrect pilot flame pattern. The incorrect pilot flame is not touch- ing the thermocouple. This will cause the thermocouple to cool. When the thermo- couple cools, the heater will shut down.

If pilot flame pattern is incorrect, as shown in Figure 21

•turn heater off (seeTo Turn Off Gas to Ap- pliance, page 12 for thermostat models or page 13 for non-thermostat models)

•seeTroubleshooting, pages 15 through 17

Pilot Burner

Thermocouple

Figure 20 - Correct Pilot Flame Pattern

Pilot Burner

Thermocouple

Figure 21 - Incorrect Pilot Flame Pattern

BURNER FLAME PATTERN

Figure 22 shows a correct burner flame pattern. Figure 23 shows an incorrect burner flame pattern. 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 23

•turn heater off (seeTo Turn Off Gas To Ap- pliance, page 12 for thermostat models or page 13 for non-thermostat models)

•seeTroubleshooting, pages 15 through 17

WARNING: If yellow tipping occurs, your heater could pro- duce increased levels of carbon monoxide. If burner flame pattern shows yellow tipping, follow in- structions at bottom of this page.

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.

1/2 Glass

Height

Figure 22 - Correct Burner Flame Pattern

Yellow Tipping

1/2 Glass

Height

Figure 23 - Incorrect Burner Flame Pattern

CLEANING AND MAINTENANCE

WARNING: Turn off heater and let cool before cleaning.

CAUTION: You must keep control areas, burner, and circu- lating air passageways of heater clean. Inspect these areas of heater before each use. Have heater inspected yearly by a quali- fied service person. Heater may need more frequent cleaning due to excessive lint from carpeting, bedding material, pet hair, etc.

ODS/PILOT AND BURNER

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

CLEANING BURNER PILOT AIR INLET HOLE

We recommend that you clean the unit every 2,500hoursofoperationoreverythreemonths.

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 compressed air in a can. You can use a vacuum cleaner in the blow position. If using compressed 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.

Clean the pilot assembly also. A yellow 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 24). With the unit off, lightly blow air through the air inlet hole. You may blow through a drinking straw if compressed air is not available.

Pilot Air Inlet

Hole

Pilot Assembly

Figure 24 - Pilot Inlet Air Hole

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 cabi- net to remove dust.

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Contents Blue Flame VENT-FREE Natural GAS Heater What to do if YOU Smell GASSafety Information Blue Flame Natural GAS HeaterLocal Codes Product FeaturesProduct Identification UnpackingUnusually Tight Construction AIR for Combustion and VentilationProviding Adequate Ventilation Confined and Unconfined SpaceDetermining if You Have a Confined or Unconfined Space AIR for Combustion VentilationDetermining FRESH-AIR Flow for Heater Location Ventilation Air From Outdoors Ventilation AIRVentilation Air From Inside Building Locate heater where moving ve- hicle will not hit it InstallationInstallation Items Check GAS TypeInstalling Heater to Wall Installing Thermostat Sensing BulbPlacing Heater On Mounting Bracket Installing Bottom Mounting ScrewsAttaching Mounting Bracket To Wall Connecting to GAS Supply Typical Inlet Pipe DiametersOperating HeaterTo Turn OFF GAS To Appliance Manual Lighting ProcedureOperating Heater Thermostat Control OperationLighting Instructions What to do if YOU Smell GASCleaning and Maintenance Inspecting BurnerTroubleshooting Observed Problem Possible Cause RemedyMaintenance, Top Gas leak. See Warning statement atSpecifications Parts CentralsTechnical Service Replacement PartsService Hints AccessoriesThermostat Models FAS-20BB FAS-30BB ODS/Pilot AssemblyIllustrated Parts Breakdown Parts List KEY Part Number for FAS-20BB FAS-30BB DescriptionNON-THERMOSTAT Models FA-20BB, FA-30BB, FGH-30NGB Parts Available not Shown Warranty Information

FA-30BB, FAS-20BB, FGH-30NGB, FA-20BB, FAS-30BB specifications

Desa FGH-30NGB, FA-20BB, FAS-30BB, FAS-20BB, and FA-30BB represent a compelling lineup of advanced heating solutions, engineered to cater to diverse consumer needs for efficient heating and functionality. Each model stands out with unique features and technologies that set them apart in the competitive market.

The FGH-30NGB model is particularly commendable for its innovative design and energy efficiency. It integrates advanced gas burner technology, which ensures optimal heat output while minimizing energy consumption. This model is equipped with an automatic ignition system, adding convenience for users who prioritize ease of use. Additionally, the FGH-30NGB features a robust safety mechanism, including automatic shut-off in case of overheating, which enhances user confidence.

In contrast, the FA-20BB model showcases versatility with its multifaceted heating settings. Ideal for both residential and commercial environments, this model incorporates state-of-the-art electronic controls that allow users to adjust temperatures with precision. The FA-20BB also prioritizes user comfort through its Quiet Mode operation, which significantly reduces noise during heating cycles, making it suitable for quiet settings like bedrooms and libraries.

The FAS-30BB takes technology a step further with its integration of smart features. This model is Wi-Fi enabled, allowing users to control the heater remotely through a mobile app. This capability is particularly advantageous for tech-savvy consumers who wish to manage their heating systems efficiently from anywhere. Moreover, the FAS-30BB boasts a sleek, modern design, making it an aesthetic addition to any space.

Meanwhile, the FAS-20BB offers a compact design without compromising heating power. Ideal for smaller spaces, it combines efficiency with a lightweight build, making it easy to move when needed. Its user-friendly digital interface provides valuable feedback and allows users to easily monitor performance.

Finally, the FA-30BB model caters to those needing a high-performance solution. With dual heating modes, this model stands out in versatility and effectiveness. It utilizes advanced thermal insulation technologies that enhance heat retention, ensuring maximum efficiency.

In conclusion, the Desa FGH-30NGB, FA-20BB, FAS-30BB, FAS-20BB, and FA-30BB models present a broad spectrum of features and technologies that address various heating requirements. From smart technology integration to energy-efficient designs, each model is crafted to offer performance, reliability, and user satisfaction in any setting.
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