Desa FAS-30BB, FA-20BB, FGH-30NGB, FAS-20BB Connecting to GAS Supply, Typical Inlet Pipe Diameters

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BLUE FLAME NATURAL GAS HEATER

INSTALLATION

Continued

CONNECTING TO GAS SUPPLY

WARNING: This appliance re- quires a 3/8" NPT (National Pipe Thread) inlet connection to the pressure regulator.

WARNING: A qualified service person must connect heater to gas supply. Follow all local codes.

WARNING: Never connect heater to private (non-utility) gas well. This gas is commonly known as wellhead gas.

IMPORTANT: Check gas line pressure be- fore connecting heater to gas line. Gas line pressure must be no greater than 14 inches of water. If gas line pressure is higher, heater regulator damage could occur.

CAUTION: Use only new, black iron or steel pipe. Inter- nally-tinned copper tubing may be used in certain areas. Check your local codes. Use pipe of large enough diameter to allow proper gas volume to heater. If pipe is too small, undue loss of pres- sure will occur.

Typical Inlet Pipe Diameters

FA-20BB,

3/8" or greater

FAS-20BB

 

FA-30BB,

1/2" or greater

FAS-30BB,

 

FGH-30NG

 

Installation must include a equipment shutoff valve,union,andplugged1/8"NPTtap. Locate NPT tap within reach for test gauge hook up. NPT tap must be upstream from heater (see Figure 13).

IMPORTANT: Install an equipment shutoff valve in an accessible location. The equip- ment shutoff valve is for turning on or shutting off the gas to the appliance.

Apply pipe joint sealant lightly to male threads. This will prevent excess sealant from going into pipe. Excess sealant in pipe could result in clogged heater valves.

 

3/8" NPT

 

 

Pipe Nipple

 

 

 

 

 

 

 

 

 

 

 

 

Tee Joint

Test

Reducer

Gauge

Bushing to

Connection *

 

 

1/8" NPT

 

 

 

 

 

1/8" NPT

 

 

 

Plug Tap

 

 

 

 

 

 

 

Tee

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Joint

Sediment

 

 

Pipe

 

 

Trap

 

 

 

 

Nipple

 

 

 

 

 

 

 

Cap

Figure 13 - Gas Connection

CAUTION: Use pipe joint seal- ant that is resistant to natural gas.

Install sediment trap in supply line as shown in Figure 13. Locate sediment trap where it is within reach for cleaning. Locate sediment trap where trapped matter is not likely to freeze. A sediment trap traps moisture and contaminants. This keeps them from going into heater con- trols. If sediment trap is not installed or is installed wrong, heater may not run properly.

IMPORTANT: Hold pressure regulator with wrench when connecting it to gas piping and/or fittings.

Pressure

Regulator

Heater

Cabinet

Ground Joint Union

Equipment

Shutoff

Valve *

Typical Inlet Pipe from Gas Meter (4" W.C. to 10.5" W.C. Pressure)

3" Minimum

*An CSA/AGA design-certified equipment shutoff valve with 1/8" NPT tap is an acceptable alternative to test gauge connection. Purchase the optional CSA/AGA design- certified equipment shutoff valve from your dealer. See Accessories, page 19.

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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 FRESH-AIR Flow for Heater Location AIR for Combustion VentilationDetermining if You Have a Confined or Unconfined Space Ventilation Air From Inside Building Ventilation AIRVentilation Air From Outdoors Locate heater where moving ve- hicle will not hit it InstallationInstallation Items Check GAS TypeInstalling Heater to Wall Installing Thermostat Sensing BulbAttaching Mounting Bracket To Wall Installing Bottom Mounting ScrewsPlacing Heater On Mounting Bracket 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 AccessoriesIllustrated Parts Breakdown ODS/Pilot AssemblyThermostat Models FAS-20BB FAS-30BB 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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