Desa FAS-3C, FA-5B, FA-3B, FAS-5C Connecting to GAS Supply, Typical Inlet Pipe Diameters

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INFRARED 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.

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.

CAUTION: Use pipe joint seal- ant that is resistant to liquid pe- troleum (LP) gas.

Install sediment trap in supply line as shown in Figure 14. Locate sediment trap where it is within reach for cleaning. Locate sedi- ment trap where trapped matter is not likely to freeze. A sediment trap traps moisture and contaminants. This keeps them from going into heater controls. 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 pip- ing and/or fittings.

WARNING: Never connect heater to private (non-utility) gas wells. 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-3B/FAS-3C

3/8" or greater

FA-5B/FAS-5C

1/2" or greater

Installation must include equipment shutoff valve, union, and plugged 1/8" NPT tap. Locate NPT tap within reach for test gauge hook up. NPT tap must be upstream from heater (see Figure 14).

Pressure

 

Regulator

 

Regulator

 

Bracket

 

Heater

 

3/8" NPT

 

Pipe Nipple

Cabinet

 

 

 

Ground Joint

 

 

Union

 

Tee Joint

 

Test

Reducer

Equipment

Gauge

Bushing to

Shutoff

Connection *

1/8" NPT

Valve *

 

1/8" NPT

Inlet Pipe From Gas

 

Meter (7" W.C. to

 

Plug Tap

 

10.5" W.C. Pressure)

 

 

 

Tee Joint

 

Sediment

Pipe Nipple

 

Trap

3" Minimum

 

Cap

 

Figure 14 - Gas Connection

*A 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 Infrared VENT-FREE Natural GAS Heater What to do if YOU Smell GASSafety Information Infrared Natural GAS HeaterLocal Codes Product FeaturesProduct Identification UnpackingUnusually Tight Construction Fresh AIR for Combustion and VentilationProducing Adequate Ventilation Confined and Unconfined SpaceDetermining FRESH-AIR Flow for Heater Location Fresh AIR for Combustion VentilationDetermining if You Have a Confined or Unconfined Space Ventilation Air From Inside Building Ventilation AIRVentilation Air From Outdoors Installing Thermostat Sensing Bulb InstallationInstallation Items Check GAS TypeRemoving Front Panel Of Heater Models FA-3B and FA-5B Installing Heater to WallMounting Bracket Methods For Attaching Mounting Bracket To WallAttaching Mounting Bracket To Wall Installing Bottom Mounting ScrewsPlacing Heater On Mounting Bracket Connecting to GAS Supply Typical Inlet Pipe DiametersPressure Testing Heater Gas Connections For Your Safety Read Before LightingPressure Testing Gas Supply Piping System Operating HeaterTo Select Heating Level Manual Lighting ProcedureLighting Instructions To Turn OFF GAS To ApplianceThermostat Models FAS-3C and FAS-5C Cleaning and Maintenance Inspecting BurnerTroubleshooting Observed Problem Possible Cause RemedyInfrared Natural GAS Heater Top Specifications Parts CentralsTechnical Service Replacement PartsService Hints AccessoriesIllustrated Parts Breakdown Burner Assembly ODS/Pilot AssemblyFA-3B Parts List KEY FA-3B DescriptionFA-5B KEY FA-5B Description ODS/Pilot Assembly Burner Assembly FAS-3CKEY FAS-3C Description QTY FAS-5C KEY FAS-5C Description QTY Warranty Information International

FAS-5C, FAS-3C, FA-3B, FA-5B specifications

Desa FA-3B, FAS-5C, FA-5B, and FAS-3C represent a significant evolution in the landscape of consumer electronics, particularly in the realm of audio systems and smart home technologies. Each model brings unique features and advancements, catering to varied user needs and preferences.

The Desa FA-3B stands out with its robust sound quality and sleek design. This model incorporates advanced acoustic engineering, ensuring clear highs and deep bass response. It features Bluetooth connectivity, allowing users to seamlessly connect their devices for wireless streaming. The user-friendly interface includes customizable equalizer settings, enabling audiophiles to fine-tune their listening experience. Furthermore, the FA-3B is designed to integrate easily with existing smart home ecosystems, supporting voice commands via popular virtual assistants.

FAS-5C, on the other hand, is geared toward the immersive audio experience. It features surround sound technology, perfect for home theater setups. Users can enjoy a dynamic audio landscape, whether it's for movies, music, or gaming. The FAS-5C is equipped with multiple input options, including HDMI and optical audio, ensuring compatibility with a wide range of devices. Additionally, its aesthetic design blends well with modern interiors, making it a stylish addition to any home.

Moving on to the FA-5B, this model is known for its portability and versatility. The compact design allows for easy transport, making it ideal for outdoor gatherings or travel. The FA-5B does not compromise on sound quality despite its size, featuring a powerful battery that supports hours of playback time. Its rugged exterior provides durability, ensuring it can withstand various environments. The built-in voice assistant compatibility and touch controls enhance the user experience, offering convenience for on-the-go lifestyles.

Lastly, the FAS-3C is designed for those who crave a premium listening experience at home. It features high-definition audio playback, ensuring that even the subtlest nuances in music are captured accurately. The model supports high-resolution audio formats, appealing to audiophiles who demand the best quality. Advanced wireless technologies enable multi-room audio capability, allowing users to synchronize sound throughout their homes. The FAS-3C's elegant design is complemented by customizable lighting features, adding an element of personalization and ambiance.

In summary, Desa FA-3B, FAS-5C, FA-5B, and FAS-3C each bring distinctive features, technologies, and characteristics, catering to diverse audio preferences and lifestyles. Whether for home entertainment or portable listening, these models exemplify modern innovation in audio technology.
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