Desa UNVENTED (VENT-FREE) NATURAL GAS LOG HEATER installation manual Connecting to GAS Supply

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INSTALLING

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CONNECTING TO GAS SUPPLY

NOTICE

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

Installation Items Needed

Before installing heater, make sure you have the items listed below.

•

piping (check local codes)

•

sediment trap

•

sealant (resistant to LP gas)

•

tee joint

•

manual shutoff valve *

•

pipe wrench

•test gauge connection *

*An A.G.A. design-certified manual shutoff valve with 1/8" NPT tap is an acceptable alternative to test gauge connection. Purchase the optional A.G.A. design-certified manual shutoff valve from your dealer. See Accessories, page 34.

WARNING

Never connect heater to private (non-utility) gas wells. This gas is commonly known as well-head gas.

CAUTION

Use only new, black iron or steel pipe. Internally-tinned copper tubing may be used in certain areas. Check your local codes. Use pipe of 1/2" diameter or greater to allow proper gas volume to heater. If pipe is too small, undue loss of pressure will occur.

Installation must include a manual shutoff valve, union, and plugged 1/8" NPT tap. Locate NPT tap within reach for test gauge hook up. NPT tap must be up- stream from heater (see Figure 13, page 18).

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 sealant that is resistant to liquid petroleum (LP) gas.

Install sediment trap in supply line as shown in Figure 13, page 18. 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 contami- nants. This keeps them from going into heater controls. If sediment trap is not installed or is installed wrong, heater may not run properly.

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Contents FLAME-MAX OWNER’S Operation and Installation ManualWhat to do if YOU Smell GAS Oak Log DesignContents Safety Information Information SafetyProduct Identification Local Codes FeaturesUnpacking ProductProviding Adequate Ventilation AIR for Combustion and VentilationUnusually Tight Construction Unconfined SpaceDetermining if You Have a Confined or Unconfined Space Determining AIR Flow for Heater LocationVentilation Air From Outdoors Ventilation AIRVentilation Air From Inside Building Check GAS Type InstallingTo Combustible Materials Minimum Fireplace ClearanceLOG Sizing Requirements Minimum Wall and Ceiling Clearances see FigureMinimum Non Combustible Material Clearances If Using Mantel Installing Attaching Damper Clamp Installing Damper Clamp Accessory for Vented OperationInstallation Items Needed Installing Heater Base AssemblyAttaching Flexible Gas Hose to Heater Gas Regulator Installation Items Needed Connecting to GAS SupplyGas Connection Checking GAS ConnectionsTest Pressures Equal To or Less Than 1/2 Psig Pressure Testing Heater Gas ConnectionsFor Standard Oak Log Model Installing LogsFor Premium Models Installing Premium One-Piece Log SetOperating Heater For Your Safety Read Before LightingVariable Control Operation Pilot Flame Pattern Operating Heater Inspecting BurnersQualified service person should service and repair heater Trouble ShootingODS/PILOT and Burner LogsTROUBLE- Shooting Maintenance,Refer to Air for Com Gas leak. See Warning Replacement Parts ServiceTechnical HintsIllustrated Parts Breakdown KEY Part Number for VYS18N VYS24N Description QTY Parts ListBirch Log Models VYD24N and VYBD24N KEY Part Number for VYD24N VYBD24N Description QTY Valve GA5010 AccessoriesHood GA6050 Hood GA6052103309 Keep this Warranty Warranty Information

UNVENTED (VENT-FREE) NATURAL GAS LOG HEATER specifications

The Desa Unvented (Vent-Free) Natural Gas Log Heater is an innovative heating solution that combines efficiency, comfort, and aesthetic appeal. Designed for those seeking a reliable and stylish way to heat their living spaces, this vent-free heater is ideal for any home setting.

One of the main features of the Desa Unvented Gas Log Heater is its ability to provide warmth without the need for external venting. This means it can be installed in a variety of locations, including areas without a traditional chimney or flue. The absence of vents not only simplifies installation but also maximizes design flexibility, allowing homeowners to enhance their existing decor with a beautiful gas log fireplace.

The heater utilizes advanced infrared heating technology, which ensures that radiant heat is emitted throughout the room. This method of heating is exceptionally efficient, as it warms up objects and people directly, rather than merely heating the air. Consequently, this results in faster heating times and greater comfort, especially during colder months.

Equipped with the latest safety features, the Desa Unvented Gas Log Heater includes an oxygen depletion sensor (ODS), which automatically shuts off the heater if oxygen levels drop too low. This feature guarantees peace of mind for users, ensuring that safety is prioritized without sacrificing comfort.

Another significant characteristic of this heater is its realistic log design, which mimics the look of traditional wood-burning fireplaces. The ceramic fiber logs are intricately detailed, providing an authentic and charming ambiance that enhances any room's aesthetic. This realistic flame effect not only adds to the visual appeal but also creates a cozy atmosphere perfect for gatherings with family and friends.

The heater is designed to operate efficiently with minimal maintenance. The adjustable thermostat allows for precise temperature control, ensuring that users can set their desired warmth level and maintain it effortlessly. Moreover, the unit is compatible with natural gas, making it an environmentally friendly option that reduces the carbon footprint compared to traditional heating methods.

In summary, the Desa Unvented Natural Gas Log Heater is an exceptional heating option that combines elegance, safety, and performance. With its vent-free design, advanced heating technology, realistic aesthetics, and user-friendly features, this heater is a perfect choice for those looking to create a warm and inviting environment in their homes.
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