Desa INTERNATIONAL UNVENTED (VENT-FREE) GAS LOG HEATER External Regulator With Vent Pointing Down

Page 13

INSTALLATION

Connecting To Gas Supply (Cont.)

13

INSTALLATION

Continued

Installation must include an 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 or 15, depending on your model).

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

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

WARNING: Use pipe joint sealant that is resistant to liquid petroleum (LP) gas.

We recommend that you install a sediment trap in supply line as shown in Figure 14 or 15, depending on your model. Locate sediment trap where it is within reach for cleaning. Install in piping system between fuel supply and heater. 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 controls. If sediment trap is not installed or is installed wrong, heater may not run properly.

CAUTION: Avoid damage to regulator. Hold gas regulator with wrench when connecting it to gas piping and/or fittings (Thermostat-Controlled Mod- els Only).

CAUTION: Avoid damage to gas control. Hold gas control with wrench when connecting it to gas piping and/or fittings (Remote-Ready Models Only).

External Regulator

Propane/LP

Supply Tank

Vent Pointing Down

Figure 13 - External Regulator With Vent Pointing Down

 

CSA Design-Certified Equipment

PROPANE/LP -

Shutoff Valve With 1/8" NPT Tap*

From External

 

Regulator

 

(11" W.C.**

Approved Flexible

to 14" W.C.

Gas Hose (if allowed

Pressure)

by local codes)

 

NATURAL -

 

From Gas

3" Minimum

Meter

(5" W.C.**

 

to 10.5" W.C.

 

Pressure)

Gas Regulator

 

Tee Cap Pipe

Joint Nipple

Sediment Trap

Figure 14 - Gas Connection (Thermostat-Controlled Models Only)

 

 

CSA Design-Certified Equipment

PROPANE/LP -

 

Shutoff Valve With 1/8" NPT Tap*

 

 

From External

 

 

Regulator

 

Approved Flexible

(11" W.C.**

 

Gas Hose (if allowed

to 14" W.C.

 

by local codes)

Pressure)

 

 

NATURAL -

 

 

From Gas

 

 

Meter

 

 

(5" W.C.**

3" Minimum

to 10.5" W.C.

Pressure)

 

 

Tee

Pipe

 

Joint

Nipple Cap

Gas Control

 

 

Valve

Sediment Trap

 

Figure 15 - Gas Connection (Remote-Ready Models Only)

*Purchase the optional CSA design-certified equipment shutoff valve from your dealer. See Accessories, page 38.

**Minimum inlet pressure for purpose of input adjustment.

For..com

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Contents What to do if YOU Smell GAS International OWNER’S Operation and Installation ManualSafety Information Table of ContentsSafety Information Product Identification Optional Remote Control AccessoriesLocal Codes UnpackingAIR for Combustion and Ventilation Product FeaturesDetermining if You Have a Confined or Unconfined Space Determining FRESH-AIR Flow for Heater LocationVentilation Air From Inside Building Ventilation AIRVentilation Air From Outdoors Check GAS Type InstallationSee Between 8 Minimum Noncombustible Material ClearancesMantel Clearances Determining Minimum Mantel Clearance When Using a HoodFloor Clearances Determining Minimum Mantel ClearanceInstalling Heater Base Assembly Installing Damper Clamp Accessory for Vented OperationInstallation Items Needed Remote-Ready Models OnlyConnecting to GAS Supply External Regulator With Vent Pointing Down Pressure Testing Heater Gas Connections Pressure Testing gas Supply Piping systemChecking GAS Connections Installing Log #2 Model CGX3930NT Shown Installing LogsInstalling Log #3 Model VGX30NT Shown Models LGX3924NT and LGX3924PT Installing Log #3 Model LGX3924NT ShownOperating Heater Attaching Grate to Base AssemblyAdding Lava Rock Lighting InstructionsShutting Off Heater To Turn OFF GAS to ApplianceShutting Off Burners Only pilot stays lit REMOTE-READY Models For Your Safety Read Before Lighting Manual Lighting ProcedureThermostat Control Operation Flame Thermostat Control Operation Optional Remote OperationGhrc Series Operation Ghrcta Series OperationPilot Flame Pattern Inspecting BurnersFront Burner Flame Pattern Cleaning Burner Injector Holder and Pilot AIR Inlet Hole Cleaning MaintenanceLogs Observed Problem Possible Cause Remedy TroubleshootingRefer to Air for Combustion and Venti Gas leak. See Warning statement Important Do not crimp capillary Optional Positioning of Thermostat Sensing BulbWiring Diagram SpecificationsService Hints Technical ServiceIllustrated Parts Breakdown Illustrated Parts BreakdownParts List Parts ListTHERMOSTAT-CONTROLLED VGX24NT, VGX24PT VGX30NT, VGX30PT29 Parts Available not Shown THERMOSTAT-CONTROLLEDCGX3924NR, CGX3924PR REMOTE-READY LGX3924NT, LGX3924PT KEY Part Number LGX3924NT LGX3924PT Description QTY Accessories Replacement PartsOwners Registration Form International For . .com Not a UPC

INTERNATIONAL UNVENTED (VENT-FREE) GAS LOG HEATER specifications

The Desa International Unvented (Vent-Free) Gas Log Heater stands as a remarkable solution for those seeking an efficient and aesthetically pleasing heating option for their homes. Recognized for its innovative design and advanced technology, this heater offers numerous benefits that cater to both functionality and style.

One of the main features of the Desa gas log heater is its vent-free design. This characteristic eliminates the need for ductwork or exhaust systems, allowing for easy installation in various locations, including living rooms, bedrooms, or recreational areas. With no external venting required, homeowners can enjoy increased flexibility in placement while saving on installation costs and labor. Moreover, the heater can fit seamlessly into existing fireplaces, creating a cozy ambiance without the need for traditional firewood.

Another standout feature of the Desa vent-free gas log heater is its exceptional energy efficiency. Utilizing infrared technology, the heater converts a high percentage of gas to heat, warming spaces quickly and reducing energy consumption. The unit is designed to operate with natural gas or propane, offering versatility depending on the homeowner's fuel preferences.

Safety is a top priority in the design of the Desa gas log heater. Equipped with an automatic shut-off system and an oxygen depletion sensor, the heater ensures secure operation by shutting down in case oxygen levels drop too low. This added safety feature provides peace of mind for families, allowing for safe use even during extended periods of operation.

Aesthetically, the Desa International gas log heater does not compromise on style. With an array of realistic log designs and finishes, homeowners can choose a heater that complements their interior decor perfectly. The unit’s flame effects mimic traditional wood-burning fires, enhancing the warm ambiance of any room.

In conclusion, the Desa International Unvented (Vent-Free) Gas Log Heater offers a unique combination of efficiency, safety, and aesthetics. Its vent-free design allows for flexible installation, while infrared heating technology ensures quick warmth and energy savings. Coupled with enhanced safety features and an attractive appearance, this gas log heater provides a practical and stylish heating solution for any home.
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