Desa VS18NRA Installing Damper Clamp Accessory for Vented Operation, Installation Items Needed

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DESA INTERNATIONAL

UNVENTED NATURAL GAS LOG HEATER

INSTALLATION

Continued

INSTALLING DAMPER CLAMP ACCESSORY FOR VENTED OPERATION

Note: When used as a vented heater, appli- ance must be installed only in a solid-fuel burning fireplace with a working flue and constructed of noncombustible material.

If your heater is a manually-controlled model, you may use this heater as a vented product. There are three reasons for operat- ing your heater in the vented mode.

Damper Clamp

 

Damper

Damper

Damper

Clamp

 

Damper

Masonry Fireplace

Manufactured Fireplace

Figure 10 - Attaching Damper Clamp

1.The fireplace does not meet the clear- ance to combustibles requirements for vent-free operation.

2.State or local codes do not permit vent- free operation.

3.You prefer vented operation.

If reasons number 1 or 2 above apply to you, you must permanently open chimney flue damper. You must install the damper clamp accessory (to order, see Accessories, page 25). This will insure vented operation (see Figure 10). The damper clamp will keep damper open. Installation instructions are included with clamp accessory.

See chart below for minimum permanent flue opening you must provide. Attach damper clamp so the minimum permanent flue opening will be maintained at all times.

Area of Various Standard

Round Flues

Diameter (ins.)

Area (sq. ins.)

 

 

 

5"

 

20 sq. inches

6"

 

29 sq. inches

7"

 

39 sq. inches

8"

 

51 sq. inches

 

 

 

Chimney

Minimum Permanent

Height (ft.)

Flue Opening (sq. ins.)

 

 

 

6' to 15'

 

39 sq. inches

15' to 30'

 

2.9 sq. inches

INSTALLING HEATER BASE ASSEMBLY

CAUTION: Do not remove the metal data plates attached to the heater base assembly. The data plates contain important warranty information.

WARNING: You must secure this heater to fireplace floor. If not, heater will move when you adjust controls. Moving heater may cause a gas leak.

WARNING: If installing in a sunken fireplace, special care is needed. You must raise the fireplace floor to allow access to heater control panel. This will insure adequate air flow and guard against sooting. Raise

fireplace floor with noncombustible material. Make sure material is secure.

CAUTION: Do not pick up heater base assembly by burn- ers. This could damage heater. Only handle base assembly by grates.

IMPORTANT: Make sure the heater burn- ers are level. If heater is not level, heater will not work properly.

Installation Items Needed

•hardware package (provided with heater)

•approved flexible gas hose (not provided) (if allowed by local codes)

•sealant (resistant to propane/LP gas, not provided)

•electric drill with 3/16" drill bit

Note: Install optional GHRCT Receiver and Hand-Held Remote Control Kit (see Accessories, page 25) before installing gas log heater. See installation instructions in- cluded with the kit.

1.Apply pipe joint sealant lightly to male threads of gas fitting. Connect approved flexible gas hose to inlet side of gas control (see Figure 11, page 11).

2.Position heater base assembly in fire- place.

3.Mark screw locations through holes in front panel of base (see Figure 12, page 11). If installing in a brick-bottom fire- place, mark screw locations in mortar joint of bricks.

4.Remove heater base from fireplace.

5.Drill holes at marked locations using 3/16" masonry drill bit.

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Contents Desa International What to do if YOU Smell GASSafety Information Desa International Unvented Natural GAS LOG HeaterLocal Codes Product Identification FeaturesOptional Remote Control Accessories 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 Building Ventilation AIRVentilation Air From Inside Ventilation Air From OutdoorsCheck GAS Type InstallationInstallation Clearances Vent-Free Operation OnlyIf Using Mantel Minimum Noncombustible Material ClearancesMantel Clearances Floor ClearancesInstallation Items Needed Installing Damper Clamp Accessory for Vented OperationInstalling Heater Base Assembly Area of Various Standard Round FluesConnecting to GAS Supply Attaching Flexible Gas Hose to Heater Gas RegulatorPressure Testing gas Supply Piping system Pressure Testing Heater Gas ConnectionsChecking GAS Connections Installing Logs Operating Heater For Your Safety Read Before LightingLighting Instructions Shutting Off Heater Manual Lighting ProcedureTo Turn OFF GAS To Appliance Shutting Off Burners Only pilot stays litGhrc Operation Optional Remote OperationThermostat Control Operation Ghrct OperationPilot Flame Pattern Inspecting BurnersFront Burner Flame Pattern Cleaning and Maintenance Replacement PartsTroubleshooting Observed Problem Possible Cause RemedySee Wiring Diagram, Gas leak. See Warning statement Illustrated Parts BREAKDOWN4 Variable Control CFS18NRA, VS18NRA VS24NRA, VS30NRAParts List VS24NRA VS30NRA Description QTYWiring Diagram SpecificationsTechnical Service Service HintsAccessories Warranty Information International

VS30NRA, VS18NRA, VS24NRA, CFS18NRA specifications

Desa, a well-known manufacturer in the heating and light industry, has developed several innovative products: the VS24NRA, VS30NRA, CFS18NRA, and VS18NRA. Each of these models showcases unique features, advanced technologies, and characteristics designed to cater to diverse consumer needs.

Starting with the VS24NRA, this unit is celebrated for its efficient heating capabilities. It boasts a powerful design, ideal for medium-sized spaces. Featuring an advanced combustion system, it ensures optimal fuel usage, translating to lower running costs and reduced environmental impact. The VS24NRA is equipped with an adjustable thermostat, allowing users to maintain desired temperatures easily. Its sleek and modern design allows it to fit seamlessly into various interior environments.

Next, the VS30NRA takes heating efficiency a step further. With a higher BTU output, it is suitable for larger spaces requiring more substantial heating solutions. This model incorporates cutting-edge heat distribution technology, ensuring even warmth throughout the room. Additionally, the VS30NRA is built with premium materials that enhance its durability, making it a long-term investment for homeowners. Its electronic ignition system contributes to convenience, allowing for quick and hassle-free startups.

The CFS18NRA stands out with its dual functionality by combining both heating and cooking capabilities. This model is ideal for those looking to maximize utility in smaller spaces. It features a contemporary design and compact build, making it an excellent addition to cabins, tiny homes, or other limited areas. The CFS18NRA utilizes infrared heating technology, which warms objects directly rather than relying solely on heating the air, creating a cozy atmosphere with minimal energy consumption.

Finally, the VS18NRA offers a balance between size and efficiency. It is tailored for modest environments, providing consistent warmth without overwhelming the space. The VS18NRA comes equipped with a user-friendly control panel, giving users precise control over settings. Its portability makes it a versatile choice for different rooms in a home or for outdoor gatherings.

In summary, Desa’s range, including the VS24NRA, VS30NRA, CFS18NRA, and VS18NRA, caters to a variety of heating needs. Their use of innovative technologies and emphasis on efficiency showcases Desa’s commitment to quality and customer satisfaction. Each model presents distinct features that make them suitable for a range of applications, ensuring homeowners can find the right solution for their heating needs.
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