Desa VFN24R Installing Damper Clamp Accessory for Vented Operation, Installation Items Needed

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FIREPLACE MANUFACTURERS INC.

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 24). 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'

 

29 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 non- combustible 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 FHRCT or FHRCT Receiver and Hand-Held Remote Control Kit (see Accessories, pages 24) before in- stalling gas log heater. See installation in- structions included 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.Locate two masonry screws in hard- ware package.

3.Position heater base assembly in fire- place.

4.Place logs in their proper position on heater base.

5.Center heater base and logs front-to- back and side-to-side in fireplace.

6.Carefully remove logs without moving heater base.

7.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.

8.Remove heater base from fireplace.

9.Drill holes at marked locations using 3/16" masonary drill bit.

10.Attach base to fireplace floor using masonry screws (in hardware package).

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105072

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Contents Unvented VENT-FREE Natural GAS LOG Heater What to do if YOU Smell GASSafety Information Fireplace Manufacturers INC Unvented Natural GAS LOG HeaterProduct Identification Local Codes Product FeaturesUnpacking Unusually 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 OutdoorsInstallation Check GAS TypeIf Using Mantel Minimum Noncombustible Material ClearancesFloor Clearances Determining Minimum Mantel Clearance When Using a HoodMantel Clearances Determining Minimum Mantel ClearanceInstallation Items Needed Installing Damper Clamp Accessory for Vented OperationInstalling Heater Base Assembly Area of Various Standard Round FluesConnecting to GAS Supply Gas supply. Follow all local codesPressure Testing Heater Gas Connections Pressure Testing gas Supply Piping systemChecking GAS Connections Installing Logs Installing Front Log #1Operating Heater For Your Safety Read Before LightingLighting Instructions To Turn OFF GAS to Appliance Manual Lighting ProcedureOptional Remote Operation Inspecting Burners Pilot Flame PatternFront Burner Flame Pattern Cleaning and MaintenanceCleaning Burner Injector Holder and Pilot AIR Inlet Hole LogsTroubleshooting Observed Problem Possible Cause RemedySee Wiring Diagram, Gas leak. See Warning statement Replacement Parts SpecificationsWiring Diagram Service HintsIllustrated Parts Breakdown VFN18R VFN24R VFN30RParts List KEY Part Numbers VFN18R VFN24R VFN30R Description QTYAccessories 105072 Warranty Information

VFN24R, VFN18R, VFN30R specifications

Desa VFN18R, VFN24R, and VFN30R are a series of innovative heating solutions designed to meet varying heating needs while offering efficiency and reliability. Each model in the VFN range has unique features tailored to residential and commercial applications, contributing to versatile heating solutions.

One of the main characteristics of the VFN series is their impressive heating capacities. The VFN18R model is designed to deliver up to 18,000 BTU/hour, making it suitable for medium-sized spaces. The VFN24R, with its 24,000 BTU/hour output, is ideal for larger areas where more substantial heating is required. Finally, the VFN30R boasts an output of 30,000 BTU/hour, making it a powerful option for substantial heating demands, whether in warehouses, workshops, or expansive living spaces.

These models incorporate advanced technologies to maximize efficiency and performance. Each unit features a high-efficiency heat exchanger designed to produce a more significant amount of heat with lower fuel consumption. This not only translates into cost savings for the user but also reduces environmental impact by minimizing emissions.

In addition, the VFN series is built with a user-friendly interface, making operation straightforward. The units often include programmable thermostats, allowing users to set desired temperatures and schedules, optimizing energy consumption based on specific heating needs. Some models also come with remote control capabilities, offering added convenience.

Safety is a top priority for the VFN models. They come equipped with safety features such as an automatic shut-off system, which activates in case of overheating or malfunction. This contributes to peace of mind, especially in environments with high activity levels or sensitive materials.

The design of the VFN series also enhances their usability and adaptability. These units are compact and can be easily mounted on walls or placed in corners without taking up excessive space. Their aesthetic design allows them to blend seamlessly into different settings, from modern homes to traditional establishments.

In summary, the Desa VFN18R, VFN24R, and VFN30R are versatile heating solutions combining efficiency, safety, and ease of use. With varied heating capacities tailored for different needs and advanced technologies that enhance performance, these models stand out as reliable options for anyone seeking effective heating solutions. Whether for residential comfort or commercial utility, the VFN series delivers on multiple fronts.
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