Installation

Continued

WARNING: This appliance is equipped for (natural or pro- pane/LP) gas. Field conversion is not permitted.

Installation and Clearances

The charts in Figure 2 indicate technical information regarding the installation of your gas log set. Please make sure that all of the specifications shown are applicable before installation is attempted.

MINIMUM FIREBOX SIZES

MODEL

FRONT WIDTH

BACK WIDTH*

DEPTH

HEIGHT

 

 

 

 

 

 

 

 

 

VTD-18NV-JHB

28"

16"

14"

18"

VTD-18PV-JHB

VTD-24NV-JHB

29 3/4"

20"

15 1/2"

18"

VTD-24PV-JHB

 

 

 

 

VTD-30NV-JHB

36"

27"

18"

18"

VTD-30PV-JHB

*At depth indicated

BURNER ORIFICE

LOG

NATURAL

PROPANE/LP

SIZE

INCHES NO.

INCHES

NO.

18"

0.1495

25

0.0935

42

 

24"

0.1570

22

0.0980

40

 

30"

0.1660

19

0.1015

38

 

 

 

 

 

 

 

 

 

 

 

 

SPECIFICATIONS (W.C.)

 

 

 

FUEL INLET PRESSURE

MANIFOLD

 

 

 

 

MIN.

MAX.

PRESSURE

 

 

 

 

 

 

 

 

 

 

NG

 

5"

10.5"

3.5

 

 

 

LP

 

11"

14"

10

 

 

Figure 2 - Technical Information Charts

FLUE OPENING SPECIFICATIONS

Note: This vented appliance must be installed only in a solid-fuel burning fireplace constructed of noncombustible material. The fireplace must include a flue and venting system with the mini- mum openings shown in Figure 3.

 

 

 

MinIMUM

 

 

Btu

Vent

Model

Burner

Input

Opening

VTD-18NV-JHB

18" Ramp

59,000

8" dia.

VTD-18PV-JHB

VTD-24NV-JHB

24" Ramp

69,000

8" dia.

VTD-24PV-JHB

VTD-30NV-JHB

30" Ramp

74,000

8" dia.

VTD-30PV-JHB

 

 

 

Figure 3 - Specifications

VENTING SPECIFICATIONS FOR INSTALLATION

The fireplace chimney flue and vent must be draft- ing properly. To check the vent for proper drafting: Light a tightly rolled newspaper on one end and place it at the inside front edge of the fireplace. Observe the smoke and be sure the vent is properly drawing it up the chimney. If the smoke spills out into the room, extinguish the flame and remove any obstruction until proper venting is achieved.

The chimney flue must have a minimum free air opening of 43" during operation of this log set. A damper clamp is provided to fix the damper in position.

The minimum flue sizes shown in Figure 2 are based on a 6' chimney height using round pipe. Your minimum flue size will vary based on input rate and chimney height. Refer to the National Fuel Gas Code ANSI Z223.1/NFPA 54, Section 6.6, for details.

Installing Damper Clamp

Secure the damper stop clamp to the edge of the damper as shown in Figure 4. If for any reason this clamp doesn't work on your fireplace, another suit- able clamp or permanent stop must be installed, or the damper blade must be cut or removed.

Damper

Clamp

Damper

Damper

Clamp

DamperDamper

Masonry Manufactured

FireplaceFireplace

Figure 4 - Attaching Damper Clamp



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Desa VTD-30NV-JHB Installation and Clearances, Flue Opening Specifications, Venting Specifications for Installation