Vermont Casting RFSDV24, RFSDV34 User Manual

INSTALLER/CONSUMER SAFETY INFORMATION

PLEASE READ THIS MANUAL BEFORE INSTALLING AND USING APPLIANCE

WARNING!

IF THE INFORMATION IN THIS MANUAL IS NOT FOLLOWED EXACTLY, A FIRE OR EXPLOSION MAY RESULT CAUSING PROPERTY DAMAGE, PERSONAL INJURY OR LOSS OF LIFE.

FOR YOUR SAFETY Installation and service must be performed by a qualified installer, service agency or the gas supplier.

WHAT TO DO IF YOU SMELL GAS:

•Do not try to light any appliance.

•Do not touch any electric switch; do not use any phone in your building.

•Immediately call your gas supplier from your neighbor’s phone. Follow the gas suppliers instructions.

•If you cannot reach your gas supplier call the fire department.

DO NOT STORE

OR USE GASOLINE OR OTHER FLAMMABLE VAPORS AND LIQUIDS IN THE VICINITY OF THIS OR ANY OTHER APPLIANCE.

Freestanding Direct Vent

Fireplace

Models: RFSDV24, RFSDV34

Installation Instructions and

Homeowner’s Manual

INSTALLER: Leave this manual with the appliance. CONSUMER: Retain this manual for future reference.

10003550 6/08 Rev. 6

RFSDV24/34 Freestanding Direct Vent Gas Fireplace

Table of Contents

PLEASE READ THE INSTALLATION & OPERATING INSTRUCTIONS BEFORE USING THIS APPLIANCE.

Thank you and congratulations on your purchase of a Vermont Castings fireplace. IMPORTANT: Read all instructions and warnings carefully before starting installation. Failure to follow these

instructions may result in a possible fire hazard and will void the warranty.

Installation & Operating Instructions
General Information, Warnings, Cautions ...........................................................................	3
Requirements for the Commonwealth of Massachusetts....................................................	4
Fireplace Dimensions..........................................................................................................	5
Locating Your Fireplace.......................................................................................................	6
Clearance to Combustibles .................................................................................................	6
High Elevations ...................................................................................................................	6
Gas Inlet and Manifold Pressures .......................................................................................	6
Gas Specifications...............................................................................................................	6
Preparation..........................................................................................................................	6
Gas Line Installation............................................................................................................	6
Remote Switch Installation..................................................................................................	7
General Venting Information
General Venting Information-Termination Location ............................................................	8
General Information on Assembling Vent Pipes..................................................................	9
How to Use the Vent Graph...............................................................................................	10
Vertical Sidewall Applications & Installation ......................................................................	10
Below Grade Installations..................................................................................................13
Vertical Through-the-Roof Applications & Installations......................................................	14
Venting Components.........................................................................................................	16
Operating Instructions
Glass Information ..............................................................................................................	17
Window Frame Assembly Removal...................................................................................	17
Glass Cleaning..................................................................................................................	17
Log Set and Lava Rock Material Installation.....................................................................	17
Flame & Temperature Adjustment.....................................................................................	19
Flame Characteristics........................................................................................................	19
Lighting & Operating Instructions ......................................................................................	20
Instructions for RF Comfort Control Valve.........................................................................	21
Troubleshooting.................................................................................................................	25
Maintenance
Cleaning the Standing Pilot Control System .....................................................................	26
Replacement Parts ......................................................................................................................	27
Installation in Mobile Homes ......................................................................................................	30
Optional Accessories
Fan Kits .............................................................................................................................	31
Optional Gold Trim Kit .......................................................................................................	32
Optional Brass Trim Kit......................................................................................................	32
Remote Control Units........................................................................................................	32
Warranty .......................................................................................................................................	35
Energuide......................................................................................................................................	36

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10003550

RFSDV24/34 Freestanding Direct Vent Gas Fireplace

Installation & Operating Instructions

This gas fireplace should be installed by a qualified installer in accordance with local building codes and with current CSAB149.1 Installation codes for Gas Burning Appliances and Equipment. If the unit is being installed in a mobile home, the installation should comply with the current CAN/USA Z240.4 code. For USA Installations follow local codes and/or the current National Fuel Gas Code. ANSI Z223.1/NFPA 54.

FOR SAFE INSTALLATION AND OPERATION PLEASE NOTE THE FOLLOWING:

1 . This fireplace gives off high temperatures and should be located out of high traffic areas and away from furniture and draperies.

2.Children and adults should be alerted to the hazards of the high surface temperatures of this fireplace and should stay away to avoid burns or ignition of clothing.

3.CAUTION: Due to high glass surface temperature children should be carefully supervised when in the same room as fireplace.

4.Under no circumstances should this fireplace be modified. Parts removed for servicing should be replaced prior to operating this fireplace again.

5.Installation and any repairs to this fireplace must be performed by a qualified installer, service agency or gas supplier. A professional service person should be contacted to inspect the fireplace annually. More frequent cleaning may be required due to excess lint and dust from carpeting, bedding material, etc.

6.Control compartments, burners and air passages in this fireplace should be kept clean and free of dust and lint. Make sure that the gas valve and pilot light are turned off before you attempt to clean this fireplace.

7.The venting system (chimney) of this fireplace should be checked at least once a year and if needed your venting system should be cleaned.

8.Keep the area around your fireplace clear of combustible materials, gasoline and other flammable vapour and liquids. This fireplace should not be used as a dry-ing rack for clothing, nor should Christmas stockings or decorations be hung on or around the fireplace.

9.Under no circumstances should any solid fuels (wood, coal, paper or cardboard etc.) be used in this fireplace.

10.The flow of combustion and ventilation air must not be obstructed in any way.

11.When the fireplace is installed directly on carpeting, vinyl tile or any combustible material other than wood, this fireplace must be installed on a metal or wood panel extending the full width and depth of the fireplace.

12.This fireplace requires adequate ventilation and combustion air to operate properly.

13.This fireplace must not be connected to a chimney flue serving a separate solid fuel burning fireplace.

14.When the fireplace is not in use it is recommended that the gas control valve be left in the OFF position.

RFSDV24 / RFSDV34

Certified To

ANSI Z21.88-2005 / CSA 2.33-2005

Vented Gas Fireplace Heaters

This appliance may be installed in an aftermarket permanentlylocated,manufacturedhome ormobile home, where not prohibited by local codes.

This appliance is only for use with the type of gas indicated on the rating plate. This appliance is not convertibleforusewithothergases,unlessacertified kit is used.

ModelRFSDV34RMHcanbeinstalledinmanufactured (mobile) homes by OEM.

IMPORTANT:

PLEASE REVIEW THE FOLLOWING CAREFULLY

Remove any plastic from from parts before turning the fireplace ON.

It is normal for fireplaces fabricated of steel to give off some expansion and/or contraction noises during the start up or cool down cycle. Similar noises are found with your furnace heat exchanger or car engine.

It is not unusual for your gas fireplace to give off some odor the first time it is burned. This is due to the curing of the paint and any undetected oil from the manufacturing process.

Pleaseensurethatyourroomiswellventilated-open all windows.

Itisrecommendedthatyouburnyourfireplaceforatleast ten (10) hours the first time you use it. If the optional fan kit has been installed, place the fan switch in the “OFF” position during this time.

Proposition 65 Warning: Fuels used in gas, woodburning or oil fired appliances, and the products of combustion of such fuels, contain chemicals known to the State of California to cause cancer, birth defects and other reproductive harm.

California Health & Safety Code Sec. 25249.6

3

RFSDV24/34 Freestanding Direct Vent Gas Fireplace

Installation & Operating Instructions

Requirements for the Commonwealth of Massachusetts

All gas fitting and installation of this heater shall only be done by a licensed gas fitter or licensed plumber.

For all side wall horizontally vented gas fueled equipment installed in every dwelling, building or structure used in whole or in part for residential purposes, including those owned or operated by the Commonwealth and where the side wall exhaust vent termination is less than seven (7) feet above finished grade in the area of the venting, including but not limited to decks and porches, the following requirements shall be satisfied:

Installation of Carbon Monoxide Detectors

At the time of installation of the side wall horizontal vented gas fueled equipment, the installing plumber or gas fitter shall observe that a hard wired carbon monoxide detector with an alarm is installed on each additional level of the dwelling, building or structure served by the side wall horizontally vented gas fueled equipment. It shall be the responsibility of the property owner to secure the services of qualified licensed professionals for the installation of hard wired carbon monoxide detectors.

In the event that the side wall horizontally vented gas fueled equipment is installed in a crawl space or an attic, the hard wired carbon monoxide detector with alarm and battery back-up may be installed on the next adjacent floor level.

In the event that the requirements of this subdivision can not be met at the time of completion of installation, the owner shall have a period of thirty (30) days

to comply with the above requirements; provided, however, that during said thirty (30) day period, a battery operated carbon monoxide detector with an alarm shall be installed.

Approved Carbon Monoxide Detectors

Each carbon monoxide detector as required in accordance with the above provisions shall comply with NFPA 720 and ANSI/UL 2034 listed and IAS certified.

Signage

A metal or plastic identification plate shall be permanently mounted to the exterior of the building at a minimum height of eight (8) feet above grade directly in line with the exhaust vent terminal for the horizontally vented gas fueled heating appliance or equipment. The sign shall read, in print size no less than one-half (1/2) inch in size, “GAS VENT DIRECTLY BELOW, KEEP

CLEAR OF ALL OBSTRUCTIONS”.

4

Inspection

The state or local gas inspector of the side wall horizontally vented gas fueled equipment shall not approve the installation unless, upon inspection, the inspector observes carbon monoxide detectors and signage installed in accordance with the provisions of 248 CMR 5.08(2)(a)1 through 4.

Exemptions

The following equipment is exempt from 248 CMR 5.08(2)(a)1 through 4:

•The equipment listed in Chapter 10 entitled “Equipment Not Required To Be Vented” in the most current edition of NFPA 54 as adopted by the Board; and

•Product Approved side wall horizontally vented gas fueled equipment installed in a room or structure separate from the dwelling, building or structure used in whole or in part for residential purposes.

MANUFACTURER REQUIREMENTS

Gas Equipment Venting System Provided

When the manufacturer of Product Approved side wall horizontally vented gas equipment provides a venting system design or venting system components with the equipment, the instructions provided by the manufacturer for installation of the equipment and the venting system shall include:

•Detailed instructions for the installation of the venting system design or the venting system components; and

•A complete parts list for the venting system design or venting system.

Gas Equipment Venting System NOT Provided

When the manufacturer of a Product Approved side wall horizontally vented gas fueled equipment does not provide the parts for venting the flue gases, but identifies “special venting systems”, the following requirements shall be satisfied by the manufacturer:

•The referenced “special venting system” instructions shall be included with the appliance or equipment installation instructions; and

•The “special venting systems” shall be Product Approved by the Board, and the instructions for that system shall include a parts list and detailed installation instructions.

A copy of all installation instructions for all Product Approved side wall horizontally vented gas fueled equipment, all venting instructions, all parts lists for venting instructions, and/or all venting design instructions shall remain with the appliance or

equipment at the completion of the installation.

10003550

RFSDV24/34 Freestanding Direct Vent Gas Fireplace

Fireplace Dimensions

H

J

I

K

G

	D	B
		F

E

A

C

Fig. 1 Fireplace specifications and framing dimensions.

Ref.

RFSDV24

RFSDV34

A

23”

(584 mm)

26¹⁄ ”

(667 mm)

B

28³⁄ ”

(730 mm)

31¹⁄ ”

(800 mm)

C

16 ⁄ ”

(422 mm)

19³⁄ ”

(492 mm)

D

27³⁄ ”

(695 mm)

30”

(762 mm)

E

9¹⁄ ”

(241 mm)

10”

(254 mm)

F

13 ⁄ ”

(352 mm)

15¹⁄ ”

(394 mm)

G

4”

(102 mm)

4¹⁄ ”

(114 mm)

H

23”

(584 mm)

26¹⁄ ”

(667 mm)

I

11¹⁄ ”

(292 mm)

13¹⁄ ”

(333 mm)

J

16 ⁄ ”

(422 mm)

19¹⁄ ”

(495 mm)

K

6”

(152 mm)

6³⁄ ”

(162 mm)

10003550

5

RFSDV24/34 Freestanding Direct Vent Gas Fireplace

	Locating Your Fireplace
	12”
	(305 mm)
A		B	D
12” (305 mm)

C

E

FP1620

Fig. 2 Locate gas fireplace.

A)	Flat on wall*	B)	Room Divider*	C) Island
D)	Cross Corner	E)	Flat on wall corner

Note (Fig. 2): *(A) and (B) must maintain a 12” (305 mm) clearance between the wall and side glass of fireplace.

There is a minimum vertical rise required for the venting, which varies depending on the application. The maximum horizontal run also has restrictions. Before starting the installation, become familiar with venting instructions starting on Page 9.

Clearance to Combustibles

Top of Unit to Ceiling	............................... 36” (914 mm)
Appliance	0” (0 mm)
Back........................................................
Side...................................................	12” (305 mm)
Floor........................................................	0” (0 mm)
Corner.............................	0” (0 mm) to Back Edges
Vent Pipe...............................................	1” (25 mm)

High Elevations

Input ratings are shown in BTU per hour and are certified without deration for elevations up to 4,500 feet (1,370 m) above sea level.

For elevations above 4,500 feet (1,370 m) in USA, installations must be in accordance with the current ANSI Z223.1/NFPA 54 and/or local codes having jurisdiction.

In Canada, please consult provincial and/or local authorities having jurisdiction for installations at elevations above 4,500 feet (1,370 m).

Gas Inlet and Manifold Pressures

	Natural	LP (Propane)
Inlet Minimum
	5.5” w.c.	11.0” w.c.
Inlet Maximum	14.0” w.c.	14.0” w.c.
Manifold Pressure	3.5” w.c.	10.0” w.c.

Gas Specifications

			Max.	Min.
			Input	Input
Model	Fuel	Gas Control	BTU/h	BTU/h
RFSDV24RN	Nat	Millivolt Hi/Lo	20,000	14,000
RFSDV24RP	Prop	Millivolt Hi/Lo	20,000	15,000
RFSDV34RFN	Nat	Comfort Control	30,000	21,000
RFSDV34RFP	Prop	Comfort Control	30,000	22,500

Preparation

The use of wallpaper adjacent to this fireplace is not recommended, as the high heat given off by this fireplace may adversely affect the binders in the adhesive used to apply the wallpaper.

Before beginning, remove the window frame assembly from the fireplace. Also check to make sure there is not hidden damage to the fireplace. Take a minute and plan out the gas, vent and electrical supply. Refer to Window Frame Assembly Removal Section.

Gas Line Installation

When purging gas line, the front window frame assembly must be removed.

The gas pipeline can be brought in through the rear of the fireplace as well as the bottom. Knockouts are

provided on the bottom behind the valve to allow for the gas pipe installation and testing of any gas connection. It is most convenient to bring the gas line in from the rear right side of the valve as this allows fan installation or removal without disconnecting the gas line.

The gas line connection can be made with properly tinned 3/8” copper tubing, 3/8” rigid pipe or an approved flex connector. Since some municipalities have additional local codes, it is always best to consult your local authority and the National Fuel Gas Code, ANSI Z223.1/NFPA 54 in the USA or the CSA-B149.1 installation codes.

Always check for gas leaks with a mild soap and water solution. Do not use an

open flame for leak testing.

The gas control is equipped with a captured screw type pressure test point, therefore it is not necessary to provide a 1/8” test point up stream of the control.

When using copper or flex connector use only approved fittings. Always provide a union when using black iron pipe so that the gas line can be easily disconnected for burner or fan servicing . See gas specifications for pressure details and ratings.

The fireplace valve must not be subjected to any test pressures exceeding 1/2 psi. Isolate or disconnect this or any other gas appliance control from the gas line when pressure testing.

6

10003550

1/2” Gas Supply

		1/2” x 3/8” Reducer
		3/8” Nipple
	3/8” Nipple	3/8” Union
	3/8” x 3/8”
	Shut-Off Valve
CFM106		3/8” Nipple

Fig. 3 Typical gas line connection.

Installation of Remote Switch

for RN/RP Gas Valve

NOTES: The remote ON/OFF switch cannot be fitted to units using the Honeywell Radio Frequency control valve.

If the fireplace has been fitted with the Radio Frequency Control Valve, the ON/OFF function is controlled by the remote handset. (Refer to the addendum or instructions packaged with the remote handset.)

Install the ON/OFF switch assembly on either the rear right or rear left side of the fireplace.

1.Remove the screw at the back of the cabinet top either on the left or the right side of the fireplace.

2.Position switch assembly onto the back of the fireplace, then fasten two (2) screws as shown in Figure 3.

3.Attach wiring under the clips on the rear casing (Fig. 4) and install wiring through the rear opening of the fireplace before connecting to the valve as shown in Figure 5.

RFSDV24/34 Freestanding Direct Vent Gas Fireplace

	Screw
ON/OFF Switch	(through existing
	hole)
Assembly	Screw
Clips

Wiring for

Millivolt Gas

Valves

FP1621

Fig. 4 Attach wiring under clips on rear casing.

SIT Valve

Thermopile

ON/OFF Switch or Millivolt Thermostat

Valve

TH TP TPTH

T	P
OL
	I

FP1622

TH	RN/RP Valve
TP
TP TH
PILOT
ADJ
	FP1494

Fig. 5 Install wiring to switch before connecting to valve.

10003550

7

RFSDV24/34 Freestanding Direct Vent Gas Fireplace

General Venting Information - Termination Location

D

E

V

L

B

CFM145a

C

V

F	V	Operable

B

		INSIDE
		CORNER DETAIL
		G
		V		N
	A	H	N

B

BV

V Fixed

Operable Closed

			B	M
	B	V J X
			I	V K X
		A

V VENT TERMINATION X AIR SUPPLY INLET AREA WHERE TERMINAL IS NOT PERMITTED

			Canadian Installations1	US Installations2
	A =	Clearance above grade, veranda, porch,	12” (30cm)	12” (30cm)
		deck, or balcony
	B = Clearance to window or door that may be		6” (15cm) for appliances	6” (15cm) for appliances
		opened	< 10,000Btuh (3kW), 12” (30cm)	< 10,000 Btuh (3kW), 9”
			for appliances > 10,000 Btuh (3kW) and	(23cm) for appliances > 10,000
			< 100,000 Btuh (30kW), 36” (91cm)	Btuh (3kW) and < 50,000 Btuh
			for appliances > 100,000 Btuh (30kW)	(15kW), 12” (30cm) for
				appliances > 50,000 Btuh (15kW)
	C = Clearance to permanently closed window		12” (305mm) recommended to	12” (305mm) recommended to
			prevent window condensation	prevent window condensation
	D = Vertical clearance to ventilated soffit located
		above the terminal within a horizontal	18” (458mm)	18” (458mm)
		distance of 2’ (610mm) from the center
		line of the terminal
	E = Clearance to unventilated soffit		12” (305mm)	12” (305mm)
	F =	Clearance to outside corner	see next page	see next page
	G = Clearance to inside corner (see next page)		see next page	see next page
	H = Clearance to each inside of center line		3’ (91cm) within a height of 15’ (5m)	3’ (91cm) within a height of 15’
		extended above meter/regulator assembly	above the meter/regulator assembly	(5m) above the meter/regulator
				assy
	I =	Clearance to service regulator vent outlet	3’ (91cm)	3’ (91cm)
	J =	Clearance to nonmechanical air supply inlet	6” (15cm) for appliances < 10,000	6” (15cm) for appliances
		to building or the combustion air inlet to any	Btuh (3kW), 12” (30cm) for	< 10,000 Btuh (3kW), 9”
		other appliances	appliances > 10,000 Btuh (3kW) and	(23cm) for appliances > 10,000
			< 100,000 Btuh (30kW), 36” (91cm)	Btuh (3kW) and < 50,000 Btuh
			for appliances > 100,000 Btuh (30kW)	(15kW), 12” (30cm) for
				appliances > 50,000 Btuh (15kW)
	K = Clearance to a mechanical air supply inlet		6’ (1.83m)	3’ (91cm) above if within 10
				feet (3m) horizontally
	L =	Clearance above paved sidewalk or paved	7’ (2.13m)†	7’ (2.13m)†
		driveway located on public property
	M = Clearance under veranda, porch, deck or		12” (30cm)‡	12” (30cm)‡
		balcony

N = Clearance above a roof shall extend a minimum of 24” (610mm) above the highest point when it passes through the roof surface, and any other obstruction within a horizontal distance of 18” (450mm).

1 In accordance with the current CSA-B149 Installation Codes

2 In accordance with the current ANSI Z223.1/NFPA 54 National Fuel Gas Codes

† A vent shall not terminate directly above a sidewalk or paved driveway which is located between two single family dwellings and serves both dwellings

‡ only permitted if veranda, porch, deck or balcony is fully open on a minimum 2 sides beneath the floor: NOTE: 1. Local codes or regulations may require different clearances.

2.The special venting system used on Direct Vent Fireplaces are certified as part of the appliance, with clearances tested and approved by the listing agency.

3.CFM Corporation assumes no responsibility for the improper performance of the appliance when the venting system does not meet these requirements.

Fig. 6 Termination location requirements.

8

10003550

RFSDV24/34 Freestanding Direct Vent Gas Fireplace

Termination Clearances

Termination clearances for buildings with combustible and noncombustible exteriors.

Inside Corner Outside Corner Alcove Applications*

				C	D
					C
				F =
		G =		Combustible
G		Combustible		6" (152 mm)	V
		6" (152 mm)	V	Noncombustible	E
				2" (51 mm)
		Noncombustible			O
	V			F
		2" (51 mm)

Balcony -	Balcony -
with no side wall	with perpendicular side wall	E = Min. 6” (152 mm) for
		non-vinyl sidewalls
		Min. 12” (305 mm) for
		vinyl sidewalls
		O = 8’ (2.4 m) Min.
M	M	No.
V	V	of Caps	DMin.	CMax.
		1	3’ (.9 mm)	2 x DActual
	P
		2	6’ (1.8 m)	1 x DActual
M =	Combustible &	3	9’ (2.7 m)	2/3 x DActual
	Noncombustible	4	12’ (3.7 m)	1/2 x DActual
Combustible &
	M = 24" (610 mm)
Noncombustible		DMin. = # of Termination caps x 3
	P = 20” (508 mm)
12" (305 mm)
		CMax. = (2 / # termination caps) x DActual			584-15

*NOTE: Termination in an alcove space (spaces open only on one side and with an overhang) is permitted with the dimensions specified for vinyl or non-vinyl siding and soffits. 1. There must be a 3’ (914 mm) minimum between termination caps. 2. All mechanical air intakes within 10’ (1 m) of a termination cap must be a minimum of 3’ (914 mm) below the termination cap. 3. All gravity air intakes within 3’ (914 mm) of a termination cap must be a minimum of 1’ (305 mm) below the termination cap.

Fig. 6a Termination clearances.

General Information on Assembling Vent Pipes

Canadian Installations:

The venting system must be installed in accordance with the current CSA-B149 .1 installation code.

USA Installations:

The venting system must conform with local codes and/ or the current National Fuel Gas code ANSI Z223.1/ NFPA 54.

Only venting components manufactured by CFM Corporation can be used in Direct Vent systems.

To join the twist lock pipes together, simply align the beads of the male end with the grooves of the female end, then while bringing the ends together, twist the pipe until the flange on the female end contacts the external flange on the male end. It is recommended that you secure the joints with three (3) sheet metal screws, however this is not mandatory with twist lock pipe.

To make it easier to assemble the joints we suggest putting a lubricant (Vaseline or similar) on the male end of the twist lock pipe prior to assembly.

Twist Lock Pipes

When using CFM Corporation twist-lock pipe it is not necessary to use sealant on the joints. The only areas of the venting system that need to be sealed with high temperature silicone sealant are the collars on the fireplace and termination, and the sliding joint of any telescopic vent section used in the system.

10003550

	Male End	Female End
	Screw Holes	TWL100
Fig. 7	Twist-lock pipe joints.
		9

RFSDV24/34 Freestanding Direct Vent Gas Fireplace

How to Use the Vent Graph

The vent chart should be read in conjunction with the following vent installation instructions to determine the relationship of the vertical and horizontal dimensions of the vent system.

1.Determine the height of the center of the horizontal vent pipe exiting through the outer wall. Using this dimension on the Sidewall Vent Graph (Fig. 8), locate the point intersecting with the slanted graph line.

2.From the point of this intersection, draw a vertical line to the bottom of the graph.

3.Select the indicated dimension, and position the fireplace in accordance with same.

Example A:

If the vertical dimension from the floor of the fireplace is 11’ (3.4m) the horizontal run to the face of the outer wall must not exceed 14’ (4.3 m).

Example B:

If the vertical dimension from the floor of the unit is 7’ (2.14m), the horizontal run to the face of the outer wall must not exceed 8¹⁄’ (2.6 m).

30
29
28																							theofcenterthe	fromdimensionVertical
27
26
25
24
23
22
21
20
19
18
17																							venthorizontal	theoffloorthe
16
15
14
13
																		Example:		A
12
11																							pipe
10																								fireplace
													Example:			B
7
9
8
6																								to
5
4
3
3		4	5		6		7		8	9		10		11 12	13 14		15 16		17 18		19	20

Horizontal dimension from the outside face of the wall to the center of the fireplace vent flange

Sidewall vent graph showing the relationship between vertical and horizontal dimensions for a Direct Vent flue system.

Fig. 8 Sidewall venting graph. (Dimensions in feet)

Vertical Sidewall Applications

Since it is very important that the venting system maintain its balance between

the combustion air intake and the flue gas exhaust, certain limitations as to vent configurations apply and must be strictly adhered to.

The vent graph showing the relationship between vertical and horizontal side wall venting will help to determine the various dimensions allowable.

Minimum clearance between vent pipes and combustible materials is one 1”

(25mm) on top, bottom and sides unless otherwise noted.

When the vent termination exits through foundations less than 20” (508 mm) below siding outcrop, the vent pipe must flush up with the siding.

It is always best to locate the fireplace in such a way that minimizes the number of offsets and horizontal vent length of vent pipe from the flue collar of the fireplace to the face of the outer wall.

Horizontal plane means no vertical rise exists on this portion of the vent assembly.

•The maximum number of 90° elbows per side wall installations is three (3).

•For RFSDV24 and RFSDV34 models, the maximum horizontal rn for a minimum 12” (305 mm) vertical rise is 3’ (914 mm). (Fig. 9)

36” (914 mm)

RFSDV24

RFSDV34

x = 12” (305 mm)

x

FP1495

Fig. 9 Maximum horizontal run.

•If a 90° elbow is used in the horizontal vent run

(level height maintained) the maximum horizontal vent length is reduced by 36” (914 mm). (Fig. 10) This does not apply if the 90° elbows are used to increase or redirect a vertical rise. (Fig. 11)

10

10003550

7.5ʼ (2286 mm)

A + B =17’ (5.2 m) Max.

FP1496

Fig. 10 90° elbow used in horizontal vent run.

20ʼ (6 m)

	m)	Pipe Straps
	(2.
		Every 3’ (914 mm)
	7.5ʼ

Pipe Straps Every 3’

(914 mm)

Firestop / Zero

Clearance Sleeve

FP1497

Fig. 11 90° elbow used to increase height.

Example: According to the chart the maximum horizontal vent length is 20’ (6 m). However, if a 90° elbow is used in the horizontal vent, maximum horizontal vent length is reduced to 17’ (5.2 m).

In Figure 9, the total of Dim. A and Dim. B must not exceed 17’ (5.2 m).

•The maximum number of 45° elbows permitted per installation is six (6). These elbows can be installed in either the vertical or horizontal run.

•For each 45° elbow installed in the horizontal run, the length of the horizontal run MUST be reduced by 18” (457 mm). This does not apply if the 45° elbows are installed on the vertical part of the vent system.

•The maximum number of elbow degrees in a system is 270°. (Fig. 12)

10003550

RFSDV24/34 Freestanding Direct Vent Gas Fireplace

Example:

Elbow 1 = 90°

Elbow 2 = 45°

Elbow 3 = 45°

Elbow 4 = 90°

Total angular variation = 270°

1 + 2 + 3 + 4 = 270°

FP1239

Fig. 12 Maximum elbow usage.

Vertical Sidewall Installations

STEP 1

Locate vent opening on the wall. It may be necessary to first position the fireplace and measure to obtain hole location. Depending on whether the wall is combustible or noncombustible, cut opening to size. (Fig. 13)

For combustible walls first frame in opening.

Combustible Walls: (Fig. 13) Cut a 9³⁄ ”H x 9³⁄ ”W (240 x 240 mm) hole through the exterior wall and frame as shown.

Noncombustible Walls: (Fig. 13) Hole opening must be 7¹⁄ ” (190 mm) in diameter.

	Vent Opening for Combustible Wall
	9³⁄ ”
	(240mm)
	Framing
9³⁄ ”	Detail
(240mm)
	Fireplace Hearth
	Opening for Noncombustible Wall
	7¹⁄ ”
	(190mm)
	VO584-100
Fig. 13	Locate vent opening on wall.
	11