Desa CD36M-A, CD32M-2, CD42M-A2, CD36M-A2, CD32M-1 User Manual

...

DIRECT-VENT FIREPLACE

OWNER’S OPERATION AND INSTALLATION MANUAL

CD32M 32" DV Fireplace with Fan CD32M-1 32" DV Fireplace CD32M-2 32" DV Fireplace with Fan & Door Switch

CD36M-A 36" DV Fireplace with Fan CD36M-A1 36" DV Fireplace CD36M-A2 36" DV Fireplace with Fan & Door Switch

CD42M-A 42" DV Fireplace with Fan CD42M-A2 42" DV Fireplace with Fan & Door Switch

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.

— Do not store or use gasoline or other ﬂammable

vapors and liquids in the vicinity of this or any other appliance.

— WHAT TO DO IF YOU SMELL GAS

• Do not try to light any appliance.

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

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

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

— Installation and service must be performed by a quali-

ﬁed installer, service agency or the gas supplier.

Save this manual for future reference.

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WARNING: Improper installation, adjustment, alteration, service or maintenance can cause injury or property damage. Refer to this manual for correct installation and operational procedures. For assistance or additional information consult a qualiﬁed installer, service agency or the gas supplier.

WARNING: This direct-vent gas ﬁreplace is intended for use with natural or propane/LP gas only. Do not attempt to burn any solid fuels in this appliance.

This ﬁreplace is manufactured for Stylecrest Inc. under the Vexar brand name by DESA.

This ﬁreplace may be installed as an OEM installation in a manufactured (mobile) home and must be installed in accordance with the manufacturers instructions and the Manufactured Home Construction and Safety Standard, Title 24 CFR, Part 3280 in the United States or the Mobile Home Standard, CAN/CSA Z240 MH Series, in Canada. This ﬁreplace is only for use with the type(s) of gas indicated on the rating plate. A conversion kit is supplied with the ﬁreplace.

SAVE THIS BOOK

This book is valuable. In addition to instructing you on how to install and maintain your appliance, it also contains information that will enable you to obtain replacement parts or optional accessory items when needed. Keep it with your other important papers.

TABLE OF CONTENTS

Introduction .......................................................... 3

Selecting Location ............................................... 3

Pre-Installation Preparation .................................. 4

Installation ........................................................... 7

Burner Flame Adjustment ..................................

Operating Fireplace ........................................... 14

Converting Fireplace From

Natural Gas To Propane/LP Gas .................. 15

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Troubleshooting .................................................

Illustrated Parts Breakdown and Parts List ....... 18

Speciﬁcations .................................................... 22

Wiring Diagram .................................................. 22

Accessory and Replacement Parts ................... 23

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INTRODUCTION

WARNING: This product contains and/or generates chemicals known to the State of California to cause cancer or birth defects or other reproductive harm.

Models CD32M series, CD36M-A series and CD42M-A seri es are heat circula ti ng grav ity direct-vent ﬁreplaces with sealed combustion chamber. These ﬁreplaces use millivolt gas control valve and millivolt ignition system.

These ﬁreplaces are convertible with the standard setup as natural gas. Conversion may be performed by the O.E.M. mobile home builder or by a quali ﬁed service person on-site. If you are uncertain as to what gas your unit is equipped for, please check the rating plate located inside of the appliance opening or consult your mobile home supplier or your local distributor of DESA/Vexar products.

NOTICE: Check local building codes for area requirements before installing this appliance.

BEFORE YOU BEGIN

Before beginning the installation of your appliance, read these instructions through completely.

This DESA/Vexar ﬁreplace and its components are safe when installed according to this installation manual and operated as recommended. Unless you use DESA/Vexar components designed and tested for this ﬁreplace system,

A SAFETY HAZARD!

The DESA/Vexar warranty will be voided by, and DESA/Vexar disclaims any responsibility for the following actions:

A) Modification to the fireplace, components,

doors, blower, fans or vent system.

B) Use of any component part not manufactured or

approved by DESA/Vexar in combination with a DESA/Vexar ﬁreplace system.

Proper installation is the most important step in ensuring safe and continuous operation of the ﬁreplace. Consult the local building codes as to the particular requirements concerned with the instal lation of all factory built ﬁreplaces. This ﬁreplace, when installed, must be electrically grounded in accordance with local codes or in the absence of local codes, with the National Electrical Code,

ANSI/NFPA 70 or the Canadian Electrical Code, CSA C22.1.

YOU MAY CAUSE

The installation must conform with local codes or, in the absence of local codes, with the National Fuel

Gas Code, ANSI Z223.1 or the Canadian Installa tion Code, CAN/CGA B149. This appliance com-

plies with ANSI Z21.88-1998 and CSA 2.33-M98 as a VENTED GAS FIREPLACE HEATER.

SELECTING LOCATION

To determine the safest and most efﬁcient location for your ﬁreplace, consider the following

guidelines:

1. The location must allow for proper clearances

(see Figure 1).

2. Consider a location where the ﬁreplace would

not be affected by drafts, air conditioning ducts, windows or doors.

3. A location that avoids the cutting of joists or roof

rafters makes ventilation installation easier.

In selecting a location, the following precautions must be observed:

• Do not connect this appliance to a chimney

system used for solid fuel burning ﬁreplace.

• Due to high temperatures, do not locate this

appliance in high trafﬁc areas or near furniture and draperies.

• Never obstruct the openings of the appliance

or ﬂow of ventilation air. Keep the control compartments accessible.

FULL

PROJECTION

Flush installation is recommended where living space is limited.

Projected installation may be ideal for a new addition to an existing ﬁnished wall.

Corner installation makes use of a space that may

not normally be used and provides a wider and

more efﬁcient range for radiant heat transfer.

Figure 1 - Common Fireplace Locations

CORNER

INSTALLATION

FLUSH

INSTALLATION

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SELECTING LOCATION

p of Louver Opening

Continued

• Do not locate appliance close to where gasoline or other ﬂammable liquids may be stored. The appliance must be kept clear and free from combustible materials.

• Do not use this appliance if any part has been under water. Immediately contact a local service technician to examine the appliance and to re place any part(s) of the control ignition system and other related components that have been submerged under water.

Mantel

Depth

(1) 14" (A) 16"

(2) 12" (B) 14"

(3) 10" (C) 12"

(4) 8" (D) 10"

(5) 6" (E) 8"

(6) 4" (F) 6"

(7) 2" (G) 4"

Mantel From Top

of Opening

PRE-INSTALLATION

PREPARATION

CAUTION: Do not block required air spaces with insulation or any other material. Do not obstruct the effective opening of the appliance with any type of facing material.

CLEARANCES TO COMBUSTIBLES

Minimum clearances to combustibles for the ﬁreplace are:

• Back and Sides of Fireplace . . . . . . . . . . . .

• Floor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

• Perpendicular Wall . . . . . . . . . . . . . . . . . . .

• Front . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

• Top of Standoffs . . . . . . . . . . . . . . . . . . . . .

MANTEL CLEARANCES

Woodwork, such as wood trims, mantles and other combustible materials should be placed within the required clearance speciﬁed in Figure 2.

36"

Figure 2 - Mantel Clearances

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111916-01F

PRE-INSTALLATION

Nailing Tabs

PREPARATION

Continued

VENT TERMINATION CLEARANCES

The ﬁnal position of your ﬁreplace depends on the location of the vent termination in relation to the clearances that must be observed as shown in Figure 5 on page 6.

The vent system serves as the “chimney” as well as the combustion air supply (air intake). The horizontal run must have a rise of 1/4" (.6 cm) for every 12" (30.48 cm) of horizontal run towards the termination. The maximum horizontal run depends on the vertical rise from the ﬁreplace adapter collar to the vent termination (see table below).

VERTICAL HORIZONTAL

0 to 1 ft (30.48 cm)

1 ft (30.48 cm) to 4 ft (121.92 cm)

2 ft (60.96 cm) to 8 ft (243.84 cm)

3 ft (91.44 cm) to 12 ft (365.76 cm)

4 ft (121.92 cm) to 16 ft (487.68 cm)

5 ft (152.40 cm) to 15 ft (457.20 cm)

6 ft (182.88 cm) to 14 ft (426.72 cm)

7 ft (213.36 cm) to 13 ft (396.24 cm)

8 ft (243.84 cm) to 12 ft (365.76 cm)

FRAMING

Once the ﬁnal location has been determined, observing height clearances for vent termination, you may construct framing using dimensions shown in Figures 3 and 4, depending on your installation.

If the appliance is to be installed directly on carpet ing, tile (other than ceramic) or any combustible material other than wood ﬂooring, the appliance must be installed on a metal or wood panel extending the full width and depth of the appliance.

CD32M CD36M-A CD42M-A

A 32 3/8" 36 1/8" 40 1/8"

B 34 5/8" 41 1/4" 48 1/4"

C 19" 23 1/2" 25 5/8"

Figure 3 - Framing Dimension

WARNING: Never allow the vent to run downward as this may cause excessive tempera

tures which could cause a ﬁre.

WARNING: Horizontal sections of this vent system require a minimum clearance of 2" from the top of the pipe and 1" mini

mum to the sides and bottom. Vertical sections of this system require a minimum of 1" clearance to combustible materials on all sides of the pipe.

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CD32M CD36M-A CD42M-A

A 28 1/2" 35 3/4" 41 5/8"

B 13 5/8" 15" 21 5/8"

C 39 3/8" 49 5/8" 58 1/2"

D 9 1/2" 10 3/8" 13 1/2"

E 9 7/8" 13 3/4" 16 3/4"

F 34 1/2" 41 1/8" 48"

G 35 1/2" 42 1/8" 48 1/4"

H 54 3/8" 68 1/4" 81 1/2"

Figure 4 - Corner Installation

Fixed

Closed

Openable

Fixed

Closed

Openable

TERMINATION CAP

AIR SUPPLY INLET

GAS METER RESTRICTED AREA

(TERMINATION PROHIBITED)

A = clearance above grade, veranda, porch, deck, or balcony

[*12 inches (30.5cm) minimum]

B = clearance to window or door that may be opened

[12 inches (30.5cm) minimum]

C = clearance to permanently closed window [minimum 12 inches

(30.5cm) recommended to prevent condensation on window] D = vertical clearance to ventilated soffit located above the terminal within a horizontal distance of 24 inches (61cm) from the

center-line of the terminal [18 inches (45.7cm) minimum] E = clearance to unventilated soffit [12 inches (30.5cm) minimum] F = clearance to outside corner (see below) G = clearance to inside corner (see below) H = *not to be installed above a meter/regulator assembly within

36 inches (91.4cm) horizontally from the center-line of the regulator

I = clearance to service regulator vent outlet [*72 inches (182.9cm)

minimum]

J = clearance to non-mechanical air supply inlet to building or the

combustion air inlet to any other fireplace [*12 inches (30.5cm)

minimum] K = clearance to a mechanical air supply inlet [*72 inches (182.9cm) minimum] L = † clearance above paved side-walk or a paved driveway located on

public property [*84 inches (213.4cm) minimum] M = clearance under veranda, porch, deck [*12 inches (30.5cm) minimum ‡] N = clearance above a roof shall extend a minimum of 24 inches (61cm) above the highest point when it passes through the roof surface and any other obstruction within a horizontal distance of 18 inches (45.7cm)

† vent shall not terminate directly above a side-walk or paved driveway which is located between two single family dwellings and serves both dwellings *

‡ only permitted if veranda, porch, deck or balconey is fully open on a minimum of 2 sides beneath the floor* * as specified in CAN/SGA B149 (.1 or .2) Installation Codes (1991) for Canada or for U.S.A. installation follow

the current National Fuel Gas Code, ANSI Z223.1 Note: Local codes or regulations may require different clearances

A = 6" (15.2cm)

Inside Corner

B = 6" (15.2cm)

C = Maximum depth of 48" (121.9cm) for recessed location D = Minimum width for back wall of recessed location Combustible - 38" (96.5cm) Noncombustible - 24" (61cm) E = Clearance from corner in recessed location Combustible - 6" (15.2cm) Noncombustible - 2" (5.1cm)

Outside Corner Recessed Location

G = Combustible 24" (61cm) Noncombustible 18" (45.7cm)

Balcony with No Side Wall

Combustible & Noncombustible H = 24" (61cm) J = 20" (50.8cm)

Balcony with Perpendicular Side Wall

Termination Clearances for Buildings with Combustible and Noncombustible Exteriors

PRE-INSTALLATION PREPARATION

Continued

Figure 5 - Minimum Clearances for Vent Terminations

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111916-01F

INSTALLATION

WARNING: Read all instructions completely and thoroughly before attempting installation. Failure to do so could result in serious injury, property damage or loss of life. Operation of improperly installed and maintained venting system could result in serious injury, property damage or loss of life.

NOTICE: Failure to follow these instructions will void the warranty.

VENTING INSTALLATION PRECAUTIONS

Consult local building codes before beginning the installation. The installer must make sure to select the proper vent system for installation. Before installing vent kit, the installer must read this ﬁreplace manual and vent kit instructions.

Only a qualiﬁed service person should install venting system. The installer must follow these safety rules:

• Wear gloves and safety glasses for protection

• Use extreme caution when using ladders or when on roof tops

• Be aware of electrical wiring locations in walls and ceilings

The following actions will void the warranty on your venting system:

• Installation of any damaged venting component

• Unauthorized modiﬁcation of the venting system

• Installation of any component part not manu factured or approved by DESA

• Installation other than as instructed by these instructions

WARNING: This gas ﬁreplace and vent assembly must be vented directly to the outside. The venting system must NEVER be attached to a chimney serving a separate solid fuel burning appliance. Each gas appliance must use a separate vent system. Do not use common vent systems.

WARNING: Horizontal sections of this vent system require a minimum clearance of 2" from the top of the pipe and 1" mini mum to the sides and bottom. Vertical sections of this system require a minimum of 1" clearance to combustible materials on all sides of the pipe.

VENTING INSTALLATION

1. Install elbow to ﬁreplace collar adapter located on back of the unit at a 45° angle. Slide elbow over collar and twist to lock. Check to insure proper connection (see Figure 6).

2. Continue to install remainder of pipe for desired installation. Make sure each section is twist-locked securely.

3. When installation of vent pipe is complete, in stall vent termination. Depending on the loca tion of your ﬁreplace, you will vent vertically or horizontally.

4. Allow 1" of pipe to protrude from internal wall, dep ending on wall thic kn ess. See Figure 7, page 8.

5. For horizontal installation, an optional siding standoff may be installed between the vent cap and the exterior wall. Secure horizontal vent cap to standoff. Secure standoff/vent cap assembly to wall (see Figure 7, page 8). Do not seal termi nation to vent pipe. The vent termination must be removable for service pipe inspection.

Female Locking Lugs

Vertical Flue Restrictor (For Vertical Venting Application)

Figure 6 - Venting Installation

Male Locking Lugs

111916-01F 7

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INSTALLATION

Continued

6. For vertical installation, a vertical termination is available. Also for vertical venting application, install vertical ﬂue restrictor into inner collar of ﬁreplace as shown in Figure 6, page 7.

When installing a length of pipe for vertical

termination that is over 3 ft., support the pipe every 3 ft. using metal wall straps. Vertical to horizontal pipe must be kept at a 1 ft. to 4 ft. ratio with a maximum run of no more than 20 ft.

If an offset is necessary in the attic to avoid

obstruction, it is important to support the vent pipe every 3 ft. to avoid excessive stress on the elbows and possible separation (see Figure 8).

Clearances must be maintained between the roof

and the termination. Refer to chart below.

Roof Pitch Minimum Height

Flat - 7/12 1 ft. (30.48 cm)

7/12 - 8/12 1

8/12 - 9/12 2 ft (60.96 cm)

9/12 - 10/12 2

10/12 - 11/12

11/12 - 14/12

14/12 - 16/12 6 ft (182.88 cm)

16/12 - 18/12 7 ft (213.36 cm)

18/12 - 20/12 7

20/12 - 21/12 8 ft (243.84 cm)

Above Roof

ft. (45.72 cm)

ft (76.20 cm)

4 ft (121.92 cm)

5 ft (152.40 cm)

ft (228.60 cm)

Direct-Vent Pipe CD32M and CD36M-A 4 1/4" Inner and 7 1/4" Outer CD42M-A 5" Inner and 8"

Siding Standoff (Optional)

Minimum Pipe Overlap 1 1/4"

Outer

Wall Firestop

Deﬂector Shield

Maintain 1" Minimum Air Space Around Outer Pipe when Penetrating a Wall

Framed Openings CD32M and CD36M-A

Screws

Horizontal Termination (Vent Cap)

Exterior Wall with Vinyl Siding

10" x 10" CD42M-A 10

" x 10

Figure 7 - Vent Termination (Horizontal)

Roof Flashing

Wall Strap

45° Elbows

Ceiling Firestop

Figure 8 - Vertical Termination with

Offset and Wall Strap

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111916-01F

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