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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 qualified installer, service agency or the gas supplier.
Save this manual for future reference.
For more information, visit www.desatech.com
2
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 .................................. 13
Operating Fireplace ........................................... 14
Converting Fireplace From
Natural Gas To Propane/LP Gas .................. 15
Troubleshooting ................................................. 17
Illustrated Parts Breakdown and Parts List ....... 18
Specifications .................................................... 22
Wiring Diagram .................................................. 22
Accessory and Replacement Parts ................... 23 www.desatech.com
111916-01F
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 series are heat circulating gravity 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 qualified 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.
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 complies 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.
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, YOU MAY CAUSE
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 installation 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.
FULL
PROJECTION
CORNER
INSTALLATION
FLUSH
INSTALLATION
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
111916-01F www.desatech.com
3
SELECTING LOCATION
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 replace any part(s) of the control ignition system and other related components that have been submerged under water.
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 . . . . . . . . . . . . 0"
• Floor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0"
• Perpendicular Wall . . . . . . . . . . . . . . . . . . . 6"
• Front . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36"
• Top of Standoffs . . . . . . . . . . . . . . . . . . . . . 0"
MANTEL CLEARANCES
Woodwork, such as wood trims, mantles and other combustible materials should be placed within the required clearance specified in Figure 2.
Mantel
Depth
(1) 14"
(2) 12"
(3) 10"
(4) 8"
(5) 6"
(6) 4"
(7) 2"
Mantel From Top of Opening
(A) 16"
(B) 14"
(C) 12"
(D) 10"
(E) 8"
(F) 6"
(G) 4"
A
B
C
D
E
F
G
1
2
3
4
5
6
7
Top of Louver Opening
Wall
Figure 2 - Mantel Clearances
4 www.desatech.com
111916-01F
PRE-INSTALLATION
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
0 to
HORIZONTAL
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 carpeting, 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.
A
B
C
CD32M CD36M-A CD42M-A
32 3 /
8
" 36 1 /
8
" 40 1 /
8
"
34 5 /
8
"
19"
41
23 1
1 /
4
/
2
"
" 48
25 5
1 /
4
/
8
"
"
B
A
C
Figure 3 - Framing Dimension
WARNING: Never allow the vent to run downward as this may cause excessive temperatures which could cause a fire.
A
B
D C
WARNING: Horizontal sections of this vent system require a minimum clearance of 2" from the top of the pipe and 1" minimum 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.
111916-01F
E
F
G
H
Nailing Tabs
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
"
D 9 1 /
2
"
49 5 /
8
"
10 3 /
8
"
58 1 /
2
"
13 1 /
2
"
E 9 7
F 34 1
/
8
"
/
2
"
13
41 1
3 /
4
/
8
"
" 16 3 /
4
"
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 www.desatech.com
5
6
PRE-INSTALLATION PREPARATION
Continued
N
N
D
H
E
V
B
L
C
Fixed
Closed
V
B
Openable Fixed
Closed
V
I
F V
Openable
B
G
B
B
V
A
J X G
M G
V
V K X V
A
V TERMINATION CAP X
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
AIR SUPPLY INLET G GAS METER RESTRICTED AREA
(TERMINATION PROHIBITED)
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
Termination Clearances for Buildings with Combustible and Noncombustible Exteriors
Inside Corner Outside Corner Recessed Location
D
C C
A A = 6" (15.2cm)
E
V
V V
B B = 6" (15.2cm)
Balcony with No Side Wall Balcony with Perpendicular Side Wall
G
V
G = Combustible 24" (61cm)
Noncombustible 18" (45.7cm)
H
Combustible &
Noncombustible
H = 24" (61cm)
J = 20" (50.8cm)
V
J
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)
Figure 5 - Minimum Clearances for Vent Terminations www.desatech.com
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.
WARNING: Horizontal sections of this vent system require a minimum clearance of 2" from the top of the pipe and 1" minimum 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.
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 manufactured 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.
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 location of your fireplace, you will vent vertically or horizontally.
4. Allow 1" of pipe to protrude from internal wall, depending on wall thickness. 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 termination to vent pipe. The vent termination must be removable for service pipe inspection.
Female
Locking Lugs
Vertical Flue
Restrictor
(For Vertical
Venting
Application)
Male
Locking Lugs
Figure 6 - Venting Installation
111916-01F www.desatech.com
7
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
Flat - 7/12
7/12 - 8/12
8/12 - 9/12
9/12 - 10/12
10/12 - 11/12
Minimum Height
Above Roof
1 ft. (30.48 cm)
1 1 /
2 ft (60.96 cm)
2 1
2
/
2
ft. (45.72 cm)
ft (76.20 cm)
4 ft (121.92 cm)
11/12 - 14/12
14/12 - 16/12
5 ft (152.40 cm)
6 ft (182.88 cm)
16/12 - 18/12 7 ft (213.36 cm)
18/12 - 20/12 7 1 /
2
ft (228.60 cm)
20/12 - 21/12 8 ft (243.84 cm)
Direct-Vent Pipe
CD32M and
CD36M-A
4 1 /
4
7 1 /
4
" Inner and
" Outer
CD42M-A
5" Inner and 8"
Outer
Wall Firestop
Siding Standoff
(Optional)
Minimum Pipe
Overlap 1 1 /
4
"
Deflector
Shield
Maintain 1"
Minimum
Air Space
Around Outer
Pipe when
Penetrating a
Wall
Screws
Horizontal
Termination
(Vent Cap)
Framed Openings
CD32M and
CD36M-A
10" x 10"
CD42M-A
10 3 /
4
" x 10 3 /
4
"
Exterior Wall with Vinyl
Siding
Figure 7 - Vent Termination (Horizontal)
Roof
Flashing
Wall Strap
8
45° Elbows
Ceiling Firestop
Figure 8 - Vertical Termination with
Offset and Wall Strap www.desatech.com
111916-01F
INSTALLATION
Continued
ELECTRICAL HOOKUP AND
REMOTE RECEIVER DIAGRAM
An outlet box with two receptacles (see Figure 9) has been supplied for your convenience and is located inside on the lower right side of the fireplace.
The remote control receiver is factory wired and connected to the convertible gas valve as shown in Figure 10.
Outlet Box
The appliance must be isolated from the gas supply piping system by closing its individual shutoff valve during any pressure testing of the gas supply piping system at test pressures equal to or less than
1/2 psig (3.5 kPa).
The gas control valve is secured underneath the firebox. Two 1/8" ports are provided on the gas control valve for pressure test gauge connections
(see Figure 11).
Pilot Gas Line
Do Not Kink
Pilot Adjustment
To Pilot
Burner
ON/OFF
Knob
To Main
Burner
Three-prong Plug
Figure 9 - Duplex Outlet
Inlet
Pressure Outlet
Pressure
Flame
Adjustment Knob
Figure 11 - Gas Control Valve
GAS LINE HOOK-UP
WARNING: Gas line hookup should be done by your gas supplier or a qualified service person.
Convertible
Gas Valve
Remote
Control
Receiver
Figure 10 - Remote Control Receiver
GAS SUPPLY TESTING
NOTICE: This section is intended as a guide for qualified technicians installing gas to the appliance.
WARNING: Do not connect appliance before pressure testing gas piping. Damage to gas valve may result and an unsafe condition may be created.
The appliance and its individual shutoff valve must be disconnected from the gas supply piping system during any pressure testing of that system at test pressures in excess of 1/2 psig (3.5 kPa).
WARNING: Before you proceed, make sure your gas supply is OFF.
An equipment shutoff valve has been included in the fireplace's gas supply system. However, consider installing an extra shutoff valve outside the applianceʼs enclosure (check local codes), where it can be accessed more conveniently with a key through a wall as shown in Figure 12.
Key
Shutoff
Valve
Extension
Figure 12- Typical Exterior Wall Gas
Shutoff Installation
111916-01F www.desatech.com
9
INSTALLATION
Continued
In conformance with local codes, route a 1/2"
NPT gas line towards the appliance coming in from either the left or right side of the fireplace
(see Figure 13).
Install a sediment trap between the incoming gas line and the gas control box (see Figure 14). The sediment trap should extend down a minimum of
3" (7.62 cm) beyond the center of the pipe.
When routing gas line through conduit sleeve, make sure to repack insulation to fill gaps between gas line and conduit sleeve. Compounds used on threaded joints of gas piping shall be resistant to the action of propane or natural gas. Compounds should be applied lightly to ensure excess sealant does not enter the gas line.
Complete your gas line installation by connecting the incoming gas line to the flexible gas line. Secure tightly with a wrench but do not over-tighten.
Incoming 1/2" Gas Line
Permitted By Local Codes
Sediment Trap
(Not Supplied)
3" Min.
(7.6 cm)
Figure 14 - Sediment Trap
PILOT ADJUSTMENT
The pilot or electrode assembly is factory preset for the proper flame height. Alterations to these settings may have occurred during shipping and handling. If this is the case, some minor readjustments may be necessary and should be done by a qualified service technician. The proper settings for the thermopile height should be at a distance of 3/8" (.95 cm) to 1/2" (1.27 cm) from the pilot flame as shown in Figure 15.
WARNING: All gas piping and connections must be tested for leaks after the installation is completed.
Never use an open flame to check for a leak. After ensuring that the gas valve is open apply commercial leak detection fluid to all gas joints. Bubbles forming show a leak. Correct all leaks at once.
Do not operate any appliance if a leak is detected.
1/8"
(0.3cm)
3/8" - 1/2"
(.95cm-1.3cm)
Figure 15 - Pilot Assembly
REMOVING GLASS PANEL
Gas Routing
(Right Side Not Shown)
Side of
Fireplace
Front Face
Figure 13 - Gas Line Routing
CAUTION: Before you proceed, make sure your gas control valve is in the OFF position.
1. To remove louvers, pull both spring latches
(located in each end of louver) toward center of appliance at the same time until disengaged from locating holes. Repeat for bottom end spring latches (see Figure 16, page 11).
2. Remove screen rod by removing rod loop from glass door center bracket. Slide screen rod either to the left or right of fireplace until one end is free to completely remove screen from fireplace.
10 www.desatech.com
111916-01F
INSTALLATION
Continued
3. Undo latches located on top and bottom of firebox (see Figure 17). Carefully swing door to the left. The glass door is securely mounted to the firebox with 5 screws.
Glass
Locating
Holes
CD32M
Log #1
Placement
1
Figure 18 - Installing Log #1
(CD36M-A Series Shown)
Spring
Latch
Bottom Louver
Figure 16 - Removing Louvers
Open
Close
2
Figure 19 - Installing Log #2
(CD36M-A Series Shown)
Figure 17 - Spring Latches
3
INSTALLING LOG SET
Each log is marked with a number in the following diagram. These numbers will help in identifying the logs when installed. It is very important to install these logs exactly as instructed. Do not modify logs. Only use logs supplied with fireplace.
Models CD32M and CD36M-A Series
1. Place log #1 (back log) on top of grate as shown in Figure 18 for the CD36M-A Series.
Log #1 will go in front of the metal partition on grate (see Figure 18). Make sure notches in bottom of log fit over grate.
2. Place log #2 (large front log) over pins on grate
(see Figure 19).
3. Place log #3 (c-shaped crossover log) onto rear and front logs as shown in Figure 20. Make sure it is seated properly on the smooth surface on front log and on the pin on back log.
4. Place log #4 (small round log) on pin on right side of front log (see Figure 21).
111916-01F
Figure 20 - Installing Log #3
(CD36M-A Series Shown)
4
Figure 21 - Installing Log #4
(CD36M-A Series Shown) www.desatech.com
11
INSTALLATION
Continued
5. Place log #5 (small front log) onto the front left part of grate making sure notches fit over prongs of grate (see Figure 22).
6. Place log #6 onto two pins on left side of back and front logs (see Figure 22).
6
5. Place log #5 (top log) onto right pin of front log
(#2) and smooth surface of rear log (#3). Make sure it is seated properly (see Figure 27).
6. Place log #6 (left log) on left pin of front log
(#2) and smooth surface of rear log (#3). Make sure it is seated properly (see Figure 28).
7. Place log #7 (right log) on right pin of top log (#5). Make sure it is seated properly (see
Figure 28).
3
5
Figure 22 - Installing Logs #5 and #6
(CD36M-A Series Shown)
Model CD42M-A Series
1. Place log #1 (small base log) onto pin on left side of grate extension (see Figure 23).
2. Rest left side of log #2 (front log) on top of log #1 and right side onto pin located on right side of grate extension (see Figure 24).
3. Place log #3 (rear log) onto pins on rear of grate (see Figure 25).
4. Place log #4 (crossover log) onto pins from both logs #2 and #3 (see Figure 26).
Figure 25 - Installing Log #3, Model
CD42M-A
4
Figure 26 - Installing Log #4, Model
CD42M-A
5
Figure 23 - Installing Log #1, Model
CD42M-A
2
Figure 27 - Installing Log #5, Model
CD42M-A
6
7
12
Figure 24 - Installing Log #2, Model
CD42M-A
Figure 28 - Installing Logs #6 and #7,
Model CD42M-A www.desatech.com
111916-01F
INSTALLATION
Continued
Lava Rock and Ember Material
1. For all models, place lava rock along sides and front of firebox bottom in areas that are visible. It is not necessary to use all lava rock provided.
NOTICE: Do not put lava rock on or under burner. Placing lava rock on burner could cause performance problems.
2. Pull ember material apart into pieces no larger than a dime. Place loosely and directly onto exposed section of front burner and along space between burner and grate prongs. These will create glowing ember appearance as flame touches ember material. Do not block air slots by using too much ember material in one area. It is not necessary to use all ember material provided.
3. When lava rock and ember material are in place, close and latch glass door and secure louvers in place.
3. Align holes on right face extension with holes on right side of front face assembly and secure with screws previously removed (see Figure
29). Do the same for left side.
4. Secure top face extension with left and right face extensions with two sheet metal screws
(see Figure 29).
Top Face
Extension
WARNING: The glass door must be securely in place before operating fireplace. Do not operate fireplace if glass is missing or broken.
Side Face
Extensions
Figure 29 - Front Face Extension, Model
CD32M Only
DECORATIVE FACING
Any noncombustible material may be used as facing (glass, tile, brick, etc.) as long as the proper clearances are observed (see Clearances to Com-
bustibles, page 4). Louvered openings must not be obstructed and upper and lower panels must remain accessible for service. Use only heat-resistant, noncombustible mortar or adhesive when securing decorative facing materials.
FACE EXTENSION FOR MODEL
CD32M ONLY
Model CD32M comes equipped with a front face extension. The front face extension would add
3 1 /
2
" to the width and 3/4" to the height of the fireplace face.
To install face extension:
1. Remove existing screws from front face assembly as shown in Figure 29.
2. Align holes on top face extension with holes on top side of front face assembly and secure with screws previously removed (see Figure 29).
BURNER FLAME
ADJUSTMENT
The burner flame adjustment (shutter opening) has been factory preset (for natural gas) to the proper air-to-gas ratio. This ratio results in an even, clean burning flame across the burner (see Figure 30).
CORRECT
Long, Blue Flame with Yellow Tips
INCORRECT
CLOSE
SHUTTER Short, Sharp, Blowing Flame
INCORRECT
OPEN
SHUTTER
Long, Uneven, Yellow Flame
Figure 30 - Burner Flame Patterns
111916-01F www.desatech.com
13
BURNER FLAME
ADJUSTMENT
Continued
If adjustment is necessary, you can restore the proper flame setting by loosening the air shutter screw and rotating the air shutter until proper setting is achieved (see Figure 31). The correct shutter openings are as follows:
Tube Burner
Model Natural Propane/
LP
Pan Burner
Natural Propane/
LP
CD32M 0.188"
CD36M-A 0.188"
Max.
Max
—
—
—
—
CD42M-A 0.188" 0.313" 0.188" 0.500"
WARNING: Improper installation, adjustment, alteration, service or maintenance can cause injury or property damage. Refer to this manual for assistance.
Consult a qualified installer for additional information.
OPERATING FIREPLACE
OPERATION GUIDELINES
• When used for the first time, the fireplace may emit a slight odor for about 16 to 24 hours. This is normal and is due to the “curing” of the logs and the “burn-in” of internal paint and lubricant used in the manufacturing process.
• Keep compartments, logs, burners and area surrounding logs clean by vacuuming and brushing at least twice a year or as necessary.
• Turn off gas and remote switch before servicing appliance. Any safety screen or guard removed for servicing the fireplace must be replaced prior to operation.
• Have a qualified agency periodically inspect vent system at the start of each heating season for any obstruction which will hinder its normal operation. Never obstruct the flow of combustion and ventilation air. Keep the front of the fireplace clear of all obstacles and materials.
FOR YOUR SAFETY
READ BEFORE LIGHTING
Adjustment
Screw
Firebox
Bottom
Adjustment Screw
Air Shutter
Opening
Firebox
Bottom
Burner
Gas Line
Burner Pan
Manifold
Air Shutter
Opening
Burner
Gas Line
Burner
Tube
Manifold
Figure 31 - Air Shutter Adjustments
WARNING: If you do not follow these instructions exactly, a fire or explosion may result causing property damage, personal injury or loss of life.
A. This appliance has a pilot which must be lighted by hand. When lighting the pilot, follow these instructions exactly.
B. BEFORE LIGHTING smell all around the appliance area for gas. Be sure to smell next to the floor because some gas is heavier than air and will settle on the floor.
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 a neighborʼs phone. Follow the gas supplierʼs instructions.
• If you cannot reach your gas supplier, call the fire department.
C. Use only your hand to push in control knob.
Never use tools. If the knob will not push in or slide by hand, donʼt try to repair it, call a qualified service technician. Force or attempted repair may result in a fire or explosion.
14 www.desatech.com
111916-01F
OPERATING FIREPLACE
Continued
D. Do not use this appliance if any part has been under water. Immediately call a qualified service technician to inspect the appliance and to replace any part of the control system and any gas control which has been under water.
Thermocouple
Piezo
Ignitor
Pilot Burner
Thermopile
LIGHTING
INSTRUCTIONS
1. STOP! Read the safety information above before proceeding.
2. Set the “HI-LO” knob to the lowest setting.
3. Turn off all electrical power to the appliance.
4. Open control access panel.
5. Push in gas control knob slightly and turn clockwise to “OFF”.
6. Wait five (5) minutes to clear out any gas.
Then smell for gas, including near the floor.
If you smell gas, STOP! Follow “B” in the safety information above. If you donʼt smell gas, go to the next step.
7. The pilot is located by the main burner.
8. Turn knob on gas control counterclockwise
to “PILOT”.
9. Push in the control knob all the way and hold in. Immediately light the pilot by pressing the red ignitor button until a flame appears. Continue to hold the control knob in for about one
(1) minute after the pilot is lit. Release knob and it will pop back up. Pilot should remain lit. If it goes out, repeat steps 5 through 9.
• If knob does not pop out when released, stop and call service technician or gas supplier.
• If the pilot will not stay lit after several tries, turn gas control knob to “OFF” and call your service technician or gas supplier.
10. Turn gas control knob counterclockwise
to “ON”. Knob can be turned to “ON” only if the control knob is popped out.
11. Set “HI-LO” knob to desired setting.
12. Turn on all electric power to the appliance.
Note: It is recommended that you maintain the gas control knob in the full OFF position during lengthy periods of seasonal non-usage.
Position
Indicator
Gas Control
Knob HI/LO Knob
Figure 32 - Control Knob in Pilot Position
111916-01F
Figure 33 - Pilot
TO TURN OFF GAS
TO APPLIANCE
1. Turn off the wall switch.
2. Turn off all electric power to the appliance if service is to be performed.
3. Remove control access panel.
4. Push in gas control knob slightly and turn clockwise to “OFF”. Do not force.
5. Replace control access panel.
CONVERTING FIREPLACE
FROM NATURAL GAS TO
PROPANE/LP GAS
The conversion kit is packaged with the unit.
Please check the contents before beginning this conversion.
WARNING: Before proceeding, make sure the gas control valve is in the OFF position and all electrical power to the appliance is turned off.
CONVERTING PILOT
1. Wait five (5) minutes to clear out any gas. Smell for any gas odor, especially near the floor. If any gas odor is present, STOP! See For Your Safety
Read Before Lighting on page 14.
2. Locate the latch on the louver assembly.
Remove top and bottom louvers by pulling the spring latches toward the center of the fireplace simultaneously until they are disengaged from the locating holes.
3. Undo latches located on top and bottom of firebox and swing door to the fully open position.
4. Carefully remove log set and ember material from burner and place them aside in a safe place.
5. Replace main burner orifice with burner orifice included in conversion kit (Model CD42M-A series contains two burner orifices).
www.desatech.com
15
CONVERTING FIREPLACE
FROM NATURAL GAS TO
PROPANE/LP GAS
Continued
6. Locate air shutter at end of burner manifold (end of tube burner for CD42M series). Loosen screw and adjust air shutter to proper setting (see Burner
Flame Adjustment, page 13). Retighten screw.
7. Remove pilot hood by pulling up until it disengages from barrel. Do not remove the retainer clip (see Figure 34).
8. Remove pilot orifice from inside barrel using a 5/32" allen wrench to unscrew the orifice.
9. Replace pilot orifice with LP orifice supplied with this kit. The number 30 is stamped on the sleeve for identification. Insert small end of new pilot orifice into barrel and thread until tight with the allen wrench.
10. Line up notch on pilot hood to the positioning tab on barrel receiver and snap back into position.
IMPORTANT: Be careful not to bend or kink the aluminum tubing during conversion. Make sure the pilot hood and orifice are properly mated and aligned after finishing this conversion.
3. Install the identification label enclosed with gas valve regulator to the valve body where it can easily be seen (see Figure 36).
WARNING: The conversion kit must be installed by a qualified service technician in accordance with the manufacturers instructions and all applicable codes and requirements of the authority having jurisdiction. If any information is these instructions is not followed correctly, a fire, explosion or production of carbon monoxide may result causing property damage, personal injury or loss of life.
The qualified service technician is responsible for the proper installation of this conversion kit.
Mounting
Screws
Pressure
Regulator
Tower
Pilot Hood
Pilot Orifice
Diaphragm/
Spring
Components
5/32" Allen
Wrench
OF F P
OT
Barrel Clip
Pilot Bracket
Figure 34 - Converting Pilot
CONVERTING CONTROL VALVE
Convert the gas control valve by swapping out the valve regulator portion of the gas valve.
1. Using a TORX T20 or a slotted screwdriver, remove and discard the three mounting screws, pressure regulator tower and diaphragm/spring components (see Figure 35).
2. Insure that the rubber gasket is properly positioned on the new pressure regulator
16 assembly. Install new pressure regulator assembly to valve using new mounting screws supplied with kit. Tighten screws securely
(approximately 25 in/lb). See Figure 36.
Figure 35- Removing Parts for Gas
Control Valve Conversion
LO
Mounting
Screws
Identification
Label
OF
OT
F P
Rubber
Gasket
Figure 36- Installing New Parts for Gas
Control Valve Conversion www.desatech.com
111916-01F
TROUBLESHOOTING
WARNING: Turn off heater and let cool before servicing. Only a qualified service person should service and repair heater.
WARNING: Turn off heater and let cool before servicing. Only a qualified service person should service and repair heater.
OBSERVED PROBLEM
Pilot will not stay lit
Pilot lit but no flame on burner
Frequent pilot outage
POSSIBLE CAUSE
1. Defective thermocouple
REMEDY
1. Check pilot flame. It must impinge on thermocouple
2. Clean or adjust pilot for maximum flame impingement on thermocouple
3. Ensure the connection between valve and thermocouple are tight and secure
4. Check thermocouple with millivolt meter. Take reading at thermocouple terminals of gas valve with remote control off. It should read 18 millivolts minimum. Replace faulty thermocouple if reading is below specified minimum
1. Remote or wires defective
2. Thermopile not generating sufficient milivoltage
3. Plugged burner orifice
1. Check remote wires for proper connections. Place jumper wire across terminals at remote control. If burner comes on, replace remote. If okay, place jumper wire across remote control at valve. If burner comes on, wires are faulty or connections are bad
2. Check thermopile with millivolt meter. Take reading at thermopile terminals of gas valve with remote control off.
It should read 325 millivolts minimum. Replace thermopile if reading is below specified minimum
3. Check burner orifice for stoppage and remove
1. Pilot flame may be too low or blowing (high) causing safety pilot to “drop out”
1. Clean and/or adjust pilot flame for maximum flame impingement on thermocouple
111916-01F www.desatech.com
17
ILLUSTRATED PARTS BREAKDOWN
MODELS CD32M AND CD36M-A SERIES
20
21-1
21-3
21-2
21-5 21-4
21-6
7
8
1
3
4
13
9
16
6
15
5
14
15
2
41
42
11
10
12
23
17
36
22
29
24
28
34
27
30
25
26
19
18
38
37
39
33
35
32
31
40
18 www.desatech.com
111916-01F
PARTS LIST
MODELS CD32M AND CD36M-A SERIES
KEY
NO.
PART NUMBER
CD32M CD36M-A DESCRIPTION
11179
11237
14389
14492
14500
14253
14511
14528
110182-01
109007-01
109009-01
109008-01
107348-01
107347-01
11102
11105
**
**
**
108074-01
108076-01
110991-01
110990-01
110989-01
11418
12105
13113
**
**
**
109082-01
109006-01
14496
14576
26808
26827
108077-01
104504-03
108084-02
**
—
—
—
3
4
1
2
5
**
**
108892-01
108903-01
108903-02
36
37
38
39
32
33
34
35
40
41
42
18
19
20
21
14
15
16
17
10
11
12
13
8
9
6
7
28
29
30
31
24
25
26
27
21-1 109403-01
21-2 109404-01
21-3 109407-01
21-4 109406-01
21-5 109405-01
21-6 109408-01
22
23
11102
11105
11179
11237
14389
14492
14500
14253
14511
14528
**
**
**
108885-01
108890-01
108897-01
108901-01
108901-02
11418
108440-01
108455-02
**
**
**
109082-03
109022-01
104506-25
104509-02
26808
26827
108886-01
108891-01
108084-02
**
109699-01
109699-02
109700-01
**
**
108010-01
108011-01
108011-02
Firebox Assembly
Face Weldment
Door Assembly
Top Panel Assy Louver
Bottom Panel Assy Louver
25487
110251-01
PARTS AVAILABLE NOT SHOWN
25487
110251-01
Lava Rock
Micro Switch Assembly
27253
109896-01
27253
112033-01
Notice Label
Gas Conversion Kit
** Not a field replaceable part. † Optional - See page 23.
Fireplace Top
Fireplace Top Insulation
Fireplace Surround
Burner Assembly
Burner Base Gasket
Rear Refractory†
Right Refractory†
Left Refractory†
Push-On Nut
Screen
Screen Rod
Electrical Duct Assy
Gas Knock-Out Cover
Gas Conduit Assy
Heat Shield
Log Set
Front Log (Log 1)
Rear Log (Log 2)
Base Log (Log 3)
Crossover Log (Log 4)
Left Top Log (Log 5)
Right Top Log (Log 6)
Screw #8-32 x 3/8 PPH Zinc
Screw #10 x 1/2 Zinc
Screw #10-24 x 1/4 Zinc
Screw Trilab M4 x 8mm
HI-LO Sit Valve (Nat Gas)
Piezo Ignitor
Brass Fitting
Flexible Connector
Ignitor Bracket
Brass Elbow Fitting
Orifice
Aluminum Tubing Assy
Valve Bracket
Switch Bracket
Grate Base
Burner Tube
Pilot Assembly (Nat Gas)
Burner Base Assembly
Right Face Extension
Left Face Extension
Top Face Extension
111916-01F www.desatech.com
1
1
1
1
QTY.
1
1
2
1
1
1
4
1
2
9
1
1
1
1
1
1
1
1
2
1
1
1
2
2
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
19
ILLUSTRATED PARTS BREAKDOWN
MODEL CD42M-A
6
21-6
21-5
21-4
21-7
20
1
8
7
13
21-3
212
21-1 3
15
16
14
11
12
10
9
2
41
23
17
19
18
37
15
5
4
40
29
28
24
34
35
27
30
25
26
28
33
36
39
38
22
32
31
42
20 www.desatech.com
111916-01F
PARTS LIST
MODEL CD42M-A
KEY
NO.
PART
NUMBER
1 **
35
36
37
38
31
32
33
34
39
40
41
42
27
28
29
30
23
24
25
26
14
15
16
17
10
11
12
13
8
9
6
7
4
5
2
3
**
108328-01
108331-01
108331-03
**
**
**
108329-05
108374-01
111300-01
111301-01
111302-01
11418
107840-01
108455-01
110037-01
18
19
20
21
**
**
**
108778-01
21-1 109402-01
21-2 109396-01
21-3 109397-01
21-4 109398-01
21-5 109399-01
21-6 109400-01
21-7 109401-01
22 11102
11105
11179
11237
14389
14492
14500
14253
14511
14528
104506-25
14544
26808
26827
108346-01
108376-01
108084-02
108755-01
108373-01
108330-01
104506-24
PARTS AVAILABLE NOT SHOWN
DESCRIPTION
Firebox Assembly
Face Weldment
Door Assembly
Top Panel Assembly Louver
Bottom Panel Assembly Louver
Fireplace Top
Fireplace Top Insulation
Fireplace Surround
Burner Assembly
Burner Base Gasket
Rear Refractory†
Right Refractory†
Left Refractory†
Push-On Nut
Screen
Screen Rod
Electrical Duct Assembly
Gas Knock-Out Cover
Gas Conduit Assembly
Heat Shield
Log Set
Small Base Log (Log 1)
Front Log (Log 2)
Rear Log (Log 3)
Crossover Log (Log 4)
Top Center Log (Log 5)
Top Left Log (Log 6)
Top Right Log (Log 7)
Screw #8-32 x 3/8 PPH Zinc
Screw #10 x 1/2 Zinc
Screw #10-24 x 1/4 Zinc
Screw Trilab M4 x 8mm
HI-LO Sit Valve (Natural Gas)
Piezo Ignitor
Brass Fitting
Flexible Connector
Ignitor Bracket
Brass Elbow Fitting
Orifice
Aluminum Tubing Assembly
Valve Bracket
Switch Bracket
Grate Base
Burner Tube
Pilot Assembly (Natural Gas)
Pilot Bracket
Burner Base Assembly
Burner Pan Assembly
Orifice
25487
110251-01
27253
111007-01
** Not a field replaceable part.
† Optional - See page 23.
Lava Rock
Micro Switch Assembly
Notice Label
Gas Conversion Kit
111916-01F www.desatech.com
1
1
1
1
QTY.
1
1
1
9
4
1
2
1
1
1
1
1
1
1
1
2
1
1
1
2
2
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
21
SPECIFICATIONS
Gas Rate (Natural)
CD32M
12,000/
18,000 Btu/hr
Gas Rate (Propane/LP)
Ignition
Natural Gas Manifold Pressure
11,000/
17,000 Btu/hr
Piezo
3.5" w.c.
Propane/LP Manifold Pressure 10" w.c.
Minimum Inlet Supply Pressure 4.5" w.c.
CD36M-A
15,000/
22,000 Btu/hr
14,000/
20,000 Btu/hr
Piezo
3.5" w.c.
10" w.c.
4.5" w.c.
CD42M-A
25,000/
35,000 Btu/hr
23,000/
33,000 Btu/hr
Piezo
3.5"w.c.
10" w.c.
4.5" w.c.
WIRING DIAGRAM
Incoming
Main
Gas
Supply
Piezo Ignitor
Thermocouple
Control
Valve
TPTH
TH
TP
Electrical Rating:
120v, 60Hz, 0.7A
Pilot
Thermopile
Pilot
Gas Line
Piezo Ignitor
Safety Microswitch for
Models CD32M-2, CD36M-A2 and CD42M-A2 Only
Optional Wiring Diagram
For Fan Kit
(Remote Switch
Field Supplied)
Wireway
Do Not
Connect
To 120V
N.O.SW
BLK
GND
WHT
GRN
Field Wire
Incoming
120V AC
(Fuse Box or
Breaker)
Connectors
(Not Supplied)
22 www.desatech.com
111916-01F
ACCESSORY AND REPLACEMENT PARTS
MILLIVOLT
ON
P
HI-LO
VALVE
P/N #14389
PILOT ASSY.
PN 108084-02 (NG)
MICRO SWITCH ASSEMBLY
P/N 110251-01
FOR MODELS CD32M-2,
CD36M-A2, AND CD42M-A2 ONLY
PIEZO IGNITOR
P/N 14492
109479-01 (CD32M SERIES)
108719-01 (CD36M SERIES)
108455-01 (CD42M)
ROD
PILOT ORIFICE
108085-01 #51 NAT
108085-02 #30 LP
SCREEN
108440-01 (CD32M SERIES)
OPTIONAL REMOTE CONTROL KIT
P/N 00825 (ELECTRONIC ONLY)
(BATTERY REQUIRED FOR
TRANSMITTER)
GLASS DOOR ASSEMBLY
P/N 108892-01 (CD32M SERIES)
P/N 110994-01 (CD36M-A SERIES)
P/N 108328-01 (CD42M-A)
STANDARD REMOTE CONTROL KIT
P/N 14187 (MILLIVOLT ONLY)
(BATTERIES REQUIRED FOR
RECEIVER AND TRANSMITTER)
REGULAR
BLOWER KIT
BK
FOR MODELS CD32M, CD32M-2
CD36M-A, CD36M-A2 AND CD42M-A
STANDARD TOP LOUVER
P/N 108903-01 (CD32M SERIES)
P/N 108011-01 (CD36M-A SERIES)
P/N 108331-01 (CD42M-A)
STANDARD
BOTTOM LOUVER
P/N 108903-03 (CD32M SERIES)
P/N 108011-03 (CD36M-A SERIES)
P/N 108331-03 (CD42M-A)
CD32M SERIES
ORIFICE #47(NAT)
P/N 104506-25
ORIFICE #55 (LP)
P/N 14514
CD36M-A SERIES
ORIFICE #43 (NAT)
P/N 14496
ORIFICE #55 (LP)
P/N 14514
TUBE BURNER
ORIFICE #47(NAT)
P/N 104506-25
ORIFICE #56 (LP)
P/N 104506-20
CD42M-A
PAN BURNER
ORIFICE #46(NAT)
P/N 104506-24
ORIFICE #56 (LP)
P/N 104506-20
REMOTE CONTROL KIT
P/N 00710 (OPTIONAL)
USED ON BLOWER ONLY
RECEIVER
TRANSMITTER RECEIVER TRANSMITTER RECEIVER
TRANSMITTER
111916-01F www.desatech.com
23
2701 Industrial Drive
P.O. Box 90004
Bowling Green, KY 42102-9004 www.desatech.com
111916 01
NOT A UPC
111916-01
Rev. F
04/05
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Table of contents
- 3 Introduction
- 3 Selecting Location
- 4 Pre-Installation Preparation
- 7 Installation
- 13 Burner Flame Adjustment
- 14 Operating Fireplace
- 15 Converting Fireplace From Natural Gas To Propane/LP Gas
- 17 Troubleshooting
- 18 Illustrated Parts Breakdown
- 22 Specifications
- 22 Wiring Diagram
- 23 Accessory and Replacement Parts