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B-VENT DECORATIVE GAS FIREPLACE
OWNER'S OPERATION AND INSTALLATION MANUAL
MODELS M36(B,H), M42(B,H), VM36(B,H) AND VM42(B,H)
MODELS M36P(B,H), M42P(B,H), VM36P(B,H) AND VM42P(B,H)
WARNING: If the information in these instructions is
not followed exactly, a fire or explosion may result
causing property damage, personal injury or death.
— Do not store or use gasoline or any other flammable
vapors or 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.
NATURAL GAS
PROPANE/LP GAS
FOR YOUR SAFETY
Save this manual for future reference.
For more information, visit www.desatech.com
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Summary of Contents for Desa VM42P
- Page 1 B-VENT DECORATIVE GAS FIREPLACE OWNER’S OPERATION AND INSTALLATION MANUAL MODELS M36(B,H), M42(B,H), VM36(B,H) AND VM42(B,H) MODELS M36P(B,H), M42P(B,H), VM36P(B,H) AND VM42P(B,H) WARNING: If the information in these instructions is not followed exactly, a fire or explosion may result causing property damage, personal injury or death.
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Page 2: Table Of Contents
WARNING: Improper installation, adjustment, altera- tion, service or maintenance can cause injury or prop- erty damage. Refer to this manual for correct installation and operational procedures. For assistance or addi- tional information consult a qualified installer, service agency or the gas supplier. NOT FOR USE WITH SOLID FUEL CHECK LOCAL CODES PRIOR TO INSTALLATION This book is valuable. -
Page 3: Safety Information
SAFETY INFORMATION WARNING: This product contains and/or generates chemicals known to the State of California to cause cancer or birth defects or other reproduc- tive harm. IMPORTANT: Read this owner’s manual carefully and completely before trying to assemble, op- erate or service this fireplace. Improper use of this fireplace can cause serious injury or death from burns, fire, explosions,... -
Page 4: Unpacking
DESA. Unless you use DESA approved components tested for this appliance, YOU MAY CAUSE A FIRE HAZARD! The DESA warranty will be voided by and DESA dis- claims any responsibility for the following actions : A) Modification of the appliance or any of the components. -
Page 5: Selecting Location
INTRODUCTION Continued WARNING: Installation of this appliance should be done by a qualified service person well trained in the installation of such appliances. You will also need a building permit from your local Building and Safety Commissioner before installing this appliance; otherwise your insurance co. -
Page 6: Product Specifications
" w/o Brick) 17 GAS RATING - NATURAL M36(B,H), VM36(B,H) M42(B,H), VM42(B,H) 40,000 Btu/Hr 3.5 in. WC (.87 kPa) # 30 GAS RATING - PROPANE/LP M36P(B,H), VM36P(B,H) M42P(B,H), VM42P(B,H) 40,000 Btu/Hr 10 in. WC (2.49 kPa) # 52 7" Alternate Gas Supply Inlet 7"... -
Page 7: Pre-Installation Preparation
PRE-INSTALLATION PREPARATION CLEARANCES Minimum clearances to combustibles are: • Back and Sides of Outer Surround . . . 0" min. • Drywall to Sides of Front Face (Nailing Flanges) ....0" min. •... - Page 8 VM36(B,H), VM36P(B,H) (622.3 mm) (1876.4 mm) (1326 mm) (438.2 mm) Figure 8 - Corner Installation Guidelines www.desatech.com M42(B,H), M42P(B,H) VM42(B,H), VM42P(B,H) " (1121 mm) " (587 mm) " (1226 mm) in Wall M42(B,H), M42P(B,H) VM42(B,H), VM42P(B,H) " " (700.1 mm) "...
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Page 9: Venting Installation
PRE-INSTALLATION PREPARATION Continued INSTALLING TRANSITION PIPE AND STARTER COLLAR The transition pipe and starter collar shown in Figure 9 are supplied with the fireplace, unattached and ready for installation. Remove the starter collar and set aside. Slide the transition pipe over the vent collar and attach with a minimum of three screws. - Page 10 VENTING INSTALLATION Listed Vent Cap Maintain Listed Clearance 12' Min. Position Firestop Maintain Listed Clearance EXAMPLE 1 Figure 10 - Typical B-Vent Configuration B-type connectors and the existing system must be code inspected for damage and proper installation. It is not recommended that this appliance be com- mon vented with an existing gas burning appliance.
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Page 11: Installation
VENTING INSTALLATION Continued CHECKING FOR PROPER VENTING After completing and checking the electrical, gas and vent connections, follow the lighting instructions and allow the main burner to run for approximately 5 minutes. Hold a lighted match or cigarette near the top edge of the fireplace opening and play it along the entire length of the opening (see Figure 12). - Page 12 INSTALLATION Continued OPTIONAL WIRELESS HAND-HELD REMOTE CONTROL INSTALLATION Note: If using optional wireless hand-held remote control, the wall switch is no longer operational. Installing Receiver 1. Remove the front refractory access panel by lifting up and angling out of the firebox opening (see Figure 13, page 11) to expose controls.
- Page 13 INSTALLATION Continued Installing 9-Volt Battery in Hand-Held Remote Control Unit 1. Remove battery cover on back of remote control unit. 2. Attach terminal wires to the battery (not in- cluded). Place battery into the battery housing. Note: Only use alkaline battery. 3.
- Page 14 Flexible Gas Line Gas Shutoff Do NOT Kink Valve Note: 1) Wire Connections Not Shown for Clarity 1/2" NPT 2) * 1/8" NPT Plugged Incoming Tapping Gas Line Figure 21 - Connecting Flexible Gas Line to Millivolt Valve Red Surface Indicates For Propane/LP Use Only Inlet Pressure Tap www.desatech.com...
- Page 15 Grate 0.5" 0.5" Figure 24 - Pan and Ember Material Clearances 108795-01N www.desatech.com...
- Page 16 INSTALLATION Continued LOG PLACEMENT FOR M42, M42P, VM42 AND VM42P MODELS 1. Place large back log (log 1) onto grate making sure notches rest over grate (see Figure 29). 2. Insert lower end of log 2A between the first two grate fingers and position the upper end into...
- Page 17 INSTALLATION Continued COMBUSTION AIR KIT MODEL AK4 (OPTIONAL) The outside air kit may be installed on the left side of the fireplace only. The vent can be installed through any outside wall a minimum of three feet below fireplace termination cap. The handle to operate the damper door for the outside air inlet will be located inside the left “screen pocket”...
- Page 18 INSTALLATION Continued 6. Repeat the process for the opposite door assembly. 7. To adjust the doors, slide them partially open. Using a screwdriver, loosen the hold-down screws in the spring clip (see Figure 36) and pivot plate. 8. Close both doors until evenly joined at the middle and note the gap at the outer edges of the face.
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Page 19: Operating Fireplace
OPERATING FIREPLACE FOR YOUR SAFETY READ BEFORE LIGHTING WARNING: If you do not fol- low these instructions exactly, a fire or explosion may result causing property damage, per- sonal injury or loss of life. A. This appliance has a pilot which must be lighted by hand. -
Page 20: Inspecting Burners
OPERATING FIREPLACE Continued 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. Fully open glass doors if installed. 4. Remove front hearth brick and control access panel. -
Page 21: Cleaning And Maintenance
INSPECTING BURNERS Continued Figure 42 - Correct Pilot Flame Pattern BURNER FLAME PATTERN Burner flames will be steady; not lifting or floating. Flames should go up through the middle of logset. Flames should not "spill" to the edges of the pan or sides of the logset. -
Page 22: Wiring Diagram
If so, contact DESAʼs Technical Service Department at 1-866-672-6040. When calling please have your model and serial numbers of your heater ready. You can also visit DESAʼs Technical Services web site at www.desatech.com. WIRING DIAGRAM THERMOPILE REPLACE FACTORY WIRING WITH 105°C... -
Page 23: Troubleshooting
Note: Before troubleshooting the system, make sure the gas shutoff valve is ON. The two most common causes of a malfunctioning gas appliance are: 1. Loose wiring connections 2. Construction debris clogging the pilot and/or gas control valve filter OBSERVED PROBLEM Pilot will not light Pilot will not stay lit No gas to burner, although wall... - Page 24 OBSERVED PROBLEM Pilot goes out when wall switch is ON Spark ignitor will not light pilot after repeated triggering of red button Fireplace produces a clicking/ ticking noise just after burner is lit or shut off TROUBLESHOOTING Continued POSSIBLE CAUSE 1.
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Page 25: Your Building
WARNING: If you smell gas • Shut off gas supply. • 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. -
Page 26: Illustrated Parts Breakdown And Parts List
ILLUSTRATED PARTS BREAKDOWN MODELS M36(B,H), M36P(B,H), M42(B,H), M42P(B,H), VM36(B,H), VM36P(B,H), VM42(B,H) AND VM42P(B,H) 35 34 www.desatech.com 59/60 108795-01N... -
Page 27: Parts List
This list contains replaceable parts used in your heater. When ordering parts, follow the instructions listed under Replacement Parts on page 22 of this manual. M36(B,H) M42(B,H) VM36(B,H) VM42(B,H) DESCRIPTION QTY 14153 14153 106642-01 106642-01 Air Rod 106643-01 106643-01 Damper Rod 106651-01 107805-01 Panel Closure 106657-02 107811-02 Air Separator 11408... - Page 28 ILLUSTRATED PARTS BREAKDOWN BRICK LINERS FOR MODELS M36(B,H), M36P(B,H), VM36(B,H) AND VM36P(B,H) M36(B,H) M42(B,H) VM36(B,H) VM42(B,H) DESCRIPTION 106658-02 107812-02 Left Refractory, Std. Brick (M36B/M42B) 108164-02 108169-02 Left Refractory, Herringbone (M36H/M42H) 106658-01 107812-01 Left Refractory, Std. Brick (VM36B/VM42B) 108164-01 108169-01 Left Refractory, Herringbone (VM36H/VM42H) 106659-02 107814-02 Right Refractory, Std.
- Page 29 ILLUSTRATED PARTS BREAKDOWN LOGSETS FOR MODELS M36(B,H), M36P(B,H), VM36(B,H) AND VM36P(B,H) PART NUMBER 107999-01 108724-01 901098-01 108720-01 108721-01 108722-01 108723-01 108795-01N DESCRIPTION Log Set Right Front 9" Split Log Rear Log Top Right Log - 11 Top Right Log - 16" Top Left Log - 13 Top Left Log - 11"...
- Page 30 ILLUSTRATED PARTS BREAKDOWN LOGSETS FOR MODELS M42(B,H), M42P(B,H), VM42(B,H) AND VM42P(B,H) PART NUMBER 107999-02 901098-02 108723-01 108839-01 108722-01 108838-01 108721-01 108720-01 DESCRIPTION Log Set Rear Log Left Front Log - 11" Right Front Log - 15 Top Left Log - 13 Inside Top Left Log - 15 Inside Top Right Log - 16"...
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Page 31: Accessories
NOTICE: All accessories may not be available for all fireplace models. Purchase these firebox accessories from your local dealer. If they can not supply these accessories, call DESAʼs Sales Department at 1-866-672-6040 for information. You can also write to the address listed on the back page of this manual. -
Page 32: Warranty Information
We make no other warranty, expressed or implied. DESA warrants this product to be free from defects in materials and components for four (4) years from the date of first purchase, provided that the product has been properly installed, operated and maintained in accordance with all applicable instructions.