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Desa Unvented (Vent-Free) Gas Compact Classic Hearth Fireplace VMH26NRB Owner's Operation And Installation Manual

Unvented (vent-free) gas compact classic hearth fireplace
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COMPACT CLASSIC HEARTH
OWNER'S OPERATION AND INSTALLATION MANUAL
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.
INSTALLER: Leave this manual with the appliance.
CONSUMER: Retain this manual for future reference.
For more information, visit www.desatech.com
UNVENTED (VENT-FREE) GAS
REMOTE-READy MODELS
VMH26PRB AND VMH26NRB
FIREPLACE
®
Shown with
optional cabinet
mantel/hearth
base accessory

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Summary of Contents for Desa Unvented (Vent-Free) Gas Compact Classic Hearth Fireplace VMH26NRB

  • Page 1 UNVENTED (VENT-FREE) GAS COMPACT CLASSIC HEARTH FIREPLACE ® OWNER’S OPERATION AND INSTALLATION MANUAL Shown with optional cabinet mantel/hearth base accessory REMOTE-READy MODELS VMH26PRB AND VMH26NRB 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.

  • Page 2: Table Of Contents

    TABLE OF CONTENTS Safety ..............2 Cleaning and Maintenance ........ 28 Product Identification ........... 4 Wiring Diagram ..........29 Optional Remote Control Accessories ....4 Troubleshooting ..........30 Local Codes............4 Specifications ............ 34 Product Features ..........5 Replacement Parts ..........34 Unpacking............
  • Page 3 SAFETy Continued Make certain you read and understand all Carefully supervise young chil- warnings. Keep this manual for reference. It dren when they are in the room is your guide to safe and proper operation of with fireplace. When using the this fireplace.

  • Page 4: Product Identification

    SAFETy Continued Note: During initial operation, slight smoking 12. Do not use this fireplace to cook food or could occur due to log curing and fireplace burn paper or other objects. burning manufacturing residues. 13. Never place any objects in the fireplace 8.

  • Page 5: Product Features

    LOCAL CODES PRODUCT FEATURES Continued SAFETY PILOT This fireplace has a pilot with an Oxygen Deple- State of Massachusetts: The installation tion Sensing (ODS) safety shutoff system. The must be made by a licensed plumber or gas fit- ODS/pilot is a required feature for vent-free ter in the Commonwealth of Massachusetts.

  • Page 6: Air For Combustion And Ventilation

    ASSEMBLy Continued 7. Gently rotate hood to upright position. 8. Align screw holes on hood with screw Make sure hood tabs are behind louvers holes on firebox top. and hood is resting on firebox top (see 9. Insert screws as shown in Figure 3, page Figure 3,).
  • Page 7 AIR FOR COMBUSTION AND VENTILATION Continued c. caulking or sealants are applied to If additional ventilation to adjoining room is supplied with grills or openings, add the areas such as joints around window volume of these rooms to the total volume and door frames, between sole plates of the space.
  • Page 8 AIR FOR COMBUSTION AND VENTILATION Continued B. Vent room directly to the outdoors. See Ventilation Air From Outdoors. 12" C. Install a lower Btu/Hr fireplace, if lower Btu/Hr size makes room unconfined. Ventilation Grills If the actual Btu/Hr used is less than the Into Adjoining Room, Ventilation Option 2...

  • Page 9: Installation

    INSTALLATION installing fireplace in rooms without enough NOTICE: This heater is intended ventilation air may cause mildew to form from for use as supplemental heat. too much moisture. See Air for Combustion Use this heater along with your and Ventilation, page 6. primary heating system.

  • Page 10: Fireplace Clearances

    INSTALLATION Continued Minimum Clearances For Side FIREPLACE CLEARANCES Combustible Material, Side Wall, and Ceiling WARNING: Maintain the A. Clearances from the side of the fireplace minimum clearances shown cabinet to any combustible material and in Figure 6. If you can, provide wall should follow diagram in Figure 6.
  • Page 11 INSTALLATION Continued Note: If not installing blower accessory, 4. If you have not assembled firebox, follow you may wish to run electrical wiring to instructions beginning on page 5. your fireplace for future blower installation 5. Carefully set fireplace in front of rough (see Accessories, page 35).
  • Page 12 INSTALLATION Continued Mantel Shelf 10" Note: WARNING: Do not allow 8" All vertical noncombustible materials to measurements 6" are from top of cover any necessary openings " fireplace like louvered slots. opening to bottom of mantel shelf. All measurements WARNING: Never modify or are in inches.
  • Page 13 INSTALLATION Continued 4. Route flexible gas line through access hole in hearth base. Cabinet 5. Center cabinet mantel on hearth base Mantel (see Figure 12). Make sure mantel is flush against wall and centered left to Assembled right on base. Trim 6.
  • Page 14 INSTALLATION Continued INSTALLING OPTIONAL bLOWER 1. Install snap bushings found in hardware kit into both holes in rear of valve cover ACCESSORY GA3450TA shield. Removing Upper Louver Assembly and 2. Make sure the wire harness is firmly branch Support connected to the terminals on the blower To install the blower accessory, you must first bracket assembly.
  • Page 15 INSTALLATION Continued Blower Bracket Wire Wiring Routing Assembly Harness Hole in Baffle Baffle Screw Blower Mounting Holes Power Cord Snap Switch Bushing Switch Plate Blue Black Wire Harness Valve Cover Shield Lower Louver Door Figure 16 - Installing Blower Bracket Assembly Fan Switch (Auto/Off/On) Auto...
  • Page 16 INSTALLATION Continued For Built-In Installation 2. Follow steps 2 through 6 in Installing Blower Accessory, page 14. WARNING: A licensed elec- 3. A licensed electrician must follow the wir- trician must connect the wiring ing diagram to connect incoming electri- harness to electrical supply cal supply to fan kit wiring harness (see Figure 19).
  • Page 17 INSTALLATION Continued CONNECTING TO GAS SUPPLY CAUTION: Use only new, black iron or steel pipe. Inter- WARNING: This appliance nally-tinned copper tubing may requires a 45° male flare fitting be used in certain areas. Check 5/8"-18 UNF (Unified National your local codes. Use pipe of Fine Thread) inlet connection and 1/2"...
  • Page 18 INSTALLATION Continued We recommend that you install a sediment 2. Route flexible gas line, included, from trap in supply line as shown in Figure 22. Lo- fireplace control to equipment shutoff cate sediment trap where it is within reach for valve through side or rear access holes cleaning.

  • Page 19: Connecting To Gas Supply

    INSTALLATION Continued CHECKING GAS CONNECTIONS 2. Pressurize supply piping system by either opening propane/LP supply tank valve WARNING: Test all gas piping for propane/LP gas or opening main gas valve located on or near gas meter for and connections, internal and natural gas, or using compressed air.
  • Page 20 INSTALLATION Continued PRESSURE TESTING FIREPLACE GAS 7. Connect wires as shown in Figure 31. CONNECTIONS 8. Install remote receiver unit onto fireplace 1. Open equipment shutoff valve (see Figure base using two screws removed in step 25, page 19). one (see Figure 30). 2.
  • Page 21 INSTALLATION Continued Battery Cover 3. Route 25 ft. wire to a convenient location Remote Control Unit to mount your thermostat (no outside wall). IMPORTANT: Wire may be short- ened but must not be lengthened. Thermostat should be mounted 54" above Terminal the floor in a location where there is good Wires...
  • Page 22 INSTALLATION Continued 8. Move temperature adjustment back WARNING: Do not connect and forth to insure bimetal is free from restrictions. the switch to a power source. 9. Replace cover onto base. (Upon installa- Electrical shock and/or fire haz- tion, thermostat must be allowed to sta- ard will occur.

  • Page 23: Operation

    OPERATION FOR YOUR SAFETY NOTICE: During initial operation READ BEFORE LIGHTING of new fireplace, burning logs will give off a paper-burning smell. WARNING: If you do not fol- Open window to vent smell. This low these instructions exactly, will only last a few hours. a fire or explosion may result causing property damage, per- 1.
  • Page 24 OPERATION Continued Note: If pilot does not stay lit, contact a WARNING: Make sure the qualified service person or gas supplier for repairs. Until repairs are made, light selector switch is in the OFF pilot with match. To light pilot with match, position when you are away from see Manual Lighting Procedure.
  • Page 25 OPERATION Continued THERMOSTAT SERIES (MODEL HRC200) NOTICE: You must light the pilot The hand-held remote can be operated using before using the hand-held re- either manual mode (MANU) or thermostatic mote control unit. See Lighting mode (AUTO) (see Figure 41). To select Fahr- Instructions on page 23.
  • Page 26 OPERATION Continued Safety Features GWMS2 WALL MOUNTED When away from home for an extended period SWITCH (OPTIONAL) of time or as a child safety feature to prevent Make sure heater switch is on AUTO. This wall accidental ignition of the fireplace, the receiver switch works just like the conventional light ON/OFF/REMOTE switch should be in the switch.

  • Page 27: Inspecting Burners

    INSPECTING BURNERS bURNER FLAME PATTERN Check pilot flame pattern and burner flame patterns often. Figure 45 shows a correct burner flame pat- tern. Figure 46 shows an incorrect burner PILOT FLAME PATTERN flame pattern. The incorrect burner flame Figure 43 shows a correct pilot flame pattern. pattern shows sporadic, irregular flame tip- Figure 44 shows an incorrect pilot flame pat- ping.

  • Page 28: Cleaning And Maintenance

    CLEANING AND MAINTENANCE 4. Check injector holder located at end of WARNING: Turn off fireplace burner tube again. Remove any large particles of dust, dirt, lint, or pet hair with and let cool before cleaning. a soft cloth or vacuum cleaner nozzle. 5.

  • Page 29: Wiring Diagram

    CLEANING AND MAINTENANCE Continued LOG SET CABINET • If you remove one-piece log set for clean- Air Passageways ing, refer to Installing Log Set and Screen, Use a vacuum cleaner or pressurized air to page 22, for placement instructions. clean. •...

  • Page 30: Troubleshooting

    TROUBLESHOOTING WARNING: Turn off and unplug fireplace and let cool before servicing. Only a qualified service person should service and repair fireplace. CAUTION: Never use a wire, needle, or similar object to clean ODS/pilot. This can damage ODS/pilot unit. Note: All troubleshooting items are listed in order of operation. ObSERVED PRObLEM POSSIbLE CAUSE REMEDY...
  • Page 31 TROUBLESHOOTING Continued ObSERVED PRObLEM POSSIbLE CAUSE REMEDY ODS/pilot lights but flame 1. Control knob not fully 1. Press in control knob fully goes out when control knob pressed in is released 2. Control knob not pressed 2. After ODS/pilot lights, keep in long enough control knob pressed in 30 seconds...
  • Page 32 TROUBLESHOOTING Continued ObSERVED PRObLEM POSSIbLE CAUSE REMEDY Slight smoke or odor during 1. Residues from manufac- 1. Problem will stop after a few initial operation turing processes and log hours of operation curing 2. Not enough air 2. Check burner for dirt and debris.
  • Page 33 TROUBLESHOOTING Continued 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. Fol- low the gas supplier’s instructions.

  • Page 34: Specifications

    SPECIFICATIONS VMH26NRb VMH26PRb • Rating: 14,000/26,000 Btu/Hr • Rating: 14,000/26,000 Btu/Hr • Gas Type: Natural Gas Only • Gas Type: Propane/LP Gas Only • Ignition: Piezo • Ignition: Piezo • Manifold Pressure: 3.5" W.C. • Manifold Pressure: 8" W.C. • Inlet Gas Pressure (in. of water): •...

  • Page 35: Accessories

    ACCESSORIES CORNER MANTEL WITH FULL Purchase these accessories from your local dealer. If they can not supply these accessories HEARTH BASE call DESA Heating, LLC at 1-866-672-6040 for C26TU - Unfinished, Traditional Design information. You can also write to the address C26TO - Oak Finished, Traditional Design listed on the back page of this manual.

  • Page 36: Parts

    PARTS MODELS VMH26PRb AND VMH26NRb www.desatech.com 113110-01H...
  • Page 37 PARTS This list contains replaceable parts used in your fireplace. When ordering parts, follow the instructions listed under Replacement Parts on page 34 of this manual. NO. PART NO. DESCRIPTION QTY. 102633-02 Outer Casing Top • • 102624-02 Outer Casing •...
  • Page 38 NOTES _____________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ _____________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ _____________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ www.desatech.com 113110-01H...
  • Page 39 NOTES _____________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ _____________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ _____________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ 113110-01H www.desatech.com...

  • Page 40: Warranty

    WARRANTy kEEP THIS WARRANTy Model (located on product or identification tag) _____________________________ Serial No. (located on product or identification tag) __________________________ Date Purchased __________________________ Keep receipt for warranty verification. DESA HEATING, LLC LIMITED WARRANTIES New Products Standard Warranty: DESA Heating, LLC warrants this new product and any parts thereof to be free from defects in material and workmanship for a period of four (4) years from the date of first purchase from an authorized dealer provided the product has been installed, maintained and operated in accordance with DESA Heating, LLC’s warnings and instructions.

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