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Desa Flame-Max VYM27NR Owner's Operation And Installation Manual

Unvented vent-free
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FLAME-MAX
VYM27NR AND VYM27PR
Remote Control Ready Models
Also Design-Certified As A Vented Decorative Appliance
WARNING: If the information in this manual is not
followed exactly, a fire or explosion may result causing
property damage, personal injury or loss of life.
— 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.
WARNING: This is an unvented gas-fired heater. It
uses air (oxygen) from the room in which it is installed.
Provisions for adequate combustion and ventilation
air must be provided. Refer to Air for Combustion and
Ventilation section on page 6 of this manual.
INSTALLER: Leave this manual with the appliance.
CONSUMER: Retain this manual for future reference.
®
Multi-Sided Log Design
For more information, visit www.desatech.com
UNVENTED (VENT-FREE) GAS
LOG HEATER
OWNER'S OPERATION AND
INSTALLATION MANUAL
Patent Pending

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Summary of Contents for Desa Flame-Max VYM27NR

  • Page 1 INSTALLATION MANUAL Patent Pending ® Multi-Sided Log Design FLAME-MAX VYM27NR AND VYM27PR Remote Control Ready Models Also Design-Certified As A Vented Decorative Appliance WARNING: If the information in this manual is not followed exactly, a fire or explosion may result causing property damage, personal injury or loss of life.

  • Page 2: Table Of Contents

    TAbLE OF CONTENTS Safety ..............2 Cleaning and Maintenance ........ 23 Product Identification ........... 5 Wiring Diagram ..........24 Local Codes............5 Troubleshooting ..........24 Unpacking............5 Specifications ............ 28 Product Features ..........5 Replacement Parts ..........28 Remote Control Accessories ....... 6 Service Hints .............
  • Page 3 SAFETY Continued Do not place clothing or other DANGER: Carbon monoxide flammable material on or near poisoning may lead to death! the appliance. Never place any objects on the heater. Carbon Monoxide Poisoning: Early signs of carbon monoxide poisoning resemble the flu, with headaches, dizziness, or nausea.
  • Page 4 SAFETY Continued 4. If you smell gas 12. This heater needs fresh, outside air ven- tilation to run properly. This heater has an • shut off gas supply oxygen depletion sensing (ODS) pilot light • do not try to light any appliance safety system.

  • Page 5: Product Identification

    PRODUCT IDENTIFICATION UNPACkING Piezo CAUTION: Do not remove the Log Set Ignitor data plates from the grate assem- bly. The data plates contain impor- tant product information warranty and safety information. Optional Remote 1. Remove logs and heater base assembly Control from carton.

  • Page 6: Remote Control Accessories

    REMOTE CONTROL ACCESSORIES There are 4 optional controls that can be pur- See Accessories, page 29. chased separately for this log heater: Note: The wall thermostat or hand-held • wall switch thermostat may not be used where vented decorative listing is required. •...
  • Page 7 AIR FOR COMbUSTION AND VENTILATION Continued DETERMINING FRESH-AIR FLOW Example: 51,200 Btu/Hr (maximum the space can support) FOR HEATER LOCATION 73,000 Btu/Hr (actual amount of Btu/Hr Determining if You Have a Confined or used) Unconfined Space The space in this example is a confined space Use this work sheet to determine if you have because the actual Btu/Hr used is more than the a confined or unconfined space.

  • Page 8: Installation

    AIR FOR COMbUSTION AND VENTILATION Continued items directly to the outdoors or spaces open to the outdoors. These spaces include attics 12" and crawl spaces. Follow the National Fuel Gas Code, ANSI Z223.1/NFPA 54, Air for Ventilation Combustion and Ventilation for required size Ventilation Grills Grills Into Into Adjoining Room,...
  • Page 9 INSTALLATION Continued INSTALLATION AND CLEARANCES WARNING: Never install the (Vent-Free Operation Only) heater WARNING: Maintain the • in a bedroom or bathroom minimum clearances. If you unless installed as a vented can, provide greater clearances appliance, see page 12 from floor, ceiling, and adjoin- •...
  • Page 10 INSTALLATION Continued at least 8" up. If noncombustible material is NOTICE: Manual control heaters less than 12", you must install the fireplace may be used as a vented product. hood accessory. Even if noncombustible If so, you must always run heater material is more than 12", you may need the with chimney flue damper open.
  • Page 11 INSTALLATION Continued Mantel Shelf 10" 8" Underside of Mantel 6" Shelf " Minimum minimum Noncombustible distances Material are in inches 12" 18" 20" 22" 24" Top of Fireplace Minimum Distances to Opening Noncombustible Underside of Material Height Mantel Figure 6 - Minimum Mantel Clearances Without Using Hood Mantel Shelf 12"...
  • Page 12 INSTALLATION Continued MANTEL CLEARANCES In addition to meeting noncombustible mate- rial clearances, you must also meet required clearances between fireplace openings and Combustible mantel shelf on each side of the fireplace. If Material 14" you do not meet the clearances listed below, Min.

  • Page 13: Safety Information

    INSTALLATION Continued See chart below for minimum permanent flue WARNING: If installing in a opening you must provide. Attach damper clamp so the minimum permanent flue open- sunken fireplace, special care ing will be maintained at all times. is needed. You must raise the fireplace floor to allow access to Chimney Height Minimum permanent...
  • Page 14 INSTALLATION Continued 3. Place heater base in fireplace. WARNING: Never connect 4. Place logs in their proper position on heater natural gas heater to private base. See Installing Logs, page 17. (non-utility) gas wells. This 5. Center heater base and logs front-to-back and side-to-side in fireplace.
  • Page 15 INSTALLATION Continued CAUTION: Use only new, WARNING: Use pipe joint black iron or steel pipe. Inter- sealant that is resistant to liquid petroleum (LP) gas. nally-tinned copper tubing may be used in certain areas. Check We recommend that you install sediment trap your local codes.
  • Page 16 INSTALLATION Continued pRESSURE TESTING GAS SUppLY Equipment Shutoff Valve pIpING SYSTEM Test pressures In Excess Of 1/2 pSIG Gas Meter (14" W.C.) 1. Disconnect appliance with its appliance main gas valve (control valve) and equip- ment shutoff valve from gas supply piping system.
  • Page 17 INSTALLATION Continued INSTALLING LOGS 3. Position log piece (#3) by aligning holes on underside with remaining pegs on bot- WARNING: Failure to position tom log as illustrated in Figure 21. Do not block burner ports. the parts in accordance with these 4.

  • Page 18: Operation

    OPERATION FOR YOUR SAFETY LIGHTING READ BEFORE LIGHTING INSTRUCTIONS WARNING: If you do not fol- WARNING: low these instructions exactly, • If fireplace has glass doors, a fire or explosion may result never operate this heater with causing property damage, per- glass doors closed.
  • Page 19 OPERATION Continued 5. Wait five (5) minutes to clear out any gas. 10. Wait one minute and switch selector Then smell for gas, including near the switch to the ON position to light burner. floor. If you smell gas, STOP! Follow “B” Note: AUTO is only functional when using in the safety information, page 18.
  • Page 20 OPERATION Continued TO TURN OFF GAS Piezo Flame Control Knob Ignitor Adjustment Knob in On Position TO AppLIANCE 1. Turn control knob clockwise to the OFF position. 2a. Set selector switch in the OFF position. REMOTE 2b. If Using Optional Hand-Held Remote: Set selector switch in the OFF position to Selector Switch in Remote Position prevent draining battery.
  • Page 21 OPERATION Continued THERMOSTAT SERIES (MODEL Note: Do not leave the hand-held remote in the AUTO mode close to the fireplace. The HRC200) radiant heat from the fireplace will turn off the The hand-held remote can be operated using fireplace. Ideally, place the hand-held remote either the manual mode (MANU) or thermo- in the center of the room facing towards the static mode (AUTO) (see Figure 27).

  • Page 22: Inspecting Burners

    INSPECTING bURNERS BURNER FLAME PATTERN Check pilot flame pattern and burner flame patterns often. Figure 30 shows a correct burner flame pat- pILOT FLAME pATTERN tern. Figure 31 shows an incorrect burner flame pattern. Figure 28 shows a correct pilot flame pattern. Figure 29 shows an incorrect pilot flame pat- If burner flame pattern is incorrect as shown tern.

  • Page 23: Cleaning And Maintenance

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

  • Page 24: Wiring Diagram

    WIRING DIAGRAM Note: For proper operation of optional acces- sories, the wires from the switch to the control must be connected exactly as shown. Thermopile TROUbLESHOOTING WARNING: Turn off heater and let cool before servicing. Only a qualified service person should service and repair heater. CAUTION: Never use a wire, needle, or similar object to clean ODS/pilot.
  • Page 25 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 in 2. After ODS/pilot lights, keep long enough control knob pressed in 30 seconds...
  • Page 26 TROUbLESHOOTING Continued OBSERVED PROBLEM POSSIBLE CAUSE REMEDY Slight smoke or odor during 1. Not enough air 1. Check burner for dirt and initial operation debris. If found, clean burner (see Cleaning and Maintenance, page 23) 2. Gas regulator defective 2. Replace gas control 3.
  • Page 27 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 28: Specifications

    • heater will not produce specified heat serial numbers of your heater ready. • propane/LP gas supply may be low You can also visit DESA Heating, LLC’s web You may feel your gas pressure is too low. If site at www.desatech.com.

  • Page 29: Accessories

    ACCESSORIES Purchase these accessories from your local dealer. If they can not supply these accessories call DESA Heating, LLC at 1-866-672-6040 for information. You can also write to the address listed on the back page of this manual. RECEIVER AND HAND-HELD...

  • Page 30: Parts

    PARTS MODELS VYM27NR AND VYM27PR Note: Part numbers 22 and 23 are for natural gas model only. www.desatech.com 121353-01F...

  • Page 31: Parts List

    PARTS LIST This list contains replaceable parts used in your heater. When ordering parts, follow the instructions listed under Replacement Parts on page 28 of this manual. PART NO. DESCRIpTION QTY. 104676-01 Log, Multi-Sided • • 105060-01 Bottom Log (#1) •...

  • Page 32: Warranty

    This is DESA Heating, LLC’s exclusive warranty, and to the full extent allowed by law; this express warranty excludes any and all other warranties, express or implied, written or verbal and limits the duration of any and all implied warranties, including warranties of merchantability and fitness for a particular purpose to four (4) years on new products and 30 days on factory reconditioned products from the date of first purchase.

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