Design Dynamics VF-18P-PDG Owner's Operation And Installation Manual

Design Dynamics VF-18P-PDG Owner's Operation And Installation Manual

Unvented (vent-free) gas log heater

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VF-24N-PDG, VF-24P-PDG,
VF-18N-PDG, VF-18P-PDG
Design Dynamics Vent-free Mod els Also De sign-Cer ti fi ed As Vented Dec o ra tive Ap pli anc es
WARNING: If the information in this man u al
is not followed exactly, a fi re or explosion
may result caus ing prop er ty damage, per-
son al in ju ry, or loss of life.
— Do not store or use gasoline or other
fl ammable vapors and liq uids in the vicinity
of this or any other ap pli ance.
— 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 build ing.
• Immediately call your gas sup pli er from
a neigh bor's phone. Follow the gas sup-
pli er's in struc tions.
• If you cannot reach your gas sup plier, call
the fi re de part ment.
— Installation and service must be per formed
by a qualifi ed installer, ser vice agen cy, or
the gas supplier.
WARNING: This is an unvented gas-fi red heat er. It uses air (ox y gen) from the room in which it
is installed. Pro vi sions for ad e quate com bus tion and ven ti la tion air must be pro vid ed. Refer
to Air for Com bus tion and Ven ti la tion sec tion on page 4 of this manual.
This appliance may be installed in an aftermarket,* manufactured (mobile) home, where not
pro hib it ed by local codes.
This appliance is only for use with the type of gas indicated on the rating plate. This ap pli ance
is not convertible for use with other gases.
Warning: This product must be installed by a Licensed Plumber or Gas Fitter when installed
within The Commonwealth of Massachusetts.
* Aftermarket: Completion of sale, not for purpose of resale, from the manufacturer
UNVENTED (VENT-FREE) GAS LOG HEAT ER
OWNER'S OP ER A TION AND IN STAL LA TION MANUAL
For more information, visit www.desatech.com
Save this manual for future reference.
VF-24N-BTB, VF-24P-BTB,
VF-18N-BTB, VF-18P-BTB
WARNING: Improper in stal la tion, ad just -
ment, al tera tion, service, or main te nance
can cause injury or prop er ty dam age. Re fer
to this man u al for cor rect in stal la tion and
op er a tion al pro ce dures. For as sis tance
or ad di tional in for ma tion con sult a quali-
fi ed in stall er, ser vice agen cy, or the gas
sup plier.
WARNING: This appliance is for in stal -
la tion only in a solid-fuel burning masonry
or UL127 factory-built fi replace, or in an
ap proved ventless fi rebox. It is design-
cer ti fi ed for these installations in ac cor -
dance with ANSI Z21.11.2. Exception: Do
not in stall this ap pli ance in a factory-built
fi re place that in cludes instructions stat ing
it has not been tested or should not be
used with unvented gas logs.

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Summary of Contents for Design Dynamics VF-18P-PDG

  • Page 1 VF-24N-PDG, VF-24P-PDG, VF-18N-PDG, VF-18P-PDG Design Dynamics Vent-free Mod els Also De sign-Cer ti fi ed As Vented Dec o ra tive Ap pli anc es WARNING: If the information in this man u al is not followed exactly, a fi re or explosion may result caus ing prop er ty damage, per- son al in ju ry, or loss of life.
  • Page 2: Table Of Contents

    TABLE OF CONTENTS SAFETY INFORMATION TABLE OF CONTENTS SAFETY INFORMATION ...2 PRODUCT IDENTIFICATION ...3 OPTIONAL REMOTE CONTROL ACCESSORIES ...4 LOCAL CODES ...4 UNPACKING ...4 PRODUCT FEATURES ...4 AIR FOR COMBUSTION AND VENTILATION ...4 INSTALLATION ...7 OPERATING HEATER ...14 INSPECTING BURNERS ...17 SAFETY INFORMATION WARNINGS IMPORTANT: Read this owner’s manual carefully and...
  • Page 3: Safety Information

    SAFETY INFORMATION Continued This appliance is only for use with the type of gas indicated on the rating plate. This appliance is not convertible for use with other gases. Do not place propane/LP supply tank(s) inside any structure. Lo cate propane/LP supply tank(s) outdoors (propane/LP units only).
  • Page 4: Optional Remote Control Accessories

    OPTIONAL REMOTE CONTROL ACCESSORIES LOCAL CODES UNPACKING PRODUCT FEATURES AIR FOR COMBUSTION AND VENTILATION Providing Adequate Ventilation OPTIONAL REMOTE CONTROL ACCESSORIES There are four optional remote controls that can be purchased separately for Remote-Ready Models Only: • wall switch • hand-held ON/OFF remote •...
  • Page 5: Determining Fresh-Air Flow For Heater Location

    Add the Btu/Hr of all fuel burning ap pli anc es in the space. Vent-free heater Gas wa ter heater* Gas fur nace Vented gas heater Gas fi re place logs Other gas appliances* + Total * Do not include direct-vent gas ap pli anc es. Direct-vent draws com- bus tion air from the outdoors and vents to the outdoors.
  • Page 6: Ventilation Air

    AIR FOR COMBUSTION AND VENTILATION Ventilation Air AIR FOR COMBUSTION AND VENTILATION Continued VENTILATION AIR Ventilation Air From Inside Building This fresh air would come from an adjoining unconfi ned space. When ventilating to an adjoining unconfi ned space, you must pro vide two permanent open ings: one within 12"...
  • Page 7: Installation

    INSTALLATION NOTICE: This heater is in tend ed for use as sup ple - men tal heat. Use this heater along with your pri ma ry heat ing system. Do not in stall this heat er as your pri- ma ry heat source. If you have a central heating system, you may run sys tem’s cir cu lat ing blower while us ing heater.
  • Page 8 INSTALLATION Installation and Clearances for Vent-Free Operation (Cont.) INSTALLATION Continued Carefully follow the instructions below. This will ensure safe in- stal la tion into a masonry, UL127-listed manufactured fi replace, or list ed vent-free fi re box. Minimum Clearances For Side Combustible Material, Side Wall, and Ceiling A.
  • Page 9: Mantel Clearances

    INSTALLATION Continued MANTEL CLEARANCES In addition to meeting noncom bus ti ble ma te ri al clearances, you must also meet required clearances between fi replace open ing and mantel shelf. If you do not meet the clear anc es listed below, you will need a hood. Determining Minimum Mantel Clearance If you meet min i mum clear ance be tween mantel shelf and top of fi...
  • Page 10: Installing Damper Clamp Accessory For Vented Operation

    INSTALLATION Installing Damper Clamp Accessory for Vented Operation Installing Heater Assembly INSTALLATION Continued INSTALLING DAMPER CLAMP ACCESSORY FOR VENTED OPERATION Note: When used as a vented decorative, ap pli ance must be installed only in a solid-fuel burning fi replace with a working fl ue and con- structed of noncombustible material.
  • Page 11: Connecting To Gas Supply

    INSTALLATION Continued WARNING: This appliance requires a 3/8" NPT (National Pipe Thread) inlet connection to the pres- sure regulator. WARNING: A qualifi ed ser vice per son must con- nect heater to gas sup ply. Follow all local codes. CAUTION: Never connect propane/LP fi replace directly to the propane/LP supply.
  • Page 12: Checking Gas Connections

    INSTALLATION Connecting To Gas Supply (Cont.) Checking Gas Connections INSTALLATION Continued CSA Design-Certifi ed Equipment Shutoff Valve With 1/8" NPT Tap* Approved Flexible Gas Hose (if allowed by local codes) 3" Minimum Gas Control Pipe Cap Nipple Sediment Trap Figure 13 - Gas Connection (Remote-Ready Models Only) * Purchase the optional CSA design-cer ti fi...
  • Page 13 INSTALLATION Continued Equipment Shutoff Valve Propane/LP Supply Tank Figure 15 - Checking Gas Joints (propane/LP only) Thermostat Gas Valve or Control Valve Location Gas Meter Figure 16 - Checking Gas Joints (Natural Gas Only) For more information, visit www.desatech.com 111826-01F Thermostat Gas Valve or Control Valve Location...
  • Page 14: Operating Heater

    OPERATING HEATER (REMOTE-READY MODELS) For Your Safety Read Before Lighting Lighting Instructions OPERATING HEATER REMOTE-READY MODELS FOR YOUR SAFETY READ BEFORE LIGHTING WARNING: If you do not fol low these instructions exactly, a fi re or ex plo sion may result caus ing prop er ty damage, personal injury or loss of life.
  • Page 15: To Turn Off Gas To Appliance

    OPERATING HEATER Continued 7. With control knob pressed in, press and release ignitor but- ton. This will light pilot. The pilot is attached to the front burner. If needed, keep press ing ig ni tor button until pilot lights. Note: If pilot does not stay lit, con tact a qualifi ed service person or gas sup pli er for repairs.
  • Page 16 OPERATING HEATER (REMOTE-READY MODELS) Remote Control Operation (Cont.) OPERATING HEATER Continued IMPORTANT: Do not leave the se lec tor switch in the RE- MOTE or ON position when the pilot is not lit. This will drain the battery. Press the ON/OFF button to turn the burners on and off. When turning burners off, the pilot will remain lit.
  • Page 17: Inspecting Burners

    INSPECTING BURNERS Check pilot fl ame pattern and burner fl ame patterns often. PILOT FLAME PATTERN Figure 22 shows a correct pilot fl ame pat tern. Figure 23 shows an incorrect pilot fl ame pattern. The incorrect pilot fl ame is not touch ing the thermo couple.
  • Page 18: Cleaning And Maintenance

    CLEANING AND MAINTENANCE Cleaning Burner Injector Holder and Pilot Air Inlet Hole CLEANING AND MAINTENANCE WARNING: Turn off heater and let cool before cleaning. CAUTION: You must keep control areas, burners, and cir cu lat ing air pas sage ways of heat er clean. In- spect these areas of heater before each use.
  • Page 19: Troubleshooting

    TROUBLESHOOTING Note: For additional help, visit DESA technical service web site at www.desatech.com. Note: All troubleshooting items are listed in order of operation. OBSERVED PROBLEM When ignitor button is pressed, there is no spark at ODS/pilot When ignitor button is pressed, there is spark at ODS/pilot but no ig ni tion ODS/pilot lights but fl...
  • Page 20 TROUBLESHOOTING TROUBLESHOOTING Continued OBSERVED PROBLEM One or both burner does not light after ODS/pilot is lit Delayed ignition of burner Burner backfi ring dur ing com bus tion Orange flame in burner during burner com bus tion Slight smoke or odor during initial op- er a tion Heater produces a whis tling noise when burners are lit...
  • Page 21 TROUBLESHOOTING Continued WARNING: If you smell gas • Shut off gas supply. • Do not try to light any ap pli ance. • Do not touch any elec tri cal switch; do not use any phone in your build ing. •...
  • Page 22: Specifications

    3.5" W.C. Inlet Gas Pressure (in. of water) Maximum 10.5" W.C. Minimum* 5.0" W.C. Shipping Weight 32 lbs. * For purpose of input adjustment VF-18P-PDG/VF-18P-BTB Btu (Variable) 24,000/36,000 Type Gas Propane/LP Only Ignition Piezo Manifold Pressure 10" W.C. Inlet Gas Pressure (in. of water) Maximum 14"...
  • Page 23: Wiring Diagram

    Usually, we will ask you to return the part to the factory. PARTS NOT UNDER WARRANTY Contact authorized dealers of this product. If they can’t supply origi- nal re place ment part(s), call DESA at 1-866-672-6040 for re fer ral in for ma tion. When calling DESA, have ready •...
  • Page 24: Illustrated Parts Breakdown

    ILLUSTRATED PARTS BREAKDOWN VF-18N-PDG, VF-18P-PDG, VF-18N-BTB, VF-18P-BTB ILLUSTRATED PARTS BREAKDOWN REMOTE-READY MODELS AND REMOTE CONTROLLED MODELS VF-18N-PDG VF-18N-BTB VF-18P-PDG VF-18P-BTB REMOTE MODELS ONLY For more information, visit www.desatech.com Log sets and mounting plates are ordered as an assembly GTA Replacement Part Numbers...
  • Page 25: Illustrated Parts Breakdown And Parts List

    ILLUSTRATED PARTS BREAKDOWN REMOTE-READY MODELS AND REMOTE CONTROLLED MODELS VF-24N-PDG VF-24N-BTB VF-24P-PDG VF-24P-BTB For more information, visit www.desatech.com 111826-01F VF-24N-PDG, VF-24P-PDG, VF-24N-BTB, VF-24P-BTB GTA Replacement Part Numbers Model Number VF-24N-PDG VF-24N-BTB VF-24P-PDG VF-24P-BTB REMOTE MODELS ONLY ILLUSTRATED PARTS BREAKDOWN 3 Log sets and mounting plates are ordered as an assembly...
  • Page 26: Parts List

    PARTS LIST VF-24N-PDG, VF-24P-PDG, VF-24N-BTB, VF-24P-BTB, VF-18N-PDG, VF-18P-PDG, VF-18N-BTB, VF-18P-BTB PARTS LIST This list contains replaceable parts used in your heater. When order- ing parts, follow the instructions listed under Replacement Parts on page 23 of this manual. VF-18N-PDG VF-18P-PDG...
  • Page 27: Accessories

    ACCESSORIES Purchase these heater accessories from your local dealer. If they can not supply these accessories, call DESA International at 1-866-672-6040 for referral information. You can also write to the ad dress listed on the back page of this manual.
  • Page 28 THIS PAGE INTENTIONALLY LEFT BLANK For more information, visit www.desatech.com 111826-01F...
  • Page 29: Owner's Registration Form

    Address: City: Home Phone: E-Mail: Please answer the following questions to register your product with DESA: 1. Where will the product be used? Living/Family Room Office/Warehouse If you bought this product yourself, did you plan to purchase this type of product before going into the store? 3.
  • Page 30 Post age Required 2701 S. Harbor Blvd. Santa Ana, CA. 92704 www.desatech.com For more information, visit www.desatech.com 111826-01F...
  • Page 31 NOTES NOTES ________________________________________________________________________________________________ ________________________________________________________________________________________________ ________________________________________________________________________________________________ ________________________________________________________________________________________________ ________________________________________________________________________________________________ ________________________________________________________________________________________________ ________________________________________________________________________________________________ ________________________________________________________________________________________________ ________________________________________________________________________________________________ ________________________________________________________________________________________________ ________________________________________________________________________________________________ ________________________________________________________________________________________________ ________________________________________________________________________________________________ ________________________________________________________________________________________________ ________________________________________________________________________________________________ ________________________________________________________________________________________________ ________________________________________________________________________________________________ ________________________________________________________________________________________________ ________________________________________________________________________________________________ ________________________________________________________________________________________________ ________________________________________________________________________________________________ ________________________________________________________________________________________________ ________________________________________________________________________________________________ ________________________________________________________________________________________________ ________________________________________________________________________________________________ ________________________________________________________________________________________________ ________________________________________________________________________________________________ ________________________________________________________________________________________________ ________________________________________________________________________________________________ ________________________________________________________________________________________________ ________________________________________________________________________________________________ ________________________________________________________________________________________________ ________________________________________________________________________________________________ ________________________________________________________________________________________________ For more information, visit www.desatech.com 111826-01F...
  • Page 32: Limited Warranty

    PURCHASE; AND DESA IN TER NA TION AL’S LIA BIL ITY IS HEREBY LIM IT ED TO THE PURCHASE PRICE OF THE PRODUCT AND DESA IN TER NA TION AL SHALL NOT BE LIABLE FOR ANY OTHER DAM AG ES WHAT SO EVER INCLUDING IN DI RECT, IN CI DEN TAL OR CON SE QUEN TIAL DAM AG ES.

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