Desa VYM27NRPR installation manual

Contents

Main Also Design-Certified As A Vented Decorative Appliance Air for Combustion and Ventilation UNVENTED (VENT-FREE) GAS LOG HEATER SAFETY INFORMATION WARNINGS TABLE OF CONTENTS PRODUCT IDENTIFICATION SAFETY INFORMATION LOCAL CODES UNPACKING PRODUCT FEATURES OPERATION APPLICATION AIR FOR COMBUSTION AND VENTILATION DETERMINING FRESH-AIR FLOW FOR HEATER LOCATION Determining if You Have a Confined or Unconfined Space AIR FOR COMBUSTION AND VENTILATION National Fuel Gas Code, ANSI Z223.1/NFPA 54, Sec- tion 5.3 VENTILATION AIR Ventilation Air From Inside Building Ventilation Air From Outdoors INSTALLATION AND CLEARANCES (Vent-Free Operation Only) CHECK GAS TYPE LOG SIZING REQUIREMENTS MINIMUM FIREPLACE CLEARANCE TO COMBUSTIBLE MATERIALS Minimum Noncombustible Material Clearances Accessories Be- tween 8" and 12" Installing Damper Clamp Accessory for Vented Operation, Minimum Clearances For Side Combustible Material, Side Wall, and Ceiling FLOOR CLEARANCES MANTEL CLEARANCES Determining Minimum Mantel Clearance Determining Minimum Mantel Clearance When using a Hood INSTALLING DAMPER CLAMP ACCESSORY FOR VENTED OPERATION INSTALLING HEATER BASE ASSEMBLY Installation Items Needed CONNECTING TO GAS SUPPLY Installation Items Needed CHECKING GAS CONNECTIONS Connecting to Gas Supply Pressure Testing Gas Supply Piping System Pressure Testing Heater Gas Connections INSTALLING LOGS FOR YOUR SAFETY READ BEFORE LIGHTING LIGHTING INSTRUCTIONS TO TURN OFF GAS TO APPLIANCE Shutting Off Heater NOTE: Shutting Off Burner Only (pilot stays lit) MANUAL LIGHTING PROCEDURE INSPECTING BURNERS BURNER FLAME PATTERN INSPECTING BURNERS BURNER PRIMARY AIR HOLES MAIN BURNER CLEANING AND MAINTENANCE CLEANING BURNER INJECTOR HOLDER AND PILOT AIR INLET HOLE TROUBLESHOOTING Page TROUBLESHOOTING IMPORTANT SPECIFICATIONS SERVICE HINTS When Gas Pressure Is Too Low TECHNICAL SERVICE WIRING DIAGRAM ILLUSTRATED PART S BREAKDOWN VYM27NR, VYM27PR FVFM27NR, FVFM27PR NOTE: Part numbers 22 and 23 are for natural gas models only. ILLUSTRATED PARTS BREAKDOWN VYM27NR, VYM27PR, FVFM27NR, FVFM27PR PARTS LIST VYM27NR VYM27PR FVFM27NR FVFM27PR PARTS LIST ACCESSORIES OWNER'S REGISTRATION FORM Please answer the following questions to register your product with DESA International: Serial Number: Note: Date Purchased: Page NOTES KEEP THIS WARRANTY WARRANTY INFORMATION NOT A UPC LIMITED WARRANTY VENT-FREE GAS LOG HEATERS 2701 Industrial Drive P.O. Box 90004 Bowling Green, KY 42102-9004 www.desatech.com