Desa VGC18NR/PR Owner's Operation And Installation Manual

Unvented (vent-free) gas log heater

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Owner's manual (40 pages)

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Page 1 UNVENTED (VENT-FREE) GAS LOG HEATER OWNER’S OPERATION AND INSTALLATION MANUAL Patent Pending REMOTE-READy MODELS VGC18NR/PR, VGC24NR/PR AND VGC30NR/PR Also Design-Certified As Vented Decorative Appliances WARNING: If the information in this manual is not fol- lowed exactly, a fire or explosion may result causing property damage, personal injury or loss of life.
Page 2: Table Of Contents
Safety Information ... 2 Product Identification ... 5 Local Codes... 5 Unpacking... 5 Product Features ... 5 Air For Combustion and Ventilation ... 6 Installation ... 8 Operating Heater ... 19 Inspecting Burners... 23 Wiring Diagram ... 23 WARNING: Improper in- stallation, adjustment, al- teration, service or main- tenance can cause injury...
Page 3 SAFETy INFORMATION Continued WARNING: This product con- tains and/or generates chemicals known to the state of California to cause cancer or birth defects or other reproductive harm. IMPORTANT: Read this owner’s manual carefully and completely before trying to assemble, op- erate or service this fireplace.
Page 4 SAFETy INFORMATION Continued 1. This appliance is only for use with the type of gas indicated on the rating plate. This ap- pliance is not convertible for use with other gases. 2. Do not place propane/LP supply tank(s) in- side any structure. Locate propane/LP supply tank(s) outdoors (propane/LP units only).
Page 5: Product Identification
PRODUCT IDENTIFICATION Electronic Ignitor Chassis Glowing Embers Flame Adjustment Remote Knob Control (Optional) Figure 1 - Product Identification LOCAL CODES Install and use heater with care. Follow all local codes. In the absence of local codes, use the lat- est edition of The National Fuel Gas Code, ANSI Z223.1/NFPA 54*.
Page 6: Air For Combustion And Ventilation
AIR FOR COMbUSTION AND VENTILATION WARNING: This heater shall not be installed in a confined space or unusually tight construc- tion unless provisions are provid- ed for adequate combustion and ventilation air. Read the following instructions to insure proper fresh air for this and other fuel-burning appliances in your home.
Page 7: Combustion And Ventilation Air
AIR FOR COMbUSTION AND VENTILATION Continued Space: Includes the room in which you will install fireplace plus any adjoining rooms with doorless pas- sageways or ventilation grills between the rooms. Determine the volume of the space (length x width x height). Length x Width x Height =__________cu.
Page 8: Installation
AIR FOR COMbUSTION AND VENTILATION Continued Ventilation Air From Outdoors Provide extra fresh air by using ventilation grills or ducts. You must provide two permanent openings: one within 12" of the ceiling and one within 12" of the floor. Connect these items directly to the outdoors or spaces open to the outdoors.
Page 9: Check Gas Type
INSTALLATION Continued CAUTION: This heater cre- ates warm air currents. These currents move heat to wall sur- faces next to heater. Installing heater next to vinyl or cloth wall coverings or operating heater where impurities (such as, but not limited to, tobacco smoke, aromatic candles, cleaning flu- ids, oil or kerosene lamps, etc.) in the air exist, may discolor walls...
Page 10: Mantel Clearances
INSTALLATION Continued NOTICE: Manual control heaters may be used as a vented product. If so, you must always run heater with chimney flue damper open. If running heater with damper open, noncombustible material above fireplace opening is not needed. Go to Installing Damper Clamp Accessory for Vented Operation, page 12.
Page 11: Floor Clearances
INSTALLATION Continued NOTICE: Surface temperatures of adjacent walls and mantels be- come hot during operation. Walls and mantels above the firebox may become hot to the touch. If installed properly, these tem- peratures meet the requirement of the national product standard. Follow all minimum clearances shown in this manual.
Page 12: Installing Damper Clamp Accessory For Vented Operation
INSTALLATION Continued INSTALLING DAMpER CLAMp ACCESSORY FOR VENTED OpERATION Note: When used as a vented heater, appliance must be installed only in a solid-fuel burning fireplace with a working flue and constructed of noncombustible material. If your heater is a manually-controlled model, you may use this heater as a vented product.
Page 13: Connecting To Gas Supply
INSTALLATION Continued Installation Items Needed • hardware package (provided with heater) • approved flexible gas hose and fittings (not provided) (if allowed by local codes) • sealant (resistant to propane/LP gas, not pro- vided) • electric drill with 3/16” masonry drill bit Note: Install optional HRC Series receiver and hand-held remote control kit (see Accessories, page 33) before installing gas log heater.
Page 14 INSTALLATION Continued Installation Items Needed Before installing heater, make sure you have the items listed below. • external regulator (supplied by installer) • piping (check local codes) • sealant (resistant to propane/LP gas) • equipment shutoff valve * • test gauge connection * •...
Page 15: Checking Gas Connections
INSTALLATION Continued We recommend that you install a sediment trap in supply line as shown in Figure 14. Locate sediment trap where it is within reach for cleaning. Install in piping system between fuel supply and heater. Locate sediment trap where trapped matter is not likely to freeze.
Page 16 INSTALLATION Continued Equipment Shutoff Valve Gas Meter Figure 17 - Checking Gas Joints (Natural Gas Only) pRESSURE TESTING HEATER GAS CONNECTIONS 1. Open equipment shutoff valve (see Figure 15, page 15). 2. Open main gas valve located on or near gas meter for natural gas or open propane/LP supply tank valve.
Page 17 INSTALLATION Continued 9. Connect wires from hardware pack (with remote receiver bracket) to control valve at the TPTH and TH locations as shown in Figure 20. Connect other ends of these wires to remote receiver wires. Note: Make sure excess wire does not interfere with burner or pilot.
Page 18 INSTALLATION Continued 2. Place middle log in front of U-burner and against the edges of plate as shown in Figure 24. 3. Place front left log (#3) onto pan burner be- tween log #2 and grate. Back of log #3 should fit against front of log #2.
Page 19: Operating Heater
INSTALLATION Continued Figure 27 - Placement of Embers Figure 28 - Installing Log #7 OPERATING HEATER 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.
Page 20: Operating Heater
OPERATING HEATER Continued Note: Home owners generally prefer to op- erate their heater with the chimney damper closed. This will put all the heat into the room. However, there may be times you will desire the full flames of the HI heat setting but will find the heat output excessive.
Page 21: To Turn Off Gas To Appliance
OPERATING HEATER Continued Pilot Burner Figure 30 - Pilot (Propane/LP) Pilot Burner Figure 31 - Pilot (Natural) TO TURN OFF GAS TO AppLIANCE Shutting Off Heater 1. Turn control knob clockwise OFF position. 2a. Set switch in the OFF position. 2b.
Page 22 OPERATING HEATER Continued TO LOCK press both buttons on hand-held remote control until light stops flashing. Hand- held remote control is now locked. If the fire is on it will be turned off automatically. In the locked state, the light will not light up when any button is pressed.
Page 23: Inspecting Burners
INSPECTING bURNERS Check pilot flame pattern and burner flame pat- terns often. pILOT FLAME pATTERN Figure 35 shows a correct pilot flame pattern. Figure 36 shows an incorrect pilot flame pattern. The incorrect pilot flame is not touching the thermocouple. This will cause the thermocouple to cool.
Page 24: Cleaning And Maintenance
CLEANING AND MAINTENANCE WARNING: Turn off heater and let cool before cleaning. CAUTION: You must keep control areas, burners and circulating air passageways of heater clean. Inspect these areas of heater before each use. Have heater inspected yearly by a qualified service person. Heater may need more frequent cleaning due to excessive lint from carpeting, pet hair, bedding...
Page 25: 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. This can damage ODS/pilot unit. Note: All troubleshooting items are listed in order of operation. OBSERVED PROBLEM When ignitor button is pressed, there is no spark at ODS/pilot...
Page 26 OBSERVED PROBLEM ODS/pilot lights but flame goes out when control knob is released One or both burners do not light after ODS/pilot is lit Delayed ignition of one or both burners Burner backfiring during com- bustion Yellow flame in front burner during burner combustion TROUbLESHOOTING Continued...
Page 27 OBSERVED PROBLEM Slight smoke or odor during initial operation Heater produces a whistling noise when burners are lit White powder residue forming within burner box or on adjacent walls or furniture Moisture/condensation noticed on windows Remote does not function (Re- mote-Ready Models Only) Heater produces a clicking/tick- ing noise just after burners are...
Page 28 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 29: Specifications
Heating Products’ 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 DESA Heating Products’ techni- cal services web site at www.desatech.com. REPLACEMENT PARTS Note: Use only original replacement parts. This will protect your warranty coverage for parts replaced under warranty.
Page 30: Illustrated Parts Breakdown And Parts List
ILLUSTRATED PARTS bREAkDOWN REMOTE-READY VARIABLE CONTROL MODELS VGC18NR, VGC18PR, VGC24NR, VGC24PR, VGC30NR, VGC30PR www.desatech.com 119162-01A...
Page 31: Parts List
REMOTE-READY VARIABLE CONTROL MODELS This list contains replaceable parts used in your heater. When ordering parts, follow the instructions listed under Replacement Parts on page 42 of this manual. NO. PART NO. 11928-01 118489-01 11929-01CK 11858-01CK 118842-01CK 118842-02CK 118619-01CK 118585-01CK 10381-01 10381-02 10384-01...
Page 32: Illustrated Parts Breakdown And Parts List
LOG SETS FOR MODELS VGC18PR/NR, VGC24PR/NR AND VGC30PR/NR This list contains replaceable parts used in your heater. When ordering parts, follow the instructions listed under Replacement Parts on page 42 of this manual. PART NUMBER VGC18NR/PR VGC24NR/PR VGC30NR/PR 119161-02 119161-01 11941-01...
Page 33: Accessories
ACCESSORIES Purchase these heater accessories from your local dealer. If they can not supply these accessories, call DESA Heating Products at 1-866-672-6040 for referral information. You can also write to the address listed on the back page of this manual.
Page 34 ACCESSORIES Continued LAVA ROCK - GA6060 (Not Shown) For all models. Order when additional rock is desired. (1.8 lb. bag) CLEANING KIT - GCK (Not Shown) For all models. Your vent-free gas appliance re- quires regular cleaning and maintenance to prevent performance problems.
Page 35 _____________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ _____________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ _____________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ ______________________________________________________ 119162-01A NOTES www.desatech.com...
Page 36: Limited Warranty
VENT-FREE GAS LOG HEATERS DESA Heating Products 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.

This manual is also suitable for:

Vgc18nr Vgc18pr Vgc24nr Vgc24pr Vgc30nr Vgc30pr