Instruction/ maintenance manual of the product VMH10TN Vanguard Heating
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Save this manual for future reference. OWNER’S OPERA TION AND INST ALLA TION MANUAL VENT -FREE NA TURAL GAS COMP ACT CLASSIC HEARTH FIREPLACE ® Shown with Optional Cabinet Mantel/Hearth Base Accessory ® 10,000 Btu/Hr with Thermostat VMH10TN This appliance may be installed in a bedroom where not prohibited by state or local codes.
2 103670 CONTENTS SECTION PAGE Safety Information continues on next page Safety Information ................................................................................... 2 Product Identification ..................................................
3 103670 SAFETY INFORMA TION Continued WARNING ICON G 001 W ARNINGS Continued WARNING: Any change to this fireplace or its controls can be dangerous. 1. 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.
4 103670 PRODUCT IDENTIFICA TION LOCAL CODES Install and use fireplace with care. Follow all local codes. In the absence of local codes, use the latest edition of The National Fuel Gas Code ANSI Z223, also known as NFPA 54*. *Available from: American National Standards Institute, Inc.
5 103670 ASSEMBL Y ASSEMBLING FIREPLACE Tools Required: Phillips screwdriver, 5/16" hex wrench, and slotted screwdriver Installing Log 1. Remove back log, branch, and hood from log box. Discard protective packaging. 2. Remove two shipping screws above screen (see Figure 2).
6 103670 AIR FOR COMBUSTION AND VENTILA TION WARNING ICON G 001 W ARNING This heater shall not be installed in a confined space unless provisions are provided 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.
7 103670 AIR FOR COMBUSTION AND VENTILA TION Continued DETERMINING FRESH-AIR FLOW FOR FIREPLACE LOCATION Determining if You Have a Confined or Unconfined Space Use this worksheet to determine if you have a confined or unconfined space.
8 103670 AIR FOR COMBUSTION AND VENTILA TION Continued Figure 4 - Ventilation Air from Inside Building Shown with Optional Mantel WARNING ICON G 001 W ARNING If the area in which the heater may be ope.
9 103670 AIR FOR COMBUSTION AND VENTILA TION Continued Figure 5 - Ventilation Air from Outdoors Shown with Optional Mantel 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.
10 103670 NOTICE A qualified service person must install fireplace. Follow all local codes. CHECK GAS TYPE Use only natural gas. If your gas supply is not natural gas, do not install fireplace. Call the dealer where you bought your fireplace for the proper type fireplace.
11 103670 Figure 7 - Mounting Clearances As Viewed From Front of Fireplace Shown with Optional Mantel WARNING ICON G 001 CAUTION If you install the fireplace in a home garage • fireplace pilot and burner must be at least 18 inches above floor. • locate fireplace where moving vehicle will not hit it.
12 103670 INST ALLING Continued 36 5/8" 25 7/8" 51 3/4" 26 7/8" Figure 9 - Rough Opening for Installing in Corner 2. An optional blower accessory is available (see Accessories , page 29). There are three options for connecting blower to electrical source.
13 103670 INST ALLING Continued Continued 5. Carefully set fireplace in front of rough opening with back of fireplace inside wall opening. 6. Attach flexible gas line to fireplace gas regulator. See Connecting Fireplace to Gas Supply, page 17. 7. If the optional blower has been installed connect blower to electrical source.
14 103670 INST ALLING Continued Figure 12 - Attaching Brass Trim to Fireplace Shoulder Screws Assembled Brass Trim OPTIONAL MANTEL INSTALLATION Note: Refer to instructions provided with the mantel for assembly instructions. Refer to instructions below for system installation.
15 103670 Attaching Wood Base to Solid Floor For attaching base to solid floors (concrete or masonry) Note: Floor anchors and mounting screws are in hardware package. The hardware package is provided with fireplace. 1. Drill holes at marked locations using 5/16" drill bit.
16 103670 CONNECTING T O GAS SUPPL Y NOTICE A qualified service person must connect fireplace to gas supply. Follow all local codes. IMPORTANT: Check gas line pressure before connecting fireplace to gas line. Gas line pressure must be no greater than 14 inches of water.
17 103670 CONNECTING T O GAS SUPPL Y Continued Continued Figure 17 - Removing Log Base Assembly From Fireplace CONNECTING FIREPLACE TO GAS SUPPLY Installation Items Needed • Phillips screwdriver • sealant (resistant to propane gas, not provided) 1.
18 103670 ON POSITION OFF POSITION PRESSURE TESTING GAS SUPPLY PIPING SYSTEM Test Pressures In Excess Of 1/2 PSIG 1. Disconnect fireplace and its individual manual shutoff valve from gas supply piping system. Pressures in excess of 1/2 psig will damage fireplace regulator.
19 103670 OPERA TING FIREPLACE FOR YOUR SAFETY READ BEFORE LIGHTING Continued WARNING ICON G 001 W ARNING If you do not follow these instructions exactly, a fire or explosion may result causing property damage, personal injury or loss of life. LIGHTING INSTRUCTIONS 1.
20 103670 4. Wait five (5) minutes to clear out any gas. Then smell for gas, including near the floor. If you smell gas, STOP! Follow “B” in the safety information at the top of page 19. If you don’t smell gas, go to the next step. 5. Turn control knob counterclockwise C-clockwise to the PILOT position.
21 103670 T O TURN OFF GAS TO APPLIANCE Shutting Off Fireplace 1. Turn control knob clockwise Clockwise to the OFF position. 2. Turn off all electric power to the appliance if service is to be performed. Shutting Off Burner Only (pilot stays lit) 1. Turn control knob clockwise Clockwise to the PILOT position.
22 103670 INSPECTING BURNER Thermocouple Pilot Burner Figure 23 - Correct Pilot Flame Pattern Thermocouple Pilot Burner Figure 24 - Incorrect Pilot Flame Pattern Check pilot flame pattern and burner flame pattern often. PILOT FLAME PATTERN Figure 23 shows a correct pilot flame pattern.
23 103670 BURNER FLAME PATTERN Figure 25 shows a correct burner flame pattern. Figure 26 shows an incorrect burner flame pattern. The incorrect burner flame pattern shows the flame consistantly higher than one inch above the log.
24 103670 CLEANING AND MAINTENANCE ODS/PILOT AND BURNER • Use a vacuum cleaner, pressurized air, or small, soft bristled brush to clean. CABINET Air Passageways • Use a vacuum cleaner or pressurized air to clean. Exterior • Use a soft cloth dampened with a mild soap and water mixture.
25 103670 Continued TROUBLE- SHOOTING Continued REMEDY 1. Turn on gas supply or open manual shutoff valve 2. Turn control knob to PILOT position 3. Press in control knob while in PILOT position 4. Continue holding down control knob. Repeat igniting opera- tion until air is re- moved 5.
26 103670 OBSERVED PROBLEM Burner does not light after ODS/pilot is lit Delayed ignition of burner Burner backfiring during combustion Slight smoke or odor during initial operation Fireplace produces a whistling noise when burner is lit REMEDY 1. Clean burner (see Cleaning and Mainte- nance , page 24) or replace burner orifice 2.
27 103670 TROUBLE- SHOOTING Continued WARNING ICON G 001 W ARNING 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.
28 103670 TECHNICAL SER VICE You may have further questions about installation, operation, or troubleshooting. If so, contact DESA International’s Technical Service Department at 1-800-323-5190. SPECIFICA TIONS REPLACEMENT P ARTS Input Rate 10,000 Btu/Hr Type Gas Natural Only Ignition Piezo Pressure Regulator Setting 3" W.
29 103670 ACCESSORIES Purchase these fireplace accessories from your local dealer. If they cannot supply these accessories call DESA International’s Sales Department at 1-800-458-2472 for referral information. You can also write to the address listed on the back page of this manual.
30 103670 12-1 12-2 23 29 32 36 37 13 7 33 11 8 10 8 7 30 3 1 2 9 17 19 6 22 31 21 40 27 38 38 16 15 18 24 28 5 34 26 25 20 42 35 12 24 12-1 25 14 4 39 41 VMH10TN.
31 103670 P ARTS LIST This list contains replaceable parts used in your fireplace. When ordering parts, follow the instructions listed under Replacement Parts on page 28 of this manual.
2701 Industrial Drive P.O. Box 90004 Bowling Green, KY 42102-9004 103670-01 REV. B 08/97 LIMITED WARRANTY VENT-FREE NATURAL GAS COMPACT CLASSIC HEARTH FIREPLACE DESA International warrants this pr.
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