Instruction/ maintenance manual of the product VMH26TN 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 Ac.
2 102885 CONTENTS SECTION PAGE Safety Information continues on next page Safety Information ................................................................................... 2 Product Identification ..................................................
3 102885 SAFETY INFORMA TION Continued WARNING ICON G001 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 102885 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 102885 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 102885 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 102885 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 102885 AIR FOR COMBUSTION AND VENTILA TION Continued Figure 4 - Ventilation Air from Inside Building Shown with Optional Mantel WARNING ICON G001 W ARNING If the area in which the heater may be oper.
9 102885 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 102885 INST ALLA TION NOTICE A qualified service person must install fireplace. Follow all local codes. You can recess firebox into the wall. You can also position fireplace in the optional cabinet or corner mantels. IMPORTANT: Only use optional cabinet or corner mantels specified in this manual.
11 102885 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 102885 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 two options for connecting blower to electrical source.
13 102885 INST ALLING Continued Continued 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. Option one: Route blower electrical cord through side or rear access door of fireplace.
14 102885 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 102885 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 102885 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 102885 CONNECTING T O GAS SUPPL Y Continued Continued Figure 17 - Removing Twig Support From Fireplace CONNECTING FIREPLACE TO GAS SUPPLY Installation Items Needed • Phillips screwdriver • sealant (resistant to propane gas, not provided) 1. Remove fireplace screen.
18 102885 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 102885 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 102885 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 102885 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 102885 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 102885 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 yellow tipping of the flame. It also shows the flame higher than one inch above the log.
24 102885 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 102885 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 102885 OBSERVED PROBLEM Burner does not light after ODS/pilot is lit Delayed ignition of burner Burner backfiring during combustion Yellow flame during burner combustion Slight smoke or odor during initial operation Fireplace produces a whistling noise when burner is lit REMEDY 1.
27 102885 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 102885 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 Btu (Variable) 14,000/26,000 Type Gas Natural Only Ignition Piezo Pressure Regulator Setting 3" W.
29 102885 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 102885 12-1 12-2 23 29 32 36 37 13 7 33 11 8 10 17 17 8 7 30 3 1 2 9 19 6 22 31 21 40 27 38 39 16 15 18 24 28 5 34 26 25 20 35-1 35-2 12 24 12-1 25 14 4 VMH26TN.
31 102885 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 102885-01 REV. D 06/97 LIMITED WARRANTY VENT-FREE NATURAL GAS COMPACT CLASSIC HEARTH FIREPLACE DESA International warrants this pr.
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