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UNVENTED (VENT-FREE)
PROPANE/LP GAS LOG HEATER
VARIABLE MANUALLY-CONTROLLED MODELS ALSO
DESIGN-CERTIFIED AS VENTED DECORATIVE APPLIANCES
OWNER’S OPERATION AND INSTALLATION MANUAL
®
FLAME-MAX
Models VYS18PWA,
VYS24PWA, and
VYS30PWA (Millivolt)
Remote Ready Patent Pending
WARNING: Improper installation, adjust-
WARNING: If the information in this manual
ment, alteration, service, or maintenance
is not followed exactly, a fire or explosion
can cause injury or property damage.
ma
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VANGUARD UNVENTED PROPANE/LP GAS LOG HEATER • immediately call your gas supplier SAFETY Due to high temperatures, the from a neighbor’s phone. Follow the appliance should be located out INFORMATION gas supplier’s instructions of traffic and away from furniture • if you cannot reach your gas supplier, and draperies. call the fire department WARNING ICON G 001 WARNINGS 5. This heater shall not be installed in a Do not place clothing or other bedroom or bathroom unless installed IMPORTANT: Read thi
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L I P F F O L L AUTO ON OFF WARMER TEMP COOLER AUTO ON OFF O O OWNER’S MANUAL SAFETY LOCAL CODES PRODUCT INFORMATION Install and use heater with care. Follow all FEATURES local codes. In the absence of local codes, use Continued OPERATION the latest edition of The National Fuel Gas 13. Do not use this heater to cook food or Code ANSI Z223.1/NFPA 54*. This heater is clean burning. It requires no burn paper or other objects. *Available from: outside venting. There is no heat loss out a 14. Do not
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VANGUARD UNVENTED PROPANE/LP GAS LOG HEATER Confined and Unconfined Space PROVIDING ADEQUATE AIR FOR VENTILATION The National Fuel Gas Code, ANSI Z223.1/ COMBUSTION AND NFPA 54 defines a confined space as a The following are excerpts from National VENTILATION space whose volume is less than 50 cubic Fuel Gas Code ANSI Z223.1/NFPA 54, Sec- 3 feet per 1,000 Btu per hour (4.8 m per kw) tion 5.3, Air for Combustion and Ventilation. WARNING: This heater shall of the aggregate input rating of all app
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OWNER’S MANUAL AIR FOR COMBUSTION AND VENTILATION Continued DETERMINING FRESH-AIR FLOW FOR HEATER LOCATION Determining if You Have a Confined or Unconfined Space Use this work sheet to determine if you have a confined or unconfined space. Space: Includes the room in which you will install heater plus any adjoining rooms with doorless passageways or ventilation grills between the rooms. 1. Determine the volume of the space (length x width x height). Length x Width x Height = _____________ cu. ft
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VANGUARD UNVENTED PROPANE/LP GAS LOG HEATER AIR FOR 12" COMBUSTION AND VENTILATION Ventilation Continued Ventilation Grills Grills Into Adjoining Room, Into Adjoining VENTILATION AIR Or Option 2 Room, Remove Ventilation Air From Inside Option 1 Door into Building Adjoining This fresh air would come from an adjoining Room, unconfined space. When ventilating to an Option adjoining unconfined space, you must pro- 3 vide two permanent openings: one within 12" of the ceiling and one within 12" of
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OWNER’S MANUAL INSTALLATION MINIMUM FIREPLACE WARNING: Never install the CLEARANCE TO heater NOTICE: This heater is intended • in a bedroom or bathroom un- COMBUSTIBLE MATERIALS for use as supplemental heat. Use less installed as a vented ap- this heater along with your pri- Log Size Side Wall Ceiling pliance, see page 10 mary heating system. Do not in- • in a recreational vehicle 18", 24", 16" 42" stall this heater as your primary • where curtains, furniture, and 30" heat source. If you have a
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VANGUARD UNVENTED PROPANE/LP GAS LOG HEATER If Using Mantel IMPORTANT: If you cannot meet these INSTALLATION minimum clearances, you must operate You must have noncombustible material(s) Continued heater with chimney flue damper open. Go above the fireplace opening. Noncombus- to Installing Damper Clamp Accessory for tible materials (such as slate, marble, tile, Vented Operation, page 10. NOTICE: Manual control heaters etc.) must be at least 1/2 inch thick. With sheet metal, you must have noncom
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OWNER’S MANUAL Mantel Shelf INSTALLATION 10" Underside of 8" Continued Mantel Shelf 6" MANTEL CLEARANCES 1 2 /2" In addition to meeting noncombustible mate- rial clearances, you must also meet required All minimum clearances between fireplace opening and distances are in inches mantel shelf. If you do not meet the clear- Minimum Non- ances listed below, you will need a hood. (A) Combustible Log Set Material Log Set Determining Minimum Mantel 12" 18" 20" 22" 24" 24"/30"/36" Models 24” and 30”
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VANGUARD UNVENTED PROPANE/LP GAS LOG HEATER Damper Clamp INSTALLATION Continued INSTALLING DAMPER CLAMP ACCESSORY FOR Damper Damper VENTED OPERATION Clamp Damper Note: When used as a vented heater, appli- Damper ance 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. Masonry Fireplace Manufactured Fireplace There are three reasons for o
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L I P F F O L L AUTO AUTO ON ON OFF OFF O O OWNER’S MANUAL INSTALLING GWMS2 CONNECTING TO GAS INSTALLATION (OPTIONAL) WALL SUPPLY Continued MOUNTED SWITCH 9. Drill holes at marked locations using WARNING: This appliance re- 3/16" drill bit. Items Included for Installation quires a 1/2" NPT (National Pipe 10. Attach base assembly to fireplace floor • Switch Thread) inlet connection to the using two masonry screws (in hardware pressure regulator. • Switch Cover (With Screws) package). • 25 Ft. Wi
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VANGUARD UNVENTED PROPANE/LP GAS LOG HEATER Installation must include an equipment INSTALLATION CAUTION: Avoid damage to shutoff valve, union, and plugged 1/8" NPT Continued control. Hold fitting with wrench tap. Locate NPT tap within reach for test when connecting it to gas piping gauge hook up. NPT tap must be upstream and/or fittings. from heater (see Figure 15). WARNING: Never connect heater to private (non-utility) gas IMPORTANT: Install an equipment shutoff CHECKING GAS wells. This gas i
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L I P F F O L L AUTO ON OFF O O OWNER’S MANUAL Equipment Shutoff INSTALLATION Control Valve Location Valve Propane/LP Continued Supply Tank Test Pressures Equal To or Less Than 1/2 PSIG (3.5 kPa) 1. Close equipment shutoff valve (see Figure 16). 2. Pressurize supply piping system by ei- ther using compressed air or opening propane/LP supply tank valve. 3. Check all joints from propane/LP sup- ply tank to equipment shutoff valve (see Figure 17). Apply a noncorrosive leak detection fluid to gas jo
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O L I P F F O H I L VANGUARD UNVENTED PROPANE/LP GAS LOG HEATER LIGHTING OPERATING WARNING: Burner will come INSTRUCTIONS on automatically within one HEATER minute when the selector switch WARNING: FOR YOUR SAFETY is in the ON position after the • If fireplace has glass doors, pilot is lit. READ BEFORE never operate this heater with LIGHTING glass doors closed. If you oper- 4. Press in and turn control knob clock- ate heater with doors closed, wise to the OFF position. WARNING: If you do no
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OWNER’S MANUAL For wall thermostat operation, follow in- TO TURN OFF GAS OPERATING struction supplied with thermostat acces- TO APPLIANCE HEATER sory GWMT1. For wall switch operation Shutting Off Heater follow instructions supplied with GWMS2. Continued 1. Turn control knob clockwise 8. Keep control knob pressed in for 30 NOTICE: You must light the pilot to the OFF position. seconds after lighting pilot. After 30 before using the hand-held re- 2a. Set selector switch in the OFF position. secon
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N O T O H L I I L VANGUARD UNVENTED PROPANE/LP GAS LOG HEATER Pilot Burner OPERATING INSPECTING Thermocouple HEATER BURNERS Continued Check pilot flame pattern and burner flame patterns often. IMPORTANT: This remote control has been specially engineered to PILOT FLAME PATTERN take an air temperature sample ev- Figure 24 - Correct Pilot Flame Pattern Figure 24 shows a correct pilot flame pat- ery 5.5 minutes in the auto mode. Pilot Burner It will not respond immediately to tern. Figure 25 shows a
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OWNER’S MANUAL TROUBLESHOOTING CAUTION: Never use a wire, WARNING: Turn off heater Note: For additional help, visit DESA and let cool before servicing. needle, or similar object to clean International’s technical service web site Only a qualified service person ODS/pilot. This can damage ODS/ at www.desatech.com. should service and repair pilot unit. heater. Note: All troubleshooting items are listed in order of operation. OBSERVED PROBLEM POSSIBLE CAUSE REMEDY When ignitor button is pressed,
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VANGUARD UNVENTED PROPANE/LP GAS LOG HEATER TROUBLESHOOTING Continued OBSERVED PROBLEM POSSIBLE CAUSE REMEDY Burner does not light after ODS/pilot is lit 1. Burner orifice clogged 1. Clean burner (see Cleaning and Mainte- nance, page 21) or replace burner orifice 2. Inlet gas pressure is too low 2. Contact local propane/LP gas company 3. Burner orifice diameter is too small 3. Replace burner orifice 4. Thermopile leads disconnected or im- 4. Reconnect leads (see Wiring Diagram, properly connecte
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OWNER’S MANUAL TROUBLESHOOTING Continued 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. Follow the gas supplier’s instructions. • If you cannot reach your gas supplier, call the fire department. IMPORTANT: Operating heater where impurities in air exist may create odors. Cleaning supplies, paint, paint remover, cigarette
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AUTO ON OFF VANGUARD UNVENTED PROPANE/LP GAS LOG HEATER WIRING DIAGRAM REPLACEMENT Note: For proper operation of optional ac- PARTS cessories, the wires from the switch to the Note: Use only original replacement parts. control must be connected exactly as shown. This will protect your warranty coverage for parts replaced under warranty. PARTS UNDER WARRANTY Contact authorized dealers of this product. If they can’t supply original replacement part(s), call DESA International’s Techni- cal Service
