Desa VN10, VN6C User Manual

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INFRARED VENT-FREE NATURAL GAS HEATER
®
OWNER’S OPERATION AND INSTALLATION MANUAL
®
MODELS: VN6C AND VN10
WARNING: If the information in this manual is not followed exactly, a fire or explosion may result causing property damage, personal injury, or loss of life.
—Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this
or any other appliance.
—WHAT TO DO IF YOU SMELL GAS
• 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.
—Installation and service must be performed by a qualified installer, service agency, or the
gas supplier.
WARNING: This is an unvented gas-fired heater. It uses air (oxygen) from the room in which it is installed. Provisions for adequate combustion must be provided. Refer to page 3 of this manual.
This appliance may be installed in an aftermarket* manufactured (mobile) home, where not prohibited by state or local codes.
* Aftermarket: Completion of sale, not for purpose of resale, from the manufacturer 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.
Save this manual for future reference.
VANGUARD VN6C AND VN10 NATURAL GAS HEATER
SAFETY INFORMATION
WARNINGS
WARNING ICON G 001
IMPORTANT: Read this Owner’s Manual carefully and completely before trying to assemble, oper­ate, or service this heater. Im­proper use of this heater can cause serious injury or death from burns, fire, explosion, and car­bon monoxide poisoning.
DANGER: Carbon monoxide
poisoning may lead to death!
Carbon Monoxide Poisoning: Early
signs of carbon monoxide poisoning re­semble the flu, with headaches, dizziness, or nausea. If you have these signs, the heater may not be working properly. Get fresh air at once! Have heater serviced. Some people are more affected by carbon monoxide than others. These include pregnant women, per­sons with heart or lung disease or anemia, those under the influence of alcohol, and those at high altitudes.
Natural Gas: Natural gas is odorless. An odor-making agent is added to natural gas. The odor helps you detect a natural gas leak. However, the odor added to natural gas can fade. Natural gas may be present even though no odor exists.
Make certain you read and understand all Warnings. Keep this manual for reference. It is your guide to safe and proper operation of this heater.
WARNING: Any change to this heater 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.
2. 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
3. Heater model VN10 shall not be in­stalled in a bathroom.
4. Never install the heater
• in a recreational vehicle
• where curtains, furniture, clothing, or
other flammable objects are less than 36 inches from the front, top, or sides of the heater
• as a fireplace insert
• in high traffic areas
• in windy or drafty areas
5. Always run heater with control knob at LOW or HIGH locked positions (VN10) or ON position (VN6C). Never set control knob between locked posi­tions. Poor combustion may result.
6. This heater needs fresh, outside air ven­tilation to run properly . This heater has an oxygen depletion sensor (ODS) pi­lot light safety system. The ODS shuts down the heater if not enough fresh air is available. See Air for Combustion and Ventilation, pages 3 through 5.
7. Keep all air openings in front and bot­tom of heater clear and free of debris. This will insure enough air for proper combustion.
8. If heater shuts off, do not relight until you provide fresh, outside air. If heater keeps shutting off, have it serviced.
9. Do not run heater
• where flammable liquids or vapors
are used or stored
• under dusty conditions
10. Never place any objects on the heater.
11. Surface of heater becomes very hot when running heater. Keep children and adults away from hot surface to avoid burns or clothing ignition. Heater will remain hot for a time after shut-down. Allow surface to cool before touching.
12. Carefully supervise young children when they are in same room with heater.
13. Make sure grill guard is in place be­fore running heater.
14. Do not use heater if any part has been under water. Immediately call a quali­fied service technician to inspect the room heater and to replace any part of the control system and any gas control which has been under water.
15. Turn off heater and let cool before ser ­vicing. Only a qualified service person should service and repair heater.
16. Operating heater above elevations of 4,500 feet could cause pilot outage.
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OWNER’S MANUAL
PRODUCT IDENTIFICATION
Piezo Ignitor Button
Control Knob
Front Panel
Figure 1 - Vent-Free Natural Gas Heater (Model VN10 Shown)
LOCAL CODES
Install and use heater with care. Follow all local codes. In the absence of local codes, use the latest edition of National Fuel Gas Code ANSI Z223.1, also known as NFPA 54*.
*Available from: American National Standards Institute, Inc.
1430 Broadway
New York, NY 10018
National Fire Protection Association, Inc.
Batterymarch Park
Quincy, MA 02269
PRODUCT FEATURES
SAFETY PILOT
This heater has a pilot with an Oxygen Depletion Sensor Shutoff System (ODS). The ODS/pilot is a required feature for vent­free room heaters. The ODS/pilot shuts off the heater if there is not enough fresh air.
PIEZO IGNITION SYSTEM
This heater has a piezo ignitor. This system requires no matches, batteries, or other sources to light heater.
UNPACKING
1. Remove heater from carton.
2. Remove all protective packaging ap­plied to heater for shipment.
3. Check heater for any shipping damage. If heater is damaged, promptly inform dealer where you bought heater.
Grill Guard
Burners
Heater Cabinet
AIR FOR COMBUSTION AND VENTILATION
WARNING: 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.
Today’s homes are built more energy effi­cient than ever. New materials, increased insulation, and new construction methods help reduce heat loss in homes. Home own­ers weather strip and caulk around windows and doors to keep the cold air out and the warm air in. During heating months, home owners want their homes as airtight as pos­sible.
While it is good to make your home energy efficient, your home needs to breathe. Fresh air must enter your home. All fuel-burning appliances need fresh air for proper com­bustion and ventilation.
Exhaust fans, fireplaces, clothes dryers, and fuel burning appliances draw air from the house to operate. You must provide ad­equate fresh air for these appliances. This will insure proper venting of vented fuel­burning appliances.
PROVIDING ADEQUATE VENTILATION
The following is exerpts from National Fuel Gas Code. NFPA 54/ANSI Z223.1, Section
5.3, Air for Combustion and Ventilation.
All spaces in homes fall into one of the three following ventilation classifications:
1. Unusually Tight Contruction; 2. Uncon­fined Space; 3. Confined Space.
The information on pages 4 and 5 will help you classify your space and provide ad­equate ventilation.
Continued
101851
3
VANGUARD VN6C AND VN10 NATURAL GAS HEATER
AIR FOR COMBUSTION AND VENTILATION
Continued
UNUSUALLY TIGHT CONSTRUCTION
The air that leaks around doors and win­dows may provide enough fresh air for combustion and ventilation. However, in buildings of unusually tight construction, you must provide additional fresh air.
Unusually tight construction is defined as construction where: a.walls and ceilings exposed to
the outside atmosphere have a continuous water vapor re­tarder with a rating of one perm
-11
(6x10 less with openings gasketed or sealed
b.weather stripping has been
added on openable windows and doors
c.caulking or sealants are ap-
plied to areas such as joints around window and door frames, between sole plates and floors, between wall-ceil­ing joints, between wall panels, at penetrations for plumbing, electrical, and gas lines, and at other openings.
If your home meets all of the three criteria above, you must provide ad­ditional fresh air. See
From Outdoors
If your home does not meet all of the three criteria above, proceed to
mining Fresh-Air Flow For Heater Lo­cation
.
Confined and Unconfined Space
The National Fuel Gas Code (ANSIZ2123.1, 1992 Section 5.3) defines a confined space as a space whose volume is less than 50 cubic feet per 1,000 Btu per hour (4.8 m3 per kw) of the aggregate input rating of all appliances installed in that space and an unconfined space as a space whose volume is not less than 50 cubic feet per 1,000 Btu per hour (4.8 m3 per kw) of the aggregate input rating of all appliances installed in that
kg per pa-sec-m2) or
and
and
Ventilation Air
, page 5
.
Deter-
space. Rooms communicating directly with the space in which the appliances are in­stalled*, through openings not furnished with doors, are considered a part of the unconfined space.
* Adjoining rooms are communicating only if there are doorless passageways or ventila­tion grills between them.
DETERMINING FRESH-AIR FLOW FOR HEATER LOCATION
Determining if You Have a Confined or Unconfined Space
Use this worksheet 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. (volume of space)
Example:
Space size 20 ft. (length) x 16 ft. (width) x 8 ft. (ceiling height) = 2560 cu. ft. (volume of space)
If additional ventilation to adjoining room is supplied with grills or open­ings, add the volume of these rooms to the total volume of the space.
2. Divide the space volume by 50 cubic feet to determine the maximum Btu/Hr the space can support.
________ (volume of space) ÷ 50 cu.
ft. = (Maximum Btu/Hr the space can support)
Example:
space) ÷ 50 cu. ft. = 51.2 or 51,200 (maximum Btu/Hr the space can sup­port)
3. Add the Btu/Hr of all fuel burning ap­pliances in the space.
Vent-free heater __________ Btu/Hr Gas water heater* ________ Btu/Hr Gas furnace _____________ Btu/Hr
Vented gas heater _________ Btu/Hr Gas fireplace logs ________ Btu/Hr Other gas appliances*+ ____ Btu/Hr Total = ____ Btu/Hr
2560 cu. ft. (volume of
Example:
Gas water heater 40,000 Btu/Hr Vent-free heater + 10,000 Btu/Hr Total = 50,000 Btu/Hr * Do not include direct-vent gas appli-
ances. Direct-vent draws combustion air from the outdoors and vents to the outdoors.
4. Compare the maximum Btu/Hr the space can support with the actual amount of Btu/Hr used.
__________ Btu/Hr (maximum the
space can support)
__________ Btu/Hr (actual amount of
Btu/Hr used)
Example:
The space in the above example is a con­fined space because the actual Btu/Hr used is more than the maximum Btu/Hr the space can support. You must provide additional fresh air. Your options are as follows:
A. Rework worksheet, adding the space of
B. Vent room directly to the outdoors. See
C. Install a lower Btu/Hr heater, if lower
If the actual Btu/Hr used is less than the maximum Btu/Hr the space can support, the space is an unconfined space. You will need no additional fresh air ventilation.
the heater may be operated is smaller than that defined as an unconfined space, provide ad­equate combustion and ventila­tion air by one of the methods described in the
Gas Code, ANSI Z223.1, 1992, Section 5.3 or applicable local codes.
46,100 Btu/Hr (maximum
the space can support)
50,000 Btu/Hr (actual
amount of Btu/Hr used)
an adjoining room. If the extra space provides an unconfined space, remove door to adjoining room or add ventila­tion grills between rooms. See V entila-
tion Air From Inside Building, page 5.
V entilation Air From Outdoors, page 5.
Btu/Hr size makes room unconfined.
WARNING: If the area in which
National Fuel
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AIR FOR COMBUSTION AND VENTILATION
Continued
VENTILATION AIR
OWNER’S MANUAL
12"
Ventilation Air From Inside Building
This fresh air would come from an adjoining unconfined space. When ventilating to an adjoining unconfined space, you must pro­vide two permanent openings: one within 12" of the ceiling and one within 12" of the floor on the wall connecting the two spaces (see options 1 and 2, Figure 2). You can also remove door into adjoining room (see op­tion 3, Figure 2). Follow the National Fuel
Gas Code NFPA 54/ANSI Z223.1, Section
5.3, Air for Combustion and Ventilation for
required size of ventilation grills or ducts.
WARNING: Rework work­sheet, adding the space of the adjoining unconfined space. The combined spaces must have enough fresh air to supply all appliances in both spaces.
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. These spaces include attics and crawl spaces.
IMPORTANT:
for inlet or outlet air into attic if attic has a thermostat-controlled power vent. Heated air entering the attic will activate the power vent.
Do not provide openings
Ventilation
Grills
into Adjoining
Room,
Option 1
Figure 2 - Ventilation Air from Inside Building
Or
Remove Door into Adjoining
Room,
Option 3
Outlet Air
12"
Ventilated Attic
Outlet Air
Ventilation Grills
Into Adjoining Room,
Option 2
To Attic
101851
Inlet Air
Inlet Air
Figure 3 - Ventilation Air from Outdoors
5
To
Crawl
Space
Ventilated
Crawl Space
VANGUARD VN6C AND VN10
36"
3"
FLOOR
CEILING
Minimum
Minimum To Top Surfac Of Carpeting, Tile Or Ot Combustible Material
8" Minimum From Sides Of Heater
Right Side
Left Side
NATURAL GAS HEATER
INSTALLING TO WALL
NOTICE: A qualified service per­son must install heater. Follow all local codes.
CHECK GAS TYPE
Use only natural gas. If your gas supply is not natural, do not install heater. Call dealer where you bought heater for proper type heater.
INSTALLATION ITEMS
Before installing heater, make sure you have the items listed below.
• piping (check local codes)
• sealant (resistant to propane/LP gas)
• manual shutoff valve *
• ground joint union
• test gauge connection * (see Figure 12, page 8).
• sediment trap
• tee joint
• pipe wrench
* An A.G.A. design-certified manual shutoff valve with 1/8" NPT tap is an acceptable alternative to test gauge connection. Pur­chase the optional A.G.A. design-certified manual shutoff valve from your dealer. See Accessory, page 15.
LOCATING HEATER
This heater is designed to be mounted on a wall.
WARNING: Maintain the mini-
mum clearances shown in Figure
4. If you can, provide greater clear­ances from floor, ceiling, and join­ing wall.
WARNING: Never install the
heater
• in a bathroom (VN10 only)
• in a recreational vehicle
• where curtains, furniture, clothing, or other flammable objects are less than 36 inches from the front, top, or sides of the heater
• as a fireplace insert
• in high traffic areas
• in windy or drafty areas
CAUTION: This heater cre­ates warm air currents. These currents move heat to wall sur­faces next to heater. Installing heater next to vinyl or cloth wall coverings or operating heater where impurities in the air (such as tobacco smoke) exist, may discolor walls.
Minimum To Top Surface Of Carpeting, Tile or Other Combustible Material
Figure 4 - Mounting Clearances As Viewed From Front of Heater
INSTALLING HEATER TO WALL
Marking Screw Locations
1. Determine where you will locate heater.
WARNING: Maintain minimum clearances shown in Figure 5. If you can, provide greater clear­ances from floor and joining wall.
IMPORTANT:
Vent-free heaters add mois­ture to the air. Although this is beneficial, installing heater in rooms without enough ventilation air may cause mildew to form from too much moisture. See Air for Com- bustion and Ventilation, pages 3 through 5.
CAUTION: If you install the
heater in a home garage
• heater pilot and burner must be at least 18 inches above floor
• locate heater where moving vehicle will not hit it
For convenience and efficiency, install heater
• where there is easy access for op­eration, inspection, and service
• in coldest part of room
6
2. Mark two mounting screw locations on wall (see Figure 5).
10 7/8"
Minimum To
Maintain 8"
Clearance From Wall
JOINING WALL
Figure 5 - Mounting Screw Locations
7 3/4"
Mounting
Screw
Locations
FLOOR
20 1/4"
Minimum To
Maintain 3"
Clearance
From Floor
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