Table of Contents
Advertisement
Quick Links
UNVENTED (VENT-FREE) BLUE FLAME GAS HEATER
SAFETY INFORMATION AND INSTALLATION MANUAL
MODELS VN20BT, VP20BT VN30BT AND VP30BT
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.
— 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 quali-
fied installer, service agency or the gas supplier.
For more information, visit www.desatech.com
Save this manual for future reference.
Advertisement
Table of Contents
Related Manuals for Desa VN20BT
Summary of Contents for Desa VN20BT
- Page 1 UNVENTED (VENT-FREE) BLUE FLAME GAS HEATER SAFETY INFORMATION AND INSTALLATION MANUAL MODELS VN20BT, VP20BT VN30BT AND VP30BT 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
WARNING: Improper installation, adjustment, altera- tion, service or maintenance can cause injury or prop- erty damage. Refer to this manual for correct installation and operational procedures. For assistance or addi- tional information consult a qualified installer, service agency or the gas supplier. WARNING: This is an unvented gas-fired heater. -
Page 3: Safety Information
SAFETY INFORMATION 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, electrical shock and carbon monoxide poisoning. DANGER: Carbon monoxide poisoning may lead to death! Carbon Monoxide Poisoning:... -
Page 4: Local Codes
SAFETY INFORMATION Continued 6. Keep all air openings in front and bottom of heater clear and free of debris. This will insure enough air for proper combustion. 7. If heater shuts off, do not relight until you provide fresh, outside air. If heater keeps shutting off, have it serviced. -
Page 5: Air For Combustion And Ventilation
AIR FOR COMBUSTION AND VENTILATION WARNING: This heater shall not be installed in a confined space or unusually tight con- struction unless provisions are provided for adequate combus- tion and ventilation air. Read the following instructions to insure proper fresh air for this and other fuel-burning appliances in your home. -
Page 6: Air For Combustion
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 con- fined or unconfined space. Space: Includes the room in which you will install heater plus any adjoining rooms with doorless pas- sageways or ventilation grills between the rooms. -
Page 7: Installation
AIR FOR COMBUSTION AND VENTILATION Continued VENTILATION AIR Ventilation Air From Inside Building This fresh air would come from an adjoining un- confined space. When ventilating to an adjoining unconfined space, you must provide two perma- nent openings: one within 12” of the ceiling and one within 12”... -
Page 8: Installation Items
INSTALLATION Continued INSTALLATION ITEMS Before installing heater, make sure you have the items listed below. • for propane/LP gas, external regulator (supplied by installer) • piping (check local codes) • sealant (resistant to propane/LP gas) • equipment shutoff valve * •... -
Page 9: Thermostat Sensing Bulb
Hole On Each End Floor Models VN30BT & VP30BT 8" 14" Min. Only Insert Mounting Screws Through Last Hole On Each End Floor Models VN20BT & VP20BT 8" Min. Only Insert " Screws Thr Min. Hole On E " Min. - Page 10 INSTALLATION Continued Attaching Mounting Bracket To Wall Note: Wall anchors, mounting screws and spacers are in hardware package. The hardware package is provided with heater. Attaching To Wall Stud Method For attaching mounting bracket to wall studs 1. Drill holes at marked locations using 9/64" drill bit.
- Page 11 INSTALLATION Continued 4. If installing bottom mounting screws into hollow or solid wall, install wall anchors. Follow steps 1 through 4 under Attaching To Wall Anchor Method, page 10 If installing bottom mounting screw into wall stud, drill holes at marked locations using 9/64"...
- Page 12 If pipe is too small, undue loss of volume will occur. Typical Inlet Pipe Diameters VN20BT, VP20BT - 3/8" or greater VN30BT, VP30BT - 1/2" or greater Installation must include equipment shutoff valve, union and plugged 1/8" NPT tap. Locate NPT tap within reach for test gauge hook up.
- Page 13 INSTALLATION Continued CAUTION: For propane/LP gas, make sure external regula- tor has been installed between propane/LP supply and heater. See guidelines under Connect- ing to Gas Supply, page 11. PRESSURE TESTING GAS SUPPLY PIPING SYSTEM Test Pressures In Excess Of 1/2 PSIG (3.5 kPa) 1.
-
Page 14: Operating Heater
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. A. This appliance has a pilot which must be lighted by hand. -
Page 15: Manual Lighting Procedure
OPERATING HEATER Continued 8. Turn control knob counterclockwise to desired heating level. The main burner should light. Set control knob to any heat level between 1 and 5. CAUTION: Do not try to ad- just heating levels by using the equipment shutoff valve. -
Page 16: Cleaning And Maintenance
Figure 23 - Correct Burner Flame Pattern Yellow Tipping Figure 24 - Incorrect Burner Flame Pattern CLEANING AND MAINTENANCE WARNING: Turn off heater and let cool before cleaning. CAUTION: You must keep control areas, burner and circu- lating air passageways of heater clean. -
Page 17: Specifications
26.25 x 21.25 x 9 26.25 x 29 x 9 SERVICE PUBLICATIONS You can purchase a service manual from the address listed on the back page of this manual. Send a check for $5.00 payable to DESA Heat- ing Products. www.desatech.com... -
Page 18: Troubleshooting
WARNING: Turn off and unplug 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 19 OBSERVED PROBLEM ODS/pilot lights but flame goes out when control knob is released 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 107886-01J TROUBLESHOOTING...
- Page 20 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 21: Replacement Parts
PARTS UNDER WARRANTY Contact authorized dealers of this product. If they canʼt supply original replacement part(s), call DESA Heating Productsʼ Technical Service Department at 1-866-672-6040. When calling DESA Heating Products, have ready • your name •... -
Page 22: Illustrated Parts Breakdown And Parts List
ILLUSTRATED PARTS BREAKDOWN MODELS VN20BT, VP20BT VN30BT, VP30BT www.desatech.com 107886-01J... -
Page 23: Parts List
This list contains replaceable parts used in your heater. When ordering parts, follow the instructions listed under Replacement Parts on page 21 of this manual. PART NUMBER VN20BT VP20BT 097159-04 097159-04 097159-04 097159-04 Piezo Ignitor 107672-01 107672-01 107675-01 107675-01 Front Panel... -
Page 24: Warranty Information
VENT-FREE RESIDENTIAL GAS 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.
Need help?
Do you have a question about the VN20BT and is the answer not in the manual?
Questions and answers