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104274

VENT-FREE NATURAL GAS HEATER

®

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.

SAFETY
INFORMATION

WARNING ICON

G 001

 WARNINGS

IMPORTANT: Read this owner’s
manual carefully and completely
before trying to assemble, oper-
ate, or service this heater. Im-
proper use of this heater can
cause serious injury or death from
burns, fire, explosion, and car-
bon monoxide poisoning.

 DANGER: Carbon monoxide

poisoning may lead to death!

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 VN10A shall not be in-
stalled in a bathroom.

4.

Always run heater with control knob
at LOW or HIGH locked positions
(VN10A) or ON position (VN6D).
Never set control knob between locked
positions. Poor combustion may result.

5.

This heater needs fresh, outside air ven-
tilation to run properly. This heater has
an oxygen depletion sensing (ODS)
safety shutoff system. The ODS shuts
down the heater if not enough fresh air
is available. See Air for Combustion
and Ventilation,
 pages 4 through 6.

6.

Keep all air openings in front and bot-
tom 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.

8.

Do not run heater
• where flammable liquids or vapors

are used or stored

• under dusty conditions

9.

Before using furniture polish, wax, car-
pet cleaner, or similar products, turn
heater off. If heated, the vapors from
these products may create a white pow-
der residue within burner box or on
adjacent walls or furniture.

10. Do not use heater if any part has been

under water. Immediately call a quali-
fied 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.

11. Turn off heater and let cool before ser-

vicing. Only a qualified service person
should service and repair heater.

12. Operating heater above elevations of

4,500 feet could cause pilot outage.

 WARNING: Any change to

this heater or its controls can be
dangerous.

Do not place clothing or other
flammable material on or near
the appliance. Never place any
objects on the heater.

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 re-
main hot for a time after shut-
down. Allow surface to cool be-
fore touching.

Carefully supervise young chil-
dren when they are in the same
room with heater.

Make sure grill guard is in place
before running heater.

Keep the appliance area clear and
free from combustible materials,
gasoline and other flammable
vapors and liquids.

Due to high temperatures, the
appliance should be located out
of traffic and away from furniture
and draperies.

 WARNING: Do not use any

accessory not approved for use
with this heater.

Summary of Contents for VN10A

Page 1: ...a qualified installer service agency or the gas supplier WARNING This is an unvented gas fired heater Itusesair oxygen fromthe roominwhichitisinstalled Provisions for adequate combustionandventilation air must be provided Refer to Air For Combustion and Ventilation section on page 4 of this manual WARNING Improper instal lation adjustment alteration service or maintenance can causeinjuryorproperty...

Page 2: ...outside air ven tilation to run properly This heater has an oxygen depletion sensing ODS safety shutoff system The ODS shuts down the heater if not enough fresh air is available See Air for Combustion and Ventilation pages 4 through 6 6 Keep all air openings in front and bot tom of heater clear and free of debris This will insure enough air for proper combustion 7 If heater shuts off do not religh...

Page 3: ...ging ap plied to heater for shipment 3 Check heater for any shipping damage If heater is damaged promptly inform dealer where you bought heater PRODUCT FEATURES SAFETY PILOT This heater has a pilot with an Oxygen Depletion Sensing ODS safety shutoff system The ODS pilot is a required feature for vent free room heaters The ODS pilot shuts off the heater if there is not enough fresh air PIEZO IGNITI...

Page 4: ...nces This will insure proper venting of vented fuel burning appliances PROVIDING ADEQUATE VENTILATION The following are excerpts from National Fuel Gas Code NFPA 54 ANS Z223 1 Sec tion5 3 AirforCombustionandVentilation All spaces in homes fall into one of the three following ventilation classifications 1 Unusually Tight Construction 2 Unconfined Space 3 Confined Space The information on pages 5 an...

Page 5: ...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 Do not include direct vent gas appliances Direct vent draws combustion air from the outdoo...

Page 6: ...atticwillactivatethepowervent Or Remove Door into Adjoining Room Option 3 Ventilation Grills Into Adjoining Room Option 2 12 12 Ventilation Grills into Adjoining Room Option 1 Figure 2 Ventilation Air from Inside Building VENTILATION AIR Ventilation Air From Inside Building Thisfreshairwouldcomefromanadjoining unconfined space When ventilating to an adjoining unconfined space you must pro vide two...

Page 7: ...e From Floor FLOOR JOINING WALL INSTALLATION WARNING A qualified ser vice 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 Beforeinstallingheater makesureyouhave the items listed below piping check local codes sealant resistant t...

Page 8: ...ver tighten Note Do not replace front panel at this time Replace front panel after making gas connections and checking for leaks see pages 9 and 10 Figure 7 Popping Open Anchor Wings For Thin Walls Thin Walls 1 4 to 1 2 thick Installing Two Mounting Screws Note Wall anchors and mounting screws areinhardwarepackage Thehardwarepack age is provided with heater Attaching To Wall Stud Method For attach...

Page 9: ...small undue loss of pressure will occur Installationmustincludeaequipmentshutoff valve ground joint union and plugged 1 8 NPT tap Locate NPT tap within reach for test gauge hook up NPT tap must be up stream from heater see Figure 12 An appliancemaingasvalve equipmentshutoff valve shall be provided in an accessible location for turning on or shutting off the gas to the appliance Installsedimenttrap...

Page 10: ...i ther using compressed air or opening main gas valve located on or near gas meter 3 Check all joints from gas meter to equip ment shutoff valve see Figure 14 Ap ply mixture of liquid soap and water to gas joints Bubbles forming show a leak 4 Correct all leaks at once CHECKING GAS CONNECTIONS WARNING Test all gas pip ing and connections for leaks after installing or servicing Cor rect all leaks at...

Page 11: ... this heater for the first time after hook ing up to gas supply If so the con trol knob may need to be pressed in for 30 seconds This will allow air to bleed from the gas system If control knob does not pop up when released contact a qualified service person or gas supplier for repairs 6 With control knob pressed in push down and release ignitor button This will light pilot The pilot is attached t...

Page 12: ...n Figure 19 turn heater off see To Turn Off Gas to Appliance page 11 see Troubleshooting pages 13 through 15 INSPECTING BURNER Figure 19 Incorrect Pilot Flame Pattern Figure 18 Correct Pilot Flame Pattern 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 Wipe the cabi net to remove dust CLEANING BURNER PIL...

Page 13: ... Turn on gas supply or open equipment 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 operation until air is re moved 5 Clean ODS pilot see Cleaning and Maintenance page 12 or replace ODS pilot assembly 6 Replace gas regulator 1 Press in control knob fully 2 After ODS pilot lights keep control ...

Page 14: ... local natural gas company 3 Replace burner 4 Replace gas regulator 1 Replace burner 2 Contact local natural gas company 3 Turn control knob until it locks at de sired setting 1 Problem will stop after a few hours of operation 1 This is common with most heaters If noise is excessive contact qualified ser vice person 1 Turn heater off when using furniture polish wax carpet cleaners or similar produ...

Page 15: ...tionnoticedonwindows POSSIBLE CAUSE 1 Heater burning vapors from paint hair spray glues etc See IMPORTANT statement above 2 Gas leak See Warning statement above 1 Not enough fresh air is available 2 Low line pressure 3 ODS pilot is partially clogged 1 Gas leak See Warning statement above 2 Control valve defective 1 Foreign matter between control valve and burner 2 Gas leak See Warning statement ab...

Page 16: ... 7 2 098594 01 Ignitor Electrode 1 8 099884 01 Burner Assembly 1 9 099056 04 Injector 1 10 099390 01 Tubing Valve to burner 1 11 099387 05 Pilot Tubing Valve to pilot 1 12 099391 02 Tubing Regulator to valve 1 KEY PART NO NUMBER DESCRIPTION QTY 13 100829 01 Control Valve 1 14 099468 18 Cabinet Assembly 1 15 099415 14 Gas Regulator 1 16 098303 02 Screw 6 x 5 16 2 17 098508 01 Valve Retainer Nut 1 1...

Page 17: ... 7 2 098594 01 Ignitor Electrode 1 8 099884 02 Burner Assembly 1 9 099056 06 Injector 2 10 099390 02 Tubing Valve to plaque A 1 11 099387 05 Pilot Tubing Valve to pilot 1 12 099392 01 Tubing Valve to plaque B 13 099391 02 Tubing Regulator to valve 1 7 1 7 2 ODS PILOT ILLUSTRATED PARTS BREAKDOWN VN10A KEY PART NO NUMBER DESCRIPTION QTY 14 100432 01 Control Valve 1 15 099468 17 Cabinet Assembly 1 16...

Page 18: ...replaced under warranty PARTS UNDER WARRANTY Contact authorized dealer from whom you purchased this product If they cannot sup ply original replacement part s call DESA International s Technical Service Depart ment at 1 800 323 5190 for referral infor mation When contacting your dealer or DESA In ternational have ready your name your address model and serial numbers of your heater how heater was m...

Page 19: ...____________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ ___________________________________________________________________________________________...

Page 20: ...to repairing a defective heater will be the responsibility of the owner TO THE FULL EXTENT ALLOWED BY THE LAW OF THE JURISDICTION THAT GOVERNS THE SALE OF THE PRODUCT THIS EXPRESS WARRANTY EXCLUDES ANY AND ALL OTHER EXPRESSED WARRANTIES AND LIMITS THE DURATION OF ANY AND ALL IMPLIED WARRANTIES INCLUDING WARRANTIES OF MER CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE TO FOUR 4 YEARS ON ALL COMP...

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