Vanguard VMH3000TN Owner'S Operation And Installation Manual Download Page 2

2

104431

NATURAL GAS RESIDENTIAL HEATERS

®

LOCAL CODES

Install and use heater with care. Follow all
local codes. In the absence of local codes, use
the latest edition of The National Fuel Gas
Code ANS 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

SAFETY
INFORMATION

 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, electrical shock,
and carbon monoxide poisoning.

 DANGER: Carbon monoxide

poisoning may lead to death!

 WARNING: Any change to

this heater or its controls can be
dangerous.

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 work-
ing properly. Get fresh air at once! Have
heater serviced.   Some people are more af-
fected by carbon monoxide than others. These
include pregnant women, people with heart or
lung disease or anemia, those under the influ-
ence 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 warn-
ings. Keep this manual for reference. It is your
guide to safe and proper operation of this heater.

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

 WARNING: Do not use a

blower insert, heat exchanger
insert, or other accessory not
approved for use with this heater.

3.

This heater shall not be installed in a
bedroom or bathroom.

4.

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 5 through 7.

5.

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.

6.

If heater shuts off, do not relight until
you provide fresh, outside air. If heater
keeps shutting off, have it serviced.

7.

Do not run heater
• where flammable liquids or vapors

are used or stored.

• under dusty conditions.

8.

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.

9.

To prevent the creation of soot, follow
the instructions in Cleaning and Main-
tenance, 
page 19.

10. Turn off and unplug heater and let cool

before servicing. Only a qualified service
person should service and repair heater.

11. Operating heater above elevations of

4,500 feet could cause pilot outage.

 WARNING: Do not allow fans

to blow directly into the heater.
Avoid any drafts that alter burner
flame patterns. Ceiling fans can
create drafts that alter burner
flame patterns. Altered burner
patterns can cause sooting.

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

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

Surface of heater becomes very
hot when running heater. Keep
children and adults away from
hot surfaces to avoid burns or
clothing ignition. Fireplace will
remain hot for a time after shut-
down. Allow surfaces to cool be-
fore touching.

Make sure screen is in place be-
fore running heater.

Summary of Contents for VMH3000TN

Page 1: ...er serviceagency orthe gas supplier WARNING Improper installa tion adjustment alteration service or maintenance can cause injury or property dam age Refer to this manual for correct installation and o...

Page 2: ...or other accessory not approvedforusewiththisheater 3 This heater shall not be installed in a bedroom or bathroom 4 This heater needs fresh outside air ven tilation to run properly This heater has an...

Page 3: ...kdi dko em kgo dki rlnf gpd fAS DF KIG LF JI als kdi dko em kgo dki rlnf gpd f AS DF KIG LF JI als kdi dko em kgo dki rlnf gpd fAS DF KIG LF JI als kdi dko em kgo dki rlnf gpd f AS DF KIG LF JI als k...

Page 4: ...heater cabinet Attach on top and sides with four brass screws included in hard ware package see Figure 7 9 Reattach front panel to heater if you are going to mount the heater to the base Do not reatt...

Page 5: ...ith open ings gasketed or sealed and b weather stripping has been added on openable windows and doors and c caulking or sealants are applied to areas such as joints around window and door frames be tw...

Page 6: ...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 max...

Page 7: ...Air Ventilated Attic Outlet Air Inlet Air Inlet Air Ventilated Crawl Space To Crawl Space To Attic Figure 9 Ventilation Air from Outdoors AIR FOR COMBUSTION AND VENTILATION Continued WARNING Rework wo...

Page 8: ...ll 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 to prop...

Page 9: ...16 inches apart from their centers Attach mounting bracket to wall in one of two ways 1 Attaching to wall stud 2 Attaching to wall anchor Attaching To Wall Stud This method pro vides the strongest ho...

Page 10: ...screws until heater is firmly secured to wall Do not over tighten Note Do not replace front panel at this time Replace front panel after making gas connections and checking for leaks see pages 12 and...

Page 11: ...ife at marked locations before drilling If securing to a wood floor drill a 3 4 deep hole using a 1 8 diameter drill bit Do not use anchors in wood floors If securing to a concrete floor drill a 1 3 8...

Page 12: ...Check your local codes Use pipe of 1 2 or greater diameter to allow proper gas volume to heater If pipe is too small undue loss of pressure will occur Installation must include an equipment shutoff v...

Page 13: ...off valve see Fig ure 21 2 Pressurize supply piping system by either using compressed air or open ing main gas valve located on or near gas meter 3 Check all joints from gas meter to equipment shutoff...

Page 14: ...lot does not stay lit refer to Troubleshooting pages 16 through 18 Also contact a qualified service person or gas supplier for repairs Untilrepairsaremade lightpilotwith match To light pilot with matc...

Page 15: ...rect Pilot Flame Pattern Thermocouple Thermocouple INSPECTING BURNER Figure 26 Incorrect Pilot Flame Pattern Pilot Burner Pilot Burner Check pilot flame pattern and burner flame pattern often PILOT FL...

Page 16: ...ve POSSIBLE CAUSE 1 Ignitor electrode positioned wrong 2 Ignitor electrode broken 3 Ignitor electrode not connected to igni tor cable 4 Ignitor cable pinched or wet 5 Piezo ignitor nut is loose 6 Brok...

Page 17: ...ifice 1 Turn heater off when using furniture polish wax carpet cleaners or similar products TROUBLESHOOTING Continued OBSERVED PROBLEM Burner does not light after ODS pilot is lit Delayed ignition of...

Page 18: ...IBLE CAUSE 1 Metal expanding while heating or con tracting while cooling 1 Heater burning vapors from paint hair spray glues etc see IMPORTANT statement above 2 Gas leak SeeWarning statement at top of...

Page 19: ...gas supplier SERVICE HINTS CLEANING BURNER INJECTOR HOLDER AND PILOT AIR INLET HOLE The primary air inlet holes allow the proper amount of air to mix with the gas This provides a clean burning flame...

Page 20: ...20 104431 NATURAL GAS RESIDENTIAL HEATERS 12 1 12 2 ILLUSTRATED PARTS BREAKDOWN VMH3000TN 1 2 9 10 10 11 12 13 14 15 17 19 20 23 24 25 8 6 6 21 7 1 3 5 16 18 4 22 26 1...

Page 21: ...12 099440 05 ODS Pilot Assembly 1 12 1 098514 01 Thermocouple 1 12 2 098594 01 Ignitor Electrode 1 13 103447 01 Burner 1 14 099387 03 3 16 Pilot Tubing 1 15 103845 09 Injector 1 16 NJF 8C Nut Hex 1 1...

Page 22: ...0 323 5190 You can also visit DESA International s technical service web site at www desatech com SPECIFICATIONS Btu Variable 15 000 30 000 Type Gas Natural Only Ignition Piezo Pressure Regulator Sett...

Page 23: ...in a walnut finish or an unfinished hardwood ready to stain or paint Complete assembly and installation instructions included EQUIPMENT SHUTOFF VALVE GA5010 Equipmentshutoffvalvewith1 8 NPTtap HEARTH...

Page 24: ...all local codes and instructions furnished with the unit This warranty does not apply to parts that are not in original condition because of normal wear and tear or parts that fail or become damaged a...

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