Vanguard VMH3000TNSA Owner'S Operation And Installation Manual Download Page 2

2

107101

NATURAL GAS RESIDENTIAL HEATERS

®

For more information, visit www.desatech.com

SAFETY
INFORMATION

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

 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
warnings. Keep this manual for reference. It
is your guide to safe and proper operation of
this heater.

 WARNING: Do not allow fans

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

 WARNING: Do not use a

blower insert, heat exchanger
insert, or other accessory not ap-
proved for use with this heater.

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

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 same room
with heater.

Make sure screen is in place be-
fore running 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

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.

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

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.

Never place any objects on the heater.

9.

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.

10. To prevent the creation of soot, follow

the instructions in Cleaning and Main-
tenance, 
page 19.

11. Turn off and unplug heater and let cool

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

12. Operating heater above elevations of

4,500 feet could cause pilot outage.

Summary of Contents for VMH3000TNSA

Page 1: ... 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 byaqualifiedinstaller serviceagency orthe gas supplier WARNING Improper installa tion adjustment alteration service or maintenance can caus...

Page 2: ...ear 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 same room with heater Make sure screen is in place be fore runn...

Page 3: ...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 kd idk oe mk go dk irln fgp d f AS DF KIG LF JI als kd idk oe mk go dk irln fgp d f AS DF KIG LF JI als kd idk oe mk go dk irln fgp d f AS DF KIG LF JI als kd idk oe mk go dk irln fgp d f AS DF KIG LF JI al...

Page 4: ... on front of heater cabinet Attach on top and sides with four brass screws included in hard ware package see Figure 6 9 Reattach front panel to heater if you are going to mount the heater to the base Do not reattach front panel at this time if you are going to mount heater to wall Figure 5 Assembling Brass Trim Figure 6 Attaching Brass Trim to Heater Attaching Brass Front Trim to Front Panel 1 Loc...

Page 5: ...per pa sec m2 or less with 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 tween sole plates and floors be tween wall ceiling joints be tween wall panels at penetra tions for plumbing electrical and gas lines and at other openings If your home meets all ...

Page 6: ...e direct vent gas appliances 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 51 200 Btu Hr maximum the space can support 60 000 Btu Hr actual amount of Btu Hr used T...

Page 7: ...Inside Building Outlet Air Ventilated Attic Outlet Air Inlet Air Inlet Air Ventilated Crawl Space To Crawl Space To Attic Figure 8 Ventilation Air from Outdoors AIR FOR COMBUSTION AND VENTILATION Continued WARNING Rework work sheet 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 ...

Page 8: ...ave the items listed below piping check local codes sealant resistant to propane LP gas equipment shutoff valve ground joint union test gauge connection sediment trap tee joint pipe wrench An CSA design certified equipment shutoff valve with 1 8 NPT tap is an ac ceptable alternative to test gauge connec tion Purchase the optional CSA design certifiedequipmentshutoffvalvefromyour dealer See Accesso...

Page 9: ...nters 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 hold Insert mounting screws through mounting bracket and into wall studs Attaching To Wall Anchor This method allows you to attach mounting bracket to hollow walls wall areas between studs or to solid walls concrete or masonry Decid...

Page 10: ...ed hole 8 Tighten both 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 13 Figure 15 Installing Bottom Mounting Screws Attaching To Wall Anchor Method For attaching mounting bracket to hollow walls wall areas between studs or solid walls concrete or...

Page 11: ...all cut with a sharp knife 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 deep hole using a 1 4 diameter concrete drill bit Completely insert an chors into each hole 3 Mount heater to hearth base following steps under Mounting Heater to Op tional Hea...

Page 12: ...used in certain areas 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 valve union and plugged 1 8 NPT tap Locate NPT tap within reach for test gauge hook up NPT tap must be upstream from heater see Figure 18 IMPORTANT Installanequipmentshutoff valve ...

Page 13: ...kPa 1 Close equipment shutoff valve see Fig ure 19 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 valve see Figure 20 Apply mixture of liquid soap and water to gas joints Bubbles forming show a leak 4 Correct all leaks at once Pressure Testing Heater Gas Connections 1 Op...

Page 14: ...er to Troubleshooting pages 16 through 18 Also contact a qualified service person or gas supplier for repairs Untilrepairsaremade lightpilotwith match To light pilot with match see Manual Lighting Procedure page 15 FOR YOUR SAFETY READ BEFORE LIGHTING Shutting Off Heater 1 Turn control knob clockwise to the OFF position Note Knobmustbedepressedslightly 2 Turn off all electric power to the ap plian...

Page 15: ...g Instruc tions page 14 5 Replace front panel Figure 23 Correct Pilot Flame Pattern INSPECTING BURNER Figure 24 Incorrect Pilot Flame Pattern Check pilot flame pattern and burner flame pattern often PILOT FLAME PATTERN Figure23showsacorrectpilotflamepattern Figure 24 shows an incorrect pilot flame pattern Theincorrectpilotflameisnottouch ing the thermocouple This will cause the thermocouple to coo...

Page 16: ...e 8 Replace control valve 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 Broken ignitor cable 7 Bad piezo ignitor 1 Gas supply turned off or equipment shutoff valve closed 2 Control knob not in PILOT position 3 Control knob not pressed in while in PILOT ...

Page 17: ...19 or replace burner orifice 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 burner Burner backfiring during combustion Yellow flame during burner combustion Slight smoke or odor during initial operation Heater produces a whistling noise when burner is l...

Page 18: ... during combustion POSSIBLE 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 1 Not enough fresh air is available 2 Low line pressure 3 ODS pilot is partially clogged 1 Gas leak SeeWarning statement at top of page 2 Control valve defective 1 Foreign...

Page 19: ...ntact your local natural 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 Keep these holes clear of dust dirt lint and pet hair Clean these air inlet holes prior to each heating season Blocked air holes will cre ate soot We recommend that you clean t...

Page 20: ...1 NATURAL GAS RESIDENTIAL HEATERS For more information visit www desatech com ILLUSTRATED PARTS BREAKDOWN VMH3000TNSA 1 2 9 10 10 12 13 14 15 17 19 20 23 24 25 6 26 6 7 1 1 3 1 28 5 16 18 4 22 1 1 1 21 11 8 27 ...

Page 21: ...itor Cable 1 11 098249 01 Nut M5 2 12 107485 01 ODS Pilot Assembly 1 13 103447 01 Burner 1 14 099387 03 3 16 Pilot Tubing 1 15 103845 12 Injector 1 16 NJF 8C Nut Hex 1 17 099415 11 Pressure Regulator 1 18 103408 01 Burner Bracket 2 19 105293 01 3 8 Outlet Burner Tubing 1 20 105292 01 3 8 Inlet Tubing 1 21 107218 01 Deflector Baffle 1 22 107060 01 Log Strap 2 23 105291 01 Thermostat Gas Valve 1 24 ...

Page 22: ...vice Department at 1 800 323 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 Setting 3 W C Inlet Gas Pressure in of water Maximum 10 5 Minimum 5 Dimensions Inches H x W x D Heater 23 75 x 25 9 x 8 5 Carton 25 8 x 28 7 x 10 1 Weight pounds Heater 29 Shipping ...

Page 23: ...llation instructions included EQUIPMENT SHUTOFF VALVE GA5010 Equipmentshutoffvalvewith1 8 NPTtap HEARTH BASE GHB802 Series For locating heater on the floor Includes brass trim Complete installation instruc tions included ACCESSORIES Purchasetheseheateraccessoriesfromyour local dealer If they can not supply these accessoriescallDESAInternational sSales Department at 1 800 458 2472 for infor mation ...

Page 24: ...with 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 as a result of misuse accidents lack of proper maintenance or defects caused by improper installation Travel diagnostic cost labor transportationandanyandallsuchothercostsrelatedtorepairingadefect...

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