Vanguard VMH3000TN Owner'S Operation And Installation Manual Download Page 3

3

104431

OWNER’S MANUAL

PRODUCT
FEATURES

SAFETY DEVICE

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 IGNITION SYSTEM

This heater has a piezo ignitor. This system
requires no matches, batteries, or other
sources to light heater.

THERMOSTATIC HEAT
CONTROL

This heater has a thermostat sensing bulb
and a control valve. This results in the great-
est heater comfort. This can also result in
lower gas bills.

PRODUCT
IDENTIFICATION

Figure 1 - Vent-Free Gas Log Propane/LP Gas Space Heater

1.

Remove heater from carton.

2.

Remove all protective packaging ap-
plied to heater for shipment.

3.

Make sure your heater includes two
hardware packets.

4.

Check heater for any shipping damage.
If heater is damaged, promptly inform
dealer where you bought heater.

ASSEMBLY

ASSEMBLING HEATER

Tools Required:

• Phillips screwdriver
• 5/16" hex wrench
• slotted screwdriver

Removing Front Panel Of Heater

1.

Remove two screws near bottom cor-
ners of front panel with Phillips screw-
driver.

2.

Pull bottom of front panel forward, then
down (see Figure 2) .

Figure 2 - Removing Front Panel of Heater

Figure 3 - Attaching Ignitor Cable to Piezo
Ignitor

Continued

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Ignitor Button

Screen

Front
Panel

Heater
Cabinet

Log

Lighting and
Warning Plates

Control Knob

Installing Log

Note:

 For easier installation, lay heater on

its back.
1.

Remove log from inside top of heater.
Discard protective packaging.

2.

Attach ignitor cable to piezo ignitor
(see Figure 3).

3.

With Phillips screwdriver, remove four
screws holding screen in place. Re-
move screen.

4.

Gently slide log between log retaining
brackets on deflector assembly (see Fig-
ure 4, page 4). The log should fit firmly
against bottom of log retaining brackets.

5.

Reattach screen using four screws re-
moved in step 3.

Note: Do not remove
Lighting and Warning
Plates from heater

UNPACKING

 CAUTION: Do not remove the

metal data plates attached to the
heater base assembly. The data
plates contain important warranty
information.

Piezo Ignitor

Ignitor
Cable

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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