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Vanguard MINI-HEARTH VMH3000TNS Owner's Operation And Installation Manual

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VENT-FREE NATURAL GAS
MINI-HEARTH
OWNER'S OPERATION AND INSTALLATION MANUAL
VMH3000TNS
15,000 to 30,000 Btu/Hr
with Thermostat
WARNING: If the information in this manual is not
followed 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 qualified installer, service agency, or the
gas supplier.
This appliance may be installed in an aftermarket* manufactured (mobile) home, where not prohibited
by state or local codes.
*Aftermarket: Completion of sale, not for purpose of resale, from the manufacturer. (i.e. Installation of this product is permitted
after the manufactured (mobile) home is sited)
Save this manual for future reference.
®
®
HEATER
Shown With Optional
Mantel Which Features
a Built In Base
WARNING: Improper installa-
tion, adjustment, alteration,
service, or maintenance can
cause injury or property dam-
age. Refer to this manual for
correct installation and op-
erational procedures. For as-
sistance or additional infor-
mation consult a qualified in-
staller, service agency, or the
gas supplier.
WARNING: This is an unvented
gas-fired heater. It uses air
(oxygen) from the room in
which it is installed. Provisions
for adequate combustion and
ventilation air must be pro-
vided. Refer to Air For Com-
bustion and Ventilation sec-
tion on page 5 of this manual.
®

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Summary of Contents for Vanguard MINI-HEARTH VMH3000TNS

  • Page 1 ® VENT-FREE NATURAL GAS ® MINI-HEARTH HEATER OWNER’S OPERATION AND INSTALLATION MANUAL VMH3000TNS ® 15,000 to 30,000 Btu/Hr with Thermostat Shown With Optional Mantel Which Features a Built In Base WARNING: Improper installa- WARNING: If the information in this manual is not tion, adjustment, alteration, followed exactly, a fire or explosion may result service, or maintenance can...

  • Page 2: Safety Information

    ® GAS RESIDENTIAL HEATERS SAFETY • if you cannot reach your gas supplier, 15. Turn off and unplug heater and let cool call the fire department before servicing. Only a qualified service INFORMATION person should service and repair heater. 3. This heater shall not be installed in a bedroom or bathroom.

  • Page 3: Product Identification

    OWNER’S MANUAL PRODUCT UNPACKING Note: Do not remove Lighting and Warning IDENTIFICATION Plates from heater CAUTION: Do not remove the Control Knob metal data plates attached to the Ignitor Button heater base assembly. The data plates contain important warranty Lighting and information.
  • Page 4 ® GAS RESIDENTIAL HEATERS ASSEMBLY Slide other end of adjusting plate/shim in slot on mitered edge of side brass Continued trim (see Figure 6). While firmly holding edges of brass Heater Cabinet trim together, tighten both set screws Deflector on the adjusting plate with slotted screwdriver.

  • Page 5: Air For Combustion And Ventilation

    OWNER’S MANUAL PROVIDING ADEQUATE Confined and Unconfined Space AIR FOR VENTILATION The National Fuel Gas Code (ANS Z223.1, COMBUSTION AND 1992 Section 5.3) defines a confined space The following are excerpts from National VENTILATION as a space whose volume is less than 50 Fuel Gas Code.

  • Page 6: Determining Fresh-Air Flow For Heater Location

    ® GAS RESIDENTIAL HEATERS AIR FOR COMBUSTION AND VENTILATION Continued DETERMINING FRESH-AIR FLOW FOR HEATER LOCATION Determining if You Have a Confined or Unconfined Space Use this worksheet to determine if you have a confined or unconfined space. Space: Includes the room in which you will install heater plus any adjoining rooms with doorless passageways or ventilation grills between the rooms.
  • Page 7 OWNER’S MANUAL AIR FOR COMBUSTION AND 12" VENTILATION Continued VENTILATION AIR Ventilation Grills Into Adjoining Room, Ventilation Air From Inside Ventilation Option 2 Grills Building into Adjoining Remove Room, Door into This fresh air would come from an adjoining Option 1 Adjoining unconfined space.

  • Page 8: Check Gas Type

    ® GAS RESIDENTIAL HEATERS INSTALLATION LOCATING HEATER CAUTION: This heater cre- ates warm air currents. These WARNING: Maintain the mini- NOTICE: This heater is intended currents move heat to wall sur- mum clearances shown in Figure for use as supplemental heat. Use faces next to heater.

  • Page 9: Thermostat Sensing Bulb

    OWNER’S MANUAL INSTALLATION INSTALLATION OPTIONS Marking Screw Locations Tape mounting bracket to wall where Continued There are three options for mounting this heater will be located. Make sure heater. THERMOSTAT SENSING mounting bracket is level. A. Mounting heater to wall BULB B.
  • Page 10 ® GAS RESIDENTIAL HEATERS INSTALLATION Placing Heater On Mounting Installing Bottom Mounting Bracket Screws Continued Locate two horizontal slots on back Locate two bottom mounting holes. Attaching To Wall Anchor Method panel of heater. These holes are near bottom on back panel of heater (see Figure 17).
  • Page 11 OWNER’S MANUAL INSTALLATION Mounting Heater to Optional Securing Hearth Base to Floor Hearth Base Position hearth base in desired location. Continued Mark holes for drilling (See Figure 18). Lay heater on its back on a table with B. MOUNTING HEATER ON Remove hearth base.

  • Page 12: Connecting To Gas Supply

    ® GAS RESIDENTIAL HEATERS INSTALLATION CONNECTING TO GAS Installation must include a manual shutoff valve, union, and plugged 1/8" NPT tap. SUPPLY Continued Locate NPT tap within reach for test gauge hook up. NPT tap must be upstream from C. MOUNTING HEATER TO WARNING: A qualified service heater (see Figure 20).

  • Page 13: Checking Gas Connections

    OWNER’S MANUAL INSTALLATION Test Pressures Equal To or Less Than Pressure Testing Heater Gas 1/2 PSIG (3.5 kPa) Connections Continued 1. Close manual shutoff valve (see Fig- Open manual shutoff valve (see Figure CHECKING GAS ure 21). 21). CONNECTIONS 2. Pressurize supply piping system by 2.

  • Page 14: Operating Heater

    ® GAS RESIDENTIAL HEATERS OPERATING LIGHTING Keep control knob pressed in for 30 seconds after lighting pilot. After 30 INSTRUCTIONS HEATER seconds, release control knob. STOP! Read the safety information • If control knob does not pop up FOR YOUR SAFETY in column 1.

  • Page 15: Inspecting Burner

    OWNER’S MANUAL OPERATING INSPECTING BURNER FLAME PATTERN HEATER BURNER Figure 27 shows a correct burner flame pattern. Figure 28 shows an incorrect burner Continued Check pilot flame pattern and burner flame flame pattern. The incorrect burner flame pattern often. pattern shows yellow tipping of the flame. It THERMOSTAT also shows the flame higher than one inch CONTROL OPERATION...

  • Page 16: Troubleshooting

    ® GAS RESIDENTIAL HEATERS TROUBLESHOOTING CAUTION: Never use a wire, WARNING: Turn off and un- needle, or similar object to clean plug heater and let cool before Note: For additional help, visit DESA ODS/pilot. This can damage ODS/ servicing. Only a qualified ser- International’s Technical Service web pilot unit.
  • Page 17 OWNER’S MANUAL TROUBLESHOOTING Continued OBSERVED PROBLEM POSSIBLE CAUSE REMEDY Burner does not light after ODS/pilot is lit 1. Burner orifice is clogged 1. Clean burner (see Cleaning and Mainte- nance, page 19) or replace burner orifice 2. Burner orifice diameter is too small 2.
  • Page 18 ® GAS RESIDENTIAL HEATERS TROUBLESHOOTING Continued 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. Follow the gas supplier’s instructions.

  • Page 19: Cleaning And Maintenance

    OWNER’S MANUAL CLEANING AND REPLACEMENT 4. Check the injector holder located at the end of the burner tube again. Remove MAINTENANCE PARTS any large particles of dust, dirt, lint, or pet hairs with a soft cloth or vacuum Note: Use only original replacement parts. cleaner nozzle.

  • Page 20: Illustrated Parts Breakdown

    ® GAS RESIDENTIAL HEATERS ILLUSTRATED PARTS BREAKDOWN VMH3000TNS 12-1 12-2 106055...

  • Page 21: Parts List

    OWNER’S MANUAL PARTS LIST This list contains replaceable parts used in your heater. When ordering parts, follow the instructions listed under Replacement Parts on page 19 of this manual. VMH3000TNS VMH3000TNS PART NO. DESCRIPTION QTY. 098304-01 Screw, #10 x 3/8" 100566-01CK Front Panel 100573-01BR...

  • Page 22: Specifications

    ® GAS RESIDENTIAL HEATERS SPECIFICATIONS TECHNICAL SERVICE Btu (Variable) 15,000/30,000 Type Gas Natural Only You may have further questions about in- Ignition Piezo stallation, operation, or Trouble Shooting. Pressure Regulator Setting 3" W.C. If so, contact DESA International’s Techni- Inlet Gas Pressure (in. of water) * cal Service Department at 1-800-323-5190.
  • Page 23 OWNER’S MANUAL ACCESSORIES Purchase these heater accessories from your local dealer. If they can not supply these accessories call DESA International’s Sales Department at 1-800-458-2472 for infor- mation. You can also write to the address listed on the back page of this manual. HEARTH BASE - GHB802 Series For locating heater on the floor.

  • Page 24: Warranty Information

    WARRANTY INFORMATION KEEP THIS WARRANTY Model ________________________________ Serial No. _____________________________ Date Purchased ________________________ Always specify model and serial numbers when communicating with the factory. We reserve the right to amend these specifications at any time without notice. The only warranty applicable is our standard written warranty.

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