Mr. Heater MHVFRD20LPBT Operating Instructions And Owner's Manual

Mr. Heater MHVFRD20LPBT Operating Instructions And Owner's Manual

Unvented lp-gas fired room heater

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READ INSTRUCTIONS CAREFULLY: Read and follow all instructions. Place instructions in a safe
place for future reference. Do not allow anyone who has not read these instructions to assemble,
light, adjust or operate the heater.
INSTALLER: Leave this manual with the appliance. CONSUMER: Retain this manual for future reference.
UNVENTED LP-GAS FIRED ROOM HEATER
Plaque Heaters
MHVFRD20LPBT
(BLOWER INCLUDED)
MHVFRD20LPT
(BLOWER SOLD SEPARATE)
MHVFRD30LPBT
(BLOWER INCLUDED)
MHVFRD30LPT
(BLOWER SOLD SEPARATE)
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
• Shut off gas supply
• Do not try to light any appliance
• Do not touch an 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.
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 provided. Refer to Fresh Air for Combustion
and Ventilation section on page 4 of this manual.
WARNING: Improper installation, adjustment, alteration, service or maintenance can cause injury or property
damage. Refer to this manual for correct installation and operational procedures. For assistance or additional
information consult a qualified installer, service agency, or gas supplier.
This appliance may be installed in an aftermarket permanently manufactured (mobile) home, where not prohibited
by local codes. This appliance is only for use with the type of gas indicated on the rating plate. This appliance is not
convertible for use with any other gas.
OPERATING INSTRUCTIONS
AND OWNER'S MANUAL
MR. HEATER, INC., 4560 W. 160
TH
ST., CLEVELAND, OHIO 44135 · 800-251-0001
Blue Flame Heaters
MHVFBF20LPBT
(BLOWER INCLUDED)
MHVFBF20LPT
(BLOWER SOLD SEPARATE)
MHVFBF30LPBT
(BLOWER INCLUDED)
MHVFBF30TLPT
(BLOWER SOLD SEPARATE)
2017 - CB

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Summary of Contents for Mr. Heater MHVFRD20LPBT

  • Page 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 any other gas. 2017 - CB MR. HEATER, INC., 4560 W. 160 ST., CLEVELAND, OHIO 44135 · 800-251-0001...
  • Page 2: Table Of Contents

    SOCIAL MEDIA In order to provide the best service possible Mr. Heater is now giving you more ways to get in touch with us: WEBSITE: Mr. Heater’s full line of product are now at: WWW.MRHEATER.COM...
  • Page 3: Specifications

    SPECIFICATIONS **Operating heater above elevations of 4,500 feet could cause pilot/ODS to shutdown heater MHVFRD20BT/ MHVFRD30TB / MHVFBF20TB / MHVFBF30TB / MODEL MHVFRD20T LP MHVFRD30T LP MHVFBF20T LP MHVFBF30T LP BTU (Available) 18,000 30,000 20,000 30,000 Type of Gas LP-Gas Only LP-Gas Only LP-Gas Only LP-Gas Only...
  • Page 4: Ignition System Battery Installation

    Product Features FRESH AIR FOR COMBUSTION AND VENTILATION Ignitor Button WARNING: This heater shall not be installed in a Fan Blower Control Knob Switch room or space unless the required volume of indoor (located on back combustion air is provided by the method described in of heater) the National Fuel Gas Code, ANSI Z223.1/NFPA 54.
  • Page 5: Determining The Type Of Heater Location Space

    *Adjoining rooms are communication only if there Air From Inside Building (Figure 2). are door less passageways or ventilation grills B. Vent room directly to the outdoors. See Ventilation between them. Air From Outdoors (Figure 3). DETERMINING THE TYPE OF HEATER C.
  • Page 6: Installation

    *A CSA/AGA certified equipment shutoff valve with WARNING: Rework worksheet, adding the space 1/8” NPT tap is an acceptable alternative to test gauge of the adjoining unconfined space. The combined connection. Purchase a CSA/AGA certified equipment space must have enough fresh air to supply all ap- shutoff valve from your dealer.
  • Page 7: Fastening Heater To Wall

    Attaching to Wall Stud: This way is the best providing the strongest mounting in wood frame houses. Attaching to Wall Anchor: 10”(254cm) from sides 36” (915cm) This way allows you to attach mounting bracket to hol- min. from ceiling low walls (wall areas between studs) or to solid walls (concrete or masonry).
  • Page 8: Floor Mounting Away From Wall

    2. Fold wall anchor as shown in figure 8 below. If installing bottom mounting screw into wall stud, drill holes at marked locations using 9/64” drill bit. 5. Re-place heater onto mounting bracket. 6. Place spacers between bottom mounting holes and wall anchor or drilled hole.
  • Page 9 CAUTION: Never connect heater directly to the Propane IMPORTANT: Hold pressure regulator with wrench supply. This heater requires an external regulator (not when connecting it to gas piping and/or fittings. supplied). Install the external regulator between the CHECKING GAS CONNECTIONS heater and Propane/LP supply.
  • Page 10: Operating Your Heater

    Pressure Testing Heater Gas Connections: 1. The appliance and its appliance main gas valve must be disconnected from the gas supply piping system during any pressure testing of ½ that system at test pressures in excess of psi (3.5 kPa). The appliance must be isolated from the gas supply piping system by closing its equipment shutoff valve during any pressure testing of the gas supply piping system at test...
  • Page 11 THERMOSTAT CONTROL OPERATION D. Do not use this appliance if any part has been underwater. Immediately call a qualified service FOR IR20LPT / IR30LPT: The thermostatic control technician to inspect the appliance and to used simply turns on and off the burner. replace any part of the control system which FOR BF20LPT / BF30LPT: The thermostatic control has been underwater.
  • Page 12: Cleaning And Maintenance

    CLEANING AND MAINTENANCE CLEANING HEATER CABINET WARNING: Turn off heater and let cool before Air passageways servicing. • Use a vacuum cleaner or pressurized air to CAUTION: You must keep control areas, burner clean and circulation air passageways of heater clean. Exterior Inspect these areas of heater before use.
  • Page 13: Troubleshooting

    TROUBLESHOOTING NOTE: All troubleshooting items are listed in order of operation and likely occurrence. WARNING: Only a qualified service person should service and repair heater. CAUTION: Never use a wire needle, or similar object to clean ODS/pilot. This can damage ODS/pilot unit. Make sure grille guard is in place before running heater.
  • Page 14 Burner does not light after ODS/pilot is lit 1. Burner orifice is clogged 1. Clean burner orifice (see Cleaning and 2. Burner orifice diameter to small Maintenance on page 11), or replace 3. Inlet gas pressure is too low burner orifice 2.
  • Page 15 Installation Instructions and Owner’s Manual Unvented LP-Gas Vent Free Room Heaters...
  • Page 16: Exploded-View Parts Drawing

    PARTS LIST AND DIAGRAM MODEL: MHVFBF20LPBT / MHVFBF20LPT ITEM PART DESCRIPTION ITEM PART DESCRIPTION 80094 Wire Guard 80081 Thermostat Valve 80096 Front Panel Thermostat Mounting Bracket 80086 Reflector Back Heat Shield 80088 Front Heat Shield 80059 Floor Mount Feet 80093 Glass 80097 Back Panel...
  • Page 17: Parts List

    PARTS LIST AND DIAGRAM MODEL: MHVFBF30LPBT / MHVFBF30LPT ITEM PART DESCRIPTION ITEM PART DESCRIPTION 80041 Wire Guard 80081 Thermostat Valve 80065 Front Panel Thermostat Mounting Bracket 80025 Reflector Back Heat Shield 80029 Heat Shield 80058 Floor Mount Feet 80039 Glass 80066 Back Panel 80035...
  • Page 18 PARTS LIST AND DIAGRAM MODEL: MHVFRD20LPBT / MHVFRD20LPT ITEM PART DESCRIPTION ITEM PART DESCRIPTION 80094 Wire Guard Thermostat Mounting Bracket 80096 Front Panel Back Heat Shield 80086 Reflector 80058 Floor Mounting Feet 80057 ODS Assembly w/ Thermocouple (NG) 80097 Back Panel...
  • Page 19 PARTS LIST AND DIAGRAM MODEL: MHVFRD30LPBT / MHVFRD30LPT ITEM PART DESCRIPTION ITEM PART DESCRIPTION 80041 Wire Guard Thermostat Mounting Bracket 80065 Front Panel Back Heat Shield 80023 Reflector 80058 Floor Mounting Feet 80057 ODS Assembly w/ Thermocouple (NG) 80066 Back Panel ODS Bottom Bracket 80037 Wall Mounting Bracket...
  • Page 20: Warranty

    Mr. Heater, Inc. warrants its heaters and accessories to be free from defects in material and workmanship for a period of 1 year from date of purchase. Mr. Heater, Inc. will repair or replace this product free of charge if it has been proven to be defective within the 1-year period, and is returned at customer expense with proof of purchase to Mr.

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