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Installer: Leave this manual with the appliance. Consumer: Retain this manual for future reference.
Plaque Heaters
MHVFR20LPT
HSVFR20LPT
TSVFR20LPT
MHVFR30LPT
HSVFR30LPT
TSVFR30LPT
UNVENTED LP-GAS FIRED ROOM HEATER
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.
INSTALLATION INSTrucTIONS
ANd OwNer'S MANuAL
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.
MR. HEATER, INC., 4560 W. 160
TH
ST., CLEVELAND, OHIO 44135 · 216-916-3000
For model serial numbers,
see page 20.
Blue Flame Heaters
MHVFB20LPT
HSVFB20LPT
TSVFB20LPT
MHVFB30LPT
HSVFB30LPT
TSVFB30LPT
70809
Rev.A 05/10
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Summary of Contents for Enerco HSVFB20LPT
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Page 1: Installation Instructions
Do not allow anyone who has not read these instructions to assemble, light, adjust or operate the heater. ST., CLEVELAND, OHIO 44135 · 216-916-3000 For model serial numbers, see page 20. Blue Flame Heaters MHVFB20LPT HSVFB20LPT TSVFB20LPT MHVFB30LPT HSVFB30LPT TSVFB30LPT 70809 Rev.A 05/10... -
Page 2: Table Of Contents
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. *Aftermarket completion of sale, not for the purpose of resale, from the manufacturer. -
Page 3: Specifications
SPECIFICATIONS IR20LPT BTU (Available) 20,000 Type of Gas LP-Gas Only Ignition Battery ignitor (1-AA) Pressure Regulator Setting 10 Inches of Water Inlet Gas Pressure (Maximum) 14 Inches of Water Inlet Gas Pressure (Minimum) 11 Inches of Water Electrical Rating /Blower 120V, 60Hz , 1 Burners / Orifice nozzles Thermostatic Control... -
Page 4: Thermostatic Control
Product Features Ignitor Button Fan Blower Switch (located on back of heater) Burners Grill Front Panel Figure 1 SAFETY DEVICE This heater has a pilot with an Oxygen Depletion Sen- sor (ODS) safety shut off system. The ODS/pilot shuts off the heater if there is not enough fresh air. IGNITION SYSTEM –... -
Page 5: Determining The Type Of Heater Location Space
5.3 or applicable local codes. 3. Add the Btu/hr of all the fuel-burning appliances in the space such as, Vent–free heater, Gas water heater, Gas furnace, Vented gas heater, Gas fire- place logs, and Other gas appliances* *Do not include direct-vent gas appliances. Direct- vent draws combustion air from the outdoors and vents to the outdoors. -
Page 6: Installation
WARNING: Rework worksheet, adding the space of the adjoining unconfined space. The combined space must have enough fresh air to supply all ap- pliance in both spaces. Ventilation from Outdoors If necessary provide extra fresh air by using ventila- tion grills or ducts. Connect these items directly to the outdoors or spaces open to the outdoors. -
Page 7: Fastening Heater To Wall
6” Min from adjoining walls Left Side Floor 2” min. to top surface of carpet, tile or other combustible material Figure 4 FASTENING HEATER TO WALL Mounting Bracket The mounting bracket in located on the back panel of heater (see figure 5). It has been taped there for ship- ping. -
Page 8: Floor Mounting Away From Wall
1. Drill holes at marked locations using 5/16” drill bit. For solid walls (concrete or masonry), drill at least 1” deep. 2. Fold wall anchor as shown in figure 8 below. Figure 8. 3. Insert wall anchor (wings first) into hole. Tap anchor flush to wall. -
Page 9: Checking Gas Connections
WARNING: This appliance requires a 3/8” NPT (National Pipe Thread) inlet connection to the pressure regulator. Use of floor mounting feet will require you to use a 3/8 NPT street elbow to make gas connection. CAUTION: Never connect heater directly to the Propane supply. -
Page 10: Electrical Wiring Diagram
4. Correct all leaks at once. 5. Depressurize and relieve pressure from supply piping system. Pressure Testing Heater Gas Connections: 1. Make sure that the heater supply piping sys- tem is connected and has been leak tested as described above. 2. -
Page 11: Lighting Instructions
push in or turn by hand, don’t try to repair it call a qualified service technician or gas supplier. Force or attempted repair may result in a fire or explosion. D. Do not use this appliance if any part has been underwater. - Page 12 Note: Your heater may have either pilot assembly. Figure 17 Figure 21 Correct pilot position. Figure 22 Incorrect pilot position. WARNING: Failure to keep the primary air opening(s) of the burner(s) clean may result in soot- ing and property damage. CLEANING ODS/PILOT AND BURNER •...
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Page 14: 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 15 Burner does not light after ODS/pilot is lit Delayed ignition of burner Burner backfiring during operation Burner plaque(s) does not glow [Infrared Only] Slight smoke or odor during initial opera- tion Heater produces a whistling noise when burner is lit White powder residue forming within burner box or on adjacent walls or furni- ture...
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Page 16: Exploded-View Parts Drawing
BF20LPT BF30LPT 27-2 28-2 IR20LPT IR30LPT 16-1 16-2 Unvented LP-Gas Vent Free Room Heaters 22-1 33-1 22-3 22-2 33-1 22-1 22-3 22-2 27-1 28-1 Installation Instructions and Owner’s Manual... -
Page 17: Parts List
For all models, Equipment shutoff valve with 1/8” NPT tap. IR20LPT, IR30LPT, BF20LPT, BF30LPT, BF20LPT, BF30LPT • PARTS LIST This list contains replacement parts used in your heater. When ordering parts, follow the instructions listed under Replacement Parts on page 20 of this manual. ITEM PART NO. - Page 18 ITEM PART NO. IR20LPT BF20LPT – – 70677 – 70677 – 70678 – 70678 – 70701 70701 70597 70597 70590 70590 70680 70680 70679 70679 70689 – 70690 – – – 70691 – 70695 70695 70697 70697 70698 – 70341 70341 70699 –...
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Page 20: Limited Warranty
705550017088 TSVFR20LPT 705550017088 MHVFR30LPT 705650029951 HSVFR30LPT 705650029951 TSVFR30LPT 705650029951 MHVFB20LPT 705250022527 HSVFB20LPT 705250022527 TSVFB20LPT 705250022527 MHVFB30LPT 705350038259 HSVFB30LPT 705350038259 TSVFB30LPT 705350038259 Mr. Heater, INC., 4560 W. 160TH ST., CLEVELAND, OHIO 44135 • 216-916-3000 Mr. Heater is a registered trademarks of Mr. Heater, Inc.
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