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11

Installation Instructions and Owner’s Manual

Unvented Liquid Propane Fired Room Heater

PILOT FLAME PATTERN

Figure 17 show a correct pilot flame pattern and also shows 
an incorrect pilot flame pattern. The incorrect pilot flame 
pattern is not touching thermocouple. This will cause the 
thermocouple to cool. When the thermocouple cools, the 
heater will shut down. If pilot flame pattern is incorrect, as 
shown in Figure 17:

• 

Turn heater off (see To Turn OFF Gas to Appliance, 

page 10)

 

• 

See Troubleshooting, pages 12-13.

Figure 16

Correct pilot position.

Incorrect pilot position.

CLEANING AND MAINTENANCE

WARNING:

 Turn off heater and let cool before 

servicing. 

For maintenance of the inside cabinet or to access the 
burner and pilot assembly for cleaning or service. Remove 

the four screws(two located on each side) that secure 
the front shell to the unit.(Figure 6) Gently lift up on the 

front shell to disengage the hooks and pull forward to 
remove it. You will now be able to access all of the internal 
components of the appliance.

CAUTION:

 You must keep control areas, burner and 

circulation air passageways of heater clean. Inspect these 
areas of heater before use. Have the heater inspected 
yearly by a qualified service person. Heater may need 
more frequent cleaning due to excess lent from carpeting, 
bedding material, pet hair, etc. 
Make sure grille guard is in place before running heater. If 
screen or grille guard is removed for servicing it must be 
replaced prior to operating the heater. 

WARNING:

 Failure to keep the primary air opening(s) 

of the burner(s) clean may result in sooting and 

property damage. 

CLEANING ODS/PILOT AND BURNER

• 

Use as vacuum cleaner, pressurized air or small soft 
bristled brush to clean.

CLEANING BURNER PILOT AIR HOLE INLET

We recommend that you clean the unit every 2,500 hours 

of operation or every three months. We also recommend 
that you keep the burner tube and pilot assembly clean and 
free of dust and dirt. To clean these parts we recommend 
using compressed air no greater than 30 psig.
This can be done by using a vacuum cleaner in the blow 

position or using compressed air in a can. If using canned 

air please follow the directions on the can. If you don’t 

follow directions on the can you could damage the burner 
or pilot assembly. In addition, the directions below should 
also be followed.

1.  Shut off the unit, including the pilot. Allow the 

unit to cool for at least thirty minutes.

2.  Inspect burner and pilot for dust and dirt.

3.  Blow air through the port/slots and holes in the 

burner.

A yellow tip on the pilot flame indicates dust and dirt in the 
pilot assembly. To clean the pilot assembly find the small 
pilot air inlet hole about two inches from where the pilot 

flame comes out of the pilot assembly (see figure 18). With 

the unit off, lightly blow air through the air inlet hole. You 
may blow through a drinking straw if compressed air is not 
available.

CLEANING HEATER CABINET

Air passageways

• 

Use a vacuum cleaner or pressurized air to clean

Exterior

• 

Use a soft cloth dampened with a mild soap and 
water mixture. Wipe the cabinet to remove dust.
ion air and create odors and possible discoloration 
of walls and ceilings.

Pilot Air Inlet Hole

Pilot Assembly

Figure 17

Содержание MHVFBF10LP

Страница 1: ... 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 ...

Страница 2: ... you to chemicals including benzene which is known to the state of California to cause cancer and cause birth defects or other reproductive harm for more information go to www P65Warnings ca gov Due to high temperatures heater should be kept out of traffic and away from furniture and draperies Do not place clothing or other flammable material on or near the appliance Children and adults should be ...

Страница 3: ...ght until you provide fresh outside air If heater keeps shutting off it requires servicing 5 Turn off and let cool before servicing Only a qualified service person should service and repair heater 6 Do not run heater Where flammable liquids or vapors are used or stored During dusty conditions 7 Before using furniture polish wax carpet cleaner or similar products turn heater off If heated the vapor...

Страница 4: ...onal Fuel Gas Code or applicable local codes 3 Add the Btu hr of all the fuel burning appliances in the SAFETY DEVICE This heater has a pilot with an Oxygen Depletion Sensor ODS safety shut off system The ODS pilot shuts off the heater if there is not enough fresh air IGNITION SYSTEM PIEZO The heater is equipped with a piezo manual ignitor This system requires no matches batteries or other source ...

Страница 5: ...s Code NFPA 54 ANSI Z223 1 Section 5 3 Air for Combustion and Ventilation for required size of ventilation grills or ducts WARNING Rework worksheet adding the space of the adjoining unconfined space The combined space must have enough fresh air to supply all appliance in both spaces Ventilation from Outdoors If necessary provide extra fresh air by using ventilation grills or ducts Connect these it...

Страница 6: ...or convenience and efficiency install the heater Where there is easy access for operation inspection and service In the coldest part of the room CAUTION If you install the heater in a home garage Heater pilot and burner must be at least 18 inches above floor Locate heater where moving vehicle will not hit it CAUTION This heater creates warm air currents These currents move heat to wall surfaces ne...

Страница 7: ...bracket onto wall Line up holes on each end of bracket with hole drilled in wall 3 Insert mounting screws through bracket and into wall studs 4 Tighten screws until mounting bracket is firmly fastened to wall studs Attaching to Wall using Anchor For attaching mounting bracket to hollow walls wall areas between studs or solid walls concrete or masonry Note Wall anchors mounting screws and spacer ar...

Страница 8: ...ake gas connection CAUTION Never connect heater directly to the Propane supply This heater requires an external regulator not supplied Install the external regulator between the heater and Propane LP supply The installer must supply an external regulator The external regulator will reduce the incoming gas pressure to between 11 and 14 inches of water If you do not reduce incoming gas pressure heat...

Страница 9: ... relieve pressure in supply piping system 7 Reconnect heater and equipment shutoff valve to gas supply 8 Reconnected fittings must be checked for leaks in next section Low Pressure Test Pressure Equal To or Less Than psig 3 5 kPa 1 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 t...

Страница 10: ...ontrol know slightly and turn counterclockwise to PILOT IGN and depress for five 5 seconds Note The first time that the heater is operated after connecting the gas supply the control knob should be depressed for about 30 seconds This will allow air to bleed from the gas system 6 Push in control knob and rotate control knob back to OFF position then rotate counterclockwise to PILOT IGN position Thi...

Страница 11: ...e to keep the primary air opening s of the burner s clean may result in sooting and property damage CLEANING ODS PILOT AND BURNER Use as vacuum cleaner pressurized air or small soft bristled brush to clean CLEANING BURNER PILOT AIR HOLE INLET We recommend that you clean the unit every 2 500 hours of operation or every three months We also recommend that you keep the burner tube and pilot assembly ...

Страница 12: ...t shutoff valve not fully open Fully open equipment shutoff valve Thermocouple connection loose at control valve Hand tighten thermocouple nut until snug and then tighten 1 4 turn more Pilot flame not touching thermocouple which allows thermocouple to cool causing pilot flame to go out This problem could be caused by one or both of the following a Low gas Pressure b Dirty or Partially clogged ODS ...

Страница 13: ...p using odor causing products while heater is running Gas leak See WARNING statement at top of page 12 Locate and correct all leaks see Checking Gas Connections page 9 Heater shuts off in use ODS operates Not enough fresh air is available Open window and or door for ventilation Low line pressure Contact local gas company ODS pilot is partially clogged Clean ODS pilot see Cleaning and Maintenance p...

Страница 14: ...tor 1 10 80055 Regulator Mounting Bracket 1 ITEM P N PART DESCRIPTION QTY 1 1 80058 Floor Mounting Feet Beige 1 80214 Floor Mounting Feet White 1 12 NA Regulator Connection 1 13 80036 Wall Mounting Bracket 1 14 80052 Back Panel Beige 1 80177 Back Panel White 1 15 80005 Valve Bracket 1 16 80006 Knob 1 17 80080 LP Valve 1 18 80034 Glass Bracket 1 70342 Hardware Kit not shown 1 WARNING Failure to pos...

Страница 15: ...ting Bracket 1 8 80058 Floor Mounting Feet Beige 1 ITEM P N PART DESCRIPTION QTY 80214 Floor Mounting Feet White 1 9 NA Regulator Connection 1 10 80036 Wall Mounting Bracket 1 1 1 80052 Back Panel Beige 1 80177 Back Panel White 1 12 80005 Valve Bracket 1 13 80006 Knob 1 14 80080 LP Valve 1 70342 Hardware Kit not shown 1 80009 01 Orifice not shown 1 WARNING Failure to position the parts in accordan...

Страница 16: ...D BY A QUALIFIED SERVICE AGENCY REPLACEMENT PARTS ORDERING INFORMATION PURCHASING Accessories may be purchased at any Mr Heater local dealer or direct from the factory FOR INFORMATION REGARDING SERVICE Please call Toll Free 800 251 0001 www mrheater com Our office hours are 8 00 AM 5 00 PM EST Monday through Friday Please include the model number date of purchase serial number and description of p...

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