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MR10NT

INFRARED VENT-FREE NATURAL GAS

HEATER

OWNER’S OPERATION AND INSTALLATION MANUAL

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.

WARNING: Improper instal-
lation, 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 in-
stalled. Provisions for ad-
equate combustion and
ventilation air must be pro-
vided. Refer to 

Air For Com-

bustion and Ventilation on
page 4 of this manual.

This appliance may be installed in an aftermarket*, permanently located, manufac-
tured (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 other gases.

*Aftermarket: Completion of sale, not for purpose of resale, from the manufacturer

Summary of Contents for Medallion MR10NT

Page 1: ...qualified installer service agency or the gas supplier WARNING Improper instal lation adjustment alteration service or maintenance can causeinjuryorpropertydam age Refer to this manual for correct in...

Page 2: ...urns fire explosion and car bon monoxide poisoning DANGER Carbon monoxide poisoning may lead to death 5 This heater needs fresh outside air ven tilation to run properly This heater has an Oxygen Deple...

Page 3: ...er for shipment 3 Check heater for any shipping damage If heater is damaged promptly inform dealer where you bought heater PRODUCT FEATURES SAFETY PILOT This heater has a pilot with an Oxygen Depletio...

Page 4: ...lume is less than 50 cubic feet per 1 000 Btu per hour 4 8 m3 per kw of the aggre gate input rating of all appliances installed in that space and an unconfined space as a space whose volume is not les...

Page 5: ...al ______________Btu Hr Do not include direct vent gas appliances Direct vent draws combustion air from the outdoors and vents to the outdoors 4 Compare the maximum Btu Hr the space can support with t...

Page 6: ...of the adjoiningunconfinedspace The combined spaces must have enough fresh air to supply all appliances in both spaces Ventilation Air From Outdoors Provide extra fresh air by using ventilation grills...

Page 7: ...fromfloor ceiling andjoin ing wall CAUTION If you install the heater in a home garage heaterpilotandburnermustbe at least 18 inches above floor locate heater where moving vehicle will not hit it IMPOR...

Page 8: ...l Stud Method For attaching mounting screw to wall stud 1 Drill hole at marked location using 9 64 drill bit 2 Insert mounting screw into wall stud 3 Tighten screw until 1 16 space thick ness of penny...

Page 9: ...wn in Figure 12 Locate sediment trap where it is within reach for cleaning Locate sedi ment trap where trapped matter is not likely to freeze A sediment trap traps moisture and contaminants This keeps...

Page 10: ...onnected fittings for leaks Test Pressures Equal To or Less Than 1 2 PSIG 3 5 kPa 1 Close equipment shutoff valve see Fig ure 13 2 Pressurize supply piping system by ei ther using compressed air or op...

Page 11: ...rops below the set temperature Selecting a higher setting will cause the heater to run longer producing greater heat output At lower settings the heater will run less Note The thermostat sensing bulb...

Page 12: ...INTENANCE ODS PILOT AND BURNER ORIFICE Use a vacuum cleaner pressurized air or small soft bristled brush to clean CLEANING BURNER PILOT AIR INLET HOLE We recommend that you clean the unit ev ery 2 500...

Page 13: ...base panel 4 Replace ignitor cable 5 Replace ignitor 6 Replace piezo ignitor 7 Replace ignitor 1 Turn on gas supply or open equipment shutoff valve 2 Turn control knob to PILOT position 3 Press in con...

Page 14: ...s see Cleaning and Maintenance page 12 or replace burner orifice s 2 Contact local natural gas company 3 Replace burner 4 Replace gas regulator 1 Plaque damaged 2 Inlet gas pressure is too low 3 Contr...

Page 15: ...nections page 10 1 Open window and or door for ventilation 2 Contact local natural gas company 3 Clean ODS pilot see Cleaning and Maintenance page 12 1 Locate and correct all leaks see Checking Gas Co...

Page 16: ...16 105935 VENT FREE NATURAL GAS HEATER MR10NT 12 A B 16 7 8 4 6 5 3 2 1 11 14 13 19 18 6 17 15 16 10 9 7 1 ODS PILOT 7 2 ILLUSTRATED PARTS LIST MR10NT...

Page 17: ...823 37 Screw Hex 8 x 1 4 10 7 503329 ODS Pilot Assembly 1 7 1 098514 01 Thermocouple 1 7 2 098594 01 Ignitor Electrode 1 8 099884 03 Burner Assembly 1 9 099056 24 Injector 1 10 104087 01 Tubing Burner...

Page 18: ...s call Cans Unlimited Incorporated s Technical Ser vice Department at 1 800 922 7407 for in formation When contacting your dealer or Cans Un limited Incorporated have ready your name your address mod...

Page 19: ...___________________ _______________________________________________________________________________________________ ____________________________________________________________________________________...

Page 20: ...he 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 as a result of misuse accidents lack of proper mai...

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