Monessen Hearth Magnum Unvented Vent-Free Fireboxes MCUF36D Installation And Operating Instructions Manual Download Page 2

Page: 2 / 20

26D4720

CONTENTS

Important Safety Information ................................. 3

Product Features ......................................................5

Before You Start .....................................................5

General Installation Information .............................6

Firebox

Dimensions

...............................................6

Minimum Hearth Dimensions .................................7

Location of Firebox ..................................................7

Clearances and Height Requirements ....................8

Fireplace Framing...................................................10

Gas Line Installation ..............................................12

Canopy Installation ................................................13

Optional Equipment ...............................................14

Forced

Air

Kit

.......................................................14

Brass or Chrome Trim ..........................................14
Optional Wide Canopy .........................................14

Illustrated Parts Breakdown ..................................15

Using Optional Outside Air Kit ..............................16

Warranty ..................................................Back Cover

Summary of Contents for Magnum Unvented Vent-Free Fireboxes MCUF36D

Page 1: ...36D and MCUF42D SERIES MAGNUM UNVENTED VENT FREE FIREBOXES INSTALLATION AND OPERATING INSTRUCTIONS Carefully review the instructions supplied with the decorative type unvented room heater for the mini mum fireplace size requirement DO NOT INSTALL AN APPLIANCE IN THIS FIREBOX UNLESS THIS FIREBOX MEETS THE MINIMUM DIMENSIONS REQUIRED FOR THE INSTALLATION WARNINGS If the information in this manual is...

Page 2: ...nsions 6 Minimum Hearth Dimensions 7 Location of Firebox 7 Clearances and Height Requirements 8 Fireplace Framing 10 Gas Line Installation 12 Canopy Installation 13 Optional Equipment 14 Forced Air Kit 14 Brass or Chrome Trim 14 Optional Wide Canopy 14 Illustrated Parts Breakdown 15 Using Optional Outside Air Kit 16 Warranty Back Cover ...

Page 3: ...MPORTANT Read these instructions carefully before installing or trying to operate a vent free gas heater in this firebox IMPORTANT SAFETY INFORMATION 1 Due to high temperatures the appliance should be located out of traffic and away from furniture and draperies 2 Children and adults should be alerted to the hazard of high surface temperature and should stay away to avoid burns or clothing ignition...

Page 4: ...e reduced 4 percent for each 1 000 feet above sea level Refer to the National Fuel Gas Code 21 The appliance and its appliance main gas valve must be disconnected from the gas supply piping system during any pressure testing of that system at test pressures in excess of 1 2 psig 3 5 kPa 22 The appliance must be isolated from the gas supply piping system by closing its equipment shutoff valve durin...

Page 5: ...ews for canopy 2 Canopy 3 Installation and Operating Instructions WHAT YOU WILL NEED FOR INSTALLATION TOOLS BUILDING SUPPLIES Phillips screwdriver Square Framing materials Hammer Piping complying with local codes Wall finishing materials Saw and or sabersaw Tee joint Caulking material noncombustible Level Pipe wrench Fireplace surround materials noncombustible Measuring tape Pliers Electric drill ...

Page 6: ...nto prepared framing 2 Field wire main power supply to models with fan kit Electrical connections should only be performed by an experi enced licensed certified tradesman 3 Plumb gas line Gas connections should only be performed by an experienced licensed certified tradesman 4 Install vent free gas log heater per the instructions provided with the vent free gas log heater 5 Complete finish wall ma...

Page 7: ...quate ventilation and combustion air DO NOT INSTALL THIS FIREBOX IN A BEDROOM OR BATHROOM Location should be out of high traffic or windy or drafty areas DO NOT INSTALL WHERE CURTAINS FURNITURE CLOTHING OR OTHER FLAMMABLE OBJECTS ARE LESS THAN 42 FROM FRONT OF HEATER Never obstruct the front opening of the vent free firebox or restrict the flow of combustion and ventilation air Minimize modificati...

Page 8: ...nst a combustible back wall Figure 4 Clearance and Height Requirements 4 Floor clearance This inner chamber firebox floor must be installed at least 6 above any combustible flooring mate rial such as carpeting or asphalt tile which is closer than 14 to the base of the firebox See Figure 5 Or The inner chamber firebox floor may be installed nearer to the floor if a minimum of 14 of noncombustible m...

Page 9: ...stalled If a combustible mantel is installed it must meet the clearance requirements as shown in Figure 7A However if lower mantel height is desired see page 15 and Figure 7B Figure 7A Mantel Clearances Figure 7B Mantel Clearances for Wide Profile Canopy Only FIREPLACE WALL COMBUSTIBLE MATERIAL AREA HOOD TOP VIEW Figure 8 Mantel Clearances ...

Page 10: ...ppropriate height When the firebox is installed directly on carpeting tile or other combustible material other than wood flooring the firebox shall be installed on a metal or wood panel extending the full width and depth of the enclosure MCUF36D MCUF42D A 411 4 471 4 B 373 4 373 4 C 32 38 D 163 8 193 8 E 687 8 747 8 F 341 2 371 2 G 173 4 173 4 H 483 4 53 Figure 9 Corner Installation Figure 11 Stud...

Page 11: ... side framing members using 8d nails or other suitable fasteners See Figure 14 5 The canopy must be installed for safe operation of the heater See page 13 for canopy installation details When finishing a custom cabinet mantel or other built in enclosure the opening size to accommodate the fireplace with trim installed is as follows Figure 13 Custom Cabinet Figure 14 Location of Nailing Flanges Nai...

Page 12: ... through trap to the heater controls and burners Failure to do so could prevent the heater from operating reliably Consult applicable codes An external regulator must be used on all propane L P G heaters in addition to the regulator fitted to the heater to reduce the supply tank pressure to 13 w c maximum Any copper tubing used to supply propane L P G from the tank must be internally tinned Note W...

Page 13: ...the side frames See Figure 15 2 Align the canopy with the holes in the top frame 3 Replace the screws previously removed 4 Tighten side screws Make sure the canopy is level and secure The firebox canopy must not be modified or replaced with a canopy that may be provided with the unvented decorative room heater WARNING Close fireplace screen panel before operating a decorative type unvented room he...

Page 14: ...ING Any of the original wire as supplied with the fireplace must be replaced Contact dealer for proper replacement wiring harness see parts list for part number 120 volts 60Hz 1 amps Electrical power cord plug can be routed to exit the MCUF36D MCUF42D on either the left side or the right side Remove cord protector from side of unit route power cord through hole opposite side Reinstall cord protect...

Page 15: ... Panel 2 26D4562 26D45622 3 Screen Rod 2 26D0132K 26D0133K ACCESSORIES IN KITS 1 Standard Brass Canopy 1 BRCU36 BRCU42 1 Wide Brass Canopy 1 BRC36 BRC42 4 Blower w Rheostat 1 BLOTMC BLOTMC 5 Brass Trim Curved Design 1 BRTKM36 BRTKM42 5 Pewter Trim Curved Design 1 PWTKM36 PWTKM42 5 Black Trim Curved Design 1 BLTKM36 BLTKM42 6 Outside Air Kit 1 AK 4 AK 4 ...

Page 16: ...rage space 5 Locate air supply inlet at least 3 away from any appliance vent terminal 6 Avoid extremely long runs and numerous turns in the duct leading from the fireplace to the combustion air assembly These conditions increase the resistance to the free flow of air through the duct See Figures 17 through 20 for methods of installing the outside air for combustion assemblies Figure 17 Basement In...

Page 17: ...g collar with duct clamp or screws See Figure 22 DO NOT remove the cover if the outside air will not be connected WARNING Figure 21 Attaching Outside Air Starting Collar and Insulation Ring to Left Side of Fireplace Figure 22 Attaching Outside Duct to Starting Collar Insulation Ring AK 4 Starting Collar Sheet Meal Screws Left Side of Fireplace Shorter End of Air Starting Collar Air Starting Collar...

Page 18: ...ll Note If the wall covering is brick or stone use appropriate masonry fasteners If necessary splice the duct Use a model 403 duct connector to splice duct sections INSTALLING MODEL 403 DUCT CONNECTOR 1 Push insulation back approximately 2 from the end of each duct 2 Slip each duct over duct connector until an equal length of connector extends into each duct 3 Place duct clamp over the end of each...

Page 19: ...26D4720 19 NOTES ...

Page 20: ...in accordance with the installation instructions The Limited Lifetime Warranty will also be void if the appliance is not operated and maintained according to the operating instructions supplied with the appliance and does not extend to 1 firebox burner assembly damage by accident neglect misuse abuse alteration negligence of others including the installation thereof by unqualified installers 2 the...

Search results

Summary of Contents for Magnum Unvented Vent-Free Fireboxes MCUF36D

Reviews:

Related manuals for Magnum Unvented Vent-Free Fireboxes MCUF36D

Brands by name

Popular brands

Monessen Hearth Magnum Unvented Vent-Free Fireboxes MCUF36D, Installation And Operating Instructions Manual

Search results

Summary of Contents for Magnum Unvented Vent-Free Fireboxes MCUF36D

Reviews:

Related manuals for Magnum Unvented Vent-Free Fireboxes MCUF36D

Brands by name

Popular brands