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MGD Series Gas Furnace Installation Instructions
Heat Controller, Inc. Jackson, MI 49203 MGD Installation Instructions 3
SAFETY CONSIDERATIONS INSTALLATION STANDARDS
CODE COMPLIANCE
The installer shall become familiar with and follow all local
codes and regulations which govern the installation of this
furnace. Where applicable, local codes may take precedence.
• Federal Manufactured Home Construction and Safety
Standards – HUD Title 24, Part 3280.
• National Fuel Gas Code – ANSI-Z223.1/NFPA-54
• Unit electrical wiring and grounding shall comply with
National Electrical Code – ANSI/NFPA-70
• “Manufactured Housing” – NFPA-501 and Fire Safety Criteria
for Mobile Home Installations – NFPA 501A
• “Recreational Vehicles” – ANSI – 119/NFPA – 501C
HIGH ALTITUDE INSTALLATION
For elevations above 2,000 feet derate furnace input 4% for each
1,000 feet of elevation above sea level. Furnace deration is
accomplished by reducing the burner orifice size. See
DERATING CHART for orifice size and CONVERSION
INSTRUCTIONS, Page 16.
INSTALLATION CLEARANCES
These furnaces are design certified for the following minimum
clearances from combustible materials in alcove or close
instllations.
NOTE: The words “Shall” or “Must” indicate a
requirement, which is essential to satisfactory and safe
furnace performance.
The words “Should” or “May” indicate a recommendation
which may be helpful or enhance performance.
Locate furnace to ensure adequate room for service access to all
vent connections, controls and the heat exchanger. A front
clearance of 18” minimum (24” recommended) shall be
provided by a closet door or spacing away from a facing wall or
partition.
For installation on combustible flooring (except carpeting) using
manufacturers supplied floor base P/N 87FB0005 and duct
Connector Series P/N 86AA001, included in 90-DCU0-01/03
kits.
• ELECTRIC POWER - turn off all electrical
power to furnace before performing any
maintenance or service on unit. Failure to take
this precaution may result in personal injury due
to electrical shock.
• SERVICE - a qualified service technician
should service this unit. Fuel burning appliances
can generate toxic flue products. Modification of
the appliance can cause carbon monoxide in
deadly amounts. To prevent a safety hazard,
maintain this
appliance in a safe operating manner and do not
modify.
• DO NOT modify vent or operate the unit with a
blocked vent or inlet air pipe.
• DO NOT re-drill a burner orifice. If the orifice
size must be changed, use only a new orifice.
• DO NOT use matches, lighters, candles, or
other sources of open flame to check for gas
leaks.
• PROPER maintenance for this unit requires
certain mechanical skills and tools. If you are at
all uncertain, contact your Heating Service Co.
for maintenance and service.
• CONSULT with a service technician for any
problems or questions you may have pertaining
to this appliance.
• ALWAYS inspect the appliance before starting
a new heating season, paying special attention to
vent pipes and fuel lines.
Top ……………………………….6 in.
Sides ……………………………...0 in.
Back ………………………………0 in.
Alcove-front of furnace ………….18 in.
Closet-front of furnace ……………6 in.
Duct ……………………………….0 in.
Vent/Roof Jack ……………………0 in.
* If the return air opening is below the top of the
furnace, clearance to the side or rear shall be 6”.
** See Return Air for clearances less than 6”.