Heat Controller MGD Series Quick start guide

Heat Controller, Inc. Jackson, MI 49203 MGD Technical Manual 1
TECHNICAL GUIDE
SEALED COMBUSTION
DOWNFLOW GAS FURNACE
MGD SERIES
SPECIFICATIONS
These downflow furnaces are specially designed
for installation in manufactured housing. Three
heat capacity and two blower choices handle
heating and cooling (to 5T) in any climate. All
blowers are multi-speed to fine tune airflow to
the home ensuring quiet operation, high
operating efficiency and comfort.
FEATURES
• ELECTRONIC IGNITION
• SEALED COMBUSTION VENTING
• ALUMINIZED STEEL HEAT EXCHANGER
• ZERO CLEARANCE TO CONSTRUCTION
• BUILT-IN ‘A’ COIL CABINET - 25 ½ ” HIGH
• UNIVERSAL WASHABLE OR DISPOSABLE
AIR FILTERS
• CONTOURED WHITE DOOR PANELS
“C” CABINET
80 AFUE- AUTOMATIC HOT SURFACE IGNITION
Model No. MGD60-E3A MGD75-E3A MGD90-E3A MGD60-E5A MGD75-E5A MGD90-E5A
Input, BTUH 60,000 75,000 90,000 60,000 75,000 90,000
Output, BTUH 48,000 60,000 72,000 48,000 60,000 72,000
AFUE, % 80.0 81.0 80.0 80.0 81.0 80.0
With A-Coil Cabinet YES YES YES YES YES YES
Ignition Type Auto-Elect Auto-Elect Auto-Elect Auto-Elect Auto-Elect Auto-Elect
Air Temperature Rise, Range-F 40-70 45-75 50-80 40-70 45-75 50-80
Blower 10 X 8, 1/3 HP, 3 SPD 10 X 8, 3/4 HP, 4 SPD
Designed Max Outlet Air Temp-F 165 °
Max. External SP (Duct),In. W.C. .30 Heating
Factory Equipped Fuel Natural Gas (Factory Equipped) - LP Orifice Furnished For Conversion
High Altitude For elevations above 2,000 feet, reduce input 4% for each 1,000 ft. elevation above sea level
Furnace Flue Pipe Must Use RJS Roof Jack for Sloped Roof or RJF Roof Jack for Flat Roof (page 2)
Gas Connection 1/2" FPT
Electric Service 115 VAC, 60 HZ, 1 PH
Fuse or Circuit Breaker 15 Amp
Thermostat Circuit 24VAC, 60Hz, 40VA
Filters 16"x40"x1" Washable

MGD Series Gas Furnace Technical Guide
Heat Controller, Inc. Jackson, MI 49203 MGD Technical Manual 2
SEALED COMBUSTION ROOF JACK-(REQUIRED)
CLEARANCES
MGD75 E3 A
Revision
Dash
Gas
Downflow Electronic Ignition
60,75,90 MBTUH INPUT
Manufactured Home
3 = 1/3 HP, 3 SPD BLOWER
5 = 3/4 HP, 4 SPD BLOWER
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 thereturn 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”.
O
PRODUCT CODE

MGD Series Gas Furnace Technical Guide
Heat Controller, Inc. Jackson, MI 49203 MGD Technical Manual 3
BLOWER PREFORMANCE
COMBUSTIBLE FLOOR BASE AND DUCT CONNECTOR-(REQUIRED)
87FB0005 FLOOR BASE,
86AA001( ) – DUCT CONNECTOR

MGD Series Gas Furnace Technical Guide
Heat Controller, Inc. Jackson, MI 49203 MGD Technical Manual 4
ACCESSORIES
PART NO. DESCRIPTION NOTES
90-RJF1729-AL Body, Roof Jack, Gas-FLAT 17” – 29” + Furnace Height
90-RJF2551-AL Body, Roof Jack, Gas-FLAT 25” – 51” + Furnace Height
90-RJS1729-AL Body, Roof Jack, Gas-SLOPE 3/12 17” – 29” + Furnace Height
90-RJS2551-AL Body, Roof Jack, Gas-SLOPE 3/12 25” – 51” + Furnace Height
90-RJS3868-AL Body, Roof Jack, Gas-SLOPE 3/12 38” – 68” + Furnace Height
90-RJS6399-AL Body, Roof Jack, Gas-SLOPE 3/12 (2 Pcs.) 63” – 99” + Furnace Height
90-RJCRWN-AL Crown, Roof Jack, Gas Use w/ Gas Roof Jack Body
90-TRN-RNG Ceiling Trim Ring, Roof Jack Trim out to RJ - Pipe
90-OUTXT16-AL Roof Jack Outdoor Extension - Gas 16" Extend inside pipes/crown - 16 in.
90-INXST10-AL Roof Jack Indoor Extension - Gas 10" Extend inside pipes/crown - 10 in.
90-RJS56 5-6/12 Slope, Roof Saddle Adapter Add to RJS 3/12 Roof Jack
90-DCU0-01 86AA0013 Duct Conn + 87FB0005 Flr Base Floor to Duct 1 in. - 4 in.
90-DCU0-02 86AA0014 Duct Conn + 87FB0005 Flr Base Floor to Duct 6 in. - 8 in. STD
90-DCU0-03 86AA0015 Duct Conn + 87FB0005 Flr Base Floor to Duct 8 in. - 12 in.
87-1008-3/12A1 A/C Blower, 3 Speed - 1/3 HP 2 – 3.5 Ton A/C
87-1008-4/16A1 A/C Blower, 3 Speed - 3/4 HP 3 - 5 Ton A/C
WIRING DIAGRAM