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MGD Series Gas Furnace                                                                                        Installation Instructions 

Heat Controller, Inc. Jackson, MI 49203                                              MGD Installation Instructions     1 

                                                                                       

   

INSTALLATION INSTRUCTIONS 

SEALED COMBUSTION 
DOWNFLOW                                                                           MGD SERIES                                    
GAS FURNACE 

                                                                                   

SIZES 60, 75, 90

 

 

FOR INSTALLATION IN: 

MANUFACTURED (MOBILE)                                       

CAUTION: READ ALL SAFETY GUIDES

 

 HOMES, RECREATIONAL VEHICLES, PARK MODELS,                                         

BEFORE INSTALLING THIS FURNACE

 

MODULAR HOMES AND BUILDINGS 

                                                                                                          

    

                                        

 

 
 

GENERAL INFORMATION 
 

These down flow sealed combustion furnaces install in 
Manufactured Homes, Recreational Vehicles or Modular 
Construction. The furnaces conform to Part 3280 (a) (2) of 
HUD Manufactured Homes Construction and Safety 
Standards. They must be installed only with listed RJ-Roof 
Jack, Sealed Combustion venting system. 
 
NOTE: These instructions are intended to assist qualified 
individuals experienced in the installation of heating 
equipment.          
Some state and local codes require installation personnel to be 
licensed. Read all instructions before starting the installation. 
 
 
 
 
 

SAVE THIS MANUAL 

 
 

 
 
 
 
 
 
NOTICE – 

Furnace set-up and any adjustment needed is 

responsibility of the installer/ retailer/ contractor and is not 
covered by the furnace manufacturers warranty. 

 
 

      CHECKLIST: FURNACE START-UP 
 

1. 

Has furnace roof jack crown been correctly installed? 

2. 

Has the furnace gas valve and burner orifice been 
cleaned? 

3. 

Is the gas line outlet pressure set for the fuel used? 

4. 

If the home uses a crossover air connector duct, is it 

        installed per homebuilders installation instructions? 
5. 

Has furnace been operated through complete heating 
cycle?       

 
 

 

WARNING-RISK OF FIRE OR ELECTRICAL SHOCK 

Only qualified service personnel shall be used to install 
and provide maintenance of this furnace. 

 

Summary of Contents for MGD60-E3A

Page 1: ...ructions are intended to assist qualified individuals experienced in the installation of heating equipment Some state and local codes require installation personnel to be licensed Read all instruction...

Page 2: ...Amp Thermostat Circuit 24VAC 60Hz 40VA Filters 1 16 x40 x1 Washable PRODUCT CODE PART NO DESCRIPTION NOTES 90 RJF1729 AL Body Roof Jack Gas FLAT Height 94 1 2 X 106 1 2 90 RJF2551 AL Body Roof Jack Ga...

Page 3: ...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 floo...

Page 4: ...he opening 3 The cross sectional area of the return system when located in the floor or ceiling of the manufactured home leading into the closet is to be not less than that of the opening specified on...

Page 5: ...MGD Series Gas Furnace Installation Instructions Heat Controller Inc Jackson MI 49203 MGD Installation Instructions 5...

Page 6: ...MGD Series Gas Furnace Installation Instructions Heat Controller Inc Jackson MI 49203 MGD Installation Instructions 6...

Page 7: ...MGD Series Gas Furnace Installation Instructions Heat Controller Inc Jackson MI 49203 MGD Installation Instructions 7 SEALED COMBUSTION ROOF JACK REQUIRED...

Page 8: ...he 7 collar 5 Check and make sure the combustion air pipe is fully seated Then drive a 10 sheet metal screw attaching pipe firmly to furnace collar 6 Install optional ceiling trim ring 90 TRM RNG 7 On...

Page 9: ...a strain relief bushing on the left side of the furnace 3 Connect the HOT wire to the black pigtail lead connect the NEUTRAL wire to the WHITE pigtail lead Secure the connections with suitable wire n...

Page 10: ...D TUBING MIN SIZES MODEL TYPE LENGTH PIPE TUBING MGD OF SIZE SIZE GAS FT IN IN OD to 20 3 8 5 8 Natural to 60 1 2 60 to 70 3 4 to 40 3 8 Propane to 70 5 8 to 80 1 2 to 20 5 8 to 50 1 2 Natural to 60 3...

Page 11: ...MGD Series Gas Furnace Installation Instructions Heat Controller Inc Jackson MI 49203 MGD Installation Instructions 11 WIRING DIAGRAM MGD...

Page 12: ...MGD Series Gas Furnace Installation Instructions Heat Controller Inc Jackson MI 49203 MGD Installation Instructions 12 REPLACEMENT PARTS...

Page 13: ...1 Transformer 115V 24V 40VA 12 All R68CA0004 1 Limit Switch Open 140 F Close 110 F 13 All R86GF0054 1 Burner Assembly 14 All R68GF0005 1 Hot Surface Igniter 15 All R76AA0002 2 Filter 16 X 20 X 1 16 A...

Page 14: ...3 MGD Installation Instructions 14 Reference NFPA No 54 ANSI Z 223 1 National Fuel Gas Code Table shows 4 Input Reduction per 1 000 feet elevation For Canadian High Altitude 2 000 4 500 feet reduce ga...

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