Nordyne M1GH 056 Installation Instructions And Owner's Manuals
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Nordyne M1GH 056 Installation Instructions And Owner's Manuals

M1b series, m1g series, m1m series and m1s series downflow, direct vent (sealed combustion) forced air gas and oil furnaces
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Downflow, Direct Vent (Sealed Combustion)
Forced Air Gas and Oil Furnaces
Installation Instructions/Owners Manual
Series M1B, M1G, M1M and M1S
For installation in:
1. Manufactured Homes
2. Recreational Vehicles, Park Models, Manufactured Buildings
3. Modular Homes/Buildings
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 va-
pors 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:
!
Should overheating occur, or the gas supply fail to shut off, shut off the manual gas valve to the
appliance before shutting off the electrical supply.
WARNING:
!
Improper installation, adjustment, alteration, service or maintenance can cause injury or
property damage. Refer to this manual. For assistance or additional information consult a
qualified installer, service agency or the gas supplier.
WARNING:
!
Do not use this appliance if any part has been submerged under water. Immediately call a
qualified service technician to inspect the appliance and to replace any part of the control
system and any gas control that has been submerged underwater.
LEAVE THESE INSTRUCTIONS WITH THE HOMEOWNER.

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Summary of Contents for Nordyne M1GH 056

  • Page 1 Downflow, Direct Vent (Sealed Combustion) Forced Air Gas and Oil Furnaces Installation Instructions/Owners Manual Series M1B, M1G, M1M and M1S For installation in: 1. Manufactured Homes 2. Recreational Vehicles, Park Models, Manufactured Buildings 3. Modular Homes/Buildings 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.

  • Page 2: Table Of Contents

    TABLE OF CONTENTS 1. SPECIFICATIONS ..................................3 2. OWNERS INFORMATION ................................4 3. MANUFACTURER WARRANTY, OWNER RESPONSIBILITY ...................... 4 4. INSTALLATION STANDARDS ............................... 4 5. UNIT LOCATION .................................... 5 6. MINIMUM CLEARANCES ................................5 7. RETURN AIR PROVISIONS ................................5 8.

  • Page 3: Specifications

    Ignitor Comb. Motor A/C Ready Model No MBtu/h MBtu/h Nat. In WC Burner Direct Blower Tons M1GH 056 M1GB 056 M1GC 056 M1GD 056 M1GH 070 2½* M1GB 070 M1GC 070 M1GD 070 M1GH 077 M1GB 077 M1GC 077 M1GD 077...

  • Page 4: Owners Information

    2. Repairing duct work in the home found to be faulty. 3. Correcting wiring problems in the electrical circuit supplying NORDYNE has been involved in the design of products for the the furnace. manufactured home industry since the first manufactured 4.

  • Page 5: Unit Location

    7. RETURN AIR PROVISIONS Furnace may be installed on combustible flooring when using NORDYNE Duct Connectors (see Table 7 and Figures 9-16). U.S.A. home manufacturers shall comply with all of the following conditions to have acceptable return air systems for 6.

  • Page 6: Air Distribution Systems

    6" (152 mm) k. Air conditioning systems may require more duct, Top Clearance register and open louver area to obtain necessary airflow. Use NORDYNE’s certiduct program to determine proper duct size for A/C. Provide removable access panel above 0" Side 8.

  • Page 7: Duct Connector Selection

    901935 - 10”, p/n 903107 - 18”) can be used to increase roof jack height. All connections inside the home must be made below the ceiling. These extensions are available as optional accessories and may be purchased through your NORDYNE distributor. Figure 6. Roof Jack Assemblies Approx. Length ROOF JACK...

  • Page 8: Installation

    IF PITCH IS: FLASHING NO. "X" FACTOR IS: If "X" Use Duct (Floor cavity) is: Connector Model 2" in 12" 901942 2 1/8" (54MM) (51mm/304mm) 7/8" (22mm) 901987 2 1/2" in 12" 901941 2 1/2" (64MM) 2" (51mm) 901988 (64mm/304mm) 4 1/4"...
  • Page 9 CEILING AND ROOF OPENINGS 13-1/2" Figure 14. Mounting Plate ALT. FUEL LINE HOLES 10" FLOOR OPENING 23 -1/4" FUEL LINE HOLE Figure 12. Closet or Alcove 20" 14-1/2" 2-3/4" REAR WALL OF CLOSET OR ALCOVE Figure 15. Duct Connector TABS TABS FLOOR CUT-OUT FOR DUCT CONN.
  • Page 10 INSTALL ROOF JACK Duct Connector Apply caulking compound on underside of roof flashing to form a continuous strip at least 3/8" wide (see Figure 21) around the underside of the perimeter of the flashing. Connect Roof Jack Assembly to the furnace. Insert telescoping Roof Narrow Duct Jack Assembly through the opening cut on the roof.

  • Page 11: Installation Of Transit-Mode Venting System

    Upper Roof Jack Section Secure Roof Jack with appropriate fasteners after connecting to furnace Secure lower roof jack section with no. 10 S.M. screws Optional Slant-Deck Flashing Roof Secure flashing with appropriate Caulk under roof fasteners flashing to prevent water leakage Caulk under roof flashing to prevent Ceiling...

  • Page 12: Fuel Piping

    Thermostat Wires On-Off Switch Furnace UPPER ROOF Control Box JACK (CROWN) Blower Plug SCREWS To Combustion Blower or WEATHER CAP Flame Roll-Out Power Switch Entry FLASHING COMPLETED ASSEMBLY On-Auto OUTER PIPE Switch TO FURNACE (Heating To Gas Valve INNER FLUE Models Only) or Burner PIPE...
  • Page 13 The gas supply to your home will either be Natural Gas or L.P. (bottle gas). Your furnace is factory equipped to operate on Natural Gas. If your gas supply is L.P. (bottle gas), you must contact a qualified serviceman or gas supplier to convert the furnace.

  • Page 14: Flue Gas Sampling

    Fuel Line Hook-Up: One Line System WARNING: The one line system is highly recommended where vertical lift, from bottom of tank to pump, is not more than eight feet. A Failure to keep supply of oil clean by various single line hookup has the advantage of costing less and procedures described above may cause failure giving quieter operation.
  • Page 15 WARNING: Close hinged fire door. If fire door is open or spring is broken it may allow products of combustion into the living space by the furnace blower resulting in possible asphyxiation. g. Slightly depress the gas control lever and move it right to the “ON”...
  • Page 16 d. When the gas valve is energized it steps open at a i. Turn on all electric power to the appliance. reduced flow and opens fully after approximately 14 j. Replace the furnace door. seconds. k. Set the thermostat to “HEAT” and the desired temperature e.
  • Page 17 WARNING: WARNING: If furnace still does not light, turn the furnace off FOR YOUR SAFETY; WHAT TO DO IF (described above) and call your technician. In the YOU SMELL GAS: event of any flashback or explosion, immediately • Do not try to light any appliance. shut off furnace and call your service technician.

  • Page 18: Service Guide

    M1G*-models and “slow-open” for M1M*- and M1B*- DANGER: models which means it opens to a “low-fire” position, and after a few seconds, “steps-open” to “high-fire.” Before placing the furnace in service it must be checked to make sure it is equipped for the type 4.
  • Page 19 COMBUSTION AIR Factory Combustion Air Settings In order for the flame to burn efficiently, it must receive adequate combustion air. The amount of combustion air M1B* - 066 = 2.5 required will vary depending on altitude, actual B.T.U. content M1B* - 086 = 3.75 of the fuel being used, gas pressure, conversion to another gas and other factors.
  • Page 20 d. Check the thermocouple millivoltage. k. Open the manual shut-off valve and follow the FURNACE • Millivoltage should read between 18 and 30 mv. START-UP procedure as outlined previously in this manual • If the closed millivolt reading is not between 18 and 30 to put the furnace into operation.
  • Page 21 d. No voltage to control module - determine if 24 volts (or 120 Control Module Is Powered— volts) is available to the control module. If voltage is not Ignitor Does Not Heat Up available check for: a. Disconnect ignitor leads at AMP receptacle and check for •...

  • Page 22: Maintenance

    If no power to combustion blower then check wiring and certification, and, in many states, make installations control module; replace if necessary. illegal. Listed NORDYNE air conditioning Circulation Air Blower Will Not Operate Even Though The components are specified on the furnace label.

  • Page 23: Optional Accessories

    The furnace must also be equipped with an automatic damper For use with Blower Kit No. 903413 1/2 Hp 4 Speed (See Figures 37 or 38, NORDYNE p/n 901996 for furnaces Heating Cooling Speed/ Evap Coil without coil cavity, or p/n 901083 with coil cavity) to prevent...

  • Page 24: Wiring Diagrams

    GAS VALVE 115V: FIELD 115V: 703887B 24V: FIELD 24V: FAN ON/AUTO SWITCH Figure 40. Gas Atmospheric Furnace, M1GH 056, 070 Models NOTES 1. Incoming power must be polarized. Observe BLOWER color coding. (See furnace data label for MOTOR HEATING electrical information.) AUX.
  • Page 25 BLOWER NOTES HEATING/ MOTOR 1. Incoming power must be polarized. Observe color COOLING AUX. LIMIT 2 SPEED coding. (See furnace data label for electrical information.) BLUE 2. If any of the original wires (as supplied with the appliance) must be replaced, use 105˚C BLUE Thermoplastic type wire or its equivalent.
  • Page 26 NOTES 1. Incoming power must be polarized. Observe color BLOWER AUX. LIMIT BLOWER MOTOR BLOWER coding. (See furnace data label for electrical MOTOR MOTOR SINGLE information.) 4 SPEED SPEED BLUE 2 SPEED 2. If any of the original wires (as supplied with the appliance) must be replaced, use 105˚C Thermoplastic type wire or its equivalent.

  • Page 27: Equivalent Orifice Sizes At High Altitudes

    21. Equivalent Orifice Sizes at High Altitudes (Includes 4% Input Reduction for Each 1,000 Feet) FURNACE ORIFICE SIZE AND ALTITUDE - FEET MODEL OUTPUT CAPACITY SEA LEVEL 2000 3000 4000 5000 6000 7000 8000 9000 10000 ORIFICE SIZE - NAT. GAS M1M/G 056 ORIFICE SIZE - LP OUTPUT- MBTUH 45.4...
  • Page 28 INSTALLER: Please leave these installation instructions with the homeowner. ® ® 707776C (Replaces 707776B) Specifications and illustrations subject to change without notice and without incurring obligations. Printed in U.S.A. (04/99) 707776C St. Louis, MO...

This manual is also suitable for:

M1gb 056M1gd 056M1gh 070M1gb 070M1gc 056M1gc 070 ... Show all

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