Nordyne M1MB 056 Installation Instructions Manual

Nordyne M1MB 056 Installation Instructions Manual

Downflow, direct vent (sealed combustion) forced air gas & oil furnaces
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INSTALLATION INSTRUCTIONS
Downfl ow, Direct Vent (Sealed Combustion)
Forced Air Gas & Oil Furnaces
Series M1B, M1M & M5S
For installation in:
• Manufactured Homes
• Recreational Vehicles, Park Models,
& Manufactured Buildings
• Modular Homes / Buildings
WARNING:
FIRE OR EXPLOSION HAZARD
• Failure to follow safety warnings exactly
could result in serious injury or property
damage.
• Installation and service must be performed
by a qualifi ed installer, service agency or the
gas supplier.
• Do not store or use gasoline or other
fl ammable vapors 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.
• Leave the building immediately.
• 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 fi re department.
DO NOT DESTROY THIS MANUAL. KEEP IN A SAFE PLACE FOR FUTURE REFERENCE.
AVERTISSEMENT
RISQUE D'INCENDIE OU D' EXPLOSION
• Le non-respect des avertissements de
sécurité pourrait entraîner des blessures
graves, la mort ou des dommages matériels.
• L'installation et l'entretien doivent être
effectués par un installateur qualifi é, un
organisme de service ou le fournisseur de
gazstaller, service agency or the gas supplier.
• Ne pas entreposer ni utiliser de l'essence ni
d'autres vapeurs ou liquides infl ammables
dans le voisinage de cet appareil, ni de tout
autre appareil.
QUE FAIRE S'IL Y A UNE ODEUR DE GAZ
• Ne pas tenter d'allumer aucun appareil.
• Ne toucher à aucun interrupteur électrique;
n'utiliser aucun téléphone dans le bâtiment.
• Évacuer l'immeuble immédiatement.
• Appeler immédiatement le fournisseur de
gaz en employant le téléphone d'un voisin.
Respecter à la lettre les instructions du
fournisseur de gaz.
• Si personne ne répond, appeler le service des
incendies.

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  • Page 1 INSTALLATION INSTRUCTIONS Downfl ow, Direct Vent (Sealed Combustion) Forced Air Gas & Oil Furnaces Series M1B, M1M & M5S For installation in: • Manufactured Homes • Recreational Vehicles, Park Models, & Manufactured Buildings • Modular Homes / Buildings WARNING: AVERTISSEMENT FIRE OR EXPLOSION HAZARD RISQUE D’INCENDIE OU D’...
  • Page 2: Table Of Contents

    TABLE OF CONTENTS IMPORTANT SAFETY INFORMATION .......3 STARTUP & ADJUSTMENTS ........21 Operating Instructions - Direct Ignition (M1M) ..22 REQUIREMENTS & CODES ........3 How to Shut Off Gas - Direct Ignition ....22 GENERAL INFORMATION ..........5 Operating Instructions - Oil Gun (M5S) ....22 Manufacturer Warranty ..........5 Operating Instructions - Gas Gun (M1B) ....
  • Page 3: Important Safety Information

    IMPORTANT SAFETY INFORMATION WARNING: Safety markings are used frequently throughout this manual to designate a degree or level of seriousness and Do not use this appliance if any part has been should not be ignored. WARNING indicates a potentially submerged under water. Immediately call a hazardous situation that if not avoided, could result in qualifi...
  • Page 4 1. For direct-vent appliances, mechanical-vent heating Additional information listed below is for reference purposes only and appliances or domestic hot water equipment, where does not necessarily have jurisdiction over local or state codes. Always the bottom of the vent terminal and the air intake is consult with local authorities before installing any gas appliance.
  • Page 5: General Information

    L.P. gas. for manufactured (mobile) homes, recreational vehicles, and for use in residential/modular/commercial construction. NORDYNE will not be responsible for any costs found The furnace must be located so that venting can be necessary to correct problems due to improper setup, properly achieved.
  • Page 6 ALL MODELS CLOSET ALCOVE Front 6” 18” 6" (152 mm) Top Clearance Back 0” 0” Sides 0” 0” Roof Jack 0” 0” Removable access panel should be 6” 6” 0" Side installed above Clearance furnace door frame to Furnace Top and Sides of Duct 0”...
  • Page 7: Circulating Air Requirements

    • Air conditioning systems may require more duct register furnace and the fl oor or platform. and open louver area to obtain necessary airfl ow. Use NORDYNE’s certiduct program to determine proper Return air and circulating air ductwork must duct sizes for air conditioning.
  • Page 8: Furnace Installation

    FURNACE INSTALLATION Locating & Cutting Duct Openings Floor cut-outs and fuel line holes must be carefully located NOTE: These Installation procedures are suggested for to avoid misalignment of the furnace, and vent piping. To typical furnace installations. Since each installation is locate standard ducts see Figure 6 (page 9).
  • Page 9: Alternate Attachment Method

    20" 14 1/2" 2 3/4" FLOOR OPENING “X” REAR WALL OF CLOSET OR ALCOVE 2 1/4" SUPPLY AIR DUCT FLOOR FLOOR CUT-OUT CAVITY FOR STANDARD DUCT CONNECTORS Figure 9. Floor Cavity CUT-OUT FOR 1 3/4" OPTIONAL Duct Connector 3/4" COOLING COIL If Floor Cavity Type &...
  • Page 10: Round Duct Connector Installation

    Round Duct Connector Installation 1. Apply a bead of caulking, mastic, or other approved sealant around bottom side of connector. DUCT CONNECTOR 2. Install and center the duct connector in the fl oor opening. 3. Install the mounting plate under the back side of the SUPPLY AIR DUCT duct connector.
  • Page 11: Roof Jack Installation

    7” (HUD snowload zones) use an external roof jack extension (p/n 901937). Extensions are optional (F,S)AW(T)1523-(0,2,4)(A,S) 15” - 23” accessories and may be purchased through your (F,S)AW(T)2135-(0,2,4)(A,S) 21” - 35” NORDYNE distributor. (F,S)AW(T)2747-(0,2,4)(A,S) 27” - 47” (F,S)AW(T)3563-(0,2,4)(A,S) 35” - 63” (F,S)AW(T)5195-(0,2,4)(A,S) 51” - 95”...
  • Page 12: Locating & Cutting Roof Openings

    20" 10" REAR WALL OF CLOSET OR ALCOVE 24" Figure 18. Example of 2½ / 12 Slant Jack with Flashing FURNACE OUTER DOOR SLANT DECK “X” ROOF JACK IF ROOF FLASHING FACTOR SERIES PITCH IS: NUMBER Figure 19. Cut-Out Dimensions for 2”...
  • Page 13: Installing The Roof Jack

    Secure roof jack with appropriate fasteners after connecting to UPPER ROOF furnace JACK (CROWN) SCREWS WEATHER CAP Caulk under roof Roof flashing to prevent FLASHING COMPLETED water leakage ASSEMBLY Ceiling OUTER PIPE TO FURNACE INNER FLUE Optional 2-piece ceiling PIPE ring #902521 FLUE ASSEMBLY Figure 20.
  • Page 14: Electrical Information

    On-Off WARNING: Thermostat Wires Switch To avoid electric shock, personal injury, or death, Furnace Control Box turn off the electric power at the disconnect Blower or the main service panel before making any Plug To combustion electrical connections. Blower or Flame Power Roll-out Switch Entry...
  • Page 15: Low Voltage Wiring

    Low Voltage Wiring Grounding The thermostat must be installed according to the WARNING: instructions supplied by the thermostat manufacturer. Low voltage connections (24 VAC) from the thermostat To minimize personal injury, the furnace cabinet are wired to the terminal strip on the integrated control must have an uninterrupted or unbroken in the furnace.
  • Page 16: Fuel Supply & Piping

    FUEL SUPPLY & PIPING WARNING: WARNING: All piping must conform with local building FIRE OR EXPLOSION HAZARD codes, or in the absence of local codes, with • Failure to follow safety warnings exactly could the most recent edition of the National Fuel Gas result in serious injury or property damage.
  • Page 17: Leak Check

    NOTE: Optional fuel inlet lines are available for all gas Leak Check furnace models to permit the addition of a 1/2” F.P.T. shut-off valve above the fl oor. WARNING: The gas supply to your home will either be Natural Gas or FIRE OR EXPLOSION HAZARD L.P.
  • Page 18: One-Line System

    Cordset Bypass Solenoid Valve Pressure Adjustment Screw Nozzle Port 3/16 Flare Fitting Beckett Inlet Port INLET 1/4 NPTF 3/8" Oil Supply Line USE ONLY WITH VALVE ON DELAY Flue Gas A2EA-6520 4 GPH 100-150 PSI 3450 RPM NO. 2 & LIGHTER FUEL Vent with cap 3 GPH 150-200 PSI 3450 RPM Furnace...
  • Page 19: Priming Honeywell R7184

    Priming furnaces equipped with Honeywell can be converted for use with LP gas. Use the following procedure for gas conversion of the burner. R7184 primary control: 1. While the ignition is on, press for 1/2 second (or less), Atmospheric & Direct Ignition Furnaces and release the reset button.
  • Page 20: Flue Gas Sampling

    This furnace is shipped from the factory with orifi ces and gas regulator settings for natural gas operation at sea OTHER SIDE OF CAP level altitudes. At 2000 feet, the NFGC requires that this PRESSURE appliance be derated 4% for each 1000 feet of altitude. For REGULATOR example, the input needs to be reduced 8% at 2,000 feet, 12% at 3,000 feet and etc.
  • Page 21: Startup & Adjustments

    STARTUP & ADJUSTMENTS PLEASE READ ALL SAFETY INFORMATION BEFORE LIGHTING THE FURNACE WARNING: WARNING: Before placing the furnace in service, it must FIRE OR EXPLOSION HAZARD be checked to ensure it is equipped for the • Failure to follow safety warnings exactly could type of gas being used.
  • Page 22: Operating Instructions - Direct Ignition (M1M)

    Operating Instructions for Direct Ignition 3. Set the furnace On-Off Switch to OFF. • Honeywell (Figure 30): Turn gas control knob clockwise Furnaces (M1M Models) to OFF, Robertshaw (Figure 31): Push the gas control Direct ignition furnaces do not have a pilot. Ignition is lever to OFF.
  • Page 23: How To Shut Off Gas - Gas Gun

    5. Wait ten minutes to clear out any gas. If you smell gas, The furnace is equipped with a multi-speed motor. Refer STOP! and follow the safety information. If gas is not to the furnace wiring diagram (Figures 38 & 39, pages detected, proceed to the next step.
  • Page 24: Gas Gun

    Gas Gun (M1B Models) OPERATING SEQUENCE Combustion air box adjustment is made to the main burner Direct Ignition Furnaces (M1M Models) by loosening the two lock nuts on the plastic air shutter, 1. On a call for heat, the thermostat contacts close, located on the left side of the burner blower housing.
  • Page 25: Furnace Controls & Functions

    4. After fl ame is established, the ignition remains on for Gas Valve 10 seconds to ensure fl ame stability. It then turns off. The gas valves for the gas furnaces are a 100% shut-off 5. The circulating air blower will energize after the type and will fail safe, if for some reason the gas is turned temperature fan switch closes.
  • Page 26: Troubleshooting

    TROUBLESHOOTING Control Module is Powered - Ignitor won’t Heat Direct Ignition Furnaces (M1M Models) & 1. Disconnect ignitor leads at AMP receptacle and check Gas Gun Furnaces (M1B Models) for 120 volts at the plug during ignition sequence. High Gas Bills 2.
  • Page 27: Oil Gun Models (M5S Models)

    Oil Gun - Honeywell R7184 or Beckett 7505 7. If the burner stays running, the system is operational. 8. If the (LED indicator for R7184 control; green LED for Controls Only - M5S Series. 7505 control) is off, check the cad cell assembly after Burner does not start with a call for heat disconnecting the line voltage.
  • Page 28: Optional Accessories

    fl ame status. When fl ame is sensed, the fl ame LED is lit. If fl ame sense is weak, yellow LED will fl ash. around the heat exchanger (NORDYNE p/n 901996 for furnaces without coil cavity, or p/n 901083 with coil cavity).
  • Page 29: Optional Add-On Air Conditioning

    Optional Add-On Air Conditioning WARNING: Whether split system or single package, an energy- saving NORDYNE Air Conditioner is available that has Use of furnace or air conditioning components been designed specifi cally for manufactured housing that are not included in the certifi cation of...
  • Page 30: Figure & Tables

    Comb. Motor A/C Ready Model No MBtu/h MBtu/h In WC Nozzle Direct Blower Tons Nat. M1MB 056 M1MC 056 M1MB 070 M1MC 070 M1MB 077 M1MC 077 M1MB 090 M1MC 090 M1BB 066 M1BC 066 M1BB 086 M1BC 086 M5SB 066 .50 Gph...
  • Page 31: Table 12 - A/C Blower Speed Selection

    ALTITUDE - FEET FURNACE ORIFICE SIZE & MODELS OUTPUT CAPACITY 2,000 3,000 4,000 5,000 6,000 7,000 8,000 9,000 10,000 LEVEL Orifi ce Size - Nat. Gas M1M - 056 Orifi ce Size - LP Output - MBTUH 45.4 41.8 40.1 38.5 37.0 35.5...
  • Page 32: Gas Information

    GAS INFORMATION GAS FLOW RATES GAS FLOW RATES CUBIC FEET PER CUBIC FEET PER TIME FOR TIME FOR REVOLUTION OF GAS METER REVOLUTION OF GAS METER ONE REVOLUTION ONE REVOLUTION (SECONDS) (SECONDS) 1,800 3,600 1,500 3,000 1,286 2,571 1,125 2,250 1,000 2,000 1,800...
  • Page 33: Electrical Information

    ELECTRICAL INFORMATION Figure 38. Gas Direct Ignition Furnace, Heating & A/C Ready - All M1M Models...
  • Page 34 Figure 39. Gas and Oil Furnaces, A/C Ready - M1B & M5S (066, 086) Models...
  • Page 36: Installation Checklist

    INSTALLATION / PERFORMANCE CHECK LIST ELECTRICAL SYSTEM: ATTENTION INSTALLERS: It is your responsibility to know this product better than your customer. Electrical connections tight? This includes being able to install the product according to strict Line voltage polarity correct? safety guidelines and instructing the customer on how to operate and maintain the equipment for the life of the product.

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