Nordyne SERIES M1B, AND M5S Maintenance, Homeowner Information, Installer Information

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OPTIONAL ADD-ON AIR CONDITIONING Whether split system or single package, an energy-saving NORDYNE Air Conditioner is available that has been designed specifi cally for manufactured housing applications and can best handle your home comfort needs. Ask your dealer or contractor about NORDYNE add-on central air conditioning systems.

Single package unit includes cooling coils, compressor, and vertical discharge fan.This type of unit connects with the existing home air duct system (an optional close-off damper is required with the furnace).

Split system unit with vertical discharge for quiet operation connects with NORDYNE cooling coil furnace (optional coil cavity required with “A” model furnaces).

MAINTENANCE

Homeowner Information

•On some closet installations, the return air opening to the furnace may be on the fl oor, in the door, in the side wall of the closet, or any combination of these. The upper grille on the front of the furnace admits return air to the blower. Return air must be provided back to the circulating blower in order to provide air distribution. See Figure 38.

•Filters - At least twice each season (more often in dusty areas) remove and clean the air fi lters with a vacuum or with warm water and soap. Reinstall when dry. Also clean dust and lint around furnace and in the furnace vestibule.

•During extremely cold weather, ice may form on the furnace roof jack (Figure 39). Small amounts of ice forming on the roof jack will present no problems to proper furnace operation. Excessive ice formation could restrict the combustion air supply to the burner, causing ineffi cient burner operation. If excessive ice has formed on the air inlet or exhaust portions of the roof jack, it must be carefully removed.

Installer Information

All furnaces need periodic service at the beginning of each heating season. Call your serviceman to:

•Remove the air circulator and clean all dust and lint from the unit with a stiff bristle brush.

•Inspect the combustion chamber blower compartment, fl ue collar and Roof Jack.

•Check the gas valve (if applicable) and fuel line connections for leaks.

•Make any adjustments necessary for good operation.

WARNING:

Use of furnace or air conditioning components that are not included in the certification of this appliance may create a hazard, invalidate the certification, and in many states, make installations illegal. Listed NORDYNE air conditioning components are specified on the furnace label.

Additional Oil Furnace Maintenance

In addition to the preceding, the following should be performed by a qualifi ed service contractor at least once each season for oil-fi red furnaces:

•Replace the oil nozzle with the type nozzle specifi ed for your furnace.

•Clean, adjust and replace if necessary the spark electrodes.

•Reset the nozzle/drawer assembly to factory specifi cations.

•Clean the inside of the furnace heat exchanger and replace the combustion liner if necessary.

•Clean or replace the oil fi lter element at the oil tank.

•Adjust the burner for top effi ciency and check to make sure all fi ttings are leak-tight.

Figure 38. Periodic Cleaning

Check for

Ice Here

Figure 39. Roof Jack

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Contents Installation Instructions For installationHomeowner Information Installer Information Information Return Air Connections Supply Air ConnectionsStanding Pilot Models Direct Ignition Models Oil Gun Models Safety Information Requirements and CodesSafety Gas Piping and Gas Pipe Pressure TestingGeneral Installation Combustion and Ventilation AirGeneral Information Minimum ClearancesALL Models Closet Alcove Unit Location AssemblyApplications BlowerGas piping is not run in or through the return duct system Circulating AIR RequirementsReturn Air Connections Supply Air ConnectionsGeneral Information Furnace InstallationDetermine which duct connector to use from Requirements and CodesCut-Out Dimensions for Standard Duct Connectors Duct Connector Sizes Standard Duct Connector InstallationDuct Connector Tabs Installing The FurnaceRoof Jack Selection Roof Jack InstallationRequired ceiling and roof cut-out openings see Application NotesRoof Jack Series If Roof Pitch is Slant Deck Factor Slant Deck FlashingsConnect fl ue pipe to fl ue collar of furnace. See Figure Installing The Roof JackInstallation of Transit-Mode Venting System Secure fl ashing with appropriate fastenersLine Voltage Wiring Electrical InformationThermostat Wire Gauge Low Voltage WiringWire Heating Heating/Cooling Thermostat Length Unit to T’STATFuel Supply and Piping Important NotesOil Tank and Piping Installation Fuel line Hook-UpLeak Check Fuel Oil TypeConversion to Propane LP Gas High Altitude Conversion Honeywell Gas ValveLighting Instructions Standing Pilot Models Standing Pilot ValveReplace the furnace door Operating Instructions for Direct Ignition Models M1MBurner Adjustments For oil, shut off all valves Replace the furnace doorPilot Flame Standing Pilot Only Factory Combustion Air Settings Electrode Setting Oil Gun OnlyCombustion Air Standing Pilot w/Induced Draft Blowers Operating SequenceStanding Pilot M1M Models with Direct IgnitionFurnace Controls & Functions Troubleshooting Standing Pilot ModelsDirect Ignition Furnaces Including Gas Gun M1B Series see , Page Cad Cell Resistance when Sensing flame Burner will not start and the LED indicator isOptional Accessories Cad cell is operational, replace the primary controlControl Module Status Indicator M1B Control Module Status Indicators M1M SeriesRed LED Indicator Status Control Module Status Indicator M5S SeriesAdditional Oil Furnace Maintenance MaintenanceInstaller Information Clean or replace the oil fi lter element at the oil tankM1MC Burner Direct Blower TonsM1GB Manifold Pressure Natural Gas 3.5 w.cOutput Mbtuh Equivalent Orifice Sizes for High Altitude InstallationsOrifi ce Size Nat. Gas Orifi ce Size LP Orifi ce Size Nat. GasGAS Information Gas Flow Rates Cubic Feet per HourWiring Diagrams ModelsM1GH 077, 090 Models Gas Atmospheric M1GB 056, 070 ModelsWiring Diagram Steady OFF No power Blinking Wiring Diagram Installation / Performance Check List Installation Address
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