Nordyne M1G, M1B, M1S owner manual Control Module Status Indicators M1M Series

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Control Module Status Indicators - M1M Series

Control Status

The Red LED labeled “STATUS” is provided to indicate system faults.

Steady ON:

Control OK

Steady OFF:

No power

Rapid flash:

False flame or internal control fault

One flash:

Limit switch is open

Two flashes:

Pressure switch is open

Three flashes:

Pressure switch is stuck closed

Four flashes:

Lockout due to failed ignition

Five flashes:

L1 neutral reversed or L1 voltage

 

not present on L1

Flame Status

A Yellow LED labeled “Flame” is provided to indicate flame status. When flame is sensed, the flame LED is lit. If flame sense is weak, yellow LED will flash.

Control Module Status Indicator - M1B

a. One flash-the control is in lock-out because the inducer centrifu gal switch is or was stuck closed.

b. Two flashes-the control is in lockout because the signal was not received by the control that the inducer centrifugal switch had closed within the time.

c. Three flashes-the control is in lockout because a failed ignition attempt, a gas valve error, or a false flame sensed during the warm up period. If false flame has been sensed, the control will return to normal operation, and repeat ignition sequence when the false flame is not present.

d. Four flashes-the control is in lockout due to a failure within the control board.

Control Module Status Indicator - M1S* Series

The indicator light on the oil primary control provides lockout, recycle, and cad cell indications as follows:

1.Flashing 1/2 second on, 1/2 second off - system is locked out or in restricted mode.

2.Flashing 2 seconds on, 2 seconds off - control is in recycle mode.

3.Indicator light is on - cad cell is sensing flame.

4.Indicator light is off - cad cell is not sensing flame.

may be defective. Replace the gas valve if necessary.

e. Be sure the pilot shield is in place.

f.Check for gas leaks in the pilot line or the pilot assembly.

g.Check the flue assembly to make sure all connections are tight.

h.See the FURNACE START-UP procedure for lighting details.

Main Flame Is Not Burning Properly a. Check the manifold gas pressure.

b. Check for the correct main burner orifice. - See the nameplate SPECIFICATION.

c. Check the flue for any blockages or loose connections.

d.Check the combustion air passages for block- age.

High Gas Bills

a. Be sure the proper orifices are being used.

b.Be sure the return air system is clear and free of blockage.

c.Be sure the furnace filter is clean.

d.Be sure the home is insulated, that windows and doors fit tightly, and that there are no leaks in the heating duct system.

e.Check the room thermostat to be sure the setting is not higher than necessary. Low

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Contents Leave These Instructions with the Homeowner Table of Contents B 056 a B WSpecifications MANUFACTURERWARRANTY, OWNER’S ResponsibilitiesOwner Information about Your Central Furnace System General DescriptionM1 Furnace Specifications NatInstallation Standards Field Installation Blower AssembliesCould cause unsafe operation, explo You feel that the furnace is not operUnit Location Minimum ClearancesReturn AIR Provisions Minimum ClearancesAll Weather Roof Jack Assemblies 27 45AIR Distribution Systems Roof Jack SelectionApplication Notes Slant Deck FlashingsDuct Connector Selection Platinum Series NON-PLATINUM SeriesCloset or Alcove CUT OUT Floor Opening & Fuel Line Hole InstallationNon-Platinum Series Alternate Attachment Methods Install Furnace Install Roof JackManufactured Home Factory Installation of TRANSIT- Mode Venting SystemManufactured Home Site Connect Power Supply Wires Electrical WiringConnect Thermostat Wires Fuel Piping Control Panel All ModelsThermostat Wire Gauge Typical Gas PipingTypical Oil Piping for Above Ground Single-Line Supply How to Eliminate Air Leaks Hook-Up Procedure See FigureFuel Oil Type Flue GAS Sampling Lighting and ShutdownGENERAL-ALL Models Lighting Instructions for STAND- ING Pilot ModelsSequence of Operation for STAND- ING Pilot Standing Pilot ValveGENERAL-DIRECT Ignition Models Furnace if YOU Smell GASOperating instructions for M1M Models with Direct IgnitionOperating Instructions for OIL and GAS GUN Furnace Oil Gun ModelSequence of Operation for OIL GUN Models Oil Furnace Honeywell R7184 ControlSequence of Operation for GAS GUN Models Furnace Controls and FUNC- TionsService Guide Burner AdjustmentsCombustion AIR Gas GunElectrode Setting Oil Gun Only Oil Gun OnlyGAS Conversion Atmospheric and Direct Ignition FurnacesTroubleshooting Standing Pilot Models Burner AdjustmentsControl Module Status Indicators M1M Series Troubleshooting Direct Ignition Furnaces Including GAS GUN Control Module Is Powered Ignitor Does Not Heat UpTroubleshooting OIL GUN Cad Cell Resistance when Sensing flameMaintenance Optional AccessoriesBy Serviceman Additional OIL Furnace MaintenanceCoil Cavity Damper Non-Platinum Series Only Damper without Coil Cavity Non-Platinum Series OnlyCooling Speed/ Evap Coil Wiring Diagrams M1GH 077, 090 Models 710150 08/00 710151 08/00 Blower WireTable Gas and Oil Furnaces, A/C Ready M1 B, S 066, 086 Models Equivalent Orifice Sizes AT High Altitudes High Altitude
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M1M, M1S, M1B, M1G specifications

Nordyne, a renowned player in the HVAC industry, has introduced a range of high-efficiency gas furnaces, including the M1S, M1G, M1B, and M1M models. Each of these furnaces is designed to provide efficient heating solutions tailored to the needs of homeowners.

The M1S series is well-known for its reliability and performance. It features a single-stage heating process that delivers consistent warmth to any space. With its multi-speed blower, the M1S ensures quiet and comfortable airflow, adapting seamlessly to varying temperature demands. Its robust construction coupled with an energy-efficient design makes it an ideal choice for those looking for dependable heating without sky-high utility bills.

The M1G model steps it up with a two-stage heating system that offers enhanced comfort and efficiency. By operating at a lower speed during milder conditions, the M1G can effectively reduce energy consumption while still maintaining a cozy environment. It is equipped with a variable-speed blower that not only enhances efficiency but also minimizes noise, making it perfect for residential areas. The M1G is designed with advanced safety features, including an integrated control board that monitors furnace functions to ensure optimal performance.

For those seeking a budget-friendly option without compromising on quality, the M1B model provides a solid performance with its straightforward, reliable single-stage heating. While it may lack some of the advanced features found in higher-end models, the M1B is built for ease of use with straightforward controls and maintenance, making it a great option for families.

The M1M model integrates cutting-edge technology with a focus on maximum efficiency. Featuring a modulating gas valve, this model can adjust its output based on real-time heating requirements. This adaptability ensures that the furnace operates at peak efficiency, significantly lowering energy bills and improving overall comfort. The M1M also boasts advanced diagnostic capabilities that allow for easy troubleshooting, thus reducing maintenance time and costs.

In summary, Nordyne's M1 series furnaces—M1S, M1G, M1B, and M1M—offer a range of options to meet diverse heating needs. With technologies designed for efficiency, reliability, and comfort, Nordyne continues to solidify its reputation as a leader in the HVAC market, providing homeowners with effective heating solutions tailored to their lifestyles and budgets.
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