Nordyne M3RL CUT Duct Opening Finger Tabbed only, Installing Screw Down Duct CON- Nector

Page 11

5-1/4" to the left of center of the floor cut-out, or for entry through right-side of furnace measured 9" to the right of center of the floor cut-out.

d. Cut out floor opening and one gas line hole.

CUT DUCT OPENING (FINGER TABBED ONLY)

a.Place duct connector through the floor open- ing with bottom tabs resting on top of the supply air duct.

b.Center duct connector and push back against rear edge of floor opening.

c.Mark cut-out location (tab area) and remove duct connector.

d.Cut out duct opening 1/16" larger than area marked.

INSTALL FURNACE MOUNTING PLATE a. Place mounting plate (supplied within duct

connector) at rear of the floor opening (See Figure 9).

INSTALLING PLATINUM SERIES 14” ROUND DUCT CONNECTOR

a.Place duct connector through the floor open- ing. (See Figure 9).

b.Secure duct connector to floor.

INSTALLING SCREW DOWN DUCT CON- NECTOR

a. Apply a bead of caulking, mastic, or other approved sealant around bottom side of 1/2” flange and restrictor plate, when applicable. b. Locate the duct connector over duct and carefully lower screw down duct connector

into place.

c. Once duct connector is located on duct, temporarily hold in place while fastening duct connector to the floor using flat head screws or nails. Be sure flanges of duct connector stay in contact with the duct.

d. Screw plenum to duct making sure a seal is made between the duct and the duct con-

MOUNTING

 

REAR WALL

PLATE

 

 

FLOOR

OPENING

FUEL

LINE

HOLES

SUPPLY AIR DUCT

Figure 8. Mounting Plate

 

 

SCREWS

BEND CONNECTOR TABS

SCREWS

MOUNTING

 

UNDER DUCT OPENING

 

PLATE

 

 

MOUNTING

MOUNTING

 

PLATE

PLENUM

PLATE

FLOOR

FLOOR

 

OPENING

OPENING

 

 

 

FUEL

FUEL

FUEL

LINE

LINE

LINE

HOLES

HOLES

HOLES

 

 

SUPPLY AIR DUCT

SUPPLY AIR DUCT

 

 

 

14” SUPPLY

 

 

CONNECTION

Finger Tabbed

Screw Down

Platinum Series

Duct Connectors

Duct Connectors

Figure 9. Duct Connector

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Contents Installation Instructions Page L 060 a a W Table of ContentsTop View Shipping WeightFurnace Specifications/Airflow Data GeneralGeneral Description Owner InformationManufacturer WARRANTY, OWNER’S Responsibilities Installation StandardsMinimum Clearances LocationCirculating AIR Supply Return AIR Provisions Duct ConnectorsDucted Return AIR Closet or AlcoveAIR Distribution Systems Duct Connector SelectionDuct Installation Screw Down Platinum Series Installing Platinum Series 14 Round Duct ConnectorInstalling Screw Down Duct CON- Nector CUT Duct Opening Finger Tabbed onlyAlternate Attachment Methods Installing Finger Tabbed Duct CON- NectorsGeneral Install FurnaceVenting and Combustion AIR Requirements Furnace Must not be Common Vented with Other Appliances Venting RequirementsVent Termination Clearances for Direct Vent Furnaces Vent TableVent Pipe Material Vent Pipe InstallationHorizontal Venting Downflow FurnaceHorizontal Venting Drainage of Condensate from Furnace Alternate Horizontal Vent InstallationGAS Supply and Piping Furnace with Condensate Drain Trap AssemblyTo Turn Off Fuel Supply to the Appliance ConversionLeak Check High Altitude DerateApproximate Orifice Size for Natural and LP Gases To Remove the Burner AssemblyTo Remove the Burner Orifices To Convert the Unit to the Alternate GasConvertible Pressure Regulator Cap Lighting and Adjustment of the ApplianceCompleting the Conversion Electrical WiringLine Voltage Wiring Type of Fuel Manifold PressureElectrical Data Low Voltage WiringVentilation START-UP and AdjustmentsStart-Up Procedure Verifying Firing Rate Shut Down ProcedureSequence of Operation Verifying Burner Operation Verifying Operation of the Supply Air Limit SwitchDescription of Components Gas Flow RateAir Filter MaintenanceAccessory Kits Combustion Air and Vent SystemBlower Compartment Condensate Drain AssemblySystem Operation Information LubricationFurnace Fails to Operate Cooling ModeM3 Downflow Furnace Downflow Furnace Wiring Diagram Page Fuel Type INSTALLATION/PERFORMANCE Check List¢7082197¤

M3RL specifications

The Nordyne M3RL is a high-efficiency gas furnace designed for residential heating applications, characterized by its robust performance and advanced technologies. It is part of Nordyne's distinguished lineup, which emphasizes reliability and comfort in home heating systems. The M3RL model is particularly notable for its focus on energy efficiency, making it an attractive option for homeowners looking to reduce their energy expenses while maintaining optimal heating levels.

One of the standout features of the Nordyne M3RL is its high Annual Fuel Utilization Efficiency (AFUE) rating, which often exceeds 80%. This efficient design ensures that more of the fuel consumed is converted into usable heat for the home. By employing a variable-speed blower, the M3RL enhances comfort by allowing for more precise control over air circulation, contributing to better temperature consistency throughout the living space.

The M3RL utilizes advanced multi-stage heating technology, allowing the system to operate at different capacities depending on the heating demand. This means it can run at lower settings during milder weather, which not only saves energy but also reduces wear and tear on the equipment, extending its lifespan. The furnace also includes a reliable ignition system that ensures quick and safe starts, eliminating the inefficiencies associated with older pilot light systems.

Another important characteristic of the Nordyne M3RL is its acoustical insulation, which minimizes operational noise. The quiet operation is particularly valued in residential settings, where noise pollution can be disruptive. Additionally, the furnace features a compact design, making it easy to install in a variety of spaces, including tight basements or utility rooms.

The M3RL model is also equipped with a smart control system that interfaces seamlessly with modern thermostats, offering homeowners the ability to program their heating schedules and optimize energy usage. This integration with smart home technology positions the M3RL not just as a heating solution, but as a component of a more comprehensive home energy management system.

In conclusion, the Nordyne M3RL gas furnace represents a blend of efficiency, advanced technology, and user-friendly features. Its high AFUE rating, multi-stage heating capability, quiet operation, and smart technology integration make it a reliable choice for homeowners aiming to enhance their comfort while minimizing energy costs. This furnace is a testament to Nordyne's commitment to innovation in the HVAC industry.