Nordyne M3RL Series Installing Finger Tabbed Duct CON- Nectors, Alternate Attachment Methods

Page 12

nector. Additional screws may be added if required.

e. Cut away along edge of flange allowing the center to drop into the duct. Remove section of duct with caution, as edges will be sharp.

INSTALLING FINGER TABBED DUCT CON- NECTORS

a.Place duct connector through the floor open- ing with bottom tabs extending through the duct opening. (See Figure 9)

b.Secure duct connector to floor.

c.Bend bottom tabs under and up tightly against the supply air duct (See Figure 10).

NOTE: The duct connector is designed for use on ducts 12" in width. When using the connec- tor on 12" wide ducts, there may be insufficient clearance to bend the tabs on two sides of the duct connector. In such cases the tabs may be

attached to the sides of the duct by using sheet metal screws or other suitable fasteners. (See Figure 11).

If sealant, mastic, or tape is used to provide a better seal, it should be approved by applicable national or local codes.

ALTERNATE ATTACHMENT METHODS

This procedure may also be used to install a furnace duct connector to narrow metal ductwork where insufficient clearance prevents bending of the duct connector tabs at the side(s) of the duct. (See Figure 12).

1.Score and cut the top of the metal duct as indicated in Step 1 or Step 2. With Step 1 choice, also cut out the metal from the shaded area “A”.

2.Fold the duct flap “B” up, (See Step 3).

TABS

TABS

DUCT

DUCT

1. INSERT DUCT PLENUM CONNECTOR

2. BEND BOTTOM TABS OVER

INTO DUCT CUT-OUT.

AND ONTO THE UNDERNEATH

 

DUCT SERVICE.

Figure 10. Installation of Duct Connector

Duct Connector

Duct

Narrow Duct

 

Figure 11. Narrow Duct Installation

 

 

 

STEP 1.

 

STEP 2.

 

Fold Back Flap "B"

Fold Back Flap"B"

 

 

Cut- Out

"B"

Area "A"

"A"

"A"

 

"B"

Cut- Out Area"A"

Cut Lines

"B"

"B"

Duct

Top of Duct

Fold Back Flap "B"

Bend Duct Connector Tabs Up and Over- (along length of duct)

Fold Back Flap"B"

Staple Folded Duct

Flap (typ) to side of Duct

Connector

STEP 3.

Duct

Duct

 

Flap "B"

STEP 4.

 

Duct

Figure 12. Alternate Installation

12

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Contents Installation Instructions Page Table of Contents L 060 a a WShipping Weight Furnace Specifications/Airflow DataGeneral Top ViewOwner Information General DescriptionInstallation Standards Manufacturer WARRANTY, OWNER’S ResponsibilitiesLocation Circulating AIR SupplyMinimum Clearances Duct Connectors Return AIR ProvisionsCloset or Alcove Ducted Return AIRDuct Connector Selection Duct InstallationAIR Distribution Systems Installing Platinum Series 14 Round Duct Connector Installing Screw Down Duct CON- NectorCUT Duct Opening Finger Tabbed only Screw Down Platinum SeriesInstalling Finger Tabbed Duct CON- Nectors Alternate Attachment MethodsInstall Furnace Venting and Combustion AIR RequirementsGeneral Venting Requirements Furnace Must not be Common Vented with Other AppliancesVent Table Vent Termination Clearances for Direct Vent FurnacesVent Pipe Installation Vent Pipe MaterialDownflow Furnace Horizontal VentingHorizontal Venting Alternate Horizontal Vent Installation Drainage of Condensate from FurnaceFurnace with Condensate Drain Trap Assembly GAS Supply and PipingConversion Leak CheckHigh Altitude Derate To Turn Off Fuel Supply to the ApplianceTo Remove the Burner Assembly To Remove the Burner OrificesTo Convert the Unit to the Alternate Gas Approximate Orifice Size for Natural and LP GasesLighting and Adjustment of the Appliance Convertible Pressure Regulator CapElectrical Wiring Line Voltage WiringType of Fuel Manifold Pressure Completing the ConversionLow Voltage Wiring Electrical DataSTART-UP and Adjustments Start-Up ProcedureVentilation Shut Down Procedure Sequence of OperationVerifying Firing Rate Verifying Operation of the Supply Air Limit Switch Description of ComponentsGas Flow Rate Verifying Burner OperationMaintenance Accessory KitsCombustion Air and Vent System Air FilterCondensate Drain Assembly System Operation InformationLubrication Blower CompartmentCooling Mode Furnace Fails to OperateM3 Downflow Furnace Downflow Furnace Wiring Diagram Page INSTALLATION/PERFORMANCE Check List Fuel Type¢7082197¤

M3RL Series specifications

The Nordyne M3RL Series is a cutting-edge line of residential heating and cooling systems designed to enhance home comfort while emphasizing energy efficiency and reliability. Engineered with the latest technologies, the M3RL Series stands out as a premier choice for homeowners seeking optimal climate control, advanced features, and quiet operation.

One of the standout characteristics of the Nordyne M3RL Series is its high-efficiency performance. With Seasonal Energy Efficiency Ratios (SEER) that surpass industry standards, these systems deliver exceptional cooling power while using less energy. This efficiency not only translates to lower utility bills but also reduces the environmental footprint, making the M3RL Series an eco-friendly option.

Incorporating advanced inverter technology, the M3RL Series units operate at varying speeds, allowing them to adjust cooling and heating output to match the current demand. This feature ensures consistent temperature control while minimizing energy consumption. The systems are also equipped with a variable-speed compressor, which works in harmony with the inverter technology to provide seamless operation and quiet performance.

The M3RL Series showcases durability through its robust construction. The outdoor units feature a powder-coated finish to withstand the elements, while the indoor components are designed with high-quality materials to ensure longevity. The environmentally friendly refrigerant used in these systems further emphasizes Nordyne's commitment to sustainability.

Another notable aspect is the advanced control options available with the M3RL Series. Homeowners can choose from various thermostat solutions, including smart thermostats that offer remote control capabilities and programming features. This flexibility allows users to optimize their heating and cooling schedules, enhancing both comfort and efficiency.

In terms of installation, the M3RL Series is designed with versatility in mind. The compact and lightweight design of the units ensures ease of placement in various home layouts, while the comprehensive installation manuals and support from Nordyne make the process straightforward for HVAC professionals.

The Nordyne M3RL Series is truly a hallmark of modern home climate control, embodying efficiency, durability, and advanced technology. With its combination of high-performance features, user-friendly controls, and a commitment to sustainability, it provides an ideal solution for homeowners looking to enhance comfort while reducing energy costs. The M3RL Series represents a significant step forward in the evolution of residential heating and cooling systems.
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