Nordyne M3RL Series installation instructions Owner Information, General Description

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!WARNING:

Do not use this appliance if any part has been submerged under water. Im- mediately call a qualified service tech- nician to inspect the appliance and to replace any part of the control system and any gas control that has been submerged underwater.

NOTICE TO INSTALLER

Installer is advised to follow carefully all instruc- tions and warnings in this manual to insure maximum performance, safety, and operating efficiency of these appliances. Improper installa- tion may create hazardous conditions, and will void the appliance warranty.

GENERAL

General Description

The M3 series gas furnaces are listed direct vent (sealed combustion) forced air furnaces for use with both natural and propane gases. The M3 series is a Category IV and type FSP furnace. The M3 furnace series has been certified to the ANSI Z21.47/CSA2.3-2001 for use in the United States and Canada and to the UL307B —1995 for use in the United States.

These furnaces may be installed in:

1.Manufactured Homes.

2.Park Models and Manufactured buildings

3.Modular Homes/Buildings

The following are safety guidelines with refer- ences to their specific sections or pages in the manual.

1.Use only type of gas approved for this furnace. Refer to the furnace rating plate.

2.Install this furnace only in location and position as specified in pages 7 - 13 of these instructions.

3.Provide adequate combustion and ventila- tion air to the furnace space as specified in pages 13 - 20 of these instructions.

4.Combustion products must be discharged outdoors, connect this furnace to an ap- proved vent system only, as specified in pages 14-19 of these instructions.

5.Never test for gas leaks with an open flame. Use a commercially available soap solution made specifically for the detection of leak to check all connections.

6.Always install furnace to operate within the furnace’s intended temperature rise range with a duct system that has an external static pressure within the allowable range, as specified in page 4 of these instruc- tions. See furnace rating plate.

7.When a furnace is installed so that supply ducts carry air circulated by the furnace to areas outside the space containing the furnace, the return air shall also be handled by duct(s) sealed to the furnace casing and terminating outside the space contain- ing the furnace. Note: This section only applies to furnaces installed with side or top return air.

8.A gas-fired furnace for installation in a residential garage must be installed as specified in page 7 of these instructions.

9.The furnace is not to be used for tempo- rary heat of buildings or structures under construction.

M3 series furnaces are air conditioning ready as shipped. The furnace cooling capacities of the blower motor speed taps are shown in Table 3. Table 2 lists the shipping weights for the M3 series furnaces.

OWNER INFORMATION

NORDYNE has been involved in the design of products for the manufactured home industry since the first manufactured home or trailer was built.

NORDYNE originated the sealed combustion system, which separates the furnace com- bustion system from the living area of the home, now a standard for the manufactured home industry.

NORDYNE engineers developed the first cen- tral heating system and the first central air conditioner for manufactured homes.

NORDYNE is dedicated to bringing to its cus- tomers the finest heating and cooling comfort possible. NORDYNE constantly seeks to fur- ther refine its products to continuously provide exceptional comfort.

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Contents Installation Instructions Page L 060 a a W Table of ContentsFurnace Specifications/Airflow Data Shipping WeightGeneral Top ViewGeneral 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 Installing Screw Down Duct CON- Nector Installing Platinum Series 14 Round Duct ConnectorCUT Duct Opening Finger Tabbed only Screw Down Platinum SeriesAlternate 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 AssemblyLeak Check ConversionHigh Altitude Derate To Turn Off Fuel Supply to the ApplianceTo Remove the Burner Orifices To Remove the Burner AssemblyTo Convert the Unit to the Alternate Gas Approximate Orifice Size for Natural and LP GasesConvertible Pressure Regulator Cap Lighting and Adjustment of the ApplianceLine Voltage Wiring Electrical WiringType of Fuel Manifold Pressure Completing the ConversionElectrical Data Low Voltage WiringVentilation START-UP and AdjustmentsStart-Up Procedure Verifying Firing Rate Shut Down ProcedureSequence of Operation Description of Components Verifying Operation of the Supply Air Limit SwitchGas Flow Rate Verifying Burner OperationAccessory Kits MaintenanceCombustion Air and Vent System Air FilterSystem Operation Information Condensate Drain AssemblyLubrication Blower CompartmentFurnace Fails to Operate Cooling ModeM3 Downflow Furnace Downflow Furnace Wiring Diagram Page Fuel Type INSTALLATION/PERFORMANCE Check List¢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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