TABLE OF CONTENTS

General

4

Unit Dimensions

4

Shipping Weights

4

Furnace Specification

4

Air Flow Data

4

Owner's Information

5

Installation Requirements

6

Location

7

Clearance

7

Circulating Air Supply

7

Return Air Provisions

8

Air Distribution Systems

9

Duct Connector Selection

10

Duct Installation

10

Venting and Combustion

 

Air Requirements

13

Venting Requirements

14

Vent Table

15

Vent Pipe Material

16

Vent Pipe Length and Diameter

16

Vent Pipe Installation

16

Pipe Routing & Support

16

Location of Outdoor Termination

16

Horizontal Venting

18

Vertical Venting

18

Vent Freezing Protection

19

Concentric Vent Termination

19

Drainage of Condensate

 

From Furnace

19

Gas Supply and Piping

20

Leak Check

21

High Altitude Derate

21

Pressure Switch

21

Conversion

21

Lighting and Adjustment

 

of the Appliance

23

Electrical Wiring

24

Line Voltage Wiring

24

Low Voltage Wiring

26

Ventilation

26

Start-up and Adjustment

26

Start-Up Procedure

26

Shut Down Procedure

27

Verifying and Adjusting Firing Rate ...

27

Temperature Rise

27

Verifying and Adjusting

 

Verifying Burner Operation

28

Verifying Operation of the

 

Supply Air Limit Switch

28

Description of Components

29

Furnace Accessories

29

Maintenance

29

Combustion Air and Vent System ....

29

Air Filter(s)

29

Lubrication

30

Condensate Drain Assembly

30

Blower Compartment

30

Heat Exchanger and Burner

 

Maintenance

30

System Operation Information

30

Sequence of Operation

30

Furnace Fails to Operate

31

Location of Major Components

32

Wiring Diagram

33

Installation/Performance

 

Checklist

35

M 3 R L - 060 A - A W

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Return Air Configuration

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Blank - Front

Application

 

 

 

 

 

 

 

 

 

 

 

 

 

T - Top

 

 

 

 

 

 

 

 

 

 

 

Door Color

M-Manufactured Home

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

W - White

 

 

 

 

 

 

 

 

 

 

 

 

 

Furnace Series

 

 

 

 

 

 

 

 

 

 

 

G - Gray

 

 

 

 

 

 

 

 

 

 

Cabinet Dimensions

Comfort Model

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

A - 56" x 19-3/4" x 23-3/4”

 

 

 

 

 

 

 

RL - Condensing Downflow

 

 

 

 

 

 

B - w/Coil Cavity,

 

 

 

 

 

 

 

 

 

 

 

 

 

 

76" x 19-3/4" x 23-3/4"

 

 

 

 

 

 

 

 

 

 

 

 

 

Electrical Code

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Heating Capacity

 

A - 1PH, 60 Hz, 120 VAC

 

 

 

 

 

Input, BTUH (000’)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Table 1. Model Identification

 

 

 

3

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Nordyne M3RL Series installation instructions L 060 a a W, Table of Contents

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.