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Lennox MLA Series User Manual

Lennox MLA Series
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Page #6 background image
6
System Clearances
Outdoor Unit
24 (610)
Air Outlet
Air Inlet
24
(610)
12
(305)
79
(2007)
1
12
(305)
1
Minimum rear clearance can be 6 inches (152 mm) when mounted on brackets
and with no obstructions on the other three sides.
Figure 3. Outdoor Unit Clearances - Inches (mm)
Indoor Unit
FRONT VIEW
SIDE VIEW
4
(102)
WALL
SUPPLY
AIR
40 (1016)
(Service
Clearance
Front of Unit)
Unit Flush with Wall
4
(102)
WALL
4
(102)
FLOOR
6
(152)
Figure 4. Indoor Unit Clearances - Inches (mm)
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Lennox MLA Series Specifications

General IconGeneral
BrandLennox
ModelMLA Series
CategoryAir Conditioner
LanguageEnglish

Summary

General Installation Overview

Use of Mini-Split System During Construction

Guidance on operating mini-split systems during construction phases to prevent damage.

Included Parts and Accessories

Optional Accessories

List of optional components available for the system.

Indoor / Outdoor Unit Match-Ups

Information on compatible indoor and outdoor unit combinations.

Model Number Identification

Typical Single-Zone System Components

System Dimensions

System Clearances

Torque Requirements for Caps and Fasteners

Indoor Unit Installation

Unit Placement Considerations

Guidelines for selecting the optimal location for the indoor unit, avoiding hazards.

Floor Installation

Instructions for mounting the indoor unit on the floor, ensuring stability and clearances.

Indoor Unit Condensate Piping Connections

Outdoor Unit Installation

Placement Considerations

Factors to consider when positioning the outdoor unit to avoid noise and environmental issues.

Direct Sunlight, Rain, Snow and Ice Protection

Recommendations for protecting the outdoor unit from direct sun, rain, snow, and ice.

Prevailing Winds Protection

Buried Refrigerant Pipe Protection

Securing the Outdoor Unit

Slab or Roof Mounting

Guidelines for securing the outdoor unit onto a slab or roof structure.

Refrigerant Piping Connections

Making Connections (Male to Female Connection)

Step-by-step guide for connecting refrigerant lines using flare fittings.

Flare Nut Torque Recommendations

Specifications for tightening flare nuts to ensure leak-free refrigerant connections.

Leak Test and Evacuation

Leak Test Procedure

Procedure for testing the refrigerant system for leaks using nitrogen.

Triple Evacuation Procedure

Multi-stage process to evacuate the system to the required vacuum level.

Wiring Connections

Outdoor Unit Wiring

Instructions for making electrical connections to the outdoor unit.

Indoor Unit Wiring

Instructions for making electrical connections to the indoor unit.

Single Zone Installation Wiring Requirements

Function of Switches

Auto-Restart Function Setup

How to configure the auto-restart function using DIP switches.

Down Louver Setting

How to set the down louver position using DIP switches.

Unit Start-Up

Adding Refrigerant for Longer Line Set

Troubleshooting

Test Run

Procedure for performing a test run to verify system functionality.

Dry Mode Operation (Dehumidification)

User Guide Features

Default Settings

Describes the system's default settings after a power failure.

Auto-Restart

Explains how the system restarts after a power interruption.

Louver Angle Memory Function

Details the function that remembers the louver position.

Refrigerant Leak Detection System

How the system indicates a refrigerant leak.

Manual Operations

How to operate the unit using the indoor unit's control panel.

Adjusting Airflow Direction

How to Clean the Air Filter

Error Codes

Optional Programmable Wired Controller

Programmable Controller Connection

Instructions for connecting the programmable wired controller.

Non-Programmable Controller Compatibility

Information on the incompatibility with a non-programmable wired controller.

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