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Lennox ELS120S4S

Lennox ELS120S4S
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Page 1
THIS MANUAL MUST BE LEFT WITH THE
BUILDING OWNER FOR FUTURE REFERENCE
WARNING
Improper installation, adjustment, alteration, service
or maintenance can cause property damage, personal
injury or loss of life. Installation and service must be
performed by a licensed professional HVAC installer or
equivalent, or service agency.
IMPORTANT
The Clean Air Act of 1990 bans the intentional venting of
refrigerant (CFCs, HCFCs and HFCs) as of July 1, 1992.
Approved methods of recovery, recycling or reclaiming
must be followed. Fines and/or incarceration may be
levied for noncompliance.
CAUTION
As with any mechanical equipment, contact with sharp
sheet metal edges can result in personal injury. Take
care while handling this equipment and wear gloves and
protective clothing.
INSTALLATION
INSTRUCTIONS
AIR CONDITIONERS
6 - 20 TONS
507743-02
5/2019
Elite
®
ELS Series
6 – 20 Ton
Shipping and Packing List
Check the unit for shipping damage. If damaged or parts
are missing, immediately contact the last shipping carrier.
1 - Assembled outdoor unit
1 - Installation instructions
Outdoor Unit
ELS Series air conditioners, which will also be referred to
in this instruction as the outdoor unit, use HFC-410A re-
frigerant. This outdoor unit must be installed with a match-
ing indoor unit and line set as outlined in the ELS Series
Engineering Handbook.
This outdoor unit is designed for use in thermal expansion
valve (TXV) systems only.
Table of Contents
Shipping and Packing List .............................................1
Outdoor Unit ..................................................................1
Unit Dimensions, Corner Weights and Centers of Gravity ...2
Unit Plumbing Parts Arrangement ..................................5
Model Number Identication ........................................10
Unit Control Box Components Arrangement ................ 11
Rigging the Unit for Lifting ...........................................12
Installation Clearances ................................................13
Line Set .......................................................................13
Electrical Connections ................................................. 13
Refrigerant Charge ...................................................... 19
System Operation ........................................................21
Maintenance ................................................................21

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Lennox ELS120S4S Specifications

General IconGeneral
BrandLennox
ModelELS120S4S
CategoryFan
LanguageEnglish

Summary

INSTALLATION INSTRUCTIONS

Shipping and Packing List

Details contents of shipping package and checks for damage.

Unit Dimensions, Corner Weights, and Centers of Gravity

ELS072 S4 S and ELS090 S4 S Data

Provides dimensional data and weight distribution for specific models.

Unit Plumbing Parts Arrangement

ELS072 S4 S Plumbing Layout

Illustrates the plumbing layout for the ELS072S4S unit.

ELS090 S4 S Plumbing Layout

Illustrates the plumbing layout for the ELS090S4S unit.

Model Number Identification

Brand and Family Identification

Identifies the product brand and family name.

Unit Control Box Components Arrangement

Rigging the Unit for Lifting

Installation Clearances

Line Set and Electrical Connections

Electrical System Setup

Control Wiring and Solenoid Checks

Wiring Diagram for ELS072 S4 S, ELS090 S4 S, ELS120 S4 S

Wiring Diagram for ELS120 S4 D and ELS150 S4 D

Wiring Diagram for ELS180 S4 D and ELS240 S4 D

Refrigerant Charge Procedure

System Charging Steps

Outlines system charging steps and refrigerant addition tables.

Operating Pressure Verification Methods

Details checking pressures and using coil blocking or approach method.

Commercial Approach Temperature Matchups

Single Stage Commercial Pressures

Lists normal operating pressures for single-stage cooling.

Two Stage Commercial Pressures

Lists normal operating pressures for two-stage cooling.

Residential Approach Temperature Matchups

Residential Pressure Tables

Lists normal operating pressures for residential single/two-stage cooling.

System Operation and Maintenance

Routine Maintenance Procedures

Lists maintenance checks for outdoor unit, indoor coil, and indoor unit.

Start-Up and Performance Checklist

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