Lennox Elite EL17XC1-036-230A User Manual

©2022 Lennox Industries Inc.
Dallas, Texas, USA
Page 1
THIS MANUAL MUST BE LEFT WITH THE
HOMEOWNER FOR FUTURE REFERENCE
General
This EL17XC1 outdoor air conditioner with all-aluminum
coil is designed for use with HFC-410A refrigerant only.
This unit must be installed with an approved indoor air han-
dler or coil. For AHRI Certied system match-ups and ex-
panded ratings, visit www.LennoxPros.com.
These instructions are intended as a general guide and do
not supersede local codes in any way. Consult authorities
having jurisdiction before installation.
NOTICE!
Charging information is given on the charging
procedure sticker on the unit access panel. For more in-
depth information, consult the Installation and Service
Procedures manual on LennoxPros.com or through the
Technical Support department at 800-453-6669.
INSTALLATION
INSTRUCTIONS
AIR CONDITIONER
508253-01
3/2022
Elite
®
Series EL17XC1 Units
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.
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.
IMPORTANT: Special procedures are required for clean-
ing the all-aluminum coil in this unit. See page 15 in this
instruction for information.
STEP 1 – SETTING THE UNIT – Clearances
See
NOTES
See NOTES
NOTES:
Service clearance of 30 in. (762 mm) must be maintained on one of
the sides adjacent to the control box.
Clearance to one of the other three sides must be 36 in (914 mm).
Clearance to one of the remaining two sides may be 12 in. (305mm)
and the final side may be 6 in.(152 mm).
A clearance of 24 in. (610 mm) must be maintained between two units.
48 in. (1219 mm) clearance required on top of unit.
See
NOTES
See NOTES
Control
Box
NOTICE: Specific applications may require adjustment of the listed installation clearances to provide protection for
the unit from physical damage or to avoid conditions which limit operating efficiency. (Example: Clearances may
have to be increased to prevent snow or ice from falling on the top of the unit. Additional clearances may also be
required to prevent air recirculation when the unit is installed under a deck or in another tight space.)
FIGURE 1

Lennox Elite EL17XC1-036-230A Specifications

General

Type	Air Conditioner
Model	EL17XC1-036-230A
Cooling Capacity	36, 000 BTU
SEER Rating	17
Refrigerant	R-410A
Compressor Type	Scroll
Energy Efficiency Ratio (EER)	12.5
Voltage	230V
Phase	1
Stages	Single

Summary

General Unit Information

General Safety Warnings

Highlights risks of property damage, injury, or death from improper installation, alteration, or service.

Refrigerant Piping Preparation

Flushing Existing Lines and Coils

Details the process for flushing existing refrigerant lines and indoor coils before installing new units.

Metering Device Removal and Flushing

Fixed Orifice Removal

Outlines the procedure for removing a fixed orifice metering device from an uncased coil.

Expansion Valve Removal

Details the steps for removing an existing expansion valve from an uncased coil.

Line Set Flushing Process

Describes the process of flushing the line set with HCFC-22 and recovering the refrigerant.

Brazing Refrigerant Lines

Line Preparation for Brazing

Covers cutting, deburring refrigerant lines, and removing service valve caps and cores prior to brazing.

Gauge Set Connection for Brazing

Details connecting the manifold gauge set for brazing, including nitrogen flow setup.

Brazing Service Valves and Lines

Protecting Service Valves During Brazing

Instructs on wrapping service valves with water-saturated cloths to protect them during brazing.

Brazing the Line Set

Details the process of brazing the line set to service valves, emphasizing cooling and protection.

Indoor Expansion Valve Installation

Expansion Valve Mounting

Provides detailed instructions for installing the expansion valve unit, including tightening and sealing.

Sensing Bulb Installation

Guides the installation of the vapor line sensing bulb, emphasizing correct orientation and contact.

Leak Testing the System

Connecting Gauge Set for Leak Test

Explains how to connect the HFC-410A manifold gauge set to the system for leak testing.

Performing the Leak Test

Evacuating the Refrigerant System

Gauge Set Connection for Evacuation

Evacuation Procedure

Electrical Connections

Circuit Sizing and Disconnect Switch

Electrical Safety Warnings

Unit Start-Up Procedures

Pre-Start Up Checks

Service Valve Operation

System Charge and Component Checks

Refrigerant Charge Adjustment

Start-Up and Performance Checklist