Lennox Elite EL22XPV Series

©2023 Lennox Industries Inc.
Dallas, Texas, USA
Page 1
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.
WARNING
To prevent serious injury or death:
1. Lock-out/tag-out before performing maintenance.
2. If system power is required (e.g., smoke detector
maintenance), disable power to blower, remove fan
belt where applicable, and ensure all controllers
and thermostats are set to the “OFF” position before
performing maintenance.
3. Always keep hands, hair, clothing, jewelry, tools, etc.
away from moving parts.
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
HEAT PUMP
508302-01
9/2023
Elite
®
Series EL22XPV Units
PACKING LIST
OUTDOOR UNIT
WARRANTY
CERTIFICAT E
RAST 6-PIN
CONNECTORS (2)
General
This EL22XPV 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. The EL22XPV
variable capacity unit may be installed with an S30 com-
municating thermostat or a standard 24VAC non-communi-
cating heat pump thermostat. See eld wiring diagrams for
wiring details. These instructions are intended as a general
guide and do not supersede local codes in any way. Con-
sult 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.
IMPORTANT: Special procedures are required for clean-
ing the all-aluminum coil in this unit. See page 21 in this
instruction for information.
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
SETTING THE UNIT – Clearances
THIS MANUAL MUST BE LEFT WITH THE
HOMEOWNER FOR FUTURE REFERENCE

Lennox Elite EL22XPV Series Specifications

General

SEER Rating	Up to 22
Refrigerant	R-410A
Cooling Stages	Variable
Heating Stages	Variable
Warranty	10-Year Limited Warranty on Covered Components
Climate	All Climates

Summary

Unit Dimensions

Unit Placement Guidelines

Guidelines and considerations for placing the outdoor unit.

System Match-up Requirements

Unit must be matched with AHRI certified indoor coils and systems.

Refrigerant Piping

Line Set Flushing Requirements

Mandates flushing for existing lines with mineral oil due to incompatibility.

Safety Warnings

Covers hazards of oxygen use, refrigerant venting, and PVE oil moisture absorption.

Brazing Procedures

Line Preparation and Gauge Connection

Instructions for cutting, deburring, cap removal, and gauge connection.

Safety Precautions for Brazing

Covers hazards of brazing materials, flux, and fire risk.

Brazing Line Set

Protecting Components During Brazing

Instructions for wrapping valves and using water-saturated cloths.

Brazing and Cooling Steps

Steps for brazing, nitrogen flow, and cooling the joints.

Leak Test and Evacuation

Test For Leaks

Procedure for testing the system for leaks using refrigerant.

System Evacuation

Evacuation Procedure

Steps to evacuate the system to the required vacuum level.

WARNING! Deep Vacuum Operation

Hazards of deep vacuum operation and potential compressor damage.

Electrical Connections

Thermostat Control Options

Overview of S30 and conventional thermostat control methods.

Electrical Safety Warnings

Covers electric shock, fire hazards from aluminum wire, and sizing.

Outdoor Unitary Control

Charge Mode Jumper

Explains the function and operation of the charge mode jumper.

Operation Mode Jumper

Explains the function and selectable modes of the operation mode jumper.

Refrigerant Charge Check

Professional Maintenance

NOTICE! Coil Cleaning

Warnings and procedures for cleaning aluminum coils safely.

General System Test

Procedures for performing a comprehensive system test.

Start-Up and Performance Checklist

Start Up Checks

Checklist items for initial unit start-up.

Cooling Mode Parameters

Key parameters to check during cooling mode operation.

System Refrigerant Charge Checks

Methods for verifying subcooling and approach temperatures.