Lennox Elite Series XP13 Units User Manual

05/09 506270−01
*2P0509* *P506270-01*
Page 1
2009 Lennox Industries Inc.
Dallas, Texas, USA
RETAIN THESE INSTRUCTIONS
FOR FUTURE REFERENCE
WARNING
Improper installation, adjustment, alteration,
service or maintenance can cause personal injury,
loss of life, or damage to property.
Installation and service must be performed by a
licensed professional installer (or equivalent) or a
service agency.
CAUTION
Physical contact with metal edges and corners
while applying excessive force or rapid motion can
result in personal injury. Be aware of, and use
caution when working near these areas during
installation or while servicing this equipment.
IMPORTANT
The Clean Air Act of 1990 bans the intentional
venting of refrigerant (CFCs, HFCs, and HCFCs) as
of July 1, 1992. Approved methods of recovery,
recycling or reclaiming must be followed. Fines
and/or incarceration may be levied for
noncompliance.
IMPORTANT
This unit must be matched with an indoor coil as
specified in Lennox’ Engineering Handbook.
Coils previously charged with HCFC−22 must be
flushed.
INSTALLATION
INSTRUCTIONS
Elite
®
Series XP13 Units
HEAT PUMPS
506270−01
05/09
Supersedes 01/09
Table of Contents
Shipping and Packing List 1. . . . . . . . . . . . . . . . . . . . . .
XP13 Heat Pumps 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Unit Dimensions 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
General Information 3. . . . . . . . . . . . . . . . . . . . . . . . . . .
Recovering Refrigerant from Existing System 5. . . . .
Removing Existing Outdoor Unit 6. . . . . . . . . . . . . . . . .
Positioning New Outdoor Unit 6. . . . . . . . . . . . . . . . . . .
Removing and Installing Panels 7. . . . . . . . . . . . . . . . .
New or Replacement Line Set 9. . . . . . . . . . . . . . . . . . .
Brazing Connections 10. . . . . . . . . . . . . . . . . . . . . . . . . . .
Removing Indoor Unit Metering Device 11. . . . . . . . . . .
Flushing the System 12. . . . . . . . . . . . . . . . . . . . . . . . . . .
Installing New Indoor Unit Metering Device 13. . . . . . . .
Testing for Leaks 13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Evacuating the System 15. . . . . . . . . . . . . . . . . . . . . . . . .
Servicing Unit Delivered Void of Charge 16. . . . . . . . . . .
Electrical Connections 17. . . . . . . . . . . . . . . . . . . . . . . . .
Start−Up and Charging Procedures 18. . . . . . . . . . . . . . .
System Operation 18. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Defrost System 22. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Maintenance 23. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Homeowner Information 23. . . . . . . . . . . . . . . . . . . . . . . .
Start−Up and Performance Checklist 26. . . . . . . . . . . . .
Shipping and Packing List
Check the unit for shipping damage and listed times below
are intact. If damaged, or if parts are missing, immediately
contact the last shipping carrier.
1  Assembled XP13 outdoor unit
XP13 Heat Pumps
The XP13 Heat Pumps, which will also be referred to in this
instruction as the outdoor unit, uses HFC−410A
refrigerant. This outdoor unit must be installed with a
matching indoor unit and line set as outlined in the Lennox
XP13 Engineering Handbook.
This outdoor unit is designed for use in systems that use
check thermal expansion valve (CTXV) refrigerant
metering devices.
Litho U.S.A.

Lennox Elite Series XP13 Units Specifications

General

Model	XP13
Type	Heat Pump
Cooling Capacity (BTU/h)	18, 000 - 60, 000
Heating Capacity (BTU/h)	18, 000 - 60, 000
Refrigerant	R-410A
EER Rating	Up to 12.50
Compressor Type	Scroll
Stages	Single-Stage
Warranty	5-Year Limited Parts Warranty

Summary

Retain These Instructions for Future Reference

Safety Warnings and Cautions

General warnings, cautions, and important notes for installation and service.

Unit Dimensions and Parts Arrangement

General Information and Torque Requirements

Using Manifold Gauge Sets

Guidelines for using manifold gauge sets with HFC-410A refrigerant systems.

Operating Service Valves

Procedures for operating liquid and vapor line service valves.

Service Port Access and Valve Operation

Instructions for accessing and operating angle-type and ball-type service ports.

Manifold Gauge Connection Setup

Service Valve Types and Operation

Illustrations and descriptions of angle-type and ball-type service valves.

Recovering Refrigerant from Existing System

Method 1: Without Shut-off Valves

Procedure for recovering HCFC-22 refrigerant when units lack shut-off valves.

Method 2: With Shut-off Valves

Procedure for recovering HCFC-22 refrigerant when units have shut-off valves.

Outdoor Unit Installation: Removal and Positioning

Removing Existing Outdoor Unit

Steps for disconnecting and removing the old outdoor unit.

Positioning and Placement Guidelines

Guidelines for properly positioning the new outdoor unit on slabs or near windows.

Removing and Installing Panels

Unit Elevation and Roof Mounting

Instructions for elevating units using feet extenders and roof mounting.

Panel Installation Procedure

Stabilizing Unit on Uneven Surfaces

Method for stabilizing the unit using brackets and anchors on uneven surfaces.

Line Set Installation and Requirements

New or Replacement Line Set

Information on installing or replacing refrigerant line sets.

Refrigerant Line Set Specifications

Table detailing liquid and suction line sizes for various models.

Line Set Installation Techniques

Procedures for installing line sets horizontally, vertically, and during transitions.

Brazing Connections Procedure

Brazing Safety Precautions

Warnings regarding fire hazards and high pressure gas during brazing.

Indoor Unit Metering Device Replacement

Removing Existing Metering Devices

Procedure for removing HCFC-22 flow control orifice or TXV.

Replacement Parts and Procedures

Details on replacement parts kit 69J46 and fixed orifice removal.

Flushing the System

System Flushing Requirements

Important notes and cautions regarding system flushing with HCFC-22.

Installing New Indoor Metering Device

CTXV Installation Steps

Instructions for installing the CTXV refrigerant metering device.

Testing for Leaks

Leak Detection and Testing Procedure

Procedure for checking line set connections and indoor unit for leaks.

Evacuating the System

System Evacuation Procedure and Requirements

Critical steps for evacuating the system to remove non-condensables.

Servicing Units Delivered Void of Charge

Electrical Requirements and Wiring

Wiring Diagrams and Thermostat Connections

Diagrams for field wiring, thermostat connections, and wire gauge selection.

Start-Up and Charging Procedures

System Testing and Charging

Procedures for testing and charging the HFC-410A refrigerant system.

Calculating Refrigerant Charge

Methods for calculating the total refrigerant charge based on conditions.

Refrigerant Charge Calculation Methods

Weigh-In Method

Procedure for determining refrigerant charge using the weigh-in method.

Subcooling Method

Procedure for determining refrigerant charge using the subcooling method.

System Operation Modes

Service Light, Emergency Heat, and Components

Details on service light, emergency heat function, filter drier, and pressure switches.

Defrost System Overview

Explanation of the defrost system including thermostat and control board.

Routine Maintenance Checks

Defrost Control Timing and Diagnostics

Information on defrost timing pins, compressor delay, time delay, and diagnostic LEDs.

Homeowner Maintenance and Operation

Heat Pump Operation and Extended Power Outage

Characteristics of heat pump operation, including defrost and power outages.

Thermostat Operation and Preservice Checks

Optional Accessories

List of optional accessories that may apply to the unit.

Start-Up and Performance Checklist