06/09
505,331M
*2P0609*
*P505331M*
Page 1
E
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
This unit must be matched with an indoor coil as
specified in Lennox’ Engineering Handbook.
Coils previously charged with HCFC−22 must be
flushed.
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.
INSTALLATION
INSTRUCTIONS
Dave Lennox
Signature
®
Collection XP19
Series
Units
HEAT PUMPS
505,331M
06/09
Supersedes 05/09
Table of Contents
Shipping and Packing List
1
. . . . . . . . . . . . . . . . . . . . . .
Unit Dimensions
2
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
XP19 Heat Pumps
2
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
General Information
2
. . . . . . . . . . . . . . . . . . . . . . . . . . .
Recovering Refrigerant from Existing System
4
. . . . .
Removing Existing Outdoor Unit
5
. . . . . . . . . . . . . . . . .
Positioning New Outdoor Unit
5
. . . . . . . . . . . . . . . . . . .
Removing Panels
6
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
New or Replacement Line Set
8
. . . . . . . . . . . . . . . . . . .
Brazing Connections
9
. . . . . . . . . . . . . . . . . . . . . . . . . . .
Removing Indoor Unit Metering Device
10
. . . . . . . . . . .
Flushing the System
11
. . . . . . . . . . . . . . . . . . . . . . . . . . .
Installing New Indoor Unit Metering Device
12
. . . . . . . .
Testing for Leaks
12
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Evacuating the System
14
. . . . . . . . . . . . . . . . . . . . . . . . .
Servicing Unit Delivered Void of Charge
15
. . . . . . . . . .
Electrical Connections
16
. . . . . . . . . . . . . . . . . . . . . . . . .
Start−Up and Charging Procedures
16
. . . . . . . . . . . . . . .
System Operations
21
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Lennox System Operation Monitor (LSOM)
21
. . . . . . .
Defrost System
24
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Maintenance
29
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Two−Stage Compressor Check−out
30
. . . . . . . . . . . . . . .
Homeowner Information
30
. . . . . . . . . . . . . . . . . . . . . . . .
Field Operational Checklist
32
. . . . . . . . . . . . . . . . . . . . .
Start−up and Performance Checklist
32
. . . . . . . . . . . . . .
Shipping and Packing List1
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 outdoor unit.
1 Bag assembly which contains the followings:
1 Bushing (for low voltage wiring
2 Isolation grommets for liquid and suction lines
ISOLATION GROMMETS (2)
BUSHING (1)
Figure 1. Bag Assembly (Parts)
Litho U.S.A.
