06/09 505,331M
*2P0609* *P505331M*
Page 1
E2009 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.
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