07/06
504,953M
*2P0706*
*P504953M*
Page 1
2006 Lennox Industries Inc.
Dallas, Texas, USA
RETAIN THESE INSTRUCTIONS
FOR FUTURE REFERENCE
WARNING
Improper installation, adjustment, alteration, ser-
vice or maintenance can cause property damage,
personal injury or loss of life. Installation and ser-
vice must be performed by a qualified installer or
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 vent-
ing of refrigerant (CFC’s, HCFC’s AND HFC’s) as of
July 1, 1992. Approved methods of recovery, recycl-
ing or reclaiming must be followed. Fines and/or in-
carceration may be levied for noncompliance.
INSTALLATION
INSTRUCTIONS
HSXA16
Series Units
CONDENSING UNITS
504,953M
07/06
Supersedes 03/06
Table of Contents
HSXA16 Outdoor Unit
1
. . . . . . . . . . . . . . . . . . . . . . . . . .
Shipping & Packing List
1
. . . . . . . . . . . . . . . . . . . . . . . .
General Information
2
. . . . . . . . . . . . . . . . . . . . . . . . . . .
Unit Dimensions
2
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Setting The Unit
3
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Electrical
3
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Refrigerant Piping
5
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Refrigerant Metering Device
8
. . . . . . . . . . . . . . . . . . . .
Flushing Existing Line Set & Indoor Coil
8
. . . . . . . . . .
Manifold Gauge Set
9
. . . . . . . . . . . . . . . . . . . . . . . . . . .
Service Valves
10
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Leak Testing
11
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Evacuation
11
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Start−Up
12
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Refrigerant Charging
12
. . . . . . . . . . . . . . . . . . . . . . . . . . .
System Operation
14
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Maintenance
15
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Optional Accessories
15
. . . . . . . . . . . . . . . . . . . . . . . . . .
Homeowner Information
15
. . . . . . . . . . . . . . . . . . . . . . . .
Thermostat Operation
16
. . . . . . . . . . . . . . . . . . . . . . . . . .
Start-up & Performance Check List
16
. . . . . . . . . . . . . .
HSXA16 Outdoor Unit
Two−stage HSXA16 outdoor units use HFC−410A refriger-
ant. This unit must be installed with a matching indoor coil
and line set as outlined in the Lennox Engineering Hand-
book. Elite
®
Series HSXA16 outdoor units are designed for
use in thermostatic expansion valve (TXV) systems only
and are not for use with other refrigerant flow control de-
vices. The Lennox Engineering Handbook lists a TXV kit
that must be ordered separately.
Shipping & Packing List
1 − Assembled HSXA16 outdoor unit
2 − Grommets (liquid and vapor line)
1 − Bushing (for low voltage wiring)
Check equipment for shipping damage. If you find any
damage, immediately contact the last carrier.
Litho U.S.A.
