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504,668M
*P504668M*
02/04
*2P0204*
2001 Lennox Industries Inc
.
Dallas, Texas
HSXA15 Outdoor Unit
HSXA15 outdoor units use R410A which is an ozone friend-
ly HFC refrigerant. This unit must be installed with a match-
ing indoor coil and line set as outlined in the Lennox Engi-
neering Handbook. HSXA15 outdoor units are designed for
use in expansion valve systems only. They are not designed
to be used with other refrigerant flow control devices. An ex-
pansion valve and filter drier approved for use with R410A
have been shipped with the unit. These components must
be installed prior to unit operation.
Failure to install the
provided filter drier will void the warranty.
Shipping & Packing List
1 − Assembled HSXA15 outdoor unit
1 − Filter/Drier (approved for use with R410A systems)
1 − Expansion valve (approved for use with R410A)
2 − Grommets (for liquid and suction lines)
1 − Bushing (for low voltage wiring)
Check equipment for shipping damage. If you find any
damage, immediately contact the last carrier.
WARNING
Improper installation, adjustment, alteration, service
or maintenance can cause property damage, person-
al injury or loss of life. Installation and service must
be performed by a qualified installer or service
agency.
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
HSXA15 SERIES UNITS
CONDENSING UNITS
504,668M
02/04
Supersedes 12/02
Table of Contents
HSXA15 Outdoor Unit
1
. . . . . . . . . . . . . . . . . . . . . . . . . . .
Shipping & Packing List
1
. . . . . . . . . . . . . . . . . . . . . . . . .
General Information
1
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Unit Dimensions
2
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Parts Arrangement
3
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Setting The Unit
3
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Electrical
4
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Refrigerant Piping
5
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Flushing Existing Line Set & Indoor Coil
6
. . . . . . . . . . .
Manifold Gauge Set
8
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Service Valves
8
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Leak Testing
8
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Evacuation
9
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Start−Up
10
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Charging
10
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Maintenance
13
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Optional Accessories
13
. . . . . . . . . . . . . . . . . . . . . . . . . .
Start−Up & Performance Check List
13
. . . . . . . . . . . . . .
Retain These Instructions
For Future Reference
General Information
These instructions are intended as a general guide and do
not supersede local codes in any way. Consult authorities
who have jurisdiction before installation.
WARNING
This product and/or the indoor unit it is matched with
may contain fiberglass wool.
Disturbing the insulation during installation, mainte-
nance, or repair will expose you to fiberglass wool
dust. Breathing this may cause lung cancer. (Fiber-
glass wool is known to the State of California to
cause cancer.)
Fiberglass wool may also cause respiratory, skin,
and eye irritation.
To reduce exposure to this substance or for further
information, consult material safety data sheets
available from address shown below, or contact your
supervisor.
Lennox Industries Inc.
P.O. Box 799900
Dallas, TX 75379−9900
Litho U.S.A.
