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Corp. 0922−L10
TSA*S4
Service Literature
10−2009
M and T Voltages
T−CLASS
t
TSA*S4 M and T Voltage
Units
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.
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.
WARNING
Electric Shock Hazard. Can cause injury or death.
Unit must be grounded in accordance with national
and local codes.
Line voltage is present at all components when unit
is not in operation on units with single-pole
contactors. Disconnect all remote electric power
supplies before opening access panel. Unit may
have multiple power supplies.
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.
TABLE OF CONTENTS
Specifications and Electrical Data
. . . . . . . . . . . . . . . . . .
Unit Dimensions
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Typical Control Panel Parts Arrangement
. . . . . . . . . . .
Typical Unit Parts Arrangement
. . . . . . . . . . . . . . . . . . .
Model Number Identification
. . . . . . . . . . . . . . . . . . . . . .
Unit Components
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
General Information
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating Gauge Set and Service Valves
. . . . . . . . . . .
Recovering Refrigerant from Existing System
. . . . . .
New Outdoor Unit Placement
. . . . . . . . . . . . . . . . . . . .
New or Replacement Line Set
. . . . . . . . . . . . . . . . . . . .
Metering Devices and Flushing the System
. . . . . . . .
Testing for Leaks
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Evacuating
the System
. . . . . . . . . . . . . . . . . . . . . . . . . .
Electrical Connections
. . . . . . . . . . . . . . . . . . . . . . . . . .
Servicing Unit Delivered Void of Charge
. . . . . . . . . . .
Unit Start−Up
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
System Refrigerant
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
System Operation
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Maintenance
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Start−Up and Performance Checklist
. . . . . . . . . . . . . .
The TSA*S4 is a commercial split-system condensing
unit with SEER ratings up to 14.80.
All major components (indoor blower and coil) must be
matched according to Lennox recommendations for the
compressor to be covered under warranty. Refer to the
Engineering Handbook for approved system matchups.
Information contained in this manual is intended for use by
qualified service technicians only. All specifications are
subject to change. This manual is divided into sections
which discuss the major components, refrigerant
system, charging procedure, maintenance and
operation sequence.
IMPORTANT
This model is designed for use in expansion valve systems only. An
indoor expansion valve approved for use with
HFC−410A
refrigerant
must be ordered separately, and installed prior to operating the system.
