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Corp. 0922−L10
TSA*S4
Service Literature
10−2009
M and T Voltages
T−CLASSt
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 2. . . . . . . . . . . . . . . . . .
Unit Dimensions 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Typical Control Panel Parts Arrangement 4. . . . . . . . . . .
Typical Unit Parts Arrangement 5. . . . . . . . . . . . . . . . . . .
Model Number Identification 5. . . . . . . . . . . . . . . . . . . . . .
Unit Components 6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
General Information 8. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating Gauge Set and Service Valves 8. . . . . . . . . . .
Recovering Refrigerant from Existing System 10. . . . . .
New Outdoor Unit Placement 11. . . . . . . . . . . . . . . . . . . .
New or Replacement Line Set 12. . . . . . . . . . . . . . . . . . . .
Metering Devices and Flushing the System 15. . . . . . . .
Testing for Leaks 16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Evacuating the System 17. . . . . . . . . . . . . . . . . . . . . . . . . .
Electrical Connections 18. . . . . . . . . . . . . . . . . . . . . . . . . .
Servicing Unit Delivered Void of Charge 22. . . . . . . . . . .
Unit Start−Up 22. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
System Refrigerant 22. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
System Operation 27. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Maintenance 27. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Start−Up and Performance Checklist 28. . . . . . . . . . . . . .
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.
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