2
while not restricting airflow and 
maintaining ease of coil cleaning. Finally, 
all screws on cabinet exterior are ceramic 
coated for a long-lasting, rust-resistant, 
quality appearance..
 
High Efficiency Performance
 
— Is 
delivered through a combination of 
features including Carrier’s Puron 
refrigerant, scroll compressor, and 
advanced heat transfer surfaces. Efficiency 
ratings are 14 SEER (Seasonal Energy 
Efficiency Ratio) with enhanced ratings of 
up to 15.75 SEER. Sophisticated heat 
transfer surfaces utilized in Carrier’s 
38TSA design allow heat to easily be 
transferred to the outdoor air and requires 
less energy. The scroll compressor found in 
the 38TSA design performs quietly and 
adds to the overall efficiency of the system. 
Finally, Carrier’s Puron refrigerant 
operates more efficiently than R-22 
refrigerant found in other systems. The 
efficiency levels provided by the 38TSA 
provide end users with lower costs of 
operation than traditional air conditioning 
systems. 
 
Assured Future Service
 
— By utilizing 
the environmentally sound refrigerant, 
Puron®, 38TSA models will remain 
serviceable well into the future. The Clean 
Air Act of 1990 has placed a cap on 
production of most other refrigerants 
which has scheduled reductions beginning 
in 2004. The resulting cap in production 
ultimately results in a complete ban on 
many other refrigerants in new equipment 
by the year 2010. These changes, required 
by federal law, mean the supply of other 
refrigerants may be limited in the near 
future making Puron® the correct choice 
when considering long term serviceability.
 
Highly Reliable Performance
 
— Is 
delivered through the superior design of 
the system and componentry. The 
reliability of the Performance™ 14 
models have been proven to provide the 
lowest incidence of warranty service of 
any product in the Carrier family. Long 
term reliability is assured through the use 
of both high and low pressure switches 
which will not allow the system to operate 
in the event of a significant change in 
operating pressure. In doing this, the 
system is protected from damage if an 
unusual condition arises. Finally, Carrier 
includes a special liquid line filter drier 
designed to trap moisture and 
contaminants which could otherwise 
shorten the life of the system.
 
Carrier’s Silencer System
 
— Is one of 
the most sought after features of the 
38TSA family. Extremely low operating 
sound is the result of special attention to the 
air moving through the outdoor unit, a 
specially designed sound enclosure 
surrounding the compressor, and an 
exclusive laminated plate beneath the 
compressor to eliminate sound 
transmission to the rest of the system.
 
Application Versatility
 
— Carrier’s 
systems utilizing Puron® refrigerant have 
the same application guidelines as other 
systems. Applications which include long 
line sets (50 to 175 ft) or applications 
which require the system to operate at low 
outdoor temperatures (below 55°F, 
12.8°C) are approved under Carrier’s 
standard guidelines.
 
Carrier Coils and Fan Coils to Complete 
the System
 
— Carrier specially designs 
both the outdoor product and indoor coil 
products to operate with assured reliability 
and performance. A wide range of indoor 
coil options are listed in the ratings section 
of this publication.
 
Special Protective Devices
 
— High- and 
low-pressure switches and internal 
protection in the compressor including 
temperature and current sensing overloads 
prevent operation under potentially 
damaging circumstances. A special liquid 
line filter drier designed to trap nearly 4 
times the volume of contaminants of 
standard driers provides superior protection 
from moisture trapped in the system.
 
Electrical Range
 
— 208/230v, single 
phase.
 
Wide Range of Sizes
 
—Available in six 
sizes: 2 through 5 tons.
 
Totally Enclosed Fan Motor
 
—
Protected from adverse weather 
conditions.
 
Unit Design
 
— Enhanced copper and 
aluminum heat transfer surfaces with 
vertical air discharge to direct air up and 
away from the area.
 
External Service Valves
 
— Both service 
valves are back seating type valves which 
are externally located. These unique valves 
allow service technicians to evacuate or 
charge the system in less time than 
standard service valves.
 
Easy Serviceability
 
— Easy removal of 
panels provides access to both electrical 
and refrigerant carrying components, 
simplifying installation and service. All 
models are equipped with a compressor 
terminal plug.
 
Agency Approvals
 
— 38TSA models 
are listed with UL (U.S. and Canada), ARI, 
and CEC. Special endorsements have also 
been awarded these products by Energy 
Star® which recognizes energy efficient 
products.
 
Limited Warranty
 
—A 10-year 
limited warranty on compressor and 
5-year limited warranty on parts.
 
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CERTIFICATION APPLIES ONLY WHEN THE
COMPLETE SYSTEM IS LISTED WITH ARI.
REGISTERED QUALITY SYSTEM
*Refer to the combination ratings in the Product Data Digest for system combinations meeting ENERGY STAR® efficiency standards.
As an ENERGY STAR
®
 partner, Carrier Corporation has 
determined that this product meets the ENERGY 
STAR
®
 guidelines for energy efficiency.
*