© 2011 American Standard Heating & Air Conditioning
Since the manufacturer has a policy of continuous product
and product data improvement, it reserves the right to
change design and specifications without notice.
11-BC08D1-7
These instructions do not cover all variations in systems
nor provide for every possible contingency to be met in
connection with installation. All phases of this installa-
tion must comply with NATIONAL, STATE AND LOCAL
CODES. Should further information be desired or should
particular problems arise which are not covered sufficiently for
the purchaser’s purposes, the matter should be referred to your
installing dealer or local distributor.
A. GENERAL
This information is intended
for use by individuals possessing adequate backgrounds
of electrical and mechanical experience. Any attempt to
repair a central air conditioning product may result in
personal injury and or property damage. The manufac-
turer or seller cannot be responsible for the interpreta-
tion of this information, nor can it assume any liability
in connection with its use.
The following instructions cover 4A6H3 Heat Pump Units.
NOTE: AMERICAN STANDARD HAS ALWAYS REC-
OMMENDED INSTALLING AMERICAN STANDARD
APPROVED MATCHED INDOOR AND OUTDOOR SYS-
TEMS.
THE BENEFITS OF INSTALLING APPROVED INDOOR
AND OUTDOOR SPLIT SYSTEMS ARE MAXIMUM EF-
FECIENCY, OPTIMUM PERFORMANCE AND THE BEST
OVERALL SYSTEM RELIABILITY.
These units use R-410A refriger-
ant which operates at 50 to 70% higher pressures than R-22.
Use only R-410A approved service equipment. Refrigerant
cylinders are painted a “Rose” color to indicate the type
of refrigerant and may contain a “dip” tube to allow for
charging of liquid refrigerant into the system. All R-410A
systems use a POE oil that readily absorbs moisture from
the atmosphere. To limit this “hygroscopic” action, the
system should remain sealed whenever possible. If a
system has been open to the atmosphere for more than 4
hours, the compressor oil must be replaced. Never break a
vacuum with air and always change the driers when open-
ing the system for component replacement. For specific
handling concerns with R-410A and POE oil, reference
Retrofit Bulletin SSC-APG011-EN.
Check for transportation damage after unit is uncrated. Report
promptly, to the carrier, any damage found to the unit.
To determine the electrical power requirements of the unit, refer
to the nameplate of the unit. The electrical power available must
agree with that listed on the nameplate.
The Heat Pump has been designed and manufactured to with-
stand and operate in severe winter conditions. However, there
are precautionary steps which should be taken at the time of
installation which will help assure the efficient operation of
the unit.
Heat Pumps
INSTALLER'S GUIDE
ALL phases of this installation must comply with NATIONAL, STATE AND LOCAL CODES
Models:
4A6H4
IMPORTANT — This Document is customer property and is to remain with this unit. Please return to service information pack
upon completion of work.
CAUTION
!
UNIT CONTAINS R-410A REFRIGERANT!
R-410A OPERATING PRESSURE EXCEEDS THE
LIMIT OF R-22. PROPER SERVICE EQUIPMENT IS
REQUIRED. FAILURE TO USE PROPER SERVICE
TOOLS MAY RESULT IN EQUIPMENT DAMAGE OR
PERSONAL INJURY.
SERVICE
USE ONLY R-410A REFRIGERANT AND
APPROVED POE COMPRESSOR OIL.
5 FT. ABOVE UNIT-UNRESTRICTED
1
Available in French Canadian (FC)
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