© 2008 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-AC14D1-6
These instructions do not cover all variations in systems nor
provide for every possible contingency to be met in connec-
tion with installation. All phases of this installation 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
▲
WARNING:
This information is intended
for use by individuals possessing adequate backgrounds of
electrical and mechanical experience. Any attempt to re-
pair a central air conditioning product may result in
personal injury and or property damage. The manufac-
turer or seller cannot be responsible for the interpretation
of this information, nor can it assume any liability in
connection with its use.
NOTE: THE MANUFACTURER HAS ALWAYS RECOM-
MENDED INSTALLING AMERICAN STANDARD HEATING
AND AIR CONDITIONING APPROVED MATCHED INDOOR
AND OUTDOOR SYSTEMS.
THE BENEFITS OF INSTALLING APPROVED MATCHED
SYSTEMS ARE MAXIMUM EFFICIENCY, OPTIMUM PER-
FORMANCE AND BEST OVERALL SYSTEM RELIABILITY.
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.
B. LOCATION AND PREPARATION OF THE UNIT
1. When removing unit from the pallet, notice the tabs on the
basepan. Remove tabs by cutting with a sharp tool as shown in
Figure 2 (see page 2).
2. The unit should be set on a level support pad at least as large
as the unit base pan, such as a concrete slab. If this is not the
application used please reference ALG-APG0*-EN (*latest revi-
sion number).
3. The support pad must NOT be in direct contact with any
structure. Unit must be positioned a minimum of 12" from any
wall or surrounding shrubbery to insure adequate airflow. Clear-
ance must be provided in front of control box (access panels) & any
other side requiring service access to meet National Electrical
Code. Also, the unit location must be far enough away from any
structure to prevent excess roof run-off water from pouring di-
rectly on the unit. When choosing the location of the unit(s), sound
transmission through air and refrigerant lineset should be taken
into consideration. It is recommended to locate unit(s) away from
areas (bedrooms, etc.) where such sound could be objectionable.
4. The top discharge area must be unrestricted for at least
five (5) feet above the unit.
5. When the outdoor unit is mounted on a roof, be sure the roof
will support the unit’s weight. Properly selected isolation is
recommended to prevent transmission to the building structure.
6. The maximum length of refrigerant lines from outdoor to
indoor unit should NOT exceed sixty (60) feet.
7. If outdoor unit is mounted above the air handler, maximum lift
should not exceed twenty-five (25) feet (suction line). If air handler
is mounted above condensing unit, maximum lift should not
exceed twenty-five (25) feet (liquid line).
8. Locate and install indoor coil or air handler in accordance with
instruction included with that unit.
NOTE: Refer to “Refrigerant Piping Software” Pub.
No. 32-3312-0*, and “Refrigerant Piping Manual” Pub.
No. 32-3009-0* (the position of the * denotes latest revision
number).
C. INSTALLING REFRIGERANT LINES
▲
CAUTION:
If using existing refrigerant lines
make certain that all joints are brazed, not soldered.
Condensing units have provisions for braze connections.
Pressure taps are provided on the service valves of outdoor unit for
compressor suction and liquid pressures.
Condensing Units
INSTALLER'S GUIDE
ALL phases of this installation must comply with NATIONAL, STATE AND LOCAL CODES
5 FT.
ABOVE UNIT —
UNRESTRICTED
1
Models:
2A7A8 with AccuLink
™
and Charge Assist
™
IMPORTANT —
This Document is
customer property
and is to remain with this unit. Please return to service information pack
upon completion of work.
