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© 2005 American Standard Inc.  All Rights Reserved

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-AC18D1-2

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

▲ 

WARNING:

 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.

NOTE:  AMERICAN STANDARD HAS ALWAYS RECOM-
MENDED INSTALLING AMERICAN STANDARD AP-
PROVED 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 avail-
able 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.
Clearance 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 directly 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.

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:

2A7A3018-060A1000A

IMPORTANT — This Document is customer property and is to remain with this unit.  Please return to service information pack
upon completion of work.

Summary of Contents for 2A7A3018-060A1000A

Page 1: ...t 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 p...

Page 2: ...vide a pull thru hole of sufficient size to allow both liquid and gas lines 5 Be sure the tubing is of sufficient length 6 Uncoil the tubing do not kink or dent 7 Route the tubing making all required...

Page 3: ...rom manifold gauge to gas and liquid line pressure taps NOTE Unnecessary switching of hoses can be avoided and complete evacuation of all lines leading to sealed system can be accomplished with manifo...

Page 4: ...ed Leaving this pin open results in the normal mode of operation 2 TST Test Shorting TEST_COMMON to this pin speeds up all defrost board timings 3 FRC_DFT Forced Defrost Short TEST_COMMON to this pin...

Page 5: ...ermostat LEGEND FACTORY WIRING FIELD WIRING L TROUBLESHOOTING CHART REFRIGERANT CIRCUIT Liquid Pressure Too High Liquid Pressure Too Low Suction Pressure Too High Suction Pressure Too Low Liquid Refri...

Page 6: ...optimum performance and the best overall system reliability The following charging methods are therefore prescribed for systems with indoor TXVs 1 Subcooling in the cooling mode is the only recommend...

Page 7: ...5 2 5 8 210 8 1 4 57 2 1 4 457 18 2A7A3030A 3 2 832 32 3 4 829 32 5 8 756 29 3 4 3 4 5 16 137 5 3 8 86 3 3 8 210 8 1 4 79 3 1 8 508 20 2A7A3036A 3 2 832 32 3 4 829 32 5 8 756 29 3 4 7 8 3 8 137 5 3 8...

Page 8: ...ked 2 Suction Lines and Fittings properly insulated 3 Have all Refrigerant Lines been secured and isolated properly 4 Have passages through masonry been sealed If mortar is used prevent mortar from co...

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