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American Standard 2A7A8048A User Manual

American Standard 2A7A8048A
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Application Guide
ALG18-APG01-EN
American Standard Allegiance and Heritage 18
dual compressor cooling units and heat pumps
Low Outdoor Operating Temperature
Unit Mounting
Minimum Clearances
Refrigerant Piping Limitations
American Standard Allegiance / Heritage 18
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American Standard 2A7A8048A Specifications

General IconGeneral
TypeAir Conditioner
BrandAmerican Standard
Model Number2A7A8048A
Cooling Capacity4 Tons
Cooling Capacity BTU48000 BTU
SEER Rating18
RefrigerantR-410A
Voltage208/230V
Phase1
Heating CapacityNot Applicable
HSPF RatingNot Applicable
Sound Level (Outdoor)74 dB

Summary

Section I - Off Season Cooling Operation

SECTION II - Unit Mounting

Section III - Minimum Operating Clearances

Single Unit Corner Installation Clearances

Specifies clearances for a single unit in a corner installation.

Multiple Units Corner Installation Clearances

Details clearances for multiple units adjacent to corner walls.

Single Unit Fenced Corner Installation Clearances

Outlines clearances for a single unit in a fenced corner setting.

Multiple Units Fenced Corner Installation Clearances

Provides clearances for multiple units in a fenced corner configuration.

Single Unit Adjacent Wall Installation Clearances

Defines clearances for a single unit next to an adjacent wall.

Multiple Units Pad/Rooftop Installation Clearances

Specifies clearances for multiple units on a pad or rooftop.

Multiple Units Open Top Installation Clearances

Details clearances for multiple units with open top installations.

Fence Construction Clearances

Details requirements for fence construction around units for airflow.

Windshield Requirements

Explains when windshields are needed for low ambient operation.

Electrical Code Information

Allegiance / Heritage 18 Unit Dimensions

Section IV - Refrigerant Piping

Refrigerant Piping Purpose

Explains the function of liquid and gas refrigerant lines.

Refrigerant Piping Limitations

Details the maximum allowable lengths for refrigerant lines.

Refrigerant Piping Explanation

Provides explanations for line length effects on system operation.

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