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American Standard 2A7A8060A User Manual

American Standard 2A7A8060A
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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 2A7A8060A Specifications

General IconGeneral
Model2A7A8060A
TypeAir Conditioner
Cooling Capacity60, 000 BTU/H
SEER Rating18
Phase1
RefrigerantR-410A
SEER18
HSPFNot Applicable
Refrigerant TypeR-410A
Operating Voltage208/230 V
Sound Level (Outdoor Unit)74 dB
Voltage208/230
Tonnage5 Ton

Summary

Off Season Cooling Operation

Required Accessories for Temperature Operation

Details accessories needed for specific outdoor temperatures.

Evaporator Defrost Control Kits (EDC)

Information on EDC kits for cooling and heat pumps.

Compressor Heater and Start Kits

Mentions compressor crankcase heater and hard start kits.

Unit Mounting

General Mounting Instructions

Procedures for mounting and securing the unit base.

Base Pan Mounting Hole Locations

Diagram showing base pan mounting hole locations and dimensions.

Minimum Operating Clearances

Clearance Considerations

Discusses airflow, service access, codes, and design temperatures.

Single Unit Installation Clearances

Clearances for single units in a corner based on ambient temperature.

Multiple Unit Installation Clearances

Clearances for multiple units in a corner based on ambient temperature.

Fenced Corner Clearances

Clearances for single units in a fenced corner based on ambient temp.

Adjacent Wall Clearances

Clearances for a single unit next to one wall based on ambient temp.

Pad and Rooftop Clearances

Clearances for multiple units on a pad or rooftop.

Fence Construction and Windshields

Guidelines for fence construction and windshield requirements.

Electrical Code Information

National Electric Code (NEC) Working Clearances

Details NEC requirements for service area working space around electrical equipment.

Unit Dimensions and Airflow

Outdoor Unit Airflow Table

Table showing CFM for Allegiance/Heritage cooling and heat pump units.

Unit Dimensions

Table listing dimensions (A, B, C) for Allegiance/Heritage units.

Refrigerant Piping

Refrigerant Piping Purpose and Limitations

Explains liquid and gas lines and sets line length limitations.

Refrigerant Piping Explanation

Details the effects of line length on subcooling and oil return.

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