Armstrong Air Conditioning 4SCU13LE Series User Manual

# 48387H005 Page 1
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INSTALLATION AND MAINTENANCE
INSTRUCTIONS
4SCU13LE Series
Split System Air Conditioner
TABLE OF CONTENTS
INSTALLATION ...................................... 2
START-UP ............................................ 13
OPERATION ........................................ 17
MAINTENANCE ................................... 17
CONNECTION DIAGRAM ................... 19
WARRANTY ......................................... 20
Installation and servicing of air conditioning
equipment can be hazardous due to internal
refrigerant pressure and live electrical com-
ponents. Only trained and qualified service
personnel should install or service this equip-
ment. Installation and service performed by
unqualified persons can result in property
damage, personal injury, or death.
WARNING
Risk of electrical shock. Disconnect all
remote power supplies before installing or
servicing any portion of the system. Failure
to disconnect power supplies can result in
property damage, personal injury, or death.
WARNING
The equipment covered in this manual is to be installed by trained and experienced
service and installation technicians. Improper installation, modification, service, or
use can cause electrical shock, fire, explosion, or other conditions which may cause
personal injury, death, or property damage. Use appropriate safety gear including
safety glasses and gloves when installing this equipment.
WARNING
Manufactured By
A.A.C.
A Lennox International Inc. Company
421 Monroe Street
Bellevue, OH 44811
*48387H005*
Sharp metal edges can cause injury. When
installing the unit, use care to avoid sharp
edges.
WARNING

Armstrong Air Conditioning 4SCU13LE Series Specifications

General

SEER Rating	Up to 13
Refrigerant	R-410A
Type	Air Conditioner
Series	4SCU13LE Series
Compressor Type	Single Stage
Cooling Capacity	1.5 to 5 tons
Operating Voltage	208/230V
Phase	Single
Unit Weight (Outdoor)	Varies by model

Summary

INSTALLATION

General Installation Requirements

Covers unit placement, inspection, electrical, and general setup guidelines.

Refrigerant System Installation

Details refrigerant line sizing, routing, isolation, and placement.

Flushing and System Preparation

Procedures for flushing existing lines, brazing connections, and equipment needs.

START-UP

Refrigerant Charging and Adjustment

Instructions for charging R410A refrigerant and adjusting system parameters.

MAINTENANCE

Outdoor Unit Maintenance

Cleaning condenser coil, fan motor, and checking electrical connections.

Indoor Coil and Unit Maintenance

Inspecting indoor coil, condensate pan, filters, blower, belts, and wiring.

Performance Checklist

Verifies installation and operational parameters after setup.

CONNECTION DIAGRAM

Wiring Diagram and Component Key

Visual representation of electrical connections and component identification.

WARRANTY

Limited Warranty Terms and Conditions

Details warranty coverage, limitations, exclusions, and responsibilities.