Rheem RA1460AJ1NA - User Manual

AIR COOLED
CONDENSING UNITS
92-104921-09-07 (5/16)
Printed in USA
[ ] indicates metric conversions.
Do not destroy this manual.
Please read carefully
and keep in a safe place
for future reference by a
serviceman.
WARNING
THESE INSTRUCTIONS
ARE INTENDED AS AN AID
TO QUALIFIED, LICENSED
SERVICE PERSONNEL FOR
PROPER INSTALLATION,
ADJUSTMENT, AND
OPERATION OF THIS
UNIT. READ THESE
INSTRUCTIONS
THOROUGHLY
BEFORE ATTEMPTING
INSTALLATION OR
OPERATION. FAILURE
TO FOLLOW THESE
INSTRUCTIONS MAY
RESULT IN IMPROPER
INSTALLATION,
ADJUSTMENT, SERVICE,
OR MAINTENANCE
POSSIBLY RESULTING IN
FIRE, ELECTRICAL SHOCK,
PROPERTY DAMAGE,
PERSONAL INJURY, OR
DEATH.
INSTALLATION INSTRUCTIONS
(-)A13, (-)A14 & (-)A16 MODEL SERIES –
13, 14 & 16 SEER
WARNING:
RECOGNIZE THIS SYMBOL
AS AN INDICATION OF
IMPORTANT SAFETY
INFORMATION
ST-A1226-01-00
FEATURING INDUSTRY STANDARD
R-410A REFRIGERANT
earth friendly refrigerant
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NOTE: Actual unit appearance
may vary.

Rheem RA1460AJ1NA Specifications

General

Refrigerant	R-410A
Compressor Type	Scroll
Phase	1
Type	Air Conditioner
Voltage	208-230V
Energy Efficiency Ratio (EER)	11.5

Summary

IMPORTANT SAFETY INFORMATION

AWARNINGS

Key safety warnings for installation and operation.

ACAUTIONS

Important cautions regarding R-410A systems and installation practices.

Efficiency Testing Notice

Procedure for verifying energy efficiency ratings.

GENERAL INFORMATION

Application

Guidelines for selecting and surveying air conditioning equipment.

Checking Product Received

Steps for inspecting units for shipping damage and verifying components.

Electrical and Physical Data

Technical specifications including electrical and physical attributes.

UNIT MODEL NUMBER EXPLANATION

Breakdown of model number coding for unit identification.

DIMENSIONAL DATA

Table detailing unit dimensions for various models.

Specifications

Detailed technical specifications for unit performance and sizing.

Proper Installation

Critical steps for optimal performance and energy efficiency.

INSTALLATION

Choosing a Location

Guidance on selecting optimal outdoor unit placement for longevity and service.

Operational Issues

Considerations for unit placement affecting performance and maintenance.

Corrosive Environment

Protecting the unit from corrosive elements and environmental factors.

For Units With Space Limitations

Clearance requirements for units with space constraints.

Factory-Preferred Tie-Down Method for High Wind or Seismic Loads

Recommended methods for securing units against seismic or wind loads.

Customer Satisfaction Issues

Placement considerations to ensure homeowner comfort and noise reduction.

Unit Mounting

Instructions for securely mounting the outdoor unit.

Tools and Refrigerant

Required tools, refrigerant specifications, and safety precautions for R-410A.

Specifications of R-410 A

Properties and compatibility information for R-410A refrigerant.

Quick-Reference Guide For R-410 A

Key points for servicing R-410A systems.

Replacement Units

Guidelines for replacing existing line sets and filter driers.

Indoor Coil

Requirements for matching indoor coils with R-410A outdoor units.

Interconnecting Tubing

Practices for installing tubing between indoor and outdoor units.

Refrigerant Level Adjustment

Adjusting refrigerant charge based on line set length and configuration.

Interconnecting Tubing and Fitting Losses

Calculating equivalent length of tubing and fittings.

Liquid Line Selection

Determining the correct liquid line size for optimal performance.

Long Line Set Applications

Special considerations for long line set installations.

Oil Level Adjustments for Long Line Set Applications

Calculating and adding oil for long line set configurations.

Suction Line Selection

Importance of suction line sizing for oil return and system performance.

Refrigerant Migration During Off Cycle

Managing refrigerant migration to prevent issues during system off cycles.

Interconnecting Tubing (cont.)

Scenarios for long line sets with units on the same level or outdoor unit below.

Interconnecting Tubing (cont.)

Scenarios for long line sets with outdoor unit above indoor unit.

Interconnecting Tubing

Table for liquid line size and equivalent length calculations.

Interconnecting Tubing

Continuation of liquid line size and equivalent length tables.

Interconnecting Tubing

Continuation of liquid line size and equivalent length tables.

Interconnecting Tubing (cont.)

Table for vapor line selection and capacity multipliers.

Interconnecting Tubing (cont.)

Continuation of vapor line selection and capacity multiplier tables.

Interconnecting Tubing

Table for liquid line size and equivalent length calculations for (-)A14XXW.

Interconnecting Tubing (cont.)

Table for vapor line selection and capacity multipliers for (-)A14XXW.

Interconnecting Tubing (cont.)

Table for vapor line selection and capacity multipliers for (-)A16.

Tubing Installation

Guidelines for installing refrigerant tubing correctly.

Interconnecting Tubing (cont.)

Routing, support, and connection of refrigerant tubing.

Tubing Connections

Proper brazing techniques and materials for tubing connections.

Interconnecting Tubing (cont.)

Leak testing procedures using nitrogen and checking for leaks.

WIRING

Control Wiring

Instructions for low-voltage control wiring and thermostat connections.

FIELD WIRE SIZE FOR 24-VOLT THERMOSTAT CIRCUITS

Table for selecting appropriate wire gauge for thermostat circuits.

Typical Noncommunicating Thermostat Wiring Diagrams

Illustrative diagrams for common thermostat wiring configurations.

Power Wiring

Guidelines for connecting high-voltage power supply to the unit.

Grounding

Critical steps for properly grounding the unit for electrical safety.

START-UP

Start-Up

Procedures for initial start-up and post-shutdown periods.

Checking Airflow

Importance of verifying and balancing airflow for system performance.

Evacuation and Leak Testing

Procedures for system evacuation and final leak detection.

Evacuation Procedure

Detailed steps for evacuating air and moisture from the system.

Final Leak Testing

Methods for detecting leaks after evacuation using a halogen detector.

Checking Refrigerant Charge

Methods for verifying and adjusting refrigerant charge.

Confirm ID Airflow and Coils Are Clean

Ensuring proper indoor airflow and clean coils before charging.

Charging by Weight

Calculating and adding refrigerant charge by weight.

Gross Charging by Pressures

Procedure for initial system charge based on pressure readings.

Final Charge by Subcooling

Method for fine-tuning charge using subcooling measurements.

Finishing Up Installation

Final steps after charge adjustment, including sealing ports and thermostat setup.

COMPONENTS AND CONTROLS

Compressor Crankcase Heat (CCH)

When and how to install crankcase heaters for compressor protection.

High- and Low-Pressure Controls (HPC and LPC)

Function and operation of high and low-pressure safety controls.

ACCESSORIES

Time Delay Control

Function of time delay controls for compressor start-up protection.

Low Ambient Control (LAC)

How LAC maintains performance in low ambient temperatures.

Hard Start Components

Use of start components for difficult starting conditions.

DIAGNOSTICS

Electrical Checks Flowchart

Troubleshooting flowchart for electrical system issues.

Cooling Mechanical Checks Flowchart

Troubleshooting flowchart for cooling system mechanical issues.

General Troubleshooting Chart

Table of common symptoms, causes, and remedies for system problems.

Service Analyzer Charts

Charts for diagnosing compressor overheating issues.

Service Analyzer Charts

Charts for electrical issues, flooded starts, and compressor problems.

Service Analyzer Charts

Charts for contamination, loss of lubrication, and slugging issues.

Service Analyzer Charts

Charts for flooding and thermostatic expansion valve (TEV) issues.

Service Analyzer Charts

Continuation of TEV troubleshooting and valve regulation issues.

COOLING MODE TROUBLESHOOTING TIPS

Indicators for diagnosing cooling mode system problems.

WIRING DIAGRAMS

For Single-Phase Models

Wiring diagram for single-phase remote air conditioner units.

For Three-Phase Models

Wiring diagram for three-phase remote air conditioner units.