Rheem RA17 Series User Manual

AIR COOLED
CONDENSING UNITS
92-104921-07-06 (4/18)
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
RA17 MODEL SERIES – 17 SEER
WARNING:
RECOGNIZE THIS SYMBOL
AS AN INDICATION OF
IMPORTANT SAFETY
INFORMATION
FEATURING INDUSTRY STANDARD
R-410A REFRIGERANT

Rheem RA17 Series Specifications

General

Series	RA17
Type	Heat Pump
SEER	17
HSPF	9.5
Cooling Capacity (BTU/h)	18, 000 - 60, 000
Heating Capacity (BTU/h)	18, 000 - 60, 000
Refrigerant	R-410A
Compressor Type	Scroll
Motor Type	PSC
Stages	Single

Summary

IMPORTANT SAFETY INFORMATION

AWARNINGS

Crucial safety warnings for installation and operation.

ACAUTIONS

Important cautions regarding R-410A systems and component matching.

Efficiency Testing Notice

Procedure for verifying efficiency ratings as per AHRI standards.

GENERAL INFORMATION

Application

Site survey and heat gain calculation for system selection.

Checking Product Received

Inspecting unit for shipping damage and verifying components.

Electrical and Physical Data

Unit Model Number Explanation

Breakdown of the model number for identification.

Dimensional Data

Physical dimensions for various unit models.

Specifications

Proper Installation

Importance of correct sizing and installation for optimal performance.

Match All Components

List of critical system components that must be matched.

INSTALLATION

Choosing a Location

Guidelines for selecting an optimal outdoor unit location.

Corrosive Environment

Precautions for units installed in corrosive areas.

INSTALLATION

Units With Space Limitations

Clearances and recommendations for confined installations.

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

Securing methods for wind and seismic resistance.

Customer Satisfaction Issues

Unit placement advice for noise reduction.

Unit Mounting Safety

Safety warning for securing elevated units to prevent tipping.

INSTALLATION

Tools for R-410A Installation and Service

List of tools needed for R-410A systems.

R-410A Refrigerant Specifications

Properties and application details of R-410A refrigerant.

R-410A Quick-Reference Guide

Key information and precautions for R-410A.

INSTALLATION

Replacement Unit Guidelines

Guidance for replacing R-22 units with R-410A systems.

Indoor Coil Matching

Requirements for matching indoor coils with R-410A systems.

Interconnecting Tubing Installation

Procedures for installing refrigerant tubing between units.

Refrigerant Level Adjustment

Adjusting refrigerant charge based on line set length.

INSTALLATION

Tubing and Fitting Losses

Accounting for pressure losses from tubing and fittings.

Liquid Line Selection

How to select the proper liquid line size for optimal performance.

INSTALLATION

Long Line Set Applications

Special considerations for applications with extended line sets.

Oil Level Adjustments for Long Line Sets

Formulas for calculating oil level adjustments.

INSTALLATION

Suction Line Selection

Sizing the suction line for proper oil return and system performance.

Refrigerant Migration During Off Cycle

Managing refrigerant migration in long line set systems.

INSTALLATION

Tubing: Same Level Installations

Requirements for long line sets with units on the same level.

Tubing: Outdoor Below Indoor

Requirements for long line sets with outdoor unit below indoor unit.

INSTALLATION

Tubing: Outdoor Above Indoor

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

INSTALLATION

Tubing Installation Guidelines

General guidelines for installing refrigerant tubing.

INSTALLATION

Tubing Routing and Protection

Routing, supporting, and protecting tubing runs.

Tubing Connections

Brazing techniques and materials for refrigerant lines.

INSTALLATION

Tubing Brazing and Insulation

Brazing procedures and proper insulation of lines.

Leak Testing Procedure

Procedure for pressurized leak testing the system.

INSTALLATION

EcoNet Enabled System Introduction

Introduction to the EcoNet enabled 2-Stage Control System.

EcoNet Control Board Description

Overview of the EcoNet communication system board.

Line Voltage and Thermostat Connections

Connection points for power and thermostat.

INSTALLATION

EcoNet System Components Overview

Details on fuses, sensors, buttons, and memory card.

EcoNet Control System Operation

How the EcoNet system and ICC operate.

Low and High Pressure Controls

Function and operation of pressure safety controls.

INSTALLATION

ICC Control with Conventional Thermostats

ICC operation with non-communicating thermostats.

Compressor Operation Management

Details on commands, timers, and delays for compressor operation.

Cooling Operation Indicators

Displays for first and second stage cooling operations.

INSTALLATION

Active Compressor Protection Mode

Overview of active protection modes for the compressor.

Pressure Control Lockouts

Lockouts due to low or high pressure conditions.

Compressor Protector and Start Circuit Lockouts

Indicates protector trips and open start circuits.

INSTALLATION

Compressor Protection Modes Continuation

Continuation of compressor protection modes.

Exiting Lockouts and Test Mode

Procedures for exiting lockouts and entering test mode.

Test and Fault Recall Modes

Procedures for accessing and managing system faults.

INSTALLATION

Compressor Protection and Fault Clearing

Clearing fault history from the system.

Clear Fault History Procedure

Step-by-step guide to clearing fault history.

INSTALLATION

ICC Diagnostic Codes Table

Table listing diagnostic codes and their meanings.

INSTALLATION

ICC Diagnostic Codes Details

Detailed diagnostic codes for system issues.

INSTALLATION

ICC Diagnostic Codes Further Information

Further diagnostic codes and troubleshooting information.

INSTALLATION

Conventional Thermostat Wiring

Wiring instructions for conventional thermostats.

INSTALLATION

Non-communicating Thermostat Wiring Diagrams

Visual guides for wiring non-communicating thermostats.

INSTALLATION

ICC Control Operation Overview

Explains ICC operation with conventional thermostats.

Compressor Operation Management

Details on commands, timers, and delays for compressor operation.

Cooling Operation Indicators

Displays for first and second stage cooling operations.

Compressor Protection Features

Overview of active protection modes and lockouts.

INSTALLATION

ICC Control Operations Continuation

Continuation of ICC control operations and protection modes.

Compressor Lockout Conditions

Details on HPC, locked rotor, and open start circuit lockouts.

Resetting and Testing ICC

Procedures for exiting lockouts and entering test mode.

INSTALLATION

Test and Fault Recall Modes

Procedures for accessing and managing system faults.

Fault Recall Mode Operations

How to enter and navigate fault recall mode.

Clearing Fault History

Steps to clear stored fault data.

INSTALLATION

Electrical Wiring Requirements

General guidelines for field electrical wiring.

Power Wiring Installation

Specifics on connecting power wiring.

Grounding Importance and Procedure

Importance and procedure for unit grounding.

Control Wiring Requirements

Requirements for low-voltage control wiring.

WIRING

Control Wiring Details

Detailed control wiring and wire size recommendations.

Non-communicating Thermostat Wiring Diagrams

Visual guides for wiring non-communicating thermostats.

WIRING

Control Wiring Continuation

Further details on control wiring.

Power Wiring Connection

Connecting power wiring to the unit.

Grounding Reinforcement

Reinforces the importance of proper grounding.

START-UP

Initial Start-Up Procedures

Initial procedures before compressor start.

Checking and Balancing Airflow

Methods for verifying and balancing system airflow.

START-UP

Evacuation and Leak Testing

Procedures for system evacuation and leak detection.

Evacuation Procedure Steps

Detailed steps for proper system evacuation.

Final Leak Testing Steps

Steps for confirming system seal after evacuation.

START-UP

Refrigerant Charge Checking

Procedures for checking and adjusting system charge.

R-410A Charging Procedures

Specific methods for R-410A systems.

Pre-Charge System Checks

Verifying airflow and coil cleanliness before charging.

Charging Methods and Setup

Using weight and measurement devices for charging.

START-UP

Refrigerant Charge Checking Continuation

Continued procedure for checking refrigerant charge.

Gross Charging by Pressures

Using pressures for initial system charge adjustment.

Final Charge by Subcooling

Fine-tuning charge using subcooling measurements.

START-UP

Refrigerant Charge Checking Final Steps

Final steps in charge checking.

Finishing Up Installation Tasks

Final installation tasks and system setup.

COMPONENTS AND CONTROLS

Compressor Crankcase Heat (CCH)

Purpose and installation of crankcase heaters.

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

Function and operation of pressure safety controls.

ACCESSORIES

Low Ambient Control (LAC)

Function and use of the Low Ambient Control.

Hard Start Components

Information on optional hard start components.

DIAGNOSTICS

Electrical Checks Flowchart

Diagnostic guide for electrical issues.

DIAGNOSTICS

Cooling Mechanical Checks Flowchart

Diagnostic guide for mechanical cooling problems.

DIAGNOSTICS

General Troubleshooting Chart

Common issues, causes, and remedies for system problems.

DIAGNOSTICS

Service Analyzer Charts: Compressor Overheating

Troubleshooting compressor overheating issues.

DIAGNOSTICS

Service Analyzer Charts: Electrical Issues

Troubleshooting electrical and flooded start issues.

DIAGNOSTICS

Service Analyzer Charts: Contamination and Lubrication

Troubleshooting contamination and lubrication loss.

DIAGNOSTICS

Service Analyzer Charts: Electronic Expansion Valves

Troubleshooting electronic expansion valves.

DIAGNOSTICS

Service Analyzer Charts: EEV Issues Continuation

Continued troubleshooting for electronic expansion valves.

DIAGNOSTICS

Cooling Mode Troubleshooting Tips

Cooling mode specific troubleshooting guidance.

WIRING DIAGRAMS

Single-Phase Model Wiring Diagrams

Specifies wiring diagrams for single-phase units.

WIRING DIAGRAMS

Electrical Wiring Diagram

Detailed electrical wiring diagram for the unit.

NOTES