Ruud RP1442FJ1NA - User Manual

R-410A HEAT PUMP
OUTDOOR UNITS
92-105074-04-03 (8/15)
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
RP13 (13 SEER)
RP14 (14 SEER) AND RP15 (15 SEER)
WARNING:
RECOGNIZE THIS SYMBOL
AS AN INDICATION OF
IMPORTANT SAFETY
INFORMATION

Summary

IMPORTANT SAFETY INFORMATION

WARNINGS

Critical safety warnings for installation and operation.

CAUTIONS

Precautions for handling R-410A systems and installation practices.

INSTALLATION LOCATION AND ENVIRONMENT

Choosing an Optimal Location

INSTALLATION PROCEDURES AND MOUNTING

TOOLS, REFRIGERANT, AND QUICK REFERENCE

Required Tools and Equipment for R-410 A

List of essential tools and equipment for installing R-410A systems.

R-410 A Refrigerant Specifications

R-410 A Quick-Reference Guide

REFRIGERANT TUBING INSTALLATION

Indoor Coil and TXV Requirements

Interconnecting Tubing Basics

REFRIGERANT TUBING AND LIQUID LINE

Tubing and Fitting Losses Calculation

Liquid Line Selection Procedure

TUBING CONNECTIONS AND LEAK TESTING

Tubing Connections and Brazing

Refrigerant Line Leak Testing

Steps for leak testing the refrigerant lines using nitrogen pressure.

WIRING AND CONTROL SYSTEMS

Control Wiring Guidelines

Thermostat Wiring Diagrams

POWER AND GROUNDING WIRING

Power Wiring Requirements

Grounding Procedures for Safety

Ensuring proper grounding for electrical safety and preventing shock.

START-UP PROCEDURES AND AIRFLOW CHECK

Initial Unit Start-Up

Checking Airflow and CFM

Importance of proper airflow and methods for determining system CFM.

EVACUATION AND LEAK TESTING PROCEDURES

System Evacuation Procedure

Steps for evacuating the system to remove air and moisture for optimal performance.

Final Leak Testing Methods

Methods for detecting leaks after evacuation and before charging.

REFRIGERANT CHARGE MANAGEMENT

Checking Refrigerant Charge

Verifying system charge against charts and ensuring correct refrigerant levels.

Charging Units with R-410 A Refrigerant

Specific procedures and cautions for charging R-410A systems.

Confirming Airflow and Coil Cleanliness

Ensuring clean coils and proper indoor airflow before charge adjustment.

Charging by Weight Calculation

Calculating the required refrigerant charge based on line set size and length.

REFRIGERANT CHARGE ADJUSTMENT METHODS

Checking Refrigerant Charge (cont.)

Adjusting charge based on calculated values and temperature/pressure readings.

Gross Charging by Pressures

Initial charge adjustment using system pressures and temperatures.

Final Charge by Subcooling

Final charge adjustment using subcooling method for precise system tuning.

INSTALLATION COMPLETION AND CHARTS

Finishing Up Installation Steps

Final steps after charging, including gauge removal and thermostat setup.

CONTROL FUNCTIONS AND DEFROST

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

Demand Defrost Control Operation

How the demand defrost control monitors conditions to initiate defrost cycles.

Test Mode and Troubleshooting Defrost

DIAGNOSTIC CODES AND SENSOR DATA

High;Low Pressure Control Monitoring

Defrost Control Diagnostic Codes

LED indicators and their corresponding control board statuses for troubleshooting.

DIAGNOSTIC FLOWCHARTS FOR COOLING

Cooling Mechanical Checks Flowchart

Step-by-step guide for diagnosing cooling system mechanical issues.

DIAGNOSTIC FLOWCHARTS FOR HEATING

Heating Mechanical Checks Flowchart

Step-by-step guide for diagnosing heating system mechanical issues.

DIAGNOSTIC FLOWCHARTS FOR DEFROST

Defrost Mechanical Checks Flowchart

Flowchart for troubleshooting issues related to the defrost system.

GENERAL TROUBLESHOOTING GUIDE

Troubleshooting Common System Symptoms

A comprehensive chart listing symptoms, possible causes, and remedies for common issues.

COMPRESSOR OVERHEATING DIAGNOSTICS

Compressor Overheating Causes & Remedies

Detailed analysis of symptoms and solutions for compressor overheating issues.

ELECTRICAL AND START-UP DIAGNOSTICS

Electrical Issues and Flooded Starts Troubleshooting

THERMOSTATIC EXPANSION VALVE (TEV) DIAGNOSTICS

Flooding and TEV Issues Troubleshooting

MODE-SPECIFIC TROUBLESHOOTING TIPS

Cooling Mode Troubleshooting Tips

Heating Mode Troubleshooting Tips

WIRING DIAGRAMS FOR SINGLE PHASE UNITS

Single Phase PSC Fan Motor Wiring Diagram

WIRING DIAGRAMS FOR THREE PHASE UNITS

208;230 V Three Phase Wiring Diagram

WIRING DIAGRAMS FOR 460;575 V THREE PHASE

460;575 V Three Phase Wiring Diagram

Ruud RP1442FJ1NA Specifications

General

Model Number	RP1442FJ1NA
Category	Heat Pump
Cooling Capacity (BTU/h)	42000
Heating Capacity (BTU/h)	42000
SEER Rating	14
HSPF Rating	8.2
Refrigerant Type	R-410A
Voltage	208/230
Phase	1
Compressor Type	Scroll
Sound Level (dBA)	74