Ruud RP1448AJ1NA - 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

Specifications

Proper Installation

Proper sizing & installation critical for optimal performance. Match all components.

Interconnecting Tubing

Refrigerant Level Adjustment

Tubing Installation

Leak Testing

Procedures for leak testing the system using nitrogen to ensure integrity.

WIRING

Control Wiring

Power Wiring

Grounding

Proper grounding is mandatory for safety to prevent electrical shock.

START-UP

Start-Up

Initial procedures, including crankcase heater energization before compressor start.

Checking Airflow

Evacuation and Leak Testing

Evacuation Procedure

Detailed steps for evacuating air and moisture to ensure system longevity and efficiency.

Final Leak Testing

Methods for detecting leaks in the system after evacuation using a leak detector.

Checking Refrigerant Charge

Confirm ID Airflow and Coils Are Clean

Charging by Weight

Gross Charging by Pressures

Final Charge by Subcooling

Final adjustment of refrigerant charge using subcooling method for precise system tuning.

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

Demand Defrost Control

Monitors ambient/coil temps and run time to initiate defrost cycles.

DIAGNOSTICS

Cooling Mechanical Checks Flowchart

Visual guide to diagnose mechanical issues in cooling mode based on system pressures.

Heating Mechanical Checks Flowchart

Defrost Mechanical Checks Flowchart

General Troubleshooting Chart

Service Analyzer Charts

COMPRESSOR OVERHEATING

Identifies causes and remedies for compressor overheating symptoms.

ELECTRICAL

FLOODED STARTS

CONTAMINATION

LOSS OF LUBRICATION

FLOODING

THERMOSTATIC EXPANSION VALVES

Troubleshooting guide for TXV issues affecting superheat and pressure.

COOLING MODE TROUBLESHOOTING TIPS

HEATING MODE TROUBLESHOOTING TIPS

Summarizes system indicators and potential problems for heating mode operation.

WIRING DIAGRAMS

Ruud RP1448AJ1NA Specifications

General

Brand	Ruud
Model	RP1448AJ1NA
Category	Heat Pump
Language	English