Table of Contents
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Installation and
Maintenance
Manual
"P" SERIES
18K - 24K - 220V
INVERTER-DRIVEN AIR
CONDITIONING UNITS
Type
INDOOR UNIT
Type
OUTDOOR UNIT
IMPORTANT:
READ AND UNDERSTAND
THIS MANUAL BEFORE
USING THIS INVERTER-
DRIVEN AIR CONDITIONING
UNIT. KEEP THIS MANUAL
FOR FUTURE REFERENCE.
Model
DHP18NWB21S
DCP18NWB21S
DHP24NWB21S
DCP24NWB21S
Model
DHP18CSB21S
DCP18CSB21S
DHP24CSB21S
DCP24CSB21S
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Table of Contents
Troubleshooting
Related Manuals for Johnson Controls DHP24CSB21S
Summarization of Contents
Introduction and Safety
Introduction to the Manual
Manual covers inverter-driven cooling or heat pump air conditioning units.
Important Safety Instructions
Read and follow all warnings and cautions for safe installation and operation.
General Safety Precautions
Follow all warnings and cautions in manuals for safe operation.
Installation
Installation Dimension Diagram
Diagram showing required space for indoor and outdoor unit installation.
Main Tools for Installation
List of essential tools required for installation and maintenance tasks.
Installation Procedures
Step-by-step guide for the complete installation process of the air conditioning unit.
Installation - Checking Parts
List of parts to check before commencing installation work.
Selection of Installation Location
Guidelines for choosing the optimal and safe location for unit installation.
Electric Connection Requirements
Detailed requirements and safety precautions for electrical connections.
Indoor Unit Installation
Specific steps and considerations for installing the indoor unit.
Outdoor Unit Installation
Specific steps and considerations for installing the outdoor unit.
Vacuum Pump and Leak Detection
Procedure for vacuum pumping and detecting refrigerant leaks.
Post Installation Testing
Checks and tests to perform after installation is complete.
Maintenance
Precautions before Maintenance
Essential safety precautions to follow before performing any maintenance.
Error Code List
List of error codes, their meanings, and corresponding malfunctions.
Troubleshooting Main Malfunctions
Diagnostic flowcharts for major system malfunctions.
Troubleshooting Normal Malfunctions
Guidance for diagnosing and resolving common operational issues.
Support Contact Information
Technical Support Contacts
Support during installation, commissioning, service and troubleshooting.
Applications and Design Support
Presale assistance with equip applications and design support.
Customer Service Contacts
Assistance ordering equipment, parts and accessories.
Warranty Assistance
Assistance with warranty registration, warranty claims, etc.
Parts Support
Equipment and parts pre- and post-sale support.
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Questions and answers