KeepRite DLCDHR - User Manual

Specifications subject to change without notice.
DLFCAB / DLCCAR / DLFCHB / DLCCHR
DLFDAB / DLCDAR / DLFDHB / DLCDHR
SERVICE MANUAL
High Wall Ductless Split System − Sizes 09 to 36
TABLE OF CONTENTS
PAGE
SAFETY CONSIDERATIONS 1.............................
INTRODUCTION 1.......................................
MODEL / SERIAL NUMBER NOMENCLATURES 2............
DIMENSIONS 3..........................................
CLEARANCES 5.........................................
WIRING 6...............................................
CONNECTION DIAGRAMS 7..............................
WIRING DIAGRAMS 8....................................
PCB PRINTED DIAGRAMS 18.............................
REFRIGERATION DIAGRAMS 31...........................
REFRIGERATION LINES 32................................
SYSTEM EVACUATION AND CHARGING 33.................
SEQUENCE OF OPERATION 34............................
TROUBLESHOOTING 36..................................
TROUBLESHOOTING FOR THE MAIN FUNCTION 41.........
DISASSEMBLY INSTRUCTIONS INDOOR UNIT 56...........
DISASSEMBLY INSTRUCTIONS OUTDOOR UNIT 62.........
APPENDIX 78...........................................
SAFETY CONSIDERATIONS
Installing, starting up, and servicing air−conditioning equipment can be
hazardous due to system pressures, electrical components, and
equipment location (roofs, elevated structures, etc.).
Only trained, qualified installers and service mechanics should install,
start−up, and service this equipment.
Untrained personnel can perform basic maintenance functions such as
cleaning coils. All other operations should be performed by trained
service personnel.
When working on the equipment, observe precautions in the literature and
on tags, stickers, and labels attached to the equipment.
Follow all safety codes. Wear safety glasses and work gloves. Keep a
quenching cloth and fire extinguisher nearby when brazing. Use care in
handling, rigging, and setting bulky equipment.
Read this manual thoroughly and follow all warnings or cautions included
in literature and attached to the unit. Consult local building codes and
National Electrical Code (NEC) for special requirements.
Recognize safety information. This is the safety−alert symbol
!
!
. When
you see this symbol on the unit and in instructions or manuals, be alert to
the potential for personal injury. Understand these signal words:
DANGER, WARNING, and CAUTION. These words are used with the
safety−alert symbol. DANGER identifies the most serious hazards which
will result in severe personal injury or death.
WARNING signifies hazards which could result in personal injury or
death. CAUTION is used to identify unsafe practices which may result in
minor personal injury or product and property damage. NOTE is used to
highlight suggestions which will result in enhanced installation, reliability,
or operation.
!
WARNING
ELECTRICAL SHOCK HAZARD
Failure to follow this warning could result in personal
injury or death.
Before installing, modifying, or servicing the system,
the main electrical disconnect switch must be in the OFF
position. There may be more than 1 disconnect switch.
Lock out and tag switch with a suitable warning label.
EXPLOSION HAZARD
Failure to follow this warning could
result in death, serious personal injury,
and/or property damage.
Never use air or gases containing
oxygen for leak testing or operating
refrigerant compressors. Pressurized
mixtures of air or gases containing
oxygen can lead to an explosion.
!
WARNING
CAUTION
!
EQUIPMENT DAMAGE HAZARD
Failure to follow this caution may result in equipment
damage or improper operation.
Do not bury more than 36 in. (914 mm) of refrigerant pipe
in the ground. If any section of pipe is buried, there must be
a 6 in. (152 mm) vertical rise to the valve connections on
the outdoor units. If more than the recommended length is
buried, refrigerant may migrate to the cooler buried section
during extended periods of system shutdown. This causes
refrigerant slugging and could possibly damage the
compressor at start−up.
INTRODUCTION
This service manual provides the necessary information to service,
repair, and maintain the ductless family cooling only and heat pumps.
Section 2 of this manual is an appendix with data required to perform
troubleshooting. Use the Table of Contents to locate a desired topic.

Summary

Safety Considerations

General Safety Precautions

General safety guidelines and precautions for handling and servicing air-conditioning equipment.

Electrical Shock Hazard Warning

Warning about electrical shock hazards and required safety measures.

Explosion Hazard Warning

Warning regarding explosion hazards when using air or oxygen for leak testing.

Equipment Damage Hazard Caution

Model and Serial Number Nomenclature

Connection Diagrams

115 V Connection Diagram (9 K & 12 K Units)

208;230 V Connection Diagram (9 K & 12 K Units)

208;230 V Connection Diagram (18 K - 36 K Units)

Wiring Diagrams

Indoor Unit Wiring Diagram (DLFCAB;DLFCHB)

Detailed wiring diagram for indoor units DLFCAB/DLFCHB (09-12 sizes).

Indoor Unit Wiring Diagram

DLFCAB;DLFCHB Sizes 18-24 (208;230 V) Wiring

Wiring diagram for indoor units DLFCAB/DLFCHB (18-24 sizes).

DLFCAB;DLFCHB Sizes 30-36 (208;230 V) Wiring

Wiring diagram for indoor units DLFCAB/DLFCHB (30-36 sizes).

Outdoor Unit Wiring Diagram

DLCCAR;DLCCHR Sizes 09-12 (115 V) Wiring

Wiring diagram for outdoor units DLCCAR/DLCCHR (09-12, 115V).

DLCCAR;DLCCHR Sizes 09-12 (208;230 V) Wiring

Wiring diagram for outdoor units DLCCAR/DLCCHR (09-12, 208/230V).

Outdoor Unit Wiring Diagram (Cont.)

DLCCAR;DLCCHR Size 18 (208;230 V) Wiring

Wiring diagram for outdoor unit DLCCAR/DLCCHR (Size 18, 208/230V).

DLCCAR;DLCCHR Sizes 30-36 (208;230 V) Wiring

Wiring diagram for outdoor units DLCCAR/DLCCHR (30-36 sizes).

DLCCAR;DLCCHR Size 24 (208;230 V) Wiring

Wiring diagram for outdoor unit DLCCAR/DLCCHR (Size 24, 208/230V).

Indoor Unit DLFDAB;DLFDHB Wiring (09-12, 115 V)

Wiring diagram for indoor units DLFDAB/DLFDHB (09-12, 115V).

Indoor Unit Wiring Diagram (Cont.)

DLFDAB;DLFDHB Sizes 09-24 (208;230 V) Wiring

Wiring diagram for indoor units DLFDAB/DLFDHB (09-24 sizes).

DLFDAB;DLFDHB Sizes 30-36 (208;230 V) Wiring

Wiring diagram for indoor units DLFDAB/DLFDHB (30-36 sizes).

Outdoor Unit Wiring Diagram (DLCD)

DLCDAR Sizes 09-12 (115 V) Wiring

Wiring diagram for outdoor unit DLCDAR (09-12, 115V).

DLCDAR Sizes 09-12 (208-230 V) Wiring

Wiring diagram for outdoor unit DLCDAR (09-12, 208-230V).

Outdoor Unit Wiring Diagram (DLCD) (Cont.)

DLCDAR Sizes 18-24 (208-230 V) Wiring

Wiring diagram for outdoor unit DLCDAR (18-24 sizes).

DLCDHR Sizes 09-12 (208;230 V) Wiring

Wiring diagram for outdoor unit DLCDHR (09-12, 208/230V).

DLCDHR Size 30 (208;230 V) Wiring

Wiring diagram for outdoor unit DLCDHR (Size 30, 208/230V).

DLCDHR Sizes 9-12 (115 V) Wiring

Wiring diagram for outdoor unit DLCDHR (09-12, 115V).

DLCDHR Size 18-24 (208;230 V) Wiring

Wiring diagram for outdoor unit DLCDHR (18-24 sizes).

DLCDHR Size 36 (208;230 V) Wiring

Wiring diagram for outdoor unit DLCDHR (Size 36, 208/230V).

PCB Printed Diagrams (Cont.)

Indoor Units DLFCAB;DLFCHB Sizes 9 to 24 Top View

Top view layout of PCB for indoor units DLFCAB/DLFCHB (9-24 sizes).

Indoor Units DLFCAB;DLFCHB Sizes 30 and 36 Top View

Top view layout of PCB for indoor units DLFCAB/DLFCHB (30-36 sizes).

Outdoor Units DLCCAR;DLCCHR 115 V Sizes 9 and 12 Top View

Outdoor Units DLCCAR;DLCCHR 208;230 V Sizes 9 and 12 Top View

Outdoor Units DLCCAR;DLCCHR Size 18 Top View

Outdoor Units DLCCAR;DLCCHR Size 24 Top View

Outdoor Units DLCCAR;DLCCHR Sizes 30 and 36 Top View

Indoor Units DLFDAB;DLFDHB Sizes 9-24 Top View

Indoor Units DLFDHB Sizes 30 and 36 Top View

Outdoor Units DLCDAR;DLCDHR Sizes 9 and 12 Top View

Outdoor Units DLCDAR;DLCDHR Sizes 18 and 24 Top View

Outdoor Units DLCDHR Sizes 30 and 36 Top View

Indoor Units DLFCAB;DLFCHB Sizes 9 to 24 Bottom View

Bottom view layout of PCB for indoor units DLFCAB/DLFCHB (9-24 sizes).

Indoor Units DLFCAB;DLFCHB Sizes 30 and 36 Bottom View

Outdoor Units DLCCAR;DLCCHR 115 V Sizes 9 and 12 Bottom View

Outdoor Units DLCCAR;DLCCHR 208;230 V Sizes 9 and 12 Bottom View

Outdoor Units DLCCAR;DLCCHR Size 18 Bottom View

Outdoor Units DLCCAR;DLCCHR Sizes 30 and 36 Bottom View

Indoor Units DLFDAB;DLFDHB Sizes 9-24 Bottom View

Indoor Units DLFDHB Sizes 30 and 36 Bottom View

Outdoor Units DLCDAR;DLCDHR Sizes 9 and 12 Bottom View

Outdoor Units DLCDAR;DLCDHR Sizes 18 and 24 Bottom View

Outdoor Units DLCDHR Sizes 30 and 36 Bottom View

Refrigeration Diagrams

Refrigeration System Diagrams

Diagrams illustrating the refrigerant flow for cooling and heating modes.

Refrigerant Lines

System Evacuation and Charging

Unit Damage Hazard Warning

Deep Vacuum Method

Triple Evacuation Method

Troubleshooting

General Troubleshooting Approach

Troubleshooting (Cont.)

Indoor;Outdoor Unit Malfunction Indicators

Table detailing malfunction codes, indicator status, and possible causes for indoor/outdoor units.

Indoor;Outdoor Unit Malfunction Indicators (Continued)

Continuation of malfunction codes, indicator status, and possible causes.

Air Conditioner Can Not Start Up

Troubleshooting table for issues preventing the air conditioner from starting.

ODU Fan Motor Does Not Operate

Troubleshooting table for ODU fan motor operational problems.

Poor Cooling (Heating) for Air Conditioner

Troubleshooting table for poor cooling or heating performance.

Compressor Can Not Operate

Troubleshooting table for compressor operational problems.

Air Conditioner is Leaking

Troubleshooting table for air conditioner leaks.

Horizontal Louver Can Not Swing

Abnormal Sound and Vibration

Troubleshooting for Main Malfunction

Malfunction of Temperature Sensor F1, F2

Flowchart for troubleshooting temperature sensor malfunctions.

Troubleshooting

Malfunction of Blocked Protection of IDU Fan Motor H6

Flowchart for diagnosing IDU fan motor blocked protection issues.

Malfunction of Protection of Jumper Cap C5

Flowchart for troubleshooting jumper cap protection malfunctions.

Malfunction of Over Current Protection E5

Flowchart for diagnosing over current protection malfunctions.

Communication Malfunction E6

Flowchart for troubleshooting communication malfunctions.

Reactor (L) and PFC Capacitor Check

Procedure to check the reactor and PFC capacitor for faults.

Communication Malfunction (AP1 for Outdoor Unit Control Board)

Troubleshooting steps for communication issues related to the outdoor control board.

High Temperature and Overload Protection (E8)

Troubleshooting flowchart for high temperature and overload protection issues.

Start-up Failure (LC)

Troubleshooting flowchart for unit start-up failures.

Overload and High Discharge Temperature Malfunction

Troubleshooting steps for overload and high discharge temperature issues.

Outdoor Unit Malfunction

Capacity Charging Malfunction (09 K;12 K)

Troubleshooting steps for capacity charging malfunctions in 09K/12K outdoor units.

Troubleshooting

ODU Fan Motor Not Operate

Troubleshooting table for ODU fan motor operational issues.

Compressor Not Operate

Troubleshooting table for compressor operational issues.

Troubleshooting (Cont.)

Communication Malfunction (E6)

Flowchart for diagnosing communication malfunctions using error code E6.

Appendix 4: Temperature Sensor Resistance

Ambient Temperature Sensor Resistance Table

Appendix 4: Temperature Sensor Resistance (Cont.)

Tube Temperature Sensors Resistance Table

Discharge Temperature Sensors Resistance Table

KeepRite DLCDHR Specifications

General

Brand	KeepRite
Model	DLCDHR
Category	Air Conditioner
Language	English