KeepRite DLFDAB - 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

Electrical Shock Hazard

Warning about electrical shock during installation, modification, or service.

Explosion Hazard

Warning about explosion risk when using air or oxygen for leak testing.

Equipment Damage Hazard

Caution regarding proper installation of refrigerant pipes to avoid damage.

Wiring Information

Wiring Safety Precautions

Warning about wire sizing and conductor types to prevent damage.

Recommended Connection Method

Details on connecting power and communication wires.

Connection Diagrams

Connection Diagram 9 K & 12 K Units 115 V

Wiring diagram for 9K & 12K units at 115V.

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

Wiring diagram for 9K & 12K units at 208/230V.

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

Wiring diagram for 18K-36K units at 208/230V.

Wiring Diagrams

Indoor Unit Wiring Diagram (DLFCAB;DLFCHB)

Wiring diagram for DLFCAB/DLFCHB indoor units (09-12).

Indoor Unit Wiring Diagrams (Continued)

Indoor Unit Wiring Diagram (18-24)

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

Indoor Unit Wiring Diagram (09-24, 208;230 V)

Wiring diagram for DLFDAB/DLFDHB indoor units (09-24, 208/230V).

Indoor Unit Wiring Diagram (30-36)

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

Indoor Unit Wiring Diagram (30-36, 208;230 V)

Wiring diagram for DLFDAB/DLFDHB indoor units (30-36, 208/230V).

Outdoor Unit Wiring Diagrams

Outdoor Unit Wiring Diagram (09-12, 115 V)

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

Outdoor Unit Wiring Diagram (09-12, 208;230 V)

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

Outdoor Unit Wiring Diagrams (Continued)

Outdoor Unit Wiring Diagram (Size 18, 208;230 V)

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

Outdoor Unit Wiring Diagram (30-36, 208;230 V)

Wiring diagram for DLCCAR/DLCCHR outdoor units (30-36, 208/230V).

Outdoor Unit Wiring Diagram (Size 24, 208;230 V)

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

Indoor Unit Wiring Diagram (DLFDAB;DLFDHB, 115 V)

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

Outdoor Unit Wiring Diagrams (DLCD)

Outdoor Unit Wiring Diagram (DLCDAR, 09-12, 115 V)

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

Outdoor Unit Wiring Diagram (DLCDAR, 09-12, 208-230 V)

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

Outdoor Unit Wiring Diagrams (DLCD) (Continued)

Outdoor Unit Wiring Diagram (DLCDAR, 18-24, 208-230 V)

Wiring diagram for DLCDAR outdoor units (18-24, 208-230V).

Outdoor Unit Wiring Diagram (DLCDHR, 09-12, 208;230 V)

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

Outdoor Unit Wiring Diagram (DLCDHR, Size 30, 208;230 V)

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

Outdoor Unit Wiring Diagram (DLCDHR, 9-12, 115 V)

Wiring diagram for DLCDHR outdoor units (9-12, 115V).

Outdoor Unit Wiring Diagram (DLCDHR, 18-24, 208;230 V)

Wiring diagram for DLCDHR outdoor units (18-24, 208/230V).

Outdoor Unit Wiring Diagram (DLCDHR, Size 36, 208;230 V)

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

PCB Printed Diagrams (Continued)

Indoor Unit PCB Top View (9-24)

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

Indoor Unit PCB Top View (30-36)

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

Outdoor Unit PCB Top View (115 V)

Top view of PCB for outdoor units DLCCAR/DLCCHR (115V).

Outdoor Unit PCB Top View (208;230 V, 9-12)

Top view of PCB for outdoor units DLCCAR/DLCCHR (208/230V, 9-12).

Outdoor Unit PCB Top View (Size 18)

Top view of PCB for outdoor units DLCCAR/DLCCHR (Size 18).

Outdoor Unit PCB Top View (Size 24)

Outdoor Unit PCB Top View (Sizes 30-36)

Indoor Unit PCB Top View (DLFDAB;DLFDHB, 9-24)

Indoor Unit PCB Top View (DLFDHB, 30-36)

Outdoor Unit PCB Top View (DLCDAR;DLCDHR, 9-12)

Outdoor Unit PCB Top View (18-24)

Indoor Unit PCB Component Table (9-24)

Component identification table for indoor units DLFCAB/DLFCHB (9-24).

Indoor Unit PCB Component Table (30-36)

Component identification table for indoor units DLFDAB/DLFDHB (30-36).

Outdoor Unit PCB Component Table

Component identification table for outdoor units DLCCAR/DLCCHR.

Outdoor Unit PCB Component Table (208;230 V)

Component identification table for outdoor units DLCCAR/DLCCHR (208/230V).

Outdoor Unit PCB Component Table (Size 18)

Outdoor Unit PCB Component Table (Size 24)

Outdoor Unit PCB Component Table (Sizes 30-36)

Indoor Unit PCB Bottom View (9-24)

Outdoor Unit PCB Bottom View (9-12)

Outdoor Unit PCB Bottom View (18-24)

Refrigerant Lines

General Refrigerant Line Sizing

System Evacuation and Charging

Unit Damage Hazard Caution

Vacuum Pump System Evacuation

Deep Vacuum Method

Triple Evacuation Method

Sequence of Operation

Vacuum Pumping and Leak Detection

Troubleshooting

Recommended Troubleshooting Steps

Troubleshooting (Continued)

Malfunction Codes and Indicators Table

Malfunction Codes and Indicators Table (Cont.)

Troubleshooting for Main Malfunctions

Indoor Unit Malfunctions

Temperature Sensor Malfunction (F1, F2)

Fan Motor Malfunction Troubleshooting

Blocked Protection of IDU Fan Motor (H6)

Jumper Cap Protection Malfunction

Jumper Cap Protection Troubleshooting

Overcurrent Protection Malfunction

Overcurrent Protection Troubleshooting (E5)

Communication Malfunction Troubleshooting

Communication Malfunction Troubleshooting (E6)

Communication Malfunction Troubleshooting Flowchart (E6)

Outdoor Unit 09 K;12 K Troubleshooting

Capacity Charging Malfunction

Capacity Charging Troubleshooting Flowchart

Outdoor Unit Reactor and PFC Capacitor Check

Reactor and PFC Capacitor Troubleshooting Flowchart

Outdoor Unit Communication Malfunction

Communication Malfunction Troubleshooting

High Temperature and Overload Protection

High Temperature;Overload Troubleshooting (E8)

Start-up Failure Troubleshooting

Start-up Failure Troubleshooting (LC)

Overload and High Discharge Temperature Malfunction

Overload;High Discharge Troubleshooting Flowchart

Outdoor Unit Fan Motor Issues

ODU Fan Motor Troubleshooting Table

Compressor and Leakage Issues

Compressor Not Operating Troubleshooting

Air Conditioner Leak Troubleshooting

Abnormal Sound and Vibration

Abnormal Sound;Vibration Troubleshooting Table

General Troubleshooting (Continued)

Troubleshooting: Unit Cannot Start

Troubleshooting: Poor Cooling;Heating

Component Specific Troubleshooting

ODU Fan Motor Troubleshooting

Compressor Troubleshooting

Refrigerant Leak Troubleshooting

Abnormal Sound;Vibration Troubleshooting

Disassembly Instructions: Indoor Unit

Indoor Unit Disassembly (Continued)

Disassembly Instructions: Outdoor Unit 9-12

Outdoor Unit 9-12 Disassembly (Continued)

Disassembly Instructions: Outdoor Unit Sizes 18-24

Outdoor Unit 18-24 Disassembly (Continued)

Disassembly Instructions: Outdoor Unit Sizes 30-36

Disassembly Steps

Disassembly Procedures

Outdoor Unit 30-36 Disassembly (Continued)

Disassembly Steps (Continued)

Disassembly Procedures (Continued)

Appendix

Connection Pipe Configuration

Pipe Expanding Method

Pipe Expanding Note

Expanded Port Inspection

Temperature Sensor Resistance Tables

Ambient Temperature Sensor Resistance (15 K)

KeepRite DLFDAB Specifications

General

Brand	KeepRite
Model	DLFDAB
Category	Air Conditioner
Language	English