Daikin RXS18DVJU Service Manual

1645 Wallace Drive, Suite 110
Carrollton, TX75006
info@daikinac.com
www.daikinac.com
AMERICAS
Organization:
DAIKIN INDUSTRIES, LTD.
AIR CONDITIONING MANUFACTURING DIVISION
Scope of Registration:
THE DESIGN/DEVELOPMENT AND MANUFACTURE OF
COMMERCIAL AIR CONDITIONING, HEATING, COOLING,
REFRIGERATING EQUIPMENT, COMMERCIAL HEATING
EQUIPMENT, RESIDENTIAL AIR CONDITIONING
EQUIPMENT, HEAT RECLAIM VENTILATION, AIR
CLEANING EQUIPMENT, MARINE TYPE CONTAINER
REFRIGERATION UNITS, COMPRESSORS AND VALVES.
Organization:
DAIKIN INDUSTRIES
(THAILAND) LTD.
Scope of Registration:
THE DESIGN/DEVELOPMENT
AND MANUFACTURE OF AIR
CONDITIONERS AND THE
COMPONENTS INCLUDING
COMPRESSORS USED FOR THEM
All of the Daikin Group’s business
facilities and subsidiaries in Japan
are certified under the ISO 14001
international standard for
environment management.
Specifications, designs and other content appearing in this brochure are current as of June 2009 but subject to change without notice.
SiUS04-904
Printed in U.S.A. 06/2009 B AK
SiUS04 - 904
[Applied Models]
 Inverter Pair : Heat Pump
Inverter Pair
Wall Mounted Type H-Series
SiUS04-904Service Manual / Inverter Pair Wall Mounted Type H-Series

Daikin RXS18DVJU Specifications

General

Refrigerant	R32
Power Supply	220-240V, 50Hz
Indoor Unit Noise Level (Cooling)	37 dB(A)
Outdoor Unit Noise Level	49 dB(A)
Type	Split System
Weight (Indoor Unit)	8 kg
Weight (Outdoor Unit)	22 kg

Summary

Part 1 List of Functions

1. Functions

Lists various functions of the indoor and outdoor units, categorized by type.

Part 2 Specifications

1. Specifications

Details technical specifications including capacity, power, and dimensions for different models.

Part 3 Printed Circuit Board Connector Wiring Diagram

1. Printed Circuit Board Connector Wiring Diagram

Diagrams showing connections for indoor and outdoor unit PCBs, detailing component locations.

Part 4 Function and Control

1. Main Functions

Explanation of core operational functions like frequency principle, airflow, and fan speed control.

2. Function of Thermistor

Details the role and function of various thermistors in the system's operation.

3. Control Specification (09/12 Class)

Specifies the control logic and parameters for 09/12 class models.

4. Control Specification (15/18/24 Class)

Specifies the control logic and parameters for 15/18/24 class models.

Part 5 Operation Manual

1. System Configuration

Guidance on properly operating the system after installation and test runs.

2. FTXS09/12HVJU

Operation details and remote controller usage specific to the FTXS09/12HVJU model.

3. FTXS15/18/24HVJU

Operation details and remote controller usage specific to the FTXS15/18/24HVJU model.

Part 6 Service Diagnosis

1. Caution for Diagnosis

Important safety precautions and error detection methods for diagnostic procedures.

2. Problem Symptoms and Measures

Lists common problems and their corresponding solutions or checks.

3. Service Check Function

Procedures for using the service check function on the remote controller.

4. Troubleshooting

Detailed troubleshooting steps for various error codes and malfunctions.

Part 1 List of Functions

1. Functions

Lists various functions of the indoor and outdoor units, categorized by type.

Part 2 Specifications

1. Specifications

Details technical specifications including capacity, power, and dimensions for different models.

Part 3 Printed Circuit Board Connector Wiring Diagram

1. Printed Circuit Board Connector Wiring Diagram

Diagrams showing connections for indoor and outdoor unit PCBs, detailing component locations.

Part 4 Function and Control

1. Main Functions

Explanation of core operational functions like frequency principle, airflow, and fan speed control.

2. Function of Thermistor

Details the role and function of various thermistors in the system's operation.

3. Control Specification (09/12 Class)

Specifies the control logic and parameters for 09/12 class models.

4. Control Specification (15/18/24 Class)

Specifies the control logic and parameters for 15/18/24 class models.

Part 5 Operation Manual

1. System Configuration

Guidance on properly operating the system after installation and test runs.

2. FTXS09/12HVJU

Operation details and remote controller usage specific to the FTXS09/12HVJU model.

3. FTXS15/18/24HVJU

Operation details and remote controller usage specific to the FTXS15/18/24HVJU model.

Part 6 Service Diagnosis

1. Caution for Diagnosis

Important safety precautions and error detection methods for diagnosis.

2. Problem Symptoms and Measures

Lists common problems and their corresponding solutions or checks.

3. Service Check Function

Procedures for using the service check function on the remote controller.

4. Troubleshooting

Detailed troubleshooting steps for various error codes and malfunctions.

Part 7 Removal Procedure

1. FTXS09/12HVJU

Procedures for removing parts from the FTXS09/12HVJU indoor unit.

2. FTXS15/18/24HVJU

Procedures for removing parts from the FTXS15/18/24HVJU indoor unit.

3. RXS09/12DAVJU, RX09/12FAVJU

Procedures for removing parts from RXS09/12DAVJU and RX09/12FAVJU outdoor units.

4. RXS15/18/24DVJU, RX15/18/24FVJU

Procedures for removing parts from RXS15/18/24DVJU and RX15/18/24FVJU outdoor units.

Part 8 Other Considerations

1. Other Considerations

General operational and maintenance guidance, including trial operation and jumper settings.

Part 9 Appendix

1. Piping Diagrams

Visual diagrams illustrating refrigerant piping configurations for indoor and outdoor units.

2. Wiring Diagrams

Electrical wiring diagrams for indoor and outdoor units.