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TECHNICAL & SERVICE MANUAL
OUTDOOR UNIT : SAP-CMRV1424EH
DC INVERTER MULTI-SYSTEM AIR CONDITIONER
SAP-CMRV1424EH
SAP-CMRV1924EH
SAP-CMRV1934EH
SAP-CMRV2444EH
SAP-CMRV3144EH
SAP-CMRV1924EH
SAP-CMRV1934EH
SAP-CMRV2444EH
SAP-CMRV3144EH
Capacity
Outdoor Model No.
4.0kW
SAP-CMRV1424EH
5.6kW
SAP-CMRV1924EH
5.6kW
SAP-CMRV1934EH
6.8kW
SAP-CMRV2444EH
8.0kW
SAP-CMRV3144EH
FILE NO.
Destination: Europe
Product Code No.
1 852 330 12
1 852 336 59
1 852 330 13
1 852 330 14
1 852 330 15
< Applicable Indoor Units >
Wall mounted type
SAP-KMRV74EH
SAP-KMRV94EH
SAP-KMRV124EH
SAP-KRV184EH
SAP-KRV244EH
NOTE
For details about the combination, refer to
"Unit Combination Table" in the Appendix of
this manual.
IMPORTANT
These air conditioners employ new
refrigerant R410A.
Pay special attention when
servicing the unit.
REFERENCE NO.
Northern Europe
SM
700662
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Summarization of Contents
Important! Please Read Before Starting
When Transporting
Safety guidelines for moving units.
When Installing
Installation precautions for various locations.
When Servicing
Safety precautions during maintenance and repair.
Others
General safety notes, including ventilation and toxic gas.
SPECIAL PRECAUTIONS
When Wiring
Critical electrical safety warnings for wiring.
APPENDIX A INSTALLATION INSTRUCTIONS
SAP-CMRV1424EH
Installation guide specific to the SAP-CMRV1424EH model.
APPENDIX B INSTALLATION INSTRUCTIONS
SAP-CMRV1924EH, SAP-CMRV1934EH SAP-CMRV2444EH, SAP-CMRV3144EH
Installation guides for multiple outdoor unit models.
2. SPECIFICATIONS
2-1. Unit Specifications
Detailed specifications for outdoor units.
2-2. Major Component Specifications
Specifications for key components like compressor and fan.
2-3. Other Component Specifications
Specifications for sensors and other minor parts.
4. REFRIGERANT FLOW DIAGRAM
4-1. Refrigerant Flow Diagram
Diagram illustrating refrigerant flow in cooling/heating cycles.
5. PERFORMANCE DATA
5-1. Temperature Charts
Data on temperature performance, often in charts.
5-2. Heating Performance
Performance data related to heating capabilities.
6. ELECTRICAL DATA
6-1. Electric Wiring Diagrams
Schematics for electrical connections and wiring.
7. FUNCTIONS
7-1. Explanation of Functions
Detailed descriptions of operational modes and features.
7-2. Protective Functions
Explanation of built-in safety and protective mechanisms.
8. TROUBLESHOOTING
8-1. Precautions before Performing Inspection or Repair
Safety guidelines before starting troubleshooting.
8-2. Trouble Diagnosis by Error Monitor Lamps
Using error lamps to diagnose issues.
8-3. Checking the Outdoor System
Procedures for checking outdoor unit operation and defrost.
8-4. Trouble Diagnosis of Each Part
Identifying problems by checking individual components.
8-5. Trouble Diagnosis of Fan Motor
Troubleshooting steps for the fan motor.
9. REFRIGERANT R410A: SPECIAL PRECAUTIONS WHEN SERVICING UNIT
9-1. Characteristics of New Refrigerant R410A
Properties and composition of R410A refrigerant.
9-2. Checklist before Servicing
Important checks before performing service on R410A systems.
9-3. Tools Specifically for R410A
Required tools for servicing R410A refrigerant systems.
9-4. Tubing Installation Procedures
Guidelines for installing refrigerant tubing.
9-5. In Case of Compressor Malfunction
Procedure for replacing a malfunctioning compressor.
9-6. In Case Refrigerant is Leaking
Steps for detecting and repairing refrigerant leaks.
9-7. Charging Additional Refrigerant
Procedure for adding refrigerant when needed.
9-8. Retro-Fitting Existing Systems
Guidelines for using R410A with existing units/tubing.
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