Samsung RD140HHXGB Service Manual

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Summarization of Contents

Precautions

1-1 Precautions for the Service

Guidelines for safe and proper handling of electrical parts, connections, and assembly during service.

1-2 Precautions for the Static Electricity and PL

Handling PCB terminals and ensuring installation distance from electronic appliances to prevent noise or damage.

1-3 Precautions for the Safety

Safety measures for electrical connections, power plugs, wiring, multiple outlets, and grounding.

1-4 Precautions for Handling Refrigerant for Air Conditioner

Safety and environmental cautions for handling refrigerant, including frostbite and suffocation risks.

1-5 Precautions for Welding the Air Conditioner Pipe

Safety guidelines for welding, including removing flammable objects and using nitrogen gas.

1-6 Precautions for Additional Supplement of Air Conditioner Refrigerant

Precise calculation of refrigerant, avoiding heating containers, and not operating after removing safety pressure switch.

1-7 Other Precautions

General precautions regarding pipe leakage, service valve operation, and air entry into the refrigerant cycle.

Product Specifications

2-1 The Feature of Product

Details on world-class COP, low-temp heating ability, hyper compressor, and inter-cooler technology.

2-2 Product Specifications

Detailed specifications for Indoor and Outdoor Units, including capacity, power, sound level, and dimensions.

2-3 Accessory and Option Specifications

Information on available accessories and optional components for the air conditioning system.

Disassembly and Reassembly

3-1 Indoor Unit

Step-by-step guide for disassembling and reassembling various indoor unit components.

3-2 Outdoor Unit

Procedure for safely disassembling and reassembling outdoor unit components.

3-3 MCU

Instructions for disassembling and reassembling the MCU (Module Control Unit).

3-4 EEV KIT

Procedure for disassembling and reassembling the EEV (Electronic Expansion Valve) kit.

Troubleshooting

4-1 Check-up Window Description

Explanation of the check-up window interface and its functions on the outdoor unit PCB.

4-2 Troubleshooting

Guidance on troubleshooting common issues, including setting option methods and error detection.

4-2-1 Setting Option Setup Method

Step-by-step procedure for setting the indoor unit PCB option code using the remote controller.

4-2-2 What to check before diagnosis

Troubleshooting steps based on LED lamp combinations for various error types.

4-3 Diagnosis Checklist

Methods for diagnosing errors based on number display codes for Outdoor Units, MCUs, and other components.

4-3-1 Number Display Method (Outdoor Unit, MCU, Cable remote control, wall-mount, etc.)

Explanation of error code display methods based on the first alphabetical character and unit type.

4-4 Auto Inspect Mode

Procedure and guidelines for using the auto inspect mode to identify system abnormalities.

4-4-1 Outline

Identifies abnormalities in main components and provides guidelines for accurate problem solving.

4-4-2 Auto Inspect Mode Steps

Detailed steps for performing auto inspect mode, including preliminary inspection, operation evaluation, and safety evaluation.

4-4-3 Preliminary Inspection

Order of auto inspect, including inspection of installation conditions and parts, and filling out check cards.

4-4-4 Troubleshooting for inspected items

Troubleshooting flowchart for diagnosing errors identified during auto inspection.

4-5 Responses According to Condition

Detailed response procedures for various error codes and conditions, including sensor errors and compressor issues.

4-5-1 Outdoor Unit Operation Flow

Flowchart illustrating the operation sequence of the outdoor unit and potential error causes.

4-5-2 Indoor Unit ROOM sensor Error (Open/Short)

Troubleshooting steps for indoor unit ROOM sensor errors, including resistance checks.

4-5-3 Indoor unit EVAP IN sensor Error (Open/Short)

Troubleshooting steps for indoor unit EVAP IN sensor errors, including resistance checks.

4-5-4 Indoor EVAP OUT sensor Error (Open/Short)

Troubleshooting steps for indoor unit EVAP OUT sensor errors, including resistance checks.

4-5-5 Indoor Heat Exchanger's EVAP IN sensor dislocation error

Diagnosis and troubleshooting for EVAP IN sensor dislocation errors in indoor heat exchangers.

4-5-6 Indoor Heat Exchanger's EVA OUT sensor dislocation error (Open/Short)

Diagnosis and troubleshooting for EVA OUT sensor dislocation errors in indoor heat exchangers.

4-5-7 Simultaneous Indoor Heat Exchanger's EVA IN, OUT sensor dislocation error (Open/Short)

Troubleshooting for simultaneous dislocation errors of EVA IN and OUT sensors in indoor heat exchangers.

4-5-8 Operational error of indoor Unit's Clean Fan (Open/Short)

Troubleshooting steps for operational errors of indoor unit's clean fan motor, including checking connectors and PCB.

4-5-9 Breakdown of EEV (2nd)

Diagnostic and troubleshooting steps for EEV (Electronic Expansion Valve) breakdown during cooling operation.

4-5-10 Problem with EEV closure (2nd)

Troubleshooting for EEV closure problems, covering cooling, heating, and mixed operation conditions.

4-5-11 : Detection of Floating Switch of Indoor Unit's Drain Pump

Troubleshooting steps for errors related to the indoor unit's drain pump floating switch.

4-5-12 The operational error of Indoor Unit's Fan Motor

Troubleshooting steps for operational errors of the indoor unit's fan motor, including checking the HALL IC connector and PCB.

4-5-13 Mixed operation Error (Only applicable to Heat Pump Model/Not to HR model)

Explanation and troubleshooting for mixed operation errors, applicable only to Heat Pump models.

4-5-14 EEPROM error

Troubleshooting steps for EEPROM errors, involving checking communication failure and replacing PCB.

4-5-15 Option error of the Remote Controller for an Indoor Unit

Troubleshooting for option errors related to the remote controller settings for indoor units.

4-5-16 Error due to confused use of Fahrenheit and Celsius

Steps to resolve errors caused by incorrect use of Fahrenheit and Celsius settings.

4-5-17 Simultaneous opening of Cooling/heating MCU SOL Valves 1st/2nd

Troubleshooting for simultaneous opening errors of MCU SOL valves during cooling/heating operations.

4-5-18 Error due to incorrect Indoor Unit Power/Communication Cable Connection

Troubleshooting for errors caused by incorrect indoor unit power or communication cable connections.

4-5-19 SPI Feedback Error

Troubleshooting SPI feedback errors, including checking connector and measuring voltage.

4-5-20 Outdoor Unit Pipe Inspection Error

Diagnosis for outdoor unit pipe inspection errors, focusing on EVA IN/OUT changes and MCU port connections.

4-5-21 Communication Error between Indoor and Outdoor Units during Tracking

Troubleshooting communication errors between indoor and outdoor units during tracking.

4-5-22 Communication Error between Indoor and Outdoor Units after Tracking

Troubleshooting communication errors that occur after tracking is completed, focusing on PCB address settings.

4-5-23 Communication error between main and sub Micom of outdoor unit or between outdoor units

Troubleshooting communication errors between outdoor unit's main and sub Micom, or between outdoor units.

4-5-24 Communication Error between MCU and Outdoor Unit

Troubleshooting communication errors between MCU and outdoor unit, checking setup switches and addresses.

4-5-25 Communication Error between MAIN/HUB PBA

Troubleshooting communication errors between MAIN and HUB PBA.

4-5-26 Communication Error between MCU and Outdoor Unit after Tracking is Completed

Troubleshooting communication errors between MCU and outdoor unit after tracking completion.

4-5-27 MCU branch part setup error – inconsecutive connection with the use of 2 branch parts

Troubleshooting MCU branch part setup errors related to inconsecutive connections.

4-5-28 MCU branch part setup error – Repeated setup for the same address over 3 times

Troubleshooting MCU branch part setup errors related to repeated address setup.

4-5-29 MCU branch part setup error – non-installed address setup

Troubleshooting MCU branch part setup errors related to non-installed address setup.

4-5-30 Setup Error for MCU Branch part – Setup Error for MCU Quantity Used

Troubleshooting MCU branch part setup errors related to incorrect MCU quantity settings.

4-5-31 MCU branch part setup error – Overlapping Indoor unit Address setup

Troubleshooting MCU branch part setup errors related to overlapping indoor unit addresses.

4-5-32 MCU branch part setup error – Set as being used without connection to an Indoor unit

Troubleshooting MCU branch part setup errors when a part is set but not connected to an indoor unit.

4-5-33 MCU branch part setup error – Connect an Indoor unit to a branch part not being used

Troubleshooting MCU branch part setup errors when connecting an indoor unit to an unused branch part.

4-5-34 MCU branch part setup error – Connect more Indoor units than what is actually set up in MCU

Troubleshooting MCU branch part setup errors related to connecting more indoor units than configured.

4-5-35 Outdoor Temperature Sensor Error

Troubleshooting steps for outdoor temperature sensor errors, including connector and resistance checks.

4-5-36 Outdoor Temperature dislocation error

Troubleshooting steps for outdoor temperature sensor dislocation errors, including resistance checks.

4-5-37 COND OUT Temperature Sensor Error (OPEN/SHORT)

Troubleshooting steps for COND OUT temperature sensor errors, including connector and resistance checks.

4-5-38 Outdoor COND OUT sensor breakaway error

Troubleshooting steps for outdoor COND OUT sensor breakaway errors, checking connections and sensor values.

4-5-39 Digital Compressor Discharge Temperature Sensor Error (OPEN/SHORT)

Troubleshooting steps for digital compressor discharge temperature sensor errors, checking connectors and resistance.

4-5-40 Constant Rate Compressor Discharge Temperature Sensor Error (OPEN/SHORT)

Troubleshooting steps for constant rate compressor discharge temperature sensor errors, checking connectors and resistance.

4-5-41 Compressor Discharge Temperature Sensor Breakaway Error

Troubleshooting steps for compressor discharge temperature sensor breakaway errors, checking operation and resistance.

4-5-42 : Dislocation error of Compressor SUMP Temperature (oil temperature) Sensor

Troubleshooting steps for compressor SUMP temperature sensor dislocation errors, checking sensor assembly.

4-5-43 : Suction Temperature Sensor Breakaway Error

Troubleshooting steps for suction temperature sensor breakaway errors, checking connectors and resistance.

4-5-44 SUMP Temperature Sensor Error (OPEN/SHORT)

Troubleshooting steps for SUMP temperature sensor errors, checking connectors and resistance.

4-5-45 High Pressure Sensor Error (OPEN/SHORT)

Troubleshooting steps for high pressure sensor errors, checking connectors, refrigerant, and voltage.

4-5-46 Low-Pressure Sensor Error (OPEN/SHORT)

Troubleshooting steps for low pressure sensor errors, checking connectors, refrigerant, and voltage.

4-5-47 Oil balance temperature sensor error (OPEN/SHORT)

Troubleshooting steps for oil balance temperature sensor errors, checking connectors and resistance.

4-5-48 Suction temperature sensor error (OPEN/SHORT)

Troubleshooting steps for suction temperature sensor errors, checking connectors and resistance.

4-5-49 Double-pipe temperature sensor error (OPEN/SHORT)

Troubleshooting steps for double-pipe temperature sensor errors, checking connectors and resistance.

4-5-50 Main Cooling Sol Valve Open Error

Troubleshooting steps for main cooling solenoid valve open errors, checking connectors and coil operation.

4-5-51 EVI IN Temperature Sensor Error (OPEN/SHORT)

Troubleshooting steps for EVI IN temperature sensor errors, checking connectors and resistance.

4-5-52 EVI OUT Temperature Sensor Error (OPEN/SHORT)

Troubleshooting steps for EVI OUT temperature sensor errors, checking connectors and resistance.

4-5-53 Suction-2 Temperature Sensor Error (OPEN/SHORT)

Troubleshooting steps for suction-2 temperature sensor errors, checking connectors and resistance.

4-5-54 : COMP. DOWN Due to High Pressure Protection Control

Troubleshooting for compressor down errors due to high pressure protection, checking valves, sensors, and refrigerant.

4-5-55 E410 : COMP.DOWN Due to Low Pressure Protection

Troubleshooting for compressor down errors due to low pressure protection, checking refrigerant and valves.

4-5-56 Sump Sensor Error Due to Protection Control

Troubleshooting steps for sump sensor errors due to protection control, checking connectors and temperature readings.

4-5-57 E415 : COMP.DOWN Due to Compressor Discharge Temperature Sensor

Troubleshooting for compressor down errors due to discharge temperature sensor, checking refrigerant and valves.

4-5-58 3-phase Power Reversed Phase and No-phase Inspection

Inspection procedure for 3-phase power issues, including reversed phase and no-phase conditions.

4-5-59 E428 : COMP. DOWN Due to Compressor Control

Troubleshooting for compressor down errors related to compressor control, checking refrigerant and valves.

4-5-60 : Oil Valve (oil balance valve) 1 Self-diagnosis (Open/Close error, Breakaway or Fault of Sensor)

Self-diagnosis and troubleshooting for oil balance valve 1 errors, including sensor checks.

4-5-61 EVI EEV Open Error

Troubleshooting steps for EVI EEV open errors, checking connectors, coil installation, and leakage.

4-5-62 Refrigerant Leakage Error

Troubleshooting refrigerant leakage errors by checking pressure sensors and system integrity.

4-5-63 , : Prohibition of the operation of Compressor due to OoutdoorTemperature

Explanation of compressor operation prohibition due to outdoor temperature, and troubleshooting steps.

4-5-64 High Pressure Standard Not Met before Air Conditioning (Inability to Re-operate)

Troubleshooting for high pressure standard not met before air conditioning, checking sensor and refrigerant.

4-5-65 CCH Malfunction and Sump Sensor Miswiring Error

Troubleshooting CCH malfunction and sump sensor miswiring errors, checking sensor attachment and resistance.

4-5-66 Momentary Blackout Error

Explanation and potential causes for momentary blackout errors.

4-5-67 Error by High Temperature in an Outdoor Fan Motor

Troubleshooting steps for errors caused by high temperature in the outdoor fan motor.

4-5-68 Outdoor Unit Fan Motor RPM Error

Troubleshooting steps for outdoor unit fan motor RPM errors, checking connectors and motor condition.

4-5-69 Over-Voltage Error of an Outdoor Fan Motor

Troubleshooting steps for over-voltage errors in the outdoor fan motor.

4-5-70 Counter-Rotation Error of an Outdoor Fan Motor

Troubleshooting steps for counter-rotation errors of the outdoor fan motor, checking start direction and wind.

4-5-71 : Compressor Excess Current Error

Troubleshooting compressor excess current errors, checking CT sensor and current readings.

4-5-72 E46 : Compressor Low-current Error

Troubleshooting compressor low-current errors, checking CT sensor and operation status.

4-5-73 Liquid Compression Prevention Control

Troubleshooting steps for liquid compression prevention control, checking sensors and valves.

4-5-74 Breakdown of an EEV(1st)

Diagnostic and troubleshooting steps for EEV breakdown during cooling operation.

4-5-75 Breakdown of an EEV closure (1st)

Troubleshooting for EEV closure breakdown, covering cooling and heating operation conditions.

4-5-76 Electronic expansion valve closing malfunction (2nd stage)

Troubleshooting electronic expansion valve closing malfunctions, checking wires, coils, and addresses.

4-5-77 Electronic expansion valve opening malfunction (2nd stage)

Troubleshooting electronic expansion valve opening malfunctions, checking wires, coils, and addresses.

Exploded Views and Parts List

5-1 Indoor Unit

Exploded views and parts list for various indoor unit types like Slim, Cassette, Duct, Ceiling.

5-1-1 Slim 1 way cassette type

Exploded views and parts list for Slim 1-way cassette type indoor units.

5-1-2 2 way cassette type

Exploded views and parts list for 2-way cassette type indoor units.

5-1-3 4 way cassette type

Exploded views and parts list for 4-way cassette type indoor units.

5-1-4 Mini 4 way cassette type

Exploded views and parts list for Mini 4-way cassette type indoor units.

5-1-5 Duct type(Slim I)

Exploded views and parts list for Slim I duct type indoor units.

5-1-6 Duct type(Slim II)

Exploded views and parts list for Slim II duct type indoor units.

5-1-7 Duct type(Slim III)

Exploded views and parts list for Slim III duct type indoor units.

5-1-8 Duct type(MSP)

Exploded views and parts list for MSP duct type indoor units.

5-1-9 Duct type(SUPER)

Exploded views and parts list for SUPER duct type indoor units.

5-1-10 Duct type(BIG)

Exploded views and parts list for BIG duct type indoor units.

5-1-11 Ceiling type

Exploded views and parts list for Ceiling type indoor units.

5-1-12 Console type

Exploded views and parts list for Console type indoor units.

5-1-13 Wall-mounted type(Montblanc)

Exploded views and parts list for Montblanc wall-mounted indoor units.

5-1-14 Wall-mounted type(Neo Forte without EEV)

Exploded views and parts list for Neo Forte wall-mounted indoor units without EEV.

5-1-15 Wall-mounted type(Neo Forte with EEV)

Exploded views and parts list for Neo Forte wall-mounted indoor units with EEV.

5-1-16 Wall-mounted type(Vivace)

Exploded views and parts list for Vivace wall-mounted indoor units.

5-2 Outdoor Unit

Exploded views and parts list for outdoor units, detailing components like fans, compressors, and control boxes.

5-2-1 RD080HHXGA/RD100HHXGA/RD120HHXGA

Exploded views and parts list for RD080/100/120HHXGA outdoor units.

5-2-2 RD080/100/120HHXGB/RD080/100/120HHXGASTK/RD080/100/120HHXGBXSE

Exploded views and parts list for RD080/100/120HHXGB/GASTK/GBXSE outdoor units.

5-2-3 RD140HHXGA

Exploded views and parts list for RD140HHXGA outdoor unit.

5-2-4 RD140HHXGB/RD140HHXGASTK/RD140HHXGBXSE

Exploded views and parts list for RD140HHXGB/GASTK/GBXSE outdoor units.

5-2-5 RD160/180/200HHXGA

Exploded views and parts list for RD160/180/200HHXGA outdoor units.

5-2-6 RD160/180/200HHXGB/RD160/180/200HHXGASTK/RD160/180/200HHXGBXSE

Exploded views and parts list for RD160/180/200HHXGB/GASTK/GBXSE outdoor units.

5-2-7 RD080/100/120HRXGA

Exploded views and parts list for RD080/100/120HRXGA outdoor units.

5-2-8 RD080/100/120HRXGB/RD080/100/120HRXGASTK

Exploded views and parts list for RD080/100/120HRXGB/GASTK outdoor units.

5-2-9 RD140HRXGA

Exploded views and parts list for RD140HRXGA outdoor unit.

5-2-10 RD140HRXGB/RD140HRXGASTK

Exploded views and parts list for RD140HRXGB/GASTK outdoor units.

5-2-11 RD160/180/200HRXGA

Exploded views and parts list for RD160/180/200HRXGA outdoor units.

5-2-12 RD160/180/200HRXGB/RD160/180/200HRXGASTK

Exploded views and parts list for RD160/180/200HRXGB/GASTK outdoor units.

5-2-13 MCU-4EAE3/6EAE3

Exploded views and parts list for MCU-4EAE3/6EAE3 components.

PCB Diagram and Parts List

6-1 Indoor Unit

PCB diagrams and parts lists for various indoor unit types.

6-1-1 Slim 1 way cassette type

PCB diagrams and parts lists for Slim 1-way cassette type indoor units.

6-1-2 2 way cassette type

PCB diagrams and parts lists for 2-way cassette type indoor units.

6-1-3 4 way cassette type

PCB diagrams and parts lists for 4-way cassette type indoor units.

6-1-4 Mini 4 way cassette type

PCB diagrams and parts lists for Mini 4-way cassette type indoor units.

6-1-5 Duct type(Slim I)

PCB diagrams and parts lists for Slim I duct type indoor units.

6-1-6 Duct type(Slim II)

PCB diagrams and parts lists for Slim II duct type indoor units.

6-1-7 Duct type(Slim III)

PCB diagrams and parts lists for Slim III duct type indoor units.

6-1-8 Duct type(MSP)

PCB diagrams and parts lists for MSP duct type indoor units.

6-1-9 Duct type(SUPER)

PCB diagrams and parts lists for SUPER duct type indoor units.

6-1-10 Ceiling type

PCB diagrams and parts lists for Ceiling type indoor units.

6-1-11 Console type

PCB diagrams and parts lists for Console type indoor units.

6-1-12 Wall-mounted type(Montblanc)

PCB diagrams and parts lists for Montblanc wall-mounted indoor units.

6-1-13 Wall-mounted type(Neo Forte without EEV)

PCB diagrams and parts lists for Neo Forte wall-mounted indoor units without EEV.

6-1-14 Wall-mounted type(Neo Forte with EEV)

PCB diagrams and parts lists for Neo Forte wall-mounted indoor units with EEV.

6-1-15 Wall-mounted type(Vivace)

PCB diagrams and parts lists for Vivace wall-mounted indoor units.

6-2 Outdoor Unit

PCB diagrams and parts lists for outdoor units.

6-2-1 ASS'Y PCB MAIN (RD****HHXGA, RD****HRXGA Series)

ASS'Y PCB MAIN diagrams and parts lists for RD****HHXGA/HRXGA series outdoor units.

6-2-2 ASS'Y PCB MAIN (RD****HHXGB, RD****HRXGB Series)

ASS'Y PCB MAIN diagrams and parts lists for RD****HHXGB/HRXGB series outdoor units.

6-2-3 ASS'Y PCB MAIN HUB

Diagrams and parts list for ASS'Y PCB MAIN HUB.

6-2-4 ASS'Y BLDC EMI DRIVER (RD****HHXGA, RD****HRXGA Series)

Diagrams and parts list for ASS'Y BLDC EMI DRIVER (RD****HHXGA, RD****HRXGA Series).

6-2-5 ASS'Y BLDC EMI DRIVER (RD****HHXGB, RD****HRXGB Series)

Diagrams and parts list for ASS'Y BLDC EMI DRIVER (RD****HHXGB, RD****HRXGB Series).

6-2-6 ASS'Y PCB SUB SENSOR CT UP

Diagram and parts list for ASS'Y PCB SUB SENSOR CT UP.

6-2-7 ASS'Y PCB SUB SENSOR CT LOW

Diagram and parts list for ASS'Y PCB SUB SENSOR CT LOW.

6-2-8 MCU

Diagram and parts list for MCU.

6-3-3 ASS'Y PCB SUB DRIVER

Diagram and parts list for ASS'Y PCB SUB DRIVER.

6-3-5 ASS'Y PCB SUB SENSOR CT LOW : DB93-11519A

Parts list for ASS'Y PCB SUB SENSOR CT LOW (DB93-11519A).

6-3-6 ASS'Y PCB MAIN MCU : DB93-04661G

Parts list for ASS'Y PCB MAIN MCU (DB93-04661G).

Wiring Diagram

7-1 Indoor

Wiring diagrams for various indoor unit types.

7-1-1 Slim 1 way cassette type

Wiring diagrams for Slim 1-way cassette type indoor units.

7-1-2 2way cassette type

Wiring diagrams for 2-way cassette type indoor units.

7-1-3 4way cassette type

Wiring diagrams for 4-way cassette type indoor units.

7-1-4 Mini 4way cassette type

Wiring diagrams for Mini 4-way cassette type indoor units.

7-1-5 Duct type(Slim I, II)

Wiring diagrams for Slim I and II duct type indoor units.

7-1-6 DUCT type(Slim III)

Wiring diagrams for Slim III duct type indoor units.

7-1-7 DUCT type(MSP)

Wiring diagrams for MSP duct type indoor units.

7-1-8 DUCT type(HSP)

Wiring diagrams for HSP duct type indoor units.

7-1-9 DUCT type(SUPER)

Wiring diagrams for SUPER duct type indoor units.

7-1-10 DUCT type(BIG)

Wiring diagrams for BIG duct type indoor units.

7-1-11 Ceiling type

Wiring diagrams for Ceiling type indoor units.

7-1-12 Console type

Wiring diagrams for Console type indoor units.

7-1-13 Wall Mounted type(Montblanc)

Wiring diagrams for Montblanc wall-mounted indoor units.

7-1-14 Wall Mounted type(Neo Forte without EEV)

Wiring diagrams for Neo Forte wall-mounted indoor units without EEV.

7-1-15 Wall Mounted type(Neo Forte with EEV)

Wiring diagrams for Neo Forte wall-mounted indoor units with EEV.

7-1-16 Wall Mounted type(Vivace)

Wiring diagrams for Vivace wall-mounted indoor units.

7-2 Outdoor Unit

Wiring diagrams for outdoor units.

7-2-1 Outdoor

Wiring diagrams for outdoor units (HP operation).

7-2-2 MCU

Wiring diagrams for MCU (Module Control Unit).

Schematic Diagram

8-1 Indoor Unit

Schematic diagrams for various indoor unit types.

8-1-1 Slim 1 way cassette type

Schematic diagram for Slim 1-way cassette type indoor units.

8-1-2 2 way cassette type

Schematic diagram for 2-way cassette type indoor units.

8-1-3 4 way cassette type

Schematic diagram for 4-way cassette type indoor units.

8-1-4 Mini 4 way cassette type

Schematic diagram for Mini 4-way cassette type indoor units.

8-1-5 Duct type(Slim, MSP, HSP)

Schematic diagrams for Slim, MSP, and HSP duct type indoor units.

8-1-6 Duct type(SUPER)

Schematic diagram for SUPER duct type indoor units.

8-1-7 DUCT type(BIG)

Schematic diagram for BIG duct type indoor units.

8-1-8 Ceiling type

Schematic diagram for Ceiling type indoor units.

8-1-9 Console type

Schematic diagram for Console type indoor units.

8-1-10 Wall-mounted type(Montblanc)

Schematic diagram for Montblanc wall-mounted indoor units.

8-1-11 Wall-mounted type(Neo Forte without EEV/Vivace)

Schematic diagrams for Neo Forte (without EEV) and Vivace wall-mounted indoor units.

8-1-12 Wall-mounted type(Neo Forte with EEV)

Schematic diagram for Neo Forte wall-mounted indoor units with EEV.

8-2 Outdoor Unit

Schematic diagrams for outdoor units.

8-2-1 ASS'Y PCB MAIN (RD****HHXGA, RD****HRXGA Series)

Diagrams for ASS'Y PCB MAIN (RD****HHXGA, RD****HRXGA Series).

8-2-2 ASS'Y PCB MAIN (RD****HHXGB, RD****HRXGB Series)

Diagrams for ASS'Y PCB MAIN (RD****HHXGB, RD****HRXGB Series).

8-2-3 ASS'Y PCB MAIN HUB

Diagram and parts list for ASS'Y PCB MAIN HUB.

8-2-4 ASS'Y BLDC EMI DRIVER (RD****HHXGA, RD****HRXGA Series)

Diagrams and parts list for ASS'Y BLDC EMI DRIVER (RD****HHXGA, RD****HRXGA Series).

8-2-5 ASS'Y BLDC EMI DRIVER (RD****HHXGB, RD****HRXGB Series)

Diagrams and parts list for ASS'Y BLDC EMI DRIVER (RD****HHXGB, RD****HRXGB Series).

8-2-6 ASS'Y PCB SUB SENSOR CT UP

Diagram and parts list for ASS'Y PCB SUB SENSOR CT UP.

8-2-7 ASS'Y PCB SUB SENSOR CT LOW

Diagram and parts list for ASS'Y PCB SUB SENSOR CT LOW.

8-2-8 MCU

Diagram and parts list for MCU.

Reference Sheet

9-1 Index for Model Name

Index to understand model codes for Indoor Units.

9-1-1 Indoor Unit

Index for indoor unit model names, detailing classification, design, mode, and voltage.

9-1-2 Outdoor Unit

Index for outdoor unit model names, detailing classification, type, mode, and voltage.

9-2 Refrigerant Circuit Diagram

Description of function parts and cycle operation modes for DVM PLUS 4 Europe Type H/P and H/R systems.

9-2-1 Cycle Operation Mode

Description of function parts and cycle operation modes.

9-3 Pump-down Method

Procedures for pump-down of refrigerant, including precautions and steps for single or multiple outdoor units.

9-3-1 Precautions for Pump-down

Precautions for safe refrigerant handling and pump-down operations.

9-3-2 For Single Installation of Outdoor Unit (Only One Outdoor Unit Installed)

Procedure for pump-down when only one outdoor unit is installed.

9-3-3 When Two or More Outdoor Units are Installed

Procedure for pump-down when two or more outdoor units are installed.

9-4 How to Put Refrigerant in Refrigerant Container

Instructions on how to safely put refrigerant into a container before pump-down.

9-4-1 How to put refrigerant in container before pump-down

Detailed steps for safely putting refrigerant into a container before pump-down.