Daikin RMX140JVMT9 User Manual

Si18-201
J Series
[Applied Models]
!
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!Super Multi Plus : Cooling Only
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!Super Multi Plus : Heat Pump
Service
Manual

Daikin RMX140JVMT9 Specifications

General

Model	RMX140JVMT9
Category	Heat Pump
Cooling Capacity	14.0 kW
Heating Capacity	16.0 kW
Refrigerant	R410A
Power Supply	3 Phase, 380-415V, 50Hz

Summary

Part 3 Printed Circuit Board Connector Wiring Diagram and Name

1. Printed Circuit Board Connector Wiring Diagram and Name

1.2 Outdoor Unit RMK (X) 140JVMT (C) 9 (8), RMK140JAVM, RMX140JVMB, RMK (X) 140JZVMA (B)

Part 5 Main Functions Outdoor Unit / BP Unit

1. Refrigerant System and Function of Functional Parts of Outdoor Unit

2. Protection Device

Details the protective devices and sensors in outdoor and BP units.

3. System control

Covers the system control logic and operational modes.

Part 6 Flow of Refrigerant

1. Flow of Refrigerant

1.14 Defrost Operation

Part 7 Operations

1. Remote Controller

Details the functions and operation of the remote controllers.

1.1 Wireless Remote Controller

1.2 Wired Remote Controller

Part 8 Operating Test

1. Operating Test

Guides through the initial operating test procedure.

1.1 Operating Test

Step-by-step instructions for performing an operating test.

1.2 Test Operation Switch

1.3 Pump Down Operation Switch

2. Method of Field Set

2.1 Field Setting

2.4 Precautions: For RMK140J / RMX140J Outdoor Unit Users

Part 9 Service Diagnosis

1. Troubleshooting - Split Type Indoor Unit

Guides for troubleshooting issues specific to indoor units.

1.1 Troubleshooting with the Operation Lamp

Diagnosing issues based on the operation lamp status.

1.2 Service Check Function

How to use the service check function for diagnostics.

1.3 Code Indication on the Remote Controller

Lists error codes displayed on the remote controller and their meanings.

1.4 Troubleshooting

General troubleshooting steps for indoor units.

1.5 Troubleshooting Detail

Detailed analysis of specific indoor unit faults.

2. Troubleshooting - SkyAir Indoor Unit

Guides for troubleshooting issues specific to SkyAir indoor units.

2.1 The INSPECTION/TEST Button

Procedure for using the inspection/test button for diagnostics.

2.2 Self-Diagnosis by Wired Remote Controller

How to perform self-diagnosis using a wired remote controller.

2.3 Fault Diagnosis by Wireless Remote Controller

Procedure for fault diagnosis using a wireless remote controller.

2.4 Troubleshooting by LED on the Indoor Unit’s

Troubleshooting based on the status of LEDs on the indoor unit.

2.5 Troubleshooting by Remote Controller Display / LED Display

Diagnosing faults using remote controller display and LED indicators.

2.6 Troubleshooting Detail

In-depth troubleshooting for specific SkyAir indoor unit faults.

3. Troubleshooting - Outdoor Unit Related

Guides for troubleshooting issues related to outdoor units.

3.1 The Unit Runs but Doesn’t Cool (Heat) the Room

Troubleshooting steps when the unit does not cool or heat the room.

3.2 7 Seg. Display on the Outdoor P. C. Board

Interpreting error codes displayed on the outdoor unit's 7-segment display.

3.3 Troubleshooting Detail

Detailed troubleshooting for outdoor unit related problems.

3.4 How to Check

Procedures for checking specific components and conditions.

4. BP Unit Trouble Diagnosis

Troubleshooting guide for BP units.

4.1 PCB Parts Layout

4.2 LED On Branch Provider Unit (Diagnosis LEDs)

Part 10 Removal Procedure

1. For BPMK928B42 · 43

1.2 Opening of Electrical Box Cover and Removal of PCB Mount

Instructions for accessing and removing the PCB mount.

1.3 Removal of Motorized Valve

Procedure for removing motorized valves.

1.4 Removal of Thermistor

Steps for removing thermistors.

2. Outdoor Unit

2.1 Removal of Outer Panels

2.2 Removal of PCB and Electrical Box

Steps for removing the PCB and electrical box.

2.3 Removal of Propeller Fans and Fan Motors

Procedure for removing propeller fans and fan motors.

2.4 Removal of Thermistor

Instructions for removing thermistors from the outdoor unit.

2.5 Removal of Motorized Valve

Steps for removing motorized valves from the outdoor unit.

2.7 Removal of Compressor

Steps for removing the compressor unit.

2.8 Removal of 4-way Valve

Procedure for removing the 4-way valve assembly.

3. Indoor Unit

Part 11 Cautions before Operation

1. Installation

Important cautions regarding the installation process.

1.1 Outdoor Unit

Cautions for installing the outdoor unit.

1.2 BP Unit

2. Wiring

2.1 Outdoor Unit

2.2 BP Unit

2.3 Outdoor Unit Rotary Switch Setting