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Daikin RXH25CVMB7 - User Manual

Daikin RXH25CVMB7
248 pages
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SiENBE04-512A
Service
Manual
Inverter Pair
Wall Mounted Type
C-Series - D-Series
SiENBE04-512A.book Page 1 Friday, October 5, 2007 1:49 PM

Table of Contents

Questions and Answers

  • H
    Helen HarrisonAug 6, 2025
    Why is the cooling or heating effect poor in my Daikin RXH25CVMB7?
    • M
      millertheresaAug 6, 2025
      If your Daikin Air Conditioner isn't cooling or heating well, check these: * Ensure the air filters are clean. * Remove any obstructions blocking the air inlet or outlet of the indoor and outdoor units. * Verify the temperature setting is correct. * Make sure all windows and doors are closed. * Confirm the airflow rate and direction are appropriately set. * Check if the unit is set to INTELLIGENT EYE mode.
  • M
    Michele MccoyAug 11, 2025
    What to do if my Daikin Air Conditioner's heating stops suddenly and I hear a flowing sound?
    • J
      jeffreycalhounAug 11, 2025
      If the heating operation of your Daikin Air Conditioner stops suddenly and you hear a flowing sound, wait for about 3 to 8 minutes.
  • S
    sarahcarlsonAug 16, 2025
    What to do if my Daikin RXH25CVMB7 Air Conditioner does not operate and the OPERATION lamp is off?
    • A
      adamsjeffreyAug 16, 2025
      If your Daikin Air Conditioner isn't turning on (OPERATION lamp is off), consider the following: * Check if a breaker has tripped or a fuse has blown. * Verify there isn't a power failure. * Ensure batteries are correctly installed in the remote control. * Confirm the timer setting is accurate.
  • O
    ojohnsonAug 21, 2025
    What to do if my Daikin Air Conditioner stops suddenly and the OPERATION lamp flashes?
    • E
      Evan MendozaAug 22, 2025
      If your Daikin Air Conditioner stops suddenly and the OPERATION lamp flashes, clean the air filters or remove any obstacles. Turn the breaker OFF, then turn it back ON, and try operating the air conditioner with the remote control. If the lamp continues to flash, it is recommended to call the service shop where you bought the air conditioner.
  • K
    Kevin McdonaldAug 27, 2025
    Why did my Daikin RXH25CVMB7 stop suddenly, but the OPERATION lamp is on?
    • J
      jordanmelanieAug 27, 2025
      If your Daikin Air Conditioner stopped suddenly and the OPERATION lamp is on, it might be due to a large voltage fluctuation, which triggers a system protection mechanism. The unit will automatically resume operation in approximately 3 minutes.
  • K
    kimdixonAug 31, 2025
    How to get rid of odor from my Daikin Air Conditioner indoor unit?
    • C
      Christine WhiteAug 31, 2025
      If your Daikin Air Conditioner's indoor unit emits an odor, it is recommended to have the indoor unit cleaned by a technician. Consult the service shop where you purchased the air conditioner.

Summary

Part 1 List of Functions

1. List of Functions

Lists all functions applicable to different models, detailing features.

1.1 High Grade Models

Specifies functions available for high-grade models, including advanced features.

1.2 Standard Grade Models

Details functions and features available for standard grade models.

1.3 Non-Inverter Models

Lists functions specifically for non-inverter models, highlighting differences.

Part 2 Specifications

1. Specifications

Presents general technical specifications for the air conditioning units.

1.1 Cooling Only

Detailed specifications for cooling-only operation modes and performance.

1.2 Heat Pump

Comprehensive specifications for heat pump models covering cooling and heating.

Part 3 Printed Circuit Board Connector Wiring Diagram

1. Printed Circuit Board Connector Wiring Diagram

General overview of the PCB connector layout and wiring schematics.

1.1 Indoor Unit

Detailed connector identification and wiring for the indoor unit PCB.

1.2 Outdoor Unit; ARK(X)S-C

Wiring diagrams and connector pinouts for ARK(X)S-C series outdoor units.

1.3 Outdoor Unit; RK(X)H-C, ARK(X)H-C, R(Y)N-C

Wiring diagrams and connector pinouts for RK(X)H-C, ARK(X)H-C, R(Y)N-C outdoor units.

Part 4 Function and Control

1. Main Functions

Explains core operational principles like frequency control and airflow adjustments.

2. Function of Thermistor

Details the role of various thermistors in temperature sensing and system control.

3. Control Specification

Outlines control logic, mode hierarchy, and specific control parameters.

Part 5 System Configuration

1. System Configuration

General overview of the air conditioner system setup and components.

2. Instruction

Guidance on operating and using the air conditioner.

Part 6 Service Diagnosis

1. Caution for Diagnosis

Important warnings and precautions before starting diagnosis.

2. Problem Symptoms and Measures

Lists common issues and their corresponding troubleshooting steps.

3. Service Check Function

Explains how to access and use diagnostic codes via the remote control.

4. Troubleshooting

Comprehensive guide for diagnosing and resolving error codes and system faults.

5. Check

Procedures for checking specific components and their functionality.

Part 7 Removal Procedure

1. Indoor Unit

Step-by-step instructions for safely removing indoor unit components.

2. Outdoor Unit; ARK(X)S-C

Procedures for disassembling and removing parts from ARK(X)S-C outdoor units.

3. Outdoor Unit; RK(X)H-C, ARK(X)H-C, R(Y)N-C

Detailed steps for removing components from RK(X)H-C, ARK(X)H-C, R(Y)N-C outdoor units.

Part 8 Others

1. Others

Covers miscellaneous topics including test runs and jumper settings.

Part 9 Appendix

1. Piping Diagrams

Illustrates the refrigerant flow and pipe connections for various models.

2. Wiring Diagrams

Provides electrical schematics for indoor and outdoor unit wiring.

Daikin RXH25CVMB7 Specifications

General IconGeneral
CategoryAir Conditioner
ModelRXH25CVMB7
Cooling Capacity2.5 kW
Heating Capacity3.2 kW
RefrigerantR32
Weight (Indoor Unit)9.5 kg
Outdoor Unit Weight32 kg
TypeWall Mounted
Noise Level (Indoor)19 dB
Power Supply220-240V / 50Hz

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