Daikin RXH35CVMB7 - User Manual

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

Summary

Introduction

Safety Cautions

General safety guidelines and warnings for handling the equipment.

Cautions Regarding Products after Repair

Specific safety advice for work performed after a repair.

Inspection after Repair

Essential checks to ensure proper and safe operation post-repair.

Using Icons

Explanation of icons used to highlight important information and warnings.

Part 1 List of Functions

List of Functions

Overview of all functions available across different model series.

High Grade Models

Detailed list of functions specific to High Grade models.

Standard Grade Models

Detailed list of functions specific to Standard Grade models.

Non-Inverter Models

Detailed list of functions specific to Non-Inverter models.

Part 2 Specifications

Specifications

Technical data and performance characteristics of the units.

Cooling Only

Detailed specifications for models operating in cooling mode.

Heat Pump

Detailed specifications for models operating in heat pump mode.

High Grade Models

Cooling-only specifications for High Grade models.

Standard Grade Models

Cooling-only specifications for Standard Grade models.

Non-Inverter Models

Cooling-only specifications for Non-Inverter models.

Part 3 Printed Circuit Board Connector Wiring Diagram

Printed Circuit Board Connector Wiring Diagram

Diagrams showing PCB connectors and their functions for the indoor unit.

Indoor Unit

PCB connector details for the indoor unit.

Outdoor Unit; ARK(X)S-C

PCB connector details for outdoor units of ARK(X)S-C series.

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

PCB connector details for outdoor units of RK(X)H-C, ARK(X)H-C, R(Y)N-C series.

Part 4 Function and Control

Main Functions

Explanation of primary operational functions of the air conditioner.

Frequency Principle

How the inverter controls compressor frequency for capacity regulation.

Power-Airflow Dual Flaps, Wide-Angle Louvres and Auto-Swing

Description of airflow control mechanisms for comfort.

Fan Speed Control for Indoor Units

How indoor fan speed is automatically controlled based on temperature.

Programme Dry Function

Function to remove humidity while maintaining room temperature.

Automatic Operation

How the unit automatically selects cooling or heating mode.

NIGHT SET Mode

Energy-saving mode for comfortable sleeping conditions.

INTELLIGENT EYE

Motion sensor function for energy saving by reducing capacity when room is empty.

HOME LEAVE Operation

Function to set preferred temperature and airflow for quick home return.

Inverter POWERFUL Operation

Mode to maximize cooling/heating effect by increasing fan speed and compressor frequency.

Other Functions

Description of various other functions like Hot Start, Signal Receiving, etc.

Function of Thermistor

Role of thermistors in heat pump models for temperature control and protection.

Cooling Only Model

Role of thermistors in cooling-only models for temperature control.

Control Specification

Defines the order of operation modes and priority for control.

Mode Hierarchy

Defines the order of operation modes and priority for control.

Frequency Control

How compressor frequency is determined based on temperature differences.

Controls at Mode Changing; Start-up

Control logic for mode changes and startup conditions.

Preheating Operation

Operation for preheating before normal heating starts.

Four Way Valve Switching

Operation of the four-way valve during heating and cooling cycles.

Four Way Valve Operation Compensation

Compensation logic for four-way valve operation.

Discharge Pipe Control

Control logic based on discharge pipe temperature.

Input Current Control

Sets frequency upper limit based on detected input current.

Freeze-up Protection Control

Prevents indoor heat exchanger freezing by limiting operating frequency.

Heating Peak-cut Control

Controls heating to prevent peak power demand.

Fan Control

Management of fan speed based on various operating conditions.

Liquid Compression Protection Function 2

Protection function to prevent compressor damage from liquid refrigerant.

Defrost Control

Mechanism for defrosting the outdoor unit to maintain heating performance.

Electronic Expansion Valve Control

Control logic for the electronic expansion valve in different modes.

Fully Closing with Power ON

Initial electronic expansion valve state upon power activation.

Pressure Equalization Control

Control to equalize pressure when the compressor is stopped.

Opening Limit

Setting limits for the electronic expansion valve opening.

Starting Operation Control

Controls electronic expansion valve opening during system startup.

High Temperature of the Discharge Pipe

Controls expansion valve for high discharge pipe temperatures.

Disconnection of the Discharge Pipe Thermistor

Detects and handles discharge pipe thermistor disconnection.

Control when frequency is changed

Adjusts expansion valve control when frequency changes.

Target Discharge Pipe Temperature Control

Controls expansion valve to match target discharge pipe temperature.

Malfunctions

Identification and handling of various system malfunctions and errors.

Forced Operation Mode

Mode for forced cooling operation, including starting and ending conditions.

Additional Function

Details on additional functions like Powerful Operation and Voltage Detection.

Facility Setting Jumper

Function to expand operation range to low outdoor temperatures.

Part 5 System Configuration

System Configuration

Overview of the air conditioner system and its components.

Instruction

General instructions for operating and handling the air conditioner.

Safety precautions

Essential safety measures to follow before operating the unit.

Names of parts

Identification of key parts of the indoor and outdoor units.

Preparation Before Operation

Steps for preparing the unit before initial operation, including battery setup.

Auto-Dry-Cool-Heat-Fan Operation

How to select and use different operation modes.

Adjusting the Air Flow Direction

How to adjust horizontal and vertical louvers for optimal airflow.

POWERFUL Operation

How to activate and cancel POWERFUL mode for maximum effect.

OUTDOOR UNIT SILENT Operation

How to activate and cancel silent operation for reduced outdoor unit noise.

HOME LEAVE Operation

Function to record and recall preferred temperature and airflow settings.

INTELLIGENT EYE Operation

How to start and cancel the motion sensor based energy saving function.

TIMER Operation

How to use OFF TIMER and ON TIMER for automatic operation.

Care and Cleaning

General cleaning instructions for all unit components.

FILTERS

Procedure for cleaning and replacing air filters and air-purifying filters.

Troubleshooting

General troubleshooting steps for various error codes.

These cases are not troubles.

Common situations that are not actual unit malfunctions.

Check again.

Steps to re-check before calling a repair person for common issues.

FAULT DIAGNOSIS BY REMOTE CONTROL

How to diagnose faults using the remote control's error codes.

Part 6 Service Diagnosis

Caution for Diagnosis

Important precautions and indicators for diagnosing issues.

Problem Symptoms and Measures

Table of common problems, check items, and solutions.

Service Check Function

Procedure for accessing the service check function via the remote control.

Troubleshooting

General troubleshooting steps for various error codes.

Error Codes and Description

List of error codes and their corresponding descriptions and reference pages.

Indoor Unit PCB Abnormality

Troubleshooting steps for indoor unit PCB abnormalities.

Freeze-up Protection Control or High Pressure Control

Troubleshooting for freeze-up or high pressure protection activation.

Fan Motor (AC Motor) or Related Abnormality

Troubleshooting steps for fan motor issues.

Thermistor or Related Abnormality (Indoor Unit)

Troubleshooting for thermistor issues in the indoor unit.

Signal Transmission Error (between Indoor and Outdoor Unit)

Troubleshooting steps for communication errors between units.

OL Activation (Compressor Overload)

Troubleshooting for compressor overload issues.

Compressor Lock

Troubleshooting steps for compressor lock detection.

DC Fan Lock

Troubleshooting for DC fan motor lock errors.

Input Over Current Detection

Troubleshooting for input over-current detection in the inverter DC section.

Four Way Valve Abnormality

Troubleshooting steps for four-way valve malfunctions.

Discharge Pipe Temperature Control

Troubleshooting for issues related to discharge pipe temperature control.

High Pressure Control in Cooling

Troubleshooting for high pressure control activation during cooling.

Position Sensor Abnormality

Troubleshooting steps for position sensor abnormalities.

DC Voltage; Current Sensor Abnormality

Troubleshooting for DC voltage/current sensor abnormalities.

Thermistor or Related Abnormality (Outdoor Unit)

Troubleshooting for thermistor issues in the outdoor unit.

Electrical Box Temperature Rise

Troubleshooting for electrical box temperature rise due to thermistor detection.

Radiation Fin Temperature Rise

Troubleshooting for radiation fin temperature rise detected by thermistor.

Output Over Current Detection

Troubleshooting for output over-current detection in the inverter DC section.

Insufficient Gas

Troubleshooting steps for detecting and resolving insufficient gas conditions.

Over-voltage Detection

Troubleshooting for abnormal voltage rise detected by the over-voltage detection circuit.

Check

Procedures for checking various components and systems.

How to Check

Detailed guides on how to perform specific checks.

Part 7 Removal Procedure

Indoor Unit

Step-by-step guide for removing parts of the indoor unit.

Removal of Air Filter

Procedure for safely removing the air filter from the indoor unit.

Removal of Front Grille

Procedure for removing the front grille of the indoor unit.

Removal of Horizontal Blade and Vertical Blade

Steps to remove the horizontal and vertical airflow blades.

Removal of Switch Box, PC Board and Swing Motor

Procedure for removing the switch box, PC board, and swing motor.

Removal of Heat Exchanger

Detailed steps for removing the heat exchanger from the indoor unit.

Install of Drain Plug

Procedure for installing the drain plug in the indoor unit.

Removal of Fan Rotor and Fan Motor

Steps to remove the fan rotor and fan motor assembly.

Outdoor Unit; ARK(X)S-C

Procedure for removing panels and the fan motor from the outdoor unit.

Removal of Panels and Fan Motor

Procedure for removing panels and the fan motor from the outdoor unit.

Removal of Electrical Box

Detailed steps for removing the electrical box from the outdoor unit.

Removal of Reactor and Partition Plate

Procedure for removing the reactor and partition plate from the outdoor unit.

Removal of Sound Blanket

Steps to remove the sound insulation blanket from the outdoor unit.

Removal of Four Way Valve

Procedure for removing the four-way valve from the outdoor unit.

Removal of Compressor

Detailed steps for safely removing the compressor.

Removal of PCB

Procedure for removing the Printed Circuit Board (PCB).

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

Procedure for removing external panels from the outdoor unit.

Removal of External Panels

Procedure for removing external panels from the outdoor unit.

Removal of Bell Mouth

Steps to remove the bell mouth from the outdoor unit.

Removal of PCB

Procedure for removing the Printed Circuit Board (PCB).

Removal of Electrical Box

Procedure for removing the electrical box from the outdoor unit.

Removal of Propeller Fan and Fan Motor

Steps to remove the propeller fan and fan motor assembly.

Removal of Compressor Sound Insulation Pad

Procedure for removing the compressor sound insulation pad.

Removal of Compressor

Detailed steps for safely removing the compressor.

Removal of Four Way Valve

Procedure for removing the four-way valve from the outdoor unit.

Removal of Electronic Expansion Valve

Steps to remove the electronic expansion valve.

Part 8 Others

Others

Miscellaneous topics not covered in other sections.

Test Run from the Remote Control

How to perform a test run using the remote control.

Jumper Settings

Information on setting jumpers for specific functions and configurations.

Part 9 Appendix

Piping Diagrams

Schematic diagrams illustrating the refrigerant piping for various models.

Indoor Units

Piping diagrams for indoor units.

Outdoor Units

Piping diagrams for outdoor units.

Wiring Diagrams

Schematic diagrams illustrating electrical connections for indoor and outdoor units.

Indoor Units

Wiring diagrams for indoor units.

Outdoor Units

Wiring diagrams for outdoor units.

Daikin RXH35CVMB7 Specifications

General

Category	Air Conditioner
Model	RXH35CVMB7
Cooling Capacity	3.5 kW
Heating Capacity	4.0 kW
Refrigerant	R32
Weight (Indoor Unit)	8.5 kg
Power Supply	220-240V, 50Hz