24CARECare and CleaningCAUTION Indoor unit, Outdoor unit and Remote controller1. Wipe them with dry soft cloth. Front grille1. Open the front grille.• Hold the grille by the tabs on the two sidesand lift it until it stops with a click.2. Remove the front grille.• Open the front panel further whilesliding it to either the left or right andpulling it toward you. This will disconnectthe rotation dowel on one side. Thendisconnect the rotation dowel on theother side in the same manner.3. Clean the front grille• Wipe it with a soft cloth soaked in water.• Only neutral detergent may be used.• In case of washing the grille with water, dry it with cloth, dry it up in the shade after washing.4. Attach the front grille• Align the rotation dowels on the left and right of the front panel withthe slots, then push them all the way in.• Close the front panel slowly. (Press the panel at both sides and thecenter.)CAUTIONUnits• Don’t touch the metal parts of the indoor unit. If you touch those parts, this may cause an injury.• When removing or attaching the front grille, use a robust and stable stool and watch your steps carefully.• When removing or attaching the front grille, support the grille securely with hand to prevent it from falling.• For cleaning, do not use hot water above 40 °C, benzine, gasoline, thinner, nor other volatile oils,polishing compound, scrubbing brushes, nor other hand stuff.• After cleaning, make sure that the front grille is securely fixed.Before cleaning, be sure to stop the operation andturn the breaker OFF.

operation manual

Safety precautions

installation site

Names of parts

i outdoor unit

remote controller

Preparation Before Operation

Operation

Adjusting the Air Flow Direction

POWERFUL Operation

OUTDOOR UNIT SILENT Operation

HOME LEAVE Operation

Use as energy-saving mode

INTELLIGENT EYE Operation

TIMER Operation

Note for Multi System

Care and Cleaning

i air filter

before a long idle period

Trouble Shooting

check again

call the service shop immediately

Daikin FTXD50BVMA Operation Manual

indoor units

dc fan lock

high pressure control in cooling

and outdoor units

fan motor connector output check

electronic expansion valve check

four way valve performance check

thermistor resistance check

installation condition check

discharge pressure check

power supply waveforms check

capacitor voltage check

main circuit electrolytic capacitor check

hall ic check

FTKD50BVMA

safety cautions

cautions regarding products after repair

inspection after repair

using icons

List of Functions

Heat Pump Models

Specifications

duct connected type

floor standing type

Outdoor Units - Cooling Only

Indoor Units - Heat Pump

Outdoor Units - Heat Pump

printed circuit board

Printed Circuit Board Connector Wiring Diagram

pcb detail

Wall Mounted Type 50 / 60 / 71 Class

Duct Connected Type

Floor / Ceiling Suspended Dual Type

Floor Standing Type

Outdoor Units

Main Functions

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

Fan Speed Control for Indoor Units

Programme Dry Function

Automatic Operation

Night Set Mode

Intelligent Eye

Home Leave Operation

Inverter Powerful Operation

Other Functions

Function of Main Structural Parts

Function of Thermistor

cooling only model

Control Specification

Frequency Control

Controls at Mode Changing / Start-up

Discharge Pipe Control

Freeze-up Protection Control

Fan Control

Defrost Control

Electronic Expansion Valve Control

target discharge pipe temperature control

Malfunctions

Forced Operation Mode

Wiring-Error Check

Additional Function

System Configuration

Instruction

Safety Precautions

Names of Parts

indoor unit

remote control

Preparation before Operation

to set the clock

auto · dry · cool · heat · fan operation

to change the air flow rate setting

to use on timer operation

priority room setting

air filter

front grille

Troubleshooting

Service Diagnosis

Caution for Diagnosis

Problem Symptoms and Measures

Service Check Function

Code Indication on the Remote Controller

Indoor Unit PCB Abnormality

Freeze-up Protection Control or High Pressure Control

Fan Motor or Related Abnormality

dc motor

Thermistor or Related Abnormality (Indoor Unit)

Shutter Drive Motor / Shutter Limit Switch Abnormality

Signal Transmission Error (between Indoor and Outdoor Units)

Unspecified Voltage (between Indoor and Outdoor Units)

OL Activation (Compressor Overload)

Compressor Lock

DC Fan Lock

Input Over Current Detection

Four Way Valve Abnormality

Discharge Pipe Temperature Control

Position Sensor Abnormality

Part 1 List of Functions ................................................................ 1