English 4Indoor Unit Installation DrawingsO NOFF50 mm or morefrom floorD(M3 × 20L)ECaulkpipe holegap withputty.Cut thermal insulation pipe to anappropriate length and wrap it with tape,making sure that no gap is left in theinsulation pipe’s cut line.Wrap the insulationpipe with thefinishing tape frombottom to top.Before screwing the remotecontroller holder to the wall, makesure that control signals areproperly received by indoor unit.RemotecontrollerholderWirelessremotecontrollerSpace forinstallationwork Min.(200 mm)Space forinstallationwork Min.(200 mm)Mounting plateAM4 × 25L50 mm or morefrom wallsThere should be no spacebetween ceiling and the unit. Space for installation workMin. (200 mm)Space for installation workMin. (200 mm)The mounting plateshould be installedon a wall which cansupport the weightof the indoor unit.Air filtersHold the recessedparts of the frameand unhook the fourclaws.B Photocatalyticdeodorizing filterC Air purifying filterB Photocatalyticdeodorizing filter orC Air purifying filter

installation manual

safety precautions

indoor unit

installation tips

indoor unit installation drawings

ceiling mounting

indoor unit installation

drain piping

refrigerant piping work

Daikin Inverter FLXS25BVMB Installation 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

Inverter FLK25BVMB

safety cautions

cautions regarding products after repair

inspection after repair

using icons

Part 1 List of Functions

List of Functions

Heat Pump

Part 2 Specifications

Specifications

Part 3 Printed Circuit Board Connector Wiring Diagram

Printed Circuit Board Connector Wiring Diagram

Outdoor Unit

Part 4 Function and Control

Main Functions

Auto-Swing

Fan Speed Control for Indoor Units

Programme Dry Function

Automatic Operation

Night Set Mode

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

Moisture Protection Function 2

Defrost Control

Electronic Expansion Valve Control

target discharge pipe temperature control

Malfunctions

Forced Operation Mode

Part 5 System Configuration

System Configuration

Instruction

installation site

Names of Parts

remote controller

Preparation before Operation

to set the clock

AUTO · DRY · COOL · HEAT · FAN Operation

to change the air flow rate setting

Adjusting the Air Flow Direction

POWERFUL Operation

OUTDOOR UNIT SILENT Operation

TIMER Operation

to use on timer operation

Care and Cleaning

air filter

before a long idle period

Troubleshooting

check again

call the service shop immediately

Part 6 Service Diagnosis

Caution for Diagnosis

Problem Symptoms and Measures

Service Check Function

Indoor Unit PCB Abnormality

Freeze-up Protection Control or High Pressure Control

Fan Motor (AC Motor) or Related Abnormality

Thermistor or Related Abnormality (Indoor Unit)

Signal Transmission Error (between Indoor and Outdoor Units)

OL Activation (Compressor Overload)

Compressor Lock

Input Over Current Detection

Four Way Valve Abnormality

Discharge Pipe Temperature Control

Position Sensor Abnormality

CT or Related Abnormality

Thermistor or Related Abnormality (Outdoor Unit)

Electrical Box Temperature Rise

Radiation Fin Temperature Rise

Output Over Current Detection

Insufficient Gas

Over-voltage Detection

High Pressure Control in Cooling

Check

Part 7 Removal Procedure

Indoor Unit

Removal of the Front Panel

Removal of the Horizontal Blade

Removal of the Signal Receiver Unit / Swing Motor

choosing an installation site

Inverter FLK35BVMB

Inverter FLKS25BVMB

Inverter FLKS35BVMB

Inverter FLKS50BVMB

Inverter FLKS60BVMB

Inverter FLX25BVMB

Inverter FLX35BVMB

Inverter FLXS25BVMB

Inverter FLXS35BVMB

Inverter FLXS50BVMB

Inverter FLXS60BVMB