Daikin ATXS35BVMB [2/186] Inverter multi for 2 rooms inverter multi for 2 rooms inverter multi for 2 rooms inverter multi for 2 rooms b series b series b series b series

Combination of indoor unit each capacity kw total capacity kw total input w total current a power factor a room b room rating min max rating min max rating min max rating 2 21

Cooling only sibe12 314 21

Outdoor units 21

Specifications 21

V 50hz 21

Heat pump 22

Indoor units 22

Sibe12 314 heat pump 22

Specifications 13 22

Wall mounted type 230v 50hz 22

Duct connected type 230v 50hz 23

Floor ceiling suspended dual type 230v 50hz 23

Heat pump sibe12 314 23

Specifications 23

Combination capacity cooling 230v 24

Combination of indoor unit each capacity kw total capacity kw total input w total current a power factor a room b room rating min max rating min max rating min max rating 2 2 0 2 0 1 0 3 0 755 340 1020 3 1 4 94 3 3 5 3 5 1 0 3 0 1120 340 1440 5 1 6 95 2 2 1 5 1 5 3 0 1 0 4 0 1215 400 1490 5 2 6 94 2 3 1 5 2 5 3 0 1 0 4 0 1215 400 1490 5 2 6 94 24

Outdoor units 24

Sibe12 314 heat pump 24

Silent mode 24

Sound pressure 24

Specifications 15 24

V 50hz 24

Heating 230v 25

Part 3 printed circuit board connector wiring diagram 26

Printed circuit board connector wiring diagram 27

Wall mounted type 27

Detail of pcb 28

Printed circuit board connector wiring diagram 19 28

Sibe12 314 printed circuit board connector wiring diagram 28

Duct connected type 29

Floor ceiling suspended dual type 30

Outdoor unit 32

Control pcb pcb 2 detail 33

Control specification 2 34

Function of main structural parts 8 34

Main functions 6 34

Part 4 function and control 34

Part 4 part 4 part 4 part 4 function and control function and control function and control function and control 34

Additional control parameters 35

Drawing of inverter the following drawing shows a schematic view of the inverter principle 35

Forced cooling operation 35

Frequency principle 35

Frequency restrictions 35

Initial settings 35

Inverter principle to regulate the capacity a frequency control is needed the inverter makes it possible to vary the rotation speed of the compressor the following table explains the conversion principle 35

Main control parameters the compressor is frequency controlled during normal operation the target frequency is set by the following 2 parameters coming from the operating indoor unit 35

Main functions 35

Note see the list of functions for the functions applicable to different models 35

The difference between the room temperature and the set temperature 35

The load condition of the operating indoor unit 35

The target frequency is adapted by additional parameters in the following cases 35

Comfortable air conditioning a detailed adjustment is integrated to ensure a fixed room temperature it is possible to air condition with a small room temperature variation 36

Energy saving heating and cooling once the set temperature is reached the energy saving operation enables to maintain the room temperature at low power 36

Even during extreme cold weather the high capacity is achieved it is maintained even when the outdoor air temperature is 2 c 36

Forced cooling operation for more information refer to forced operation mode on page 36

Frequency limits the following table shows the functions that define the minimum and maximum frequency 36

Inverter features the inverter provides the following features 36

Quick heating and quick cooling the compressor rotational speed is increased when starting the heating or cooling this enables a quick set temperature 36

The regulating capacity can be changed according to the changes in the outdoor air temperature and cooling heating load 36

Power airflow dual flaps wide angle louvers and auto swing 37

35 kw class 500 860 rpm during powerful operation 850 910 rpm 38

Automatic air flow control for cooling 38

Automatic air flow control for heating 38

Control mode the airflow rate can be automatically controlled depending on the difference between the set temperature and the room temperature this is done through phase control and hall ic control 38

Fan speed control for indoor units 38

For more information about hall ic refer to trouble shooting for fan motor on page 38

Function and control 29 38

H hh powerful 38

Ll cooling thermostat off sl silent 38

Note 1 during powerful operation fan operate h tap 50 90 rpm 2 fan stops during defrost operation 38

Phase steps phase control and fan speed control contains 9 steps lll ll sl l ml m mh h and hh 38

Sibe12 314 main functions 38

Step cooling heating dry mode lll heating thermostat off 38

The following drawing explains the principle for fan speed control for heating 38

The following drawing explains the principle of fan speed control for cooling 38

Within this range the airflow rate is automatically controlled when the airflow adjusting button is set to automatic 38

In case of inverter units the microcomputer automatically sets the temperature and fan settings the difference between the room temperature at startup and the temperature set by the microcomputer is divided into two zones then the unit operates in the dry mode with an appropriate capacity for each zone to maintain the temperature and humidity at a comfortable level 39

Programme dry function 39

Programme dry function removes humidity while preventing the room temperature from lowering since the microcomputer controls both the temperature and air flow volume the temperature adjustment and fan adjustment buttons are inoperable in this mode 39

Automatic operation 40

Night set mode 41

A microcomputer in an indoor unit carries out a sampling every 20 msec and if it detects 10 cycles of the wave in one second in total corresponding to 20msec 10 100msec it judges human is in the room as the motion signal is on 42

Function and control 33 42

In case of fan mode the fan speed reduces by 50 rpm 42

Intelligent eye 42

Processing 1 detection method by intelligent eye 42

Sibe12 314 main functions 42

The motions for example in cooling 42

This is the function that detects existence of humans in the room by a human motion sensor intelligent eye and reduces the capacity when there is no human in the room in order to save electricity 42

This sensor detects human motion by receiving infrared rays and displays the pulse wave output 42

When a microcomputer doesn t have a signal from the sensor in 20 minutes it judges that nobody is in the room and operating the unit in temperature sifted 2 c from the set temperature cooling 2 c higher dry 1 c higher and auto according to the operation mode at that time 42

Home leave operation 44

Details of the control when powerful button is pushed in each operation mode the fan speed setting temperature will be converted to the following states in a period of twenty minutes 45

Ex powerful operation in cooling mode 45

Inverter powerful operation 45

Outline in order to exploit the cooling and heating capacity to full extent operate the air conditioner by increasing the indoor fan rotating speed and the compressor frequency 45

Tpf 20min 45

Air purifying filter 46

Auto restart function 46

Hot start function 46

Mold proof air filter 46

On off button on indoor unit 46

Other functions 46

Photocatalytic deodorizing filter 46

Self diagnosis digital display 46

Signal receiving sign 46

Cooling only model 47

Function and control 47

Function of main structural parts 47

Function of main structural parts sibe12 314 47

Heat pump model 47

Main structural parts 47

Function of thermistor 48

Heat pump model 48

Cooling only model 50

Control specification 51

Detail 1 for heat pump model there are following modes stop cooling includes drying heating include defrosting 51

For cooling only model there are following models stop and cooling including drying 51

For the rooms set with different mode select stand by mode operation lamp flashes 51

Mode hierarchy 51

Note unless specified otherwise an indoor dry operation command must be regarded as cooling operation determine operating mode judge the operating mode command set by each room in accordance with the instructing procedure and determine the operating mode of the system the following procedure will be taken as the modes conflict with each other 51

Outline there are two modes the mode selected in user s place normal air conditioning mode and forced operation mode for installation and providing service 51

The system will follow the mode determined first first push first set 51

Frequency control 52

D signal 1 p control calculate a total of the 53

D signal and is used for frequency command 53

D signal the difference between a room temperature and the temperature set by the remote controller will be taken as the 53

D value in each sampling time 20 seconds and adjust the frequency according to its difference from the frequency previously calculated 2 i control if the operating frequency is not change more than a certain fixed time adjust the frequency up and down according to the 53

D value is large increase the frequency 3 limit of frequency variation width when the difference between input current and input current drooping value is less than 1 a the frequency increase width must be limited 4 frequency management when other controls are functioning 53

D value is small lower the frequency when the 53

D value obtaining the fixed 53

D value of each room and a total value of q 53

D value when the 53

Determine upper limit frequency 53

For limiting lower limit frequency management is carried out only when the frequency rises 5 upper and lower limit of frequency by pi control the frequency upper and lower limits are set depending on the total of s values of operating room when low noise commands come from the indoor unit more than one room or when outdoor unit low noise or quiet commands come from all the rooms the upper limit frequency must be lowered than the usual setting 53

Frequency initial setting 53

Indoor frequency command 53

Outline when starting the compressor or when conditions are varied due to the change of the operating room the frequency must be initialized according to the total of a maximum 53

Pi control determine frequency up down by 53

Q of the operating room the room in which the thermostat is set to on q value indoor unit output determined from indoor unit volume air flow rate and other factors 53

Set a maximum value as an lower limit frequency among the frequency lower limits of the following functions pressure difference upkeep 4 determine prohibited frequency 53

Set a minimum value as an upper limit frequency among the frequency upper limits of the following functions compressor protection input current discharge pipes freeze prevention dew prevention fin thermistor temperature 3 determine lower limit frequency 53

Th off thermostat off indoor unit capacity s value the capacity of the indoor unit is a s value and is used for frequency command 53

There is a certain prohibited frequency such as a power supply frequency 53

When each frequency is drooping frequency management is carried out only when the frequency droops 53

3 minutes stand by 54

Compressor protection function 54

Controls at mode changing start up 54

Four way valve operation compensation 54

Four way valve switching 54

Preheating operation 54

Discharge pipe control 55

Input current control 55

Freeze up protection control 56

Heating peak cut control 56

Fan control 57

Moisture protection function 2 57

Defrost control 58

Detail conditions for starting defrost the starting conditions must be made with the outdoor air temperature and heat exchanger temperature under the conditions that the system is in heating operation 6 minutes after the compressor is started and more than 30 minutes of accumulated fine pass since the start of the operation or ending the defrosting conditions for canceling defrost the judgment must be made with heat exchanger temperature 4 c 12 c 58

Function and control 49 58

Outline heat pump only defrosting is carried out by the cooling cycle reverse cycle the defrosting time or outdoor heat exchanger temperature must be more than its fixed value when finishing 58

Sibe12 314 control specification 58

Electronic expansion valve control 59

Detail the followings are the examples of control which function in each mode by the electronic expansion valve control 60

Function and control 51 60

Sibe12 314 control specification 60

Disconnection of the discharge pipe thermistor 61

Fully closing with power on 61

Gas pipe isothermal control during cooling 61

High temperature of the discharge pipe 61

Oil recovery function 61

Opening limit 61

Pressure equalization control 61

Starting operation changing operating room control 61

Control when frequency is changed 62

Sc control 62

Target discharge pipe temperature control 62

Detection of overload and over current 63

Insufficient gas control 63

Malfunctions 63

Sensor malfunction detection 63

Additional function 64

Compressor operating frequency and outdoor unit airflow rate are increased 64

Detail forced cooling 64

During cooling if the heat exchanger temperature in the operation stopped room becomes below the specified temperature for the specified time open the electronic expansion valve in the operation stopped room as specified and carry out the fully closed operation after this if freezing abnormality occurs more than specified time the system shall be down as the system abnormality 64

Forced operation mode 64

Outline forced operating mode includes only forced cooling 64

Power supply voltage is detected each time equipment operation starts 64

Powerful operation mode 64

Preventing indoor freezing 64

Voltage detection function 64

Part 5 part 5 part 5 part 5 system configuration system configuration system configuration system configuration 66

Part 5 system configuration 66

System configuration 8 2 instruction in case of ftk x s 25 35 bvmb 9 66

System configuration 67

Caution 68

Instruction in case of ftk x s 25 35 bvmb 68

Safety precautions 68

Warning 68

A place from where the air discharged from the outdoor unit or the operation noise will not annoy your neighbour 69

A place solid enough to bear the weight of the unit which does not amplify the operation noise or vibration 69

Consider nuisance to your neighbours from noises 69

Electrical work 69

For power supply be sure to use a separate power circuit dedicated to the air conditioner 69

I for installation choose a place as described below 69

Installation site 69

Places where snow may block the outdoor unit 69

Places where sulfide gas occurs such as hot springs 69

Places with an oily ambient or where steam or soot occurs 69

Relocating the air conditioner requires specialized knowledge and skills please consult the dealer if reloca tion is necessary for moving or remodeling 69

Salty environment such as coastal areas 69

System relocation 69

I indoor unit 70

Names of parts 70

On off 70

I outdoor unit 71

Iiii outdoor unit 71

Indoor unit 71

Arc433a1 a2 72

I remote controller 72

I to set the batteries 73

Preparation before operation 73

Attention 74

Choose a place from where the sig nals reach the unit 74

Fix the holder to a wall a pillar etc with the screws supplied with the holder 74

I to fix the remote controller holder on the wall 74

I to operate the remote controller 74

Place the remote controller in the remote controller holder 74

Preparation before operation 74

Be careful not to cool heat the room too much keeping the temperature setting at a moderate level helps save energy cover windows with a blind or a curtain blocking sunlight and air from outdoors increases the cooling heating effect clogged air filters cause inefficient operation and waste energy clean them once in about every two weeks 75

I to set the clock 75

I turn the breaker on 75

If you are not going to use the air conditioner for a long period for example in spring or autumn turn the breaker off 75

Instruction in case of ftk x s 25 35 bvmb sibe12 314 75

Operation outside this humidity or temperature range may cause a safety device to disable the system 75

Press clock button 75

Press timer setting button to set the clock to the present time 75

Sensor 75

Silent 75

System configuration 75

The air conditioner always consumes 15 35 watts of electricity even while it is not operating 75

Use the air conditioner in the following conditions 75

Auto dry cool heat fan operation 76

I to change the temperature setting 76

I to start operation 76

I to stop operation 76

I to change the air flow direction 77

I to change the air flow rate setting 77

Press fan setting button 77

Adjusting the air flow direction 78

I to adjust the horizontal blades flaps 78

I to adjust the vertical blades louvers 79

Notes on flaps and louvers angles 79

I to cancel powerful operation 80

I to start powerful operation 80

Powerful operation 80

I to cancel outdoor unit silent operation 81

I to start outdoor unit silent operation 81

Outdoor unit silent operation 81

Before using home leave operation 82

Home leave operation 82

I to cancel home leave operation 82

I to start home leave operation 82

To set the temperature and air flow rate for home leave operation 82

I useful in these cases 83

I what s the home leave operation 83

Use as a favorite mode 83

Use as an energy saving mode 83

I to cancel the intelligent eye operation 84

I to start intelligent eye operation 84

Intelligent eye operation 84

Caution 85

I to adjust the angle of the intelligent eye sensor 85

Intelligent eye is useful for energy saving 85

Notes on intelligent eye 85

I to cancel the off timer operation 86

I to use off timer opera tion 86

Timer operation 86

Attention 87

I to cancel on timer operation 87

I to combine on timer and off timer 87

I to use on timer operation 87

Press cancel button 87

Press on timer button 87

Press on timer button again 87

Press timer setting button until the time setting reaches the point you like 87

Note for multi system 88

Selecting the operation mode 88

I maximum power input limitation 89

I priority room setting 89

Operation mode priority 89

Priority when powerful operation is used 89

Priority when using outdoor unit silent operation 89

Care and cleaning 90

Caution 90

I front grille 90

I indoor unit outdoor unit and remote controller 90

Clean or replace each filter 91

Detach the filter element and attach a new one 91

Dry the photocatalytic deodorizing filter in the sun 91

Filters 91

I air filter 91

I air purifying filter green 91

I photocatalytic deodorizing filter gray 91

Maintenance 91

Open the front grille page 24 91

Pull out the air filters 91

Replace approximately once every 3 months 91

Replacement 91

See below 91

Set the air filter air purifying filter and photocatalytic deodorizing filter as they were and close the front grille 91

Take off the air purifying filter photocatalytic deodorizing filter 91

Wash the air filters with water or clean them with vacuum cleaner 91

Air purifying filter without frame 92

Clean the air filters and set them again 92

Dispose of old air filters as non burnable waste and 92

Filters as burnable waste 92

I before a long idle period 92

Operate the fan only for several hours on a fine day to dry out the inside 92

Photocatalytic deodorizing filter and air purifying filter with frame 92

Photocatalytic deodorizing filter without frame 92

Press mode button and select fan operation 92

Press on off button and start operation 92

Take out batteries from the remote controller 92

The paper material is torn or broken during cleaning 92

Turn off the breaker for the room air conditioner 92

Case explanation 93

These cases are not troubles 93

Trouble shooting 93

Troubleshooting 93

Case check 94

Check again 94

Call the service shop immediately 95

Disposal requirements 95

I the power cord is abnormally hot or damaged i an abnormal sound is heard during operation i the safety breaker a fuse or the earth leakage breaker cuts off the operation frequently i a switch or a button often fails to work properly i there is a burning smell i water leaks from the indoor unit 95

Turn the breaker off and call the service shop 95

Warning 95

We recommend periodical maintenance 95

Caution for diagnosis 8 2 problem symptoms and measures 0 3 service check function 1 4 troubleshooting 2 96

Check 26 96

Part 6 part 6 part 6 part 6 service diagnosis service diagnosis service diagnosis service diagnosis 96

Part 6 service diagnosis 96

Caution for diagnosis 97

Indicator lamps 97

Problem symptoms and measures 99

Arc433a1 a2 100

In the arc433a series the temperature display sections on the main unit indicate corresponding codes 1 when the timer cancel button is held down for 5 seconds a 00 indication flashes on the temperature display section 100

Note 1 a short beep and two consecutive beeps indicate non corresponding codes 2 to cancel the code display hold the timer cancel button down for 5 seconds the code display also cancels itself if the button is not pressed for 1 minute 100

Press the timer cancel button repeatedly until a continuous beep is produced 100

Service check function 100

The code indication changes in the sequence shown below and notifies with a long beep 100

Displayed only when system down occurs 101

Error codes and description 101

Troubleshooting 101

Indoor unit pcb abnormality 102

Freeze up protection control or high pressure control 103

Caution be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred 104

Check no refer to p 28 104

If the outdoor air temperature is below 10 c in the cooling mode the system may ge 104

Interrupted with error a5 displayed the system will be reset itself but this stop will be put in the error history memory 104

Service diagnosis 95 104

Sibe12 314 troubleshooting 104

Troubleshooting 104

Check no 6 refer to p 33 105

Detection error due to faulty indoor unit pcb 105

Fan motor ac motor or related abnormality 105

Malfunction decision conditions 105

Method of malfunction detection 105

Operation halt due to breaking of the fan motor lead wires 105

Operation halt due to breaking of wire inside the fan motor 105

Operation halt due to faulty capacitor of the fan motor 105

Operation halt due to short circuit inside the fan motor winding 105

Remote controller display 105

Service diagnosis 105

Supposed causes 105

The rotation speed detected by the hall ic during fan motor operation is used to determine abnormal fan motor operation 105

Troubleshooting 105

Troubleshooting sibe12 314 105

When the detected rotation speed is less than 50 of the hh tap under maximum fan motor rotation demand 105

Thermistor or related abnormality indoor unit 106

Anti icing function 107

Caution be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred 108

Check no refer to p 26 108

Check no refer to p 28 108

Service diagnosis 99 108

Sibe12 314 troubleshooting 108

Troubleshooting 108

A compressor overload is detected through compressor ol 109

Check no 1 refer to p 31 109

Check no refer to p 26 109

Check no refer to p 27 109

Check no refer to p 28 109

Electronic expansion valve defective 109

Four way valve malfunctioning 109

If the compressor ol is activated twice the system will be shut down 109

Malfunction decision conditions 109

Method of malfunction detection 109

Ol activation compressor overload 109

Outdoor unit pcb defective 109

Refrigerant shortage 109

Remote controller display 109

Service diagnosis 109

Stop valve defective 109

Supposed causes 109

The error counter will reset itself if this or any other error does not occur during the following 60 minute compressor running time total time 109

The operating temperature condition is not specified 109

Troubleshooting 109

Troubleshooting sibe12 314 109

Water mixed in the local piping 109

A compressor lock is detected by checking the compressor running condition through the position detection circuit 110

Clearing condition continuous run for about 5 minutes normal 110

Compressor lock 110

Compressor locked 110

Malfunction decision conditions 110

Method of malfunction detection 110

Note if the model doesn t have spm replace the outdoor unit pcb 110

Remote controller display 110

Service diagnosis 101 110

Sibe12 314 troubleshooting 110

Supposed causes 110

The position detection circuit detects a compressor frequency of below 5 hz for several tens of seconds 110

The system will be shut down if the error occurs 16 times 110

Troubleshooting 110

Dc fan lock 111

Input over current detection 112

Caution be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred 113

Check no 4 refer to p 32 113

Check no refer to p 29 113

Check no refer to p 30 113

Note if the model doesn t have spm replace the outdoor unit pcb 113

Service diagnosis 113

Troubleshooting 113

Troubleshooting sibe12 314 113

Four way valve abnormality 114

Caution be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred 115

Check no 1 refer to p 31 115

Check no refer to p 27 115

Check no refer to p 28 115

Service diagnosis 115

Troubleshooting 115

Troubleshooting sibe12 314 115

Discharge pipe temperature control 116

High pressure control in cooling 117

Caution be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred 118

Check no refer to p 26 118

Check no refer to p 28 118

Check no refer to p 29 118

Check no refer to p 30 118

Service diagnosis 109 118

Sibe12 314 troubleshooting 118

Troubleshooting 118

A compressor startup failure is detected by checking the compressor running condition through the position detection circuit 119

Check no 3 refer to p 32 119

Clearing condition continuous run for about 5 minutes normal 119

Compressor itself defective 119

Compressor relay cable disconnected 119

Input voltage out of specification 119

Malfunction decision conditions 119

Method of malfunction detection 119

Outdoor unit pcb defective 119

Position sensor abnormality 119

Remote controller display 119

Service diagnosis 119

Stop valve closed 119

Supposed causes compressor relay cable disconnected 119

The compressor is not running in about 15 seconds after the compressor run command signal is sent 119

The system will be shut down if the error occurs 8 times 119

Troubleshooting 119

Troubleshooting sibe12 314 119

Ct or related abnormality 120

Caution be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred 121

Check no 2 refer to p 31 121

Note if the model doesn t have spm replace the outdoor unit pcb 121

Service diagnosis 121

Troubleshooting 121

Troubleshooting sibe12 314 121

P4 j3 j6 j8 j9 h9 122

Thermistor or related abnormality outdoor unit 122

Caution be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred 123

Check no refer to p 28 123

P4 radiation fin thermistor j3 discharge pipe temperature thermistor j6 outdoor unit heat exchanger temperature thermistor j8 liquid pipe temperature thermistor j9 gas pipe temperature thermistor h9 outdoor air temperature thermistor 123

Service diagnosis 123

Troubleshooting 123

Troubleshooting sibe12 314 123

Electrical box temperature rise 124

Caution be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred 125

Check no refer to p 28 125

Check no refer to p 29 125

Check no refer to p 30 125

Service diagnosis 125

Troubleshooting 125

Troubleshooting sibe12 314 125

Radiation fin temperature rise 126

Caution be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred 127

Check no refer to p 28 127

Check no refer to p 29 127

Check no refer to p 30 127

Service diagnosis 127

Troubleshooting 127

Troubleshooting sibe12 314 127

Output over current detection 128

Caution be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred 129

Check no 3 refer to p 32 129

Check no refer to p 29 129

Check no refer to p 30 129

Note if the model doesn t have spm replace the outdoor unit pcb 129

Service diagnosis 129

Troubleshooting 129

Troubleshooting sibe12 314 129

Insufficient gas 130

Caution be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred 131

Check no refer to p 26 131

Check no refer to p 28 131

Service diagnosis 131

Troubleshooting 131

Troubleshooting sibe12 314 131

An abnormal voltage rise is detected by checking the detection circuit or dc voltage detection circuit 132

An over voltage signal is fed from the over voltage detection circuit to the microcomputer or more than 430 v occurred the voltage detected by the dc voltage detection circuit 132

Clearing condition continuous run for about 60 minutes normal 132

Malfunction decision conditions 132

Method of malfunction detection 132

Note if the model doesn t have spm replace the outdoor unit pcb 132

Over voltage detection 132

Over voltage detector or dc voltage detection circuit defective 132

Pam control part s defective 132

Remote controller display 132

Service diagnosis 123 132

Sibe12 314 troubleshooting 132

Supply voltage not as specified 132

Supposed causes 132

The system will be shut down if the error occurs 4 times 132

Troubleshooting 132

A wrong connection is detected by checking the combination of indoor and outdoor units on the microcomputer 133

Anti icing function in other rooms unspecified voltage between indoor and outdoor units 133

Malfunction decision conditions 133

Method of malfunction detection 133

Operation halt due to the anti icing function in other rooms 133

Operation halt due to unspecified voltage between indoor and outdoor units 133

Pcb wrongly connected 133

Remote controller display 133

Service diagnosis 133

Supposed causes 133

Troubleshooting 133

Troubleshooting sibe12 314 133

Wrong connections at the indoor unit 133

Faulty indoor unit pcb 134

Faulty outdoor unit pcb 134

Indoor unit outdoor unit signal transmission error due to breaking of wire in the connection wires between the indoor and outdoor units the transmission wire 134

Indoor unit outdoor unit signal transmission error due to wiring error 134

Malfunction decision conditions 134

Method of malfunction detection 134

Outdoor unit pcb abnormality or signal transmission circuit abnormality 134

Remote controller display 134

Service diagnosis 125 134

Sibe12 314 troubleshooting 134

Supposed causes 134

The data received from the outdoor unit in indoor unit outdoor unit signal transmission is checked whether it is normal 134

Troubleshooting 134

When the data sent from the outdoor unit cannot be received normally or when the content of the data is abnormal if the indoor unit cannot communicate with the outdoor unit for 15 seconds the system will be shut down 134

Check no conduct the followings to check the electronic expansion valve ev 1 check to see if the ev connector is correctly inserted in the pcb compare the ev unit and the connector number 2 turn the power off and back on again and check to see if all the evs generate latching sound 3 if any of the evs does not generate latching noise in the above step 2 disconnect that connector and check the continuity using a tester check the continuity between pins 1 3 and 6 and between pins 2 4 and 5 if there is no conductivity between the pins the ev coil is faulty 4 if no ev generates latching sound in the above step 2 the outdoor unit pcb is faulty 5 if the continuity is confirmed in the above step 3 mount a good coil which generated latching sound in the ev unit that did not generate latching sound and check to see if that ev generates latching sound 135

Electronic expansion valve check 135

How to check 135

If latching sound is generated the outdoor unit pcb is faulty 135

If latching sound is not generated the ev unit is faulty 135

Note please note that the latching sound varies depending on the valve type 135

Check no 136

Four way valve performance check 136

Service diagnosis 127 136

Sibe12 314 check 136

Check no remove the connectors of the thermistors on the pcb and measure the resistance of each thermistor using tester the relationship between normal temperature and resistance is shown in the graph and the table below 137

Thermistor resistance check 137

Check no 138

Installation condition check 138

Service diagnosis 129 138

Sibe12 314 check 138

Check no 139

Check sibe12 314 139

Discharge pressure check 139

Outdoor unit fan system check with dc motor 139

Service diagnosis 139

Capacitor voltage check 140

Check no 1 140

Check no 2 before this checking be sure to check the main circuit for short circuit 140

Checking the capacitor voltage 140

Inverter units refrigerant system check 140

Service diagnosis 131 140

Sibe12 314 check 140

With the circuit breaker still on measure the voltage according to the drawing be careful never to touch any live parts 140

Check no 3 141

Check no 4 141

Check the continuity with the tester reverse the pins and make sure there is continuity 141

Checking the main circuit electrolytic capacitor 141

Checking the power transistor 141

For the uvw make measurements at the faston terminal on the pcb or the relay connector 141

If unavoidably necessary to touch a live part make sure the power transistor s supply voltage is below 50 v using the tester 141

If unavoidably necessary to touch a live part make sure there is no dc voltage using the tester 141

Main circuit electrolytic capacitor check 141

Never touch any live parts for at least 10 minutes after turning off the circuit breaker 141

Power transistor check 141

Hall ic check 142

Turning speed pulse input on the outdoor unit pcb check 142

Outdoor unit 36 144

Part 7 part 7 part 7 part 7 removal procedure removal procedure removal procedure removal procedure 144

Part 7 removal procedure 144

Outdoor unit 145

Removal of the panels fan motor 145

Pull the fan motor lead wire away 148

Release the four claws and remove the electrical box cover 148

Unscrew the washer fitted nut m10 of the propeller fan with a spanner 148

Removal of the pcb 150

Removal of the electrical box 155

Lift the electrical box up 157

Release the wire clamp from the back side of the electrical box 157

Remove the electrical box 157

Removal of the sound blanket 158

Remove the sound blanket bottom 160

Remove the sound blanket side inner a 160

Remove the sound blanket side inner b 160

Removal of the thermistor 161

Removal of the four way valve 162

Removal of the electronic expansion valve 164

Removal of the compressor 165

Part 8 others 168

Explanation 169

Others 169

Test run from the remote controller 169

Cut the jumper j4 170

Cut the jumper ja on pcb 170

How to set the different addresses 170

Jumper setting 170

Jumper settings 170

Pcb in the indoor unit 170

Remove the front panel 170

Remove the sensor parts cover 2 screws then remove the electric parts box 1 screw 170

Slide the metallic cover to remove it 4 claws on the electric parts box 170

When two indoor units are installed in one room the two wireless remote controllers can be set for different addresses 170

When two units are installed in one room 170

Wireless remote controller in case of wall mounted type 170

Adjusting the angle of the intelligent eye sensor 171

Part 9 appendix 172

Duct connected type 173

Indoor units 173

Piping diagrams 173

Wall mounted type 173

Appendix 165 174

Flks25 35bvmb flxs25 35bvmb 174

Floor ceiling suspended dual type 174

Sibe12 314 piping diagrams 174

Accumulator 175

Appendix 175

Branch pipe 175

Compressor 175

D039392 175

D039394 175

Distributor 175

Feild piping 175

Feild piping liquid 175

Gas pipe 175

Liquid line 175

Mks40bvmb 2amks40bvmb 175

Muffler 175

Mxs40bvmb 2amxs40bvmb 175

Outdoor temparature thermistor doa 175

Outdoor units 175

Piping diagrams sibe12 314 175

Reversing solenoid 175

Room a 175

Room b 175

Stop valve 175

Thermistor dga 175

Thermistor dgb 175

Thermistor do discharge pipe 175

Cdks25 35bvmb cdxs25 35bvmb 176

Duct connected type 176

Ftks25 35bvmb atks25 35bvmb ftxs25 35bvmb atxs25 35bvmb 176

Indoor units 176

Wall mounted type 176

Wiring diagrams 176

Appendix 177

Flks25 35bvmb flxs25 35bvmb 177

Floor ceiling suspended dual type 177

Wiring diagrams sibe12 314 177

Appendix 169 178

Mks40bvmb 2amks40bvmb 178

Mxs40bvmb 2amxs40bvmb 178

Outdoor units 178

Pcb1 pcb2 178

Sibe12 314 wiring diagrams 178

Index index index index 180

Numerics 180

Drawings flow charts 184

Drawings flow charts drawings flow charts drawings flow charts drawings flow charts 184

B series 186

Inverter multi for 2 rooms 186

Manual 186

Service 186

Service manual inverter multi for 2 rooms b series sibe12 314 186

Daikin ATXS35BVMB [2/186] Inverter multi for 2 rooms inverter multi for 2 rooms inverter multi for 2 rooms inverter multi for 2 rooms b series b series b series b series

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