![Daikin FDYM03FAV1C [289/410] Faulty of suction thermistor](/img/pdf.png)
Daikin FDYM03FAV1C [289/410] Faulty of suction thermistor
![Daikin FDYM03FAV1C [289/410] Faulty of suction thermistor](/views2/1764745/page289/bg121.png)
Troubleshooting - Outdoor Unit Related Si18-201
276 Service Diagnosis
3.3.14 Faulty of Suction Thermistor
Outdoor Unit
Indication
J5
Method of
Malfunction
Detection
Malfunction
Decision
Conditions
When the suction temperature sensor became short-circuited or open.
Supposed
Causes
"
Faulty suction temperature sensor
"
Faulty connectors connection of suction temperature sensor
Troubleshooting
AB
1-10°C 117k
Ω
20°C67k
Ω
310°C40k
Ω
420°C25k
Ω
530°C16k
Ω
640°C10k
Ω
750°C7k
Ω
860°C5k
Ω
970°C3k
Ω
Disconnect the thermistor
connectors from outdoor unit
PC board and measure the
resistance of suction
temperature sensor.
Replace thermistor or
thermistor assembly.
If insufficient contact is not
detected, replace outdoor
PC board.
YES
Is the resistance
normal referring to the
table below?
NO
(MF033)
Caution
Be sure to turn off power switch before connect or disconnect connector,
or parts damage may be occurred.
Содержание
- J series 1
- Manual 1
- Service 1
- Si18 201 1
- Bp unit 2
- Cooling only indoor unit 2
- Heat pump indoor unit 2
- Outdoor unit 2
- Super multi plus super multi plus super multi plus super multi plus j series j series j series j series 2
- Table of contents 2
- Change the following values for this model 3
- Important points the model is not equipped with the receiver circuit 3
- Notice special specifications 3
- The following control features are not available 3
- The heating mode is not available because the following parts are not built in 3
- The model is not provided with the surplus refrigerant control function 3
- And name 9 4
- Introduction ix 4
- List of function 4
- Main functions 8 4
- Part 1 list of function 4
- Part 2 specifications 4
- Part 3 printed circuit board connector wiring diagram 4
- Part 4 main functions indoor unit 7 4
- Printed circuit board connector wiring diagram and name 0 4
- Specifications 0 4
- Part 5 main functions outdoor unit bp unit 01 5
- Protection device 07 5
- Refrigerant system and function of functional parts of outdoor unit 03 5
- System control 09 5
- Flow of refrigerant 72 6
- Method of field set 12 6
- Operating test 06 6
- Part 6 flow of refrigerant 71 6
- Part 7 operations 91 6
- Part 8 operating test 05 6
- Part 9 service diagnosis 25 6
- Remote controller 92 6
- Troubleshooting split type indoor unit 26 6
- Bp unit trouble diagnosis 10 7
- For bpmk928b42 43 12 7
- Indoor unit 42 7
- Installation 44 7
- Others 54 7
- Outdoor unit 20 7
- Part 10removal procedure 11 7
- Part 11cautions before operation 43 7
- Troubleshooting outdoor unit related 60 7
- Troubleshooting skyair indoor unit 46 7
- Wiring 48 7
- Drawings flow charts v 8
- Index i 8
- Part 12appendix 59 8
- Piping diagrams 60 8
- Wiring diagrams 70 8
- Cautions in repair 10
- Introduction 10
- Safety cautions 10
- Warning 10
- Caution 11
- Cautions regarding products after repair 11
- Warning 11
- Caution 12
- Inspection after repair 12
- Warning 12
- Caution 13
- Icons are used to attract the attention of the reader to specific information the meaning of each icon is described in the table below 13
- Using icons 13
- Using icons list 13
- List of function 14
- Part 1 list of function 14
- Part 1 part 1 part 1 part 1 list of function list of function list of function list of function 14
- For flk flx50 60j 15
- For flk flx50 60j 2 15
- Function list for general 15
- List of function 15
- List of function si18 201 15
- Function list for china 16
- List of function 3 16
- Si18 201 list of function 16
- Function list for taiwan 17
- List of function 17
- List of function si18 201 17
- For flx50 60j 18
- For flx50 60j 2 18
- Function list for europe 18
- List of function 5 18
- Si18 201 list of function 18
- Function list for singapore malaysia indonesia 19
- List of function 19
- List of function si18 201 19
- For flk flx50 60j 20
- For flk flx50 60j 2 20
- Function list for australia 20
- List of function 7 20
- Si18 201 list of function 20
- For flx50 60j 21
- For flx50 60j 2 21
- Function list for europe 21
- List of function 21
- List of function si18 201 21
- Part 2 part 2 part 2 part 2 specifications specifications specifications specifications 22
- Part 2 specifications 22
- Specifications 0 22
- Bp unit 23
- Branch piping 23
- Cooling only 23
- Indoor unit 23
- Main piping 23
- Outdoor unit 23
- Outdoor units 23
- Specifications 23
- Bp unit 24
- Branch piping 24
- Hz 220v 24
- Indoor unit 24
- Main piping 24
- Outdoor unit 24
- Si18 201 specifications 24
- Specifications 11 24
- Bp unit 25
- Branch piping 25
- Hz 220 230 240v 60hz 220 230v 25
- Indoor unit 25
- Main piping 25
- Outdoor unit 25
- Specifications 25
- Specifications si18 201 25
- Bp unit 26
- Branch piping 26
- Hz 220 230 240v 60hz 220 230v 26
- Indoor unit 26
- Main piping 26
- Outdoor unit 26
- Si18 201 specifications 26
- Specifications 13 26
- Bp unit 27
- Branch piping 27
- Heat pump 27
- Hz 220 240v 60hz 220 230v 27
- Indoor unit 27
- Main piping 27
- Outdoor unit 27
- Specifications 27
- Specifications si18 201 27
- Bp unit 28
- Branch piping 28
- Hz 220 230v 28
- Indoor unit 28
- Main piping 28
- Outdoor unit 28
- Si18 201 specifications 28
- Specifications 15 28
- Bp unit 29
- Branch piping 29
- Hz 220 240v 60hz 220 230v 29
- Indoor unit 29
- Main piping 29
- Outdoor unit 29
- Specifications 29
- Specifications si18 201 29
- Bp unit 30
- Branch piping 30
- Hz 220 230 240v 60hz 220 230v 30
- Indoor unit 30
- Main piping 30
- Outdoor unit 30
- Si18 201 specifications 30
- Specifications 17 30
- Bp units 31
- Hz 220 240v 60hz 220 230v 31
- Specifications 31
- Specifications si18 201 31
- Cooling only 32
- Indoor units for general 32
- Kw class 32
- Wall mounted type 32
- Hz 220 230 240v 60hz 220 230v 33
- Kw class 33
- Specifications 33
- Specifications si18 201 33
- Hz 220 230 240v 60hz 220 230v 34
- Kw class 34
- Si18 201 specifications 34
- Specifications 21 34
- Duct connected type 35
- Hz 220 230 240v 60hz 220 230v 35
- Kw class 35
- Specifications 35
- Specifications si18 201 35
- Hz 220 230 240v 60hz 220 230v 36
- Kw class 36
- Si18 201 specifications 36
- Specifications 23 36
- Floor ceiling suspended dual type 37
- Hz 220 230 240v 60hz 220 230v 37
- Kw class 37
- Specifications 37
- Specifications si18 201 37
- Hz 220 230 240v 60hz 220 230v 38
- Kw class 38
- Si18 201 specifications 38
- Specifications 25 38
- Ceiling mounted cassette type skyair 39
- Hz 220 230 240v 60hz 220 230v 39
- Kw class 5 kw class 39
- Kw class 7 kw class 39
- Specifications 39
- Specifications si18 201 39
- Duct connected type skyair 40
- Hz 220 230 240v 40
- Hz 220 230v 40
- Kw class 7 kw class 40
- Si18 201 specifications 40
- Specifications 27 40
- Heat pump 41
- Hz 220 230 240v 60hz 220 230v 41
- Kw class 3 kw class 41
- Kw class 6 kw class 41
- Specifications 41
- Specifications si18 201 41
- Wall mounted type 41
- Hz 220 230 240v 60hz 220 230v 42
- Kw class 42
- Si18 201 specifications 42
- Specifications 29 42
- Duct connected type 43
- Hz 220 230 240v 60hz 220 230v 43
- Kw class 3 kw class 43
- Kw class 6 kw class 43
- Specifications 43
- Specifications si18 201 43
- Floor ceiling suspended dual type 44
- Hz 220 230 240v 60hz 220 230v 44
- Kw class 3 kw class 44
- Kw class 6 kw class 44
- Si18 201 specifications 44
- Specifications 31 44
- Ceiling mounted cassette type skyair 45
- Hz 220 230 240v 60hz 220 230v 45
- Kw class 5 kw class 45
- Kw class 7 kw class 45
- Specifications 45
- Specifications si18 201 45
- Duct connected type skyair 46
- Hz 220 230 240v 46
- Hz 220 230v 46
- Kw class 7 kw class 46
- Si18 201 specifications 46
- Specifications 33 46
- Cooling only 47
- Hz 220v 47
- Indoor units for china 47
- Specifications 47
- Specifications si18 201 47
- Wall mounted type 47
- Duct connected type 48
- Hz 220v 48
- Si18 201 specifications 48
- Specifications 35 48
- Floor ceiling suspended dual type 49
- Hz 220v 49
- Specifications 49
- Specifications si18 201 49
- Ceiling mounted cassette type skyair 50
- Duct connected type skyair 50
- Hz 220v 50
- Si18 201 specifications 50
- Specifications 37 50
- Heat pump 51
- Hz 220v 51
- Specifications 51
- Specifications si18 201 51
- Wall mounted type 51
- Duct connected type 52
- Hz 220v 52
- Si18 201 specifications 52
- Specifications 39 52
- Duct connected type 53
- Hz 220v 53
- Specifications 53
- Specifications si18 201 53
- Floor ceiling suspended dual type 54
- Hz 220v 54
- Si18 201 specifications 54
- Specifications 41 54
- Ceiling mounted cassette type skyair 55
- Duct connected type skyair 55
- Hz 220v 55
- Specifications 55
- Specifications si18 201 55
- 3 kw class 56
- 6 kw class 56
- Cooling only 56
- Indoor units for taiwan 56
- Wall mounted type 56
- Hz 220v 57
- Kw class 57
- Specifications 57
- Specifications si18 201 57
- Duct connected type 58
- Hz 220v 58
- Si18 201 specifications 58
- Specifications 45 58
- Floor ceiling suspended dual type 59
- Hz 220v 59
- Specifications 59
- Specifications si18 201 59
- Ceiling mounted cassette type skyair 60
- Duct connected type skyair 60
- Hz 220v 60
- Si18 201 specifications 60
- Specifications 47 60
- Heat pump 61
- Hz 220v 61
- Kw class 3 kw class 61
- Kw class 6 kw class 61
- Specifications 61
- Specifications si18 201 61
- Wall mounted type 61
- Hz 220v 62
- Kw class 62
- Si18 201 specifications 62
- Specifications 49 62
- Floor ceiling suspended dual type 63
- Hz 220v 63
- Specifications 63
- Specifications si18 201 63
- Ceiling mounted cassette type skyair 64
- Duct connected type skyair 64
- Hz 220v 64
- Si18 201 specifications 64
- Specifications 51 64
- Heat pump 65
- Indoor units for europe 65
- Kw class 3 kw class 65
- Wall mounted type 65
- Hz 230v 66
- Kw class 66
- Kw class 6 kw class 66
- Si18 201 specifications 66
- Specifications 53 66
- Duct connected type 67
- Hz 230v 67
- Kw class 3 kw class 67
- Kw class 6 kw class 67
- Specifications 67
- Specifications si18 201 67
- Hz 230v 68
- Kw class 3 kw class 68
- Kw class 6 kw class 68
- Si18 201 specifications 68
- Specifications 55 68
- Floor ceiling suspended dual type 69
- Hz 230v 69
- Kw class 3 kw class 69
- Kw class 6 kw class 69
- Specifications 69
- Specifications si18 201 69
- Floor standing type 70
- Hz 230v 70
- Kw class 3 kw class 70
- Si18 201 specifications 70
- Specifications 57 70
- Part 3 part 3 part 3 part 3 printed circuit board printed circuit board printed circuit board printed circuit board connector wiring diagram connector wiring diagram connector wiring diagram connector wiring diagram and name and name and name and name 72
- Part 3 printed circuit board connector wiring diagram and name 72
- Printed circuit board connector wiring diagram and name 0 72
- Branch provider unit bpmk928b42 b43 73
- Printed circuit board connector wiring diagram and name 73
- Outdoor unit rmk x 140jvmt c 9 8 rmk140javm rmx140jvmb rmk x 140jzvma b 74
- Ftk25 35j series ftx25 35j series ftxd25 35k series fvx25 35k series 77
- Printed circuit board 1 3 78
- Printed circuit board 1 3 detail 78
- Printed circuit board connector wiring diagram and name 65 78
- Si18 201 printed circuit board connector wiring diagram and name 78
- Ftk50 60hv series ftkd50 71jv series ftx50 60hv series ftxd50 71jv series 79
- Cdx25 60hav series cdk25 60hav series 81
- Printed circuit board 1 3 82
- Printed circuit board 1 3 detail 82
- Printed circuit board connector wiring diagram and name 69 82
- Si18 201 printed circuit board connector wiring diagram and name 82
- Flk25 60hv series flx25 60hv series flk50 60jv series flx50 60jv series 83
- Fhyc35 71kv series 86
- Printed circuit board 87
- Fdym60fa fdym03fa series 88
- Printed circuit board 89
- Part 4 main functions indoor unit 90
- Main functions 91
- Main functions in split type 91
- Power airflow flap diffuser 91
- Wide angle louvers 92
- Horizontal auto swing up and down 93
- Cooling dry heating operation for heat pump model 94
- Cooling dry operation for cooling only model 94
- Note notes on flap angles the diffuser is kept open in dry cool or fan mode 94
- Note unless swing is selected you should set the flap at a near horizontal angle in cool or dry mode to obtain the best performance 94
- 3 step flow 95
- Wide angle flaps louvers and auto swing 95
- Automatic air flow control for cooling 97
- Automatic air flow control for heating 97
- Fan speed control for indoor units 97
- For ftk x 25 35j ftk x 50 60 h series control mode 97
- For more information about hall ic refer to hall ic check a6 on page 309 97
- Hh powerful 97
- J type 800 980 rpm during powerful operation 1050 rpm 97
- Ll cooling thermostat off l 97
- Main functions 97
- Main functions si18 201 97
- Note 1 during powerful operation fan operate h tap 50 70 rpm 2 fan stops during defrost operation 97
- Note when there is no operation and the night set mode turns on the step is low refer to night set mode on page 89 97
- Phase steps phase control and fan speed control contains 8 steps lll ll l ml m hm h and hh 97
- Step cooling heating dry mode lll heating thermostat off h type 500 860 rpm during powerful operation 850 910 rpm 97
- 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 97
- The following drawing explains the principle for fan speed control for heating 97
- The following drawing explains the principle of fan speed control for cooling 97
- Within this range the airflow rate is automatically controlled when the airflow adjusting button is set to automatic 97
- Air purifying filter 98
- On off button on indoor unit 98
- Signal receiving sign 98
- Washable grille 98
- Filter cleaning indicator 99
- Hot start function heat pump only 100
- Mold proof air filter 100
- Pre heat operation heat pump only 100
- Program dry function 100
- Automatic operation heat pump only 101
- Auto restart function 102
- Night set mode 102
- Self diagnosis digital display 102
- Self diagnosis led display 102
- A micro computer 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 103
- For ftk x 25 35 j series only outline 103
- In case of fan mode the fan speed reduces by 50 rpm 103
- Intelligent eye 103
- Main functions 103
- Main functions si18 201 103
- Processing 1 detection method by human motion sensor 103
- The function that detects existence of humans in the air conditioned room and reduces the capacity when no humans are available in the room in order to save electricity by means of a human motion sensor 103
- The motions for example in cooling 103
- This sensor detects human motion by receiving infrared rays and displays the pulse wave output 103
- When a micro computer doesn t have a signal from the sensor in 20 minutes it judges that no body is in the room and turns off the human detection led 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 103
- Good sleep cooling control 104
- By the function of the microcomputer program dry operation reduces the humidity keeping the temperature in a minimum drop room temperature and air volume can not be controlled by room temperature adjusting button and air volume adjusting button because they are controlled automatically when the program dry function starts dry operation is provided and then it repeats 5 minute suspension and 4 minute dry operation alternately when the room temperature rises it repeats the above process from the beginning 105
- Dry operation activating compressor on temperature 105
- Note 1 the program dry function is not operated when the room temperature is at 18 c or less 2 in monitoring operation fan rotates 5 seconds after the compressor starts its operation 105
- Program dry operation 105
- Room temperature difference between activation and suspension of dry operation 105
- Cooling monitoring function 106
- Auto restart function 107
- Auto swing of flap s 107
- Freeze protection function 107
- Minutes standby function 107
- Air flow automatic auto fan speed 108
- Night set mode function 108
- Emergency operation function on off switch 109
- Powerful operation 109
- Filter check indicator 110
- Skyair 111
- Cautions 113
- Cautions when skyair auto fan are used 113
- Heat pump model 113
- The corresponding models 113
- Part 5 main functions outdoor unit bp unit 114
- Part 5 part 5 part 5 part 5 main functions main functions main functions main functions outdoor unit bp unit outdoor unit bp unit outdoor unit bp unit outdoor unit bp unit 114
- Protection device 07 114
- Refrigerant system and function of functional parts of outdoor unit 03 114
- System control 09 114
- Bp unit 116
- Main functions 103 116
- Refrigerant system and function of functional parts of outdoor unit 116
- Si18 201 refrigerant system and function of functional parts of outdoor unit 116
- Major functional parts 117
- Protective devices thermistors sensors 119
- Outdoor unit 120
- Protection device 120
- Bp unit 121
- Before equalizing 122
- Compressor off 122
- Compressor on 122
- Cooling 122
- Cooling heating 122
- Feedback control 122
- Heating 122
- Main functions 109 122
- Minutes standby 122
- Operation start 122
- Outline of system control 122
- Power supply on 122
- Si18 201 system control 122
- Start up standby operation 122
- System control 122
- System protection control 122
- Unit stop standby control 122
- Mode configuration 123
- Standby control at power on 124
- Cooling heating standby operation at startup 125
- Main functions 125
- Purpose of the function to prepare for the next startup after operation shutdown and to collect refrigerant into the receiver in order to prevent liquid refrigerant from returning to the accumulator and compressor at startup 125
- Standby operation 125
- System control si18 201 125
- Equalizing control 126
- Equalizing control in cooling 126
- Main functions 113 126
- Purpose of the function to provide equalizing control after a standby operation in order to prevent the compressor from locking due to insufficient equalizing and to ensure smooth compressor startup 126
- Si18 201 system control 126
- Equalizing control in heating 127
- Main functions 127
- System control si18 201 127
- D signals difference between room temperature and temperature setting from bp units are used to determine the frequency corresponding to the capacities of the indoor units connected to the bp units this function is also described in the following section method of determining frequency 128
- Determination of initial frequency 128
- Determination of operation frequency 128
- Method of determining frequency the compressor operating frequency is determined in the following steps 1 selection of command frequency fsr 2 selection of upper limit frequency fmax 3 selection of lower limit frequency fmin 4 selection of restriction frequency fsg 5 execution of prohibit frequency skip control 6 selection of target frequency fmk 128
- Outline 128
- Purpose of the function to control the operating frequency in order to ensure compressor reliability and optimise the operating condition 128
- 3 based on the 129
- Bp unit command conversion 129
- D room temperature 129
- D signal from indoor unit the following calculation is performed 129
- D signals from bp units are used as the 129
- Determination of s value there are two types of indoor unit capacities from individual bp units one is the 129
- Processing during powerful operation mode 1 when powerful command is received from indoor units one or more units 2 thermostats are not off in room units from which powerful commands are issued 129
- S value 129
- S value and bp operation 129
- S value and outdoor unit connection 129
- S value and outdoor unit operation 129
- S value in this manual outdoor unit connection 129
- S value is referred to as 129
- S value of the connected indoor unit and the other is the 129
- S value of the indoor unit which receives an operation demand for the same mode as that of the outdoor unit they are called h u connection 129
- S value respectively the sums of those s values of bp units are called outdoor unit connection 129
- Temperature setting signals from bp units are converted to 129
- Value determined by 129
- Value in frequency commands excludes when powerful function is in operation 129
- Values 129
- When the above conditions are met the powerful operation mode is activated and the following processes are conducted 129
- Determination of initial frequency 130
- Determination of initial frequency for cooling initial frequency fsr is determined based on the correction of outside air temperature doa and discharge pipe temperature do in accordance with the above matrix fsr kfido 2 128 doa 35 c fini1 fini1 131
- Dofini 45 c kfido kfidoh 128 128 hot start when do dofini 45 c kfido kfidol 179 128 cold start 131
- Kfido varies depending on discharge pipe temperature do when do 131
- Determination of initial frequency for heating initial frequency fsr is determined based on the correction of outside air temperature doa and discharge pipe temperature do in accordance with the above matrix fsr kfido 5 128 doa 15 c fini1 fini1 132
- Dofini 45 c kfido kfidoh 128 128 hot start when do dofini 45 c kfido kfidol 179 128 cold start 132
- Kfido varies depending on discharge pipe temperature do when do 132
- Oil return operation 133
- Main functions 121 134
- Oil recovery operation in heating mode 134
- Si18 201 system control 134
- Defrost operation 135
- Details 135
- Main functions 135
- Outline during heating operation the outdoor heat exchanger intermediate temperature of a frosted unit is estimated based on the outdoor temperature and compressor output frequency if the outdoor heat exchanger intermediate temperature is lower than the estimated defrosting temperature the unit is considered to be frosted therefore the compressor is stopped and the cooling cycle is activated for a defrosting operation reverse cycle defrost the defrosting operation stops when a certain time elapse or when the outdoor heat exchanger liquid pipe temperature reaches the preset temperature level 135
- System control si18 201 135
- Details 136
- Heating standby operation cooling standby operation 136
- Main functions 123 136
- Outline in local air conditioner control mode and frequency fix mode this function collects surplus refrigerant in the receiver before the operation mode is changed from cooling or the compressor stops due to thermostat off this ensures proper oil level and dilution for the next startup operation this function is also activated before cooling operation starts in units that have not completed the standby operation 136
- Pre equalization standby operation 136
- Si18 201 system control 136
- Details equalizing control in cooling 137
- Equalizing control 137
- Main functions 137
- Outline this function provides equalizing control after a standby operation in order to prevent the compressor from locking due to insufficient equalization and to ensure smooth compressor startup 137
- System control si18 201 137
- Equalizing control in heating 138
- Main functions 125 138
- Si18 201 system control 138
- Capacity control 139
- Outdoor unit motorized valve low pressure cooling capacity control 139
- Outdoor unit motorized valve high pressure heating capacity control 140
- Peak cut control 141
- Freeze up prevention 142
- Gas shortage malfunction 143
- Details 144
- Discharge pipe control 144
- Main functions 131 144
- Outline with the internal compressor temperature used as a substitute of the discharge pipe temperature when the discharge pipe temperature exceeds the specified level the discharge pipe control regulates the upper limit of the output frequency to prevent the internal pressure from rising this function serves the same purpose as the discharge pipe high temperature control that regulates the motorized valve 144
- Si18 201 system control 144
- With each operation of the discharge pipe temperature malfunction operation counter the above zone judgment temperature is decreased by 2 c 144
- Input current control 145
- Input current control i 145
- 24 44 22 146
- 27 24 27 146
- 27 28 27 146
- 27 32 27 146
- 27 36 27 146
- 27 40 25 146
- Details the input current is used to control the upper limit of the operating frequency in order to maintain the temperature around the electric parts under a certain level during cooling overload condition 146
- Main functions 133 146
- Outside air temperature i3ch 146
- Si18 201 system control 146
- Similarly the input current value in controlled in inverter microcomputers to protect the inverter parts 146
- When the outside temperature doa is higher than 38 c input current upper limit value i3ch 27 a is decreased at a rate of 96 128 a c 146
- Input current control ii high pressure control 147
- Details the lower limit of operating frequency fcg is set according to following formula and diagram when the outside air temperature doa is 6 c or lower during heating operation fcg kcg1w outside air temp doa fcg7w 102 64 doa 28 148
- Outline when the outside air temperature is low the lower limit of operating frequency is restricted to ensure the compressor suction air humidity 148
- Wet protection control i 148
- Electric parts cooling and electric parts fin temperature control 149
- Differential pressure control 150
- Details the year round cooling only function provides two types of shutdown function one is based on the outside temperature and high pressure equivalent saturation temperature and the other is based only on the outside temperature 151
- Outline this function turns off the compressor based on the conditions of the outside temperature and high pressure equivalent saturation temperature to ensure compressor reliability 151
- The shutdown function based on the outside temperature and high pressure equivalent saturation temperature stops the operation when sufficient differential pressure cannot be ensured in the compressor the shutdown function based on the outside temperature prevent compressor operation when the temperature is outside of the operation area 151
- Year round cooling only function 151
- Nighttime low noise control 152
- Pi control 153
- Warm up function 154
- Compressor protection control 155
- Details 155
- More than 2 hours after power reset 155
- On edge this function is inactive during defrost control 155
- Outline the following upper limit frequency control is provided at the compressor of 155
- Purpose of the function this function ensures appropriate compressor oil level and dilution at startup 155
- Fan control 156
- Fan control under normal condition 156
- Fan off delay control 157
- Motorized valve control of outdoor unit 158
- Outline of motorized valve control 158
- Evg gas pipe motorized valve opening restriction 159
- Evp opening restriction there are two types of evp control complete closing and completely closing with retightening evp s max opening is set to evpmax evp s min opening is set to evpmin 159
- In capacity control during normal heating operation evl not fully closed during normal cooling operation 159
- Main functions 159
- Not in capacity control during normal heating operation elv fully closed during normal cooling operation after tevgard elapsed 30 sec or more 159
- Outdoor unit motorized valve opening restriction 159
- Outline this function restricts the opening degree of the outdoor unit motorized valves discharge bypass motorized valve gas pipe motorized valve and liquid pipe motorized valve in order to quickly stabilize and control the system 159
- System control si18 201 159
- The motorized valve operates as follows when it is fully closed and at min opening when evp closes from open condition evp open condition evpmin is set as the lower limit when it closes from evpmin the next motorized valve opening degree is set to 0 pulse fully closed condition evp is in the fully closed condition from 0 pulse to evpdp pulses and the opening degree increments in the fully closed condition evpdp pulses is set as the upper limit when it opens from the evpdp condition the next valve opening degree is set to evpmin evpdp to achieve evp open condition 159
- Evl liquid pipe motorized valve opening restriction evl liquid pipe motorized valve 160
- Outdoor unit motorized valve control in startup and during the number of operating room units change 161
- Outdoor unit motorized valve control during high discharge pipe temperature 162
- Outdoor units motorized valve control by target discharge pipe temperature 163
- Cooling outdoor unit sc control 164
- Bp unit motorized valve control 165
- Bp unit motorized valve control at startup and during the number of operating room units change 165
- Bp unit motorized valve control during frequency change 165
- Motorized valve flow rate restriction 165
- Control based on absolute flow rate instruction 166
- Full closing of motorized valves 166
- Control based on relative flow rate instruction 167
- Gas pipe isothermal control in cooling operation 168
- Qhenc 0 2 nm³ hr 169
- Qhenc 0 2 the following condition is set qrga 169
- The motorized valve operating amount is determined based on deviation ega between each room unit s gas pipe temperature and of dgav after gftuyu correction and previous deviation egaz example the following example is based on room a ega dga dgav when the operating flow rate of eva is qrga qrga kpcb 0 5 ega egaz kib 0 2 ega egaz 0 5 ega egaz 0 16 ega egaz when qrga 169
- Closes the valve of that room unit 170
- Details the gas pipe temperature and indoor heat exchanger temperature are detected at the time of every sampling time of 40 sec for the cooling sh control 170
- However the closing operation is restricted to prevent the valve operation that results in a flow rate that exceeds a certain level at one time when the liquid pipe temperature is higher than the heat exchanger temperature the motorized valve is opened without providing the above control protection function to prevent rotor dew condensation 170
- In order to prevent dew condensation in connection pipe gas pipe lower limit temperature is set as follows gas pipe lower limit temperature 0 doa 1 170
- Opens the valve of that room unit when sh is lower than average 170
- Outline the heat exchanger temperatures and gas pipe temperatures of operating room units are detected by the gas pipe thermistors and the motorized valves flow rates are corrected so as to adjust each room unit s heat exchanger temperature and gas pipe temperature hereafter referred to as sh close to the target values 170
- Purpose of the function this function ensures appropriate refrigerant distribution when many room units are operating in the cooling mode 170
- Sh control in cooling operation 170
- When sh is higher than average 170
- Closes the valve of that room unit 172
- However the valve operating amount is restricted to prevent a flow rate that exceeds a certain level at one time for improvement of stability and convergibility performance 172
- Main functions 159 172
- Opens the valve of that room unit when sh is lower than target sc 172
- Outline the function serves the following two main purposes 1 appropriate refrigerant distribution to each room unit in the case of heating sc control 2 the motorized valves of only operating room units are regulated in the case of heating sc control 1 the motorized valves of all room units including non operating units are operated 2 determination of the location accumulator receiver non operating room units operating room units to collect refrigerant in accordance with the connection pattern extended piping single room connection 172
- Purpose of the function this function ensures appropriate refrigerant distribution when room units are operating in the heating mode 172
- Sc control in heating operation 172
- Si18 201 system control 172
- The determination of the location accumulator receiver non operating room units operating room units to collect refrigerant is determined in accordance with the connection pattern extended piping single room connection 172
- To ensure appropriate refrigerant distribution to each room unit each room unit s liquid pipe temperature and heat exchanger intermediate temperature are detected and the motorized valve opening degrees are corrected so sc reaches the target sc determined based on the supply capacity and the temperature difference between the discharge pipe temperature and target discharge pipe temperature 172
- When sh is higher than target sc 172
- Current sc evr closed target sc current sc evr opened 173
- Details the heat exchanger intermediate temperature and liquid pipe temperature are detected at every sampling time of 60 sec of the heating sc control the range of target sc 3 c 173
- Main functions 173
- System control si18 201 173
- Heat exchanger isothermal control in heating operation 174
- Bp unit motorized valve control in high discharge pipe temperature 175
- When the discharge pipe temperature exceeds a certain level during compressor operation this function opens the motorized valve to return the refrigerant to a low pressure level in order to cool the compressor with refrigerant and lower the discharge temperature 175
- Inter bp units heating heat exchanger isothermal control 176
- Inter bp units gas pipe isothermal control 177
- Bp unit motorized valve control by target discharge pipe temperature 178
- Way valve operation 179
- Way valve operation security 179
- Way valve switching 179
- Jis mode 180
- Details 181
- Main functions 181
- Outline when the pump down button is pressed the following control is provided to collect refrigerant in the receiver 181
- Pump down operation 181
- System control si18 201 181
- Even if the stop zone is reached the zone remains as the drooping zone for 540 sec 182
- Freeze up prevention control based on the freeze up prevention status information sent from the bp unit indoor unit the zones are produced to prevent freezing up of the indoor heat exchanger 182
- Main functions 169 182
- Peak cut control based on the heat exchanger temperature information sent from the indoor unit the zones are produced to prevent abnormal rise of the high pressure 182
- Protection control of skyair indoor units 182
- Si18 201 system control 182
- Skyair indoor unit peak cut zone 182
- The zones for skyair indoor unit peak cut control is produced in the bp unit 182
- Flow of refrigerant 72 184
- Part 6 flow of refrigerant 184
- Part 6 part 6 part 6 part 6 flow of refrigerant flow of refrigerant flow of refrigerant flow of refrigerant 184
- Flow of refrigerant 185
- Flow of refrigerant si18 201 185
- Flow of refrigerant 173 186
- Full close 186
- H evl 120 pls h evp full open evg full close evu full close evt full close evh full close 186
- High pressure liquid refrigerant high pressure high temp gas refrigerant low pressure low temp liquid or gas refrigerant 186
- Productive operation patterns on stopping the cooling operation on starting the cooling operation when cooling standby operation has not completed yet 186
- Securing the reliability oil dilution proof in particular of the compressor by the liquid return to accumulator when starting the cooling operation the unit drains the refrigerant in the accumulator and storage the liquid refrigerant in the condenser and receiver after stopping the cooling operation consequently fully open the evp to evaporate the liquid refrigerant in the accumulator fully close each indoor unit motorized valves evu evt fully open evl in order to storage the liquidrefrigerant in the receiver while fully close evg 186
- Si18 201 flow of refrigerant 186
- Standby operation cooling 186
- Equalizing control cooling 187
- Evl 100 pls h evp full open evg full close evu full close evt full close evh full close 187
- Flow of refrigerant 187
- Flow of refrigerant si18 201 187
- High pressure liquid refrigerant high pressure high temp gas refrigerant low pressure low temp liquid or gas refrigerant 187
- Productive operation patterns when the cooling standby operation has been completed 187
- When conducting the equalizing control after completing the standby operation fully close each room motorized valves evu evt and evg evl and fully open evp only for the equalizing control 187
- 1 oil collecting operation in main pipe this operation aims to collect oil in the main gas pipe full closing evp evl and increasing the operating frequency for enlarging the gas flow rate result the drop of low pressure there fore set the evh to specified opening to conduct oil collecting operation 2 oil collecting operation of non operating room bp unit in case other bp has operating room unit s and rest bp with non operating room units continues for 90 minutes for the purpose of collecting oil in the liquid refrigerant stagnated between refnet joint and bp unit fully open evh of bp unit of the non operating room to conduct oil collecting operation 188
- Evl 100 450 pls evp 0 200 pls h evg full open or 60 100 pls evu ordinal control evt ordinal control close h evh full open 188
- Flow of refrigerant 175 188
- High pressure liquid refrigerant high pressure high temp gas refrigerant low pressure low temp liquid or gas refrigerant 188
- Oil return operation cooling 188
- Productive operation patterns oil collecting operation in cooling 188
- Si18 201 flow of refrigerant 188
- A pressure difference must be kept in cooling mode with low outside temperature in order to maintain the compressor reliability to ensure such pressure difference keep the evl fully open and let the refrigerant stay in the outdoor heat exchanger system control motorized valve evg each room distribution control motorized valve evu 189
- Flow of refrigerant 189
- Flow of refrigerant si18 201 189
- H evl sc control not fully closed h evp freeze up protection control h evg target discharge pipe temperature control evu sh control evt full close evh full close 189
- High pressure liquid refrigerant high pressure high temp gas refrigerant low pressure low temp liquid or gas refrigerant 189
- Low outside air temperature cooling 189
- Productive operation patterns cooling 1 room operation 2 kw 1 room operation with low outside air temperature 189
- All room operation cooling 190
- As the refrigerant circuit is in the status of no receiver provided the same control as the conventional super multi type is conducted system control motorized valve evu each room distribution control motorized valve evu 190
- Conditions evl is fully opened via outdoor unit sc control 190
- Flow of refrigerant 177 190
- Full close 190
- H evl sc control full close evp full close evg 0 to 100 pls evu target discharge pipe temperature control gas pipe isothermal control evt full close evh full close 190
- High pressure liquid refrigerant high pressure high temp gas refrigerant low pressure low temp liquid or gas refrigerant 190
- Productive operation patterns all room operation 190
- Si18 201 flow of refrigerant 190
- As the refrigerant circuit is in the status of no receiver provided the same control as the conventional super multi type is conducted system control motorized valve evu each room distribution control motorized valve evu 191
- Conditions evl is fully opened via outdoor unit sc control 191
- Flow of refrigerant 191
- Flow of refrigerant si18 201 191
- H evl sc control full close evp full close evg 0 to 100 pls evu target discharge pipe temperature control gas pipe isothermal control evt full close evh full close 191
- High pressure liquid refrigerant high pressure high temp gas refrigerant low pressure low temp liquid or gas refrigerant 191
- Multi room operation no surplus refrigerant cooling 191
- Productive operation patterns status of no surplus refrigerant in multi room operation 191
- As the surplus refrigerant is treated with the receiver opening evl stagnates the liquid refrigerant in the receiver the entire system control suction overheat is conducted by the adjustment of the surplus refrigerant amount in the receiver via evg bp motorized valve is exclusively used for the distribution control and evu is used for sh control system control motorized valve evg each room distribution control motorized valve evu 192
- Conditions evl is not fully closed via outdoor unit sc control 192
- Flow of refrigerant 179 192
- H evl sc control not fully closed evp full close evg target discharge pipe temperature control evu sh control evt full close evh full close 192
- High pressure liquid refrigerant high pressure high temp gas refrigerant low pressure low temp liquid or gas refrigerant 192
- Multi room operation cooling with surplus refrigerant 192
- Productive operation patterns partial load operation 192
- Si18 201 flow of refrigerant 192
- 1 room operation indoor unit with large capacity cooling 193
- As the surplus refrigerant is treated with the receiver opening evl dwells the liquid refrigerant in the receiver the entire system control suction overheat is conducted by the adjustment of the surplus refrigerant amount in the receiver via evg bp motorized valve is exclusively used for the distribution control and evu is used for sh control system control motorized valve evg each room distribution control motorized valve evu 193
- Conditions evl is not fully closed via outdoor unit sc control 193
- Evl sc control not fully closed evp full close h evg target discharge pipe temperature control evu sh control evt full close evh full close 193
- Flow of refrigerant 193
- Flow of refrigerant si18 201 193
- High pressure liquid refrigerant high pressure high temp gas refrigerant low pressure low temp liquid or gas refrigerant 193
- Productive operation patterns 1 room operation with large capacity indoor unit 193
- Conditions when the operating frequency droops at the minimum frequency with freeze up protection control 194
- Evl sc control not fully closed h evp freeze up protection control evg target discharge pipe temperature control evu sh control evt full close evh full close 194
- Flow of refrigerant 181 194
- High pressure liquid refrigerant high pressure high temp gas refrigerant low pressure low temp liquid or ga 194
- In case the freeze up protection control stays within the drooping zone even when the operation frequency becomes the lower limit frequency increasing the opening of evp motorized valve conducts evp control to stabilize at the no change zone as the surplus refrigerant is treated with the receiver opening evl stagnates the liquid refrigerant in the receiver with evl open the entire system control suction overheat is conducted by the adjustment of the surplus refrigerant amount in the receiver via evg bp motorized valve is exclusively used for the distribution control and evu is used for sh control system control motorized valve evg each room distribution control motorized valve evu 194
- Productive operation patterns 1 room operation 2 kw 1 room operation 194
- Room operation indoor unit with small capacity 2 kw cooling 194
- Si18 201 flow of refrigerant 194
- Flow of refrigerant 195
- Flow of refrigerant si18 201 195
- Full close 195
- Full open 195
- H evg full open evl full close h evp full open evu full close evt full close evh full close 195
- High pressure liquid refrigerant high pressure high temp gas refrigerant low pressure low temp liquid or gas refrigerant 195
- Productive operation patterns on stopping the heating operation on starting the heating operation when the standby operation has not been completed yet before unit operation stop 195
- Securing the reliability oil dilution proof in particular of the compressor by the liquid return to accumulator when starting the heating operation the unit drains the refrigerant in the accumulator and stagnates the liquid refrigerant in the condenser and receiver after stopping the heating operation consequently fully open evp to evaporate the liquid refrigerant in the accumulator fully close each indoor unit motorized valves evu evt fully open evg to feed the liquid refrigerant in the receiver and then fully close evl 195
- Standby operation heating 195
- When conducting the equalizing control after completing the standby operation fully open each room motorized valves evu evt and evg evl and fully open evp only for the equalizing control 195
- Equalizing control heating 196
- Evl full close h evp full open full close 150 pls full open evg 100 pls evu full close evt full close evh full close 196
- Flow of refrigerant 183 196
- High pressure liquid refrigerant high pressure high temp gas refrigerant low pressure low temp liquid or gas refrigerant 196
- Productive operation patterns when the heating standby operation has been completed 196
- Si18 201 flow of refrigerant 196
- When conducting the equalizing control after completing the standby operation fully close each room motorized valves evu evt and evg evl and fully open evp only for the equalizing control 196
- Flow of refrigerant 197
- Flow of refrigerant si18 201 197
- H evg full close evl full close evp full open full close 150 pls full open h evu fixed opening 190pls h evt full close h evh fixed flow rate setting 197
- High pressure liquid refrigerant high pressure high temp gas refrigerant low pressure low temp liquid or gas refrigerant 197
- Oil return operation heating 197
- Productive operation patterns oil collecting operation in heating 197
- The oil collecting operation is conducted in the reverse cycle cooling cycle 197
- Defrost operation 198
- Flow of refrigerant 185 198
- H evp full open 150 pls full open h evg full close 70 pls full close evl full open full close h evu fixed opening 190 pls evt full close h evh fixed opening 100 pls 198
- High pressure liquid refrigerant high pressure high temp gas refrigerant low pressure low temp liquid or gas refrigerant 198
- Productive operation patterns in defrost operation 198
- Si18 201 flow of refrigerant 198
- The defrost operation of outdoor unit heat exchanger is conducted in the reverse cycle cooling cycle 198
- All room operation heating 199
- As the refrigerant circuit is in the status of no receiver provided the same control as the conventional multi type m 5 is conducted system control motorized valve evt evu each room distribution control motorized valve evu 199
- Conditions 1 unit is not in the capacity control the operating frequency does not droop to the minimum frequency by high pressure control system protection 2 all room units in operation 199
- Evg full close reverse target discharge pipe temperature control h evl target discharge pipe temperature control evp full close h evu heating sc control evh full close h evt target discharge pipe temperature control 199
- Flow of refrigerant 199
- Flow of refrigerant si18 201 199
- High pressure liquid refrigerant high pressure high temp gas refrigerant low pressure low temp liquid or gas refrigerant 199
- Productive operation patterns all room operation 199
- Conditions 1 not in the capacity control the operating frequency does not droop to the minimum frequency by high pressure control system protection 2 not in all room unit operation 3 all non operating room units motorized valve opening is not at minimum in case that the conditions 1 2 and 3 are met 200
- Evg full close reverse target discharge pipe temperature control h evl target discharge pipe temperature control with upper limit of opening evp full close evu target discharge pipe temperature control sc control h evt target discharge pipe temperature control evh full close 200
- Flow of refrigerant 187 200
- High pressure liquid refrigerant high pressure high temp gas refrigerant low pressure low temp liquid or gas refrigerant 200
- Multi room operation with non operating room unit heating 200
- Productive operation patterns multi room operation with non operating room unit 200
- Si18 201 flow of refrigerant 200
- The defrost operation of outdoor unit heat exchanger is conducted in the reverse cycle cooling cycle 200
- As the surplus refrigerant is treated with the receiver opening evg stagnates the refrigerant condensed through the auxiliary heat exchanger providing a motorized valve at the downstream side of the auxiliary heat exchanger clears the heat resistant temperature of the motorized valve the entire system control suction overheat is conducted by the adjustment of the surplus refrigerant amount in the receiver via evl bp motorized valve is exclusively used for the distribution control and evu for sc control system control motorized valve evl evt each room distribution control motorized valve evu 201
- Conditions 1 not in the capacity control the operating frequency does not droop to the minimum frequency by high pressure control system protection 2 in all room unit operation 3 all non operating room units motorized valve opening is minimum in case that the conditions 1 and 2 or 3 are met 201
- Flow of refrigerant 201
- Flow of refrigerant si18 201 201
- H evg reverse target discharge pipe temperature control h evl target discharge pipe temperature control evp full close evu sc control target discharge pipe temperature control h evt target discharge pipe temperature control min opening evh full close 201
- High pressure liquid refrigerant high pressure high temp gas refrigerant low pressure low temp liquid or gas refrigerant 201
- Multi room operation heating 201
- Productive operation patterns partial load operation 201
- Conditions 1 in capacity control capacity control range small when the operating frequency droops to the minimum frequency by the protective function of high pressure control system 202
- Flow of refrigerant 189 202
- H evg high pressure system control h evl target discharge pipe temperature control evp full close evu sc control target discharge pipe temperature control h evt target discharge pipe temperature control evh full close 202
- High pressure liquid refrigerant high pressure high temp gas refrigerant low pressure low temp liquid or gas refrigerant 202
- In case the peak cut control stays within the drooping zone even when the operating frequency becomes the lower limit frequency increasing the opening of evg motorized valve increases the condensing capacity of auxiliary heat exchanger and conducts evg control to stabilize the unit operation at the no change zone as the surplus refrigerant is treated with the receiver opening evl dwells the liquid refrigerant in the receiver with opened evg the entire system control suction overheat is conducted by the adjustment of the surplus refrigerant in the receiver via evl bp motorized valve is exclusively used for the distribution control evu and evt are operated by sc control system control motorized valve evl evt each room distribution control motorized valve evu 202
- Productive operation patterns heating 1 room operation with large indoor unit capacity 202
- Room operation indoor unit with large capacity heating 202
- Si18 201 flow of refrigerant 202
- Conditions 1 in capacity control capacity control range large when the operating frequency droops to the minimum frequency with high pressure control system protection function control 203
- Evg 0 150 pls evl target discharge pipe temperature control h evp high pressure system control evu sc control target discharge pipe temperature control evt target discharge pipe temperature control evh full close 203
- Flow of refrigerant 203
- Flow of refrigerant si18 201 203
- High pressure liquid refrigerant high pressure high temp gas refrigerant low pressure low temp liquid or gas refrigerant 203
- In case the peak cut control stays within the drooping zone even when the operating frequency becomes the lower limit frequency although evg motorized value is fully opened the peak cut control is still remaining in drooping zone conduct peak cut control by opening evp to obtain a stable unit operation in change zone with opened evg the entire system control suction overheat is conducted by the adjustment of the surplus refrigerant in the receiver via evl bp motorized valve is exclusively used for the distribution control evu and evt are operated by sc control system control motorized valve evl evt each room distribution control motorized valve evu 203
- Productive operation patterns heating 1 room operation 2 kw 1 room operation 203
- Room operation indoor unit with small capacity 2 kw heating 203
- Part 7 operations 204
- Arc423a3 arc423a2 for ftk25 35jvec ftx25 35jvec 205
- Ftk ftx25 35j 205
- Open the cover 205
- Operations 205
- Remote controller 205
- Remote controller si18 201 205
- Sensor 205
- Wireless remote controller 205
- Fvx25 35kz 206
- Ftxd25 35kz 207
- Ftk ftx50 60h 208
- Ftkd ftxd50 60 71j 209
- Flk flx50 60j 210
- On off 210
- Operations 197 210
- Si18 201 remote controller 210
- Arc423a13 arc423a14 for cdk25 35 50 60havec cdx25 35 50 60havec 211
- Cdk25 35 50 60ha cdx25 35 50 60j 211
- Operations 211
- Remote controller si18 201 211
- Arc423a9 arc423a10 for flk25 35 50 60hvec flx25 35 50 60hvec 212
- Flk flx25 35 50 60h 212
- Open the cover 212
- Operations 199 212
- Si18 201 remote controller 212
- Brc7c612wc 213
- Fhyc35 50 60 71k optional accessory 213
- Brc1b61 remote controller 215
- Brc1b62 remote controller 215
- Fdym60 03f standard accessory 215
- Fhyc35 50 60 71k optional accessory 215
- Wired remote controller 215
- Method of field set 12 218
- Operating test 06 218
- Part 8 operating test 218
- Part 8 part 8 part 8 part 8 operating test operating test operating test operating test 218
- Operating test 219
- Address select sw 220
- Digital service monitor 220
- Forced operation mode select sw 220
- Initialize sw 220
- Normal led 220
- Operating test 207 220
- Outdoor unit statu 220
- Pump down sw 220
- Service monitor rayout on pcb 220
- Si18 201 operating test 220
- Silent select sw 220
- Test operation sw 220
- Initialize setting 221
- Operating test 221
- Operating test si18 201 221
- Blinking 222
- Digital display 222
- Test operation switch 222
- Test operation switch sw7 222
- After pd_ blinks in the digital display the lp low pressure indicator activates 223
- Digital display 223
- Pump down operation switch 223
- Pump down operation switch sw4 223
- Be sure to enter the system unit installation position 224
- Indoor unit 224
- Record of the installation position 224
- System layout 224
- Field setting 225
- Method of field set 225
- Ceiling mounted built in type 226
- Ceiling mounted cassette type 226
- Indoor models 226
- Initial setting contents 226
- Note a heat pump type indoor unit is used for cooling only twin system in case of using ceiling mounted cassette and ceiling suspended types 226
- Note if optional accessories are mounted on the indoor unit the indoor unit setting may have to be changed refer to the instruction manual optional hand book for each optional accessory 226
- Operating test 213 226
- Procedure 1 when in the normal mode push the button for a minimum of four seconds and the field set mode is entered 2 select the desired mode no with the button 3 push the button and select the first code no 4 push the button and select the second code no 5 push the button and the present settings are set 6 push the button to return to the normal mode 226
- Setting contents 226
- Si18 201 method of field set 226
- Wireless remote controller 226
- Automatic restart after power outage 227
- Example to set the filter sign time to filter contamination heavy for all units in a group set mode no to 10 setting switch no to 0 and setting position no to 02 227
- Filter sign indication only for ceiling mounted duct type 227
- Local setting mode no 227
- Notes 1 setting is made in all units in a group to set for individual indoor units or to check the setting use the mode nos with 2 in upper digit in parentheses 2 the setting position no is set to 01 at the factory except for the following cases in which 02 is set 227
- Remote control thermostat 227
- Setting of air flow direction adjustment range 227
- Air flow direction setting 228
- Caution when auto restart after power outage reset is set be sure to turn off air conditioners then cut off the power supply before conducting maintenance inspection and other work if the power supply is cut off with the power switch left on air conditioners will automatically start operating when the power supply is turned on 228
- Ceiling type setting switch for air flow adjustment 228
- Detailed explanation of setting modes 228
- Do not set any items other than those listed in the above table 8 functions that indoor units are not equipped with will not be displayed 9 when returning to normal mode 88 may be displayed on the lcd section of the remote controller due to initialization operation 228
- Filter sign setting 228
- If switching the filter sign on time set as given in the table below set time 228
- In the case of fhyc 35 to 71 class 228
- Make the following setting according to the ceiling height the setting position no is set to 01 at the factory 228
- Set the air flow direction of indoor units as given in the table below set when optional air outlet blocking pad has been installed the second code no is factory set to 01 228
- Setting table 228
- When installing sky air simultaneous operation multi unit set to either twin or triple only when the factory setting is changed it is necessary to make a setting using a remote controller 4 for further details see the installation instruction 5 since drafts may result carefully select the installation location 6 when power returns units resume the settings made before the power outage 228
- After setting stick the unit no label at decoration panel air discharge outlet as well as on the back of the wireless remote controller 231
- Fan speed off when thermostat is off 231
- Precautions set the unit no of the receiver and the wireless remote controller to be equal if the setting differs the signal from the remote controller cannot be transmitted 1 do not use any settings not listed in the table 2 for group control with a wireless remote controller initial settings for all the indoor units of the group are equal for group control refer to the installation manual attached to the indoor unit for group control 231
- Setting table 231
- Ultra long life filter sign setting 231
- Used as a countermeasure against odor for barber shops and restaurants 231
- When a ultra long life filter is installed the filter sign timer setting must be changed 231
- When the cool heat thermostat is off you can stop the indoor unit fan by switching the setting to fan off 231
- Group number setting for central remote control 233
- Please refer to operating installations of each controllers 235
- 1 all indoor units 236
- 1 thermostat off after the room temperature reaches the set temperature indoor units enter the operation stand by state 236
- 2 floor ceiling suspended dual type units 236
- 3 skyair indoor units 236
- Applicable model series 236
- If you use the indoor unit listed below and have it connected to the multi type outdoor unit rmk140j rmx140j be sure to read this precautions use the furnished remote controller for the ceiling mounted cassette type the remote controller is an option choose one of the following remote controllers 1 wired type brc1b61 c 2 wireless type brc7c612w c h p brc7c613w c c o 236
- In heating operation fan operation cannot be performed if the fan operation is selected the remote controller will display it as a current mode however the fan operation will not be performed 236
- In heating operation no warm air may come out temporarily this is to protect the outdoor unit not a failure at this point defrost is displayed on the wired type remote controller 236
- In heating operation when all indoor units are stopped the outdoor unit stops its operation automatically after 5 minutes this is a part of preparation process for the next operation not a failure 236
- In simultaneous operation in two or more rooms when heating operation is performed in one room cooling operation cannot be performed in other rooms the mode in the room where operation began first is given priority 236
- Outside air temperature for operation 236
- Precautions for rmk140j rmx140j outdoor unit users 236
- These cases are not troubles 236
- With the thermostat off 1 the fan may start stop automatically this is not a failure 236
- With the thermostat off 1 the fan may start stop automatically this is not a failure at this point defrost is displayed on the wired type remote controller 236
- Bp unit trouble diagnosis 10 238
- Part 9 part 9 part 9 part 9 service diagnosis service diagnosis service diagnosis service diagnosis 238
- Part 9 service diagnosis 238
- Troubleshooting outdoor unit related 60 238
- Troubleshooting skyair indoor unit 46 238
- Troubleshooting split type indoor unit 26 238
- Troubleshooting split type indoor unit 239
- Troubleshooting with the operation lamp 239
- Arc423 series ftk x 25 35j series 241
- In the arc423a 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 241
- 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 241
- Press the timer cancel button repeatedly until a continuous beep is produced 241
- Service check function 241
- The code indication changes in the sequence shown below and notifies with along beep 241
- Arc417 series ftk x 50 60h series 242
- In the arc417a 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 242
- 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 242
- Press the timer cancel button repeatedly until a continuous beep is produced 242
- The code indication changes in the sequence shown below and notifies with a long beep 242
- Code indication on the remote controller 243
- Error codes and description of fault 243
- 5 5 5 a5 244
- 5 5 5 a6 244
- 5 5 5 c 244
- 5 5 5 c9 244
- Blinks 244
- Ftk x 25 35 j series not used for troubleshooting 244
- Ftk x 50 60h cdk x 25 60h series 244
- Green flashes when in normal condition red off in normal condition not used for troubleshooting 244
- Indoor units 244
- Troubleshooting 244
- Varies depending on the cases 244
- Faulty pcb 245
- Troubleshooting detail 245
- Operation halt due to the freeze protection function 246
- Caution be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred 247
- Check no refer to p 05 247
- Service diagnosis 247
- Troubleshooting 247
- Troubleshooting split type indoor unit si18 201 247
- Check no 5 refer to p 09 248
- Detection error due to faulty indoor unit pcb 1 248
- Detection error due to faulty indoor unit pcb 2 248
- Indoor unit led display a 248
- Malfunction decision conditions 248
- Method of malfunction detection 248
- Note no led display on ftk x 25 35j series 248
- Operation halt due to breaking of the fan motor lead wires 248
- Operation halt due to breaking of wire inside the fan motor 248
- Operation halt due to fan motor ac motor or related abnormality 248
- Operation halt due to faulty capacitor of the fan motor 248
- Operation halt due to short circuit inside the fan motor winding 248
- Remote controller display 248
- Supposed causes 248
- The rotation speed detected by the hall ic during fan motor operation is used to determine abnormal fan motor operation 248
- Troubleshooting 248
- When the detected rotation speed is less than 50 of the hh tap under maximum fan motor rotation demand 248
- C4 c5 c9 ca 249
- Operation halt due to detection of thermistor or related abnormality 249
- Faulty indoor unit pcb 250
- Faulty indoor unit pcb 251
- Faulty power supply or indoor unit pcb for ftk x 25 35j 252
- Faulty power supply or indoor unit pcb for ftk x 50 60h cdk x 25 60h 253
- Caution be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred 254
- Service diagnosis 241 254
- Si18 201 troubleshooting split type indoor unit 254
- Troubleshooting 254
- Caution be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred 255
- Check no 6 refer to p 09 255
- Service diagnosis 255
- Troubleshooting 255
- Troubleshooting split type indoor unit si18 201 255
- Check no 3 refer to p 08 256
- Faulty indoor unit pcb 256
- Faulty outdoor unit pcb 256
- Indoor unit led display a 256
- Indoor unit outdoor unit signal transmission error due to breaking of wire in the connection wires between the indoor and outdoor units wire no 2 256
- Indoor unit outdoor unit signal transmission error due to disturbed power supply waveform 256
- Indoor unit outdoor unit signal transmission error due to wiring error 256
- Malfunction decision conditions 256
- Method of malfunction detection 256
- Note no led display on ftk x 25 35j series 256
- Remote controller display 256
- Signal transmission error between indoor and outdoor units 256
- Supposed causes 256
- The data received from the outdoor unit in indoor unit outdoor unit signal transmission is checked whether it is normal 256
- Troubleshooting 256
- When the data sent from the outdoor unit cannot be received normally or when the content of the data is abnormal 256
- Signal transmission error between indoor unit and remote controller 257
- Caution be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred 258
- Service diagnosis 245 258
- Si18 201 troubleshooting split type indoor unit 258
- Troubleshooting 258
- The inspection test button 259
- Troubleshooting skyair indoor unit 259
- Self diagnosis by wired remote controller 260
- Fault diagnosis by wireless remote controller 261
- Troubleshooting by led on the indoor unit s 263
- Blinks 264
- Explanation for symbols 264
- High probability of malfunction 264
- Indicates variety of circumstances 2 no h2p for dedicated cooling only model 35 60 class 264
- Indoor unit 264
- Low probability of malfunction no possibility of malfunction do not replace 264
- Malfunction code and led display table 264
- Note 1 the asterisk 264
- Off no connection with troubleshooting 264
- Possibility of malfunction 264
- Troubleshooting by remote controller display led display 264
- Failure of indoor unit pc board 265
- Troubleshooting detail 265
- Malfunction of drain water level system float type 266
- Caution be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred 267
- Service diagnosis 267
- Troubleshooting 267
- Troubleshooting skyair indoor unit si18 201 267
- Indoor unit fan motor lock 268
- Swing flap motor malfunction lock 269
- Failure of capacity setting 270
- Applicable models all indoor unit models 271
- Broken or disconnected wire 271
- Failure of connector contact 271
- Failure of electronic circuitry indoor unit pc board 271
- Failure of the sensor itself 271
- Malfunction decision conditions 271
- Malfunction detection is carried out by temperature detected by heat exchanger sensor 271
- Malfunction of heat exchange temperature sensor system 271
- Method of malfunction detection 271
- Remote controller display 271
- Supposed causes 271
- Thermistor temperature and resistance conversion table 271
- Troubleshooting 271
- When the heat exchanger thermistor becomes disconnected or short circuited while the unit is running 271
- Applicable models aii indoor unit models 272
- Broken or disconnected wire 272
- Failure of connector contact 272
- Failure of indoor unit pc board 272
- Failure of the sensor itself 272
- Malfunction decision conditions 272
- Malfunction detection is carried out by temperature detected by suction air temperature sensor 272
- Malfunction of suction air temperature sensor system 272
- Method of malfunction detection 272
- Remote controller display 272
- Supposed causes 272
- Thermistor temperature and resistance conversion table 272
- Troubleshooting 272
- When the suction air temperature sensor s thermistor becomes disconnected or short circuited while the unit is running 272
- Check no refer to p 00 273
- Check no refer to p 06 273
- Clogged air filter 273
- Clogged refrigerant circuit etc 273
- Evh malfunction 273
- Evn malfunction 273
- Evp malfunction 273
- Excessively long refrigerant pipe 273
- Faulty installation of indoor unit outdoor unit 273
- Gas shortage 273
- Improper load for the capacity 273
- Incorrect temperature setting 273
- Stop valve closed 273
- Supposed causes 273
- The unit runs but doesn t cool heat the room 273
- Troubleshooting 273
- Troubleshooting outdoor unit related 273
- Unconnectable models 273
- Service diagnosis 261 274
- Si18 201 troubleshooting outdoor unit related 274
- Troubleshooting 274
- 7 seg display on the outdoor p c board 275
- Service diagnosis 275
- Trouble daignosis 275
- Troubleshooting outdoor unit related si18 201 275
- Check no refer to p 00 276
- Check no refer to p 01 276
- Continuity of the high pressure switch is detected by the safety device circuitry 276
- Dirty indoor unit heat exchanger 276
- Disconnection of high pressure switch s harness 276
- Faulty connectors connection of high pressure switch 276
- Faulty high pressure switch 276
- Faulty outdoor unit fan 276
- High pressure malfunction 276
- Malfunction decision conditions 276
- Method of malfunction detection 276
- Motorized valve clogged 276
- Outdoor unit indication 276
- Over charged with refrigerant 276
- Supposed causes 276
- The 4 time counter resets itself when no outdoor unit abnormality occurs within 60 minute cumulative time after the error generation 276
- Troubleshooting 276
- Troubleshooting detail 276
- When hps malfunction is generated 4 times the system shuts down 276
- Compressor lock 277
- Check no refer to p 01 278
- Fan lock is detected using the voltage signal given to the fan and number of turns of the fan motor 278
- Fan lock overcurrent 278
- Faulty fan motor 278
- Faulty fan pc board 278
- Interference by foreign matters with propeller 278
- Malfunction decision conditions 278
- Method of malfunction detection 278
- Outdoor unit indication 278
- Overcurrent is detected by the signal from driver 278
- Supposed causes 278
- Troubleshooting 278
- When a fan lock overcurrent is generated 4 times the system shuts down the 4 time counter resets itself when no outdoor unit abnormality occurs within 60 minute cumulative time after the error generation 278
- When the fan ran with 30rpm or less continuously for 6 seconds in the waveform output when ocp signal was sent from the fan driver 278
- Operation halt due to detection of inv input current error 279
- Detection by checking continuity and lack of connector 280
- Faulty electronic expansion valve 280
- Faulty harness of electronic expansion valve 280
- Incorrect connectors connection of electronic expansion valve 280
- Malfunction decision conditions 280
- Malfunction is determined by no common voltage applied when turning the power supply on 280
- Malfunction of electronic expansion valve 280
- Method of malfunction detection 280
- Note the applicable part of motorized valve is displayed via rotary switch 01 280
- Outdoor unit indication 280
- Outside cause noise etc 280
- Supposed causes 280
- Troubleshooting 280
- Operation halt due to discharge pipe temperature control 281
- Lp drop error 282
- Malfunction of high pressure switch system 283
- Check no refer to p 03 284
- Check no refer to p 04 284
- Faulty start of the compressor is detected by checking the turning information of the compressor via position detector of electrical parts 284
- Incorrect detection due to disconnected relay of compressor 284
- Incorrect detection due to faulty outdoor unit pc board 284
- Input voltage error 284
- Malfunction decision conditions 284
- Malfunction to start due to faulty compressor 284
- Malfunction to start due to faulty outdoor unit pc board 284
- Malfunction to start due to stop valve closed 284
- Method of malfunction detection 284
- Operation halt due to faulty position detection sensor 284
- Outdoor unit indication 284
- Supposed causes 284
- Troubleshooting 284
- When the compressor did not turn in approximately 15 seconds after starting operation frequency 4 times clear condition 60 minute continuous run normal 284
- Fan position detection error 285
- Operation halt due to detection of ct error 286
- Faulty connectors connection of outside air temperature sensor 287
- Faulty outside air temperature sensor 287
- Faulty outside air thermistor 287
- Malfunction decision conditions 287
- Method of malfunction detection 287
- Outdoor unit indication 287
- Supposed causes 287
- Troubleshooting 287
- When the outside air temperature sensor became short circuited or open 287
- Faulty connectors connection of discharge temperature sensor 288
- Faulty discharge temperature sensor 288
- Faulty discharge thermistor 288
- Malfunction decision conditions 288
- Method of malfunction detection 288
- Outdoor unit indication 288
- Supposed causes 288
- Troubleshooting 288
- When the discharge temperature sensor became short circuited or open 288
- Faulty connectors connection of suction temperature sensor 289
- Faulty of suction thermistor 289
- Faulty suction temperature sensor 289
- Malfunction decision conditions 289
- Method of malfunction detection 289
- Outdoor unit indication 289
- Supposed causes 289
- Troubleshooting 289
- When the suction temperature sensor became short circuited or open 289
- Faulty connectors connection of heat exchanger temperature sensor 290
- Faulty heat exchanger temperature sensor 290
- Faulty heat exchanger thermistor 290
- Malfunction decision conditions 290
- Method of malfunction detection 290
- Outdoor unit indication 290
- Supposed causes 290
- Troubleshooting 290
- When the heat exchanger temperature sensor became short circuited or open 290
- Faulty connectors connection of liquid pipe temperature sensor 291
- Faulty liquid pipe temperature sensor 291
- Faulty of liquid pipe thermistor 291
- Malfunction decision conditions 291
- Method of malfunction detection 291
- Outdoor unit indication 291
- Supposed causes 291
- Troubleshooting 291
- When the liquid pipe temperature sensor became short circuited or open 291
- Faulty bp liquid pipe temperature sensor 292
- Faulty bp liquid pipe thermistor 292
- Faulty connectors connection of bp liquid pipe temperature sensor 292
- Malfunction decision conditions 292
- Method of malfunction detection 292
- Outdoor unit indication 292
- Supposed causes 292
- Troubleshooting 292
- When the bp liquid pipe temperature sensor became short circuited or open 292
- Faulty bp gas pipe temperature sensor 293
- Faulty bp gas pipe thermistor 293
- Faulty connectors connection of bp gas pipe temperature sensor 293
- Malfunction decision conditions 293
- Method of malfunction detection 293
- Outdoor unit indication 293
- Supposed causes 293
- Troubleshooting 293
- When the bp gas pipe temperature sensor became short circuited or open 293
- Abnormal lp error 294
- Defective lp sensor 294
- Error is determined by the lp sensor value when the compressor is off 2 error is determined by the lp sensor value in normal operation when the compressor is on 3 error is determined by the lp sensor value when a certain time range passed after standby operation at time of starting 294
- Faulty connectors connection of lp sensor 294
- Malfunction decision conditions 294
- Method of malfunction detection 294
- Outdoor unit indication 294
- Possibility of gas shortage 294
- Supposed causes 294
- Troubleshooting 294
- When cooling refrigerant amount 0 20 294
- When either of 1 3 conditions mentioned above was satisfied 294
- When heating refrigerant amount 0 5 294
- Rise in box temperature 295
- Abnormal rise in fin temperature 296
- Operation halt due to detection of output overcurrent 297
- Caution be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred 298
- Check no refer to p 00 298
- Check no refer to p 03 298
- Check no refer to p 04 298
- Service diagnosis 285 298
- Si18 201 troubleshooting outdoor unit related 298
- Troubleshooting 298
- Integrated input current stop 299
- Electronic thermal 300
- Stall prevention 301
- Transmission error between microcomputers 302
- Check no 2 refer to p 07 303
- Check no 3 refer to p 08 303
- Check no refer to p 02 303
- Disconnection faulty connection of internal wiring 303
- Electrolytic capacitor malfunction 303
- Faulty pc board 303
- Faulty power transistor 303
- Faulty reactor 303
- Instantaneous power failure 303
- Malfunction decision conditions 303
- Method of malfunction detection 303
- Mismatching with power supply of feedback control system 303
- Outdoor unit indication 303
- Overvoltage low voltage 303
- Pam module malfunction 303
- Power supply system error is detected using the voltage of inverter dc unit 303
- Supposed causes 303
- Troubleshooting 303
- When a power supply system error is generated 4 times the system shuts down the 4 time counter resets itself when no outdoor unit abnormality occurs within 60 minute cumulative time after the error generation 303
- When after starting the compressor the voltage reached to below 210v over 450v before it exceeded 320v or to below 260v or over 450v after it exceeded 320v once 303
- Bp determined numbers are different from actual bp numbers 304
- Connection from side a of bp is not carried out 304
- Distortion of power supply wave 304
- Incorrect connection of transmission wire 304
- Malfunction decision conditions 304
- Method of malfunction detection 304
- Outdoor unit indication 304
- Supposed causes 304
- Transmission error between outdoor unit and bp unit 304
- Transmission error is detected when the data from bp unit could not be correctly received 304
- Troubleshooting 304
- When the data from bp unit could not be correctly received continuously for 15 seconds 304
- Check no 4 refer to p 08 305
- Service diagnosis 305
- Troubleshooting 305
- Troubleshooting outdoor unit related si18 201 305
- Check no 4 refer to p 08 306
- Distortion of power supply waveform 306
- Incorrect connection of transmission wire 306
- Malfunction decision conditions 306
- Method of malfunction detection 306
- Outdoor unit indication 306
- Supposed causes 306
- Transmission error between indoor unit and bp unit 306
- Transmission error is detected when bp unit could not correctly receive the data from bp unit to transmit the data incorrectly to outdoor unit 306
- Troubleshooting 306
- When bp unit could not correctly receive the data from indoor unit continuously for 15 seconds and transmitted the data incorrectly to outdoor unit 306
- Dc fan microcomputer malfunction 307
- Incorrect connectors connection 307
- Malfunction decision conditions 307
- Malfunction of control pc board receiving circuit 307
- Method of malfunction detection 307
- Outdoor unit indication 307
- Outside causes noise etc 307
- Supposed causes 307
- Transmission error of dc fan 307
- Troubleshooting 307
- When transmission error with dc fan microcomputer continued for 60 seconds 307
- Operation halt due to detection of gas shortage 308
- Caution be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred 309
- Check no refer to p 01 309
- Ct check refer to p 73 309
- Service diagnosis 309
- Troubleshooting 309
- Troubleshooting outdoor unit related si18 201 309
- System malfunction 310
- Faulty box thermistor malfunction 311
- Faulty fin thermistor 312
- Check no 313
- Discharge pressure check 313
- How to check 313
- Installation condition check 313
- Service diagnosis 313
- Troubleshooting outdoor unit related si18 201 313
- Electronic expansion valve check 314
- Fan motor position signal check 314
- Check no check the wiring at the sections marked by the boxes in the diagram check for breaking of wire and wiring errors in the case of rmx140jvmc 315
- Internal wiring check 1 315
- Service diagnosis 315
- Troubleshooting outdoor unit related si18 201 315
- Capacitor voltage check 316
- Check no power transistor check 316
- Do not touch the charging unit for 10 minutes after turning the breaker off 316
- Even when touching the charging unit after 10 minutes use a multiple meter to ensure that the power supply voltage of power transistor is 50v or less 316
- Follow the below figure to measure the capacitor voltage with breaker kept on while take enough care not to touch the charging unit 316
- If the resistance value is not normal replace the control pc board 316
- Measure of the power transistor on section of capacitor as shown in the figure below 316
- Measure u v w either on terminals of control pc board on the substrate side or on the compressor terminals 316
- Power transistor check capacitor voltage check 316
- Power transistor output check 317
- 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 318
- Thermistor resistance check 318
- And conduct forced cooling operation in the case of rmx140jvmc 319
- Check no 319
- Check no 0 mount a clamp meter to the red harness indicated by the arrow 319
- Inverter units input current measurement 319
- Inverter units refrigerant system check 319
- Service diagnosis 319
- Troubleshooting outdoor unit related si18 201 319
- Check no 1 320
- Check no 2 320
- Electrolytic capacitor capacity check 320
- Service diagnosis 307 320
- Si18 201 troubleshooting outdoor unit related 320
- Voltage check when starting the compressor 320
- Check no 3 measure the power supply waveform between pins 1 and 3 on the terminal board and check the waveform disturbance 321
- Check no 4 321
- Check to see if the power supply waveform is a sine wave fig 321
- Check to see if there is waveform disturbance near the zero cross sections circled in fig 321
- Fig fig 321
- Power supply waveforms check 321
- Service diagnosis 321
- Total operating current check 321
- Troubleshooting outdoor unit related si18 201 321
- Inverter units hall ic check 322
- Inverter units indoor unit pcb 2 output voltage check 322
- Bp unit trouble diagnosis 323
- Led on branch provider unit diagnosis leds 323
- Pcb parts layout 323
- For bpmk928b42 43 12 324
- Indoor unit 42 324
- Outdoor unit 20 324
- Part 10 part 10 part 10 part 10 removal procedure removal procedure removal procedure removal procedure 324
- Part 10 removal procedure 324
- For bpmk928b42 43 325
- Installation of indoor unit 325
- Opening of electrical box cover and removal of pcb mount 326
- Removal of motorized valve 328
- Removal of thermistor 331
- Outdoor unit 333
- Removal of outer panels 333
- Removal of pcb and electrical box 334
- Disconnect the two relay connectors on the side 337
- Remove the two lock screws from the front section 337
- Slide the front section to the right and release it off the two hooks at the back 337
- Detaching the fan control pcb 341
- The fan control pcb is located as shown at right remove the four locking card spacers and detach the pcb 341
- Removal of propeller fans and fan motors 342
- Removal of thermistor 344
- Removal of motorized valve 345
- Removal of sound insulation 347
- Draw out the sound insulation cover from the bottom of the compressor 348
- Open the sound insulation and draw it out 348
- Undo the two points of the sound insulation fixture string 348
- Removal of compressor 349
- Removal of 4 way valve 351
- Indoor unit 355
- Refer following table for indoor unit removal procedure 355
- Installation 44 356
- Others 54 356
- Part 11 cautions before operation 356
- Part 11 part 11 part 11 part 11 cautions before operation cautions before operation cautions before operation cautions before operation 356
- Wiring 48 356
- Carrying in 357
- Installation 357
- Installation procedure 357
- Installation service space the horizontal coupling and stacking are not allowed 357
- Outdoor unit 357
- Caution before operation 345 358
- Si18 201 installation 358
- Be sure to leave a 600mm square opening for service and maintenance 359
- Bp unit 359
- Installation 359
- Precaution cut the piping on the standard accessories to match the indoor unit s piping diameter 359
- Wall mounted 359
- Caution before operation 347 360
- Cautions 360
- Installation of the main unit 360
- Si18 201 installation 360
- Connection electric wire treatment caution 361
- Electric wiring connection 361
- Outdoor unit 361
- Wiring 361
- Be sure to attach this 362
- Bp unit connection priority 362
- Caution before operation 349 362
- Make sure numbers 1 2 and 3 all match 362
- Si18 201 wiring 362
- Bp unit 363
- Caution before operation 363
- Connecting the wiring 363
- Room a 363
- Room b 363
- Room c 363
- Warning 363
- Wiring si18 201 363
- Caution before operation 351 364
- Cautions 364
- Operating test 364
- Room a 364
- Room b 364
- Room c 364
- Si18 201 wiring 364
- Warning 364
- Caution before operation 365
- Outdoor unit rotary switch setting 365
- Wiring si18 201 365
- Caution before operation 353 366
- Si18 201 wiring 366
- Explanation for ftk x 25 35j series 367
- Others 367
- Test run from the remote controller for heat pump model only 367
- Centralized control for krc72 krp413a1s 368
- Cut the jumper j4 368
- Cut the jumper ja on pcb 368
- Dry keep change over switch all indoor models for cooling only and heat pump model 368
- For an explanation on usage see the option handbook however do the following when using the krp413a1s contact connection centralized control pc board 368
- How to set the different addresses 368
- If the unit was running when a power failure occurred it may not resume operation after recovering from a power failure 368
- Method of operating air conditioners individually when two units are installed in one room for cooling only and heat pump model 368
- Note the power failure recovery function is controlled by the on signal from the centralized control pc board the following may occur if the unit is used without cutting jumper jc 368
- Pcb in the indoor unit 368
- Remove the front panel 368
- Remove the sensor parts cover 2 screws then remove the electric parts box 1 screw 368
- Slide the metallic cover to remove it 4 claws on the electric parts box 368
- When two indoor units are installed in one room the two wireless remote controllers can be set for different addresses 368
- Wireless remote controller 368
- Adjusting the angle of the intelligent eye sensor 369
- Explanation for ftk x 50 60h and cdk x 25 60h series 370
- Method of operating air conditioners individually when two units are installed in one room for cooling only and heat pump model 370
- Test run from the remote controller for heat pump model only 370
- Centralized control for krc72 krp411a1s and krp410a11s 371
- Dry keep change over switch all indoor models for cooling only and heat pump model 371
- For an explanation on usage see the option handbook however do the following when using the krp410a11s contact connection centralized control pc board 371
- If the unit was running when a power failure occurred it may not resume operation after recovering from a power failure 371
- Note the power failure recovery function is controlled by the on signal from the centralized control pc board the following may occur if the unit is used without cutting jumper jc 371
- Part 12 appendix 372
- Part 12 part 12 part 12 part 12 appendix appendix appendix appendix 372
- Piping diagrams 60 372
- Wiring diagrams 70 372
- Appendix 373
- Outdoor units 373
- Piping diagrams 373
- Piping diagrams si18 201 373
- Rmk140javm 373
- Rmk140jvmc9 8 rmk140jvmt9 rmk140jzvma 373
- Appendix 361 374
- Rmx140jvmc9 8 rmx140jvmt9 rmx140jvmb rmx140jzvmb 374
- Si18 201 piping diagrams 374
- Appendix 375
- Bp units 375
- Bpmk928b42 375
- Bpmk928b43 375
- Note 1 brazing for the field piping connection 2 use the pipe attached if the pipe size is not matched when connecting indoor unit adjustable for the connecting direction 375
- Piping diagrams si18 201 375
- Appendix 363 376
- Ftk25 35jve a 9 ftx25 35jvea9 ftk25 35jvec ftx25 35jvec ftk25 35javet ftx25 35javet ftx25 35jav1nb 376
- Ftkd50 60 71jve a 9 ftkd50 60 71jvet 376
- Indoor units 376
- Si18 201 piping diagrams 376
- Appendix 377
- Cdk25 35 50 60have a cdk25 35 50 60havec cdk25 35 50 60havet 377
- Ftxd50 60 71jvea 9 ftxd50 60 71jvet ftxd50 60 71jv1b 377
- Indoor unit 377
- Piping diagrams si18 201 377
- Appendix 365 378
- Cdx25 35 50 60havea cdx25 35 50 60havec cdx25 35 50 60hav1nb cdx25 35 50 60jv1nb cdx 25 35jvec 378
- Flk25 35 50 60hve a flk25 35 50 60hvec flk25 35 50 60hvet 378
- Si18 201 piping diagrams 378
- Appendix 379
- Flk50 60jvea 9 379
- Flx25 35hvea flx25 35 50 60hvec flx25 35 50 60hvet flx25 35hv1nb 379
- Indoor unit 379
- Piping diagrams si18 201 379
- A 6 6 9 15 15 380
- Appendix 367 380
- B 12 15 15 6 9 380
- Fhyc35 50 60 71kve9 fhyc35 50 60 71kv1c9 fdym60 03fav1 c fdym60 03faval 380
- Fhyc35 fhyc50 60 fhyc71 fdym60 fdym03 380
- Field piping φ a cut 380
- Field piping φ b cut 380
- Flx50 60jvea 9 flx50 60jv1b 380
- Si18 201 piping diagrams 380
- Appendix 381
- Ftk50 60hvec ftx50 60hvec 381
- Ftxd25 35kzv1b 381
- Indoor unit 381
- Piping diagrams si18 201 381
- Appendix 369 382
- Fvx25 35kzv1b 382
- Indoor unit 382
- Si18 201 piping diagrams 382
- Appendix 383
- Outdoor units 383
- Rmk140jvmc9 8 383
- Rmx140jvmc9 8 383
- Wiring diagrams 383
- Wiring diagrams si18 201 383
- Appendix 371 384
- Power supply 384
- Rmk140jvmt9 384
- Rmx140jvmt9 384
- Si18 201 wiring diagrams 384
- Acn connector 385
- Acp connector 385
- Active module 385
- Appendix 385
- Blk blk 385
- C900 c927 capacitor c1r capacitor 385
- Condenser 385
- Ct900 ct902 385
- Current transformer 385
- Discharge 385
- Electronic expansion valve 385
- F1u 3 5a 385
- Fg1 fg3 protective earth f1u fuse 385
- Field wiring 385
- Grn grn grn grn ylw ylw ylw ylw grn 385
- H102 h105 385
- H102 h105 wire harness 385
- H1p h4p pilot lamp 385
- Hps high pressure sw pm power module 385
- L live 385
- L1r l2r reactor 385
- L900 l904 coil 385
- Led2 led4 7 segment 385
- Liquid 385
- Lower side 385
- M1c compressor motor 385
- M1f m2f fan motor 385
- Magnetic 385
- Module active 385
- N neutral 385
- Ois15 solid state relay 385
- Operation mode sellect sw 385
- Outdoor 385
- Pcb1 pcb4 385
- Power supply 385
- Power supply 50hz 230v 385
- Printed circuit board 385
- R1t r5t thermistor 385
- R250 r251 resistor 385
- Red blk blk 385
- Rmk140javm 385
- Rmx140jvmb rmx140jzvmb 385
- Ry3x ry84 385
- Ry3x ry84 magnetic relay 385
- S101 s952 connector 385
- Sa900 surge absorber 385
- Sp low pressure sensor 385
- Suction 385
- Sw1 sw2 address sellect sw 385
- Sw4 pump down sw down 385
- Sw5 up sw6 set sw sw7 test operation sw 385
- Ta5 ta6 connector 385
- Tb2 tb8 connector 385
- Terminals of the comp assignments of 385
- To bp unit 385
- Uper side 385
- V900 v901 varistor 385
- Wiring 385
- Wiring diagrams si18 201 385
- X1m x4m terminal strip 385
- Ylw blk 385
- Ylw wht 385
- Z1c z6c ferrite core 385
- Appendix 373 386
- D031259 386
- Magnetic 386
- Rmk140jzvma 386
- Ry3x ry84 386
- Si18 201 wiring diagrams 386
- Appendix 387
- Bp units 387
- Bpmk928b42 387
- Bpmk928b43 387
- Wiring diagrams si18 201 387
- Cooling only 388
- Ftk25 35jve a 9 ftk25 35javet 388
- Ftk25 35jvec 388
- Indoor units 388
- Appendix 389
- Ftk50 60hvec 389
- Ftkd50 60 71jve a 9 ftkd50 60 71jvet 389
- Wiring diagrams si18 201 389
- Appendix 377 390
- Cdk25 35 50 60have a cdk25 35 50 60havet 390
- Cdk25 35 50 60havec 390
- Si18 201 wiring diagrams 390
- Appendix 391
- Flk25 35 50 60hve a flk25 35 50 60hvet 391
- Flk25 35 50 60hvec 391
- Wiring diagrams si18 201 391
- Appendix 379 392
- Caution 392
- Flk50 60jvea 9 392
- Si18 201 wiring diagrams 392
- Fhyc35 50 60 71kve9 393
- Fhyc35 50 60 71kv1c9 394
- Fdym60 03fav1 fdym60 03faval 395
- Fdym60 03fav1c 396
- Appendix 397
- Ftx25 35jvea9 ftx25 35javet ftx25 35jav1nb ftxd25 35kzv1b 397
- Ftxd50 60 71jvea 9 ftxd50 60 71jvet ftxd50 60 71jv1b 397
- Heat pump 397
- Wiring diagrams si18 201 397
- Appendix 385 398
- Cdx25 35 50 60havea cdx25 35 50 60hav1nb cdx25 35 50 60jv1nb 398
- Flx25 35hvea flx25 35 50 60hvet flx25 35hv1nb 398
- Si18 201 wiring diagrams 398
- Flx50 60jvea 9 flx50 60jv1b 399
- Ftx25 35jvec 399
- Appendix 387 400
- Caution 400
- Cdx25 35 50 60havec cdx25 35jvec 400
- Ftx50 60hvec 400
- Si18 201 wiring diagrams 400
- Appendix 401
- Caution 401
- Flx25 35 50 60hvec 401
- Fvx25 35kzv1b 401
- Wiring diagrams si18 201 401
- Index index index index 402
- Numerics 402
- Symbols 402
- Drawings flow charts 406
- Drawings flow charts drawings flow charts drawings flow charts drawings flow charts 406
- Numerics 406
- For further improvement specifications or designs are subject to change without prior notice 410
- Printed in japan 10 2002 ak 410
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