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Remote Controller

SiMT041509E

Remote Controller

1. Remote Controller

Reference

Refer to the following pages for detail.

Note:

Refer to the operation manual of applicable model for detail. You can download operation
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Powerful

button

• Starts POWERFUL operation.

Display (LCD)

• Changes the temperature setting.

On/Off button

Auto

Indoor unit quiet

Low

Middle low

Middle

Middle high

High

• Press this button once to start

operation.
Press once again to stop it.

Temperature adjustment
buttons

: AUTO

: DRY

: COOL

: HEAT

: FAN

18 ~ 30

Not available

18 ~ 32

10 ~ 30

Not available

• Displays the current settings.

(In this illustration, each section is
shown with all its displays on for the
purpose of explanation.)

Fan setting button

• In indoor unit quiet operation,

operation sound becomes weak.
(The airflow rate also decreases.)

• In DRY operation, the airflow rate

setting is not available.

• Selects the airflow rate setting.

(R22030)

Signal transmitter

•

To use the remote controller, aim
the transmitter at the indoor unit. If
there is anything blocking the
signals between the unit and the
remote controller, such as a curtain,
the unit may not operate.
The maximum transmission distance
is about 7 m.

Receiver

HEAT PUMP model

ARC466A24

COOLING ONLY model

ARC466A25

1 Inverter POWERFUL operation

P.22

Содержание FTKM18PVMK

Страница 1: ...Service Manual Inverter Pair Wall Mounted Type FTK X M P Series SiMT041509E Applied Models z Inverter Pair Heat Pump ...

Страница 2: ... Pair Wall Mounted Type FTK X M P Series zCooling Only Indoor Unit FTKM18PVMK FTKM24PVMK FTKM28PVMK Outdoor Unit RKM18PVMK RKM24PVMK RKM28PVMK zHeat Pump Indoor Unit FTXM18PVMK FTXM24PVMK FTXM28PVMK Outdoor Unit RXM18PVMK RXM24PVMK RXM28PVMK ...

Страница 3: ...ration 17 1 6 Automatic Operation 18 1 7 Thermostat Control 19 1 8 NIGHT SET Mode 20 1 9 ECONO Operation 20 1 10 INTELLIGENT EYE Operation 21 1 11 Inverter POWERFUL Operation 22 1 12 Clock Setting 23 1 13 WEEKLY TIMER Operation 24 1 14 Other Functions 30 2 Function of Thermistor 31 3 Control Specification 32 3 1 Mode Hierarchy 32 3 2 Frequency Control 33 3 3 Controls at Mode Changing Start up 35 3...

Страница 4: ...d 66 4 12 Compressor Lock 68 4 13 DC Fan Lock 69 4 14 Input Overcurrent Detection 70 4 15 Four Way Valve Abnormality 71 4 16 Discharge Pipe Temperature Control 73 4 17 Compressor System Sensor Abnormality 74 4 18 Position Sensor Abnormality 75 4 19 Thermistor or Related Abnormality Outdoor Unit 77 4 20 Electrical Box Temperature Rise 79 4 21 Radiation Fin Temperature Rise 80 4 22 Output Overcurren...

Страница 5: ...93 3 Field Settings 94 3 1 When 2 Units are Installed in 1 Room 94 3 2 Jumper Settings 94 4 Silicon Grease on Power Transistor Diode Bridge 95 Part 8 Appendix 96 1 Piping Diagrams 97 1 1 Indoor Unit 97 1 2 Outdoor Unit 98 2 Wiring Diagrams 101 2 1 Indoor Unit 101 2 2 Outdoor Unit 102 ...

Страница 6: ... Warning Do not store the equipment in a room with successive fire sources e g naked flame gas appliance electric heater Be sure to disconnect the power cable plug from the plug socket before disassembling the equipment for repair Working on the equipment that is connected to the power supply may cause an electrical shock If it is necessary to supply power to the equipment to conduct the repair or...

Страница 7: ...2 in the refrigerant system If air enters the refrigerating system an excessively high pressure results causing equipment damage and injury Warning Caution Do not repair the electrical components with wet hands Working on the equipment with wet hands may cause an electrical shock Do not clean the air conditioner by splashing water Washing the unit with water may cause an electrical shock Be sure t...

Страница 8: ... Fire extinguishing equipment If any hot work is to be conducted on the refrigeration equipment or any associated parts appropriate fire extinguishing equipment shall be made available at hand Prepare a dry powder or CO2 fire extinguisher adjacent to the working area No ignition sources During work on a refrigeration system which involves exposing any piping work that contains or has contained R 3...

Страница 9: ...mes Repairs to sealed components During repairs to sealed components all electrical supplies shall be disconnected from the equipment being worked upon before the removal of any sealed covers etc If it is absolutely necessary to have power supplied to equipment during servicing continuously operating leak detection shall be installed at the most dangerous point of the system in order to warn of a ...

Страница 10: ...ken into consideration The following procedure shall be adhered to Remove refrigerant Purge the circuit with inert gas Evacuate the inert gas Purge again with inert gas Carry out cutting or brazing of the circuit The refrigerant shall be recovered into the correct recovery cylinders The system shall be cleaned with OFN to render the unit safe Flushing This process may need to be repeated several t...

Страница 11: ...els on the equipment stating the equipment contains R 32 Refrigerant recovery When removing refrigerant from a system either for servicing or decommissioning it is recommended to conduct training so that all refrigerants can be removed safely When transferring refrigerant into cylinders ensure that only appropriate refrigerant recovery cylinders are used Ensure that the correct number of cylinders...

Страница 12: ...een the indoor and outdoor units Make the connections securely and route the cable properly so that there is no force pulling the cable at the connection terminals Improper connections may cause excessive heat generation or fire When wiring between the indoor and outdoor units make sure that the terminal cover does not lift off or dismount because of the cable If the cover is not mounted properly ...

Страница 13: ... on the window frame If the unit is not securely mounted it may fall and cause injury For unitary type only When replacing the coin battery in the remote controller be sure to dispose of the old battery to prevent children from swallowing it If a child swallows the coin battery see a doctor immediately Warning Caution Installation of a leakage breaker is necessary in some cases depending on the co...

Страница 14: ...ation may cause an electrical shock Be sure to check the drainage of the indoor unit after the repair Faulty drainage may cause the water to enter the room and wet the furniture and floor Do not tilt the unit when removing it The water inside the unit may spill and wet the furniture and floor Be sure to install the packing and seal on the installation frame properly If the packing and seal are not...

Страница 15: ...ution is used when there is danger that the reader through incorrect manipulation may damage equipment lose data get an unexpected result or has to restart part of a procedure Note Note A Note provides information that is not indispensable but may nevertheless be valuable to the reader such as tips and tricks Reference A Reference guides the reader to other places in this binder or in this manual ...

Страница 16: ...SiMT041509E 1 List of Functions Part 1 List of Functions 1 Functions 2 ...

Страница 17: ...z Worry Free Reliability Durability Auto restart after power failure z z 3 D airflow z z Self diagnosis R C LED z z COMFORT AIRFLOW operation z z Wiring error check function Comfort Control Auto fan speed z z Anti corrosion treatment of outdoor heat exchanger z z Indoor unit quiet operation z z NIGHT QUIET mode automatic Flexibility Multi split split type compatible indoor unit OUTDOOR UNIT QUIET ...

Страница 18: ...SiMT041509E 3 Specifications Part 2 Specifications 1 Specifications 4 ...

Страница 19: ... Downward Air Filter Removable Washable Mildew Proof Removable Washable Mildew Proof Running Current Rated A 0 45 0 43 0 41 0 45 0 43 0 70 0 67 0 64 0 70 0 67 Power Consumption Rated W 59 85 Power Factor Rated 59 6 59 7 60 0 59 6 59 7 55 2 55 2 55 3 55 2 55 2 Temperature Control Microcomputer Control Microcomputer Control Dimensions H W D mm 340 1 050 259 340 1 050 259 Packaged Dimensions H W D mm...

Страница 20: ...t Left Horizontal Downward Air Filter Removable Washable Mildew Proof Running Current Rated A 0 74 0 71 0 68 0 74 0 71 Power Consumption Rated W 91 Power Factor Rated 55 9 55 7 55 8 55 9 55 7 Temperature Control Microcomputer Control Dimensions H W D mm 340 1 200 259 Packaged Dimensions H W D mm 342 1 310 429 Weight Mass kg 18 Gross Weight Gross Mass kg 25 Sound Pressure Level H M L SL dB A 54 49 ...

Страница 21: ...ft Horizontal Downward Air Filter Removable Washable Mildew Proof Removable Washable Mildew Proof Running Current Rated A 0 45 0 43 0 41 0 45 0 43 0 49 0 47 0 45 0 49 0 47 0 70 0 67 0 64 0 70 0 67 0 70 0 67 0 64 0 70 0 67 Power Consumption Rated W 59 65 85 85 Power Factor Rated 59 6 59 7 60 0 59 6 59 7 60 3 60 1 60 2 60 3 60 1 55 2 55 2 55 3 55 2 55 2 55 2 55 2 55 3 55 2 55 2 Temperature Control M...

Страница 22: ...ht Left Horizontal Downward Air Filter Removable Washable Mildew Proof Running Current Rated A 0 74 0 71 0 68 0 74 0 71 0 69 0 66 0 63 0 69 0 66 Power Consumption Rated W 91 84 Power Factor Rated 55 9 55 7 55 8 55 9 55 7 55 3 55 3 55 6 55 3 55 3 Temperature Control Microcomputer Control Dimensions H W D mm 340 1 200 259 Packaged Dimensions H W D mm 342 1 310 429 Weight Mass kg 18 Gross Weight Gros...

Страница 23: ...SiMT041509E Printed Circuit Board Connector Wiring Diagram 8 Part 3 Printed Circuit Board Connector Wiring Diagram 1 Indoor Unit 9 2 Outdoor Unit 11 ...

Страница 24: ...nnector for INTELLIGENT EYE sensor PCB 4 S32 Indoor heat exchanger thermistor 5 S41 Connector for swing motors 6 S46 Connector for display PCB 7 S47 Connector for signal receiver PCB 8 H1 H2 H3 FG Connector for terminal board 9 JA Address setting jumper Refer to page 94 for detail 10 JB Fan speed setting when compressor stops for thermostat OFF Refer to page 94 for detail 11 JC Power failure recov...

Страница 25: ...propriate wiring diagram 1 S48 Connector for control PCB 3P224121 1 S48 1 S49 Connector for control PCB 2 SW1 Forced cooling operation ON OFF button Refer to page 92 for detail 3 LED1 H1P LED for operation green 4 LED2 H2P LED for timer yellow 5 LED3 H3P LED for INTELLIGENT EYE green 6 RTH1 R1T Room temperature thermistor 3P224121 1 RTH1 SW1 LED3 LED2 LED1 S49 1 S36 Connector for control PCB S36 3...

Страница 26: ...an motor 4 S80 Connector for four way valve coil 5 S90 Connector for thermistors outdoor temperature outdoor heat exchanger discharge pipe 6 S92 Jumpers for local setting Neither disconnect the connector nor cut any of the jumpers 7 S100 Connector for fan motor for cooling electrical box 8 HL1 HN1 S Connector for terminal board 9 E1 E2 Terminal for earth wire 10 U V W Connector for compressor 11 F...

Страница 27: ...FUL Operation 22 1 12 Clock Setting 23 1 13 WEEKLY TIMER Operation 24 1 14 Other Functions 30 2 Function of Thermistor 31 3 Control Specification 32 3 1 Mode Hierarchy 32 3 2 Frequency Control 33 3 3 Controls at Mode Changing Start up 35 3 4 Discharge Pipe Temperature Control 36 3 5 Input Current Control 37 3 6 Freeze up Protection Control 38 3 7 Heating Peak cut Control 38 3 8 Outdoor Fan Control...

Страница 28: ...is controlled by the following 2 parameters The load condition of the operating indoor unit The difference between the room thermistor temperature and the target temperature The target frequency is adapted by additional parameters in the following cases Frequency restrictions Initial settings Forced cooling operation Inverter Principle To regulate the capacity a frequency control is needed The inv...

Страница 29: ...Once the set temperature is reached the energy saving operation enables to maintain the room temperature at low power Frequency Limits The following functions regulate the minimum and maximum frequency Forced Cooling Operation Refer to page 92 for detail Refrigerant circulation rate high high f low f freq variable Refrigerant circulation rate low high speed low speed R2812 Amount of heat exchanged...

Страница 30: ...e explains the auto swing process for cooling dry heating and fan 3 D Airflow Alternative repetition of vertical and horizontal swing motions enables uniform air conditioning of the entire room When the horizontal swing and vertical swing are both set to automatic operation the airflow becomes 3 D airflow The horizontal and vertical swing motions are alternated and the airflow direction changes in...

Страница 31: ...ing explains the principle of fan speed control for cooling The upper limit is M tap for 30 minutes from the operation start Heating In heating operation the fan speed is regulated according to the indoor heat exchanger temperature and the difference between the room thermistor temperature and the target temperature Note The fan stops during defrost control COMFORT AIRFLOW Operation The fan speed ...

Страница 32: ...om thermistor temperature at start up and the target temperature is divided into two zones Then the unit operates in an appropriate capacity for each zone to maintain the temperature and humidity at a comfortable level Thermostat turns on also when the room temperature is in the zone B for 10 minutes Room thermistor temperature at start up Target temperature X Thermostat OFF point Y Thermostat ON ...

Страница 33: ...set temperature Ts determines the target temperature Tt Ts 18 30 C 2 The target temperature Tt is calculated as Tt Ts C where C is the correction value C 0 C 3 Thermostat ON OFF point and operation mode switching point are as follows Tr means the room thermistor temperature 1 Heating Cooling switching point Tr Tt 3 0 C 2 Cooling Heating switching point Tr Tt 3 0 C 3 Thermostat ON OFF point is the ...

Страница 34: ...one A The system resumes from defrost control in any zones except A The operation turns on in any zones except A The monitoring time has passed while the temperature difference is in the zone B Cooling Dry 10 minutes Heating 10 seconds Cooling Dry Heating Refer to Temperature Control on page 13 for detail Zone B Zone A OFF ON Zone C Room thermistor temperature target temperature 1 5 C R22110 Cooli...

Страница 35: ...reaker capacity does not allow the use of multiple electrical devices and air conditioners It can be easily activated by pushing the ECONO button on the wireless remote controller Detail When this function is activated the maximum capacity also decreases The remote controller can send the ECONO command when the unit is in cooling heating dry or automatic operation This function can only be set whe...

Страница 36: ...ns in cooling In FAN operation the fan speed is reduced by 60 rpm When the microcomputer does not have a signal from the sensor in 20 minutes it judges that nobody is in the room and operates the unit at a temperature shifted from the target temperature Cooling Dry 1 2 C higher Heating 2 C lower Auto according to the operation mode at that time Note For dry operation the temperature cannot be set ...

Страница 37: ...POWERFUL operation in cooling Note POWERFUL operation cannot be used together with ECONO or COMFORT AIRFLOW operation Operation mode Fan speed Target temperature COOL H tap A rpm 18 C DRY Dry rotating speed A rpm Lowered by 2 5 C HEAT H tap A rpm 31 5 C FAN H tap A rpm AUTO Same as cooling heating in POWERFUL operation The target temperature is kept unchanged R19177 Target temp Fan A rpm 18 C H ta...

Страница 38: ...set the clock to the current day of the week 3 Press the Clock button blinks 4 Press the Select or Select button to adjust the clock to the present time Holding down the Select or Select button increases or decreases the time display rapidly 5 Press the Clock button to set the clock Point the remote controller at the indoor unit when pressing the button blinks and clock setting is completed R19926...

Страница 39: ...ogrammes Tuesday to Friday Saturday Sunday Programme 1 Programme 2 Programme 3 Programme 4 Use the copy mode to make settings for Tuesday to Friday because these settings are the same as those for Monday Programme 1 Programme 2 Programme 3 Programme 4 No timer settings Make timer settings for programmes Programme 1 Programme 2 Programme 3 Programme 4 Up to 4 reservations per day and 28 reservation...

Страница 40: ... desired day of the week and reservation number The day of the week and the reservation number of the current day will be displayed 1 to 4 settings can be made per day Pressing changes the reservation number and the day of the week The day of the week and reservation number will be set and blink 4 Press to select the desired mode Pressing changes the or setting in sequence In case the reservation ...

Страница 41: ...eiving tone and blinking of the OPERATION lamp is displayed on the LCD and WEEKLY TIMER operation is activated The TIMER lamp lights orange A reservation made once can be easily copied and the same settings used for another day of the week Refer to Do not forget to set the clock on the remote controller first The day of the week ON OFF TIMER mode time and set temperature only for ON TIMER mode can...

Страница 42: ...to another day of the week The whole reservation of the selected day of the week will be copied Tuesday to Friday The whole reservation of the selected day of the week will be copied The reservation will be copied to the selected day of the week The whole reservation of the selected day of the week will be copied To continue copying the settings to other days of the week repeat STEP 4 and STEP 5 i...

Страница 43: ... confirmed reserved settings select the reservation number and press The mode is switched to setting mode Proceed to STEP4 3 Press to exit the confirmation mode is displayed on the LCD and WEEKLY TIMER operation is activated The TIMER lamp lights orange Press while is displayed on the LCD disappears from the LCD The TIMER lamp goes off To reactivate the WEEKLY TIMER operation press again If a rese...

Страница 44: ...ber will be displayed 2 Press to select the day of the week and the reservation number to be deleted and or blink Selecting blank will cancel any reservation you may have The selected reservation will be deleted If there are still other reservations WEEKLY TIMER operation will be activated This function can be used for deleting reservations for each day of the week It can be used while confirming ...

Страница 45: ...s the ON OFF button once to start operation Press once again to stop it The ON OFF button is useful when the remote controller is missing or the battery has run out Forced cooling operation Forced cooling operation can be started by pressing the ON OFF button for 5 9 seconds while the unit is not operating Refer to page 92 for detail Note When the ON OFF button is pressed for 10 seconds or more th...

Страница 46: ...ature used in place of the inner temperature of the compressor rises abnormally the operating frequency becomes lower or the operation halts 2 The discharge pipe thermistor is used for detecting disconnection of the discharge pipe thermistor 3 Indoor Heat Exchanger Thermistor 1 The indoor heat exchanger thermistor is used for controlling the target discharge pipe temperature The system sets the ta...

Страница 47: ...as cooling operation R22042 Air conditioner control mode Forced operation mode Forced cooling operation for pump down operation Power transistor test mode Normal operation mode Fan Cooling includes drying Stop indoor unit OFF Preheating control Discharging from capacitor Stop Air conditioner control mode Forced operation mode Forced cooling operation for pump down operation Power transistor test m...

Страница 48: ...ne command frequency Command frequency is determined in the following order of priority 1 Limiting defrost control time 2 Forced cooling 3 Indoor frequency command 2 Determine upper limit frequency The minimum value is set as an upper limit frequency among the frequency upper limits of the following functions Compressor protection input current discharge pipe temperature heating peak cut freeze up...

Страница 49: ...more than a certain fixed time the frequency is adjusted according to the D value When the D value is low the frequency is lowered When the D value is high the frequency is increased 3 Frequency control when other controls are functioning When frequency is dropping Frequency control is carried out only when the frequency drops For controlling lower limit Frequency control is carried out only when ...

Страница 50: ...y valve is carried out Detail OFF delay switch of four way valve The four way valve coil is energized for 160 seconds after the operation is stopped 3 3 3 Four Way Valve Operation Compensation Outline At the beginning of operation as the four way valve is switched the pressure difference to activate the four way valve is acquired when the output frequency is higher than a certain fixed frequency f...

Страница 51: ...limit of frequency is set to keep the discharge pipe temperature from rising further Detail A Hz 32 B Hz 55 C Hz 75 D seconds 200 E seconds 200 F seconds 470 sec Time R13528 Hz Frequency C B D E F A A ºC 120 B ºC 110 C ºC 108 D ºC 106 E ºC 104 Zone Control Stop zone When the temperature reaches the stop zone the compressor stops Dropping zone The upper limit of frequency decreases Keep zone The up...

Страница 52: ...opping zone The upper limit of the compressor frequency is defined as operation frequency 2 Hz After this the output frequency is lowered by 2 Hz every second until it reaches the keep zone Keep zone The present maximum frequency goes on Reset zone Limit of the frequency is canceled Limitation of current dropping and stop value according to the outdoor temperature The current drops when outdoor te...

Страница 53: ... to prevent abnormal high pressure The operating frequency limitation is judged with the indoor heat exchanger temperature A C B C C C 7 5 3 R22433 Reset zone Indoor heat exchanger thermistor temperature Up zone Keep zone Dropping zone Stop zone 0 C C C B C A C 13 C A C B C C C D C E C 60 54 51 49 44 Zone Control Stop zone When the temperature reaches the stop zone the compressor stops Dropping zo...

Страница 54: ...ed as well as normal operation 5 Fan speed control during forced cooling operation The outdoor fan is controlled as well as normal operation during forced cooling operation 6 Fan speed control during POWERFUL operation The rotation speed of the outdoor fan is increased during POWERFUL operation 7 Fan speed control during indoor unit quiet operation The rotation speed of the outdoor fan is reduced ...

Страница 55: ...ressor operates for 6 minutes More than A minutes of accumulated time have passed since the start of the operation or ending the previous defrosting Conditions for Canceling Defrost The judgment is made with the outdoor heat exchanger temperature B C The same value continues A minutes 25 B C 6 30 C Hz 55 D Hz 70 E seconds 60 F seconds 60 G seconds 460 H seconds 60 J seconds 5 K pulse 450 L pulse 4...

Страница 56: ...discharge pipe thermistor is disconnected Feedback Control Target discharge pipe temperature control Detail The followings are the examples of electronic expansion valve control which function in each operation mode Available Not available Control Status Starting operation control Control when the frequency changes Target discharge pipe temperature control Discharge pipe thermistor disconnection c...

Страница 57: ...et opening of the electronic expansion valve is changed according to the frequency shift 3 11 6 High Discharge Pipe Temperature Control When the compressor is operating if the discharge pipe temperature exceeds a certain value the electronic expansion valve opens and the refrigerant runs to the low pressure side This procedure lowers the discharge pipe temperature 3 11 7 Target Discharge Pipe Temp...

Страница 58: ... the following adjustment is made 1 When the operation mode is cooling When the following condition is fulfilled the discharge pipe thermistor disconnection is ascertained Discharge pipe temperature 6 C outdoor heat exchanger temperature 2 When the operation mode is heating When the following condition is fulfilled the discharge pipe thermistor disconnection is ascertained Discharge pipe temperatu...

Страница 59: ...SiMT041509E Remote Controller 44 Part 5 Remote Controller 1 Remote Controller 45 ...

Страница 60: ...it Temperature adjustment buttons AUTO DRY COOL HEAT FAN 18 30 C Not available 18 32 C 10 30 C Not available Displays the current settings In this illustration each section is shown with all its displays on for the purpose of explanation Fan setting button In indoor unit quiet operation operation sound becomes weak The airflow rate also decreases In DRY operation the airflow rate setting is not av...

Страница 61: ...uver moves right and left The flap louver stops when you press the Swing button again Press this button and adjust the day and time with the Select button Press this button again to complete TIMER setting R21440 OUTDOOR UNIT QUIET operation is not available in FAN and DRY operation OUTDOOR UNIT QUIET operation and POWERFUL operation cannot be used at the same time Priority is given to the function...

Страница 62: ...on Compressor Overload 66 4 12 Compressor Lock 68 4 13 DC Fan Lock 69 4 14 Input Overcurrent Detection 70 4 15 Four Way Valve Abnormality 71 4 16 Discharge Pipe Temperature Control 73 4 17 Compressor System Sensor Abnormality 74 4 18 Position Sensor Abnormality 75 4 19 Thermistor or Related Abnormality Outdoor Unit 77 4 20 Electrical Box Temperature Rise 79 4 21 Radiation Fin Temperature Rise 80 4...

Страница 63: ...lamp OFF Check the outdoor temperature Heating operation cannot be used when the outdoor temperature is 18 CWB or higher and cooling operation cannot be used when the outdoor temperature is below 10 CDB Diagnose with remote controller indication 53 The unit operates but does not cool or does not heat Check for wiring and piping errors in the connection between the indoor unit and outdoor unit Chec...

Страница 64: ...r units In either case conduct the diagnostic procedure described in the following pages Service Monitor The indoor unit has a green LED LED A on the control PCB When the microcomputer works in order the LED A blinks Refer to page 9 for the location of LED A 2 2 Outdoor Unit The outdoor unit has a green LED LED A on the PCB When the microcomputer works in order the LED A blinks However the LED A t...

Страница 65: ...ponding codes 2 To return to the normal mode hold the timer cancel button down for 5 seconds When the remote controller is left untouched for 60 seconds it also returns to the normal mode 3 Not all the error codes are displayed When you cannot find the error code try method 2 Refer to page 51 R21282 ARC466 Series Timer cancel button No Code No Code No Code 1 00 14 U0 27 UA 2 A5 15 C7 28 UH 3 E7 16...

Страница 66: ...e same time 5C is displayed on the LCD 2 Select 5C service check with the Temp or Temp button 3 Press the Mode button to enter the service check mode The left side number blinks 4 Press the Temp or Temp button and change the number until you hear the two consecutive beeps or the long beep R11669 R11821 R11672 R11670 R11671 ...

Страница 67: ...p or Temp button and change the number until you hear the long beep 8 Diagnose by the sound beep The left side number does not correspond with the error code two consecutive beeps The left side number corresponds with the error code but the right side number does not long beep Both the left side and right side numbers correspond with the error code 9 Determine the error code The numbers indicated ...

Страница 68: ...related abnormality 58 C9 Room temperature thermistor or related abnormality 58 Outdoor Unit E1 Outdoor unit PCB abnormality 64 E3 Actuation of high pressure switch 65 E5 OL activation compressor overload 66 E6 Compressor lock 68 E7 DC fan lock 69 E8 Input overcurrent detection 70 EA Four way valve abnormality 71 F3 Discharge pipe temperature control 73 H0 Compressor system sensor abnormality 74 H...

Страница 69: ...OK Check the power supply voltage Start operation Voltage as rated Error repeats Check the power supply voltage Start operation Voltage as rated Error repeats Error repeats Combination of the indoor and outdoor unit matched YES NO NO YES NO NO YES R20486 Caution To secure the connection once disconnect the connector and then reconnect it YES NO YES NO YES NO YES Match the compatible models Correct...

Страница 70: ...control During heating operation the indoor heat exchanger temperature is above 60 C Supposed Causes Short circuited air Clogged air filter of the indoor unit Dust accumulation on the indoor heat exchanger Defective indoor heat exchanger thermistor Defective indoor unit PCB Troubleshooting Check No 01 Refer to P 83 NO NO NO Check No 01 Check the indoor heat exchanger thermistor YES YES R21064 YES ...

Страница 71: ...l fan motor operation Error Decision Conditions The detected rotation speed does not reach the demanded rotation speed of the target tap and is less than 50 of the maximum fan motor rotation speed Supposed Causes Remarkable decrease in power supply voltage Layer short inside the fan motor winding Breaking of wire inside the fan motor Breaking of the fan motor lead wires Defective capacitor of the ...

Страница 72: ... power before reconnecting the connector Replace the indoor fan motor Replace the indoor unit PCB control PCB Replace the indoor unit PCB control PCB Does the fan rotate smoothly Does the fan rotate Motor power supply voltage 310 340 VDC Turn off the power and rotate the fan by hand Turn on the power and start operation Check No 02 Check the output of the fan motor connector R22444 YES NO YES NO Y...

Страница 73: ...pposed Causes Disconnection of connector Thermistor corresponding to the error code is defective Defective indoor unit PCB Troubleshooting Check No 01 Refer to P 83 C4 Indoor heat exchanger thermistor C9 Room temperature thermistor YES R21870 NO Check No 01 Check the thermistor resistance value YES NO Caution Correct the connection Replace the defective thermistor Replace the indoor unit PCB contr...

Страница 74: ... Low voltage detection The voltage detected by the DC voltage detection circuit is below 196 V The compressor stops if the error occurs and restarts automatically after 3 minute standby Over voltage detection An over voltage signal is fed from the over voltage detection circuit to the microcomputer over 480 V The compressor stops if the error occurs and restarts automatically after 3 minute standb...

Страница 75: ...supply voltage Check the connection of the compressor harness Disturbance factors Noise Power supply distortion Precaution before turning on the power again Make sure the power has been off for at least 30 seconds Replace the indoor unit PCB control PCB Turn on the power System restarted Repeat a few times Error again within 3 minutes after turning on the power Loose or disconnected NO YES NO Repl...

Страница 76: ...ormal Error Decision Conditions The data sent from the outdoor unit cannot be received normally or the content of the data is abnormal Supposed Causes Power supply voltage is not as specified Reduction of power supply voltage Wiring error Breaking of the connecting wires between the indoor and outdoor units wire No 3 Defective outdoor unit PCB Short circuit inside the fan motor winding Defective i...

Страница 77: ...tween the indoor unit and outdoor unit Is LED A blinking Properly insulated Is there any disturbance Is there any wiring error Check the indoor unit outdoor unit connection wires Check the LED A on the outdoor unit PCB Be sure to turn off the power switch before connecting or disconnecting connectors or parts may be damaged Before you check the LED A cancel the standby electricity saving function ...

Страница 78: ... PCB Defective outdoor unit PCB Disconnection of connector S92 Broken jumpers wires of connector S92 Troubleshooting R22028 Caution NO YES YES YES NO NO NO YES Match the compatible models OK Correct the connection Check the code numbers 2P012345 for example of the indoor and outdoor unit PCB with the Parts List If not matched change for the correct PCB Are the connecting wires connected property R...

Страница 79: ...tary drop of voltage Momentary power failure Troubleshooting Caution Be sure to turn off the power switch before connecting or disconnecting connectors or parts may be damaged Continuously ON or OFF Blink YES R21201 NO Replace the outdoor unit PCB main PCB Ground the system Zero cross signal abnormality Replace the outdoor unit PCB main PCB Check if the outdoor unit is grounded Is LED A blinking G...

Страница 80: ...ken S1PH harness Defective high pressure switch S1PH Troubleshooting NO YES Nearly 0 Ω Resistance Check the resistance between the pins 1 2 on the connector S40 Stop valve open Open the stop valve Nearly 0 Ω Resistance Replace the harness for the high pressure switch Replace the high pressure switch S1PH Disconnect the connector S40 from the PCB Replace the outdoor unit PCB main PCB Disconnect the...

Страница 81: ...error repeats the system is shut down Reset condition Continuous run for about 60 minutes without any other error Supposed Causes Disconnection of discharge pipe thermistor Defective discharge pipe thermistor Disconnection of connector S40 Disconnection of 2 terminals of OL Q1L Defective OL Q1L Broken OL harness Defective electronic expansion valve or coil Defective four way valve or coil Defectiv...

Страница 82: ...the electronic expansion valve or the coil Refer to the refrigerant line check procedure Replace the outdoor unit PCB main PCB Replace the four way valve or the coil Replace the outdoor unit PCB main PCB Discharge pipe thermistor disconnected Check No 01 Check the thermistors Check No 13 Check the four way valve Check No 14 Check the refrigerant line Check No 12 Check the electronic expansion valv...

Страница 83: ...the harnesses U V and W R21067 Caution NO YES YES NO NO YES NO YES Check No 15 Check with the inverter analyzer Turn off the power and reconnect the harnesses Turn on the power again and restart the system Precaution before turning on the power again Make sure the power has been off for at least 30 seconds Correct the power supply or replace the outdoor unit PCB main PCB Open the stop valve Invert...

Страница 84: ...fan Defective fan motor Defective outdoor unit PCB Troubleshooting Check No 16 Refer to P 87 R21669 Caution YES YES NO YES NO NO YES NO NO Turn on the power Rotate the fan YES Check No 16 Check the rotation pulse input on the outdoor unit PCB main PCB Turn off the power and reconnect the connector Remove the foreign matters Replace the outdoor fan motor Replace the fuse Replace the outdoor unit PC...

Страница 85: ...Caution Be sure to turn off the power switch before connecting or disconnecting connectors or parts may be damaged An input overcurrent may result from wrong internal wiring If the system is interrupted by an input overcurrent after the wires have been disconnected and reconnected for part replacement check the wiring again R21863 NO YES YES NO Start operation and measure the input current Check N...

Страница 86: ...lowing condition continues over 10 minutes after operating for 5 minutes Cooling Dry A B 5 C Heating B A 5 C A Room thermistor temperature B Indoor heat exchanger temperature If the error repeats the system is shut down Reset condition Continuous run for about 60 minutes without any other error Supposed Causes Disconnection of four way valve coil Defective four way valve coil or harness Defective ...

Страница 87: ...st clogged Reconnect the thermistor s Caution Be sure to turn off the power switch before connecting or disconnecting connectors or parts may be damaged R20405 Refrigerant shortage Water mixed Stop valve Four way valve coil disconnected loose Harness disconnected Any thermistor disconnected Check No 01 Check the thermistors Check No 14 Check the refrigerant line Check No 13 Check the four way valv...

Страница 88: ...mistor Defective electronic expansion valve or coil Refrigerant shortage Defective four way valve Water mixed in refrigerant Defective stop valve Defective outdoor unit PCB Troubleshooting Check No 01 Refer to P 83 Check No 12 Refer to P 84 Check No 14 Refer to P 85 A C B C 120 104 R20417 Caution NG OK OK OK NG NG Discharge pipe thermistor Outdoor heat exchanger thermistor Outdoor temperature ther...

Страница 89: ...e before compressor start up is below 50 V Supposed Causes Broken or disconnected harness Defective outdoor unit PCB Troubleshooting Caution Be sure to turn off the power switch before connecting or disconnecting connectors or parts may be damaged NO R22016 YES Turn off the power Then turn on the power to restart the system YES NO Replace the harness Replace the outdoor unit PCB main PCB Is the ha...

Страница 90: ...nditions The compressor fails to start in about 15 seconds after the compressor run command signal is sent If the error repeats the system is shut down Reset condition Continuous run for about 11 minutes without any other error Supposed Causes Power supply voltage is not as specified Disconnection of the compressor harness Defective compressor Defective outdoor unit PCB Start up failure caused by ...

Страница 91: ...ort circuit of the diode bridge Check No 15 Check with the inverter analyzer Turn off the power Disconnect the harnesses U V and W Turn on the power Check the electrolytic capacitor voltage Electrical components or compressor harnesses connected as specified Replace the outdoor unit PCB main PCB Correct the power supply or replace the outdoor unit PCB main PCB Replace the compressor Reconnect the ...

Страница 92: ...power on J3 error is judged if the discharge pipe temperature is lower than the heat exchanger temperature Supposed Causes Disconnection of the connector for the thermistor Thermistor corresponding to the error code is defective Defective heat exchanger thermistor in the case of J3 error outdoor heat exchanger thermistor in cooling operation or indoor heat exchanger thermistor in heating operation...

Страница 93: ...or s of the following thermistors Outdoor temperature thermistor Discharge pipe thermistor Outdoor heat exchanger thermistor Cooling Outdoor heat exchanger temperature Heating Indoor heat exchanger temperature Replace the indoor heat exchanger thermistor Replace the outdoor unit PCB main PCB Error displayed again on remote controller Indoor heat exchanger thermistor functioning Check No 01 Check t...

Страница 94: ... outdoor unit PCB Troubleshooting Check No 17 Refer to P 88 Check No 19 Refer to P 89 A C B C C C 90 75 81 Caution WARNING To cool the electrical components the outdoor fan starts when the radiation fin temperature rises above C C The outdoor fan stops when the radiation fin temperature drops below B C R21436 YES NO YES NG NO OK NO YES Turn off the power Then turn on the power to restart the syste...

Страница 95: ...the radiation fin after replacing the outdoor unit PCB Troubleshooting Check No 17 Refer to P 88 Check No 19 Refer to P 89 Note Refer to Silicon Grease on Power Transistor Diode Bridge on page 95 for detail A C B C 90 84 Caution Turn off the power Then turn on the power to restart the system Be sure to turn off the power switch before connecting or disconnecting connectors or parts may be damaged ...

Страница 96: ... rotation speed error occurs while the compressor is running An output overcurrent signal is fed from the output overcurrent detection circuit to the microcomputer If the error repeats the system is shut down Reset condition Continuous run for about 11 minutes without any other error Supposed Causes Poor installation condition Closed stop valve Defective power module Wrong internal wiring Abnormal...

Страница 97: ...he same error occurs Check the power supply voltage Monitor the power supply voltage discharge and suction pressures and other factors for a long term Possible causes Momentary drop of power supply voltage Compressor overload Short circuit Check the installation condition Check with the inverter analyzer Check the power module Not a malfunction Keep observing Check the connectors and other compone...

Страница 98: ... a PCB remove the PCB from the control PCB to measure the resistance When the connector of indoor heat exchanger thermistor is soldered on a PCB remove the thermistor and measure the resistance Thermistor temperature C Resistance kΩ 20 197 8 15 148 2 10 112 1 5 85 60 0 65 93 5 51 14 10 39 99 15 31 52 20 25 02 25 20 00 30 16 10 35 13 04 40 10 62 45 8 707 50 7 176 R25 C 20 kΩ B 3950 K kΩ 150 100 50 ...

Страница 99: ...Valve Check Check No 12 Conduct the followings to check the electronic expansion valve EV 1 Check if the EV connector is correctly connected to the PCB 2 Turn the power off and on again and check to see if the EV generates a latching sound 3 If the EV does not generate a latching sound in the above step 2 disconnect the connector and check the continuity using a multimeter 4 Check the continuity b...

Страница 100: ...valve coil Cooling Dry Not energized Heating Energized Replace the outdoor unit PCB main PCB Replace the four way valve coil Replace the four way valve Four way valve coil resistance at 1000 2000 Ω S80 voltage at 220 240 VAC with compressor on Fig 1 R11904 Fig 1 Voltage at S80 220 240 VAC Time Compressor ON Refrigerant system check Check for refrigerant leakage See the service diagnosis on refrige...

Страница 101: ...or drops to 10 VDC or below before carrying out the service work Reference If the terminals of the compressor are not FASTON terminals difficult to remove the wire on the terminals it is possible to connect wires available on site to the outdoor unit from output side of PCB Do not connect them to the compressor at the same time otherwise it may result in incorrect detection Step 3 Activate power t...

Страница 102: ...e burned due to loosening 5 8 Rotation Pulse Check on the Outdoor Unit PCB Check No 16 Make sure that the voltage of 320 V is applied 1 Set operation off and power off Disconnect the connector S70 2 Check that the voltage between the pins 4 7 is 320 VDC 3 Check that the control voltage between the pins 3 4 is 15 VDC 4 Check that the rotation command voltage between the pins 2 4 is 0 6 5 VDC 5 Keep...

Страница 103: ... dirty Change the installation location or direction Change the installation location or direction Clean the outdoor heat exchanger Change the installation location or direction Check the outdoor temperature The outdoor temperature should be within the operation range R19385 YES YES YES NO NO NO NO YES Is the air filter or indoor outdoor heat exchanger dirty Is the connection pipe deformed Is the ...

Страница 104: ...ferring to the table below If the resistance is or less than 1 kΩ short circuit occurs on the main circuit R21195 YES NO NO YES Outdoor fan system is functioning Check the outdoor fan system Reconnect the connector Is the outdoor fan running Fan motor lead wire connector disconnected Go to Check No 16 Positive terminal of digital multimeter 2 3 4 2 3 1 Negative terminal of digital multimeter 4 2 3...

Страница 105: ...press the protrusion on the connector Follow the procedure below to measure resistance between the terminals of the power module and the terminals of the compressor with a multimeter Evaluate the measurement results referring to the following table Positive terminal of digital multimeter Power module UVW Power module UVW Negative terminal of digital multimeter UVW Power module UVW Power module Res...

Страница 106: ...ation and Field Settings 1 Tips for Servicing 92 1 1 Pump Down Operation 92 1 2 Forced Cooling Operation 92 2 Trial Operation 93 3 Field Settings 94 3 1 When 2 Units are Installed in 1 Room 94 3 2 Jumper Settings 94 4 Silicon Grease on Power Transistor Diode Bridge 95 ...

Страница 107: ... Forced Cooling Operation Indoor Unit Gas stop valve Valve cap Close Liquid stop valve Service port R13628 Hexagonal wrench Item Forced Cooling Conditions The forced cooling operation is allowed when both the following conditions are met 1 The outdoor unit is not abnormal and not in the 3 minute standby mode 2 The outdoor unit is not operating Start Press the forced cooling operation ON OFF button...

Страница 108: ...e 30 C Trial operation may be disabled in either operation mode depending on the room temperature After trial operation is complete set the temperature to a normal level 26 C 28 C in cooling 20 C 24 C in heating operation For protection the system does not start for 3 minutes after it is turned off ARC466 Series 1 Press the On Off button to turn on the system 2 Press the center of the Temp button ...

Страница 109: ...place the remote controller if you cut the jumper on the left side The heating operation will not be available when the jumper on the left side is cut 3 2 Jumper Settings Indoor Unit For the location of the jumper refer to page 9 Caution Replace the PCB if you accidentally cut a wrong jumper Jumpers are necessary for electronic circuit Improper operation may occur if you cut any of them R9665 JA A...

Страница 110: ...bridge Detail 1 Wipe off the old silicon grease completely 2 Apply the silicon grease evenly See the illustrations below for examples of application 3 Tighten the screws of the power transistor diode bridge 4 Make sure that the heat radiation parts are firmly contacted to the radiation fin Note Smoke emission may be caused by bad heat radiation when the silicon grease is not appropriately applied ...

Страница 111: ...SiMT041509E Appendix 96 Part 8 Appendix 1 Piping Diagrams 97 1 1 Indoor Unit 97 1 2 Outdoor Unit 98 2 Wiring Diagrams 101 2 1 Indoor Unit 101 2 2 Outdoor Unit 102 ...

Страница 112: ...HEAT EXCHANGER CROSS FLOW FAN M FAN MOTOR HEADER 12 7 CuT REFRIGERANT FLOW COOLING FIELD PIPING 15 9 CuT FIELD PIPING 6 4 CuT THERMISTOR ON HEAT EXCH 4D092476 12 7CuT 7 9CuT M DISTRIBUTOR HEADER 6 4CuT COOLING 12 7CuT HEATING INDOOR UNIT HEAT EXCHANGER CROSS FLOW FAN FAN MOTOR FIELD PIPING FIELD PIPING REFRIGERANT FLOW THERMISTOR ON HEAT EXCH 4D065823E INDOOR UNIT 7 9CuT DISTRIBUTOR HEAT EXCHANGER...

Страница 113: ...TED VALVE MUFFLER WITH FILTER HEAT EXCHANGER CONDENSER THERMISTOR OUTDOOR TEMPERATURE THERMISTOR 4 WAY VALVE DISCHARGE PIPE THERMISTOR 3D092780 OUTDOOR UNIT HEAT EXCHANGER 7 9 CuT 7 9 CuT 12 7 CuT 7 9 CuT 9 5 CuT 6 4 CuT 6 4 CuT STRAINER 7 9 CuT M 6 4 CuT 12 7 CuT 12 7 CuT MUFFLER 9 5 CuT 7 9 CuT HPS MUFFLER 12 7 CuT 9 5 CuT 12 7 CuT REFRIGERANT FLOW COMPRESSOR ACCUMULATOR COOLING 12 7 CuT DC FAN ...

Страница 114: ...D PIPING LIQUID 6 4 CuT FIELD PIPING GAS 15 9 CuT GAS LINE STOP VALVE 4 WAY VALVE DISCHARGE PIPE THERMISTOR 3D092776 OUTDOOR UNIT HEAT EXCHANGER 7 9 CuT 7 9 CuT 12 7 CuT 7 9 CuT 7 9 CuT 6 4 CuT STRAINER DC FAN MOTOR M PROPELLER FAN RECEIVER 6 4 CuT 12 7 CuT 12 7 CuT 6 4 CuT MUFFLER 9 5 CuT 7 9 CuT HPS MUFFLER 6 4 CuT 12 7 CuT 9 5 CuT 12 7 CuT REFRIGERANT FLOW 12 7 CuT COMPRESSOR ACCUMULATOR COOLIN...

Страница 115: ...OR TEMPERATURE THERMISTOR HEAT EXCHANGER CONDENSER THERMISTOR MUFFLER WITH FILTER MOTOR OPERATED VALVE MUFFLER WITH FILTER 3D092775 OUTDOOR UNIT HEAT EXCHANGER 7 9 CuT 7 9 CuT 12 7 CuT 7 9 CuT 9 5 CuT 6 4 CuT 6 4 CuT STRAINER 7 9 CuT M 6 4 CuT 12 7 CuT 12 7 CuT MUFFLER 9 5 CuT 7 9 CuT HPS MUFFLER 12 7 CuT 9 5 CuT 12 7 CuT REFRIGERANT FLOW COMPRESSOR ACCUMULATOR COOLING HEATING 15 9 CuT DC FAN MOTO...

Страница 116: ...4 BLU S25 BLK BRN 1 1 PCB4 BLK ORG S36 1 WHT 3 S41 S47 S32 BLK 4 M1F 9 11 4 1 3 2 1 1 8 7 14 10 16 12 6 15 2 13 3 5 BLK BLK BLK BLK BLK PNK PNK PNK BLU BLU BLU ORG ORG ORG RED RED RED YLW YLW YLW S48 PCB2 t 1 3 INDOOR R2T MSW MSW MSW M1S M3S M2S BZ C101 C102 FG F1U F2U H1P H3P MR10 M1F M1S M3S PCB1 PCB4 R1T R2T S1 S49 SW1 V1 X1M BUZZER CAPACITOR FRAME GROUND FUSE PILOT LAMP MAGNETIC RELAY FAN MOTO...

Страница 117: ... 3 FU3 30A FU1 3 15A FU2 3 15A Z1C N 4 MS 3 IN CASE OF HEAT PUMP TYPE JUMPER LOCAL SETTING IN CASE OF COOLING ONLY TYPE POWER SUPPLY 1 220 240V 50 60Hz 1 REFER TO THE NAMEPLATE FOR THE POWER REQUIREMENTS C110 DB1 FU1 FU2 FU3 IPM1 L M1C M1F M2F MR4 MR30 MRM10 MRM20 N CAPACITOR DIODE BRIDGE FUSE INTELLIGENT POWER MODULE LIVE COMPRESSOR MOTOR FAN MOTOR MAGNETIC RELAY NEUTRAL PAM PCB PS Q1L R1T R2T R3...

Страница 118: ...Revision History Month Year Version Revised contents 07 2015 SiMT041509E First edition ...

Страница 119: ...ories supplied or specified by Daikin Ask a qualified installer or contractor to install those parts and accessories Use of unauthorised parts and accessories or improper installation of parts and accessories can result in water or refrigerant leakage electrical shock fire or explosion z Read the user s manual carefully before using this product The user s manual provides important safety instruct...

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