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Control Specification

SiUS121736EA

105

Functions and Control

Details

The following are the examples of electronic expansion valve control which function in each
operation mode.

1 : When all the indoor units are operating, liquid pipe temperature control is conducted.
2 : SC (subcooling) control is conducted for the operating indoor units, when some of the units are not operating.
3 : Liquid pipe temperature control for stopped room is conducted for the non-operating indoor units.

Fully closed when power is turned on

Open control when starting

(Control of target discharge pipe

temperature)

Control when the operating room is

changed

(Control of target discharge pipe

temperature)

Pressure equalizing control

Open control when starting

(Control of target discharge pipe

temperature)

Control when the operating room is

changed

(Control of target discharge pipe

temperature)

(Defrost control)

Pressure equalizing control

Open control when starting

Continue

Pressure equalizing control

Operation pattern

(R21181)

When power is turned on

Cooling, 1 room operation

Cooling, 2 rooms operation to
Cooling, 4 rooms operation

Stop

Heating, 1 room operation

Heating, 2 rooms operation

Stop

Heating operation

Discharge pipe thermistor

disconnection control

Stop

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2

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3

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3

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3

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Gas pipe isothermal control

SC (subcooling) control

Control when the frequency changes

Control for abnormally high discharge

pipe temperature

Oil recovery control

Indoor freeze-up protection control

Liquid pipe temperature control

Liquid pipe temperature control for

non-operating units

Dew prevention control for indoor rotor

z

: Available

— : Not available

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Содержание 4MXS-R Series

Страница 1: ...Service Manual 2MXS N 3 4MXS R Series SiUS121736EA Applied Models z Inverter Multi Heat Pump Multi Split Type Air Conditioners...

Страница 2: ...RVJU CTXG12QVJUS CDXS15LVJU FDMQ18RVJU CTXG18QVJUW CDXS18LVJU FDMQ24RVJU CTXG18QVJUS CDXS24LVJU FTXR09TVJUW FVXS09NVJU FFQ09Q2VJU FTXR09TVJUS FVXS12NVJU FFQ12Q2VJU FTXR12TVJUW FVXS15NVJU FFQ15Q2VJU FT...

Страница 3: ...FTXS15 18 24LVJU 30 1 4 CDXS07 15 18 24LVJU FDXS09 12LVJU 32 1 5 FVXS09 12 15 18NVJU 34 1 6 FDMQ09 12 15 18 24RVJU 36 1 7 FFQ09 12 15 18Q2VJU 38 2 Sensor Kit for FFQ Series 39 2 1 BRYQ60A2W S 39 3 Wi...

Страница 4: ...eating Operation Only 85 3 9 Presence and Floor Sensors Option 86 3 10 Other Functions 89 4 Control Specification 90 4 1 Thermistor Functions 90 4 2 Mode Hierarchy 92 4 3 Frequency Control 93 4 4 Cont...

Страница 5: ...l System Abnormality 164 6 3 Indoor Fan Motor or Related Abnormality 165 6 4 Indoor Fan PCB Abnormality 169 6 5 Humidifier or Related Abnormality 170 6 6 Thermistor or Related Abnormality 171 6 7 Pres...

Страница 6: ...ve Performance Check 213 8 7 Inverter Unit Refrigerant System Check 213 8 8 Inverter Analyzer Check 214 8 9 Rotation Pulse Check on the Outdoor Unit PCB 215 8 10 Installation Condition Check 216 8 11...

Страница 7: ...SiUS121736EA Table of Contents vi 3 Operation Limit 267...

Страница 8: ...on is shown in the illustration or near the symbol 1 1 Warnings and Cautions Regarding Safety of Workers This manual is for the person in charge of maintenance and inspection Warning Do not store equi...

Страница 9: ...e use of materials for R 22 refrigerant models may cause a serious accident such as a damage of refrigerant cycle or equipment failure Do not mix air or gas other than the specified refrigerant R 32 R...

Страница 10: ...xcessive heat generation or fire Do not use a joined power cable or extension cable or share the same power outlet with other electrical appliances since it may cause an electrical shock excessive hea...

Страница 11: ...new installation site has sufficient strength to withstand the weight of the equipment If the installation site does not have sufficient strength or the installation work is not conducted securely th...

Страница 12: ...Improper earth grounding may cause an electrical shock Be sure to measure insulation resistance after the repair and make sure that the resistance is 1 M or higher Faulty insulation may cause an elect...

Страница 13: ...tion is used when there is danger that the reader through incorrect manipulation may damage equipment lose data get an unexpected result or have to restart part of a procedure Note Note A Note provide...

Страница 14: ...SiUS121736EA 1 List of Functions Part 1 List of Functions 1 RA Indoor Unit 2 2 SA Indoor Unit 7 3 Outdoor Unit 9...

Страница 15: ...ED z 3 D airflow z Wiring error check function COMFORT AIRFLOW operation z Anti corrosion treatment of outdoor heat exchanger Comfort Control Auto fan speed z Indoor unit quiet operation z Flexibility...

Страница 16: ...nction COMFORT AIRFLOW operation z Anti corrosion treatment of outdoor heat exchanger Comfort Control Auto fan speed z Indoor unit quiet operation z Flexibility Multi split split type compatible indoo...

Страница 17: ...or check function COMFORT AIRFLOW operation z Anti corrosion treatment of outdoor heat exchanger Comfort Control Auto fan speed z Indoor unit quiet operation z Flexibility Multi split split type compa...

Страница 18: ...gnosis R C LED z z Auto swing right and left Wiring error check function 3 D airflow Anti corrosion treatment of outdoor heat exchanger COMFORT AIRFLOW operation Comfort Control Switchable fan speed z...

Страница 19: ...r check function COMFORT AIRFLOW operation Anti corrosion treatment of outdoor heat exchanger Comfort Control Auto fan speed z Indoor unit quiet operation z Flexibility Multi split split type compatib...

Страница 20: ...AIRFLOW operation Worry Free Reliability Durability Auto restart after power failure z z Switchable fan speed 3 steps z z Self diagnosis R C LED z z Comfort Control Auto fan speed z Wiring error check...

Страница 21: ...function Auto swing right and left Anti corrosion treatment of outdoor heat exchanger Individual flap control z 1 3 D airflow Flexibility Multi split split type compatible indoor unit z z COMFORT AIRF...

Страница 22: ...Wiring error check function z z 3 D airflow Anti corrosion treatment of outdoor heat exchanger z z COMFORT AIRFLOW operation Comfort Control Auto fan speed Flexibility Multi split split type compatibl...

Страница 23: ...SiUS121736EA Specifications 10 Part 2 Specifications 1 RA Indoor Unit 11 2 SA Indoor Unit 19 3 Outdoor Unit 22...

Страница 24: ...Piping Connections Liquid in mm 1 4 6 4 1 4 6 4 Gas in mm 3 8 9 5 3 8 9 5 Drain in mm 11 16 18 11 16 18 Drawing No 3D105562 3D105565 Model CTXG12QVJUW CTXG12QVJUS Cooling Heating Cooling Heating Rate...

Страница 25: ...Connections Liquid in mm 1 4 6 4 1 4 6 4 Gas in mm 1 2 12 7 1 2 12 7 Drain in mm 11 16 18 11 16 18 Drawing No 3D105564 3D105567 Model FTXR09TVJUW FTXR09TVJUS Cooling Heating Cooling Heating Rated Capa...

Страница 26: ...ections Liquid in mm 1 4 6 4 1 4 6 4 Gas in mm 3 8 9 5 3 8 9 5 Drain in mm 11 16 18 11 16 18 Drawing No C 3D120044 C 3D120044 Model FTXR18TVJUW FTXR18TVJUS Cooling Heating Cooling Heating Rated Capaci...

Страница 27: ...ass Front Panel Color White White Airflow Rate H cfm m min 381 10 8 420 11 9 403 11 4 438 12 4 M 279 7 9 321 9 1 307 8 7 335 9 5 L 194 5 5 233 6 6 205 5 8 240 6 8 SL 145 4 1 219 6 2 155 4 4 212 6 0 Fa...

Страница 28: ...Gross Weight Gross Mass Lbs kg 44 20 44 20 Sound Pressure Level H M L SL dB A 45 40 35 32 43 38 33 30 46 41 36 33 45 40 35 32 Sound Power Level dB 61 59 62 61 Heat Insulation Both Liquid and Gas Pipe...

Страница 29: ...Dimensions H W D in mm 10 13 16 36 5 16 30 1 4 274 923 768 10 13 16 36 5 16 30 1 4 274 923 768 Weight Mass Lbs kg 47 21 47 21 Gross Weight Gross Mass Lbs kg 64 29 64 29 Sound Pressure Level H M L dB...

Страница 30: ...Sirocco Fan Motor Output W 130 130 Speed Steps 5 Steps Quiet Auto 5 Steps Quiet Auto Air Filter Removable Washable Mildew Proof Removable Washable Mildew Proof Running Current Rated A 0 79 0 79 0 79...

Страница 31: ...and Gas Pipes Piping Connections Liquid in mm 1 4 6 4 1 4 6 4 Gas in mm 3 8 9 5 3 8 9 5 Drain in mm 13 16 20 13 16 20 Drawing No 3D101722 3D101724 Model FVXS15NVJU FVXS18NVJU Cooling Heating Cooling...

Страница 32: ...Piping Connections Liquid in mm 1 4 6 4 Flare 1 4 6 4 Flare Gas in mm 3 8 9 5 Flare 3 8 9 5 Flare Drain in mm I D 1 25 O D 1 1 4 32 I D 1 25 O D 1 1 4 32 Remote Controller Option Wired BRC1E73 BRC1E73...

Страница 33: ...H W D in mm 9 5 8 39 3 8 31 1 2 245 1 000 800 Coil Type Cross Fin Coil Rows Stages Fin per Inch 3 26 18 Face Area ft m 3 1 8 0 288 Fan Type Sirocco Fan Motor Output W 230 Airflow Rate H M L cfm m min...

Страница 34: ...5 3 8 9 5 Drain in mm VP20 O D 1 1 32 26 VP20 O D 1 1 32 26 Drawing No 3D106061A 3D106062 Model FFQ15Q2VJU FFQ18Q2VJU Cooling Heating Cooling Heating Rated Capacity 15 kBtu h Class 18 kBtu h Class De...

Страница 35: ...H W D in mm 28 15 16 34 1 4 12 5 8 735 870 320 28 15 16 34 1 4 12 5 8 735 870 320 Packaged Dimension H W D in mm 31 7 8 41 5 16 17 1 2 810 1 050 444 31 7 8 41 5 16 17 1 2 810 1 050 444 Weight Mass Lbs...

Страница 36: ...320 28 15 16 34 1 4 12 5 8 735 870 320 Packaged Dimension H W D in mm 31 7 8 41 5 16 17 1 2 810 1 050 444 31 7 8 41 5 16 17 1 2 810 1 050 444 Weight Mass Lbs kg 137 62 137 62 Gross Weight Gross Mass...

Страница 37: ...34 1 4 12 5 8 735 870 320 Packaged Dimension H W D in mm 31 7 8 41 5 16 17 1 2 810 1 050 444 31 7 8 41 5 16 17 1 2 810 1 050 444 Weight Mass Lbs kg 139 63 139 63 Gross Weight Gross Mass Lbs kg 157 71...

Страница 38: ...3 FTXS15 18 24LVJU 30 1 4 CDXS07 15 18 24LVJU FDXS09 12LVJU 32 1 5 FVXS09 12 15 18NVJU 34 1 6 FDMQ09 12 15 18 24RVJU 36 1 7 FFQ09 12 15 18Q2VJU 38 2 Sensor Kit for FFQ Series 39 2 1 BRYQ60A2W S 39 3 W...

Страница 39: ...4 S41 Connector for swing motors 5 S42 Connector for reduction motor front panel mechanism and limit switch 6 S46 Connector for display signal receiver PCB A2P 7 S200 Connector for DC fan motor 8 H1 H...

Страница 40: ...Improper operation may occur if you cut any of them INTELLIGENT EYE Sensor PCB A3P 1 S51 Connector for control PCB A1P 2 S52 Connector for room temperature thermistor 3 S1W Indoor unit ON OFF button...

Страница 41: ...25 Connector for INTELLIGENT EYE sensor PCB PCB4 4 S32 Indoor heat exchanger thermistor 5 S41 Connector for swing motors 6 S46 Connector for display PCB PCB3 7 S47 Connector for signal receiver PCB PC...

Страница 42: ...es on the appropriate wiring diagram 1 S48 Connector for control PCB PCB1 3P210728 1 S48 1 S49 Connector for control PCB PCB1 2 SW1 Indoor unit ON OFF button 3 LED1 H1P LED for operation green 4 LED2...

Страница 43: ...nector for INTELLIGENT EYE sensor PCB PCB4 4 S32 Indoor heat exchanger thermistor 5 S41 Connector for swing motors 6 S46 Connector for display PCB PCB3 7 S47 Connector for signal receiver PCB PCB2 8 H...

Страница 44: ...es on the appropriate wiring diagram 1 S48 Connector for control PCB PCB1 3P224121 1 S48 1 S49 Connector for control PCB PCB1 2 SW1 Indoor unit ON OFF button 3 LED1 H1P LED for operation green 4 LED2...

Страница 45: ...an motor Hall IC 3 S21 Connector for centralized control HA 4 S26 Connector for display signal receiver PCB A2P 5 S32 Connector for indoor heat exchanger thermistor 6 H1 H2 H3 Connector for terminal b...

Страница 46: ...does not function Note The symbols in the parenthesis are the names on the appropriate wiring diagram 1 S1 Connector for control PCB A1P 2 SW1 S1W Indoor unit ON OFF button 3 LED2 H2P LED for timer ye...

Страница 47: ...4 S32 Indoor heat exchanger thermistor 5 S41 Connector for lower air outlet motor 6 S42 Connector for swing motor 7 S46 Connector for display signal receiver PCB PCB4 8 S48 Connector for sensor PCB PC...

Страница 48: ...2 RTH2 R1T Room temperature thermistor S49 RTH2 3P191450 1 1 S27 Connector for control PCB PCB2 2 SW2 S2W 4 Switch for upward airflow limit setting Refer to page 236 for details Keep the other switch...

Страница 49: ...A Connector for drain pump motor 5 X27A Connector for terminal block for power supply 6 X28A Connector for power supply wiring option 7 X30A Connector for terminal block for wired remote controller 8...

Страница 50: ...A2P 1 X3A Connector for control PCB A1P 2 X6A Connector for reactor 3 X8A Connector for indoor fan motor 4 X10A Connector for terminal block for power supply 5 F2U Fuse 5 A 250 V 6 F4U Fuse 6 3 A 250...

Страница 51: ...Connector for drain pump motor 7 X27A Connector for terminal block for inter unit wiring 8 X30A Connector for terminal block for wired remote controller 9 X33A Connector for adaptor for wiring option...

Страница 52: ...Printed Circuit Board Connector Wiring Diagram 2 Sensor Kit for FFQ Series 2 1 BRYQ60A2W S Outline Thermopile Sensor A4P Pyroelectric Sensor A5P Thermopile sensor A4P Pyroelectric sensor A5P R25074 C...

Страница 53: ...emote Controller Printed Circuit Board Connector Wiring Diagram 40 3 Wired Remote Controller 3 1 BRC1E73 Wired Remote Controller PCB 1 P1 P2 Terminal for indoor unit 2 R4T Room temperature thermistor...

Страница 54: ...ing Diagram 4 Wireless Remote Controller Receiver for FDMQ series 4 1 BRC082A43 Wireless Remote Controller PCB 1 SS1 MAIN SUB setting switch Refer to page 243 for details 2 SS2 Address setting switch...

Страница 55: ...propriate wiring diagram 1 X1A Connector for receiver A3P 2 X2A Connector for control PCB A1P 3 SS1 MAIN SUB setting switch Refer to page 246 for details 4 SS2 Address setting switch Refer to page 246...

Страница 56: ...t 24 36 class 6 S23 yellow Connector for electronic expansion valve coil D port 36 class 7 S40 Connector for overload protector 8 S70 Connector for DC fan motor 9 S80 Connector for four way valve coil...

Страница 57: ...SiUS121736EA Outdoor Unit Printed Circuit Board Connector Wiring Diagram 44 V401 FU1 E1 E2 HL1 HN1 V3 V2 FU3 S S15 S23 S22 S21 S20 S201 S92 S90 S93 S40 S70 FU2 S80 U V W S202 2P350358 10 2P350358 11...

Страница 58: ...een 3 LED1 LED5 LED for service monitor red 4 SW1 Forced operation ON OFF switch Refer to page 222 for details 5 SW2 Operation mode switch Refer to page 222 for details 6 SW3 Wiring error check switch...

Страница 59: ...rflow Direction Control 74 3 2 Fan Speed Control for Indoor Unit 75 3 3 Program Dry Operation 76 3 4 Clock and Calendar Setting With Wired Remote Controller BRC1E73 77 3 5 Schedule TIMER Operation Wit...

Страница 60: ...SiUS121736EA 47 Functions and Control 4 12 Low Hz High Pressure Limit 103 4 13 Electronic Expansion Valve Control 104 4 14 Malfunctions 109...

Страница 61: ...n the temperature detected by room temperature thermistor and the temperature of lower part of the room depending on the type of the indoor unit or installation condition In practice the temperature c...

Страница 62: ...and maximum frequency Forced Cooling Operation Refer to page 222 for details Phase Description 1 The supplied AC power source is converted into the DC power source for the present 2 The DC power sour...

Страница 63: ...or dry operation the flap retracts into the indoor unit Then cool air can be blown far and distributed all over the room Heating During heating operation the large flap directs airflow downward to spr...

Страница 64: ...Cooling Dry Heating Fan 07 09 12 class 15 18 24 class Flap up and down Cooling Dry Heating Upward airflow limit OFF R6831 R6829 Upward airflow limit ON R6832 R6830 15 45 35 55 R13527 30 70 30 65 R1140...

Страница 65: ...ed and the airflow direction changes in the order shown in the following diagram 1 The louvers move from the right to the left 2 The flaps move downward 3 The louvers move from the left to the right 4...

Страница 66: ...the upper air outlet Use this switch when you do not want air coming out of the lower air outlet e g while sleeping Air is blown from the upper outlet only Front panel The blow pattern is automaticall...

Страница 67: ...0 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...

Страница 68: ...he 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 min...

Страница 69: ...3 0 C 5 4 F CTXG FTXR CTXS FTXS series Tr Tt 2 5 C 4 5 F CDXS FDXS FVXS series 2 Cooling Heating switching point Tr Tt 2 5 C 4 5 F CTXG FTXR series Tr Tt 3 0 C 5 4 F CTXS FTXS CDXS FDXS FVXS series 3...

Страница 70: ...r being in the zone 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 t...

Страница 71: ...wers it slightly in heating This prevents excessive cooling or heating to ensure comfortable sleeping conditions and also conserves electricity Cooling Heating Zone B Zone A OFF ON Zone C 2 0 C 3 6 F...

Страница 72: ...O button on the wireless remote controller Details When this function is activated the maximum capacity also decreases The remote controller can send the ECONO command when the unit is in cooling heat...

Страница 73: ...pling every 20 msec If the motion sensor detects 10 times or more of the wave output in one second in total and the High signal continues for 3 sec the microcomputer judges humans are in the room as t...

Страница 74: ...area A and B Shift the airflow direction to area B left side 2 Human detection signal ON in area A Shift the airflow direction to area B left side 3 Human detection signal ON in area B Shift the airf...

Страница 75: ...from the motion sensor in 20 minutes the microcomputer judges that nobody is in the room and operates the unit at a temperature shifted from the target temperature Cooling Dry 1 2 C 1 8 3 6 F higher H...

Страница 76: ...in cooling Note POWERFUL operation cannot be used together with ECONO COMFORT AIRFLOW or OUTDOOR UNIT QUIET operation Operation mode Fan speed Target temperature COOL H tap A rpm 18 C 64 4 F DRY Dry r...

Страница 77: ...door unit Operating status can be monitored even in automatic operation in accordance with the actual operation mode The lamp color changes according to the operation AUTO Red Blue DRY Green COOL Blue...

Страница 78: ...the current day of the week 3 Press CLOCK button blinks 4 Press SELECT or SELECT button to adjust the clock to the present time Holding down SELECT or SELECT button increases or decreases the time dis...

Страница 79: ...tings are used from Monday through Friday while different timer settings are used for the weekend Make timer settings for programs Tuesday to Friday Saturday Sunday Program 1 Program 2 Program 3 Progr...

Страница 80: ...o 4 settings can be made per day Pressing changes the reservation number and the day of the week 3 Press The day of the week and reservation number will be set and blink 4 Press to select the desired...

Страница 81: ...rom STEP 4 is displayed on the LCD and WEEKLY TIMER operation is activated The TIMER lamp periodically lights orange The multi monitor lamp will not light orange if all the reservation settings are de...

Страница 82: ...whole reservation of the selected day of the week will be copied Be sure to direct the remote controller toward the indoor unit and check for a receiving tone and blinking of the multi monitor lamp T...

Страница 83: ...mode Proceed to Setting mode STEP 4 is displayed on the LCD and WEEKLY TIMER operation is activated The TIMER lamp periodically lights orange The multi monitor lamp will not light orange if all the r...

Страница 84: ...select the day of the week and the reservation number to be deleted and or blink Pressing changes the ON OFF TIMER mode in sequence Selecting blank will cancel any reservation you may have This funct...

Страница 85: ...Receiving Sign When the indoor unit receives a signal from the remote controller the unit emits a signal receiving sound and the operation lamp blinks 2 14 3 Indoor Unit ON OFF Button ON OFF button is...

Страница 86: ...ure even a momentary one occurs during the operation the system restarts automatically in the same conditions as before when the power supply is restored to the conditions prior to the power failure N...

Страница 87: ...direction is controlled automatically Actual operation may be different from what is displayed on the remote controller Room temperature is higher than the remote controller s set temperature in heati...

Страница 88: ...ction purposes The system may turn off the fan when the room temperature is satisfied It is normal for a delay to occur when changing the fan speed If the Auto is selected for the fan speed the fan sp...

Страница 89: ...emperature 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 Room thermistor temperature at star...

Страница 90: ...ng down the button causes the number to change continuously Press buttons to select Clock Calendar on the main menu screen Press Menu OK button to display the clock calendar screen Select Month with b...

Страница 91: ...Change the minute with buttons Holding down the button causes the number to change continuously Press Menu OK button The confirmation screen will appear The date can be set between January 1 2015 and...

Страница 92: ...__ Indicates that the temperature setpoint and setback temperature setpoint for this time period is not specified The last active setpoint will be utilized Refer to Setback function on page 83 for de...

Страница 93: ...ssed 3 Press buttons to select Yes on the confirmation screen Pressing Menu OK button enters the daily patterns in the schedule and takes you back to the main menu screen R24074 1 The schedule screen...

Страница 94: ...perature setpoint and setback temperature setpoint for this time period is not specified The last active setpoint will be utilized Indicates that the setback function is disabled for this time period...

Страница 95: ...n Press Menu OK button to display the enable disable screen Press buttons to select Enable or Disable on the enable disable screen Press Menu OK button after selecting the item The confirmation screen...

Страница 96: ...on by the setback control When enabled the Setback mode becomes active when the indoor unit is turned off by either the user a schedule event or an off timer Setback function is not available by defau...

Страница 97: ...d then turns ON again after 5 seconds 4 After A3 is determined and the unit comes to an abnormal stop the thermostat will remain OFF even if the float switch turns ON again 3 7 3 If the Float Switch i...

Страница 98: ...tline At startup with thermostat ON or after the completion of defrosting in heating operation the indoor unit fan is controlled to prevent cold air from blasting out and ensure startup capacity Detai...

Страница 99: ...enabled only when decoration panel BYFQ60C2W1W S sensor kit BRYQ60A2W S and wired remote controller BRC1E73 are connected to the main unit and draft prevention is set to enabled on the wired remote co...

Страница 100: ...mote controller Factory setting is disabled Setting on the remote controller 2 3 4 5 1 Press buttons to select Auto setback by Sensor Press Menu OK button to display Auto setback by Sensor menu Press...

Страница 101: ...ion air temperature but floor temperature This function is enabled when decoration panel BYFQ60C2WAW S and sensor kit BRYQ60A2W S is connected to the main unit 2 3 4 1 Press buttons to select Auto off...

Страница 102: ...ons prior to the power failure Note It takes 3 minutes to restart the operation because the 3 minute standby function is activated 3 10 3 Emergency Operation Switch With Wireless Remote Controller Out...

Страница 103: ...charge pipe temperature can be obtained In cooling operation the outdoor heat exchanger thermistor is used for detecting the disconnection of the discharge pipe thermistor When the discharge pipe temp...

Страница 104: ...protection control If the indoor heat exchanger temperature drops abnormally the operating frequency becomes lower or the operation halts In cooling operation the indoor heat exchanger thermistor is...

Страница 105: ...e command which is set by each room in accordance with the procedure and determines the operation mode of the system The following procedure is taken when the modes conflict with each other 1 The syst...

Страница 106: ...discharge pipe temperature low Hz high pressure limit heating peak cut freeze up protection defrost 3 Determine lower limit frequency The maximum value is set as the lower limit frequency among the fr...

Страница 107: ...ing to the D value When D value is low the frequency is lowered When D value is high the frequency is increased 3 Limit of frequency increasing range When the difference between the input current and...

Страница 108: ...FF delay switch of the four way valve is carried out Details OFF delay switch of four way valve The four way valve coil is energized for 150 seconds after the operation is stopped 4 4 3 Four Way Valve...

Страница 109: ...rature from rising further Details 18 class 24 36 class A Hz 55 35 55 B Hz 65 48 65 C Hz 80 70 80 D seconds 180 120 E seconds 360 200 500 F seconds 400 180 470 A D E F B C R13528 Hz Frequency sec Time...

Страница 110: ...ped Dropping 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...

Страница 111: ...ion the signals sent from the indoor units control the operating frequency limitation and prevent freezing of the indoor heat exchanger The signals from the indoor units are divided into zones Details...

Страница 112: ...eeze up protection control starts when any of the following conditions is satisfied z The indoor heat exchanger temperature remains at A or lower for 1 minute z The accumulated time that the indoor he...

Страница 113: ...ed The maximum value of the indoor heat exchanger temperature controls the following excluding stopped rooms A 65 C 149 F B 55 C 131 F C 54 C 129 2 F D 52 C 125 6 F E 50 C 122 F Zone Control Stop zone...

Страница 114: ...f heating room decreases When the outdoor temperature is more than 10 C 50 F the fan is turned off for 30 seconds 6 Fan speed control during forced operation The outdoor fan is controlled as well as n...

Страница 115: ...eration The compressor 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 Th...

Страница 116: ...class 24 36 class A minutes 33 26 B C 4 12 4 12 C F 39 2 53 6 39 2 53 6 D Hz 58 58 E Hz 74 42 F seconds 60 90 G seconds 120 60 H seconds 650 590 J seconds 80 40 K pulse 320 400 L pulse 300 250 M puls...

Страница 117: ...ooms being air conditioned 4 Liquid pipe temperature control for stopped rooms 5 Dew prevention control for indoor rotor Open Control 1 Electronic expansion valve control when starting operation 2 Ele...

Страница 118: ...of target discharge pipe temperature Control when the operating room is changed Control of target discharge pipe temperature Defrost control Pressure equalizing control Open control when starting Cont...

Страница 119: ...ectronic expansion valve opening is controlled when the operation starts and prevents superheating or liquid compression 4 13 5 Control when the Frequency Changes When the target discharge pipe temper...

Страница 120: ...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 10 8 F outdoor heat exchanger t...

Страница 121: ...d pipe temperature thermistor becomes constant 4 13 11 Target Discharge Pipe Temperature Control The target discharge pipe temperature is obtained from the indoor and outdoor heat exchanger temperatur...

Страница 122: ...e OL compressor head temperature exceeds 130 C 266 F the compressor stops 4 14 3 Refrigerant Shortage Control Outline If the power consumption is below the specified value and the frequency is higher...

Страница 123: ...able Remote Controller 111 2 ARC466A36 112 3 ARC452A21 114 4 ARC452A23 116 5 ARC466A21 118 6 Wired Remote Controller BRC944B2 120 7 Wired Remote Controller BRC1E73 121 8 Wireless Remote Controller BRC...

Страница 124: ...0 CTXG12QVJUW S CTXG18QVJUW S FTXR09TVJUW S FTXR12TVJUW S FTXR18TVJUW S CTXS07LVJU ARC452A21 114 FTXS09LVJU FTXS12LVJU FTXS15LVJU FTXS18LVJU FTXS24LVJU CDXS07LVJU ARC452A23 116 FDXS09LVJU FDXS12LVJU C...

Страница 125: ...er at the indoor unit If there is anything to block signals between the unit and the remote controller such as a curtain the unit will not operate The maximum distance for communication is about 19 11...

Страница 126: ...time with Select button Press this button again to complete TIMER setting R24616 Weekly button Program button Copy button Back button Next button Lamp brightness setting button OUTDOOR UNIT QUIET ope...

Страница 127: ...tting 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 eve...

Страница 128: ...ECONO operation SWING 5 buttons Press this button and adjust the day and time with SELECT button Press this button again to complete TIMER setting Cancels the timer setting Cannot be used for the WEEK...

Страница 129: ...ton 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 every time y...

Страница 130: ...n to complete TIMER setting CLOCK 3 button Changes the ON OFF TIMER settings TIMER CANCEL button Cancels the timer setting Press this button and adjust the time with SELECT button Press this button ag...

Страница 131: ...each section is shown with all its displays on for the purpose of explanation To use the remote controller aim the transmitter at the indoor unit If there is anything blocking the signals between the...

Страница 132: ...is button again to complete TIMER setting Clock 5 button It changes the ON OFF TIMER and WEEKLY TIMER settings Timer Cancel button Cancels the timer setting Cannot be used for the WEEKLY TIMER operati...

Страница 133: ...SiUS121736EA Wired Remote Controller BRC944B2 Remote Controller 120 6 Wired Remote Controller BRC944B2...

Страница 134: ...ote Controller 7 Wired Remote Controller BRC1E73 3 Menu OK button 8 On Off button 10 Cancel button 9 Operation lamp 11 LCD with backlight 4 Up button 5 Down button 6 Right button 7 Left button 1 Opera...

Страница 135: ...klight will be illuminated for approximately 30 seconds by pressing any button If two remote controllers are used to control a single indoor unit only the controller accessed first will have backlight...

Страница 136: ...ault Detailed and Simple displays can be selected in the main menu 10 Changeover controlled by the master indoor unit 9 Under centralized control 4 Stand by for Defrost Hot start The airflow direction...

Страница 137: ...mple 2 Fan speed 3 Setpoint 1 Operation mode 11 Setback 14 Selectable Display Item 4 Stand by for Defrost Hot start Depending on the field settings while the indoor unit is stopped OFF may be displaye...

Страница 138: ...is limited Displayed when another indoor unit on the system has the authority to change the operation mode between cool and heat Displayed when an energy recovery ventilator is connected Ventilation...

Страница 139: ...unit model does not include oscillating louvers this item will not be displayed Displayed if the clock is set If the clock is not set will be displayed 12 hour time format is displayed by default Sel...

Страница 140: ...ss Remote Controller BRC082A43 R25006 7 9 12 10 11 13 14 15 8 1 3 4 5 2 6 DOWN FAN UP ON OFF M H L hr hr TEST MODE TIMER RESERVE CANCEL DOWN UP TEST FAN TIME TEMP ON OFF M H L hr hr TEST F F The situa...

Страница 141: ...PERATURE SETTING BUTTON Use this button for SETTING TEMPERATURE Operates with the front cover of the remote controller closed PROGRAMMING TIMER BUTTON Use this button for programming START and or STOP...

Страница 142: ...Wireless Remote Controller BRC082A41W BRC082A42W S SiUS121736EA 129 Remote Controller 9 Wireless Remote Controller BRC082A41W BRC082A42W S R23936 R23937...

Страница 143: ...Press the button again and the system will stop Press this button to select the fan speed LOW MEDIUM or HIGH of your choice Use this button for setting temperature TIMER MODE START STOP BUTTON TIMER R...

Страница 144: ...r SA Indoor Unit 163 6 1 Indoor Unit PCB Abnormality 163 6 2 Drain Level Control System Abnormality 164 6 3 Indoor Fan Motor or Related Abnormality 165 6 4 Indoor Fan PCB Abnormality 169 6 5 Humidifie...

Страница 145: ...203 7 18 Electrical Box Temperature Rise 205 7 19 Radiation Fin Temperature Rise 206 7 20 Output Overcurrent Detection 207 8 Check 209 8 1 Thermistor Resistance Check 209 8 2 Indoor Fan Motor Connect...

Страница 146: ...peration Operation lamp OFF Check the outdoor temperature Heating cooling operations are not available when the outdoor temperature is out of the operation limit Check the reference page for the opera...

Страница 147: ...e indoor or outdoor unit is activated or when the thermistor malfunctions 2 A signal transmission error occurs between the indoor and outdoor units In either case conduct the diagnostic procedure desc...

Страница 148: ...rror occurs the operation lamp on the receiver blinks FFQ series with wireless remote controller BRC082A41W BRC082A42W S In case of wireless remote controller a transmitter board A2P and a receiver A3...

Страница 149: ...mp is normal If the lamp stops blinking after the above steps there is no malfunction Operation stops and operation lamp blinks only for the indoor unit that has a different operation mode set later T...

Страница 150: ...wo consecutive beeps indicate non corresponding codes 2 To return to the normal mode hold down TIMER CANCEL button for 5 seconds When the remote controller is left untouched for 60 seconds it also ret...

Страница 151: ...he long beep 3 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 num...

Страница 152: ...does not long beep Both the left side and right side number corresponds with the error code 7 Determine the error code The numbers indicated when you hear the long beep are the error code Refer to pa...

Страница 153: ...ate non corresponding codes 2 To return to the normal mode hold down Timer Cancel button for 5 seconds When the remote controller is left untouched for 60 seconds it also returns to the normal mode 3...

Страница 154: ...the same time 5C is displayed on the LCD 2 Select 5C service check with Temp or Temp button 3 Press Mode button to enter the service check mode The left side number blinks 4 Press Temp or Temp button...

Страница 155: ...7 Press Temp 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...

Страница 156: ...lter Auto Clean Maintenance Information Configuration Current Settings Clock Calendar Daylight Saving Time Language Press Cancel button once Press Menu OK button once Basic Screen Operation mode chang...

Страница 157: ...on Operation lamp 2 Error Code A1 Contact Info 0123 456 7890 Indoor Model 000 Outdoor Model 000 If an error occurs either one of the following items will flash in the basic screen The Operation lamp w...

Страница 158: ...be made z Filter cleaning sign time z Others Following codes can be checked z Error codes z Indoor model code Service data can be obtained z Error code history z Temperature data of various sections S...

Страница 159: ...he left 0 upper digit indication of the error code blinks Step Action UP button DOWN button R15408 If you hear Then 3 short beeps Follow all steps below 1 short beep Follow steps 3 and 4 Continue the...

Страница 160: ...Press OPERATION MODE SELECTOR button The right 0 lower digit indication of the error code blinks Step Action UP button DOWN button R15411 UP DOWN 4 5 6 7 8 9 U P L J F H E C A 0 If you hear Then 2 sho...

Страница 161: ...ION MODE SELECTOR button to return to the normal mode If you do not press any button for 1 minute the remote controller automatically returns to the normal mode Step Action UP button DOWN button R1541...

Страница 162: ...d outdoor unit 160 UA Mismatching of indoor unit and outdoor unit 162 Error Codes Description Reference Page 00 Normal condition A1 Indoor unit PCB abnormality 163 A3 Drain level control system abnorm...

Страница 163: ...ther rooms 184 j h h i i h U0 Refrigerant shortage 179 j i h h i h U2 Low voltage detection or over voltage detection 181 j h i h h h U3 Wiring error check unexecuted 183 j i h i i h A5 Anti icing con...

Страница 164: ...ty Error Code A1 Method of Error Detection The system checks if the circuit works properly within the microcomputer of the indoor unit Error Decision Conditions The system cannot set the internal sett...

Страница 165: ...outdoor unit matched YES NO NO YES NO NO YES R23407 Caution To secure the connection disconnect the connectors once and then reconnect YES NO YES NO YES NO YES Match the compatible models Correct the...

Страница 166: ...peak cut control During heating operation the indoor heat exchanger temperature is above 65 C 149 F Supposed Causes Short circuited air Clogged air filter of the indoor unit Dust accumulation on the i...

Страница 167: ...otation speed detected by the Hall IC during indoor fan motor operation determines abnormal fan motor operation Error Decision Conditions The detected rotation speed does not reach the demanded rotati...

Страница 168: ...rn off the 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 fa...

Страница 169: ...d by the Hall IC during indoor fan motor operation determines abnormal fan motor operation Error Decision Conditions The detected rotation speed does not reach the demanded rotation speed of the targe...

Страница 170: ...otor Replace the indoor unit PCB control PCB Replace the indoor fan motor Replace the capacitor Replace the indoor unit PCB control PCB Replace the indoor fan motor Replace the indoor unit PCB control...

Страница 171: ...r Thermistor corresponding to the error code is defective Defective indoor unit PCB Troubleshooting Check No 01 Refer to P 209 C4 Indoor heat exchanger thermistor C9 Room temperature thermistor Note W...

Страница 172: ...Turn on the power Wait until the initialization finishes Operate the unit by the indoor unit ON OFF button YES YES YES YES NO NO NO NO Replace the harness and reduction motor Replace the assembly of...

Страница 173: ...checked whether it is normal Error Decision Conditions The data sent from the outdoor unit cannot be received normally or the content of the data is abnormal Supposed Causes Reduction of power supply...

Страница 174: ...ndoor unit and the outdoor unit Replace the outdoor unit PCB main PCB Replace the connection wires between the indoor unit and outdoor unit Is LED A blinking Properly insulated Is there any disturbanc...

Страница 175: ...g models interconnected Wrong wiring of connecting wires Wrong indoor unit PCB or outdoor unit PCB mounted Defective indoor unit PCB Defective outdoor unit PCB Troubleshooting R23001 Caution NO YES YE...

Страница 176: ...erased either within the computer or externally and usually requires more voltage for erasure than the common 5 volts used in logic circuits It functions like non volatile RAM but writing to EEPROM i...

Страница 177: ...ff the power switch before connecting or disconnecting connectors or parts may be damaged Connect the drain pump Replace the indoor unit PCB control PCB Replace the drain pump There is a drain system...

Страница 178: ...the indoor unit PCB and the fan PCB Defective fan PCB Defective fan motor No fuse continuity Troubleshooting Check No 02 Refer to P 210 Connect the connector correctly Turn OFF the power supply and w...

Страница 179: ...r Each resistance between the pins is equal to or lower than 1 Replace the fan motor Replace the fan PCB A2P The HAP lamp on the indoor unit control PCB is blinking while the HAP lamp on the fan PCB i...

Страница 180: ...r Code A6 Method of Error Detection The rotation speed detected by the Hall IC during indoor fan motor operation determines abnormal fan motor operation Error Decision Conditions The fan motor is not...

Страница 181: ...an motor connector YES YES NO NO Note The motor may break when the motor connector is disconnected while the power is turned on Be sure to turn off the power before reconnecting the connector Replace...

Страница 182: ...witch before connecting or disconnecting connectors or parts may be damaged Check for the indoor unit control PCB A1P and the fan PCB A2P Connect the connector correctly NO YES YES Is the connector X3...

Страница 183: ...Clogged electric expansion value in humidifier s Defective indoor unit PCB Troubleshooting Note The system continues to operate with the thermostat OFF even while the error code is displayed YES YES N...

Страница 184: ...roceed as follows C4 Indoor heat exchanger thermistor 1 liquid pipe R2T C5 Indoor heat exchanger thermistor 2 R3T C9 Room temperature thermistor R1T Note When replacing the defective thermistor s repl...

Страница 185: ...PCB Troubleshooting If the cause of the problem is related to the sensors the sensors should be checked prior to changing the indoor unit PCB Note When replacing the defective sensor s replace the sen...

Страница 186: ...unit is running Supposed Causes Defective room temperature thermistor in the wired remote controller Defective wired remote controller PCB External factor such as noise Troubleshooting Note To delete...

Страница 187: ...s normal 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 out of specification Redu...

Страница 188: ...or unit and the outdoor unit Replace the outdoor unit PCB main PCB Replace the connection wires between the indoor unit and outdoor unit Is LED A blinking Properly insulated Is there any disturbance I...

Страница 189: ...2 and 243 Caution Be sure to turn off the power switch before connecting or disconnecting connectors or parts may be damaged Are both remote controllers set to MAIN Do the service monitors of all the...

Страница 190: ...rollers when using 2 remote controllers Defective remote controller PCB Troubleshooting Note For the way to change MAIN SUB setting of remote controllers refer to pages 242 and 243 Turn the power off...

Страница 191: ...wiring Check again YES YES NO NO Connect the indoor outdoor units correctly YES YES YES YES NO NO NO Blink R24591 Is the combination of indoor outdoor units correct Do the service monitors of all the...

Страница 192: ...ormal value Error Decision Conditions The following conditions continue for 7 minutes Input current A output frequency B Output frequency C If the error repeats the system is shut down Reset condition...

Страница 193: ...witch before connecting or disconnecting connectors or parts may be damaged OK NO YES Replace the outdoor unit PCB main PCB Replace the compressor Completed Error again R23654 Caution YES NG NO NO YES...

Страница 194: ...ds Outdoor Unit Low voltage detection The voltage detected by the DC voltage detection circuit is below 150 V for 0 1 second If the error repeats the system is shut down Reset condition Continuous run...

Страница 195: ...e power 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 fo...

Страница 196: ...k after the memory was cleared Supposed Causes The wiring error switch SW3 may have been pressed for 10 seconds or more and the memory may have been deleted The unit cannot be operated unless wiring e...

Страница 197: ...door units Supposed Causes Anti icing function in other rooms Power supply voltage out of specification Wrong models interconnected Wrong indoor unit PCB or outdoor unit PCB mounted Troubleshooting No...

Страница 198: ...are located in a shut down room Error Decision Conditions In cooling operation the both conditions A and B are met for 5 minutes A Room temperature Indoor heat exchanger temperature 10 C 18 F B Indoo...

Страница 199: ...lace the outdoor heat exchanger thermistor Replace the room temperature thermistor Replace the room temperature thermistor or indoor heat exchanger thermistor Do the vacuum drying Replace the indoor u...

Страница 200: ...in abnormal running order Supposed Causes Defective outdoor unit PCB Noise Momentary drop of voltage Momentary power failure Troubleshooting R21809 Caution Be sure to turn off the power switch before...

Страница 201: ...ror 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 ther...

Страница 202: ...Replace 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...

Страница 203: ...roubleshooting Check No 12 Refer to P 212 Check No 15 Refer to P 214 Turn off the power Disconnect the harnesses U V and W R21067 Caution NO YES YES NO NO YES NO YES Check No 15 Check with the inverte...

Страница 204: ...s Disconnection of the fan motor Foreign matter stuck in the fan Defective fan motor Defective outdoor unit PCB Troubleshooting Check No 16 Refer to P 215 R20416 Caution YES YES NO YES NO NO YES NO Tu...

Страница 205: ...to P 216 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...

Страница 206: ...ditions The following condition continues for A seconds after the compressor has started Cooling operation The lowest liquid pipe temperature among the rooms in operation Tde 45 C 81 F Heating operati...

Страница 207: ...ctive or dust 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 mi...

Страница 208: ...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...

Страница 209: ...eat exchanger thermistor Defective outdoor unit PCB Troubleshooting Check No 01 Refer to P 209 Check No 12 Refer to P 212 Check No 17 Refer to P 216 Check No 18 Refer to P 216 Check No 19 Refer to P 2...

Страница 210: ...fore the compressor starts The system checks the DC current of the compressor right after the compressor starts Error Decision Conditions The power supply voltage and the DC voltage is obviously low o...

Страница 211: ...the outdoor unit PCB and measure the resistance value between reactor terminals with multimeter Disconnect the compressor relay harness from the outdoor unit PCB and measure the resistance value betw...

Страница 212: ...ompressor running condition through the position detection circuit Error Decision Conditions If the error repeats the system is shut down Reset condition Continuous run for about 5 minutes without any...

Страница 213: ...dge 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 ha...

Страница 214: ...ssor running frequency and CT detected input current Error Decision Conditions The compressor running frequency is more than A Hz and input current is less than B A If the error repeats the system is...

Страница 215: ...estart operation Check No 15 Check with the inverter analyzer Inverter analyzer RSUK0917C 100 50 Voltage within the allowable range Power supply voltage 15 Replace the outdoor unit PCB main PCB Check...

Страница 216: ...0 04 V with the power on J3 error is judged if the discharge pipe temperature is lower than the heat exchanger temperature The system is shut down if all the units are judged as the J8 error Supposed...

Страница 217: ...wer than the heat exchanger temperature Replace the defective thermistor s Outdoor temperature thermistor Discharge pipe thermistor Outdoor heat exchanger thermistor Liquid pipe thermistor Gas pipe th...

Страница 218: ...ctor Defective outdoor unit PCB Troubleshooting Check No 17 Refer to P 216 Check No 19 Refer to P 217 A B C 100 C 212 F 70 C 158 F 85 C 185 F Caution WARNING To cool the electrical components the outd...

Страница 219: ...d properly on the radiation fin after replacing the outdoor unit PCB Troubleshooting Check No 17 Refer to P 216 Check No 19 Refer to P 217 Note Refer to Silicone Grease on Power Transistor Diode Bridg...

Страница 220: ...rs while the compressor is running A rotation speed error occurs while the compressor is running An output overcurrent signal is fed from the output overcurrent detection circuit to the microcomputer...

Страница 221: ...ror 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 Comp...

Страница 222: ...B 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 Resistance k C F 20 4 19...

Страница 223: ...following table FFQ Series 1 Check the connection of connector 2 Check motor power supply voltage output pins 5 8 3 Check motor control voltage pins 5 4 4 Check rotation command voltage output pins 5...

Страница 224: ...p 1 Defective PCB Replace the PCB control PCB If NG in step 2 Defective Hall IC Replace the indoor fan motor If OK in both steps 1 and 2 Replace the PCB control PCB 8 4 Power Supply Waveform Check Che...

Страница 225: ...aulty If the system keeps operating with a defective electronic expansion valve the following problem may occur Valveopening position Possible problem Check method Open Cooling Flowing noise of refrig...

Страница 226: ...alve coil Cooling Dry Defrost 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 20...

Страница 227: ...arged voltage of the built in smoothing electrolytic capacitor drops to 10 VDC or below before carrying out the service work Reference If the terminals of the compressor are not FASTON terminals diffi...

Страница 228: ...ned due to loosening 8 9 Rotation Pulse Check on the Outdoor Unit PCB Check No 16 Outdoor fan motor Make sure that the voltage of 320 V is applied 1 Set operation off and power off Disconnect the conn...

Страница 229: ...y 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 tem...

Страница 230: ...erring to the table below If the resistance is or less than 1 k short circuit occurs on the main circuit R21195 YES NO NO YES Outdoor fan system is functioning Check the outdoor fan system Reconnect t...

Страница 231: ...g to the drawing of the model in question Be careful never to touch any live parts To prevent an electrical shock use a multimeter to check that the voltage between FU2 and DC is 50 V or less The surf...

Страница 232: ...he protrusion on the connector Follow the procedure below to measure resistance between the or terminal of the power module and the U V or W terminal of the compressor with a multimeter Evaluate the m...

Страница 233: ...mp Down Operation 221 2 Forced Cooling Operation 222 3 Wiring Error Check Function 223 4 Trial Operation 225 4 1 RA Indoor Unit 225 4 2 SA Indoor Unit 227 5 Field Settings 230 5 1 Outdoor Unit 230 5 2...

Страница 234: ...the unit 1 Remove the valve cap from liquid stop valve and gas stop valve 2 Carry out forced cooling operation 3 After 5 to 10 minutes close the liquid stop valve with a hexagonal wrench 4 After 2 to...

Страница 235: ...monitor PCB switch cover 1 screw 4 Switch SW5 and SW6 to off 5 Turn the operation mode switch SW2 to COOL 6 Screw the service monitor PCB switch cover back on 1 screw 7 Turn on the power 8 Push the f...

Страница 236: ...this function Procedure 1 Press the wiring error check switch SW3 on the service monitor PCB of the outdoor unit and the wiring error check function is activated 2 In about 15 20 minutes the check fi...

Страница 237: ...inking LED means the room that is connected with Port A The 2nd blinking LED means the one connected with Port B Ex Suppose the LED indicators are blinking as follows The above means that Port A is co...

Страница 238: ...highest programmable temperature 30 C 86 F 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...

Страница 239: ...s R11676 2 4 5 1 6 2 3 3 Test Items Symptom Indoor and outdoor units are installed properly on solid bases Fall vibration noise No refrigerant gas leaks Incomplete cooling heating function Refrigerant...

Страница 240: ...s and parts such as the movement of the flaps are working properly To protect the air conditioner restart operation is disabled for 3 minutes after the system has been turned off 4 After trial operati...

Страница 241: ...ction is actuated according to the setting For operation of airflow direction setting see the operation manual 7 After the operation of airflow direction is confirmed press Menu OK button Basic screen...

Страница 242: ...complete cooling heating function Refrigerant gas and liquid pipes and indoor drain hose extension are thermally insulated Water leakage Draining line is properly installed Water leakage Does the powe...

Страница 243: ...acity to the prioritized room and the capacities for the other indoor units will be slightly reduced 3 OUTDOOR UNIT QUIET operation When the OUTDOOR UNIT QUIET operation is selected in the prioritized...

Страница 244: ...to be used initial settings must be made when the unit is installed Explain the function of NIGHT QUIET mode as described below to the customer and confirm whether or not the customer wants to use NIG...

Страница 245: ...eft side The heating operation will not be available when the DIP switch is set to the right side ARC466A21 ARC466A36 The remote controller is common to the heat pump model and cooling only model Caut...

Страница 246: ...enheit or Celsius for temperature display ARC452A21 ARC452A23 Press TEMP and TEMP buttons at the same time for 5 seconds to change the unit of temperature display ARC466A21 ARC466A36 Press the upper s...

Страница 247: ...eries 1 Remove the front grille 2 Remove the electrical box 3 Remove the shield plate of the electrical box 4 Cut the address setting jumper JA on the PCB Caution Replace the PCB if you accidentally c...

Страница 248: ...t exchanger thermistor 6 Remove the shield plate 8 tabs 7 Cut the address setting jumper JA on the indoor unit PCB Caution Replace the PCB if you accidentally cut a wrong jumper Jumpers are necessary...

Страница 249: ...15 18 24LVJU FDXS09 12LVJU page 32 FVXS09 12 15 18NVJU page 34 ARC452 series ARC466 series Jumper ADDRESS R12065 EXIST CUT 1 2 R18416 ADDRESS EXIST 1 CUT 2 Jumper Do not cut the left jumper Jumper on...

Страница 250: ...can not be set from SUB remote controller Wired Remote Controller BRC1E73 a Unit No b First code No c Second code No d Mode 1 Press and hold Cancel button for 4 seconds or longer Service settings menu...

Страница 251: ...it can be changed When SECOND CODE NO is displayed as there is no function 6 Press Menu OK button Setting confirmation screen is displayed 7 Select and press Menu OK button Setting details are determi...

Страница 252: ...least 4 seconds to enter the Field Set mode 2 Select the desired Mode No with the MODE button 3 Press the button and select the First code No 4 Press the button and select the Second code No 5 Press t...

Страница 253: ...rmistor Enabled Disabled 3 Filter cleaning sign Display No display 12 22 0 Optional accessories output selection field selection of output for adaptor for wiring Compressor Operation output Error outp...

Страница 254: ...20 0 Filter cleaning sign interval used to change filter cleaning display interval according to filter contamination Longlife filter Light Approx 2 500 hrs Heavy Approx 1 250 hrs Standard filter Appr...

Страница 255: ...controlled by 2 remote controllers Make sure to set the sub remote controller when the above message is displayed Hold Mode button for 4 seconds or longer to set When the display is changed from Main...

Страница 256: ...wireless remote controller with 1 indoor unit change the MAIN SUB switch of the signal receiver PCB Signal Receiver PCB Setting MAIN SUB switch Set the MAIN SUB setting switch SS1 on the signal recei...

Страница 257: ...the setting 5 Hold down TEST button to quit the field setting mode and return to the normal display Multiple Settings or When the indoor unit is controlled by an outside controller central remote cont...

Страница 258: ...No label on the receiver and the back of the wireless remote controller Note Set the Unit No of the receiver and the wireless remote controller to be the equal If the settings differ the signal from t...

Страница 259: ...ler with 1 indoor unit change the MAIN SUB switch of the transmitter board Transmitter Board MAIN SUB switch When using both a wired and a wireless remote controller for 1 indoor unit the wired contro...

Страница 260: ...onfirm the setting 5 Hold down TEST button to quit the field setting mode and return to the normal display Multiple Settings or When the indoor unit is controlled by an outside controller central remo...

Страница 261: ...nding unit number labels onto both air outlet of the decoration panel and onto back of the wireless remote controller Note Set the Unit No of the receiver and the wireless remote controller to be the...

Страница 262: ...bridge Details 1 Wipe off the old silicone grease completely 2 Apply the silicone grease evenly See the illustrations below for examples of application 3 Tighten the screws of the power transistor dio...

Страница 263: ...SiUS121736EA Appendix 250 Part 8 Appendix 1 Piping Diagrams 251 1 1 Indoor Unit 251 1 2 Outdoor Unit 254 2 Wiring Diagrams 256 2 1 Indoor Unit 256 2 2 Outdoor Unit 263 3 Operation Limit 267...

Страница 264: ...4D101010 Indoor unit 1 4 CuT 3 8 CuT Heat exchanger thermistor Heat exchanger Cross flow fan Fan motor Field piping 1 2 CuT Field piping 1 4 CuT Refrigerant flow Cooling Heating INDOOR UNIT 1 4 CuT HE...

Страница 265: ...EAT EXCHANGER FIELD PIPING 1 4CuT SIROCCO FAN M FAN MOTOR 3 8CuT FIELD PIPING 3 8CuT REFRIGERANT FLOW COOLING HEATING 4D074621A THERMISTOR ONHEATEXCH INDOOR UNIT 1 4 6 4mm CuT HEAT EXCHANGER FIELD PIP...

Страница 266: ...H REFRIGERANT FLOW COOLING HEATING 4D091794 INDOOR UNIT MUFFLER ASSY HEAT EXCHANGER 1 4 CuT 9 32 CuT 1 4 CuT 1 4 CuT 1 4 CuT 1 4 CuT M 1 4 CuT FAN MOTOR TURBO FAN 1 4 CuT 3 8 CuT REFRIGERANT FLOW COOL...

Страница 267: ...uT ROOM B 1 2 CuT FIELD PIPING LIQUID ELECTRONIC EXPANSION VALVE LIQUID PIPE THERMISTOR EVA EVB 3D093190A OUTDOOR UNIT HEAT EXCHANGER EVA EVB EVC HEADER 5 16 CuT 5 16 CuT 5 16 CuT 1 4 CuT 1 4 CuT 1 4...

Страница 268: ...ULATOR COOLING HEATING 1 2 CuT ACCUMULATOR OUTDOOR UNIT HEAT EXCHANGER OUTDOOR AIR THERMISTOR HEAT EXCHANGER CONDENSER THERMISTOR CAPILLARY TUBE MUFFLER WITH FILTER LIQUID LINE STOP VALVE FOUR WAY VAL...

Страница 269: ...K BLK BLK BLK BLK BLK BLK BLK BLK BLK BLK WHT RED BLU BRN ORG WHT RED GRN YLW GRN YLW RED ORG YLW BLU OUTDOOR INDOOR Field wiring NOTE When the main power is turned off and then back on again operatio...

Страница 270: ...11 3 1 4 15 9 1 14 5 8 7 10 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 M3S M2S M1S LED1 H1P LED2 H2P LED3 H3P RTH1 R1T INTEL...

Страница 271: ...WHT 3 S41 S47 S32 BLK 4 M1F 5 1 11 1 16 2 7 13 1 15 3 12 2 9 4 3 14 10 8 6 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 M3S M2...

Страница 272: ...BLK S7 10 10 1 GRY YLW RTH1 S32 2 1 2 1 3 C1 WHT BRN BRN t M t 1 Q1M PPL R1T INDOOR 130 C 266 F BLU R2T M1F WIRELESS REMOTE CONTROLLER TRANSMISSION CIRCUIT NOTE THAT OPERATION WILL RESTART AUTOMATICAL...

Страница 273: ...S21 t RED 1 ORG S49 S48 M YLW M1S PNK R1T BLU 6 PCB1 S41 RED 1 t ORG M YLW S32 M2S PNK BLU R2T 5 INDOOR WIRELESS REMOTE CONTROLLER SIGNAL RECEIVER TRANSMISSION CIRCUIT FIELD WIRING NOTE THAT OPERATION...

Страница 274: ...Wiring Diagrams SiUS121736EA 261 Appendix FDMQ09 12 15 18 24RVJU Note A1P Control PCB A2P Indoor fan PCB Refer to Part 3 for Printed Circuit Board Connector Wiring Diagram 3D112629A...

Страница 275: ...CAPACITOR M1F MAGNETIC RELAY FAN MOTOR DRAIN PUMP MOTOR SWING MOTOR SWITCHING POWER SUPPLY FLOAT SWITCH NOISE FILTER FERRITE CORE FERRITE CORE DIODE BRIDGE RECEIVER TRANSMITTER TERMINAL BLOCK TERMINA...

Страница 276: ...INDOOR OUTDOOR FIELD WIRING TO INDOOR UNIT ROOM B TO INDOOR UNIT ROOM A SHEET METAL Z1C N 3 FU3 30A Z4C N 3 ROOM A 1 S20 1 5 ROOM B 1 5 ROOM C 1 5 ROOM D FU1 3 15A ROOM A ROOM B ROOM A ROOM B GAS PIP...

Страница 277: ...T R1T R10T Q1L Y1E Y2E ROOM A ROOM A ROOM B ROOM B DISCHARGE CONDENSER OUTDOOR OUTDOOR INDOOR GAS PIPE LIQUID PIPE FIELD WIRING TO INDOOR UNIT ROOM B TO INDOOR UNIT ROOM A WHT ROOM A RED ROOM B FU3 30...

Страница 278: ...1T Q1L Y3E Y1E Y2E ROOM B ROOM B ROOM A ROOM C ROOM A ROOM C DISCHARGE OUTDOOR CONDENSER INDOOR OUTDOOR FIELD WIRING POWER SUPPLY TO INDOOR UNIT ROOM B TO INDOOR UNIT ROOM A TO INDOOR UNIT ROOM C FU3...

Страница 279: ...7T R6T Q1L Y2E Y4E Y1E Y3E ROOM C ROOM A ROOM D ROOM B ROOM C ROOM A ROOM D ROOM B DISCHARGE CONDENSER OUTDOOR OUTDOOR INDOOR FIELD WIRING SHEET METAL TO INDOOR UNIT ROOM B TO INDOOR UNIT ROOM A TO IN...

Страница 280: ...122 114 8 59 9 59 104 50 86 41 Pull down period Continuous operation 68 Outdoor temp FDB Continuous operation Outdoor temp FWB 32 50 23 32 14 14 5 5 FDB 57 2 50 86 73 4 68 82 4 50 68 86 Indoor temp F...

Страница 281: ...Revision History Month Year Version Revised contents 01 2018 SiUS121736E First edition 06 2020 SiUS121736EA Model Addition FTXR09 12 18TVJUW S 2MXS18NMVJUA 3MXS24RMVJUA 4MXS36RMVJUA...

Страница 282: ...Use of unauthorized 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 care...

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