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Service
Manual

Inverter Pair

Wall Mounted Type FTX-N Series
Floor Standing Type FVXS-N Series

SiUS091601E

[Applied Models]

Inverter Pair : Heat Pump

Содержание FTX09NMVJU

Страница 1: ...Service Manual Inverter Pair Wall Mounted Type FTX N Series Floor Standing Type FVXS N Series SiUS091601E Applied Models z Inverter Pair Heat Pump...

Страница 2: ...Contents Inverter Pair Wall Mounted Type FTX N Series Floor Standing Type FVXS N Series zHeat Pump Indoor Unit FTX09NMVJU FVXS09NVJU FTX12NMVJU FVXS12NVJU FTX15NMVJU FVXS15NVJU Outdoor Unit RXL09QMVJU...

Страница 3: ...Control 19 1 Main Functions 20 1 1 Temperature Control 20 1 2 Frequency Principle 20 1 3 Airflow Direction Control 22 1 4 Fan Speed Control for Indoor Unit 25 1 5 Program Dry Operation 26 1 6 Automat...

Страница 4: ...door Unit 75 4 6 Low voltage Detection or Over voltage Detection 76 4 7 Signal Transmission Error Between Indoor Unit and Outdoor Unit 78 4 8 Unspecified Voltage Between Indoor Unit and Outdoor Unit 8...

Страница 5: ...ower Module Check 111 Part 7 Trial Operation and Field Settings 113 1 Pump Down Operation 114 2 Forced Cooling Operation 115 3 Trial Operation 116 4 Field Settings 118 4 1 Temperature Display Switch 1...

Страница 6: ...ding Safety of Workers Warning Do not store equipment in a room with fire sources e g naked flames gas appliances electric heaters Be sure to disconnect the power cable from the socket before disassem...

Страница 7: ...ipment failure Do not mix air or gas other than the specified refrigerant R 32 R 410A R 22 in the refrigerant system If air enters the refrigerant system an excessively high pressure results causing e...

Страница 8: ...able and lead wires are scratched or have deteriorated be sure to replace them Damaged cable and wires may cause an electrical shock excessive heat generation or fire Do not use a joined power cable o...

Страница 9: ...ke sure that there is no leak If the leaking point cannot be located and the repair work must be stopped be sure to pump down and close the service valve to prevent refrigerant gas from leaking into t...

Страница 10: ...generation fire or an electrical shock If the installation platform or frame has corroded replace it A corroded installation platform or frame may cause the unit to fall resulting in injury Check the...

Страница 11: ...on 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 provides...

Страница 12: ...SiUS091601E 1 List of Functions Part 1 List of Functions 1 Functions 2...

Страница 13: ...error check function Wide angle louvers vertical blade z z Anti corrosion treatment of outdoor heat exchanger z z Auto swing up and down z z Auto swing right and left Flexibility Multi split split ty...

Страница 14: ...function Wide angle louvers vertical blade z Anti corrosion treatment of outdoor heat exchanger z Auto swing up and down z Auto swing right and left Flexibility Multi split split type compatible indoo...

Страница 15: ...SiUS091601E Specifications 4 Part 2 Specifications 1 Specifications 5...

Страница 16: ...ft Horizontal Downward Air Filter Removable Washable Mildew Proof Removable Washable Mildew Proof Running Current Rated A 0 25 0 23 0 23 0 21 0 28 0 25 0 25 0 23 Power Consumption Rated W 28 28 25 25...

Страница 17: ...d Air Filter Removable Washable Mildew Proof Running Current Rated A 0 23 0 21 0 25 0 23 Power Consumption Rated W 33 33 38 38 Power Factor Rated 69 0 68 3 73 1 71 8 Temperature Control Microcomputer...

Страница 18: ...Downward Air Filter Removable Washable Mildew Proof Removable Washable Mildew Proof Running Current Rated A 0 14 0 13 0 15 0 14 0 14 0 13 0 15 0 14 Power Consumption Rated W 15 15 17 17 15 15 17 17 Po...

Страница 19: ...d Air Filter Removable Washable Mildew Proof Running Current Rated A 0 19 0 17 0 21 0 19 Power Consumption Rated W 27 27 34 34 Power Factor Rated 68 3 69 1 77 8 77 8 Temperature Control Microcomputer...

Страница 20: ...rd Connector Wiring Diagram Part 3 Printed Circuit Board Connector Wiring Diagram 1 Indoor Unit 10 1 1 FTX09 12NMVJU 10 1 2 FTX15NMVJU 12 1 3 FVXS09 12 15NVJU 14 2 Outdoor Unit 16 2 1 RXL09QMVJU 16 2...

Страница 21: ...ntrol PCB PCB1 1 S6 Connector for swing motor horizontal blade 2 S26 Connector for display PCB 3 S32 Connector for indoor heat exchanger thermistor 4 S200 Connector for DC fan motor 5 H1 H2 H3 FG Conn...

Страница 22: ...re the names on the appropriate wiring diagram 1 S27 Connector for control PCB 2 SW1 S1W Forced cooling operation ON OFF button Refer to page 115 for detail 3 LED1 H1P LED for operation green 4 LED2 H...

Страница 23: ...am 12 1 2 FTX15NMVJU Control PCB PCB2 1 S6 Connector for swing motor horizontal blade 2 S26 Connector for display PCB 3 S32 Connector for indoor heat exchanger thermistor 4 S200 Connector for DC fan m...

Страница 24: ...board 2 S800 Connector for control PCB 3 FG HE Connector for ground 4 FU1 Fuse 3 15 A 250 V 5 V2 Varistor 3P380932 1 FG S800 V2 HE S100 FU1 1 S27 Connector for control PCB 2 SW1 S1W Forced cooling ope...

Страница 25: ...vice PCB 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 PCB 8 S48 Connector for sensor PCB 9 H1 H2 H3 Con...

Страница 26: ...Room temperature thermistor S49 RTH2 3P191450 1 1 S27 Connector for control PCB 2 SW2 S2W 4 Switch for upward airflow limit setting Refer to page 121 for detail Keep the other switches as factory set...

Страница 27: ...onnector for overload protector 4 S71 Connector for DC fan motor 5 S80 Connector for four way valve coil 6 S90 Connector for thermistors outdoor temperature outdoor heat exchanger discharge pipe 7 HL1...

Страница 28: ...protector 3 S70 Connector for DC fan motor 4 S80 Connector for four way valve coil 5 S90 Connector for thermistors outdoor temperature outdoor heat exchanger discharge pipe 6 HL1 HN1 S Connector for t...

Страница 29: ...oad protector 3 S70 Connector for DC fan motor 4 S80 Connector for four way valve coil 5 S90 Connector for thermistors outdoor temperature outdoor heat exchanger discharge pipe 6 HL1 HN1 S Connector f...

Страница 30: ...POWERFUL Operation 30 1 11 Clock setting 31 1 12 WEEKLY TIMER Operation FVXS Series 32 1 13 Other Functions 38 2 Thermistor Functions 39 3 Control Specification 40 3 1 Mode Hierarchy 40 3 2 Frequency...

Страница 31: ...s 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 ada...

Страница 32: ...g 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 freque...

Страница 33: ...ge flap directs airflow downward to spread the warm air to the entire room Wide Angle Louvers The louvers made of elastic synthetic resin provide a wide range of airflow that guarantees comfortable ai...

Страница 34: ...on switch Open the front panel Caution Before opening the front panel be sure to stop the operation and turn the breaker off Do not touch the aluminum fins indoor heat exchanger inside of the indoor u...

Страница 35: ...air outlets in order to reach the set temperature quickly When the room has become fully cool or when 1 hour has passed since turning on the air conditioner Air is blown only from the upper air outle...

Страница 36: ...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 temperatur...

Страница 37: ...nit 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 Roo...

Страница 38: ...emperature Tt Ts 18 30 C 64 4 86 F 2 The target temperature Tt is calculated as Tt Ts C where C is the correction value C 0 C 0 F 3 Thermostat ON OFF point and operation mode switching point are as fo...

Страница 39: ...xcept A The monitoring time has passed while the temperature difference is in the zone B Cooling 10 minutes Dry 7 5 minutes Heating 10 seconds Cooling Dry Heating FTX Series FVXS Series Refer to Tempe...

Страница 40: ...pacity does not allow the use of multiple electrical devices and air conditioners It can be easily activated by pushing ECONO button on the wireless remote controller Detail When this function is acti...

Страница 41: ...tion 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 64 4 F DRY Dry rotating speed...

Страница 42: ...the clock to 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...

Страница 43: ...am 2 program 3 program 4 ON OFF ON OFF Saturday No timer settings Sunday Make timer settings for programs 1 4 8 00 10 00 19 00 21 00 81 F 27 C 81 F 27 C 77 F 25 C ON OFF OFF ON program 1 program 2 pro...

Страница 44: ...Setting Pressing puts the sequence in reverse 5 Press 2 Press to select the desired day of the week and reservation number In case the reservation has already been set selecting blank deletes the rese...

Страница 45: ...ing 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 anoth...

Страница 46: ...to another day of the week The whole reservation of the selected day of the week will be copied The whole reservation of the selected day of the week will be copied The reservation will be copied to...

Страница 47: ...mber and press The mode is switched to setting mode Proceed to Setting mode STEP 4 is displayed on the LCD and WEEKLY TIMER operation is activated The TIMER lamp lights orange disappears from the LCD...

Страница 48: ...e deleted 3 Hold for about 5 seconds The reservation of the selected day of the week will be deleted 4 Press If there are still other reservations WEEKLY TIMER operation will be activated All reservat...

Страница 49: ...ess ON OFF button once to start operation Press once again to stop it ON OFF button is useful when the remote controller is missing or the battery has run out Forced Cooling Operation Forced cooling o...

Страница 50: ...re 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 disconne...

Страница 51: ...installation and servicing Detail Heat Pump Model Note Unless specified otherwise a dry operation command is regarded as cooling operation Air conditioner control mode Forced operation mode Forced coo...

Страница 52: ...cut freeze up protection defrost control 3 Determine lower limit frequency The maximum value is set as an lower limit frequency among the frequency lower limits of the following functions Four way val...

Страница 53: ...equency 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...

Страница 54: ...emperature 85 C 185 F OFF condition Discharge pipe temperature 2 C 35 6 F Radiation fin temperature 90 C 194 F Control B ON condition Discharge pipe temperature 10 C 50 0 F Radiation fin temperature 8...

Страница 55: ...or temperature is above C C in heating the frequency decreases depending on the outdoor temperature 3 3 4 3 Minute Standby Turning on the compressor is prohibited for 3 minutes after turning it off Th...

Страница 56: ...ng further Detail 09 class 12 15 class C F C F A 110 230 0 110 230 0 B 103 217 4 103 217 4 C 98 208 4 101 5 214 7 D 93 199 4 100 212 0 E 88 190 4 95 203 0 Zone Control Stop zone When the temperature r...

Страница 57: ...pressor is stopped 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...

Страница 58: ...at exchanger temperature The values might drop when the outdoor temperature is low to protect the compressor R22994 Reset zone Indoor heat exchanger thermistor temperature Up zone Keep zone Dropping z...

Страница 59: ...l 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...

Страница 60: ...ontrol 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 temperat...

Страница 61: ...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...

Страница 62: ...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 Discharge Pipe T...

Страница 63: ...usted so that the actual discharge pipe temperature becomes close to the target discharge pipe temperature Indirect SH superheating control using the discharge pipe temperature The electronic expansio...

Страница 64: ...rmistor 3 12 2 Detection of Overcurrent and Overload Outline An excessive output current is detected and the OL temperature is observed to protect the compressor Detail If the OL compressor head tempe...

Страница 65: ...SiUS091601E Remote Controller 54 Part 5 Remote Controller 1 FTX Series 55 2 FVXS Series 57...

Страница 66: ...ach section is shown with all its displays on for the purpose of explanation R22996 Signal transmitter To use the remote controller aim the transmitter at the indoor unit If there is anything blocking...

Страница 67: ...COMFORT 2 button Starts COMFORT AIRFLOW operation ON TIMER button Adjusts the ON TIMER setting The timer can be set 1 12 hours In indoor unit quiet operation operation sound becomes weak The airflow r...

Страница 68: ...once again to stop it Temperature adjustment buttons Displays the current settings In this illustration each section is shown with all its displays on for the purpose of explanation To use the remote...

Страница 69: ...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 Clock 5 button It changes the ON OFF TIMER and...

Страница 70: ...81 4 10 OL Activation Compressor Overload 82 4 11 Compressor Lock 84 4 12 DC Fan Lock 85 4 13 Input Overcurrent Detection 86 4 14 Four Way Valve Abnormality 87 4 15 Discharge Pipe Temperature Control...

Страница 71: ...SiUS091601E Service Diagnosis 60 5 11 Outdoor Fan System Check 109 5 12 Main Circuit Short Check 109 5 13 Power Module Check 111...

Страница 72: ...amp OFF Check the outdoor temperature Heating operation is not available when the outdoor temperature is 25 CWB 13 FWB or higher and cooling operation is not available when the outdoor temperature is...

Страница 73: ...smission error occurs between the indoor and outdoor units In either case conduct the diagnostic procedure described in the following pages FTX Series FVXS Series 2 2 Outdoor Unit The outdoor unit has...

Страница 74: ...codes 2 To return to the normal mode hold 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 code...

Страница 75: ...me 5C is displayed on the LCD 2 Select 5C service check with TEMP or TEMP button 3 Press FAN button to enter the service check mode 00 is displayed and the left side number blinks 4 Press TEMP or TEMP...

Страница 76: ...r 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 co...

Страница 77: ...ing codes 2 To return to the normal mode hold 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...

Страница 78: ...he 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 a...

Страница 79: ...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 80: ...related abnormality 75 C9 Room temperature thermistor or related abnormality 75 Outdoor Unit E1 Outdoor unit PCB abnormality 81 E5 OL activation compressor overload 82 E6 Compressor lock 84 E7 DC fan...

Страница 81: ...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 ma...

Страница 82: ...eating operation the indoor heat exchanger temperature is above about 60 C 140 F depending on the model Supposed Causes Short circuited air Clogged air filter of the indoor unit Dust accumulation on t...

Страница 83: ...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 Supp...

Страница 84: ...fan Is the rotation pulse generated Rotate the fan by hand Turn the power on again Check the fan motor for breakdown or short circuit Check the motor control voltage Check the indoor unit PCB for rota...

Страница 85: ...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 p...

Страница 86: ...posed Causes Disconnection of connector Thermistor corresponding to the error code is defective Defective indoor unit PCB Troubleshooting Check No 01 Refer to P 101 C4 Indoor heat exchanger thermistor...

Страница 87: ...the model 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 th...

Страница 88: ...YES YES Reconnect the harness Check the power supply voltage Check the connection of the compressor harness Disturbance factors Noise Power supply distortion Precaution before turning on the power ag...

Страница 89: ...rmal 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...

Страница 90: ...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 th...

Страница 91: ...connected Wrong wiring of connecting wires Wrong indoor unit PCB or outdoor unit PCB mounted Defective indoor unit PCB Defective outdoor unit PCB Troubleshooting R20435 Caution NO YES YES NO Match the...

Страница 92: ...ary 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 Bl...

Страница 93: ...wn 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...

Страница 94: ...ce 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 ma...

Страница 95: ...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 s...

Страница 96: ...Defective fan motor Defective outdoor unit PCB Troubleshooting Check No 16 Refer to P 107 R21669 Caution YES YES NO YES NO NO YES NO NO Turn on the power Rotate the fan YES Check No 16 Check the rota...

Страница 97: ...ck No 18 Refer to P 108 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...

Страница 98: ...ry A B 5 C A B 9 F Heating B A 5 C B A 9 F A Room thermistor temperature B Indoor heat exchanger temperature The same value continues If the error repeats the system is shut down Reset condition Conti...

Страница 99: ...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 mixed Stop...

Страница 100: ...or temperature thermistor Defective electronic expansion valve or coil Refrigerant shortage Defective four way valve Water mixed in refrigerant Defective stop valve Defective outdoor unit PCB Troubles...

Страница 101: ...t Error Decision Conditions The temperature sensed by the outdoor heat exchanger thermistor rise above 59 61 C 138 2 141 8 F depending on the model The error is cleared when the temperature drops belo...

Страница 102: ...or unit PCB main PCB Replace the electronic expansion valve or the coil Replace the outdoor unit PCB main PCB Change the installation location or direction Clean the outdoor heat exchanger Check the i...

Страница 103: ...oltage 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...

Страница 104: ...the position detection circuit Error Decision Conditions If the error repeats the system is shut down Reset condition Continuous run for about 11 minutes without any other error Supposed Causes Power...

Страница 105: ...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 connecte...

Страница 106: ...ower 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...

Страница 107: ...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 te...

Страница 108: ...roubleshooting Check No 17 Refer to P 108 Check No 19 Refer to P 109 A B C C F C F C F 09 class 82 179 6 65 149 70 158 12 class 90 194 75 167 81 177 8 15 class 90 194 64 147 2 81 177 8 Caution WARNING...

Страница 109: ...or unit PCB Troubleshooting Check No 17 Refer to P 108 Check No 19 Refer to P 109 Note Refer to Silicone Grease on Power Transistor Diode Bridge on page 122 for details A B C F C F 09 class 99 210 2 7...

Страница 110: ...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 sh...

Страница 111: ...the 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...

Страница 112: ...nd measure the resistance Thermistor temperature Resistance k C F Room temperature thermistor Other thermistors 20 4 73 4 197 8 15 5 57 0 148 2 10 14 44 7 112 1 5 23 35 3 85 60 0 32 28 2 65 93 5 41 22...

Страница 113: ...and stop the operation 3 Check if the Hall IC generates the rotation pulse 4 times when the fan motor is manually rotated once between the pins 1 3 Check No 02 FVXS Series 1 Check the connection of co...

Страница 114: ...or 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 disconne...

Страница 115: ...g 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 2000 S80 voltage a...

Страница 116: ...e to turn off the power Step 2 Install an inverter analyzer instead of a compressor Note Make sure the charged voltage of the built in smoothing electrolytic capacitor drops to 10 VDC or below before...

Страница 117: ...wer module Refer to Check No 22 3 If NG in Check No 22 replace the power module Replace the main PCB The power module is united with the main PCB If OK in Check No 22 check if there is any solder crac...

Страница 118: ...s 2 4 is 0 6 5 VDC 5 Keep operation off and power off Connect the connector S70 or S71 6 Check whether 4 rotation pulses 0 15 VDC are input at the pins 1 4 when the fan motor is rotated 1 turn by hand...

Страница 119: ...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 temp...

Страница 120: ...rring to the table below If the resistance is or less than 1 k short circuit occurs on the main circuit 09 class R21195 YES NO NO YES Outdoor fan system is functioning Check the outdoor fan system Rec...

Страница 121: ...SiUS091601E Check Service Diagnosis 110 12 class 15 class Multimeter R23024 R20701 1 2 3 4 Multimeter...

Страница 122: ...ion 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 r...

Страница 123: ...SiUS091601E Check Service Diagnosis 112 12 class 15 class R23025 Pin 24 Pin 23 U Pin 22 V Pin 21 W Pin 20 R20704 W V U DC_P1 DC_N1...

Страница 124: ...114 2 Forced Cooling Operation 115 3 Trial Operation 116 4 Field Settings 118 4 1 Temperature Display Switch 118 4 2 When 2 Units are Installed in 1 Room 119 4 3 Jumper and Switch Settings 121 4 4 Fac...

Страница 125: ...ail 1 Remove the valve caps from the liquid stop valve and the 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...

Страница 126: ...rt Press the forced cooling operation ON OFF button SW1 on the indoor unit for 5 seconds Command frequency 09 class 58 Hz 12 15 class 30 Hz End The forced cooling operation ends when any of the follow...

Страница 127: ...mmable 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 level 26 28 C...

Страница 128: ...r of Temp button and Mode button at the same time 3 Select T trial operation with Temp or Temp button 4 Press Mode button to start the trial operation 5 Press Mode button and select operation mode 6 T...

Страница 129: ...ure display Press TEMP and ON TIMER buttons simultaneously for 5 seconds to change the unit of temperature display You can also change the unit of temperature display by pressing TEMP and buttons simu...

Страница 130: ...ontroller at the same time 4 Select A address setting with TEMP or TEMP button 5 Press FAN button to enter the address setting mode The indoor unit operation lamp blinks for 1 minute 6 Press indoor un...

Страница 131: ...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 f...

Страница 132: ...the outdoor unit is installed where the outdoor heat exchanger of the unit is exposed to direct wind provide a windbreak wall 2 Intermittent noises may be produced by the indoor unit due to the outdo...

Страница 133: ...bridge Detail 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 diod...

Страница 134: ...SiUS091601E 123 Appendix Part 8 Appendix 1 Piping Diagrams 124 1 1 Indoor unit 124 1 2 Outdoor Unit 125 2 Wiring Diagrams 127 2 1 Indoor Unit 127 2 2 Outdoor Unit 130...

Страница 135: ...uT HEAT EXCHANGER CROSS FLOW FAN FAN MOTOR THERMISTOR ON HEAT EXCH FIELD PIPING 1 4 CuT FIELD PIPING 1 2 CuT 1 2 CuT REFRIGERANT FLOW 4D091769C INDOOR UNIT MUFFLER ASSY HEAT EXCHANGER 1 4 CuT 9 32 CuT...

Страница 136: ...TOR GAS STOP VALVE WITH SERVICE PORT FOUR WAY VALVE ON HEATING LIQUID STOP VALVE FIELD PIPING 1 4 CuT FIELD PIPING 3 8 CuT 3D100008 OUTDOOR UNIT HEAT EXCHANGER 9 32 CuT CAPILLARY TUBE 5 32 CuT 1 4 CuT...

Страница 137: ...G HEATING M PROPELLER FAN STRAINER 1 2 CuT 1 4 CuT 1 2 CuT 1 2 CuT MUFFLER 5 16 CuT 1 4 CuT MUFFLER 1 2 CuT ACCUMULATOR 5 16 CuT COMPRESSOR HEAT EXCHANGER THERMISTOR DISCHARGE PIPE THERMISTOR GAS STOP...

Страница 138: ...IPM200 S403 1 10 1 2 12 1 1 5 S200 S32 S6 PNK ORG YLW BLK BLK BLK RED ORG BLU BLU WHT RED YLW t R2T M M INDOOR M1S M1F PCB2 SIGNAL RECEIVER WIRELESS REMOTE CONTROLLER PCB1 TRANSMISSION CIRCUIT FIELD...

Страница 139: ...IPM203 BLK BLK 1 BLK 1 1 1 2 12 10 1 5 1 S200 S403 S32 S6 BLK BLK YLW BLK BLK BLU ORG RED WHT BLK BLK BLK BLK t R2T M M INDOOR M1F M1S WIRING DIAGRAM NOTE THAT OPERATION WILL RESTART AUTOMATICALLY IF...

Страница 140: ...G 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 WIRING DIAGRAM FIELD WIRING NOTE THAT OPERATIO...

Страница 141: ...Y1S V t t t U M W MS Q1L Y1E M1F M1C WIRING DIAGRAM POWER SUPPLY FU3 20A MS 3 IN CASE OF HEAT PUMP TYPE R1T OUTDOOR R2T CONDENSER R3T DISCHARGE NOTE 1 REFER TO THE NAMEPLATE FOR THE POWER REQUIREMENTS...

Страница 142: ...T Y1S t t t M Q1L MS M1C Y1E M1F WIRING DIAGRAM FIELD WIRING FU3 20A FU1 3 15A MS 3 FU2 3 15A R1T OUTDOOR R3T DISCHARGE R2T CONDENSER NOTE 1 REFER TO THE NAMEPLATE FOR THE POWER C7 DB1 FU1 FU2 FU3 FU4...

Страница 143: ...WHT YLW NOTE 1 REFER TO THE NAMEPLATE FOR THE POWER REQUIREMENTS V U W t t t MS M Y1S Q1L Y1E M1C M1F FU3 30A FU1 3 15A FU2 3 15A MS 3 R3T DISCHARGE R1T OUTDOOR R2T CONDENSER IN CASE OF HEAT PUMP TYPE...

Страница 144: ...Revision History Month Year Version Revised contents 02 2016 SiUS091601E First edition...

Страница 145: ...orized 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 u...

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