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Self-Diagnosis Function Table

1. Self-Diagnosis Function Table

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The outdoor unit maintenance remote controller can be used to check the alarm display.

The number of times that LED 1 and 2 blink on the outdoor unit control PCB can be used to check the alarm display.
(Refer to “Checking the LED 1 and 2 Alarm Display on the Outdoor Unit Control PCB.”)

Alarm code

Alarm meaning

E06

Outdoor unit failed to receive serial communication signals from indoor unit.

E12

Automatic address setting start is prohibited.

E15

Automatic address setting alarm (too few units)

E16

Automatic address setting alarm (too many units)

E20

No indoor units at automatic address setting.

E24

Outdoor unit failed to receive communications from another outdoor unit.

E25

Outdoor unit address setting failure (duplication)

E26

Mismatch in outdoor unit quantity

E29

Outdoor unit failed to receive communication from another outdoor unit.

F04

Compressor 1 discharge temperature sensor trouble

F05

Compressor 2 discharge temperature sensor trouble

F06

Gas temperature sensor trouble at outdoor heat exchanger 1

F07

Liquid temperature sensor trouble at outdoor heat exchanger 1

F08

Outdoor air temperature sensor trouble

F12

Compressor intake temperature sensor trouble

F16

High-pressure sensor trouble

F31

Outdoor unit non-volatile memory (EEPROM) trouble

F17

Low-pressure sensor trouble

F23

Gas temperature sensor trouble at outdoor heat exchanger 2

F24

Liquid temperature sensor trouble at outdoor heat exchanger 2

H03

Compressor 1 CT sensor disconnected or short-circuit

H06

Low-pressure trouble

H08

Compressor 1 oil detection sensor (connection) trouble

H13

Compressor 2 CT sensor disconnected or short-circuit

H15

Compressor 2 discharge temperature sensor disconnected

H27

H31

HIC trouble alarm

Compressor 2 lock current alarm

L04

Outdoor unit address duplication

L10

Outdoor unit capacity not set

L17

Outdoor unit model mismatch

H11

Constant speed compressor 2 overcurrent alarm

H12

Constant speed compressor 2 lock current alarm

(DISCH1)

(DISCH2)

(EXL1)

(EXG1)

(EXL2)

(EXG2)

(AIR TEMP)

(HPS)

(LPS)

(SCT)

P03

Compressor 1 discharge temperature trouble

P04

High-pressure switch activated

P05

Reverse phase (or missing phase) detected, capacity mismatch

P14

O

2

sensor is activated.

P16

Compressor 1 overcurrent

P17

Compressor 2 discharge temp trouble

P22

Fan motor trouble

P26

Inverter compressor high-frequency overcurrent alarm

P29

Inverter compressor missing phase or lock alarm

SM830202-00̲3WAY VRF.indb 4

SM830202-00̲3WAY VRF.indb 4

2012/01/30 14:53:44

2012/01/30 14:53:44

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Содержание U-72MF1U9

Страница 1: ...7MK1U6 S 07MP1U6 S 07MR1U6 S 09MD1U6 S 09MF1U6 S 09MM1U6 S 09MK1U6 S 09MP1U6 S 09MR1U6 S 12MU1U6 S 12MY1U6 S 12MD1U6 S 12MF1U6 S 12MM1U6 S 12MT1U6 S 12MK1U6 S 12MP1U6 S 12MR1U6 S 15MF1U6 S 15MM1U6 S 15MP1U6 S 15MR1U6 S 18MU1U6 S 18MY1U6 S 18MF1U6 S 18MM1U6 S 18MT1U6 S 18MK1U6 S 18MP1U6 S 18MR1U6 S 24MU1U6 S 24MF1U6 S 24MT1U6 S 24MK1U6 S 24MP1U6 S 24MR1U6 S 36MU1U6 S 36MF1U6 S 36ME1U6 S 48MF1U6 S 4...

Страница 2: ...source it can cause the generation of poisonous gas IMPORTANT For safe installation and trouble free operation you must Pay close attention to all warning and caution notices given in this manual This symbol refers to a hazard or unsafe practice which can result in severe personal injury or death WARNING CAUTION If Necessary Get Help These instructions are all you need for most installation sites ...

Страница 3: ...serva tion by curtailing heat and carrying power etc Most importantly the multi air conditioner system is able to replenish a large amount of refrigerant compared to conventional individual air conditioners If a single unit of the multi air conditioner system is to be installed in a small room select a suitable model and installation pro cedure so that if the refrigerant accidentally leaks out its...

Страница 4: ...mer Remote Controller 2 15 Section 3 TROUBLE DIAGNOSIS 3 1 1 Contents of Remote Controller Switch Alarm Display 3 2 2 Outdoor Unit Control PCB LED Display 3 4 3 W 3WAY VRF Alarm Codes 3 5 4 Blinking Inspection Display on the Remote Controller 3 26 Section 4 PCB AND FUNCTIONS 4 1 1 Outdoor Unit Control PCB 4 2 2 Indoor Unit Control PCB 4 7 Section 5 SELF DIAGNOSIS FUNCTION TABLE 5 1 1 Self Diagnosi...

Страница 5: ...Test Run 1 2 1 2 Test Run Procedure 1 3 2 Setting of Unit Control PCB 1 4 2 1 Main Outdoor Unit PCB Setting 1 4 3 Auto Address Setting 1 6 3 1 Auto Address Setting 1 6 4 Remote Controller Test Run Settings 1 12 5 Caution for Pump Down 1 13 6 Meaning of Alarm Messages 1 14 TENTATIVE ...

Страница 6: ...sor The bottom of the compressor should be warm to the touch and the crank case heater around the feet of the compressor should be hot to the touch 6 Both the gas and liquid tube service valves are open If not open them now 7 Request that the customer be present for the trial run Explain the contents of the instruction manual then have the customer actually operate the system 8 Be sure to give the...

Страница 7: ...main unit PCBs except for 1 Alternatively move the sockets to the OPEN side Outdoor unit control PCB Unit No setting switch S007 Outdoor unit control PCB Unit No setting switch S006 Outdoor unit control PCB Unit No setting switch S004 and S005 Outdoor unit control PCB Unit No setting switch S002 and S003 Check the link wiring 1 The unit with the unit No set to 1 is the main unit All other units ar...

Страница 8: ...1 4 Test Run 1 2 3 4 5 6 7 2 Setting of Unit Control PCB 2 1 Main Outdoor Unit PCB Setting S003 CN100 CN101 CN003 S002 S004 S005 S006 S007 ...

Страница 9: ...ue Address setting of outdoor unit S007 3P DIP switch blue 1 unit factory setting 1 ON 2 units 2 ON 3 units 1 2 ON Unit No setting Address setting of outdoor unit S007 3P DIP switch blue Unit No 2 sub unit factory setting Unit No 3 sub unit 2 ON 1 2 ON 1 ON 2 ON 3 ON 1 3 ON Set to 1 Set to 1 Set to 1 Set to 1 Set to 0 Set to 1 Set to 1 Set to 1 Set to 0 40 units System 11 System 21 System 30 Both ...

Страница 10: ... the No 2 sub unit control PCB set the unit No switch S007 to 3 2 1 ON unit No 2 On the No 3 sub unit control PCB set the unit No switch S007 to ON 1 2 3 unit No 3 3 On the outdoor main unit control PCB check that the system address rotary switch S002 is set to 1 and that the DIP switch S003 is set to ON ON OFF 1 2 0 These are the settings at the time of factory shipment 4 To set the number of ind...

Страница 11: ...Remote controller Indoor unit Remote controller Outdoor main sub control wiring Outdoor main sub control wiring Inter unit control wiring Inter unit control wiring Remote controller communication wiring Remote controller cross over wiring S007 No 2 sub unit settings S007 No 3 sub unit S007 S006 S007 S005 S004 S003 S002 No 1 main unit settings System address system 1 setting System address system 2...

Страница 12: ... to 13 on the outdoor main unit control PCB set the No of indoor units DIP switch S005 to 1 ON OFF 2 3 ON 1 and set the rotary switch S004 to 3 5 Turn on power to all indoor and outdoor units in the system 6 Short circuit the automatic address pin at the outdoor main unit CN100 for 1 second or longer then release it Communication for automatic address setting begins To cancel again short circuit t...

Страница 13: ...formed for more than one system at the same time Communication for automatic address setting begins the compressors turn ON and automatic address setting in Heating mode begins All indoor units operate To cancel again short circuit the automatic address pin CN100 for 1 second or longer then release it The LED that indicates automatic address setting is in progress turns OFF and the process is stop...

Страница 14: ...ss setting is in progress turns OFF and the process is stopped Be sure to perform automatic address setting again Automatic address setting is completed when the compressors stop and LED 1 and 2 on the outdoor main unit control PCB turn OFF 7 At the outdoor main unit in the next different system short circuit the automatic address pin CN100 for 1 second or longer then release it Repeat the same st...

Страница 15: ... meaning After the power is turned ON and automatic address setting is not in progress no communication with the indoor units in that system is possible After the power is turned ON and automatic address setting is not in progress 1 or more indoor units are confirmed in that system however the number of indoor units does not match the number that was set Automatic address setting is in progress Al...

Страница 16: ...address is displayed for 1 of the indoor units which is connected to the remote controller Check that the fan of that indoor unit starts and that air is discharged 5 Press the button again and check the address of each indoor unit in sequence 6 Press the button again to return to normal remote controller mode 4 Remote Controller Test Run Settings 1 Press the remote controller button for 4 seconds ...

Страница 17: ...nit Pump down is used when the unit is to be moved or before servicing the refrigerant circuit This outdoor unit cannot collect more than the rated refrigerant amount as shown by the nameplate on the back If the amount of refrigerant is more than that recommended do not conduct pump down In this case use another refrigerant collecting system CAUTION ...

Страница 18: ...munication signal Auto address is not completed Error in transmitting serial communication signal Group wiring failure of indoor units in the refrigerant system occurring when remote controller is operated immediately after automatic address setting Indoor unit address setting is duplicated Error of main indoor unit in receiving serial communication signal from sub indoor units Duplicated remote c...

Страница 19: ...ed Indoor coil temp sensor E1 F01 Indoor coil temp sensor E3 F03 Indoor suction air room temp sensor TA F10 Indoor discharge air temp sensor BL F11 Outdoor thermistor is either open or damaged Comp No 1 INV discharge gas temp sensor DISCH1 F04 Comp No 2 constant speed discharge gas temp sensor DISCH2 F05 Outdoor No 1 coil gas temp sensor EXG1 F06 Outdoor No 1 coil liquid temp sensor EXL1 F07 Outdo...

Страница 20: ... or main outdoor unit is not operating correctly Mis wiring of control wiring between indoor unit main outdoor unit and system controller CN1 is not connected properly C06 Activation of protective device Protective device of sub indoor unit in group control is activated When using wireless remote controller or system controller in order to check the alarm message in detail connect wired remote con...

Страница 21: ... Use the Timer Remote Controller 2 15 3 2 Names and Operations 2 16 3 3 Installation Manual for Timer Remote Controller 2 18 3 4 How to Install the Remote Controller 2 18 3 5 Group Control Using 2 Remote Controllers 2 19 3 6 Remote Controller Setting Mode 2 19 3 7 Indoor Unit Setting Mode 2 19 3 8 To Display the Sensor Temperature 2 19 3 9 To Display the Trouble History 2 19 3 10 Setting the Prese...

Страница 22: ...ensor and the temperature at the bottom of the room Value set for intake shift temperature at time of shipment 7 F NOTE The shift temperature can be selected in the range of 0 18 F by using the remote controller simplified setting mode Cooling Room temperature Set temperature 2 2 4 deg T Thermostat ON ON OFF Heating Room temperature Set temperature 4 2 2 deg T Thermostat ON ON OFF 1 After the ther...

Страница 23: ...ing mode changes heating cooling cooling heating which occur during operation as a result of temperature changes are handled as shown below Heating cooling Room temperature Shifted set temperature set temperature 4 F 1 F Cooling heating Room temperature Shifted set temperature set temperature 4 F 2 F Example Temperature set on the remote controller is 68 F Operating mode change Shifted set temp 1 ...

Страница 24: ...er on and off B Transmitter When you press the buttons on the wireless remote control unit the mark appears in the display to transmit the setting changes to the receiver in the air conditioner C MODE button Use this button to select one of the following five operating modes AUTO Used to automatically set cooling or heating operation Only for single heat pump type Temperature range 62 80 F HEAT Us...

Страница 25: ...ormat or any other such format since they will all operate at the same time NOTE When the batteries are replaced the address setting returns to ALL so you must make the setting again H A C SENSOR button When you press this button use a narrow tipped object such as a ballpoint pen the indication will disappear on the display The room temperature is detected by the sensor which is built into the ind...

Страница 26: ...shows while the ventilation fan is running If the VENTILATION button is held down for 4 or more seconds when the batteries have been replaced appears on the display and the ventilation fan can be used O Remote control sensor This detects the temperature around the remote control unit when the remote control unit position has been selected using the sensor button P ACL button ALL CLEAR Puts the wir...

Страница 27: ...n order to prevent the sending of signals to the wrong indoor unit when a multiple number of indoor units that can be operated by the wireless remote control units have been installed in the same room G SWING button When this button is pressed the airflow sweeps up and down automatically H FILTER lamp This lamp lights to indicate that it is time to clean the filter If two beeps are heard the opera...

Страница 28: ...s connected the UNIT button is used first to select a unit Then use the FLAP button to set the airflow direction to a specific angle or to sweep STEP 6 To stop the air conditioner Press the operation button ON OFF button again Automatic heating and cooling The air conditioner automatically performs heating and cooling operation based on the difference between the temperature setting and room tempe...

Страница 29: ...ttery is used Remove the batteries if the wireless remote control unit is not going to be used for a prolonged period Dispose of the used batteries at the designated location How to use the wireless remote control unit Point the wireless remote control unit s transmitter at the signal receiver If the signal is received properly a beep is heard Two beeps are heard only when operation starts up Sign...

Страница 30: ...oor unit and the number used for the address of its wireless remote control unit The indoor units cannot be controlled separately when they are used in a flexible combination format simultaneous operation of multi units format or any other such format since they will all operate at the same time The signal receiver has an address switch for signal reception and the wireless remote control unit has...

Страница 31: ...ration area may be set to any position For positions 1 2 and 3 set the knob to the left conversely for 4 5 and 6 set the knob to the right K type Position of address switch inside indoor unit The address switch in the operation area may be set to any position For positions 1 2 and 3 set the knob upward 1 conversely for 4 5 and 6 set the knob downward ON U D types Position of address switch in sign...

Страница 32: ...ithout fail If it is kept at the OFF setting the signals from the wireless remote control unit will not be accepted Operation Press the Emergency operation button The air conditioner initiates a cooling operation when its operation is started up at a room temperature of 75 F or above Conversely it initiates a heating operation when its operation is started up at a room temperature below 75 F Shutd...

Страница 33: ...he air conditioner initiates a cooling operation when its operation is started up at a room temperature of 75 F or above Conversely it initiates a heating operation when its operation is started up at a room temperature below 75 F 2 When the SWING button is pressed the air direction is automatically switched from upward to downward or vice versa Shutdown Press the Emergency operation button once m...

Страница 34: ...emote control unit s batteries run down If they have replace them with new ones Do the indication lamps show a cooling heating mismatch or is the auto cooling heating function not available Change the operation mode Auto cooling heating or heating appears on the display even though the air conditioner is a cooling only model Change the setting of the wireless remote control unit s slide switch See...

Страница 35: ...tions 3 Timer Remote Controller 1 2 3 4 5 6 7 3 1 How to Use the Timer Remote Controller 15 14 16 17 23 25 27 29 26 28 30 18 21 22 20 24 12 1 2 5 7 3 8 6 9 31 10 4 11 13 Operating buttons Display 8 10 9 13 11 12 1 3 4 7 2 5 6 ...

Страница 36: ...sign When is displayed press this button after cleaning the filter Operation Section Refer to the previous page 10 Ventilation button Use this button when you installed a fan available in the market Pressing this button turns on and off the fan When turning off the air conditioner the fan will be also turned off While the fan is operating will appear in the display If is displayed on the LCD of th...

Страница 37: ...e timer program is being set 2 UNIT indication Indicates the unit No of the indoor unit which is selected with the Unit Select button or the unit in which an abnor mality occurs 3 TIMER No indication Appears when the time program is being set 4 Timer program The indoor unit starts operation at the programmed time The indoor unit stops operation at the programmed time 5 Today s day of the week Indi...

Страница 38: ...ndoor unit sides Fig 2 1 Otherwise misoperation due to noise may occur The mounting position for the remote controller should be located in an accessible place for control Never cover the remote controller or recess it into the wall 1 When you open the decorative cover Fig 2 4 you will see 2 gaps under the remote controller Insert a coin into these gaps and pry off the back case 2 Attach the back ...

Страница 39: ...m temperature sensor Main unit RCU CODE ITEM DATA ITEM Vent button Yes No Temperature unit o F o C 3 6 Remote Controller Setting Mode To set the remote controller main sub setting or change the sensor follow the steps below Press both and buttons on the remote controller for more than 4 seconds together Select CODE No with buttons Change DATA with TIMER buttons Press Finally press DATA is memorize...

Страница 40: ...1 3 4 3 5 16 4 9 16 Caution when installing the remote controller 1 Install the remote controller more than 3 3 8 apart from the wall surface 2 To install the remote controllers side by side keep the space between each for more than 4 59 64 3 To install the remote controllers one above the other keep the space between each for more than 1 unit in Fig 2 5 Fig 2 4 ...

Страница 41: ...t hour in the range of 0 to 23 2 Set the present hour and press The hour digits light up and the minute digits start flashing 2 If the clock uses the 12 hours AM PM setting the hour is displayed in the range of AM 0 to 11 PM 0 to 11 4 Press to change the present minute in the range of 0 to 59 Set the present minute and press The day and time are set and finishes the setting mode NOTE The unit retu...

Страница 42: ... the TIMER No returns to 1 1 Press to enter the program confirmation mode and start setting Once you enter the program confirmation mode the present day is indicated as TIMER No 1 2 Select the day Press and to move the horizon tally on the day to select Press to move flashing on the display in the order of Su Mo Tu Press to move it in the order of Su Sa Fr is displayed when the program is not set ...

Страница 43: ... the hour program step 1 Press to set the hour Confirm the hour and press The enters the pro gram changing mode setting of the minute 3 Set the minute program step 2 Press to set the minute Confirm the minute and press The unit enters the program pattern selection mode 1 2 3 4 4 2 3 4 Program step1 Program step2 SET SET SET SET CANCEL DEL normal remote controller program check PROGRAM CANCEL CANCE...

Страница 44: ...and changes the temperature settings Press to change the temperature setting Pattern 4 The indoor unit changes the temperature setting at the programmed time Press to change the temperature setting Pattern 1 Pattern 2 Pattern 3 Pattern 4 Select the program pattern and press The program timer setting is confirmed and the unit enters the confirmation mode NOTE If you press during the setting it retu...

Страница 45: ...mal mode Invalidating Program Timer If you want to adjourn the program operation for more than 1 week you can invalidate all the timer settings Once the timer settings are invalidated the program will not be operated until the invalidation is cancelled How to invalidate the program timer Press and hold for more than 2 seconds is displayed and the programs will be invalidated from the next one How ...

Страница 46: ...day of the copy source Then press to complete copying and return to the program checking mode NOTE The program will be overwritten if the preprogrammed day is selected as a copy source Before Asking Repair Work Before asking repair work please check the followings Trouble Possible Cause Remedy ERROR is displayed when the minute digits are entered If there is another TIMER No which has the program ...

Страница 47: ...er limit For Example Setting at Outing Temperature 86 F Precautions The outing control only starts stops the air conditioner It does not change the operation mode temperature setting Therefore the operation mode temperature needs to be set beforehand so that the outing function turns on the air condition er with your desired operation mode temperature setting If the room temperature rapidly change...

Страница 48: ...no operation made for 3 minutes during the setting In this case all the settings in progress will be lost Canceling the outing function Press and hold for more than 2 seconds while the outing function is set Setting the Outing Function Outing function indication Outing function indication Status Off The outing function is not set Flashing The outing function is now being set or under operation Lig...

Страница 49: ...er 1 Press Each time the button is pressed the indication changes in the following order Press to stop the time setting 2 Press The sleeping operation starts When the off time comes The indoor unit stops The temperature returns to the setting at the time when sleeping function operation started To cancel the sleeping function operation Press The temperature setting remains at the time cancelled Th...

Страница 50: ... COOL or FAN operation modes NOTE The outdoor units will not operate for approximately 3 minutes after the power is turned ON and after operation is stopped If correct operation is not possible an error code is displayed on the remote controller LCD display Refer to Table of Self Diagnostic Functions and correct the problem 4 After the test run is completed press the button again Check that TEST d...

Страница 51: ... group control item code and settings data are displayed blinking on the remote controller LCD display At this time the indoor unit fan or all indoor unit fans in the case of group control begins operating If group control is in effect press the button and select the address unit No of the indoor unit to set At this time the fan at the indoor unit begins operating If unit No is displayed the same ...

Страница 52: ... speed when heating thermostat is OFF 0006 LO MED 0000 No shift 0001 0002 0003 0004 0005 Heating intake temperature shift 0006 0000 No heater Electric heater installation 0001 Heater installed 0000 No setting at time of shipping Hu Change to remote controller sensor thermostat differential Mode dependency midifying when heater thermostat is OFF 0001 Yes 0000 Thermostat OFF differential 2 F setting...

Страница 53: ...ons simultaneously for 4 seconds or longer unit No or in the case of group control item code and settings data are displayed blinking on the remote controller LCD display At this time the indoor unit fan or all indoor unit fans in the case of group control begins operat ing If group control is in effect press the button and select the address unit No of the indoor unit to set At this time the fan ...

Страница 54: ... Function disabled 0001 Stops automatically 5 minutes after operation starts 0002 Stops automatically 10 minutes after operation starts 0123 Stops automatically 615 minutes after operation starts 0124 Stops automatically 620 minutes after operation starts Automatic stop time after operation start Can be set in 5 minute units 0125 Stops automatically 625 minutes after operation starts Slim Conceale...

Страница 55: ...0 009 0007 0003 0001 0002 0030 0029 0018 0019 0030 0029 0016 0017 0030 0029 0018 0019 0027 0026 0017 0018 0001 0000 0000 0001 0002 0002 0000 5 minutes 4 minutes Normal None Ignore heat exchanger temperature conditions Filter input differential pressure switch input Alarm input for trouble input about air cleaner or similar device Humidifier input Operates linked with drain pump when humidifier is ...

Страница 56: ...re for cold air discharge Heat exchanger control point for control to prevent cold air 0026 0000 Output linked with fan ON when indoor unit fan is operating Fan output switching 0001 Fan mode operation output 0000 No delayed start 0001 1 sec delayed start 0002 2 sec delayed start 0058 58 sec delayed start 0059 59 sec delayed start Drain pump delayed start time 0060 60 sec delayed start 0000 Humidi...

Страница 57: ...egenerative deodorizing filter deodorant activated charcoal filter 0003 For air blocking material For 3 way discharge when discharge duct is connected Fan tap setting Fan tap change in order to prevent drop in air discharge caused by filter installation 0006 For air blocking material For 2 way discharge 0000 No humidifier output 0001 1 sec 0002 2 sec 0058 58 sec 0059 59 sec Humidifier ON time ON t...

Страница 58: ... No Remote controller setting data Purpose of use names of accessories 0000 1 0001 3 0003 6 0006 Standard setting at time of shipping High ceiling setting 1 for standards panel Super long life filter Oil guard panel Oil guard panel with raising lowering grille Ammonia deodorant filter Optical regeneration deodorant filter High ceiling setting 2 for standards panel Ceiling panel with special raisin...

Страница 59: ...mper connector 2P yellow which was supplied with the accessory to the correct connector pin on the indoor unit control PCB according to the setting number which was confirmed in Table 2 Table of DC Fan Motor Tap Settings If the setting No is 1 then connect the jumper connector to the connector pin TP1 2P red on the indoor unit control PCB If the setting No is 3 then connect the jumper connector to...

Страница 60: ...al control address and other settings Detailed settings System address indoor unit address central control address and other settings Press and hold the and buttons for 4 seconds or longer Press the button When settings are made from a remote controller the indoor unit where that remote controller is connected stops Automatic address Automatic address setting based on command from the wired remote...

Страница 61: ... 6 7 2 1 4 3 Test Run Function Operates the unit with the thermostat forced ON Procedure Press and hold the button for 4 seconds or longer Test appears on the remote controller LCD display Start operation Press the button to return to normal remote controller display ...

Страница 62: ... unit is operating or stopped The procedure below displays the sensor tempera tures from the remote controller indoor unit and out door unit on the remote controller Procedure Press and hold the and buttons simultaneously for 4 seconds or longer The unit No X X main unit No item code XX sensor address and servicing monitor XX sensor temperature are displayed on the remote controller LCD display Pr...

Страница 63: ...1 2 3 4 5 6 7 1 Contents of Remote Controller Switch Alarm Display 3 2 2 Outdoor Unit Control PCB LED Display 3 4 3 W 3WAY VRF Alarm Codes 3 5 4 Blinking Inspection Display on the Remote Controller 3 26 3 TROUBLE DIAGNOSIS TENTATIVE ...

Страница 64: ...curring when remote controller is operated immediately after automatic address setting Indoor unit address setting is duplicated Error of main indoor unit in receiving serial communication signal from sub indoor units Duplicated remote controller main setting Starting auto address setting is prohibited AP pin CN102 is shorted while the auto address setting started Number of connected indoor units ...

Страница 65: ...d Float switch is activated Thermal protector in indoor unit fan motor is activated P03 Compressor 1 INV discharge temp trouble P04 F04 F05 F12 F16 F17 F24 F23 F08 F07 F06 High pressure switch or Overload Protector OLR Compressor 1 INV discharge temp sensor Compressor 2 constant speed discharge temp sensor Outdoor air temp sensor Heat exchanger 1 liquid temp sensor Heat exchanger 1 gas temp sensor...

Страница 66: ...ss setting was completed successfully After the power is turned ON and automatic address setting is not in progress the number of detected indoor units connected to that system matches the number that was set and regular communications are occurring Both OFF Automatic address setting is in progress Blinking alternately At time of automatic address setting the number of indoor units did not match t...

Страница 67: ...r 2 lock current alarm 3 10 3 10 3 11 3 11 3 11 3 9 3 13 3 10 3 10 Compressor 2 discharge temperature sensor trouble Gas temperature sensor trouble at outdoor heat exchanger 1 In Liquid temperature sensor trouble at outdoor heat exchanger 1 Out Outdoor air temperature sensor trouble Compressor intake temperature sensor trouble High pressure sensor trouble Low pressure sensor trouble Gas temperatur...

Страница 68: ...few when automatic address setting was performed Probable cause 1 The number of indoor units set at the indoor unit quantity setting SW No of I U S004 S005 on the outdoor unit PCB is too many 2 The inter unit control wiring between indoor units has been cut Check 1 Refer to the test run servicing materials and check the indoor unit quantity setting SW No of I U S004 S005 2 Check the inter unit con...

Страница 69: ...ss setting was performed no indoor units were recognized Probable cause 1 The inter unit control wiring from the outdoor unit to the indoor units has been cut 2 Serial connector OC CN001 is disconnected at the outdoor unit 3 The power is OFF at all indoor units in the system Check 1 Check whether the inter unit control wiring from the outdoor unit to the indoor units is cut 2 Check whether serial ...

Страница 70: ...ng is cut Check 1 Check the outdoor unit quantity setting again 2 Check the outdoor unit main sub control wiring Correction 1 Correct the incorrect outdoor unit quantity setting 2 Repair the outdoor unit main sub control wiring Example Notes Recovery from this alarm occurs automatically when the set outdoor unit quantity matches the number of outdoor units detected on the outdoor unit main sub con...

Страница 71: ...fluctuates suddenly and wildly In some cases the precise temperature may not be known even when monitoring software is used Check Wiggle the sensor and check whether the trouble continues Check whether the connector is partially disconnected from the PCB An F04 alarm will not result if the connector is completely disconnected circuit is open If the cause is still uncertain check the following to d...

Страница 72: ...sor resistance Check that the sensor is operating normally 2 Use a remote controller monitor or PC monitor to check the temperature that is recognized by the microcomputer Correction Example Notes 3 Leakage from the discharge tube check valve Trouble Although the other compressor is operating and this compressor is stopped the discharge temperature of this compressor rises together with the temper...

Страница 73: ...ly 2 Use a remote controller monitor or PC monitor to check the temperature that is recognized by the microcomputer Correction Example Notes F16 Alarm Alarm code F16 Alarm meaning High pressure sensor trouble abnormal rise in high pressure In some cases this may not be the result of a high pressure sensor malfunction Alarm conditions High pressure SW activated although the detected pressure was lo...

Страница 74: ...sure sensor failure Failure to open the service valve clogged tubing valve leakage over charging in all of these cases an alarm occurs when there are rapid pressure fluctuations and tracking of the detected pressure is poor Outdoor unit PCB failure Check the sensor resistance value Use a tester and measure the resistance between sensor No 1 and No 3 Resistance of less than 10k indicates a short ci...

Страница 75: ...onnected 6 Noise Check 1 CT circuit failure PCB failure Trouble Current value during compressor operation is below the threshold value Check Check that the connector is not disconnected Check the continuity of the CT circuit Install a normal CT in place of this CT and check If current is detected then the PCB can be judged OK CT circuit failure Check that current is flowing in the phase where the ...

Страница 76: ... circuit A lower high pressure level results in a smaller difference between low pressure and high pressure that may be insufficient to cause refrigerant flow 3 The refrigerant circuit has become closed and refrigerant has not returned to the compressor In some cases when moisture enters the refrigerant circuit it can freeze at the low pressure locations and the resulting ice can block the circuit...

Страница 77: ...it with the oil sensor connection at compressor 2 This alarm occurs when a connector connection pins 1 and 2 for compressor 1 pins 4 and 5 for compressor 2 and pins 7 and 8 for compressor 3 is open Alarm conditions Probable cause Disconnected connector Check Check that the connector is securely connected Correction 1 2 Example Notes Connect the connector Correct the connection at connector pins 4 ...

Страница 78: ... check that the current value for all phases is not high If MG was forced ON use caution check that compressor noise will not occur or the compressor will not run with a groaning sound 3 Missing power phase Trouble Check This alarm primarily occurs when the T phase is missing When the R phase or S phase is missing CT trouble or PCB continuity trouble occur However this may not be true in case of m...

Страница 79: ...after start Probable cause 1 Discharge sensor temperature detector is not inserted into the tube s sensor holder 2 Discharge sensor itself has suffered some kind of malfunction other than a cut wire Check 1 Check that the discharge temperature sensor is inserted into the sensor holder 2 Check that sufficient heat conducting putty is applied 3 Remove the discharge sensor from the sensor holder and ...

Страница 80: ...rigerant circuit clogging or valve leakage at the stopped outdoor unit 5 A valve ORVR BALV BPB in the oil circuit has malfunctioned or there is clogging of the circuit capillaries which returns oil from the oil separator to the compressor 6 If an excessive amount or liquid returns to the compressor oil foaming may increase oil discharge The same occurs when the refrigerant proportion in the compre...

Страница 81: ...failure is found replace the PCB Example Notes Turn OFF the power and check the continuity of HIC and HIC on the HIC PCB L04 Alarm Alarm code L04 Alarm meaning Outdoor unit refrigerant system address duplication Alarm conditions Communication by inter unit control wiring was received that contained the same address as that unit 5 times or more within 3 minutes Probable cause Incorrect outdoor syst...

Страница 82: ...reset both the indoor and outdoor power Example Notes The outdoor unit maintenance remote controller is required in order to set the capacity in the outdoor unit EEPROM L17 Alarm Alarm code L17 Alarm meaning Outdoor unit model mismatch Alarm conditions This alarm occurs when a unit other than a R410A refrigerant model is connected Probable cause 1 A unit that uses R407C refrigerant or a R22 model ...

Страница 83: ... poor Check Check that there is no difference in the condensation or frost conditions between the strainer primary side and secondary side tubing 5 Crossed thermistor Trouble The discharge temperature of the other compressor is high although only this compressor is operating When the liquid valve turns ON the discharge temperature of the other compressor decreases Trouble System is OK when all out...

Страница 84: ...r 2 Replace the outdoor unit PCB 3 Correct the problem locations Example All of the probable causes Notes Operates continuously for a set length of time Indicates 2 5 minutes or longer for an inverter compressor compressor 1 and 30 seconds or longer for a constant speed compressor compressor 2 ...

Страница 85: ...door heat exchanger has not become clogged or blocked Remove any objects that impede the flow of air 4 If the operation is cooling operation check that an air short circuit has not occurred at the outdoor unit The status is OK as long as the temperature in the area around the outdoor unit does not become abnormally high during operation 5 If the operation is cooling operation check that the outdoo...

Страница 86: ...r 1 INV overcurrent alarm Alarm conditions This alarm occurs when current trouble or current detection trouble occurs at an inverter frequency of less than 80 Hz after start when trouble judgment current is detected in the primary or secondary current or when an instantaneous secondary current of 48 A or higher is detected Probable cause There is a strong possibility of a compressor failure An ala...

Страница 87: ...imary or secondary current or when an instantaneous secondary current of 48 A or higher is detected Probable cause The detection methods are the same as for P16 However the fact that operation up to high frequencies is possible does not necessarily mean that a compressor failure is the cause of the trouble Start the compressor several times If alarm P26 occurs every time and alarm P16 does not occ...

Страница 88: ...occurred check the alarm history then refer to the corresponding items Correction Follow the instructions in the corresponding items to correct the trouble Recovery After repairing the malfunctioning locations reset the power for the system all outdoor units Caution Automatic backup mode will not be canceled until the power is reset Notes Automatic backup mode is not engaged in cases of alarms oth...

Страница 89: ...condary side contacts remain together The conditions of magnet SW operation are poor difficult to open When a magnet SW is used in a DC circuit it may be difficult for the SW to open at times In an AC circuit the magnet SW should open instantaneously as long as the current is within the allowable range However this kind of trouble can occur if excessive current flows and may prevent the SW from op...

Страница 90: ...3 28 MEMO 1 2 3 4 5 6 7 ...

Страница 91: ... 2 1 AC Fan Motor for CR U 07MF1U6 4 8 2 2 DC Fan Motor for CR U 07MM1U6 4 8 2 3 XM Type for CR S 12MY1U6 POW XM075XH 4 9 2 4 CR1 for CR KR74GXH56A S 07MK1U6 S 12MK1U6 Wall Mounted 4 10 2 5 CR1 for CR KR254GXH56A S 18MK1U6 S 24MK1U6 Wall Mounted 4 11 2 6 CR2 for POW KH2672R S 07MK1U6 S 24MK1U6 Wall Mounted 4 12 2 7 Explanation of Functions 4 13 2 8 Explanation of Functions CR KXRP56AN CR KXRP80AN ...

Страница 92: ...fuse F003 OC CN001 plug Low pressure sensor RC CN006 plug High pressure sensor RC1 CN106 plug Outdoor air temp Comp discharge 3 temp Gas temp sensor at heat exchanger 1 2 Comp discharge 2 temp Comp discharge 1 temp Liquid temp sensor at heat exchanger 1 2 CT2 CT3 Gas temp and Liquid temp sensor at heat exchanger 3 CTL1 CTL2 Oil detection sensor Suction temp HIC2 HIC1 HIC3 Power LED D53 EEPROM memo...

Страница 93: ...4 3 PCB and Functions 1 Outdoor Unit Control PCB 1 2 3 4 5 6 7 1 2 Outdoor Unit Filter PCB FIL CHDX14053 1 3 Outdoor Unit HIC Board HIC CHDX14053 ...

Страница 94: ...ches for setting system address 10s digit and 20s digit If 10 systems or more are set the setting is made by a combination of this DIP switch and S002 If 10 19 systems are set set switch 1 10s digit to ON If 20 29 systems are set set switch 2 20s digit to ON and set switch 1 10s digit to OFF If 30 systems are set set both switch 1 10s digit and switch 2 20s digit to ON For details concerning S002 ...

Страница 95: ... Stop CN104 2P plug white Stop pin Short circuit this pin and apply a pulse signal to stop all indoor units in that refrigerant system AP CN102 2P plug white Vacuuming pin To perform vacuuming of the outdoor unit short circuit this pin and then turn the power ON All solenoid valves turn ON and vacuuming begins smoothly Do not perform automatic address setting at this time Release the short circuit...

Страница 96: ...26 27 28 29 0 1 2 3 4 5 6 7 8 9 OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF ON ON ON ON ON ON ON ON ON ON 30 0 ON ON Table 2 Setting the Number of Indoor Units S004 Rotary switch red S005 2P DIP blue Number of Indoor Units S004 Setting S005 Setting 1 2 3 1 1 OFF OFF OFF 2 2 OFF OFF OFF 3 3 OFF OFF OFF 9 9 OFF OFF OFF 10 0 ON OFF OFF 11 1 ON OFF OFF 19 9 ON OFF OFF 20 0 OFF ON OFF 21 1 OFF ON OFF 29 9 ...

Страница 97: ...ired remote con troller is used to operate a commercially available ventilation fan Refer to the remote control section Use a ventilation fan which can accept no voltage A contact as the external input signal FILTER 2P white This terminal is used to connect contact input from the differential pressure switch which detects filter clogging When the contacts turn ON FILTER is displayed on the wired r...

Страница 98: ...RISTOR VA100 EEPROM IC010 OPTION CN060 CHK CN062 JP001 FILTER CN070 EXCT CN073 FAN DRIVE HEATER CN032 CN304 POWER LED D002 DISP CN063 T10 CN061 GRL CN020 VARISTOR VA100 EMG CN044 OC CN040 Some models do not correspond to target products depending on the year of production Some models do not correspond to target products depending on the year of production 2 1 AC Fan Motor for CR S 07MF1U6 2 2 DC F...

Страница 99: ... POW XM075XH TEST CN064 JP001 D002 EEPROM memory IC CHK CN062 DISP CN063 FILTER CN070 HEATER CN340 OPTION CN060 EXCT CN073 FAN DRIVE CN032 EMG CN044 T10 CN061 JP003 OC CN040 Some models do not correspond to target products depending on the year of production POW XM075XH CR XMHX1252 POWER LED ...

Страница 100: ...nd correct it Then change the socket from the OC plug to the EMG plug OC plug Control circuit fuse F002 Power LED LD002 Microcomputer Nonvolatile memory IC Indoor heat exchanger E2 sensor Indoor heat exchanger E1 sensor JP001 Room temperature TA sensor OPTION plug T10 plug FAN DRIVE plug EXCT plug 2 4 CR1 for CR KR74GXH56A S 07MK1U6 S 12MK1U6 Wall Mounted ...

Страница 101: ...G plug If the fuse F002 has blown determine the cause and correct it Then change the socket from the OC plug to the EMG plug OC plug Control circuit fuse F002 Power LED LD002 Microcomputer Nonvolatile memory IC Indoor heat exchanger E2 sensor Indoor heat exchanger E1 sensor JP001 Room temperature TA sensor OPTION plug T10 plug FAN DRIVE plug EXCT plug RC plug ...

Страница 102: ...rol PCB 1 2 3 4 5 6 7 2 6 CR2 for POW KH2672R S 07MK1U6 S 24MK1U6 Wall Mounted T20 plug Control circuit fuse F201 TRANS S plug CN202 Control circuit fuse F202 Some models do not correspond to target products depending on the year of production ...

Страница 103: ...3 4 5 6 COM COM T10 yellow 12V 300msec or more 12 ON ON OFF Unit condition 4 5 output 1 2 pulse input NOTE The wire length from indoor unit to the Relay must be within 6 5ft Pulse signal changeable to static with JP cutting Refer to JP001 z T10 CN061 Forced OFF control Need to set EEPROM data at Code 2E to 0001 Refer to Page 2 35 Detailed Setting Function This is a method to control the indoor uni...

Страница 104: ...e checked However this test operation stops if the indoor unit protection mechanism is activated The unit can be operated even if the remote controller and outdoor unit are not connected However even if the remote controller cannot be connected it cannot be used to operate the unit This function can be used for short term tests JP001 Jumper wire Allows selection of the T10 terminal start stop sign...

Страница 105: ...tputs external signals as shown in the figure below OPTION white Indoor unit control PCB CR1 DC 12V Relay DC 12V field supply Note Fan signal Heat start signal Cool start signal Thermostat signal Defrost signal NOTE The relay must be installed at a distance of 6 5 ft or less from the PCB ...

Страница 106: ...hite Test pin Short circuiting this plug allows the operation of the indoor fan motor high and flap motor F1 position to be checked However this test operation stops if the indoor unit protection mechanism is activated The unit can be operated even if the remote controller and outdoor unit are not connected However if the remote controller is not connected it cannot be used to operate the unit Thi...

Страница 107: ...utputs external signals as shown in the figure below OPTION white Indoor unit control PCB CR1 DC 12V Relay DC 12V field supply Note Fan signal Heat start signal Cool start signal Thermostat signal Defrost signal Note The relay must be installed at a distance of 6 6ft or less from the PCB ...

Страница 108: ... DEATH ONLY A QUALIFIED EXPERIENCED ELECTRICIAN SHOULD ATTEMPT TO WIRE THIS SYSTEM Do not supply power to the unit until all wiring and tubing are completed or reconnected and checked CAUTION How to connect external heater Model S MF S ME S MP S MR 1 The output signal is 230V AC 2 When installing the heater be sure to turn OFF the power to the indoor unit 3 If it is wired to the connectors other t...

Страница 109: ...shipment The external heater functions as a supplementary heater in the heating mode The heater stops at the occurrence of alarm in the system The external heater functions as a supplementary heater in the heating mode and it can continue working even when there is an alarm in the system except the type of the alarm is the following P01 or P12 Failure in the indoor unit fan F10 Failure of return a...

Страница 110: ...the location marked with CN304 or CN340 Concerning the model of S MF S MP S MR S ME assort with the side of the high voltage wire Concerning the model of S MU S MY S MD S MT S MM assort with the side of the low voltage wire Model S ME Model S MF Model S MP S MR Field supply Part code 623 312 1390 CN304 Field supply Part code 623 312 1390 CN304 Field supply Part code 623 312 1390 CN304 Connecting p...

Страница 111: ...ntrol PCB 1 2 3 4 5 6 7 Model S MU Field supply Part code 623 312 1390 CN340 Model S MM CN340 Part code 623 312 1390 Field supply Model S MD S MT Field supply Part code 623 312 1390 CN340 Model S MY Field supply Part code 623 312 1390 CN340 ...

Страница 112: ...4 22 1 2 3 4 5 6 7 MEMO ...

Страница 113: ...5 1 Self Diagnosis Function Table Contents 1 2 3 4 5 6 7 5 SELF DIAGNOSIS FUNCTION TABLE 1 Self Diagnosis Function Table 5 2 TENTATIVE ...

Страница 114: ...emote controller wiring and the inter unit control wiring are connected correctly Check that the indoor unit power is ON An alarm appears on the wired remote controller sometime from several seconds to several minutes after automatic address setting is started LED 1 and 2 on the outdoor unit control PCB indicate that automatic address setting is in progress the LEDs blink alternately for several m...

Страница 115: ...Check that the amount of additional refrigerant charge is correct when performing Auto Address Setting Case 3A or Case 3B in the flow chart described on page 1 3 Check that the refrigerant tubing connections are correct when performing Auto Address Setting Case 3A or Case 3B in the flow chart described on page 1 3 Check that there are no problems with indoor unit sensors E1 and E3 when performing ...

Страница 116: ...uble at outdoor heat exchanger 1 F08 Outdoor air temperature sensor trouble F12 Compressor intake temperature sensor trouble F16 High pressure sensor trouble F31 Outdoor unit non volatile memory EEPROM trouble F17 Low pressure sensor trouble F23 Gas temperature sensor trouble at outdoor heat exchanger 2 F24 Liquid temperature sensor trouble at outdoor heat exchanger 2 H03 Compressor 1 CT sensor di...

Страница 117: ... 1 Outdoor Unit Maintenance Remote Controller 6 2 1 1 Over View 6 2 1 2 Functions 6 2 1 3 Ordinary Display Controls and Functions 6 3 1 4 Monitoring Operations 6 7 1 5 Outdoor Unit Alarm History Monitor 6 8 1 6 Setting the Outdoor Unit EEPROM Data 6 9 TENTATIVE ...

Страница 118: ...otal outdoor unit power ON time Outdoor unit microcomputer version other information 1 1 Overview About the outdoor unit maintenance remote controller The outdoor unit utilizes non volatile memory EEPROM on its PCB This allows EEPROM data to replace the setting switches that were present on previous PCBs The outdoor unit maintenance remote controller is used to set and change these EEPROM data In ...

Страница 119: ... outdoor unit EEPROM data settings The overall system status for that refrigerant system is displayed All units start stop Fig 6 1 Operation The ON OFF operation button can be used to start and stop all indoor units The LED illuminates if any indoor unit is operating The LED blinks if an alarm occurs at any of the operating indoor units Cooling heating change Fig 6 1 Operation The MODE button can ...

Страница 120: ...eration count Compressor 3 operating time Compressor 3 oil level Compressor 3 operation count Alarm history 1 most recent Alarm history 2 Alarm history 3 Alarm history 4 Alarm history 5 Alarm history 6 Alarm history 7 Alarm history 8 oldest Firmware version Program version Alarm code display Quantity 7 segment display 7 segment display 7 segment display 1 2 7 segment display 7 segment display 0 99...

Страница 121: ...or units 4 units connected Unit Nos 1 2 3 4 connected Fig 6 3 Fig 6 4 Fig 6 5 Sample display Fig 6 4 Fig 6 5 XX YY R C Displays the outdoor unit sub bus address which is currently selected XX Outdoor unit system address 1 30 YY Outdoor unit address 1 2 The locations where and are displayed as shown on Fig 6 3 ...

Страница 122: ... the display does not change if there are no higher number units connected To change the display to the higher number units before 10 seconds have passed press the FLAP button An 8 digit display is used for display of the compressor total operating time in 1 hour units When the first 4 digits are displayed the bottom dot of the colon is illuminated Figure A When the last 4 digits are displayed the...

Страница 123: ... The display returns to the normal display NOTE The display does not blink 1 2 4 3 0A and subsequent items are outdoor unit data 0A 22 are for unit No 1 2A 42 are for unit No 2 NOTE Display of unit No 1 main unit Not used DN Description Remarks Indoor unit electronic control valve position STEP Intake temp F Inverter primary current A Current at Compressor 2 CT2 A MOV1 pulse STEP MOV2 pulse STEP C...

Страница 124: ...d from the indoor unit remote controller However the unit No display shows the outdoor unit address Press the UNIT button and select the outdoor unit for which to monitor the alarm history Press the temperature setting and buttons and select the item code for the alarm history The selected outdoor unit address the item code and the alarm history alarm data are displayed The outdoor unit address is...

Страница 125: ...ding setting data 6 dig its are also displayed The 6 digits of the setting data are displayed by changing between the first 3 digits Fig A and the last three digits Fig B When the first 3 digits are displayed the top dot of the colon is illuminated To exit setting mode press the CHECK button 1 4 3 2 A B A and B are displayed alternately Snowfall sensor usage Outdoor unit fan Quiet mode Demand 1 cu...

Страница 126: ... blinking and remains lit blinks when this mode is engaged and when this mode is engaged Now Setting is dis played blinking and the address of the outdoor unit that is being set System XX YY System XX System address YY Outdoor unit address the item code No values from the table below and the corresponding settings data 6 digits are displayed The item code number values shown in the table below and...

Страница 127: ... MEMO 1 2 3 4 5 6 7 6 11 ...

Страница 128: ...201201 ...

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