Fujitsu AOU18RLXFW Service Instructions Manual Download Page 19

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22. VARIOUS PROTECTIONS

1. DISCHARGE GAS TEMPERATURE OVERRISE PREVENSION CONTROL

The discharge gas thermosensor (discharge thermistor : Outdoor side) will detect discharge gas

temperature.

ASU18/ 24RLF

219.2°F

(104°C)

213.8°F

(101°C)

230°F

(110°C)

When the discharge temperature becomes higher than Temperature ,the compressor frequency

is decreased 10rps, and it continues to decrease the frequency for 10rps every 120 seconds until

the temperature becomes lower than Temperature .

When the discharge temperature becomes lower than Temperature , the control of the control of

the compressor frequency is released.
When the discharge temperature becomes higher than Temperature ,the compressor is stopped

and the indoor unit LED starts blinking.

(Table19 : Discharge Temperature Over Rise Prevension Control / Release Temperature)

Temperature

2. CURRENT RELEASE CONTROL

The compressor frequency is controlled so that the outdoor unit input current does not exceeds

the current limit velue that was set up with the outdoor temperature.

The compressor frequency returns to the designated frequency of the indoor unit at the time

when the frequency becomes lower than the release value.

(Table20 : Current Release Operation Value / Release Value)

01-16

[ Heating ]

OT (Control / Release)

10.0A/ 9.5A

11.5A/ 11.0A
13.0A/ 12.5A
13.0A/ 12.5A

11.0A/ 10.5A

13.0A/ 12.5A
15.0A/ 14.5A
15.0A/14.5A

62.6°F(17°C)

53.6°F(12°C)

OT : Outdoor Temperature

41°F(5°C)

62.6°F(17°C)

53.6°F(12°C)

41°F(5°C)

ASU18RLF

OT (Control / Release)

OT : Outdoor Temperature

ASU24RLF

OT (Control / Release)

10.0A/ 9.5A

12.5A/ 12.0A
12.5A/ 12.0A

10.0A/ 9.5A

13.0A/ 12.5A
14.5A/ 14.0A

114.8°F(46°C)

104°F(40°C)

114.8°F(46°C)

104°F(40°C)

OT : Outdoor Temperature

ASU18RLF

OT (Control / Release)

OT : Outdoor Temperature

ASU24RLF

[ Cooling ]

122°F(50°C)

9.0A/ 8.5A

Summary of Contents for AOU18RLXFW

Page 1: ...SPLIT TYPE ROOM AIR CONDITIONER WALL MOUNTEDtype Models Indoor unit Outdoor unit INVERTER SERVICE INSTRUCTION R410A ASU18RLF ASU24RLF AOU18RLXFW AOU24RLXFW ...

Page 2: ... OPERATION 21 OFF DEFROST OPERATION CONTROL 20 DEFROST OPERATION CONTROL 01 01 01 02 01 02 01 03 01 04 01 06 01 07 01 08 01 09 01 11 01 11 01 11 01 11 01 12 01 12 01 12 01 12 01 12 01 13 01 15 22 VARIOUS PROTECTIONS 01 16 01 11 2 TROUBLE SHOOTING 2 1 ERROR DISPLAY 2 1 1INDOOR UNIT AND WIRED REMOTE CONTROLLER DISPLAY 3 APPENDING DATA 2 1 2 WIRED REMOTE CONTROLLER DISPLAY 2 2 TROUBLE SHOOTING WITH E...

Page 3: ...1 DESCRIPTION OF EACH CONTROL OPERATION R410A WALL MOUNTED type INVERTER ...

Page 4: ... C D zone Hi Me Lo Quiet A zone 55rps 36rps 29rps 25rps B zone 55rps 36rps 29rps 25rps C zone 47rps 36rps 29rps 25rps 18RLF D zone 37rps 33rps 26rps 20rps E zone 37rps 33rps 26rps 20rps F zone 37rps 33rps 26rps 20rps 72rps 49rps 41rps 29rps 72rps 49rps 41rps 29rps 55rps 41rps 36rps 29rps 43rps 36rps 31rps 20rps 43rps 36rps 31rps 20rps 41rps 36rps 31rps 20rps A zone B zone C zone 24RLF D zone E zon...

Page 5: ...ge shown in Table2 Table2 Compressor Frequency Range 01 02 minimum frequency maximum frequency ASU18RLF 14rps 67rps ASU24RLF 16rps 90rps 3 DRY OPERATION 3 1 INDOOR UNIT CONTROL The compressor rotation frequency shall change according to the temperature set temperature and room temperature variation which the room temperature sensor of the indoor unit body has detected as shown in the Table3 Howeve...

Page 6: ... changeover operation NO NO Thermostat remains in OFF state for 6 minutes or longer System stops or operation command other than auto changeover operation YES YES When the air conditioner is set to the AUTO mode by remote control operation starts in the optimum mode from among the HEATING COOLING DRY and MONITORING modes During operation the optimum mode is automatically switched in accordance wit...

Page 7: ...vention 3 COOLING OPERATION Switch the airflow AUTO and the indoor fan motor will run according to a room temperature as shown in Figure3 On the other hand if switched in HIGH QUIET the indoor motor will run at a constant airflow of COOL operation modes QUIET LOW MED HIGH as shown in Table4 Fig 3 Airflow change over Cooling AUTO When the room temperature rises When the room temperature drops TR Ro...

Page 8: ... constant airflow of HEAT operation modes QUIET LOW MED HIGH as shown in Table4 6 COOL AIR PREVENTION CONTROL Heating mode Fig 4 Airflow change over Heating AUTO TR Ts 3 F 1 5 C 5 F TR Ts 2 5 C 3 F TR Ts 5 F 1 5 C 2 5 C TR Ts 2 F 1 C 4 F TR Ts 2 C 2 F TR Ts 4 F 1 C 2 C When the room temperature rises When the room temperature drops TR Room temperature Ts Setting temperature LOW mode MED mode MED m...

Page 9: ...oor fan speed after the defrost 1 Outdoor Fan Motor 2 Fan Speed AC Motor DC Motor ASU18 24RLF Following table shows the type of the outdoor fan motor The control method is different between AC motor and DC motor Table5 Type of Motor ASU18RLF 800rpm Cooling Heating ASU18RLF ASU24RLF D F Zone 800 620 500 400 800 620 550 450 900 850 800 620 550 450 Refer to Fig 6 rpm 500 320 250 G H 300 230 200 220 2...

Page 10: ...de Heating Fan mode 3 SWING OPERATION When the swing signal is received from the remote controller the vertical louver starts to swing Swinging Range 1 3 1 4 4 6 Vertical Airflow Swing Operation Horizontal Airflow Swing Operation When the swing signal is received from the remote controller the horizontal louver starts to swing Cooling Heating Dry Fan mode Swinging Range 5 1 Vertical and Horizontal...

Page 11: ... Min Max Min Max Min Max Dry ASU18RLF ASU24RLF 12rps 55rps 14rps 67rps 15rps 25rps 16rps 72rps 16rps 90rps 16rps 29rps Table8 Compressor Operation Frequency Range 2 OPEARTION FREQUENCY CONTROL AT START UP The compressor frequency soon after the start up is controlled as shown in the Figure9 Fig 9 Compressor Control at Start up 01 08 30rps 60sec 47rps 60rps 120sec 180sec ...

Page 12: ...l be turned on Operation mode Stop mode Set time of timer The program timer allows the OFF timer and ON timer to be used in combination one time Operation mode Operation will start from the timer setting either OFF timer or ON timer whichever is closest to the clock s current timer setting The order of operations is indicated by the arrow in the remote control unit s display SLEEP timer operation ...

Page 13: ...ration mode When the sleep timer is set the setting temperature is increased 2 F 1 C It increases the setting temperature another 2 F 1 C after 1 hour After that the setting temperature is not changed and the operation is stopped at the time of timer setting Ts 2 F 1 C 4 F 2 C Set 60min In the heating operation mode When the sleep timer is set the setting temperature is decreased 2 F 1 C It decrea...

Page 14: ...essor won t enter operation status for 3 minutes after the compressor is stopped even if any operation is given At the time when the air conditioner is switched from the cooling mode to heating mode the compressor is stopped and the four way valve is switched in 3 minutes later after the compressor stopped When the power was interrupted by a power failure etc during operation the operation content...

Page 15: ... Forced cooling operation is started when pressing MANUAL AUTO button for 10 seconds or more During the forced cooling operation it operates regardless of room temperature sensor Operation LED and timer LED blink during the forced cooling operation They blink for 1 second ON and 1 second OFF on both operation LED and timer LED same as test operation Forced cooling operation is released after 60 mi...

Page 16: ... Table 14 15 and 16 From 2nd and later defrost after starting operation Less than 35 minutes More than 35 minutes Does not operate Compressor integrating operation time Table 14 Condition of 1st defrost operation 1st defrost after starting operation Compressor integrating operation time Less than 22 minutes More than 22 minutes More than 62 minutes Does not operate Outdoor heat exchanger temperatu...

Page 17: ...ting operation Over 62 minutes Outdoor heat exchanger temperature Below 15 8 F 9 C Outdoor heat exchanger temperature Below 23 F 5 C Compressor integrating operation Over 35 minutes 2nd and later defrost Compressor OFF Outdoor fan motor OFF 30 sec later 4 way valve OFF 35 sec later compressor ON Compressor integrating operation Over 210 minutes Integrating defrost Constant monitoring Defrost Indic...

Page 18: ...ressor operation integrating time lasts for more than 30 minutes OFF Defrost Flow Chart Heating operation stop Outdoor heat exchanger temperature Below 24 8 F 4 C and Compressor integrating operation Over 30 minutes Defrost start Defrost Indicater Operation lamp 7 sec ON 2 sec OFF Outdoor heat exchanger temperature Over 55 4 F 13 C or Compressor ON time Maximum 15 minutes Defrost end 2 OFF DEFROST...

Page 19: ...se Temperature Temperature Temperature Temperature 2 CURRENT RELEASE CONTROL The compressor frequency is controlled so that the outdoor unit input current does not exceeds the current limit velue that was set up with the outdoor temperature The compressor frequency returns to the designated frequency of the indoor unit at the time when the frequency becomes lower than the release value Table20 Cur...

Page 20: ...s performed 5 HIGH TEMPERATURE RELEASE CONTROL HEATING MODE On heating mode the compressor frequency is controlled as following based on the detection value of the indoor heat exchanger temperature sensor 01 17 Indoor heat exchange temperature Control System It returns to the normal operation 145 4 F 63 C Outdoor temperature Over than 50 F 10 C 1 or 53 6 F 12 C 2 Less than 50 F 10 C 1 or 53 6 F 12...

Page 21: ...2 TROUBLE SHOOTING R410A WALL MOUNTED type INVERTER ...

Page 22: ...times 3 times Continuous 7 times 4 times Continuous 2 times 7 times A F Voltage Error Discharge Thermistor Error Heat Ex Liquid Outlet Thermistor Error Outdoor Thermistor Error Compressor Thermistor Error Please refer the flashing pattern as follows Indoor Unit ASU18RLF 24RLF The OPERATION TIMER ECONOMY lamps operate as follows according to the error contents 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16...

Page 23: ...emorized error codes may be displayed for the indoor unit connected to the remote controller 1 Stop the air conditioner operation 2 Press the SET TEMPERATURE buttons simultaneously for 3 seconds or more to start the self diagnosis 4 Press the SET TEMPERATURE buttons simultaneously for 3 seconds or more or there is no key input for 60 seconds to stop the display 3 Press the SET TEMPERATURE button t...

Page 24: ...Manual or Data Technical Manual Check connection condition in control unit If there is loose connector open cable or mis wiring Check Point 3 Check the voltage of power supply Check the voltage of power supply Check if AC187V AC208V 10 253V AC230V 10 appears at outdoor unit terminal L1 L2 When the indoor unit cannot receive the serial signal from Outdoor unit more than 2minutes after power ON or t...

Page 25: ...Check connection Check any loose or removed connection line of between indoor unit and outdoor unit If there is an abnormal condition correct it by referring to Installation Manual or Data Technical Manual Check connection condition in control unit If there is loose connector open cable or mis wiring Check Point 3 Check the voltage of power supply Check the voltage of power supply Check if AC187V ...

Page 26: ...e 3 Controller PCB failure Check correct the followings Check the connection of terminal between Wired Remote Controller and indoor unit and check if there is a disconnection of the cable When the indoor unit cannot properly receive the signal from Wired Remote Controller for 1 minute or more 02 05 Refer to error code table If it is DC13V Remote Control is failure Controller PCB is normal Replace ...

Page 27: ... Check if there is any equipment that causes harmonic wave near the power cable Neon light bulb or any electronic equipment which causes harmonic wave Note EEPROM EEPROM Electronically Erasable and Programmable Read Only Memory is a non volatile memory which keeps memorized information even if power is turned off It can change the contents electronically To change the contents it uses higher volta...

Page 28: ...ds 1 Manual Auto Switch failure 2 Controller PCB and Indicator PCB failure Check Point 1 Check the Manual Auto Switch Check if Manual Auto Switch is kept pressed Check ON OFF switching operation by using a meter If Manual Auto Switch is disabled on off switching replace it Check Point 2 Replace Controller PCB and Indicator PCB If Check Point 1 do not improve the symptom replace Controller PCB and ...

Page 29: ...ble is open Reset Power when reinstalling due to removed connector or incorrect wiring 6 5 95 8 0 86 10 0 12 5 15 8 20 2 25 9 33 6 77 68 59 50 41 32 Temperature F 3 59 4 35 5 3 Resistance value k 122 113 104 Temperature F OK OK Check Point 3 Check voltage of Controller PCB DC5 0V Make sure circuit diagram of each indoor unit and check terminal voltage at Thermistor DC5 0V If the voltage does not a...

Page 30: ...rect wiring OK Check Point 2 Remove connector and check Thermistor resistance value OK Check Point 3 Check voltage of Controller PCB DC5 0V Make sure circuit diagram of each indoor unit and check terminal voltage at Thermistor DC5 0V If the voltage does not appear replace Controller PCB and execute the check operation again DC BLACK BLACK BLACK BLACK 1 2 1 2 CN3 CN1 1 2 3 1 2 3 RED WHITE H E Therm...

Page 31: ...tate the fan by hand when operation is off Check if fan is caught dropped off or locked motor If Fan or Bearing is abnormal replace it Check excessively high temperature around the motor If there is any surrounding equipment that causes heat Upon the temperature coming down restart operation When the condition that actual frequency of Indoor Fan is below 1 3 of target frequency is continued more t...

Page 32: ... 1 3 do not improve the symptom change Main PCB Check Point 1 Check external cause at Indoor and Outdoor Voltage drop or Noise Instant drop Check if there is a large load electric apparatus in the same circuit Momentary power failure Check if there is a defective contact or leak current in the power supply circuit Noise Check if there is any equipment causing harmonic wave near electric line Neon ...

Page 33: ... there anything obstructing the air distribution circuit Is there any clogging of Outdoor Heat Exchanger Is the Fan rotating by hand when operation is off If the Fan Motor is locked replace it Check Outdoor Fan Motor Refer to Trouble shooting 19 If the Fan Motor is failure replace it Check Point 4 Check Compressor PARTS INFORMATION 2 Check Compressor If Check Point 1 5 do not improve the symptom c...

Page 34: ... is removed Check if connector is erroneous connection Check if thermistor cable is open Upon correcting the removed connector or mis wiring reset the power Check Point 2 Remove connector and check thermistor resistance value Thermistor characteristics Approx value If Thermistor is either open or shorted replace it and reset the power Check Point 3 Check voltage of Main PCB DC5 0V Make sure circui...

Page 35: ...ove connector and check thermistor resistance value Thermistor characteristics Approx value If Thermistor is either open or shorted replace it and reset the power Check Point 3 Check voltage of Main PCB DC5 0V Make sure circuit diagram of outdoor unit and check terminal voltage at thermistor DC5 0V If the voltage does not appear replace Main PCB 02 14 Refer to error code table BLACK BLACK BROWN BR...

Page 36: ...connector is erroneous connection Check if thermistor cable is open Upon correcting the removed connector or mis wiring reset the power Check Point 2 Remove connector and check thermistor resistance value Thermistor characteristics Approx value If Thermistor is either open or shorted replace it and reset the power Check Point 3 Check voltage of Main PCB DC5 0V Make sure circuit diagram of outdoor ...

Page 37: ...moved Check if connector is erroneous connection Check if thermistor cable is open Upon correcting the removed connector or mis wiring reset the power Check Point 2 Remove connector and check thermistor resistance value Thermistor characteristics Approx value If Thermistor is either open or shorted replace it and reset the power Check Point 3 Check voltage of Main PCB DC5 0V Make sure circuit diag...

Page 38: ...e 1 Defective connection of electric components 2 External cause 3 Main PCB failure Instant drop Check if there is a large load electric apparatus in the same circuit Momentary power failure Check if there is a defective contact or leak current in the power supply circuit Noise Check if there is any equipment causing harmonic wave near electric line Neon bulb or electric equipment that may cause h...

Page 39: ...ssor 1 Outdoor unit fan operation defective foreign matter on hear exchanger excessive rise of ambient temperature 2 Main PCB 3 Inverter compressor failure lock winding short 4 Transistor PCB IPM failure Protection stop by overcurrent generation after inverter compressor start processing completed generated consecutively 10 times The number of generations is reset if the start up of the compressor...

Page 40: ...r or mis wiring reset the power Refer to PARTS INFORMATION 2 For Compressor Terminal Main PCB While running the compressor if the detected rotor location is out of phase with actual rotor location more than 90 the compressor stops After the compressor restarts if the same operation is repeated within 40sec the compressor stops again If and repeats 5 times the compressor stops permanently Check Poi...

Page 41: ...heck Point 4 Check Output Voltage of Main PCB Check outdoor unit circuit diagram and the voltage Measure at Main PCB side connector If the voltage is not correct replace Main PCB When outdoor fan rotation speed is less than 100rpm in 20 seconds after fan motor starts fan motor stops After fan motor restarts if the same operation within 60sec is repeated 3 times in a row compressor and fan motor st...

Page 42: ... is not proper replace 4 way valve OK OK Check Point 4 Replace Main PCB If Check Point 1 3 do not improve the symptom replace Main PCB Check Point 2 Check thermistor of Indoor unit Isn t it fallen off the holder Is there a cable pinched Check characteristics of thermistor Refer to Trouble shooting 6 7 If defective replace the thermistor Indoor Unit Controller PCB Circuit Heat Exchanger Temperature...

Page 43: ...ACM oil return Refer to Service Parts Information 3 4 Check Point 3 Check the outdoor unit fan heat exchanger Check for foreign object at heat exchanger Check if fan can be rotated by hand Motor check PARTS INFORMATION 7 Check Point 2 Check the EEV strainer Check Point 5 Check the refrigerant amount Leak check EEV EEV1 EEV2 open Strainer clogging check before and after EEV ACM oil return Refer to ...

Page 44: ...pply circuit Noise Check if there is any equipment causing harmonic wave near electric line Neon bulb or electric equipment that may cause harmonic wave Check the complete insulation of grounding 02 23 2 3 TROUBLE SHOOTING WITH NO ERROR CODE Check Point 3 Check Electrical Components YES YES OK NO Check the voltage of power supply Check if AC187 253V appears at Outdoor Unit Terminal L1 L2 Check Var...

Page 45: ...large load electric apparatus in the same circuit Momentary power failure Check if there is a defective contact or leak current in the power supply circuit Noise Check if there is any equipment causing harmonic wave near electric line Neon bulb or electric equipment that may cause harmonic wave Check the complete insulation of grounding Check the voltage of power supply Check if AC187 253V appears...

Page 46: ...cal Manual Turn off Power and check correct followings Is there loose or removed communication line of Indoor Unit and Outdoor Unit Instant drop Check if there is a large load electric apparatus in the same circuit Momentary power failure Check if there is a defective contact or leak current in the power supply circuit Noise Check if there is any equipment causing harmonic wave near electric line ...

Page 47: ...ts that obstruct the air flow route Check clogged Heat Exchanger Is the Valve open Is capacity of Indoor Unit fitted to Room size Any windows open Or direct sunlight Check connection pipe specified pipe length Pipe diameter Check any loose or removed communication line If there is an abnormal condition correct it by referring to Installation Manual or Data Technical Manual Check if Strainer is clo...

Page 48: ...on grille and front panel normal Is Fan broken or deformed Is the screw of Fan loose Is there any object which obstruct the Fan rotation Is Main Unit installed in stable condition Is Fan Guard installed normally Check if vibration noise by loose bolt or contact noise of piping is happening Is Compressor locked Check Compressor PARTS INFORMATION 1 2 Water Leaking 1 Erroneous installation 2 Drain ho...

Page 49: ...mpressor due to clogged dirt or less oil Replace Compressor Replace Compressor Replace Compressor Stops soon after starting up Is there open or loose connection cable Is Gas Pipe Valve open Low Pressure is too low Check if Refrigerant is leaking Recharge Refrigerant Check if Strainer is clogged PARTS INFORMATION 3 If there is no failure the defect of Compressor can be considered Compression part b...

Page 50: ... terminal connection of Compressor loose or incorrect wiring Check winding resistance of each terminal If the resistance value is 0 or infinite replace Compressor If the symptom does not change with above Check 1 2 replace Main PCB 02 29 Resistance Value 0 642 at 68 F 20 C U RED V WHITE W BLACK IPM PCB TM303 TM304 TM305 RED WHITE BLACK Compressor Inverter PCB ...

Page 51: ...eck connection of connector Loose connector or open cable Remove connector check each winding resistance of Coil If Resistance value is abnormal replace EEV Remove Connector and check Voltage DC12V If it does not appear replace Main PCB Turn on Power and check operation noise If an abnormal noise does not show replace Main PCB When Valve is closed it has a temp difference between Inlet and Outlet ...

Page 52: ...oltage Vm No function No function Earth terminal GND Control voltage Vcc Speed command Vsp Feed back FG SERVICE PARTS INFORMATION 4 Check Point 1 Check rotation of Fan Indoor unit fan motor Rotate the fan by hand when operation is off Check if fan is caught dropped off or locked motor If Fan or Bearing is abnormal replace it Check Point 2 Check resistance of Indoor Fan Motor Refer to below Circuit...

Page 53: ...utput voltage of compressor stopping Active Filter Module is detective Replace Active Filter Module Terminal Resistance value L2 L1 L1 L2 P P Control Box N N IN IN IN IN Tester Tester Check the open or short circuit L2 P P N L2 L2 Check the diode 0 360k 720k 1 69M 20 360k 20 20 Ref value 1 1 88M Ref value 2 1 40M Ref value 1 2 28M Ref value 2 Terminal Resistance value Tester Tester 1 32M Ref value...

Page 54: ...de and measure the resistance between the following terminals Set the tester to the Diode mode and measure the voltage value between the following terminals Judge the result of as follows Judge the result of as follows TM301 P TM305 U TM304 V TM303 W TM302 N TM305 U TM304 V TM303 W P P P U V W N N N U V W U V W P P P U V W N N N Over 2k Including Over 2k Including Over 20k Including Terminal Teste...

Page 55: ...3 APPENDING DATA R410A WALL MOUNTED type INVERTER 1 FUNCTION SETTING 2 OUTDOOR UNIT PRESSURE VALUE AND TOTAL ELECTRIC CURRENT CURVE 3 THERMISTOR RESISTANCE VALUES ...

Page 56: ...ect the time setting for the filter sign display interval in the table below according to the amount of dust or debris in the room If you do not wish the filter sign to be displayed select the setting value for No indication Factory setting Setting Description Function Number Setting Value Standard Slightly lower control Lower control Warmer control 30 00 01 02 03 1 2 Setting the Cooler Room Tempe...

Page 57: ...troller temperature sensor Factory setting Setting Description Function Number Setting Value A B C D 44 00 01 02 03 1 6 Setting the Remote controller signal code Change the indoor unit Signal Code depending on the remote controllers Factory setting Setting Description Function Number Setting Value Operation Stop mode Setting forbidden Forced stop mode 46 00 01 02 1 7 Setting the External input con...

Page 58: ...etting Value Press the FAN button again to return to the Function Number selection Selecting the Function Number and Setting Value 6 Press the START STOP button It makes a signal to indoor unit Indoor unit run the setting 7 Press the RESET button to cancel the function setting mode 8 After completing the FUNCTION SETTING be sure to turn of the power and turn it on again CAUTION After turning off t...

Page 59: ...e setting of Fanction Number and Setting Value after setting custom code in remote controller please set custom code in remote controller again The remote control unit resets to signal code A when the batteries in the remote control unit are replaced If you use a signal code other than signal code A reset the signal code after replacing the batteries If you do not know the air conditioner signal c...

Page 60: ...continuously for 30 minutes After 60 minutes of operation Test mode is released automatically 1 Indoor Outdoor Temperature Outdoor Low Pressure Curve ASU24RLF 2 Indoor Outdoor Temperature Outdoor Total Electric Current Curve ASU24RLF Measure the low pressure with the pressure meter at the service valve Measure the outdoor unit overall current with the current clamp meter at Power Cable 03 05 0 7 0...

Page 61: ...n of remote control 2 Operate continuously for 30 minutes After 60 minutes of operation Test mode is released automatically 1 Indoor Outdoor Temperature Outdoor High Pressure Curve ASU24RLF 2 Indoor Outdoor Temperature Outdoor Total Electric Current Curve outdoor unit overall current with the current clamp meter at Power Cable length 03 06 2 0 2 2 2 4 2 6 2 8 3 0 3 2 3 4 32 0 41 5 50 10 59 15 High...

Page 62: ...tton of remote control 2 Operate continuously for 30 minutes After 60 minutes of operation Test mode is released automatically 1 Indoor Outdoor Temperature Outdoor Low Pressure Curve ASU18RLF 2 Indoor Outdoor Temperature Outdoor Total Electric Current Curve ASU18RLF Measure the low pressure with the pressure meter at the service valve Measure the outdoor unit overall current with the current clamp...

Page 63: ...T button of remote control 2 Operate continuously for 30 minutes After 60 minutes of operation Test mode is released automatically 1 Indoor Outdoor Temperature Outdoor High Pressure Curve ASU18RLF 2 Indoor Outdoor Temperature Outdoor Total Electric Current Curve outdoor unit overall current with the current clamp meter at Power Cable length 03 08 2 0 2 2 2 4 2 6 2 8 3 0 3 2 3 4 32 0 41 5 50 10 59 ...

Page 64: ... 70 39 57 31 74 25 64 20 85 17 06 14 10 11 64 9 69 8 12 6 83 5 78 4 91 4 19 3 59 3 09 1 10 1 36 1 63 1 92 2 21 2 51 2 79 3 06 3 30 3 53 3 73 3 90 4 55 4 19 4 30 4 40 4 48 4 55 4 61 4 66 4 71 Indoor heat exchanger thermistor Voltage V Resistance K Tempe F Tempe C 22 0 13 0 4 0 5 0 14 0 23 0 32 0 41 0 50 0 59 0 68 0 77 0 86 0 95 0 104 0 113 0 122 0 131 0 140 0 149 0 158 0 167 0 176 0 185 0 194 0 203...

Page 65: ...12 45 9 74 7 67 6 09 4 87 3 92 3 17 2 59 2 12 1 75 1 45 1 21 1 01 0 85 0 72 0 61 0 254 0 341 0 449 0 581 0 741 0 928 1 14 1 38 1 64 1 91 2 19 2 47 2 74 3 00 3 24 3 46 3 66 3 83 3 99 4 12 4 24 4 34 4 43 Outdoor heat exchanger thermistor Voltage V Resistance K Tempe F Tempe C 22 0 13 0 4 0 5 0 14 0 23 0 32 0 41 0 50 0 59 0 68 0 77 0 86 0 95 0 104 0 113 0 122 0 131 0 140 0 149 0 158 0 167 0 176 0 30 ...

Page 66: ...1116 Suenaga Takatsu ku Kawasaki 213 8502 Japan Jan 2011 Printed in Japan ...

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