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b) The control box cover consists of two parts (top and bottom parts). Each can be removed separately

by unscrewing two screws and pulling the cover down. Connectors and dipswitches on the main board
can be operated by removing only the top part. Only remove the bottom part when servicing power
supply lines and transmission lines.

a) Remove the service panel by unscrewing the 6 screws as shown in the picture on the right.

(2) Control Box and Location of Terminals

1

Outdoor Unit

Front Panel

2

2

Restrictions on Transmission Lines

[1] Electrical Wiring

(1) Attention

1

Follow ordinance of your governmental organization for technical standard related to electrical equipment,
wiring regulations, and guidance of each electric power company.

2

Wiring for control (hereinafter referred to as transmission line) shall be (5cm or more) apart from power
source wiring so that it is not influenced by electric noise from power source wiring.(Do not insert trans-
mission line and power source wire in the same conduit.)

4

Give some allowance to wiring for electrical part box of indoor and outdoor units, because the box is
sometimes removed at the time of service work.

5

Never connect 380~415V(220~240V )power source to terminal block of transmission line.If
connected,electrical parts will be burnt out

6

Use 2-core shield cable for transmission line. If transmission lines of different systems are wired with the
same multiplecore cable, the resultant poor transmitting and receiving will cause erroneous operations.

NO

OK

TB3

TB7

TB3

TB7

TB3

TB7

TB3

TB7

Multiple-core Cable

2-core Cable

2-core Cable

Indoor Unit

Indoor Unit

Outdoor Unit

Outdoor Unit

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Содержание CITY MULTI PFD-P250VM-A

Страница 1: ...Handbook PUD P250YMF C PFD P250VM A PFD P500VM A Issued in Jun 2004 MEE03K207 A Printed in Japan New publication effective Jun 2004 Specifications subject to change without notice HEAD OFFICE MITSUBIS...

Страница 2: ...ary Tools and Materials 10 1 List of Tools and Materials Necessary for Units that Use R407C and adaptability of tools that have been used with units that use R22 10 3 Piping Materials 11 4 Storage of...

Страница 3: ...Electrical Power Failure 65 4 Operation Flow Chart 66 1 Mode Selection Flow Chart 66 2 Operation in each Mode 68 6 6 Refrigerant Amount Adjustment 1 Operating Characteristics and Refrigerant Amount 6...

Страница 4: ...wing Symptoms Appear 125 4 Standard Operation reference data 126 1 Cooling Operation 126 2 Operation under Other Conditions 126 0 0 When Refrigerant Leaks 1 Repairing Leaks Preparation making repairs...

Страница 5: ...r fire Securely attach the terminal cover panel on the unit If installed improperly dust and or water may enter the unit and fire or electric shock may result When relocating the air conditioner consu...

Страница 6: ...h a large amount of mineral oil Be especially careful when managing tools Exercise caution so that tools do not introduce dust dirt and water into the refrigerant cycle Use liquid refrigerant to charg...

Страница 7: ...nes for the Quality of Water for Refrigeration and Air Conditioning established by the Japan Refrigeration and Air Conditioning Industry Association Using low quality water may result in decreased per...

Страница 8: ...injury from accidentally touching rotating high temperature or high voltage parts Properly dispose of packing materials Things such as nails and wood pieces may be included in the package Dispose of t...

Страница 9: ...line that connects the indoor and outdoor units This system consists of 2 refrigerant circuits 3 Indicates TB7 type transmission line that allows the unit to communicate with the controller When using...

Страница 10: ...t exposed to air the drier will absorb moisture Replace the drier as quickly as possible after removing the old one 7 Preparing the connecting pipes When relocating or replacing the unit find out what...

Страница 11: ...cuum Gauze Refrigerant Charging Meter Welder and Nitrogen Cylinder Pipe Cutter Torque Wrench Bender Flare Tool Flaring pipes Checking vacuum degree Refrigerant charging Welding pipes Cutting pipes Tig...

Страница 12: ...he piping 2 Use refrigerant pipes made of C1220 phosphorus deoxidized copper categorized under H3000 Copper and Copper Alloy Seamless Pipes and Tubes a standard set by JIS Keep inner and outer surface...

Страница 13: ...hould be sealed until immediately before brazing Wrap elbows and T s in plastic for storage The new refrigerator oil is ten times more hygroscopic than conventional refrigerator oils such as Suniso Wa...

Страница 14: ...ll amount of ester oil ether oil or alkylbenzene as refrigerator oil to coat flares and flange connections Caution Use only the smallest possible amount of oil necessary Do not use oils other than est...

Страница 15: ...l care must be taken to keep moisture out of the system 2 Flux generally contains chlorine A residual flux in the refrigerant circuit may deposit sludgy materials in the pipes Caution Because the resi...

Страница 16: ...ng temperature variations into account 2 When investigating locations of leaks using a refrigerant be sure to use R407C 3 Make sure that R407C is in a liquid state when charging the circuit Rationale...

Страница 17: ...d by a thorough evacuation After evacuating leave the equipment for one hour and make sure that degree of vacuum does not rise higher than 130Pa Refer to section 6 Special Vacuuming Method if it excee...

Страница 18: ...ged while the rest of the refrigerants remain in the cylinder Caution Do not use cylinders with a siphon upside down When using a cylinder with a siphon R407C is charged in a liquid state without the...

Страница 19: ...ment Valve Liquid R407C Cylinder with siphon Manufactured by Asahi Glass Caution The cylinders shown below are equipped with siphons When using this type of cylinders place the cylinder with the sipho...

Страница 20: ...ion When using water cooled heat source unit please note that CS circuit is only found on the inverter side but not on the constant rate side 1 Replace the drier when the refrigerant circuit is opened...

Страница 21: ...upplied to the unit the change will not take effect and it will cause the unit to malfunction Type Outdoor Unit Indoor Unit Address Switch rotary 1 Power Source Switch Connector 4 Pin connector CN40 S...

Страница 22: ...up 2 Group 3 There are two controller boards inside indoor units for P500 type There are one controller board inside indoor units for P250 type SW12 SW11 Unit Address 10 s Digits Single digits Switch...

Страница 23: ...ric power company 2 Wiring for control hereinafter referred to as transmission line shall be 5cm or more apart from power source wiring so that it is not influenced by electric noise from power source...

Страница 24: ...ssion line screw on an attachment plate with two screws see below Fix the power supply line with the bottom clamp and fix the transmission line with the top clamp Front side Controller box Transmissio...

Страница 25: ...cular system requires switch settings depends on its components Refer to the section 5 Examples before conducting electrical work Keep the power turned off while setting the switches If settings are c...

Страница 26: ...frigerant system choose a different one in the range specified above 3 When setting the address to 100 set the switch to 50 Assign a number to all indoor units starting with 1 and using sequential num...

Страница 27: ...2 L1 200m 1 Use power supply connector CN41 on the outdoor unit as is 2 It is not necessary to ground the S terminal of centralized control transmission terminal board TB7 on the outdoor unit 3 The ou...

Страница 28: ...erminal board TB5 b Switch Setting Set the address as follows MA remote controller Sub Controller Main Controller MA MA 3 n a Main Unit or Controller Address Setting Range Steps Factory Setting Settin...

Страница 29: ...he outdoor units S terminal of TB7 centralized control transmission terminal 5 The outdoor unit cannot be connected to indoor units other than the PFD type ones a Indoor Outdoor transmission line Maxi...

Страница 30: ...Grounding the shield line Connect S terminals of the TB7 of each of the outdoor units with each other Connect the S terminal of TB7 on the outdoor unit whose CN41 was replaced with CN40 to the earth...

Страница 31: ...main and sub controllers can be connected to the indoor unit in the same group Disconnect the MA remote control wire from TB15 if using more than 2 remote controllers 6 The outdoor unit cannot be con...

Страница 32: ...r d Switch Setting Set the address as follows MA remote controller Sub Controller Main Controller MA MA 3 n a Main Unit or Controller Address Setting Range Steps Factory Setting Setting Procedures Ind...

Страница 33: ...up Disconnect the MA remote control wire from TB15 if using more than 2 remote controllers 6 The outdoor unit cannot be connected to indoor units other than the PFD type ones a Indoor outdoor transmis...

Страница 34: ...indoor units as sub controller d Switch Setting Set the address as follows MA remote controller Sub Controller Main Controller MA MA 3 n a Main Unit or Controller Address Setting Range Steps Factory S...

Страница 35: ...t L1 L2 m2 Use CN41 as is Replace CN41 with CN40 There is one indoor controller board inside indoor unit Connect 1 Use odd numbers to set 10HP indoor unit address 2 When setting unit address for 20HP...

Страница 36: ...controller Sub Controller Main Controller MA MA 3 n a Main Unit or Controller Address Setting Range Steps Factory Setting Setting Procedures Indoor Unit Outdoor Unit Main Unit 10HP 20HP IC OC 1 2 Rem...

Страница 37: ...terminal board for centralized controller on the outdoor unit 5 No more than two main sub remote controllers can be connected to the indoor unit in the same group When more than two remote controllers...

Страница 38: ...01 03 05 Add 50 to the address assigned to the indoor unit within the same refrigerant system Use dipswitch to set the controller as sub controller Sub Unit 20HP IC 02 50 Add 1 to the address assigne...

Страница 39: ...nt is contaminated with dust dirt or moisture refrigerator oil will deteriorate and problems with compressor may result Use refrigerant pipes made of C1220 phosphorus deoxidized copper categorized und...

Страница 40: ...39 2 2 Components of the Unit 1 1 Internal Structure PUD P250YMF C PUD YMF C Propeller fan Fan motor Compressor Heat exchanger front Control box Heat exchanger rear SCC Accumulator Compressor Drier...

Страница 41: ...roller Bearing Bearing Fan casing Linear expansion valve LEV Main drain pan Pipes gas liquid Drain hose Pulley 2 Remote control Controller Base Drain pan Pipes gas liquid Drain hose Bearing Air filter...

Страница 42: ...sion valve LEV 2 Main drain pan Pipes gas liquid 2 Drain hose Base Drain pan Pulley 2 Discharge temperature thermistor 2 Local switch Controller Air filter Bearing Drain hose Pipes gas liquid 2 Drain...

Страница 43: ...board Noise filter Choke coil L2 Terminal block TB1A Power Source Terminal block TB7 Transmission Centralized control Terminal block TB3 Transmission Inteligent Power Module IPM G A board Diode stack...

Страница 44: ...itch normal local NO 1 NO 2 local normal CN2 CN2 CN2 CN2 CN2 CN2 CN2 CN2 CN3 CN3 CN31 CN31 CN25 CN25 CN60 CN60 CN81 CN81 CN42 CN42 CN24 CN24 CN70 CN70 CNT CNT CND CND CN CN3T CN23 CN23 CNV CNV 1A 5A P...

Страница 45: ...control 5V CNS1 CNS2 CN40 CN41 CNVCC3 Power source for control 5V 1 2 30V 1 3 30V 4 6 12V 5 6 5V CN51 Indication distance 3 4 Compressor ON OFF 3 5 Trouble CNRS3 Serial transmission to INV board CN3D...

Страница 46: ...CNVCC2 Power supply for control 5V 1 2 30V 1 3 30V 4 6 12V 5 6 5V SW1 CNRS2 Serial transmission to MAIN board CNACCT CNAC2 Power supply 1 L2 3 N 5 G CNFAN Control for MF1 CN52C Control for 52C CNR CNV...

Страница 47: ...46 FANCON Board G A Board CNFAN CNFC2 CNPOW CNE CNIPM1 CNDC1 CN15V1 CNDR1...

Страница 48: ...20 CN21 CN29 CN22 Thermistor input CN3T Power supply input from transformer CNV CNP Lamp output CNT Power supply output to transformer CND Power supply input AC 200V F901 Fuse CN2M Indoor unit transmi...

Страница 49: ...53 Indoor control board No 1 To CN51 CN54 Indoor control board No 2 To CN51 TB22 Relay contact output No 1 operation status No 1 error status No 2 operation status No 2 error status TB23 Input with vo...

Страница 50: ...NS1 1 3 2P CNVCC4 1 1 2 2 3 2 2 3P CN20 3 1 1 3P CN33 3 2A F 250VAC F01 1 5 3 2 2 4 1 3 6 5 5 4 3 2 1 5 4 3 2 1 3 2 1 3 2 1 1 2 2 1 8 1 7 6 3 2 1 1 4 2 3 3 4 2 5 R6 PE L3 1 L1 M1 M2 S L2 SV2 Refer to...

Страница 51: ...onnected indoor unit 50 4 Conventions terminal bed connector board insertion connector or fastening connector of control board Address odd SWC SWA TB22 IFB Terminal bed for distant location display Th...

Страница 52: ...9 0 9 A B C D E F 1 2 3 4 5 6 7 8 0 8 7 6 5 4 3 2 1 9 1 2 3 4 5 6 7 8 9 0 9 A B C D E F 0 TB5 1 TB2 TB5 2 FAN over current detection RC SHIELD TB15 Address odd Address even TB22 IFB Terminal bed for...

Страница 53: ...T4 LEV1 Comp Drier TH2 TH10 CP3 CV2 TH8 TH5 SV2 ST5 TH1 CV2 HEX 1 HEX 2 TH6 SCC SV3 CP1 CJ1 CJ2 63HS SV1 ST3 CV1 O S 63H 63LS MA SA SLEV CP4 TH9 TH7 ST4 LEV1 Comp Drier TH2 TH10 CP3 TH8 TH5 SV2 ST5 TH...

Страница 54: ...C 104k 90 C 17 5k 50 C 70k 100 C 13 0k 60 C 48k 110 C 9 8k 1 Detects the saturated vapor temperature 2 Calculates the refrigerant circulation configuration 3 Controls the compressor frequency 4 Contro...

Страница 55: ...rol high pressure rise and low pressure drop suppression Back up system for frequency control SV3 Control of heat exchanger capacity Adjusts liquid refrigerant oil return from accumulator Adjusts bypa...

Страница 56: ...with tester Refer to checking White red orange Yellow brown blue White Red Orange Yellow brown blue Controls Indoor Unit Intake thermostat Controls indoor unit freeze prevention Evaporating temp detec...

Страница 57: ...lid Invalid Deletion of refrigerant system connection information Deletion of IC OC error history Storage of IC OC error history Refrigerant amount adjustment operation Disregard errors Operation star...

Страница 58: ...ming for DIPSW SW 1 2 3 4 is during unit stoppage remote OFF It is not necessary to reset the settings by power off Switch Function Function According to Switch Operation OFF ON Switch Set Timing OFF...

Страница 59: ...lenoid bypass valves on high pressure and low pressure sides SV1 SV2 performs the following functions 1 Bypass Solenoid Valves SV1 SV2 Both SV1 and SV2 are open when set to ON At compressor startup SV...

Страница 60: ...every 20 seconds thereafter Operating temperature is 124 C 2 Periodical Frequency Control Frequency controls other than the ones performed in respond to the status change or for protection are called...

Страница 61: ...below the CS circuit has the structure to bypass part of the gas discharged from the compressor through the capillary tube to the suction side of the compressor exchange heat before and after the cap...

Страница 62: ...e the fan will also stop will stop When problems are found in only one of the two units of a 2 refrigerant circuit only the unit with the problems will run an emergency operation or stop its operation...

Страница 63: ...Cooling fan COMP IPM Intelligent power module DC530 580V DS Diode stack Noise filter Gate amp board Inverter board Main control board TB7 TB3 3N 380 400 415V Centralized control unit transmission lin...

Страница 64: ...Three minutes have past since thermo OFF AND TH24 Target Temperature 1 C AND TH21 is higher than when thermo is OFF TH24 Discharge thermistor TH21 Suction thermistor b Thermo OFF Condition When outdo...

Страница 65: ...ON when maintenance switch of the indoor unit is on OFF upon normal shutdown 3 Temperature Setting Range Both suction and discharge temperatures can be set between 14 and 30 C from the centralized con...

Страница 66: ...s are met the unit will be in a 20 second restart suspension mode 3 Stopping Conditions When either of the following conditions is met HT22 10 C Six minutes have elapsed since the beginning of this op...

Страница 67: ...t Cooling Mode ations Start Remote controller off FAN stops Breaker on Error mode 1 Note 2 Note 1 Operation SW on 1 Self holding of protection function released 2 Indoor LEV fully open Normal oper Abn...

Страница 68: ...S YES NO NO System startup completed Approx 1 minute NO NO 1 52C OFF 2 Inverter output 0Hz 3 Fan stop 4 All solenoid valves OFF 1 Self holding of protection function released 2 SLEV LEV1 fully open ou...

Страница 69: ...ypass LEV fully closed 3 Solenoid valve OFF 4 Outdoor unit fan stop 1 Inverter frequency control 2 Indoor unit LEV control 3 Solenoid valve control 4 Outdoor unit fan control Cooling operation 4 way v...

Страница 70: ...the controller 4 Intermittent Fault Check Code 1243 is recorded in the error history 1 Discharge temperature is high over 125 C Condition Evaluation Tend towards under fill Tend towards overfill 2 Lo...

Страница 71: ...the figure in the 1 100th digit i e 18 54kg 18 6kg Pipes shown above are liquid pipes 12 7 120m Fill each refrigerant circuit in a 2 refrigerant circuit system with the above amount Outdoor Unit Mode...

Страница 72: ...oor unit is between 6 and 13K 2Even if currently within adequate range the possibility exists that with a passage of time the amount of refrigerant will be found to be inadequate In the case when outd...

Страница 73: ...he unit for 5 minutes after adjusting refrigerant amount Run the unit for 5minutes after adjusting refrigerant amount and check Tc TH5 At least 2 hours have past since the unit was turned on OR The un...

Страница 74: ...voltage abnormality 4230 Radiator panel overheat protection 4240 Over loard protection 4250 IPM Alarm output Bus voltage abnormality Over Current Protection 4260 Cooling fan abnormality Air inlet TH21...

Страница 75: ...eliminary suction pressure abnormality 1607 CS circuit b 1608 Control valve abnormality 1659 1559 Oil balance circuit abnormality lock abnormality Preliminary serial transmission abnormality 4300 5301...

Страница 76: ...detected again the second time within 30 minutes after stop of outdoor unit emergency stop is observed with code No 1102 displayed 3 When 140 C or more temp is detected 30 or more minutes after stop...

Страница 77: ...actually per forming cooling only or heating only operations Cooling only indoor LEV Outdoor LEV1 See Trouble check of LEV and sole noid valve Check address setting of indoor unit connector Confirm th...

Страница 78: ...air volume caused by dust on indoor unit fan 8 Dust on indoor unit heat exchanger 9 Indoor unit fan block motor trouble 4 9 Rise in high pressure caused by lowered condensing capacity in heating only...

Страница 79: ...n judging the refrig erant volume Check the indoor and outdoor unit op erating conditions Actually run the equipment in cooling or heating mode and check the operat ing condition Cooling Indoor LEV Ou...

Страница 80: ...and then enter into the ordinary operation state 2500 2502 2503 Leakage water abnormality Drain pump abnormality Drain sensor abnormality Operation of float switch When drain sensor detects flood ing...

Страница 81: ...if a wire is disconnected b Check the voltage between each of the wires Check 1 the connections 2 the con tact at the connector 3 the tightening torque at screw tightening locations and 4 for wiring...

Страница 82: ...Failure Judgment Methods To judge failure of the DCL go to Individual Parts Failure Judgment Methods If none of the items in 1 to 6 is applicable and if the trouble reappears even after the power is s...

Страница 83: ...compressor Check the compressor s insulation resistance Check the IPM Judge that the IPM is fauly Go to Individual Parts Failure Judgment Methods If none of the items in 1 to 8 is applicable and if th...

Страница 84: ...erter compressor is defec tive Is the unit s exhaust short cycling Clean the heat exchanger If the power supply voltage is less than 342 V it is outside specifications If the external air temperature...

Страница 85: ...ra ture TH6 Heat exchanger outlet pipe TH7 SC coil bypass outlet TH8 CS circuit TH9 Radiator panel TH HS Compres sor shell tempera ture TH10 Thermal sensor abnormality Outdoor Unit or Indoor Unit Same...

Страница 86: ...he INV board s SW1 1 is OFF Inverter error detail 6 2 If the current sensor ACCT miss wiring is detected during inverter operation Inverter error detail 13 1 Pressutre sensor trouble 2 Inner pressure...

Страница 87: ...r a unit which is also capable of using R407C 7130 Check code 6600 6602 Multiple address error Transmission from units with the same address is detected Note The address attribute shown on remote cont...

Страница 88: ...Check code 6602 6603 Meaning detecting method Cause Checking method Countermeasure Transmission line installed while turning power source on Check power source of indoor unit 220V 240V Shut off the po...

Страница 89: ...dress is changed or modified during operation 2 Faulty or slipping off of transmission wiring of IC 3 Slipping off of IC unit connector CN2M 4 Faulty IC unit controller 5 Faulty remote controller 1 Fa...

Страница 90: ...Capacity code setting error 7101 Connecting set number error 7102 Address setting error 7105 1 Cause of 1 3 of Cause for single refri gerant system 2 Slipping off or short circuit of transmission line...

Страница 91: ...N40 into OC unit transmission line for centralized control 3 Slipping off or power source shut down of power supply unit for transmission line 4 Faulty system controller MELANS Same cause as that for...

Страница 92: ...er shutdown of power sup ply unit for transmission line 4 Faulty MELANS 1 IC unit is keeping the memory of the original group setting with RC although the RC ad dress was changed later The same sympto...

Страница 93: ...detecting error 2 Repeating of transmission error due to noise 3 Damping of transmission line volt age signal due to exceeding of the acceptable range for transmission wiring Farthest Less than 200m...

Страница 94: ...con troller or indoor unit remote con troller wiring 2 All the remote controllers are set to Sub 3 Failure to meet wiring specifica tions 1 Wire length 2 Wire diameter 3 Number of remote controllers 4...

Страница 95: ...0 d Check for the model total capacity code total of indoor units connected Check that the address of OC unit is being set to 51 100 Reset the address if it stays out of the range while shutting the p...

Страница 96: ...e left Correct the problem if found b No voltage Check 1 on the left again Correct the problem if found If no problem is found with item 1 check Remote Display Line i e polarity of the relay If still...

Страница 97: ...A remote controller line No 2 is torn or disconnected from terminal board 3Faulty wiring among grouped units 4MA remote controller line is accidentally connected to TB5 5M NET transmission line is acc...

Страница 98: ...blinking at 20 sec intervals HO is displayed on the screen and cannot be turned off Can the remote controller be operated Normal including the display Centralized Control Go to the section on the err...

Страница 99: ...22 and BC B1 Apply voltage to AC A1 Short circuit CN51 1 and 2 on the controller board Can unit be turned on and off Replace the controller board Set DIPSW3 8 to ON Set DIPSW1 10 to OFF Set it to Norm...

Страница 100: ...r address signals Transmission wave patterns are changed Wave patterns are changed and become unrecognizable and the receiving end of the signal becomes unable to respond Un communicable state lasts d...

Страница 101: ...ayed the remote controller 4Indoor Unit Control Transmission shield line is grounded at the outdoor unit 5Check the shield for transmission line for centralized control Use one point grounding at outd...

Страница 102: ...heck loose connectors on the controller board of outdoor heat source unit Loose connectors found YES NO Check wiring inside outdoor heat source units G A terminal board Inverter board Faulty wiring YE...

Страница 103: ...he two pressures exceeds 0 098MPa High pressure 0 03MPa Low pressure the affected pressure sensor is faulty deteriorating performance c If the pressure reading in the LD1 display does not change the a...

Страница 104: ...d heating mode so check its operation by the LED display and the operating noise emitted by the solenoid valve b Changes in the operating condition by solenoid valve operation can be confirmed by the...

Страница 105: ...ns ON continuously the motor cannot run smoothly but move jerkily and vibrates When the power is switched ON a 520 pulse valve opening signal is output to make sure the valve s position so that it is...

Страница 106: ...t pulses change in the following orders when the Valve is Closed 1 2 3 4 1 Valve is Open 4 3 2 1 4 1 When the LEV opening angle does not change all the output phases are off 2 When the output is out o...

Страница 107: ...e thermistor liquid pipe temperature sensor will become low If the temperature is considerably low compared to the remote control s intake temperature display it can be judged that there is a fully cl...

Страница 108: ...be sure to fasten the body in such a way that it will not move Installing the Coils Fasten the body tightly at the bottom Part A in the figure so that the body will not move then insert the coils from...

Страница 109: ...15exp 3460 Rt 7 465exp 4057 Thermistor Ro 33k 1 TH2 Thermistor R50 17k 2 THHS Rt 33exp 3965 Rt 17exp 4170 50 40 30 20 10 0 20 10 10 20 30 40 50 0 25 20 15 10 5 0 90 100 110 120 1 273 t 1 273 t 1 273 t...

Страница 110: ...d wiring is being used properly in the necessary environment and that the shield wire ground is appropriate 1 Due to a large capacity electrolytic capacitor used in the inverter voltage still flows th...

Страница 111: ...utdoor unit after above steps Check the inverter output voltage It is recommend to use the tester used to determine the 7 1 3 5 IPM trouble shooting when checking the inverter output voltage Measure w...

Страница 112: ...n the case of an output voltage unbalance or error recurrence after replacement Replace the INV board 3Check the resistances be tween each terminal of IPM Refer to 7 1 3 5 for de tails on IPM troubles...

Страница 113: ...stance between terminals 1 or lower almost 0 Measure the resistance between terminals and the chassis Measure the resistance between terminals 0 1k 1 5k Measure the resistance value at each terminal D...

Страница 114: ...er Pre Driver Pre Driver Pre Driver Over heating Temperature sensor protection circuit 16 10 7 4 1 1 Focus on whether there is a complete open state or short circuit 0 The measured resistance value is...

Страница 115: ...insufficient tightening of screws is difficult to find tighten them together additionally after finishing other works For the wiring of the base for IPM observe the wiring diagram below care fully as...

Страница 116: ...lve COMP Compressor SW1 Outdoor unit control circuit board E Memory storage for service activities sampling per minute 7 seg LED The numerical display includes that of pressure temperature or the like...

Страница 117: ...TH10 error TH5 error LPS error TH6 error HPS error THHS error shell bottom error configura tion detec tion error Heat Sink thermostat operating over current break INV error refriger ant overfill cool...

Страница 118: ...error detail Inverter error detail 0001 0009 0000 9999 Error history 7 Inverter error detail Inverter error detail 0001 0009 0000 9999 Error history 8 Inverter error detail Inverter error detail 0001...

Страница 119: ...9 0 99 OC address 77 10110010 IC1 address capacity codes 78 01110010 79 11110010 80 00001010 81 10001010 82 01001010 83 11001010 84 00101010 85 10101010 60 00111100 OC 61 10111100 0 9 999 OC 62 011111...

Страница 120: ...lection cooling low pressure oil collection cooling high pressure oil collection Compres sor in op eration crank case heater SV1 SV2 101 10100110 102 01100110 103 11100110 104 00010110 105 10010110 10...

Страница 121: ...9 99 9 999 9 00000001 10000001 01000001 11000001 00100001 warm up mode Compres sor in operation 3 minute restart prelimi nary er ror error 134 01100001 135 11100001 136 00010001 137 10010001 138 01010...

Страница 122: ...00110101 10110101 01110101 11110101 177 10001101 178 01001101 179 11001101 180 00101101 181 10101101 182 01101101 183 11101101 184 00011101 185 10011101 186 01011101 187 11011101 188 00111101 99 9 999...

Страница 123: ...ling 01110011 208 00001011 209 10001011 210 01001011 211 11001011 212 00101011 213 10101011 214 01101011 215 11101011 216 00011011 217 10011011 218 01011011 219 11011011 220 00111011 221 10111011 222...

Страница 124: ...00101111 245 10101111 246 01101111 247 11101111 248 00011111 249 10011111 250 01011111 251 11011111 252 00111111 253 10111111 254 01111111 255 11111111 236 00110111 237 10110111 238 01110111 239 11110...

Страница 125: ...ide refrigerant circuit 2 Set the Normal Maintenance Switch of the indoor unit to Maintenance 3 While the unit is stopped set Slide SWA on the address board of No 2 side refrigerant circuit to 3 See N...

Страница 126: ...Outdoor unit will not start Normal display Do not install the unit in or around residential areas where noise levels are to be kept down Consult us if concerned about the effects of noise Place equipm...

Страница 127: ...er O S Low Pressure before MA MPa C No of Units Connected No of Units in Operation Model Type 4 4 Standard Operation reference data 1 Cooling Operation 2 Operation under Other Conditions 1 Changes in...

Страница 128: ...ON to test run all indoor units 2 Change the remote controller settings so that all indoor units run in cooling mode 3 Check that all indoor units are running in cooling mode 2 Check the Tc and TH7 da...

Страница 129: ...rrect any malfunc tions Note 3 Is the refrigerant composi tion of OC correct Note 2 Finished checking the composition Check that R407C is correctly charged Note 4 Recharge the refrigerant Note 5 Finis...

Страница 130: ...tly charged in the liquid phase continue to Yes If there is a possibility that it was not charged correctly such as with a gas charger continue to No Note 5 After reclaiming the system s refrigerant e...

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