Mitsubishi Electric CITY MULTI PQRY-P200YMF-B Especificaciones

AIR CONDITIONERS CITY MULTIModels PQRY-P200YMF-B, P250YMF-BCMB-P104, P105, P106, P108, P1010, P1013, P1016V-EService Handbook

–7–[7] Charging of RefrigerantR407C must be in a liquid state when charging, because it is a non-azeotropic refrigerant.For a cylinder with a syphon a

–97–Note 1 :• Board connector CN10 corresponds to TH11 through TH12, while connectorCN11 corresponds to TH15 through TH16. Remove the applicable conne

–98–3) LEV, solenoid valve troubleshooting flowNo coolingNo heatingCheck disconnection or loosenessof connectors.Is there a problem?Operate in cooling

–99–1 LEVNote 1 :• Symptoms of incorrect connection to BC controller LEV boardImproper installation is the same for 1 and 2, so it is omitted here.Not

–100–665432154321251346BrownRedBlueOrangeYellowWhiteBrownRedBlueOrangeYellowWhiteToLEV10kΩ LED(Self-diagnostic monitor)Measured data Signal Heat sourc

–101–2 Solenoid ValveChange thesolenoid valve.Change the controlboard.220-240V output?With the solenoid valve con-nector is disconnected from theboard

–102–1BASolenoid valves (SVA, SVB, SVC, SVM)Coordination signals output from the board and solenoid valve operations.Note 1 : (SVA, SVB, SVC)SVA, SVB

–103–[2] BC Controller Disassembly Procedure(1) Service panelBe careful on removing heavy parts.Procedure Photos & Illustrations1. Remove the two

–104–(2) Control boxBe careful on removing heavy parts.Procedure Photos<CMB-P104, 105, 106V-E>1. Removing the single screw that secures the elec

–105–(3) Thermistor (Liquid and gas piping temperature detection)Be careful when removing heavy parts.Procedure Photos1. Remove the service panel1 Use

–106–(5) LEVBe careful on removing heavy parts.Procedure Photos1. Remove the service panel. See (1)-1.2.3.4.2. Replace the applicable LEV.Important!1

–8–22222 COMPONENT OF EQUIPMENT[1] Appearance of ComponentsHeat source unitHeatexchangerControl BoxCVBlockDrierAccumulatorCompressorSVBlock4-wayValve

–107–Check code listCheck code Check content0403 Serial transmission abnormality0900 Trial operation1102 Discharge temperature abnormality1111 Low pre

–108–Check code Check content6606 Communications with transmission processor abnormality6607 No ACK abnormality6608 No response abnormality7100 Total

–109–Checking code Meaning, detecting method Cause Checking method & CountermeasureSerialtransmissionabnormality0403If serial transmission cannot

–110–Checking code Meaning, detecting method Cause Checking method & CountermeasureDischargetemperatureabnormality(Heat sourceunit)11021. When 140

–111–Checking code Meaning, detecting method Cause Checking method & CountermeasureLowpressuresaturationtempera-turesensorabnormal-ity (TH2)Liquid

–112–Checking code Meaning, detecting method Cause Checking method & Countermeasure13011302Low pressureabnoramlityHigh pressureabnoramlity 1(Heat

–113–1302150015011) Fall in internal press. caused bygas leak.2) Press. sensor trouble.3) Film breakage.4) Coming off of pin in connector por-tion, po

–114–Checking code Meaning, detecting method Cause Checking method & Countermeasure150520002134SuctionpressureabnormalityInterlockoperationAbnorma

–115–Checking code Meaning, detecting method Cause Checking method & Countermeasure21352500250225033152Freezing ofthe water heatexchanger.Leakage

–116–Checking code Meaning, detecting method Cause Checking method & Countermeasure41034115Reverse phaseabnormalityPower supplysync signalabnoraml

–9–Control BoxINV boardRELAYboardTransformer(T01)MAINboardTerminal block TB7Transmission (Centralized Control)Terminal block TB8UNIT ON/OFF,Pump inte

–117–Checking code Meaning, detecting method Cause Checking method & Countermeasure41164200Fan speedabnormality(motorabnoramlity)VDC·IDCsensor/cir

–118–Checking code Meaning, detecting method Cause Checking method & Countermeasure42104220Breaking ofovercurrentBus voltageabnormality1. If IDC

–119–Checking code Meaning, detecting method Cause Checking method & Countermeasure42304240Radiator paneloverheatprotectionOvercurrentprotectionIf

–120–Discharge(TH1)Lowpressuresaturation(TH2)Accumulaterliquid level(TH3)Accumulaterliquid level(TH4)Watertempera-ture (TH6)(THINV)CS circuit(TH9)Radi

–121–See Troubleshooting of pressuresensor.Check the contacts of CNCT on theINV board.Check the DCCT polarity.• With SW1-1 OFF, is the inverter’soutpu

–122–(2) Communication/systemCheckingcode66006602Multiple address errorTransmission from units with thesame address is detected.Note:The address/attri

–123–Transmission processor hardwareerrorTransmission circuit bus-busy er-ror1. Collision of data transmission:Transmission can not be per-formed for

–124–Checkingcode6606Meaning, detecting method Cause Checking method & Countermeasure1) Data is not properly transmitted dueto casual errouneous o

–125–Checkingcode6607Meaning, detecting methodNo ACK error When no ACK signal is detected in 6 continuous times with 30 second interval bytransmissio

–126–Checkingcode6607(continued)Meaning, detecting methodSystemcompo-sitionGeneratingunit addressDisplay oftroubleDetectingmethodCause Checking method

–10–MAIN boardCNTR CNVCC4 CNS1 CNS2 CN40 CN41CNVCC3CN51CN3DLD1Service LEDSW1SW2SWU1SWU2SW3SW4CN20Power sourcefor control (5V)Power sourcefor control1-

–127–Checkingcode6607(continued)Meaning, detecting methodSystemcompo-sitionGeneratingunit addressDisplay oftroubleDetectingmethodCause Checking method

–128–Checkingcode6607(continued)Meaning, detecting methodSystemcompo-sitionGeneratingunit addressDisplay oftroubleDetectingmethodCause Checking method

–129–1) Total capacity of indoor units in thesame refrigerant system exceedsthe following:2) Erroneous setting of OC model se-lector switch (SW3-10).1

–130–Checkingcode71027105710771117130Meaning, detecting method Cause Checking method & CountermeasureConnected unit count overAddress setting erro

–131–[4] LED Monitor Display(1) How to read LED for service monitorBy setting of DIP SW1-1 ~ 1-8, the unit operating condition can be observed with th

–132–E: E2 Contents stored in the E2PROM; M: Monitored by the IC through communications; E*: Stored in service memory.No SW1 Item Display Remarks12345

–133–No SW1 Item Display Remarks12345678910 LD1 LD2 LD3 LD4 LD5 LD6 LD7 LD8212223242526272829303132333435363738394041424344454647484950511010100000011

–134–No SW1 Item Display Remarks12345678910 LD1 LD2 LD3 LD4 LD5 LD6 LD7 LD8525354555657585960616263646566676869707172737475767778798081820010110000101

–135–When there is an error stop with No95-121,the data on error stops or the data immediately before the error postpone-ment stop, which is stored in

–136–No SW1 Item Display Remarks12345678910 LD1 LD2 LD3 LD4 LD5 LD6 LD7 LD8112113114115116117118119120121122123124125126127128129130131132133134135136

–11–INV boardCN3 CN2-1 CN2-2 CN2-3CNVDCCN52CCNFANCNAC2CNR CNRS2 SW1CNCTCN30VCNTHCNL2CNVCC1CNVCC2Power source1 L23 NPower supply (5V)Power supply1-2 30

–137–No SW1 Item Display Remarks12345678910 LD1 LD2 LD3 LD4 LD5 LD6 LD7 LD8140141142143144145146147148149150151152153154155156157158159160161162163164

–138–No SW1 Item Display Remarks12345678910 LD1 LD2 LD3 LD4 LD5 LD6 LD7 LD8166167168169170171172173174175176177178179180181182183184185186187188189190

–139–No SW1 Item Display Remarks12345678910 LD1 LD2 LD3 LD4 LD5 LD6 LD7 LD8200201202203204205206207208209210211212213214215216217218219220221222223224

–140–No SW1 Item Display Remarks12345678910 LD1 LD2 LD3 LD4 LD5 LD6 LD7 LD8229230231232233234235236237238239240241242243244245246247248249250251252253

–141–88888 PREPARATION, REPAIRS AND REFRIGERANT REFILLING WHEN REPAIRINGLEAKS[1] Location of leaks: Extension piping or indoor units (when cooling)1 A

–142–[3] Location of Leaks: Extension Piping or Indoor Units (Heating mode)1 Test run all indoor units in heating mode.1. With SW3-1 on the MAIN board

–143–99999 CHECK THE COMPOSITION OF THE REFRIGERANTYESYESYESYESYESNONONONONOStartTest run all indoor units.Is the refrigerantcomposition of αOCcorrect

–144–Note 1 Wait until the units stabilize as described in the refrigerant amount adjustment procedure in “Chapter 6”.Note 2 After the units are opera

–145–00000 DIFFERENCES BETWEEN THE PREVIOUS REFRIGERANT AND THE NEW RE-FRIGERANT[1] Chemical CharacteristicsThe new refrigerant (R407C) is a chemicall

–146–[3] Pressure CharacteristicsCompared to the previous refrigerant (R22), the pressure of the new refrigerant (R407C) is higher.Pressure (Gauge) R4

–12–RELAY board

–147–Contaminants is a general term for moisture, air, process oil, dirt, other refrigerants and other refrigerator oils, etc.CauseMixing with moistur

Service Handbook PQRY-P200YMF-B, P250YMF-BCMB-P104, P105, P106, P108, P1010, P1013, P1016V-EHEAD OFFICE MITSUBISHI DENKI BLDG. MARUNOUCHI TOKYO 100-00

–13–BC controllerCNTRCN02M-NETtransmissionCN03CN12Powersupply1 EARTH3 N5 LSW4 SW2 SW1BC board

–14–RELAY 10 boardRELAY 4 board

–15–[2] Refrigerant Circuit Diagram and Thermal Sensor : Solenoid valve : Orifice : Capillary : Check valv

–16–Valves BlockTH23TH21TH22LEVSVCSVASVBIndoorunits BC controllerCMB-P104V-EGas/liquid separatorPS1LEV1SVMPS3LEV3TH12TH11TH15TH16 : Solenoi

Contents1 PRECAUTIONS FOR DEVICES THAT USE R407C REFRIGERANT ... 1[1] Storage of Piping Material ...

–17–[3] Equipment Composition40LW-FA. Heat source unitPQRY-P200YMF-BB. BC controller Branch pipe kitCMY-Y102S-F CMY-Y102L-FD. Indoor unitCassette cei

–18–[4] Electrical Wiring Diagram• PQRY-P200·250YMF-B<ELECTRICAL WIRING DIAGRAM>Refer to the [6]the switch operations.L2SM2M1L11L3PER65243324112

–19–• PQRY-P200·250YMF-BSV1, SV24-way valveSolenoid valve (Discharge-suction bypass)21S4Aux. relayDischarge pipe temp. detectSaturation evapo. temp. d

–20–Symbol explanationPE321321EARTHTerminal block(for Transmission)TB02Terminal block(for power source)TB01Note:TB02 is terminal block for transmissio

–21–• CMB-P105V-ESymbol explanationPE321321EARTHTerminal block(for Transmission)TB02Terminal block(for power source)TB01Note:TB02 is terminal block fo

–22–• CMB-P106V-EPE321321EARTHNote:TB02 is terminal block for transmission. Never connect power line to it.Transmission lineShield wire /N 220V

–23–• CMB-P108V-EPE321321EARTH}Power source}}LNPower source /N 220V 240V 50HzNote:TB02 is terminal block for transmission. Never connect pow

–24–• CMB-P1010V-EPE321321EARTH}Power source}}LNPower source /N 220V 240V 50HzNote:TB02 is terminal block for transmission. Never connect po

–25–• CMB-P1013V-EPEEARTH123123TB02TB01NameSymbolTerminal block(for Transmission)Solenoid valveSolenoid valveSolenoid valveSolenoid valveTerminal bloc

–26–• CMB-P1016V-EPEEARTH123123TB02TB01NameSymbolTerminal block(for Transmission)Solenoid valveSolenoid valveSolenoid valveSolenoid valveTerminal bloc

Safety precautionsBefore installation and electric workBefore installing the unit, make sure you read allthe “Safety precautions”.The “Safety precauti

–27–[5] Standard Operation Data1 Cooling operationHeat source unitItemsPQRY-P200YMF-B PQRY-P250YMF-BIndoorQuantityQuantity in operationModelMain pipeB

–28–2 Heating operationHeat source unitItemsPQRY-P200YMF-B PQRY-P250YMF-BIndoorQuantityQuantity in operationModelMain pipeBranch pipeTotal piping leng

–29–Changes as shown below by on → off change0% → 3% → 6% → 9% → 12% → –6% → –3% → 0%Before power is turned on.During normal operation when poweris on

–30–(2) Indoor unitDIP SW1, 3Note 1: The shaded part indicates the setting at factory shipment. (For the SW not being shaded, refer to th

–31–Setting of DIP SW4 Setting of DIP SW5Model Circuit board usedSW41234ON OFF ON OFF––––ON OFF ON OFFOFF OFF OFF ONON OFF OFF ONOFF ON OFF ONOFF OFF

–32–[7] External Input/Output Specifications(1) Output1 Operation ON signalTerminal No. TB8-1, 2Output Relay contacts output Rated voltage: L1 - N: 22

–33–33333 TEST RUN[1] Before Test Run(1) Check points before test runNeither refrigerant leak nor loose power source/ transmission lines should be fou

–34–(3) Check points for test run when mounting options(4) Attention for mounting drain water lifting-up mechanismCheck pointLocal remote controller d

–35–

–36–Check itemInstruction for selecting combination of heat sourceunit, and indoor unit followed? (Maximum number ofindoor units which can be connecte

–1–11111 PRECAUTIONS FOR DEVICES THAT USE R407C REFRIGERANTCautionDo not use the existing refrigerant piping.• The old refrigerant and refrigerator oi

–37–ClassificationTransmissionlineSystem setBefore startingPortion Check item1Limitation of transmission line length followed? Forexample, 200m or le

–38–UnitIndoor unitHeat source unitBC controllerRemote controller(Main)Remote controller(Sub)MJ-103Fresh MasterLossnay unitIndoor unitHeat source unit

–39–2 Branch number switch (Indoor Units and Fresh Master)Match the indoor unit’s refrigerant pipe with the BC controller’s end connection number.When

–40–Range01~5001~50101~150Note 1151~200Note 151~100Note 251~100Note 2SettingSmallest address amongseveral indoor units thatform a single group.Address

–41–5551TB7TB7TB3TB3010807 06 0502 03 04103101107CN40CN41Indoor unitChangeIndoor unit Indoor unit Indoor unitIn series with ventilationIndoor unit Ind

–42–104 1050504 06201201GRTB7TB354TB7TB351101 10301 02 03GRCN40CN41Indoor unitIndoor unit Indoor unit Indoor unitWhere a group remote controller iscon

–43–[3] Test Run MethodOperation procedure1Turn on universal power supply at least 12 hours before getting started → Displaying “HO” on display panel

–44–44444 GROUPING REGISTRATION OF INDOOR UNITS WITH REMOTE CONTROLLER(1) Switch function• The switch operation to register with the remote controller

–45–(2) Attribute display of unit• At the group registration and the confirmation/deletion of registration/connection information, the type (attribute

–46–(3) Group registration of indoor unit1) Registration method• Group registration of indoor unit ...

–2–[1] Storage of Piping Material(1) Storage locationStore the pipes to be used indoors. (Warehouse at site or owner’s warehouse)Storing them outdoors

–47–2) Method of retrieval/confirmation• Retrieval/confirmation of group registration information on indoor unit ... 2The address of the

–48–3) Method of deletion• Deletion of group registration information of indoor unit ... 4[Operation procedure]1 Wi

–49–4) Deletion of information on address not existing• Deletion of information on address not existing ...

–50–55555 CONTROL[1] Control of Heat Source Unit(1) Initial processing• When turning on power source, initial processing of microcomputer is given top

–51–▼1.5kg/cm2G 2.5kg/cm2G(0.15MPa) (0.25MPa)▼20kg/cm2G 27kg/cm2G(1.96MPa) (2.65MPa)▼▼ONOFFONOFF2) Pressure limitThe upper limit of high pressure (Pd)

–52–(7) Judgement and control of refrigerant amountJudge refrigerant amount by detecting refrigerant liquid surface accumulator.1) Judgement of accumu

–53–ModeHeat Exchanger SwitchingRemarksSV3 SV4 SV5 SV6 SV71 SV72 SV73Cooling-only × ××× ××××× ×××××× ×××××× × × 8 HP only× ×× ×××10 HP only× ×× × × 10

–54–[2] Control box cooling systemIn PQRY, in order to cool the parts in the control box which emit heat, a refrigerant evaporator has been placed int

–55–[3] Control of BC Controller(1) Control of SVA, SVB and SVCSVA, SVB and SVC are turned on and off depending on connection mode.Cooling Heating Sto

–56–YESNOYESNOYESYESNONONormal operationsTrouble observedStopStartBreakerturned onSet indoor ad-dress No. to remotecontrollerOperationcommandOperation

–3–[2] Piping MachiningUse ester oil, ether oil or alkylbenzene (small amount) as the refrigerator oil to coat flares and flange connections.Use only

–57–(2) BC controllerNote : 1 Two error modes include indoor unit side trouble, BC controller trouble, and heat source unit side trouble. In the case

–58–YESNOYESNOYESNOYESNOYESNOYESNOYESNOYESNONormal operationsTrouble observedStopStartBreakerturned onOperation SWturned on1. Protection functionself-

–59–YESNOYESYESNONO(4) Cooling operation1. Inverter output 0Hz2. Indoor unit LEV, oil return LEV(SLEV), INV cooling LEV (LEV2)fully closed3. Solenoid

–60–YESNOYESYESNONONO(5) Heating operationNormal operationsStopTest run1. Indoor unit fan very low speedoperations2. Inverter output 0Hz3. Indoor un

–61–YESNOYESYESNO(6) Dry operationNormal operationsThermostat ONStop1. Indoor unit fan stop2. Inverter output 0Hz3. Indoor unit LEV, oil return LEV(S

–62–Low pressure shell scroll type withcapacity control mechanismWinding resistance:Each phase 0.388Ω (20˚C)Setting 30kg/cm2G (2.94MPa)OFFR120=7.465kΩ

–63–Name Symbol (function) Application Specification Check methodHeat source unitThermistorSolenoidvalveLinearexpansionvalveLiquid leveldetectionheate

–64–R0=15kΩB0/100=3460Rt =15exp{3460( - )}0˚C : 15kΩ10˚C : 9.7kΩ20˚C : 6.4kΩ25˚C : 5.3kΩ30˚C : 4.3kΩ40˚C : 3.1kΩAC 220~240VOpen wh

–65–[6] Resistance of Temperature SensorThermistor for low temperatureThermistor Ro= 15kΩ ± 3% (TH3 ~ 9, THINV) Thermistor R120 = 7.465kΩ ± 2% (TH1, 1

–66–66666 REFRIGERANT AMOUNT ADJUSTMENTClarify relationship between the refrigerant amount and operating characteristics of CITY MULTI, and perform se

–4–[3] Necessary Apparatus and Materials and Notes on Their HandlingThe following tools should be marked as dedicated tools for R407C.<<Comparis

–67–JudgmentNormal if the resistance is 2 kΩ ± 5%.Normal if AC 198~264 V is outputtogether with the LED lighting.JudgementRefrigerant volume tends tow

–68–3 Check the refrigerant volume by self-diagnosis using the LED.Set the self-diagnosis switch (SW1) as shown below and check the past information (

–69–(3) Refrigerant amount adjustment mode operations1) ProcedureFollow the procedure shown below when needs to additionally replenish or discharge re

–70–YESNO2) Refrigerant adjustment in cooling season1 Flow chartCooling operations of all indoor unitsin test run mode.After compressor start, turn on

–71–2 Additional replenishment amount and discharge amount of refrigerantTable-1 PQRY-P250YMF-B (In case total capacity code is 40 or more and display

–72–3 Time required for recovering refrigerant from low pressure service port (minute)3.5~4.5 4.5~5.5 5.5 ~ 7.5(0.34~0.44) (0.44~0.54) (0.54~0.74)1 4.

–73–3) Refrigerant adjustment in heating season1 Flow chartYESNO* Valid for only 2 hours in the test run mode. All work must therefore be carried out

–74–Note :1. Be sure to operate all indoor units because refrigerant is accumulated in stopped unit. Change mode to test runmode for preventing stabil

–75–77777 TROUBLESHOOTING[1] Principal PartsPressure sensor(1) Judging failure1) Check for failure by comparing the sensing pressure according to the

–76–* Connector connection specifications on the pressure sensor body side.The connector’s pin numbers on the pressure sensor body side differ from th

–5–[4] BrazingNo changes from the conventional method, but special care is required so that foreign matter (ie. oxide scale, water, dirt,etc.) does no

–77–(d) The refrigerant flow is as following figure. Hot gas (high pressured) flows in cooling mode and cool gas/liquid(low pressured) flows in heatin

–78–LEV for heat source unitThe valve opening angle changes in proportion to the number of pulses.(Connections between the heat source unit’s MAIN boa

–79–LEV for BC controller and indoor unit1 LEV receives pulse signal from microcomputer, and operates valve with stepping motor.2 Valve opening change

–80–1 Disconnect the control board connector and connectthe check LED as shown in the figure below.When the base power supply is turned on, the indoor

–81–Heat source LEV (SLEV) coil removal procedure (configuration)As shown in the figure, the heat source LEV is made in such a way that the coils and

–82–Check valves block (PURY-P200·250YMF-B)The refrigerant flow in the pipe 6, 7, 8 and 9 are depend on ON/OFF of the SV3, 4, 5 and 6.Please confirm b

–83–Power transistorMeasure resistances between each terminal of transistor module with tester, and use the results for troubleshooting.Specified resi

–84–(5) Trouble and remedy of remote controllerSymptom Cause Checking method & countermeasure12Despite pressing ofremote controllerswitch, operati

–85–Symptom Cause3 “HO” display on re-mote controller doesnot disappear andswitch is ineffective.(Without using MELANS)1) Heat source unit address is

–86–Symptom Cause Checking method & countermeasure4 “88” appears on re-mote controller at theregistration andaccess remotecontrollera) Confirm the

–6–[5] Airtightness TestNo changes from the conventional method. Note that a refrigerant leakage detector for R22 cannot detect R407Cleakage.Halide to

–87–Transmission power circuit (30 V) check procedureIf “” is not displayed by the remote control, investigate the points of the trouble by the follow

–88–(6) Investigation of transmission wave shape/noiseControl is performed by exchanging signals between heat source unit, indoor unit and remote cont

–89–3) Checking and measures to be taken(a) Measures against noiseCheck the items below when noise can be confirmed on wave shape or the error code in

–90–4) Treatment of inverter and compressor troublesIf the compressor does not work when error codes 4210, 4240, 4310 or 4340 are detected, determine

–91–5) Troubleshooting at breaker trippingCheck items Measures to be taken 1 Check the breaker capacity. 2 Check the a short circuit or grounding in t

–92–6) Individual parts failure judgment methods.Part name Judgment methodDiode Stack (DS) Refer to “Judging Diode Stack Failure.”Transistor Module (T

–93–

–94–(8) Troubleshooting the major components of the BC controller1) Pressure sensorPressure sensor troubleshooting flowCheck on the LED monitor dis-pl

–95–Note 1 :• Symptoms of incorrect connection of BC controller pressure sensor to the boardNote 2 :• Check using LED monitor display switch (heat sou

–96–2) Temperature sensorThermistor troubleshooting flowStartDisconnect applicable thermistorconnector from the board.Measure temperature of applicabl