101, Lev, Solenoid Valve Coil | Mitsubishi Electronics PURY-P400

(5) LEV

Be careful on removing heavy parts.

Procedure

Photos

1.Remove the service panel. See (1)-1.2.3

2.Replace the applicable LEV.

Important!

1When performing the above procedure, be sure to allow for enough service space in the ceiling area for welding.

2When conditions require, the unit can be lowered from the ceiling before starting work.

(6)Solenoid Valve Coil

Procedure

Photos

1.Remove the service panel. See (1)-1.2.3

2.Disconnect the connector of the applicable solenoid valve.

3.Remove the solenoid valve coil.

1 SVA, SVB, and SVM1, 2 solenoid valve coils can be serviced from the maintenance port. SVC can serviced from the back if service space is available in the back. To remove the back panel, remove the four screws that secure it.

LEV3

LEV1

Solenoid valve

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PURY-P400, P500YMF-C specifications

Mitsubishi Electronics has long been a leader in the HVAC industry, known for its innovative technology and reliable performance. Among its notable offerings are the P500YMF-C and PURY-P400 models, designed to address the diverse needs of commercial and residential applications.

The Mitsubishi P500YMF-C is a high-performance outdoor unit that showcases energy efficiency and advanced refrigerant technology. It employs a sophisticated inverter-driven compressor, which optimizes energy usage by adjusting its speed based on the specific heating and cooling demands of the environment. This flexibility helps to minimize energy consumption while ensuring optimal comfort.

One of the standout features of the P500YMF-C is its ability to provide consistent heating and cooling even in extreme outdoor temperatures. The unit can operate effectively in low-temperature conditions, making it ideal for regions with harsh winters. Furthermore, the system is designed with a robust build, ensuring durability and longevity.

On the other hand, the PURY-P400 is an indoor multi-split system that complements the outdoor unit perfectly. It's designed for versatility and efficiency, capable of accommodating multiple indoor units connected to a single outdoor unit. This feature is particularly beneficial for larger spaces or buildings where different zones require individual climate control.

The PURY-P400 incorporates Mitsubishi's advanced filtration technology, which significantly improves indoor air quality. It features a multi-layer filtration system that effectively removes dust, allergens, and other particulates from the air, ensuring a healthier environment for occupants.

Both systems utilize R-32 refrigerant, which has a lower global warming potential compared to traditional refrigerants. This not only makes them more eco-friendly but also complies with emerging environmental regulations. The ease of installation and operation of these units is another noteworthy characteristic, with intuitive controls and user-friendly interfaces that facilitate seamless integration into existing systems.

In summary, the Mitsubishi P500YMF-C and PURY-P400 represent a fusion of technology, efficiency, and user-centric design. With a range of features aimed at enhancing performance and environmental sustainability, these models are an excellent choice for anyone looking to invest in a reliable and efficient HVAC system. Whether for residential or commercial use, Mitsubishi’s offerings continue to set the standard in comfort and efficiency.

Contents

Service Handbook Page Contents Carefully read the labels affixed to the main unit Safety precautions Use a vacuum pump with a reverse flow check valve Be especially careful when managing the toolsDo not use the existing refrigerant piping Use liquid refrigerant to seal the system Storage of Piping Material Reason Piping Machining Reasons When non-oxide brazing was usedBrazing Items to be strictly observed Vacuuming Airtightness TestR22 leakage detector R410A-Pink Charging of RefrigerantDryer Cylinder color identification R407C-Gray Outdoor unit PURY-P400·500YMF-C Appearance of ComponentsP400 Type P500 Type 51C2 Module IPM Board Controller BoxNoise filter Magnetic contactor 52C1 Capacitor C2, C3 52F Puhy / Pury Main board INV board CNE CNDC1 Fancon boardBoard Cnpow Cnfan CNFC2 SNB board Board Earth BC controllerCntr SW4 SW5 SW2 SW1 Relay 10 board Relay 4 board SV8 SV7 ACC LEV1 SVM1 CMB-P108, 1010, 1013, 1016V-FALEV3 SVM2 PS3 TH25 LEV3aTH22 PURY-P400·500YMF-C Electrical Wiring Diagram SV7B SV7A SV7C SV8B SV8A SV8C CMB-P108·1010V-FA CMB-P1013·1016V-FA Symbol LEV3 CMB-P108V-FB DB/WB Standard Operation DataCooling operation PURY-P400YMF-C PURY-P500YMF-C Heating operation SW3 Ture Power is on Defrosting end temperaFunction of Dip SW and Rotary SW SWU Model P71 P80 P100 P125 P140 SW2 settingIndoor unit DIP SW1 P40 P50 P63 SW4 220V 240VFunction Check points before test run Before Test RunConnected indoor units Can be connected without a RP Insulation pipe Check points for test run when mounting optionsLocal remote controller displays code No Built-in optional parts Portion Check points for system structureNot heat at heating Example, 200m or less total length 500m at the farthest Error stop, compressor troubleCN40 on the Main board when the system is centralized Turn on power source 12 hours before starting operations? Warm or cold air is blowing out Test Run Method Test RUN Switch functionFilter + Controlled Description of registration/deletion/retrieval Attribute display of unit Group registration of indoor unit Registration procedure No registration Operation procedurePress the switch for confirmation E Switch G for the interlocked setting mode. See figure below Deletion completed Case of group re Press the switch for confirmation F twice continuously Deletion of address not existing Compressor capacity control Control of Outdoor Unit 1- 1 PURY-P400·500 YMF-CInitial processing Control at staring OFF Bypass capacity controlSV6a Stop SV1 Defrosting control Oil return control Electronic expansion valve Slev Judgement and control of refrigerant amount Control of liquid level detecting heater Outdoor unit heat exchanger capacity control Four-way valveHeat exchanger TH9 Accumulator CS circuit Control at initial starting Start of initial operation mode Step End of initial operation mode 5 minutes Example Initial start control timing chartExample Minutes 400 500 No Compressor Failure 48 % 65 % Emergency response operating mode Control of LEV Control of BC ControllerControl of SVA, SVB and SVC Control of SVM1 only FA type Outdoor unit Operation Flow ChartNormal operations Trouble observed Stop Normal operations Operation No commandBC controller Start Indoor unit Test run start Thermostat on Cooling operationNormal operations Test run Stop Cooling operation Way valve OFF Indoor unit fan Operations Normal operations Defrosting operations Stop Test run Heating operation Same as those in cooling operations Dry operationThermostat on Thermostat on Inlet temp ˚C MC1 List of Major Component FunctionsMC2 TH6 TH3TH4 TH5 CH3 CH2 Resistance of Temperature Sensor Symptom Operating Characteristics and Refrigerant AmountAdjustment and Judgement of Refrigerant Amount Low temperature than overload Control system Temperature Additional Refrigerant Charge Volume Refrigerant VolumePURY-P400YMF-C PURY-P500YMF-C SC11 SC16 Refrigerant Volume Adjustment Mode OperationProcedure TH1 Adjustment starts YES Turn all of switches ReadjustSW1 OFF 18 kg 27 kg 31 kg Pipe Length Or less 60 ~ 90 m Judging Failure Connector GND Black Vout White Vcc DC5V RedPrincipal Parts Pressure Sensor SV3 SV4 SV5 SV6 Solenoid Valve SV1~8SW1 LED Solenoid Valves Block1 CV4b Solenoid Valves BlockSV8 CV7b CV5b Check Valves Block1 CV6b CV5b CV4b CV2b CV3bCheck Valves Block2 Check Valves Block2 LEV Valve Closing and Valve Opening Operations Outdoor LEV Intake temperature display, it can Temperature sensed by Thermistor liquid pipe temperatureTemperature is considerably low Compared to the remote control’s Part a 10~50 Ω Tester Intelligent Power Module IPMDiode stack Tester ⊕ NET transmission line break on the side of the room unit Check method and handlingAfter checking , if these are factors Check voltage between a and B Power terminal block Voltage Verify the power INV board----CNAC2, CNVCC1, CNL2 PhenomenaUnit is removed Main board ----CNS1, CNVCC3 CNS1, CNVCC3 Case of M-NET remote controller30V Check Procedure No powering signal INV board Checking method & countermeasure Case Melans is not used Transmission line Wiring miss Door unit M-NET 17 ~ 30V? Normal in case of 10V ~ Melans CNR, CNAC2 Investigation of transmission wave shape/noise Earthing ForwiringMethod Checking Vidual Parts Failure Judgment Methods Disconnected wires should Insulation resistance 2MΩ or moreIf the problem is solved and you connect Again, replace the compressor CNFC1~CNFC2 TB1A~NF~TB1B~CNTR1~T01~CNTRTB1B~CNPOW, CNFAN~CN04~CNMF CNFAN~52F~CN05~CNMF IPM 20~60Ω AC Current sensor Acct A1-A2 Black Capacitor C2,C3 Board Red Motor Compressor Red White Black OK? Troubleshooting the major components of the BC controllerPressure sensor Pressure sensor troubleshooting flow Start HPS Problem No abnormality Temperature Sensor Thermistor troubleshooting flow Temperature ˚C Temperature sensor resistance graphResistance value Thermistor R o=15 k Ω Rt=15exp 273+t LEV, Solenoid Valve Troubleshooting Flow LEV Output superheat BC controller Subcool Solenoid Valve Troubleshooting FlowIntermediate subcool BC controller liquid Solenoid Valve Normal Malfunction SVM is turned on and off in accordance with operation modeDisconnect the connector before measurement SVM1 Service panel BC Controller Disassembly ProcedureControl Box Ler panel TH11 TH12 CN10 TH15, TH16 CN11 Thermistor Liquid and gas piping temperature detectionBe careful when removing heavy parts Procedure 100 LEV3 LEV1 101LEV Solenoid Valve Coil 102 103 CNRS2 CNRS3 MechanicalCNAC2 TB1B 105 LEV3 SVM BC 106SVM1 LEV3 LEV3 SVM SVA BC 107 LEV3 SVM 108SVA SV3~8 Slev 109 2502 Drain pump 110Once vacuum operation protection is Indoor and outdoor units by oper TB1A~NF~TB1B~CNTR1~F3~ 111T01~CNTR VDC 112TB1A~NF~TB1B, TB1B~DS~52C MF1~CNFAN 113 114 TH8 115TH HS Thhs TH5 CNDR2-CNDR1 116IPM-MC1 117 Communication/system ErrorOn, the wave shape is changed and the error is detected 118 → Noise if existed, check the noise Checking method and processing Error119 Transmission circuit bus-busy er 120 Communication trouble between Faulty generating controller More, and make them again Shut down OC unit power source,Remote No reply Faulty transmission wiring at IC unit side Generating Display Detecting 122 123 124 125 System error 126 Comp How to read LED for service monitorLED Monitor Display 127 TH2 TH3 TH4 TH5 TH6 TH7 128LD1 LD2 LD3 LD4 LD5 LD6 LD7 LD8 Comp COMP1 129 130 LD1 LD2 LD3 LD4 LD5 LD6 LD7 LD8 131 132 IC16SC 133 134 135 136 137 IC24SH 138 IC24SC 139 140 141 Check that all indoor units have been stopped Location of leaks Outdoor unit Cooling modeSC16 LED monitor switch Stop all indoor units and the compressor Location of leaks Outdoor unit when heating 144 LPS 145 Service Handbook PURY-P400, P500YMF-C

Mitsubishi Electronics PURY-P400, P500YMF-C specifications 101, Lev, Solenoid Valve Coil, LEV3 LEV1

Models: PURY-P400 P500YMF-C