Resistance of Temperature Sensor | Mitsubishi Electronics PURY-P400

[5] Resistance of Temperature Sensor

	Thermistor for low temperature
	Thermistor Ro= 15kΩ					±	3% (TH3 ~ 9)
	Rt = 15exp {3460 (				1		-		1		)}
	Rt = 15exp {3460 (				273+t		-		273+0		)}
	50


)	40









	30







(kΩ


Resistance	20








	10









	0








		–20	–10	0	10	20			30	40		50
		–20	–10	0	10	20			30	40		50
				Temperature (˚C)
	Thermistor Ro = 33kΩ					±		1% (TH2)
	Rt = 33exp {3965 (				1		-		1	)}
	Rt = 33exp {3965 (				273+t		-		273+0	)}

Resistance (kΩ )

Temperature (˚C)

	Thermistor R120 = 7.465kΩ						±		2% (TH1, 10)
	Rt = 7.465exp {4057 (				1		-	1			)}
	Rt = 7.465exp {4057 (			273+t			-	273+120			)}
				273+t				273+120
	25


)	20









	15








(kΩ


Resistance	10







	5









	0









	90		100					110			120
		Temperature (˚C)
	Thermistor R50 = 17kΩ				± 2% (THHS)
	Rt = 17exp {4170 (		1		-		1			)}
	Rt = 17exp {4170 (		273+t		-	273+50				)}

Resistance (kΩ )

Temperature (˚C)

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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 Do not use the existing refrigerant piping Be especially careful when managing the toolsUse liquid refrigerant to seal the system Use a vacuum pump with a reverse flow check valve Storage of Piping Material Reason Piping Machining Brazing When non-oxide brazing was usedItems to be strictly observed Reasons Vacuuming Airtightness TestR22 leakage detector Dryer Charging of RefrigerantCylinder color identification R407C-Gray R410A-Pink 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 Board Fancon boardCnpow Cnfan CNFC2 CNE CNDC1 SNB board Board Cntr BC controllerSW4 SW5 SW2 SW1 Earth Relay 10 board Relay 4 board SV8 SV7 ACC LEV3 SVM2 CMB-P108, 1010, 1013, 1016V-FAPS3 LEV1 SVM1 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 Cooling operation Standard Operation DataPURY-P400YMF-C PURY-P500YMF-C DB/WB Heating operation Function of Dip SW and Rotary SW Ture Power is on Defrosting end temperaSWU SW3 Indoor unit DIP SW1 SW2 settingP40 P50 P63 Model P71 P80 P100 P125 P140 SW4 220V 240VFunction Check points before test run Before Test RunConnected indoor units Can be connected without a RP Local remote controller displays code No Check points for test run when mounting optionsBuilt-in optional parts Insulation pipe Portion Check points for system structureNot heat at heating CN40 on the Main board when the system is centralized Error stop, compressor troubleTurn on power source 12 hours before starting operations? Example, 200m or less total length 500m at the farthest Warm or cold air is blowing out Test Run Method Filter + Switch functionControlled Test RUN Description of registration/deletion/retrieval Attribute display of unit Group registration of indoor unit Registration procedure Press the switch for confirmation E Operation procedureSwitch G for the interlocked setting mode. See figure below No registration Deletion completed Case of group re Press the switch for confirmation F twice continuously Deletion of address not existing Initial processing Control of Outdoor Unit 1- 1 PURY-P400·500 YMF-CControl at staring Compressor capacity control SV6a Bypass capacity controlStop OFF SV1 Defrosting control Oil return control Electronic expansion valve Slev Judgement and control of refrigerant amount Control of liquid level detecting heater Heat exchanger TH9 Four-way valveAccumulator CS circuit Outdoor unit heat exchanger capacity control 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 SVA, SVB and SVC Control of BC ControllerControl of SVM1 only FA type Control of LEV Outdoor unit Operation Flow ChartNormal operations Trouble observed Stop BC controller Operation No commandStart Normal operations Indoor unit Normal operations Test run Stop Cooling operationCooling operation Way valve OFF Indoor unit fan Operations Test run start Thermostat on Normal operations Defrosting operations Stop Test run Heating operation Thermostat on Dry operationThermostat on Inlet temp ˚C Same as those in cooling operations MC1 List of Major Component FunctionsMC2 TH4 TH3TH5 TH6 CH3 CH2 Resistance of Temperature Sensor Adjustment and Judgement of Refrigerant Amount Operating Characteristics and Refrigerant AmountLow temperature than overload Control system Temperature Symptom Additional Refrigerant Charge Volume Refrigerant VolumePURY-P400YMF-C PURY-P500YMF-C Procedure Refrigerant Volume Adjustment Mode OperationTH1 SC11 SC16 Adjustment starts YES Turn all of switches ReadjustSW1 OFF 18 kg 27 kg 31 kg Pipe Length Or less 60 ~ 90 m Principal Parts Connector GND Black Vout White Vcc DC5V RedPressure Sensor Judging Failure SW1 Solenoid Valve SV1~8LED SV3 SV4 SV5 SV6 Solenoid Valves Block1 SV8 CV7b Solenoid Valves BlockCV5b CV4b Check Valves Block1 Check Valves Block2 CV5b CV4b CV2b CV3bCheck Valves Block2 CV6b LEV Valve Closing and Valve Opening Operations Outdoor LEV Temperature is considerably low Temperature sensed by Thermistor liquid pipe temperatureCompared to the remote control’s Intake temperature display, it can Part a Diode stack Intelligent Power Module IPMTester ⊕ 10~50 Ω Tester After checking , if these are factors Check method and handlingCheck voltage between a and B NET transmission line break on the side of the room unit Power terminal block Voltage Verify the power Unit is removed PhenomenaMain board ----CNS1, CNVCC3 INV board----CNAC2, CNVCC1, CNL2 30V Check Procedure Case of M-NET remote controllerNo powering signal INV board CNS1, CNVCC3 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 Method ForwiringChecking Earthing If the problem is solved and you connect Disconnected wires should Insulation resistance 2MΩ or moreAgain, replace the compressor Vidual Parts Failure Judgment Methods TB1B~CNPOW, CNFAN~CN04~CNMF TB1A~NF~TB1B~CNTR1~T01~CNTRCNFAN~52F~CN05~CNMF CNFC1~CNFC2 IPM 20~60Ω AC Current sensor Acct A1-A2 Black Capacitor C2,C3 Board Red Motor Compressor Red White Black Pressure sensor Pressure sensor troubleshooting flow Troubleshooting the major components of the BC controllerStart OK? 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 Disconnect the connector before measurement SVM is turned on and off in accordance with operation modeSVM1 Normal Malfunction Service panel BC Controller Disassembly ProcedureControl Box Be careful when removing heavy parts Procedure Thermistor Liquid and gas piping temperature detection100 Ler panel TH11 TH12 CN10 TH15, TH16 CN11 LEV 101Solenoid Valve Coil LEV3 LEV1 102 103 CNRS2 CNRS3 MechanicalCNAC2 TB1B 105 LEV3 SVM BC 106SVM1 LEV3 LEV3 SVM SVA BC 107 LEV3 SVM 108SVA SV3~8 Slev 109 Once vacuum operation protection is 110Indoor and outdoor units by oper 2502 Drain pump TB1A~NF~TB1B~CNTR1~F3~ 111T01~CNTR VDC 112TB1A~NF~TB1B, TB1B~DS~52C MF1~CNFAN 113 114 TH HS 115Thhs TH5 TH8 CNDR2-CNDR1 116IPM-MC1 117 On, the wave shape is changed and the error is detected Error118 Communication/system 119 Checking method and processing ErrorTransmission circuit bus-busy er → Noise if existed, check the noise 120 Communication trouble between Faulty generating controller Remote No reply Faulty transmission wiring at IC unit side Shut down OC unit power source,Generating Display Detecting More, and make them again 122 123 124 125 System error 126 LED Monitor Display How to read LED for service monitor127 Comp LD1 LD2 LD3 LD4 LD5 LD6 LD7 LD8 128Comp COMP1 TH2 TH3 TH4 TH5 TH6 TH7 129 130 LD1 LD2 LD3 LD4 LD5 LD6 LD7 LD8 131 132 IC16SC 133 134 135 136 137 IC24SH 138 IC24SC 139 140 141 SC16 LED monitor switch Location of leaks Outdoor unit Cooling modeStop all indoor units and the compressor Check that all indoor units have been stopped Location of leaks Outdoor unit when heating 144 LPS 145 Service Handbook PURY-P400, P500YMF-C

Mitsubishi Electronics PURY-P400, P500YMF-C specifications Resistance of Temperature Sensor

Models: PURY-P400 P500YMF-C

[5] Resistance of Temperature Sensor

PURY-P400, P500YMF-C specifications