Mitsubishi Electronics MUZ-GE18NA Test Point Diagram and Voltage, Inverter P.C. board, Led Lev

Page 38

10-6. TEST POINT DIAGRAM AND VOLTAGE

1. Inverter P.C. board

MUZ-GE09NA MUZ-GE12NA MUZ-GE15NA MUY-GE09NA MUY-GE12NA MUY-GE15NA

		Bus-bar voltage		Smoothing	Smoothing	Smoothing
	Back side of unit	DB61		capacitor	capacitor	capacitor	Fuse (F701)
	Back side of unit	DC 260-325 V		(C63)	(C62)	(C61)	T3.15 AL 250 V
		DC 260-325 V		(C63)	(C62)	(C61)	T3.15 AL 250 V
		(-)	(+)		Fuse (F801)
	AC 208/230 V				Fuse (F801)
	AC 208/230 V				250 V 3.15 A		R.V.coil
					250 V 3.15 A		R.V.coil
							(CN721)
							208/230
							VAC
							(MUZ)
	Fuse (F901)
	T3.15 AL 250 V
	Output to
	drive
	compressor						AC 208/
	(LDU,						AC 208/
	(LDU,						230 V
	LDV,						230 V
	LDV,
	LDW)

								outdoordrivetoOutput (CN932)motorfan				temperatureFin thermistor/RT64 (CN642)				exchangerheatOutdoor thermistortemperature (CN644)/RT68			temperatureAmbient thermistor/RT65				(CN643)		thermistorDefrost (MUZ)/RT61(CN641)					temperatureDischarge thermistor/RT62 (CN641)					LED				LEV				Jumper wire for										Jumper wire
																																			LED				LEV				Jumper wire for										Jumper wire
																																							connector				changing defrost										for pre-heat
																																							(CN724)				setting (JS)(MUZ)										control setting
Front side of unit																																																					(JK)
	Defrost thermistor(RT61) (MUZ)
	Ambient temperature thermistor(RT65)																																								Fin temperature thermistor(RT64)
	Outdoor heat exchanger temperature thermistor(RT68)																																								Fin temperature thermistor(RT64)
	100																																								200
	100																																								200
	90																																								180
	90																																								180
	80															700	Discharge temperature thermistor(RT62)																								160
	80																																								160

Resistance(kΩ)	70																																							Resistance(kΩ)	140
	70															600																									140
	60														Resistance(kΩ)																										120


	20															200																									40
	50															500																									100
	40															400																									80
	30															300																									60


	10															100																									20


	0															0																									0
	0		14		32		50		68		86		104			0																									0		50		68		86		104 122 140 158 176
	-4		14		32		50		68		86		104			32	50		68		86		104		122		140		158		176		194		212		230		248		32		50		68		86		104 122 140 158 176
					Temperature(°F)																			Temperature(°F)																						Temperature(°F)
					Temperature(°F)																																									Temperature(°F)

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Contents Outdoor Unit Technical Changes Part Names and Functions Specification MUZ-GE09NA MUY-GE09NA MUZ-GE12NA MUY-GE12NAMUZ-GE15NA MUY-GE15NA MUZ-GE18NA MUY-GE18NA Refrigerant charge R410A Lb ozSeer Operating RangeARI HspfOutlines and Dimensions Unit inchWiring Diagram MUZ-GE15NA MUY-GE15NA MUZ-GE18NA MUY-GE18NA Ø3/8 GE12NA Refrigerant System DiagramLEV Ø1/2 GE15NAMUZ MUZ-GE09/12/15NA MUY-GE09/12/15NA GE15Data Performance DataMUZ-GE12NAMUZ-GE15NA MUY-GE12NAMUY-GE15NA Performance Curve CoolingMUZ-GE09NA MUY-GE09NA MUZ-GE09NA MUZ-GE12NA MUZ-GE18NA MUY-GE18NAHeating MUZ MUZ-GE15NA MUZ-GE18NAMUZ-GE15NA MUY-GE15NA Condensing Pressure CoolingMUZ-GE12NA MUY-GE12NA MUZ-GE09NA MUZ-GE15NA SHF Standard Operation DataMSZ-GE09NA MSZ-GE12NA MSY-GE09NA MSY-GE12NA MSZ-GE09NA, MSY-GE09NA MSZ-GE12NA, MSY-GE12NAMUZ-GE15NA MUZ-GE18NA MSZ-GE15NA MSZ-GE18NA MSY-GE15NA MSY-GE18NAMSZ-GE15NA, MSY-GE15NA MSZ-GE18NA, MSY-GE18NA MUZ-GE15NA MUZ-GE18NA MUY-GE15NA MUY-GE18NAHOW to Operate FIXED-FREQUENCY Operation Test run operation Correction of Cooling capacityR.V. Coil Control MUZ Actuator ControlOutdoor FAN Motor Control Relation Between Main Sensor and ActuatorChange in Defrost Setting MUZ Service FunctionsTroubleshooting PRE-HEAT Control SettingFailure Mode Recall Function Operational procedure Outdoor unit failure mode table LEDTroubleshooting Check Table GE09/12 GE15 GE18 Trouble Criterion of Main PartsGE09 GE12 GE15/18 Troubleshooting Flow How to check inverter/compressorCheck of open phase Check of compressorCheck of compressor start failure Check of compressor windingCheck of compressor operation time BLK WHT BLK RED WHT REDCheck of outdoor thermistors Unit operates Cool mode even if it is set to Heat modeUnit operates Heat mode even if it is set to Cool mode Check of R.V. coil MUZMUZ-GE09/12/15NA MUY-GE09/12/15NA Check of outdoor fan motorCheck of power supply Check of LEV Expansion valve Check of inverter P.C. board Emergency OperationHow to check miswiring and serial signal error Electromagnetic noise enters into TV sets or radios LED LEV Test Point Diagram and VoltageInverter P.C. board LED Disassembly Instructions Removing the cabinet PhotoPhoto Removing the discharge temperature thermistor Removing the inverter assembly, inverter P.C. board PhotoPhoto 4 Inverter assembly Removing R.V. coil MUZRemoving outdoor fan motor Photo Removing the compressor and 4-way valveMUZ-GE18NA MUY-GE18NA Operating Procedure Photos Removing R.V. coil Photo5Removing outdoor fan motor Page Page Made in Japan New publication, effective JulDistributed in Jul . No. OBH 549

MUZ-GE09NA, MUZ-GE15NA, MUY-GE15NA, MUZ-GE18NA, MUZ-GE12NA specifications

Mitsubishi Electronics offers a range of advanced air conditioning systems, including the MUY-GE12NA, MUY-GE18NA, MUY-GE09NA, MUZ-GE12NA, and MUZ-GE18NA models. These units are designed for optimal energy efficiency and superior comfort, making them ideal for residential and commercial applications.

One of the standout features of these models is their inverter technology. By adjusting the compressor speed according to the cooling or heating demand, inverter systems provide precise temperature control while significantly reducing energy consumption compared to traditional units. This not only translates to lower utility bills but also less environmental impact.

The MUY-GE series units come with a user-friendly remote control that allows for easy adjustments of temperature settings, fan speeds, and operational modes. Smart operation modes include cooling, heating, and dehumidification, thereby catering to various climate needs. The units also include a programmable timer, enabling users to set the air conditioner to operate at specific times, enhancing convenience and efficiency.

Another impressive characteristic is the advanced air filtration system. Mitsubishi integrates a multi-stage filtration mechanism that includes a washable pre-filter, a pleated filter, and a high-performance deodorizing filter. This ensures cleaner indoor air by effectively reducing allergens, dust, and odors, contributing to a healthier living space.

The sleek and modern design of these units also allows for easy installation and compatibility with various interior settings. The MUY-GE09NA, MUY-GE12NA, and MUY-GE18NA indoor units are designed to be compact and unobtrusive, while the outdoor units (MUZ series) are engineered for durability and quiet operation.

Noise levels are another critical aspect where Mitsubishi excels. These air conditioning systems operate quietly, making them suitable for bedrooms, offices, and other noise-sensitive environments. Their Whisper-Quiet technology ensures that sound levels during operation remain low, promoting a peaceful atmosphere.

Mitsubishi Electronics ensures customer satisfaction with robust support and warranty options, emphasizing quality and reliability. In summary, the MUY-GE12NA, MUY-GE18NA, MUY-GE09NA, MUZ-GE12NA, and MUZ-GE18NA models stand out for their energy-efficient inverter technology, user-friendly controls, advanced air filtration, sleek design, and quiet operation, making them a smart choice for modern cooling and heating needs.