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

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)
	DC 260-325 V		(C63)	(C62)	(C61)	T3.15 AL 250 V
	(-)	(+)		Fuse (F801)
AC 208/230 V
				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,
						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
																									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)
	100																										200
	90																										180
	80										700	Discharge temperature thermistor(RT62)															160
Resistance(kΩ)	70																									Resistance(kΩ)	140
											600
	60									Resistance(kΩ)																	120
	20										200																40
	50										500																100
	40										400																80
	30										300																60
	10										100																20
	0										0																0
		14	32	50		68	86		104																			50	68		86	104 122 140 158 176
	-4										32	50	68	86	104		122	140	158		176	194	212	230	248		32
			Temperature(°F)													Temperature(°F)														Temperature(°F)

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