Panasonic service manual Outdoor Unit CU-4KS31NBU

Outdoor Unit CU-4KS31NBU

Control PCB
	Part No.				CB-CU-4KS31NBU
	Controls				Microprocessor
	Control Circuit Fuse				250V 25A
Compressor
	Type				DC Twin Rotary (Hermetic)
	Compressor Model / Nominal Output				5JD420XAB22 / 3,000W
	Compressor Oil ... Amount		Pints (cc)		FV50S ... 2.55 (1,200)
	Coil Resistance (Ambient Temp. 68 °F (20 °C)) Ohm				U - V : 0.435
					V - W : 0.441
					W - U : 0.452
	Safety Device
		CT (Peak current cut-off control)			Yes
		Compressor Discharge Temp. Control			Yes
		Operation cut-off control in abnormal ambient Temp.			Yes
		Overload Relay		Model	CS-7L-2515
			Operation Temp.		Open : 239 °F (115 °C), Close : 212 °F (100 °C)
	Run Capacitor			Micro F	-
				VAC	-
	Crankcase Heater				230V 30W
Fan
	Type				Propeller
	Q'ty ... Dia.		inch (mm)		1 ... D18-1/8 (D460)
Fan Motor
	Type				DC Motor
	Model ... Q'ty				SIC-71FW-D490-1 ... 1
	No. of Poles				8
	Rough Measure RPM (Cool)				800
	Nominal Output			W	90
	Coil Resistance			Ohm
	(Ambient Temp. 68 °F (20 °C))				-
	Safety Device
		Type			Internal Controller
		Over-Current Protection			Yes
		Over-Heat Protection			Yes
	Run Capacitor			Micro F	-
				VAC	-
Heat Exchanger Coil
	Coil				Aluminum Plate Fin / Copper Tube
	Rows				2
	Fins per inch				18.1
	Face Area			ft2 (m2)	7.75 (0.72)
External Finish					Acrylic baked-on enamel finish

DATA SUBJECT TO CHANGE WITHOUT NOTICE.

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