Panasonic CU-5E36QBU service manual Wiring, Electronic Controller Noise Filter

Resistance of Compressor Windings

6.

CONTROL BOARD

Y/G

CONNECTION	5KD240XAL21 (Ω)
U - V	0.72
U - W	0.73
V - W	0.71

Wiring

		BL
POWER SUPPLY	L1
		W
SINGLE PHASE	L2
AC 208/230V
60Hz

G	G
CONTROL BOARD
FG1	FG2	DCP	DCN

REACTOR GRY	BL
R

TERMINAL BOARD
	BL W
TERMINAL BOARD
A	1
UNIT
	2
TO INDOOR
	3
	BL W
B	1
UNIT
	2
INDOOR
	3

ACN1 (GREEN)	(GREEN)	(RED) (BLACK)	CN-WHT
(WHITE)			(WHITE)	W
	NOISE FILTER
ACL1
(BLACK)	CIRCUIT	CN-BLK (BLACK)		BL

	FUSE 401			RAT2 (GRAY)	GRY
	(30A 250V)			AC1
			RECTIFICATION	(BROWN)	BR
R				AC2 (BLUE)	B
	1		CIRCUIT
B				1	W
	3		COMMUNICATION
BR		CN-COM (WHITE)		DATA WHITE	W
	9				W
Y	5		CIRCUIT		W
ORG				)	W
	7				W
			ELECTRONIC CONTROLLER	CN- (	W
			(NOISE FILTER)		W
				9	W

AC-WHT

(WHITE)

AC-BLK (BLACK)

RY-PWR

AC2

(BLUE) 1

CN-DATA (WHITE)

9

RAT1

(GRAY)

DCP	DCN	AC1
(RED)	(BLACK)	(BROWN)
			Q10	U (RED) U		R	COMPRESSOR
SMOOTHING			P				R
				V (BLUE) V		B	B	MS
CAPACITOR
		FUSE 1	N	W	W	Y	Y	3~
					(YELLOW)
		(T3.15A				CONNECTOR
		L250V)		1	R	WHITE

PFC		4	B	M
CAPACITOR	CN-FM1		BR
			W
	(WHITE)	7	ORG	FAN MOTOR
PFC		1	R
CIRCUIT	CN-PSW1
	(BLUE) 2		R HIGH PRESSURE SW.

Connection Diagram

12

TO	BL W
C	1
UNIT
	2
TO INDOOR
	3
	BL
D	1
UNIT
	2
TO INDOOR
	3
	BL W
E	1
UNIT
	2
TO INDOOR
	3

W

ELECTRONIC	1	W	1
CONTROLLER		W
		W	DISP1-CN (WHITE)
DISP1-CN	(WHITE)
		W
(DISPLAY)		W
JP1		W
COOL ONLY		W
POWER SAVE		W	8

W1

PRIORITY MODE		W	-CNDISP2 (WHITE)
PUMP DOWN		W
		W
		W
	14	W	6
OPERATION TEST
	1	W	1
NMODE1-CN	(WHITE)	W	NMODE-CN (YELLOW)
WIRING CHECK		W
		W
		W
		W
	7	W	7
			CN-HOT
			1 (BLUE)	RY-HOT
ELECTRO MAGNETIC			3
COIL (4-WAY VALVE)			1	RY-HT

FUSE 2 (T3.15A L250V)

RECTIFICATION

CIRCUIT

SWITCHING

POWER SUPPLY

CIRCUIT

ELECTRONIC CONTROLLER (MAIN)

1	t	LIQUID PIPE TEMP. SENSOR
		(UNIT A) (THERMISTOR)
CN-TH3	t	LIQUID PIPE TEMP. SENSOR
		(UNIT B) (THERMISTOR)
(WHITE)	t	LIQUID PIPE TEMP. SENSOR
		(UNIT C) (THERMISTOR)
	t	LIQUID PIPE TEMP. SENSOR
		(UNIT D) (THERMISTOR)
	t	LIQUID PIPE TEMP. SENSOR
10		(UNIT E) (THERMISTOR)
1	t	GAS PIPE TEMP. SENSOR
		(UNIT A) (THERMISTOR)
	t	GAS PIPE TEMP. SENSOR
		(UNIT B) (THERMISTOR)
CN-TH4
		GAS PIPE TEMP. SENSOR
(WHITE)	t
		(UNIT C) (THERMISTOR)
	t	GAS PIPE TEMP. SENSOR
		(UNIT D) (THERMISTOR)
	t	GAS PIPE TEMP. SENSOR
		(UNIT E) (THERMISTOR)

11

OUTDOOR TEMP.

1SENSOR (THERMISTOR)

(WHITE) t CN-TH1 t

4 HEAT EXCHANGER TEMP. SENSOR (THERMISTOR)

DEFROST TEMP.

1 SENSOR (THERMISTOR)

(YELLOW) t CN-TH2

REMARKS

B : BLUE

BL : BLACK

W : WHITE

R : RED

Y : YELLOW

GRY : GRAY

G : GREEN

ORG : ORANGE

Y/G : YELLOW/GREEN

BR : BROWN

HEATER

YELLOW (YEL)

BLUE RED

(BLU) (RED)

(TRADEMARK) COMP. TERMINAL

THE PARENTHESIZED LETTERS IS

INDICATED ON TERMINAL COVER

3
CN-HT	(WHITE)	(YELLOW)	(BLUE)	(RED)	(BLACK)
(BLACK) 8	CN-EV1 1	6 CN-EV2 1	6 CN-EV3 1	7 CN-EV4 1 8	CN-EV5 1
	M	M	M	M	M	TEMP.
						DISCHARGE
	MAGNETIC COIL MAGNETIC COIL		MAGNETIC COIL	MAGNETIC COIL	MAGNETIC COIL
	UNIT A	UNIT B	UNIT C	UNIT D	UNIT E
	ELECTRO-	ELECTRO-	ELECTRO-	ELECTRO-	ELECTRO-
	(EXPANSION	(EXPANSION	(EXPANSION	(EXPANSION	(EXPANSION
	VALVE)	VALVE)	VALVE)	VALVE)	VALVE)

4

(WHITE)

CN-DIS

2	1
(THERMISTOR)	t
SENSOR