General ABHA18L, ABHA18LATN, AOHA18LACL, ABHA18LA, ABHA18LAT Service Manual

SPLIT TYPE

ROOM AIR CONDITIONER

FLOOR CONSOLE / UNDER CEILING DUAL type

Models

Indoor unit	Outdoor unit
ABHA18LATN	AOHA18LACL
ABHA24LATN	AOHA24LACL

CONTENTS

SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . 1 OUTLINE AND DIMENSIONS . . . . . . . . . . . 2

REFRIGERANT SYSTEM DIAGRAM . . . . . 5

CIRCUIT DIAGRAM . . . . . . . . . . . . . . . . . . . 6 PCB CIRCUIT DIAGRAM . . . . . . . . . . . . . . . 8 ERROR DISPLAY. . . . . . . . . . . . . . . . . . . . 13

DISASSEMBLY ILLUSTRATION . . . . . . . . 15 PARTS LIST . . . . . . . . . . . . . . . . . . . . . . . . 28

ACCESSORIES . . . . . . . . . . . . . . . . . . . . . 30

SPECIFICATIONS

TYPE	COOL & HEAT INVERTER
INDOOR UNIT	ABHA18LATN	ABHA24LATN
OUTDOOR UNIT	AOHA18LACL	AOHA24LACL
COOLING CAPACITY	5.20 kW	7.10 kW
HEATING CAPACITY	6.00 kW	8.00 kW

ELECTRICAL DATA

	POWER SOURCE		230 V	230 V
	FREQUENCY		50 Hz	50 Hz
	RUNNING CURRENT	COOLING	7.1 A	9.7 A
		HEATING	7.3 A	9.7 A
	INPUT WATTS	COOLING	1.62 kW	2.21 kW
		HEATING	1.66 kW	2.21 kW
	E.E.R.	COOLING	3.21 kW/kW	3.21 kW/kW
	COP	HEATING	3.61 kW/kW	3.61 kW/kW
	MOISTURE REMOVAL		1.7 L/hr	2.7 L/hr
	AIR CIRCULATION HIGH		780 m3/hr	980 m3/hr

COMPRESSOR

TYPE		Hermetic type,	4 pole,		3 phase,
		DC inverter motor,			Rotary
DISCRIMINATION		DA130A1F-25NA		DA150A1F-20NA
REFRIGERANT	R410A	1,250 g			1,700 g

FAN MOTOR

POWER SOURCE			230 V		230 V
	HIGH-SPEED	1,040	/ 1,040 r.p.m.	1,330	/ 1,300 r.p.m.
INDOOR UNIT	MED-SPEED	950	/ 950 r.p.m.	1,150	/ 1,150 r.p.m.
( cool / heat )	LOW-SPEED	800	/ 800 r.p.m.	1,000	/ 1,000 r.p.m.
	QUIET	740	/ 740 r.p.m.	780	/	780 r.p.m.
OUTDOOR UNIT		860 / 820 r.p.m.		1,050 /		1,050 r.p.m.

DIMENSIONS

INDOOR UNIT	H x W x D	199 x 990 x 655 mm
OUTDOOR UNIT	H x W x D	578 x 790 x 300 mm	578 x 790 x 315 mm

WEIGHT

INDOOR UNIT	Gross / Net	36 kg / 27 kg
OUTDOOR UNIT	Gross / Net	44 kg / 40 kg	48 kg / 44 kg

NOISE LEVEL

INDOOR UNIT ( cool / heat )	43 dB	/	43 dB	48 dB	/	48 dB
OUTDOOR UNIT ( cool / heat )	50 dB	/	50 dB	52 dB	/	53 dB

REFRIGERANT (R410A)

	Pipe Length	15 m	1,250 g	1,700 g
	FULL CHARGE
		20 m	1,350 g	1,800 g
	ADDITIONAL REFRIGERANT		20 g/m	20 g/m

2006.10.26

1

OUTLINE AND DIMENSIONS

INDOOR UNIT

Unit : mm

655

990		199

(rear view)

500

200	530
175
900

2006.10.16

2

OUTDOOR UNIT

AOHA18LACL

Unit : mm

Top view

		790		66	300
578
10
		Front view			347
		540			Side view
		Air flow
320					121	184
			4-	10mm hole	177
Drain pipe		Bottom view			189
mounting place
(	20)

2006.10.26

3

OUTDOOR UNIT

AOHA24LACL

Unit : mm

Top view

		790		66	315
578
10
		Front view			347
		540			Side view
		Air flow
320					121	184
			4-	10mm hole	177
Drain pipe		Bottom view			189
mounting place
(	20)

2006.10.26

4

REFRIGERANT SYSTEM DIAGRAM

OUTDOOR UNIT

INDOOR UNIT

	Muffler
	3-Way
	valve
	Muffler
	4-Way
	valve
Heat exchanger	Heat exchanger
	Accumulator
	Compressor

Strainer			Expansion			Strainer				2-Way
			valve
										valve

Cool						: THERMISTOR (COMPRESSOR TEP.)				: THERMISTOR (PIPE TEP.)
Heat
						: THERMISTOR (DISCHARGE TEP.)				: THERMISTOR (ROOM TEP.)

: THERMISTOR (HEAT EXCHANGER MED TEP.)

: THERMISTOR (HEAT EXCHANGER OUT TEP.) : THERMISTOR (OUTDOOR TEP.)

Refrigerant pipe diameter

ABHA18LATN / AOHA18LACL

Liquid : 1/4" (6.35 mm)

Gas : 1/2" (12.70 mm)

ABHA24LATN / AOHA24LACL

Liquid : 1/4" (6.35 mm)

Gas : 5/8" (15.88 mm)

2006.10.26

5

CIRCUIT DIAGRAM

INDOOR UNIT

STEP MOTOR

STEP MOTOR

FAN MOTOR F M

YELLOW

GREEN /

M

M

11

22

33

44

55

66

77

88

																								BLACK															GRAY
																																	1			1																				PIPE TEMP.
																								BLACK															GRAY
																																	2			2
																																																								THERMISTOR
																																							BLACK
																																							BLACK																	ROOM TEMP.
																																																								THERMISTOR
														1				2												1		2
														1				2						1		2				1		2
														CN5										CN7						CN8						CN13 CN3			1																				INDICATORPCB ASSY
					BROWN																																		2
		1		1					1
					RED																																		3
		2		2	ORANGE			2	2		CN11CN12																																							1	1					1
		3		3					3																																		RED
		4		4	YELLOW				4																														1 1				ORANGE							2	2					2
																																							2		2
		5		5	WHITE			5	5																																		YELLOW							3	3					3
					WHITE																																		3 3											4	4					4
		5 5						5	5
		1			BROWN										CONTROLLER																								4 4				WHITE							5	5					5
				1					1						PCB ASSY																								5 5				BLUE
					RED																																													6	6					6
		2		2					2
																																											PURPLE
					ORANGE										( MAIN PCB )																								6 6											7	7					7
		3		3					3
																																											GRAY
					YELLOW																																		7		7									8	8					8
		4		4					4
																																				CN14			1		1		RED
											CN9																																WHITE													TERMINAL
																																							2		2
									1
																																											BLACK
																																							3		3
									2
									3																											CN6
											CN10																												1										1				2			3
																																							2
									1
									2
																		CN4															CN1										TO REMOTE CONTROL UNIT
											1		2	3				4			5			6		7		8				1	2			3
																																											( OPTION )
											1		2	3				4			5			6		7		8				1	2			3
										GRAY		GRAY		GRAY		GRAY				GRAY			GRAY		GRAY		GRAY				GRAY		GRAY		GRAY
											1		2	3				4			5			6		7		8				1	2			3
											1		2				3	4			5			6		7		8				1	2			3
				BROWN											CN104																	CN101
						1	1																																				RED												TERMINAL
				YELLOW		2	2						POWER SUPPLY																						W105
																																											WHITE
				WHITE					CN105																											CN106
				BLACK		3		3					PCB ASSY																						W102								BLACK
						4	4																												W101
						5	5
					RED																FUSE 3.15A																			1					1				2						3
						6	6
																											250V													2
								E101 E102										CN102								CN103 CN108
																		1			2		3				1			2			1		2
									GREEN			GREEN																														TO OUTDOOR UNIT

2006.10.17

6

OUTDOOR UNIT

REACTOR
YELLOW	YELLOW
2	1
2	1
	RED		W10
	WHITE
			W11		W7			RED	1	1
								WHITE
					W8				2	2
PIPE TEMPERATURE								BLACK
	BLACK				W9				3	3
THERMISTOR		1	1
	BLACK	2	2	CN71
DISCHARGE PIPE	BROWN	3	3
	BROWN	4	4			1	1	RED
TEMPERATURE THERMISTOR
						2	2	BLACK
					CN801	3	3
						4	4	WHITE
	BROWN	1	1			5	5	YELLOW
COMPRESSOR				CN73		6	6	BLUE
	BROWN	2	2
TEMPERATURE THERMISTOR				CONTROLLER PCB ASSY
PIPE ( MID )	BLACKBLACK	1	1		( MAIN PCB )
				CN72
TEMPERATURE THERMISTOR		2	2

									1	1	RED
				BLACK					2	2	BROWN
OUTDOOR TEMPERATURE					1	1		CN40	3	3	BLUE
THERMISTOR				BLACK	2	2 CN70	FUSE		4	4	ORANGE
					3	3			5	5	YELLOW
		WHITE							6	6	WHITE
				RED		W4	15A 250V
				WHITE		W2	FUSE
FUSE 250V 5A
				BLACK		W1			1	1	BLACK
							3.15A	CN30	2	2
BLACK		BLACK	BLACK	FUSE 250V 20A							BLACK
						W3	250V		3	3
				GREEN
TERMINAL	1	2	3 L	N
		( N )
TO INDOOR UNIT			POWER SOURCE

RED	R (R)
WHITE	C M COMPRESSOR
S (S)
BLACK	C (T)

F M FAN MOTOR

PMV EXPANSION

VALVE

4WV 4-WAY VALVE

2006.11.14

7

INDOOR PCB CIRCUIT DIAGRAM

CONTROL UNIT

ABHA18LATN : EZ-00607HSE

ABHA24LATN : EZ-00603HSE

DC FAN MOTOR

F M

3

2(N)

1

TERMINAL BOARD

OUTDOOR UNIT

UL1015	AWG16
	GREEN	E101
UL1015	AWG16
	GREEN	E102
DC FAN MOTOR
	CN105
B5P6-VH-B		CN105-6
1	RED
2		CN105-5
3	BLACK	CN105-4
4	WHITE	CN105-3
5	YELLOW	CN105-2
6	BROWN	CN105-1
7
8
DRAIN PUMP
	CN106
B2P3-VH-B-E		CN106-1
		CN106-2
	EIB OUT
	CN103
B2B-XH-AM		CN103-1
		CN103-2
	EIB I N
	CN102
B3B-XH-AM		CN102-1
		CN102-2
		CN102-3

BLACK	WHITE	RED
AWG20	AWG20	AWG20
UL1015	UL1015	UL1015
W101	W102	W105

POWER SUPPLY PCB K06AL-0600HSE-P0

CN8 B2B-XASK-1-A

CN8-1

CN8-2

CN7

CN7-1 B2B-XAYK-1-A

CN7-2

CN5-1

CN5-2

CN5 B2B-XAKK-1-A

ROOM TEMPERATURE THERMISTOR

GRAY

GRAY

PIPE TEMPERATURE THERMISTOR ( ENTRANCE )

PIPE TEMPERATURE THERMISTOR ( MID )

BLACK

BLACK

				INDICATOR PCB
	CN13		CN201	K04E1-0600HSE-D0
			S08B-PASK-2
	B07B-PASK-11			CN201-1
CN13-1			1
	RED	2	2	CN201-2
CN13-2	ORANGE	3	3	CN201-3
CN13-3	YELLOW	4	4	CN201-4
CN13-4	WHITE	5	5	CN201-5
CN13-5	BLUE	6	6	CN201-6
CN13-6	PURPLE	7	7	CN201-7
CN13-7	GRAY	8	8	CN201-8

CONTROLLER PCB ASSEMBLY	CN14-1
( MAIN PCB )	CN14-2
	CN14-3

ABHA18LATN : K06AK-0603HSE-C1

ABHA24LATN : K06AK-0600HSE-C1

	POWER DRIVE POWER DRIVE
	CN104	CN4
CN104-1	B08B-PASK-1	B08B-PASK-1	CN6-1
	GRAY	CN4-1	CN6-2
CN104-2	GRAY	CN4-2
CN104-3	GRAY	CN4-3
CN104-4	GRAY	CN4-4
CN104-5	GRAY	CN4-5
CN104-6	GRAY	CN4-6
	GRAY
CN104-7		CN4-7
	GRAY
CN104-8		CN4-8

		DC SUPPLY		DC SUPPLY
		CN101		CN1
CN101-1		B03B-PASK-1 B03B-PASK-1					CN1-1
				GRAY
CN101-2				GRAY			CN1-2
CN101-3				GRAY			CN1-3

EMI FILTER

FLOAT SWITCH
CN9		CN9-1
B03B-XARK-1-A		CN9-2	CN11-1
		CN9-3	CN11-2
			CN11-3
			CN11-3
			CN11-4
			CN11-5
			CN12-1
			CN12-2
			CN12-3
			CN12-3
			CN12-4
			CN12-5

REMOTE

CN14

B3B-XAKK-1-A

RED

WHITE

BLACK

		BLACK	WHITE	RED
	FRESH AIR	AWG22	AWG22	AWG22
	CN6	UL1430	UL1430	UL1430
	B02B-PAMK-1

TERMINAL BOARD 3 2 1

EARTH WIRE

	REMOTE CONTROL UNIT
CN11
B05B-XASK-1-A
BROWN
RED	LOUVER
ORANGE
YELLOW	U - D
WHITE
BROWN
RED	LOUVER
ORANGE
YELLOW	L - R
WHITE
CN12
B05B-XARK-1-A

2006.10.26

8

CONTROLLER PCB ASSEMBLY

ABHA18LATN : K06AK-0603HSE-C1

ABHA24LATN : K06AK-0600HSE-C1

IC1

UPD78F0535GK

(R)-012-UET-A

2006.10.26

9