General AOH18LM, ASH12LMACW, AOH18LMAK2, ASH7LMACW, ASH9LMACW Service Manual

INVERTER MULTI

AIR CONDITIONER

WALL MOUNTED type

Models
Indoor unit			Outdoor unit
ASH7LMACW
ASH9LMACW			AOH18LMAK2
ASH12LMACW

CONTENTS

SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . 1 OUTLINE AND DIMENSIONS . . . . . . . . . . 2 REFRIGERANT SYSTEM DIAGRAM . . . . 3 CIRCUIT DIAGRAM . . . . . . . . . . . . . . . . . . 4 INDOOR PCB CIRCUIT DIAGRAM . . . . . . . 6 OUTDOOR PCB CIRCUIT DIAGRAM . . . . . 7 ERROR CONTENTS . . . . . . . . . . . . . . . . . . 8 DISASSEMBLY ILLUSTRATION . . . . . . . 11 PARTS LIST . . . . . . . . . . . . . . . . . . . . . . . 13 STANDARD ACCESSORIES . . . . . . . . . . . 15

SPECIFICATIONS

TYPE	COOL & HEAT

INDOOR UNIT						ASH7LMACW	ASH9LMACW			ASH12LMACW
OUTDOOR UNIT							AOH18LMAK2
ELECTRICAL DATA ( INDOOR UNIT )
COOLING CAPACITY					(kW)	2.2	2.7			3.5
HEATING CAPACITY					(kW)	2.6	3.2			4.0
MOISTURE REMOVAL				(	/hr)	1.0	1.2			1.6
AIR CIRCULATION-Hi				(m3/hr)		430	480			530
ELECTRICAL DATA ( OUTDOOR UNIT )
POWER SOURCE					(V)		230
FREQUENCY					(Hz)			50
COOLING CAPACITY (MAX)					(kW)		5.5	(6.5)
HEATING CAPACITY (MAX)					(kW)		6.4	(7.1)
RUNNING CURRENT (A)			COOLING				7.5	(9.7)
			HEATING				8.0	(9.7)
(MAX)
INPUT WATTS		(kW)	COOLING				1.73	(2.22)
(MAX)			HEATING				1.84	(2.22)
E.E.R.	(kW / kW)		COOLING				3.18
			HEATING				3.48
COMPRESSOR
TYPE						Hermetic type,		Inverter,	4 poles,
						Three phase,		DC motor, Rotary
DISCRIMINATION							TNB 220 FPCM
REFRIGERANT		R410 A			(g)		1,900
FAN MOTOR
POWER SOURCE					(V)		230
		DISCRIMINATION				MFA-40GR	MFA-40GR			MFA-40GR
INDOOR UNIT		HI		(r.p.m.)		1,000	1,200			1,310
		MED		(r.p.m.)		900	1,100			1,260
		LO		(r.p.m.)		850	1,000			1,190
		QUIET		(r.p.m.)		800	940			1,100
OUTDOOR UNIT				(r.p.m.)			780 - 790
DIMENSIONS
INDOOR UNIT	H x W x D				(mm)		257 x 808 x 187
OUTDOOR UNIT	H x W x D				(mm)		650 x 830 x 320
WEIGHT
INDOOR UNIT		GROSS / NET			(kg)		10 / 8
OUTDOOR UNIT		GROSS / NET			(kg)		62 / 56
NOISE LEVEL
INDOOR UNIT		HI			(dB)	34		36		38
		LO			(dB)	29		29		33
OUTDOOR UNIT		COOLING			(dB)			49
		HEATING			(dB)			50

2005.08.23

1

OUTLINE AND DIMENSIONS

Unit : mm

INDOOR UNIT

Models : ASH7LMACW

ASH9LMACW

ASH12LMACW

808	187
257

OUTDOOR UNIT

Model : AOH18LMAK2

830	350
650
12

Bottom		Air flow

343

603

2005.07.11

2

REFRIGERANT SYSTEM DIAGRAM

heat exchanger (Outdoor)

4-way valve

A Unit

EVA
strainer		heat exchanger
receiver tank		(Indoor)
	strainer
EVB
electric	2-way	B Unit
expansion	valve
valve

	3-way
COMP	valve
compresser	HEAT
accumulator	COOL

2005.08.19

3

CIRCUIT DIAGRAM

INDOOR UNIT

Models : ASH7LMACW ASH9LMACW ASH12LMACW

BLACK

BLACK

			GRAY									THERMISTOR ( ROOM TEMP. )
			GRAY
										TEST								THERMISTOR
							1		2	3		4	5
										CN1								( PIPE TEMP. )
						1		CN3				CN10		1		H.A. OUT
						2								2
						1		CN2				CN7		1		H.A. IN
						2								3
CN201
		WHITE															BLUE
BOARDDISPLAY	6			6		6		CN4		BOARD		CN5		5		5
	2	REDWHITE		2		2								1		1	RED
	5	WHITE		5		5								4		4	PINK
	4	WHITE		4 4										3		3	YELLOW			M
	3	WHITE		3		3								2		2	ORANGE
																	STEPPING MOTOR
	1			1		1				CONTROL
RED
				1		1
	WHITE
				2		2		CN8
		BLACK
				3		3

							CN6
				1	2	3	4	5	6	7	8
				1	2	3	4	5	6	7	8
F M	MOTOR		BLUE WHITE WHITE WHITE WHITE WHITE WHITE WHITE
	FAN			1	2	3	4	5	6	7	8
						CN105
	WHITE		5	5
YELLOW			4	4	CN101
			3	3
BLACK			2	2
			1	1
	GREEN			W101						FAN MOTOR
										CAPACITOR
											ORANGE
PURPLE			3	3			W106
					CN102
	PURPLE		2	2			W105
			1	1		POWERSUPPLY BOARD
THERMAL FUSE											ORANGE
		TRANSFORMER
RED	RED		2	2	CN104		W104
			1	1
GRAY			2	2	CN103
	GRAY
			1	1
				W102			W103
										RED

BLACK

WHITE

THERMAL FUSE	1	2	3
		(N)
103

THERMAL

2005.07.11

4

OUTDOOR UNIT

Model : AOH18LMAK2

2005.08.23

5