General AUH18L, AUH18LBAB, AOH18LMAKL Service Manual
SPLIT TYPE
AIR CONDITIONER
CASSETTE
Models
Indoor unit Outdoor unit
type (50Hz)
AUH18LBAB AOH18LMAKL
CONTENTS
SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
OUTLINE AND DIMENSIONS
REFRIGERANT SYSTEM DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . .
ERROR CONTENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
INDOOR PRINTED CIRCUIT BOARD CIRCUIT DIAGRAM . . . . . 9
OUTDOOR PRINTED CIRCUIT BOARD CIRCUIT DIAGRAM . . 10
DISASSEMBLY ILLUSTRATION . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
PARTS LIST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
STANDARD ACCESSORIES
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
18
5CIRCUIT DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7
SPECIFICATIONS
TYPE
INDOOR UNIT
OUTDOOR UNIT
COOLING CAPACITY
HEATING CAPACITY
ELECTRICAL DATA
POWER SOURCE
FREQUENCY
RUNNING CURRENT (A)
INPUT WATTS (kW)
E.E.R. (kW/kW)
STARTING CURRENT
MOISTURE REMOVAL
AIR CIRCULATION-Hi
(kW)
(kW)
(V)
(Hz)
COOLING
HEATING
COOLING
HEATING
COOLING
HEATING
(A)
( /hr)
3
(m
/hr)
COOL & HEAT
AUH18LBAB
AOH18LMAKL
4.70
4.80
230
50
7.2
7.5
1.65
1.71
2.85
2.81
10
2.0
620
COMPRESSOR
TYPE
DISCRIMINATION
POWER SOURCE
REFRIGERANT (R410A)
FAN MOTOR
POWER SOURCE
INDOOR UNIT
OUTDOOR UNIT
DIMENSIONS
INDOOR UNIT
OUTDOOR UNIT
GRILLE
DISCRIMINATION
HI-SPEED
MED-SPEED
LO-SPEED
DISCRIMINATION
HI / LO
H x W x D
H x W x D
H x W x D
(r.p.m.) 800
(r.p.m.)
(r.p.m.) 600
(r.p.m.)
Hermetic type, 4 poles,
DC motor, twin Rotary
TNB220FPCM
230V 50Hz
(g)
(V) 230
MFA-18GTBT
MFB-24JTAT
(mm)
(mm)
(mm)
235 x 580 x 580 +70
650 x 830 x 320
35 x 650 x 650
1,500
700
780 / 400
2005.01.12
WEIGHT
INDOOR UNIT
OUTDOOR UNIT
GRILLE
NET / GROSS
NET / GROSS
NET / GROSS
(kg)
(kg)
(kg)
18 / 23
54 / 58
2.2 / 4.3
1
MODELS
DISCHARGE
PRESSURE
SUCTION
PRESSURE
DISCHARGE
TEMP.
REFRIG. PIPE LENGTH
DISCHARGE
REFRIGERANT CIRCUITCONDITIONPIPING
AIR TEMP.
INDOOR
ENTERING
AIR TEMP.
OUTDOOR
ENTERING
AIR TEMP.
PIPE DIA.
SIZE
CONNECTION METHOD Flare
BETWEEN
REFRIGERANT TYPE
MPa
MPa
C
C
DB/WB
DB/WB
LIQUID
GAS 12.7
HEIGHT
PIPE LENGTH
COOLING 2.72
HEATING 3.36
COOLING 0.85
HEATING 0.80
COOLING 71
HEATING 84
m
COOLING 10
HEATING 47
COOLING
C
HEATING
COOLING
C
HEATING
mm
m
AUH18LBAB
AOH18LMAKL
7.5
27.0 / 19.0
20.0 /
––
35.0 / 24.0
7.0 / 6.0
6.35
Max. 15
Max. 25
R410A
REFRIGERANT CHARGE ( R410A )
PIPE LENGTH 10 m
15 m
FULL CHARGE AMOUNT
( g )
ADDITIONAL REFRIGERRANT
20 m
25 m
( g / m )
1,500
1,600
1,700
1,800
20
2005.01.12
2
235
66
250
440
580
( 650) (Grille measurement)
650
(Hanging bolt position)
400
(Hanging bolt position)
606
580 66
440
600
(Ceiling opening measurement)
250
60
86
Drain pipe (I.D. 32)
54
46
131
111
47
INDOOR UNIT
OUTLINE AND DIMENSIONS
(unit : mm)
20
35
650
650
32005.02.07
OUTDOOR UNIT
Unit : mm
350
830
650
12
Air flow
Bottom
320
603
343
42004.11.01
Model : AUH18LBAB
CIRCUIT DIAGRAM
Thermistor
(pipe temp.)
Stepping
Motor
Fan Motor
Fan Motor
Capacitor
Thermistor
(room temp.)
Float Switch
Controller PCB
Filter Board
Drain Pump Motor
to outdoor unit
Terminal
2005.02.07
5
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