General ARH14L, ARH14LUAD, AOH14LMAKL Service Manual
INVERTER SPLIT TYPE
AIR CONDITIONER (50Hz)
DUCT type
Models
Indoor unit Outdoor unit
ARH12LUAD AOH12LMAKL
ARH14LUAD AOH14LMAKL
CONTENTS
SPECIFICATIONS
OUTLINE AND DIMENSIONS
REFRIGERANT SYSTEM DIAGRAM
CIRCUIT DIAGRAM
INDOOR PCB CIRCUIT DIAGRAM
ERROR CONTENTS
DISASSEMBLY ILLUSTRATION
PARTS LIST
STANDARD ACCESSORIES
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1
2
4
5
7
8OUTDOOR PCB CIRCUIT DIAGRAM
9
11
16
18
SPECIFICATIONS
TYPE
INDOOR UNIT
OUTDOOR UNIT
COOLING CAPACITY
HEATING CAPACITY
AOH12LMAKL AOH14LMAKL
COOLING & HEATING
ARH12LUAD ARH14LUAD
3.50 kW 4.30 kW
4.00 kW 4.80 kW
ELECTRICAL DATA
POWER SOURCE
FREQUENCY
RUNNING CURRENT
INPUT WATTS
E.E.R.
MOISTURE REMOVAL
Note : The above list shows values at the external static pressure of 0Pa, setting the fan speed high notch.
COOLING
HEATING
COOLING
HEATING
COOLING
HEATING
5.10 A 6.00 A
5.80 A 6.50 A
1.15 kW 1.37 kW
1.32 kW 1.49 kW
3.04 kW/kW 3.14 kW/kW
3.03 kW/kW 3.21 kW/kW
1.2 l/hr 1.5 l/hr
230 V
50 Hz
COMPRESSOR
TYPE
Hermetic type, 4 poles, DC motor,
Twin Rotary
DISCRIMINATION
REFRIGERANT (R410A)
TNB220FPCM
1,250 g
FAN MOTOR
DISCRIMINATION
HIGH-SPEED
FAN SPEED
AIR FLOW
DIMENSIONS
WEIGHT
Note : The above list shows values at the external static pressure of 0Pa,setting the fan speed high notch.
INDOOR
DISCRIMINATION
OUTDOOR
H x W x D
GROSS / NET
MED-SPEED
LOW-SPEED
HIGH-SPEED
LOW-SPEED
INDOOR
OUTDOOR
INDOOR
OUTDOOR
INDOOR
OUTDOOR
MFA-18NTT MFA-18NTT
750 r.p.m. 1,000 r.p.m.
680 r.p.m. 860 r.p.m.
610 r.p.m. 720 r.p.m.
MFB-24JTAT
780 r.p.m.
400 r.p.m.
580 m3/h 780 m3/h
2,800 m3/h
217 x 953 x 595 mm
650 x 830 x 320 mm
29 / 25 kg
58 / 54 kg
NOISE LEVEL
HIGH-SPEED
INDOOR UNIT
OUTDOOR UNIT
Note : Static pressure : 0Pa / Duct length : Inlet 0.5m, Outlet 1m
MED-SPEED
LOW-SPEED
COOL
HEAT
32 dB 38 dB
29 dB 34 dB
27 dB 30 dB
50 dB 50 dB
52 dB 52 dB
REFRIGERANT
PIPE LENGTH
FULL CHARGE AMOUNT
ADDITIONAL REFRIGERANT
MAXIMUM PIPE HEIGHT
When you dismantle indoor units which are installed, take care not to make parts fall down, especially motors.
10 m
15 m
20 m
25 m
1,250 g
1,350 g
1,450 g
1,550 g
20 g / m
15 m
12006.05.25
OUTLINE AND DIMENSIONS
INDOOR UNIT
(unit : mm)
Models :
ARH12LUAD
ARH14LUAD
886
850
390
953
920
600
150
22006.05.25
605
57520
217
OUTDOOR UNIT
(unit : mm)
Models :
AOH12LMAKL
AOH14LMAKL
830
350
320
650
12
Bottom
Air flow
343
603
32006.05.25
REFRIGERANT SYSTEM DIAGRAM
OUTDOOR UNIT
High
Pressure
Switch
Condenser
Expansion
Valve
4-Way
Valve
Compressor
Muffler
Accumulator
Strainer
INDOOR UNIT
Refrigerant Pipe
( Gas )
Evaporator
Refrigerant direction
Cooling
Heating
Refrigerant pipe diameter
ARH12LUAD
Gas pipe : 9.52 mm ( 3/8 inch )
Liquid pipe : 6.35 mm ( 1/4 inch )
ARH14LUAD
Gas pipe : 12.70 mm ( 1/2 inch )
Liquid pipe : 6.35 mm ( 1/4 inch )
Refrigerant Pipe
( Liquid )
42006.06.07
CIRCUIT DIAGRAM
INDOOR UNIT
Models :
ARH12LUAD
ARH14LUAD
Thermistor (pipe temp.)
Thermistor (room temp.)
Fan motor
capacitor
Fan motor
CN7
CN6
(drain pump)
CN11
(fresh air)
CN15
(float sw)
CN4
CN5
CN1
CN8
(heater)
(display)
Controller PCB
CN10
CN13
CN17
CN14
(HA)
Outdoor
Remote
Terminal
unit
to outdoor unit
control
to remote control unit
Use T 3.15A - 250V
Fuse on F101
Filter
board
52006.05.25
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