Mitsubishi Mr.Slim PLH-3AAK Operating manual

TECHNICAL & SERVICE MANUAL
SPLIT-TYPE, HEAT PUMP AIR CONDITIONERS
No. OC360
NOTE:
• This manual does not
cover outdoor units.
When servicing outdoor
units, please refer to the
outdoor unit`s service
manual together with this
manual.
CONTENTS
1. REFERENCE MANUAL······································2
2. PART NAMES AND FUNCTIONS ···················3
3. SPECIFICATIONS············································6
4. DATA ······························································14
5. OUTLINES AND DIMENSIONS ·····················28
6. WIRING DIAGRAM ········································31
7. REFRIGERANT SYSTEM DIAGRAM············32
8. TROUBLESHOOTING ···································34
9. FUNCTION SETTING·····································50
10. 4-WAY AIR FLOW SYSTEM ··························57
11. SYSTEM CONTROL ······································62
12. DISASSEMBLY PROCEDURE ······················76
13. PARTS LIST···················································79
14. OPTIONAL PARTS ········································84
Indoor unit
[Model names] [Service Ref.]
PLH-3AAK PLH-3AAK
PLH-4AAK PLH-4AAK
PLH-5AAK PLH-5AAK
PLH-6AAK PLH-6AAK
PLH-3AAKH PLH-3AAKH
PLH-4AAKH PLH-4AAKH
PLH-5AAKH PLH-5AAKH
PLH-6AAKH PLH-6AAKH
February 2006
INDOOR UNIT
WIRED REMOTE
CONTROLLER
WIRELESS REMOTE
CONTROLLER
ON/OFF TEMP
ON/OFF
TEMP.
Model name
indication
OC360--1.qxp 06.2.24 1:56 PM Page 1

2
1REFERENCE MANUAL
Service Ref. Service Manual No.
PUH-3VKA2.TH-A
PUH-3YKA1.TH-A
PUH-4YKSA1.TH-A
PUH-5/6YKSA3.TH-A
PUH-3VKA.TH
PUH-3YKA.TH
PUH-4/5/6YKSA.TH
PUH-3NKA.TH
PUH-4/5/6TKSA.TH
OC156
OC354
OC325
1-1. OUTDOOR UNIT’S SERVICE MANUAL
OC360--1.qxp 06.2.24 1:56 PM Page 2

3
2PART NAMES AND FUNCTIONS
● Operation buttons
PAR-21MAA
ON/OFF
FILTER
CHECK
OPERATION
CLEAR
TEST
TEMP.
MENU
BACK DAY
MONITOR/SET
CLOCK
ON/OFF
Set Temperature buttons
Down
Up
Timer Menu button
(Monitor/Set button)
Mode button (Return button)
Set Time buttons
Back
Ahead
Timer On/Off button
(Set Day button)
Opening the
door.
ON/OFF button
Fan Speed button
Filter button
(<Enter> button)
Test Run button
Check button (Clear button)
Airflow Up/Down button
Louver button
( Operation button)
To preceding operation
number.
Ventilation button
(Operation button)
To next operation number.
On the controls are set, the same operation mode can be repeated by simply pressing the ON/OFF button.
Auto Air Swing Vane
Disperses airflow up and
down and adjusts the angle
of airflow direction.
Grille
Filter
Removes dust and pollutants
from intake air
Horizontal Air Outlet
Sets airflow of horizontal automatically
during cooling or dehumidifying.
Air Intake
Intakes air from room.
● Indoor Unit
● Wired remote controller
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4
●Display
For purposes of this explanation,
all parts of the display are shown
as lit. During actual operation, only
the relevant items will be lit.
˚F˚C
˚F˚C
ERROR CODE
AFTER
TIMER
TIME SUN MON TUE WED THU FRI SAT
ON
OFF
Hr
AFTER
FILTER
FUNCTION
ONLY1Hr.
WEEKLY
SIMPLE
AUTO OFF
Identifies the current operation
Shows the operating mode, etc.
* Multilanguage display is sup-
ported.
“Centrally Controlled” indicator
Indicates that operation of the re-
mote controller has been prohib-
ited by a master controller.
“Timer Is Off” indicator
Indicates that the timer is off.
Temperature Setting
Shows the target temperature.
Day-of-Week
Shows the current day of the week.
Time/Timer Display
Shows the current time, unless the simple or Auto Off
timer is set.
If the simple or Auto Off timer is set, shows the time
remaining.
“Sensor” indication
Displayed when the remote controller
sensor is used.
“Locked” indicator
Indicates that remote controller but-
tons have been locked.
“Clean The Filter” indicator
Comes on when it is time to clean the
filter.
Timer indicators
The indicator comes on if the corre-
sponding timer is set.
Up/Down Air Direction indica-
tor
The indicator shows the direc-
tion of the outcoming airflow.
“One Hour Only” indicator
Displayed if the airflow is set to
weak and downward during COOL
or DRY mode. (Operation varies
according to model.)
The indicator goes off after one
hour, at which time the airflow di-
rection also changes.
Room Temperature display
Shows the room temperature.
Louver display
Indicates the action of the swing
louver. Does not appear if the
louver is stationary.
(Power On indicator)
Indicates that the power is on.
Fan Speed indicator
Shows the selected fan speed.
Ventilation indicator
Appears when the unit is running in
Ventilation mode.
Caution
●Only the Power on indicator lights when the unit is stopped and power supplied to the unit.
●If you press a button for a feature that is not installed at the indoor unit, the remote controller will display the “Not Available”
message.
If you are using the remote controller to drive multiple indoor units, this message will appear only if he feature is not
present at the parent unit.
●When power is turned ON for the first time, it is normal that “PLEASE WAIT” is displayed on the room temperature indica-
tion (For max. 2minutes). Please wait until this “PLEASE WAIT” indication disappear then start the operation.
OC360--1.qxp 06.2.24 1:56 PM Page 4

5
ON/OFF TEMP
FAN
VANE
TEST RUN
AUTO STOP
AUTO START
h
min
LOUVER
MODE
CHECK
RESETSET CLOCK
MODEL SELECT
NOT AVAILABLE
CHECK TEST RUN
˚C
AMPM
AMPM
VANE CONTROL button
Used to change the air flow direction.
CLOCK button
RESET button
SET button
ON/OFF button
The unit is turned ON and OFF alternately
each time the button is pressed.
LOUVER button
This switch the horizontal fan motion ON
and OFF.
(Not available for this model.)
MODE SELECT button
Used to switch the operation mode between
cooling, drying, blowing, heating and auto
mode.
CHECK-TEST RUN button
Only press this button to perform an inspec-
tion check or test operation.
Do not use it for normal operation.
FAN SPEED SELECT button
Used to change the fan speed.
TIMER display
Displays when in timer operation or when
setting timer.
button
SET TEMPERATURE button sets any desired
room temperature.
CLOCK display
Displays the current time.
“” “ ” display
Displays the order of timer operation.
“ ” “ ” display
Displays whether timer is on or off.
wIn case the outdoor unit is cool only type,
the heating mode is not available.
Buttons used to set the “hour and minute” of
the current time and timer settings.
h and min buttons
display
SET TEMP. display indicates desired temper-
ature set.
display
FAN SPEED display indicates which fan
speed has been selected.
display
The vertical direction of air flow is indicated.
display
Blinks when model is selected.
display
Lights up while transmission to the indoor
unit is mode using switches.
display
CHECK&TEST RUN display indicates that
the unit is being checked or test-run.
display
OPERATION MODE display
Operation mode display indicates which op-
eration mode is in effect.
TIMER CONTROL buttons
AUTO STOP (OFF timer): when this switch
is set, the air conditioner will be au-
tomatically stopped at the preset time.
AUTO START (ON timer): when this switch
is set, the air conditioner will be automatical-
ly started at the preset time.
MODEL SELECT
CHECK TEST RUN
● Wireless remote controller
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6
SPECIFICATIONS
3
PLH-3AAK(H)
Cooling
26,300
7,700
3.32
0.17
0.81
1.00
UNIT : 840(33-1/6)
UNIT : 840(33-1/6)
UNIT : 258(10-1/8)
UNIT : 24(53) [26(57)]
3.15
13.82/5.16
58/37
Heating
28,700[35,800]
8,400[10,500]
3.11[5.21]
0.17[2.27]
0.81[9.47]
1.00[9.7]
PANEL : 950(37-3/8)
PANEL : 950(37-3/8)
PANEL : 30(1-3/16)
PANEL : 5(11)
2.94
12.89/4.81
58/37
PLH-3AAK(H)
Single, 50Hz, 220-240V
Grille : Munsell 0.70Y 8.59/0.97
Plate fin coil
Turbo fan (direct) x 1
0.07
15-20(530-705)
0(direct blow)
[2.1]
Remote controller & built-in
28-34
32(1-1/4)
PUH-3VKA.TH, PUH-3VKA2.TH-A/PUH-3YKA.TH, PUH-3YKA1.TH-A
Single, 50Hz, 220-240V/3, 50Hz, 380-415V(4wires)
Munsell 5Y 7/1
Capillary tube
Hermetic
NH52VNHT/NH52YDAT
2.2/2.4
Line start
w1
Plate fin coil
Propeller (direct) x1
0.085
50(1764)
Reverse cycle
52
870(34-1/4)
295+24 (11-5/8 add 1)
850(33-1/4)
75(165)
R-22
3.2(7.1)
1.6<MS-32>
9.52 (3/8)
15.88(5/8)
Flared
Flared
Max. 50m
Max. 50m
Service Ref.
Power supply(phase, cycle,voltage)
External finish
Heat exchanger
Fan
Booster heater
Operation control & Thermostat
Noise level(Low-High)
Unit drain pipe O.D.
Dimensions
Weight
Service Ref.
Power supply (phase, cycle, voltage)
External finish
Refrigerant control
Compressor
Heat exchanger
Fan
Defrost method
Noise level
Dimensions
Weight
Refrigerant
Pipe size O.D.
Connection method
Between the indoor & outdoor units
Input
Running current
Starting current
Fan(drive) x No.
Fan motor output
Airflow(Low-High)
External static pressure
Input
Running current
Starting current
Model
Motor output
Starter type
Protection devices
Fan(drive) x No.
Fan motor output
Airflow
Charge
Oil<Model>
W
D
H
W
D
H
Liquid
Gas
Indoor side
Outdoor side
Height difference
Piping length
Function
Capacity
Total input
INDOOR UNITOUTDOOR UNIT
REFRIGERANT
PIPING
Item Service Ref.
Btu/h
W
kW
kW
A
A
kW
K/ min (CFM)
Pa
kW
dB
mm(in.)
mm(in.)
mm(in.)
mm(in.)
kg(lbs)
kW
A
A
kW
kW
K/ min (CFM)
dB
mm(in.)
mm(in.)
mm(in.)
kg(lbs)
kg(lbs)
L
mm(in.)
mm(in.)
w1 V …Internal Thermostat, HP switch
Y…Anti-phase protector, thermal relay, thermal switch, HP switch
Notes: Rating condition (ISO T1<JIS B8616>)
Cooling: Indoor : D.B. 27°C, W.B. 19°C
Outdoor : D.B. 35°C, W.B. 24°C
Heating: Indoor : D.B. 20°C
Outdoor : D.B. 7°C, W.B. 6°C
Refrigerant piping length(one way):5m(16ft)
OC360--1.qxp 06.2.24 1:56 PM Page 6

7
Service Ref.
Power supply(phase, cycle,voltage)
External finish
Heat exchanger
Fan
Booster heater
Operation control & Thermostat
Noise level(Low-High)
Unit drain pipe O.D.
Dimensions
Weight
Service Ref.
Power supply (phase, cycle, voltage)
External finish
Refrigerant control
Compressor
Heat exchanger
Fan
Defrost method
Noise level
Dimensions
Weight
Refrigerant
Pipe size O.D.
Connection method
Between the indoor & outdoor units
Input
Running current
Starting current
Fan(drive) x No.
Fan motor output
Airflow(Low-High)
External static pressure
Input
Running current
Starting current
Model
Motor output
Starter type
Protection devices
Fan(drive) x No.
Fan motor output
Airflow
Charge
Oil<Model>
W
D
H
W
D
H
Liquid
Gas
Indoor side
Outdoor side
Height difference
Piping length
Function
Capacity
Total input
INDOOR UNITOUTDOOR UNIT
REFRIGERANT
PIPING
Item Service Ref.
Btu/h
W
kW
kW
A
A
kW
K/ min (CFM)
Pa
kW
dB
mm(in.)
mm(in.)
mm(in.)
mm(in.)
kg(lbs)
kW
A
A
kW
kW
K/ min (CFM)
dB
mm(in.)
mm(in.)
mm(in.)
kg(lbs)
kg(lbs)
L
mm(in.)
mm(in.)
PLH-3AAK
Cooling w1/w2
23,200/27,300
6,800/8,000
4.29/3.68
0.16
0.77
1.00
UNIT : 840(33-1/6)
UNIT : 840(33-1/6)
UNIT : 258(10-1/8)
UNIT : 24(53)
4.13/3.52
18.77/16.49
80
Heating w1
31,700
9,300
3.49
0.16
0.77
1.00
PANEL : 950(37-3/8)
PANEL : 950(37-3/8)
PANEL : 30(1-3/16)
PANEL : 5(11)
3.33
15.6
80
PLH-3AAK
Single, 60Hz, 220V
Grille : Munsell 0.70Y 8.59/0.97
Plate fin coil
Turbo fan (direct) x 1
0.07
15-20(530-705)
0(direct blow)
—
Remote controller & built-in
28-34
32(1-1/4)
PUH-3NKA.TH
Single, 60Hz, 220V
Munsell 5Y 7/1
Capillary tube
Hermetic
NHJ47NADT
2.2
Line start
Internal thermostat, HP switch
Plate fin coil
Propeller (direct) x1
0.085
50(1764)
Reverse cycle
52
870(34-1/4)
295+24 (11-5/8 add 1)
850(33-1/4)
78(172)
R-22
3.2(7.1)
1.6<MS-32>
9.52 (3/8)
15.88(5/8)
Flared
Flared
Max. 50m
Max. 50m
Notes : w1.Rating condition (SSA 385)
Cooling: Indoor : D.B. 29°C, W.B. 19°C
Outdoor: D.B. 46°C, W.B. 24°C
Heating: Indoor : D.B. 21°C
Outdoor: D.B. 7°C, W.B. 6°C
w2.Rating condition (ISO T1<JIS 8616>)
Cooling: Indoor : D.B. 27°C, W.B. 19°C
Outdoor: D.B. 35°C, W.B. 24°C
Refrigerant piping length(one way):5m(16ft)
OC360--1.qxp 06.2.24 1:56 PM Page 7

8
Cooling
33,100
9,700
3.46
0.26
1.25
2.0
UNIT : 840(33-1/6)
UNIT : 840(33-1/6)
UNIT : 298(11-3/4)
UNIT : 30(66)[32(71)]
3.20
5.24
40
Heating
35,500[44,400]
10,400[13,000]
3.45[6.05]
0.26[2.86]
1.25[11.93]
2.0[12.7]
PANEL : 950(37-3/8)
PANEL : 950(37-3/8)
PANEL : 30(1-3/16)
PANEL : 5(11)
3.19
5.22
40
Service Ref.
Power supply(phase, cycle,voltage)
External finish
Heat exchanger
Fan
Booster heater
Operation control & Thermostat
Noise level(Low-High)
Unit drain pipe O.D.
Dimensions
Weight
Service Ref.
Power supply (phase, cycle, voltage)
External finish
Refrigerant control
Compressor
Heat exchanger
Fan
Defrost method
Noise level
Dimensions
Weight
Refrigerant
Pipe size O.D.
Connection method
Between the indoor & outdoor units
Input
Running current
Starting current
Fan(drive) x No.
Fan motor output
Airflow(Low-High)
External static pressure
Input
Running current
Starting current
Model
Motor output
Starter type
Protection devices
Fan(drive) x No.
Fan motor output
Airflow
Charge
Oil<Model>
W
D
H
W
D
H
Liquid
Gas
Indoor side
Outdoor side
Height difference
Piping length
Function
Capacity
Total input
INDOOR UNITOUTDOOR UNIT
REFRIGERANT
PIPING
Item Service Ref.
Btu/h
W
kW
kW
A
A
kW
K/ min (CFM)
Pa
kW
dB
mm(in.)
mm(in.)
mm(in.)
mm(in.)
kg(lbs)
kW
A
A
kW
kW
K/ min (CFM)
dB
mm(in.)
mm(in.)
mm(in.)
kg(lbs)
kg(lbs)
L
mm(in.)
mm(in.)
PLH-4AAK(H)
PLH-4AAK(H)
Single, 50Hz, 220-240V
Grille : Munsell 0.70Y 8.59/0.97
Plate fin coil
Turbo fan (direct) x 1
0.120
20-28(705-990)
0(direct blow)
[2.6]
Remote controller & built-in
33-41
32(1-1/4)
PUH-4YKSA.TH, PUH-4YKSA1.TH-A
3, 50Hz, 380V-415V(4wire)
Munsell 5Y 7/1
Capillary tube
Hermetic
NH56YDAT
2.7
Line start
Anti-phase protector, Thermal relay, Thermal switch, HP switch
Plate fin coil
Propeller (direct) x2
0.065+0.065
95(3550)
Reverse cycle
54
870(34-1/4)
295+24(11-5/8 add 1)
1258(49-1/2)
94(207)
R-22
4.2(9.2)
1.6<MS-32>
9.52(3/8)
19.05(3/4)
Flared
Flared
Max. 50m
Max. 50m
Notes: Rating condition (ISO T1<JIS B8616>)
Cooling: Indoor : D.B. 27°C, W.B. 19°C
Outdoor : D.B. 35°C, W.B. 24°C
Heating: Indoor : D.B. 20°C
Outdoor : D.B. 7°C, W.B. 6°C
Refrigerant piping length(one way):5m(16ft)
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9
Cooling w1/w2
33,800/37,400
9,900/10,950
5.26/4.93
0.25
1.19
2.0
UNIT : 840(33-1/6)
UNIT : 840(33-1/6)
UNIT : 298(11-3/4)
UNIT : 30(66)
5.01/4.14
14.14/11.81
69
Heating w1
41,300
12,100
4.21
0.25
1.19
2.0
PANEL : 950(37-3/8)
PANEL : 950(37-3/8)
PANEL : 30(1-3/16)
PANEL : 5(11)
3.96
11.3
69
Service Ref.
Power supply(phase, cycle,voltage)
External finish
Heat exchanger
Fan
Booster heater
Operation control & Thermostat
Noise level(Low-High)
Unit drain pipe O.D.
Dimensions
Weight
Service Ref.
Power supply (phase, cycle, voltage)
External finish
Refrigerant control
Compressor
Heat exchanger
Fan
Defrost method
Noise level
Dimensions
Weight
Refrigerant
Pipe size O.D.
Connection method
Between the indoor & outdoor units
Input
Running current
Starting current
Fan(drive) x No.
Fan motor output
Airflow(Low-High)
External static pressure
Input
Running current
Starting current
Model
Motor output
Starter type
Protection devices
Fan(drive) x No.
Fan motor output
Airflow
Charge
Oil<Model>
W
D
H
W
D
H
Liquid
Gas
Indoor side
Outdoor side
Height difference
Piping length
Function
Capacity
Total input
INDOOR UNITOUTDOOR UNIT
REFRIGERANT
PIPING
Item Service Ref.
Btu/h
W
kW
kW
A
A
kW
K/ min (CFM)
Pa
kW
dB
mm(in.)
mm(in.)
mm(in.)
mm(in.)
kg(lbs)
kW
A
A
kW
kW
K/ min (CFM)
dB
mm(in.)
mm(in.)
mm(in.)
kg(lbs)
kg(lbs)
L
mm(in.)
mm(in.)
PLH-4AAK
PLH-4AAK
Single, 60Hz, 220V
Grille : Munsell 0.70Y 8.59/0.97
Plate fin coil
Turbo fan (direct) x 1
0.120
20-28(705-990)
0(direct blow)
—
Remote controller & built-in
33-41
32(1-1/4)
PUH-4TKSA.TH
3, 60Hz, 220V
Munsell 5Y 7/1
Capillary tube
Hermetic
NHJ56TKAT
2.7
Line start
Anti-phase protector, Thermal relay, Thermal switch, HP switch
Plate fin coil
Propeller (direct) x2
0.065+0.065
95(3550)
Reverse cycle
55
870(34-1/4)
295+24(11-5/8 add 1)
1258(49-1/2)
94(207)
R-22
4.7(10.4)
1.6<MS-32>
9.52(3/8)
19.05(3/4)
Flared
Flared
Max. 50m
Max. 50m
Notes: w1.Rating condition (SSA 385)
Cooling: Indoor : D.B. 29°C, W.B. 19°C
Outdoor: D.B. 46°C, W.B. 24°C
Heating: Indoor : D.B. 21°C
Outdoor: D.B. 7°C, W.B. 6°C
w2.Rating condition (ISO T1<JIS 8616>)
Cooling: Indoor : D.B. 27°C, W.B. 19°C
Outdoor: D.B. 35°C, W.B. 24°C
Refrigerant piping length(one way):5m(16ft)
OC360--1.qxp 06.2.24 1:56 PM Page 9

10
Cooling
42,300
12,400
4.51
0.30
1.43
2.0
UNIT : 840(33-1/16)
UNIT : 840(33-1/16)
UNIT : 298(11-3/4)
UNIT : 30(66) [32(71)]
4.21
6.89
53
Heating
47,800[58,000]
14,000[17,000]
4.46[7.46]
0.30[3.30]
1.43[13.77]
2.0[14.3]
PANEL : 950(37-3/8)
PANEL : 950(37-3/8)
PANEL : 30(1-3/16)
PANEL : 5(11)
4.16
6.81
53
Service Ref.
Power supply(phase, cycle,voltage)
External finish
Heat exchanger
Fan
Booster heater
Operation control & Thermostat
Noise level(Low-High)
Unit drain pipe O.D.
Dimensions
Weight
Service Ref.
Power supply (phase, cycle, voltage)
External finish
Refrigerant control
Compressor
Heat exchanger
Fan
Defrost method
Noise level
Dimensions
Weight
Refrigerant
Pipe size O.D.
Connection method
Between the indoor & outdoor units
Input
Running current
Starting current
Fan(drive) x No.
Fan motor output
Airflow(Low-High)
External static pressure
Input
Running current
Starting current
Model
Motor output
Starter type
Protection devices
Fan(drive) x No.
Fan motor output
Airflow
Charge
Oil<Model>
W
D
H
W
D
H
Liquid
Gas
Indoor side
Outdoor side
Height difference
Piping length
Function
Capacity
Total input
INDOOR UNITOUTDOOR UNIT
REFRIGERANT
PIPING
Item Service Ref.
Btu/h
W
kW
kW
A
A
kW
K/ min (CFM)
Pa
kW
dB
mm(in.)
mm(in.)
mm(in.)
mm(in.)
kg(lbs)
kW
A
A
kW
kW
K/ min (CFM)
dB
mm(in.)
mm(in.)
mm(in.)
kg(lbs)
kg(lbs)
L
mm(in.)
mm(in.)
PLH-5AAK(H)
PLH-5AAK(H)
Single, 50Hz, 220-240V
Grille : Munsell 0.70Y 8.59/0.97
Plate fin coil
Turbo fan (direct) x 1
0.120
22-30(775-1,060)
0(direct blow)
[3.0]
Remote controller & built-in
35-43
32(1-1/4)
PUH-5YKSA.TH, PUH-5YKSA3.TH-A
3, 50Hz, 380-415V(4wire)
Munsell 5Y 7/1
Capillary tube
Hermetic
ZR61KC-TFD
3.5
Line start
Internal thermostat, Anti-phase protector, Thermal switch, HP switch
Plate fin coil
Propeller (direct) x2
0.085+0.085
95(3550)
Reverse cycle
55
970(38-3/16)
345+24(13-9/16 add 1)
1258(49-1/2)
114(251)
R-22
5.4(11.9)
2.130<SONTEX-200LT>
9.52(3/8)
19.05(3/4)
Flared
Flared
Max. 50m
Max. 50m
Notes: Rating condition (ISO T1<JIS B8616>)
Cooling: Indoor : D.B. 27°C, W.B. 19°C
Outdoor : D.B. 35°C, W.B. 24°C
Heating: Indoor : D.B. 20°C
Outdoor : D.B. 7°C, W.B. 6°C
Refrigerant piping length(one way):5m(16ft)
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