Mitsubishi Electric Mr.SLIM PEH Series Operating manual

TECHNICAL & SERVICE MANUAL
SPLIT-TYPE, HEAT PUMP AIR CONDITIONERS
CONTENTS
1. FEATURES ···········································2
2. PART NAMES AND FUNCTIONS········3
3. SPECIFICATIONS·································6
4. DATA·····················································8
5. OUTLINES AND DIMENSIONS··········14
6. WIRING DIAGRAM·····························18
7. REFRIGERANT S STEM DIAGRAM ······19
8. OPERATION FLOW-CHART··············20
9. MICROPROCESSOR CONTROL·······24
10. TROUBLESHOOTING························41
11. DISASSEMBL PROCEDURE···········49
12. PARTS LIST········································51
13. OPTIONAL PARTS·····························55
Indoor unit
PEH-2.5EKHA
PEH-3EKHA
PEH-4EKHSA
PEH-5EKHSA
No. OC153
[Models]
PEH-2.5EKHA2.TH
PEH-3EKHA2.TH
PEH-4EKHSA2.TH
PEH-5EKHSA2.TH
[Service Ref.]
This manual does not over the following
outdoor units. When servi ing them,
please refer to the servi e manual
No.OC128,150 and this manual in a set.
[Servi e Ref.]
PUH-2.5VKA2
PUH-3VKA2,3YKA2
PUH-4YKSA3
PUH-5YKSA3
PUH-2.5VKA2.UK
PUH-3VKA2.UK
PUH-3YKA2.UK
PUH-4YKSA2.UK
PUH-5YKSA2.UK
Indoor unit
Ceiling Concealed
Series PEH
The Slim Line.
From Mitsubishi Electric.
FILTER
CHECK MODE
TEST RUN
Remote controller

2
1FEATURES
Indoor unit
Ceiling Concealed
Series PEH
Remote ontroller
FILTER
CHECK MODE
TEST RUN
Outdoor unit
1. TOTALL INVISIBLE INDOOR UNIT BEHIND THE CEILING
The totally hidden indoor unit that lies above the eiling surfa e enables you to utilize full floor spa e while allowing for flex-
ible interior design. This new feature is re ommended for stores and offi es where the user´s own image is allowed to be
in orporated.
2. MOST SUITABLE FOR SIMULTANEOUS TWO ROOMS AIR CONDITIONING
Using air du ts for ooling / heating airflow that mat hes with the stru ture and purpose of the room enables you to provide
two air outlets for simultaneous ooling / heating of two rooms.
3. HIGH EXTERNAL STATIC PRESSURE
The a eptable external stati pressure of 127Pa (12.7mmAq) allows long du ts to be used more extensively to a hieve on-
venient lo ation of indoor units.
4. ADVANCED MICROPROCESSOR
(1) Easy to use mi ropro essor
1) Ultra-thin remote ontroller
The streamlined, square ontroller is designed to blend well with any interior. Also, the sophisti ated mi ropro essor
allows you to easily arry out a wide range of operations.
2) Attra tive liquid rystal display (LCD)
The unit´s operation mode, set temperature, room temperature, timer setting, and fan speed are displayed on the remote
ontroller´s easy-to-read Liquid Crystal Display (LCD).
3) Convenient 24-hour ON-OFF timer
The timer swit hes Mr. SLIM on and off automati ally at the time you set. On e the timer is set, the remaining time is
shown on the LCD.
4) Self-diagnosti feature indi ates faults instantly
If a problem o urs, the unit will stop operating and the set temperature indi ator will hange to a self-diagnosti indi-
ator, whi h shows the lo ation of the trouble.
If the he k swit h is pressed twi e, the unit stops operating and the he k mode is initiated. The lo ation of the most
re ent problem that was stored in the memory is displayed on the LCD. This is extremely useful for maintenan e pur-
poses.
5) Useful memory feature for storing instru tions
The previous set value is memorized so that onstant temperature ontrol an be a hieved. For example, if a power
failure o urs, the temperature will not have to be readjusted afterwards.
air outlet air outlet
Air outlet du t Air intake du t
air intake
Service Ref. Cooling capacity / Heating capacity (with Heater)
W Btu / h
PEH-2.5EKHA2.TH 6,400/6,700 (8,800) 21,800/22,900 (30,000)
PEH-3EKHA2.TH 7,700/8,300 (10,400) 26,300/28,300 (35,500)
PEH-4EKHSA2.TH 9,700/10,400(12,800) 33,100/35,500 (43,700)
PEH-5EKHSA2.TH 12,400/13,000(16,000) 42,300/44,400 (54,600)

3
PART NAMES AND FUNCTIONS
2
●Indoor (Main) Unit
Air intake duct flange
Air outlet duct flange
Air outlet
Air intake
(sucks the air inside the room into the unit)
(2) Non- polar two-wire remote ontroller able
The slim, non-polar, two-wire remote ontroller able makes installation simple and troublefree. Also, the remote on-
troller wire an be extended up to 500m.
(3)Automati ooling / heating hangeover operation
An automati ooling and heating hangeover operation system allows you to easily ontrol omfortable year-round air
onditioning.
On e the desired temperature is set, unit operation swit hes automati ally between ooling and heating, in a ordan e
with the room temperature. In addition, the use of an outdoor unit fan speed ontroller allows ooling even when out-
door temperatures are as low as -5 °C.
5. INNOVATIVE MICROPROCESSOR CONTROL S STEM
The most signifi ant feature of PEH-EKH(S)A series is the advan ed mi ropro essor ontrol. The development of this sys-
tem is due to the re ent world-wide trend in the air onditioning of larger buildings. They are moving away form entralized
du t systems to using individual split type units instead. There are a number of reasons for this hange. First of all, the du t
´s ostly and troublesome installation is eliminated. Se ond, the overall air onditioning balan e is ex ellent in split type units.
Lastly, the operation osts are low due to the flexible ontrol of ea h unit. This system was developed ex lusively by
Mitsubishi Ele tri be ause of high demand. The mi ropro essor ontrol makes individual ontrol, group ontrol, ontrol
using two remote ontrollers, remote on / off ontrol and individual ontrol possible without troublesome equipment modifi-
ations.

4
● Remote controller
● Operation buttons
● On e the operation of the unit is
set, subsequent operations an
only be performed by pressing
the ON/OFF button repeately.
FILTER
CHECK MODE
TEST RUN
050
wwbutton
This swit hes between
ontinuous operation and
the timer operation.
qqbutton
This sets of swit hes the
urrent time. start time and
stop time.
aabutton
Press this button to swit h
the ooler ele troni dry
(dehumidify) automati and
heater modes.
iiTEMP button
This sets the room tem-
parature. The temparature
setting an be performed in
1°C units
Setting range
Cooler 19°C to 30°C
Heater 17°C to 28°C
This model name of the
remote ontroller is indi at-
ed.
ON/OFF button
This swit hes between the
operation and stop modes
ea h time it is pressed. The
lamp on this butoon lights
during operation.
(This button does not oper-
ate in this model)
FILTER button
This resets the filter servi e
indi ation display.
(This button does not oper-
ate in this model)
llbutton
This sets the ventilation fan
speed.
kkbutton
This swit hes the horizon-
tal fan motion ON and OFF.
(This button does not oper-
ate in this model)
CHECK-TEST RUN button
Only press this button to
perform an inspe tion
he k or test operation. Do
not use it for nomal opera-
tion.
button
This adjusts the verti al
angle of the ventilation.

5
FILTER
CHECK MODE
TEST RUN
050
Caution
●Only the display lights when the unit is stopped and power supplied to the unit.
●When power is turned ON for the first time the (CENTRAL CTRL) display appears to go off momentarily but this is not a
malfun tion.
●When the entral ontrol remote ontrol unit, whi h is sold separately, is used the ON-OFF button, abutton and
iTEMP button do not operate.
●“NOT AVAILABLE” is displayed when the kbutton and jbutton are pressed.This indi ates that this room unit is not
equipped with the fan dire tion adjustment fun tion and the louver fun tion.
Operation lamp
This lamp lights during operation,
goes off when the unit stops and
flashes when amalfun tion o urs.
CENTRALLY
CONTROLLED display
This indi ates when the unit is on-
trolled by optional features su h as
entral ontrol type remote ontroller.
wdisplay
This indi ates when the ontinous
operation and time operation modes
are set.
It also display the time for the timer
operation at the same time as when
it is set.
OPERATION MODE display
This indi ates the operation mode.
STANDBY display
This indi ates when the standby
mode is set from the time the sleep
operation starts until the heating air
is dis harged.
DEFROST display
This indi ates when the defrost oper-
ation is performed.
CHECK display
This indi ates when a malfun tion
has o urred in the unit whi h should
be he ked.
/display
This lamp lights when ele tri ity is
supplied to the unit.
—88°C display
This displays the sele ted setting
temperature.
rdisplay
The urrent time , start time and stop
time an be displayed in tense ond
intervals by pressing the time swit h
button. The start time or stop time is
always displayed during the timer
operation.
ldisplay
The sele ted fan speed is displayed.
●Display
—88°C display
The temperature of the su tion air is
displayed during operation. The dis-
play range is 8° to 39°C. The display
flashes 8°C when the a tual temper-
ature is less than 8° and flashes
39°C when the a tual temperature is
greater than 39°C.
In this display example on the bottom left, a ondi-
tion where all display lamps light is shown for
explanation purposes although this differs from
a tual operation.
display
This display lights in the he k mode
or when a test operation is per-
formed.
CHECK MODE
TEST RUN

6
3 SPECIFICATIONS
w1 Rating ondition <JIS B 8616>
(INDOOR) Cooling : 27: D.B.,19:W.B. Heating : 20: D.B.
(OUTDOOR) Cooling : 35: D.B. Heating : 7: D.B.,6: W.B.
w2 Noise level : Sound pressure level
PEH-2.5EKHA2 .TH PEH-3EKHA2 .TH
Cooling
21,800
6,400
2.85

Cooling
26,300
7,700
3.54

Cooling
26,300
7,700
3.54

Heating
0.39
1.66
2.30
47<104> 48<106>
0.39(2.49)
1.66(10.41)
2.30(11.1)
0.39
1.66
2.30
0.39(2.49)
1.66(10.41)
2.30(11.1)
0.39
1.66
2.30
0.39(2.49)
1.66(10.41)
2.30(11.0)
Galvanized sheets 
Plate fin oil 
Centrifugal (dire t) 
0.23 
22-27<780-950> 
127 (12.7) at Hi-not h 
2.1 
Remote ontrol & built-in 
52 - 55 
32 <1-1/4> 
785 <31> 
690 <27-1/6> 
428 <16-7/8>
 
2.46
10.68
52
2.23
9.78
52
3.15
13.82
58
2.94
12.89
58
3.15
5.16
37
2.94
4.81
37
Munsell 5Y 7/1 
Capillary tube 
Hermeti  
NH41VMD 
2.0 NH52VND  2.2
Line start
Plate fin oil 
Propeller (dire t)o1
50<1.764>
Reverse y le 
52 
870 <32-1/4> 
295+24 <11-5/8 add 1> 
850 <33-7/16> 
9.52 <3/8> 
15.88 <5/8> 
Flared 
Flared 
Max. 50m 
Max. 50m 
NH52YDA 
2.4
Internal thermostat,HP swit h
Internal thermostat,HP swit h
Thermal relay, Thermal swit h,
HP swit h,Anti-phase prote tor.
0.085 0.085
68 <150> 75 <165>
2.8 <6.2> R-22 3.2 <7.1>
PEH-2.5EKHA2 .TH
Single, 50Hz, 220-240V PEH-3EKHA2 .TH Single, 50Hz, 220-240V
Btu/h
W
kW

kW
A
A

kW
K/min,<CFM> 
Pa(mmAq)
kW

dB(A)
mm,(in)
mm,(in)
mm,(in)
mm,(in)
kg,(lbs)

kW
A
A

kW

kW
K/min,<CFM> 

dB(A)
mm,(in)
mm,(in)
mm,(in)
kg,(lbs)

kg,(lbs)
mm,(in)
mm,(in)
W
D
H
W
D
H

Liquid
Gas
REFRIGERANT PIPING
OUTDOOR UNIT INDOOR UNIT
Indoor side
Outdoor side
Height differen e 
Piping length
Item
Fun tion 
Capa ity
 
Total input
Service Ref.
Power supply(phase, y le,voltage) 
Input
Running urrent
Starting urrent
External finish
Heat ex hanger
Fan(drive) o No.
Fan motor output
Airflow(Low-High)
External stati pressure
Booster heater
Operation ontrol & Thermostat
Noise level(Low-High) w2
Cond. drain onne tion O.D.

Dimensions

Weight
Service Ref.
Power supply (phase, y le, voltage)
Input
Running urrent
Starting urrent
External finish
Refrigerant ontrol
Compressor
Model
Motor output
Starter type
Prote tion devi es
Heat ex hanger
Fan(drive) o No.
Fan motor output
Airflow
Defrost method
Noise level w2

Dimensions

Weight
Refrigerant
Charge
Pipe size O.D.
Conne tion method
Between the indoor & 
outdoor unit
Service Ref.
w1
PUH-2.5VKA2 (.UK)
Single, 50Hz, 220-240V 
PUH-3VKA2 (.UK)
Single, 50Hz, 220-240V 
PUH-3YKA2(.UK)
3,50Hz, 380-415V(4wires)
22,900
(30,000)
6,700
(8,800)
2.62
(4.72)
Heating
28,300
(35,500)
8,300
(10,400)
3.33
(5.43)
Heating
28,300
(35,500)
8,300
(10,400)
3.33
(5.43)

7
PEH-4EKHSA2.TH PEH-5EKHSA2.TH
Cooling
33,100
9,700
3.64

Heating Cooling
42,300
12,400
4.86
0.44
1.87
2.60
0.24
27-34(950-1200)
(2.4)
1055<41-1/2> 1255<49-7/16>
61<134>
3,50Hz,380-415V(4wires)
75<165>
(3.0)
0.28
34-42(1200-1480)
0.44(2.84)
1.87(11.87)
2.60(12.6)
0.65
2.76
3.20
0.65(3.65)
2.76(15.20)
3.20(15.7)
Single, 50Hz, 220-240V
Galvanized sheets 
Plate fin oil 
Centrifugal (dire t)o2 
 
127 (12.7) at Hi-not h 

Remote ontrol & built-in 
54 - 58 
32 <1-1/4> 

690 <27-1/6> 
428 <16-7/8> 
3.20
5.24
40
3.19
5.22
40
4.21
6.89
53
4.16
6.81
53
Musell 5Y 7/1 
Capillary tube 
Hermeti  
NH56YDA 
2.7 ZR61K3-TFD 3.5
Line start

Plate fin oil
Propeller(dire t)o2
95<3.350> 
Reverse y le
 
1,258 <49-1/2> 

9.52 <3/8> 
19.5 <3/4> 
Flared 
Flared 
Max. 50m 
Max. 50m 
0.065+0.065
Thermal relay, Thermal swit h,HP swit h, Anti-phase prote tor Internal thermostat,Thermal swit h,HP swit h, Anti-phase prote tor
94<207> 114<251>
4.2<9.27> 5.4<11.9>
54
870<34-1/4>
295+24<11-5/8 add 1>
55
970<38-3/16>
345+24<13-9/16 add 1>
0.085+0.085
R-22
PEH-4EKHSA2.TH PEH-5EKHSA2.TH
Btu/h
W
kW

kW
A
A

kW
K/min,<CFM> 
Pa(mmAq)
kW

dB(A)
mm,(in)
mm,(in)
mm,(in)
mm,(in)
kg,(lbs)

kW
A
A

kW

kW
K/min,<CFM> 

dB(A)
mm,(in)
mm,(in)
mm,(in)
kg,(lbs)

kg,(lbs)
mm,(in)
mm,(in)
W
D
H
W
D
H

Liquid
Gas
REFRIGERANT PIPING
OUTDOOR UNIT INDOOR UNIT
Indoor side
Outdoor side
Height differen e 
Piping length
Item
Fun tion 
Capa ity
 
Total input 
Service Ref.
Power supply(phase, y le,voltage) 
Input
Running urrent
Starting urrent
External finish
Heat ex hanger
Fan(drive) o No.
Fan motor output
Airflow(Low-High)
External stati pressure
Booster heater
Operation ontrol & Thermostat
Noise level(Low-High) w2
Cond. drain onne tion O.D.

Dimensions

Weight
Service Ref.
Power supply (phase, y le, voltage)
Input
Running urrent
Starting urrent
External finish
Refrigerant ontrol
Compressor
Model
Motor output
Starter type
Prote tion devi es
Heat ex hanger
Fan(drive) o No.
Fan motor output
Airflow
Defrost method
Noise level w2

Dimensions

Weight
Refrigerant
Charge
Pipe size O.D.
Conne tion method
Between the indoor & 
outdoor unit
Service Ref.
w1
PUH-4YKSA3(2.UK) PUH-5YKSA3(2.UK)
35,500
(43,700)
10,400
(12,800)
3.63
(6.03)
Heating
44,400
(54,600)
13,000
(16,000)
4.81
(7.81)

w1 Rating ondition <JIS B 8616>
(INDOOR) Cooling : 27: D.B.,19:W.B. Heating : 21: D.B.
(OUTDOOR) Cooling : 35: D.B. Heating : 7: D.B.,6: W.B.
w2 Noise level : Sound pressure level

8
4DATA
1 PERFORMANCE DATA
1) COOLING CAPACITY
Note CA : Capa ity (W)
P.C. : Power onsumption (kW)
Cooling apa ity orre tion fa tors
P.C.CA
6,457
6,875
7,297
7,724
7,768
8,271
8,779
9,293
9,786
10,419
11,060
11,707
12,510
13,319
14,138
14,965
2.28
2.33
2.37
2.42
2.84
2.89
2.95
3.00
2.92
2.98
3.03
3.09
3.90
3.97
4.05
4.12
16
18
20
22
16
18
20
22
16
18
20
22
16
18
20
22
20
P.C.CA
6,280
6,694
7,126
7,576
7,555
8,053
8,573
9,115
9,518
10,145
10,800
11,482
12,167
12,969
13,806
14,679
2.38
2.43
2.48
2.53
2.96
3.02
3.08
3.14
3.04
3.10
3.17
3.23
4.06
4.14
4.23
4.31
25
P.C.CA
6,049
6,450
6,871
7,314
7,278
7,760
8,267
8,799
9,168
9,775
10,414
11,085
11,720
12,496
13,313
14,170
2.56
2.62
2.68
2.74
3.19
3.26
3.33
3.40
3.28
3.35
3.42
3.50
4.37
4.47
4.57
4.67
30
P.C.CA
5,804
6,194
6,606
7,040
6,983
7,452
7,948
8,470
8,797
9,388
10,012
10,670
11,245
12,001
12,799
13,640
2.75
2.82
2.88
2.95
3.41
3.50
3.58
3.67
3.51
3.60
3.68
3.77
4.69
4.80
4.92
5.04
35
P.C.CA
5,545
5,926
6,330
6,756
6,671
7,130
7,616
8,128
8,426
8,994
9,596
10,230
10,771
11,497
12,266
13,078
2.93
3.01
3.09
3.18
3.64
3.74
3.84
3.95
3.75
3.84
3.94
4.06
5.00
5.13
5.27
5.41
40
P.C.CA
5,271
5,646
6,043
6,461
6,342
6,793
7,270
7,773
8,018
8,577
9,168
9,791
10,249
10,964
11,720
12,516
3.12
3.20
3.30
3.41
3.88
3.98
4.10
4.23
3.98
4.09
4.21
4.35
5.32
5.46
5.62
5.81
45
Outdoor intake air D.B.°CIndoor
Intake
air
W.B.°C
Service Ref.
PEH-2.5EKHA2.TH
PEH-3EKHA2.TH
PEH-4EKHSA2.TH
PEH-5EKHSA2.TH
Service Ref.
PEH-2.5EKHA2.TH
PEH-3EKHA2.TH
PEH-4EKHSA2.TH
PEH-5EKHSA2.TH
5m
1.00
1.00
1.00
1.00
10m
0.989
0.981
0.989
0.981
15m
0.980
0.968
0.980
0.968
20m
0.970
0.952
0.970
0.952
25m
0.960
0.940
0.960
0.940
30m
0.950
0.925
0.950
0.925
Refrigerant piping length (one way)
35m
0.940
0.913
0.940
0.913
40m
0.930
0.900
0.930
0.900
45m
0.920
0.886
0.920
0.886
50m
0.910
0.874
0.910
0.874

9
2) HEATING CAPACITY
Note CA :Capa ity (W)
P.C. :Power onsumption (kW)
Heating apa ity orre tion fa tors
P.C.CA
4,588
4,393
4,222
5,684
5,443
5,230
7,122
6,820
6,554
8,903
8,524
8,192
1.79
1.93
2.04
2.27
2.45
2.60
2.48
2.67
2.83
3.28
3.54
3.75
15
20
25
15
20
25
15
20
25
15
20
25
-10
P.C.CA
5,259
5,052
4,847
6,514
6,259
6,004
8,163
7,842
7,524
10,203
9,803
9,404
1.98
2.13
2.27
2.51
2.71
2.88
2.74
2.95
3.14
3.63
3.91
4.17
-5
P.C.CA
5,994
5,768
5,539
7,425
7,145
6,861
9,303
8,953
8,597
11,629
11,191
10,747
2.18
2.34
2.51
2.76
2.98
3.19
3.01
3.25
3.47
3.99
4.30
4.60
0
P.C.CA
6,792
6,539
6,297
8,414
8,101
7,801
10,543
10,150
9,774
13,179
12,688
12,218
2.39
2.57
2.75
3.03
3.27
3.50
3.31
3.56
3.82
4.38
4.72
5.06
5
P.C.CA
7,653
7,366
7,121
9,481
9,125
8,822
11,880
11,434
11,054
14,850
14,292
13,817
2.61
2.81
3.02
3.32
3.58
3.83
3.62
3.90
4.18
4.80
5.16
5.54

10
P.C.CA
8,576
8,247
8,011
10,624
10,217
9,924
13,312
12,802
12,435
16,640
16,002
15,544
2.85
3.07
3.29
3.62
3.90
4.18
3.95
4.25
4.56
5.23
5.63
6.04
15
Outdoor intake air D.B.°CIndoor
Intake
air
W.B.°C
Service Ref.
PEH-2.5EKHA2.TH
PEH-3EKHA2.TH
PEH-4EKHSA2.TH
PEH-5EKHSA2.TH
Service Ref.
PEH-2.5EKHA2.TH
PEH-3EKHA2.TH
PEH-4EKHSA2.TH
PEH-5EKHSA2.TH
5m
1.00
1.00
1.00
1.00
10m
1.00
1.00
1.00
1.00
15m
1.00
1.00
1.00
1.00
20m
1.00
1.00
1.00
1.00
25m
1.00
1.00
1.00
1.00
30m
1.00
1.00
1.00
1.00
Refrigerant piping length (one way)
35m
0.998
0.998
0.998
0.998
40m
0.995
0.995
0.995
0.995
45m
0.993
0.993
0.993
0.993
50m
0.990
0.990
0.990
0.990

10
Heating
1.4
1.2
1.0
0.8
0.6
1.4
1.2
1.0
0.8
0.6
0.4
-12-10 -5 0 5 10 15
OUTDOOR W.B.(°C)
INDOOR D.B. (°C)
INDOOR D.B. (°C)
15
20
25
25
20
15
TOTAL INPUT (RATIO) CAPACITY (RATIO)
Cooling
2. PERFORMANCE CURVE
1.4
1.2
1.0
0.8
0.6
1.4
1.2
1.0
0.8
0.6
0.4
-5 5 15 253546
OUTDOOR D.B.(°C)
TOTAL INPUT (RATIO) CAPACITY (RATIO)
INDOOR W.B.(°C)
INDOOR W.B.(°C)
22
20
18
16
22
20
18
16

11
Air flow (CMM)
Re ommended range
200
150
100
50
Hi
Lo
0201517 25 30 35
External stati pressure(Pa) (1Pa = 0.1mmAq)
Fan Performance
Air flow (CMM)
Re ommended range
200
150
100
50
Hi
Lo
0302320 25 35 40
External stati pressure(Pa) (1Pa = 0.1mmAq)
Fan Performance
Air flow (CMM)
Re ommended range
200
150
100
50
Hi
Lo
0352825 30 40 5045
External stati pressure(Pa) (1Pa = 0.1mmAq)
Fan Performance
(2) PEH-4EKHSA2.TH
(3) PEH-5EKHSA2.TH
(1) PEH-2.5EKHA2.TH
PEH-3EKHA2.TH Corrected Air flow
1.05
0.95
1.0
0.9 17 20 25 30
Corre tion fa tor
Capa ity
Input
Cooling
Air flow (CMM)
Corrected Airflow
1.05
0.95
1.0
0.9 2320 25 30 35 40
Corre tion fa tor
Capa ity
Input
Cooling
Air flow (CMM)
Corrected Air flow
1.05
0.95
1.0
0.9 3028 35 40 45 50
Corre tion fa tor
Capa ity
Input
Cooling
Air flow (CMM)
0.95
1.0
1.1
1.05
1.15
3028 35 40 45 50
Corre tion fa tor
Heating
Air flow (CMM)
1.05
1.1
1.15
0.95
1.0
2320 25 30 35 40
Corre tion fa tor
Heating
Air flow (CMM)
1.05
1.15
1.1
0.95
1.0
1.2
17 20 25 30
Corre tion fa tor
Heating
Air flow (CMM)
3. FAN PERFORMANCE AND CORRECTED AIR FLOW

12
Servi e Ref.
Indoor unitOutdoor unit
Indoor unit
Outdoor unit
Mode
Capa ity (W)
Total Input (kW)
Input (kW)
Current (A)
Starting urrent (A)
Input (kW)
Current (A)
Starting urrent (A)
Cool
6,300
2.76
0.35
1.62
2.1
2.41
11.18
52
Heat
6,600
(8,400)
2.51
(4.31)
0.35
(2.15)
1.62
(9.80)
2.1
(10.3)
2.16
10.02
52
Cool
7,500
3.48
0.35
1.62
2.1
3.13
14.67
54
Heat
8,100
(9,860)
3.27
(5.03)
0.35
(2.11)
1.62
(9.58)
2.1
(10.1)
2.92
13.69
54
Cool
7,500
3.48
0.35
1.62
2.1
3.13
5.23
34
Heat
8,100
(9,860)
3.27
(5.03)
0.35
(2.11)
1.62
(9.58)
2.1
(10.1)
2.92
4.88
34
Cool
9,500
3.57
0.40
1.86
2.4
3.17
5.29
37
Heat
10,200
(12,200)
3.56
(5.56)
0.40
(2.40)
1.86
(10.95)
2.4
(11.6)
3.16
5.28
37
Cool
12,200
4.71
0.52
2.47
3.0
4.19
7.32
49
Heat
12,800
(15,300)
4.65
(7.15)
0.52
(3.02)
2.47
(13.7)
3.0
(14.4)
4.13
7.21
49
PEH-2.5EKHA2.TH
PUH-2.5VKA2(.UK) PUH-3VKA2(.UK) PUH-3YKA2(.UK) PUH-4YKSA3(2.UK)PUH-5YKSA3(2.UK)
PEH-3EKHA2.TH PEH-4EKHSA2.TH PEH-5EKHSA2.TH
4. ELECTRICAL DATA
Indoor unit········220V 50Hz 1phase
Outdoor unit ·····220V 50Hz 1phase / 380V 50Hz 3phase
Servi e Ref.
Indoor unitOutdoor unit
Indoor unit
Outdoor unit
Mode
Capa ity (W)
Total Input (kW)
Input (kW)
Current (A)
Starting urrent (A)
Input (kW)
Current (A)
Starting urrent (A)
Cool
6,350
2.81
0.37
1.64
2.2
2.44
10.94
52
Heat
6,650
(8,550)
2.57
(4.47)
0.37
(2.27)
1.64
(9.90)
2.2
(10.5)
2.20
9.86
52
Cool
7,600
3.51
0.37
1.64
2.2
3.14
14.22
56
Heat
8,200
(10,130)
3.30
(5.23)
0.37
(2.30)
1.64
(9.90)
2.2
(10.6)
2.93
13.27
56
Cool
7,600
3.51
0.37
1.64
2.2
3.14
5.21
36
Heat
8,200
(10,130)
3.30
(5.23)
0.37
(2.30)
1.64
(9.90)
2.2
(10.6)
2.93
4.86
36
Cool
9,600
3.61
0.42
1.86
2.5
3.19
5.23
39
Heat
10,300
(12,500)
3.60
(5.80)
0.42
(2.62)
1.86
(11.43)
2.5
(12.1)
3.18
5.22
39
Cool
12,300
4.78
0.58
2.60
3.1
4.20
7.05
51
Heat
12,900
(15,600)
4.73
(7.43)
0.58
(3.28)
2.60
(14.30)
3.1
(14.8)
4.15
6.97
51
PEH-2.5EKHA2.TH
PUH-2.5VKA2(.UK) PUH-3VKA2(.UK) PUH-3YKA2(.UK) PUH-4YKSA3(2.UK)PUH-5YKSA3(2.UK)
PEH-3EKHA2.TH PEH-4EKHSA2.TH PEH-5EKHSA2.TH
Indoor unit········230V 50Hz 1phase
Outdoor unit ·····230V 50Hz 1phase / 400V 50Hz 3phase
Servi e Ref.
Indoor unitOutdoor unit
Indoor unit
Outdoor unit
Mode
Capa ity (W)
Total Input (kW)
Input (kW)
Current (A)
Starting urrent (A)
Input (kW)
Current (A)
Starting urrent (A)
Cool
6,400
2.85
0.39
1.66
2.3
2.46
10.68
52
Heat
6,700
(8,800)
2.62
(4.72)
0.39
(2.49)
1.66
(10.41)
2.3
(11.1)
2.23
9.78
52
Cool
7,700
3.54
0.39
1.66
2.3
3.15
13.82
58
Heat
8,300
(10,400)
3.33
(5.43)
0.39
(2.49)
1.66
(10.41)
2.3
(11.1)
2.94
12.89
58
Cool
7,700
3.54
0.39
1.66
2.3
3.15
5.16
37
Heat
8,300
(10,400)
3.33
(5.43)
0.39
(2.49)
1.66
(10.41)
2.3
(11.1)
2.94
4.81
37
Cool
9,700
3.64
0.44
1.87
2.6
3.20
5.24
40
Heat
10,400
(12,800)
3.63
(6.03)
0.44
(2.84)
1.87
(11.87)
2.6
(12.6)
3.19
5.22
40
Cool
12,400
4.86
0.65
2.76
3.2
4.21
6.89
53
Heat
13,000
(16,000)
4.81
(7.81)
0.65
(3.65)
2.76
(15.20)
3.2
(15.7)
4.16
6.81
53
PEH-2.5EKHA2.TH
PUH-2.5VKA2(.UK) PUH-3VKA2(.UK) PUH-3YKA2(.UK) PUH-4YKSA3(2.UK)PUH-5YKSA3(2.UK)
PEH-3EKHA2.TH PEH-4EKHSA2.TH PEH-5EKHSA2.TH
Indoor unit········240V 50Hz 1phase
Outdoor unit ·····240V 50Hz 1phase / 415V 50Hz 3phase

13
V
A
V
A
Service Ref.
TotalEle tri al ir uitEle tri al ir uitIndoor side
Outdoor side
W
kW
MPa·G
(Of/F·G)
MPa·G
(Of/F·G)
:
:
:
m
D.B.:
W.B.:
D.B.:
D.B.:
W.B.:
Mode
Capa ity
Input
Indoor unit Service Ref.
Phase, Hz
Volts
Amperes
Outdoor unit Service Ref.
Phase, Hz
Volts
Amperes
Dis harge
Pressure
Su tion
Pressure
Dis harge
Temperature
Condensing
Temperature
Su tion
Temperature
Ref. pipe
length
Intake
air temperature
Dis harge air
temperature
Intake air
temperature
SHF
BF
6,400
2.85
6,700
(8,800)
2.62
(4.72)
1.66
10.68
(20.4)
(5.6)
79.6
52.9
8.0
5
27
19
17.3
35
24
0.79
0.31

9.78
(16.0)
(3.7)
68.5
—
-1.9
5
20
15
33.0
7
6
—
—
1.66
(10.41)
Cooling Heating
PEH-2.5EKHA2.TH
PEH-2.5EKHA2.TH

1.50
240
PUH-2.5VKA2(UK) 
1.50
240
7,700
3.54
8,300
(10,400)
3.33
(5.43)
1.66
13.82
(20.9)
(5.0)
85.1
53.7
6.2
5
27
19
16.0
35
24
0.78
0.25
12.89
(17.8)
(3.6)
76.4
—
-2.2
5
20
15
36.9
7
6
—
—
1.66
(10.41)
Cooling Heating
PUH-3VKA2 (.UK)
1.50
240
7,700
3.54
8,300
(10,400)
3.33
(5.43)
1.66
5.16
(20.9)
(5.1)
83.7
54.0
6.2
5
27
19
16.0
35
24
0.78
0.25
4.81
(17.9)
(3.7)
75.9
—
-2.1
5
20
15
36.9
7
6
—
—
1.66
(10.41)
Cooling Heating
PUH-3YKA2 (.UK) 
3.50
415
9,700
3.64
10,400
(12,800)
3.63
(6.03)
1.87
5.24
(18.4)
(5.5)
76.7
48.3
7.1
5
27
19
14.6
35
24
0.80
0.12
5.22
(15.6)
(3.9)
67.5
—
-0.6
5
20
15
37.2
7
6
—
—
1.87
(11.87)
Cooling Heating
PEH-4EKHSA2.TH 
1.50
240
PUH-4YKSA3 (2.UK) 
3.50
415
12,400
4.86
13,000
(16,000)
4.81
(7.81)
2.76
6.89
(20.1)
(4.9)
78.9
52.0
4.6
5
27
19
14.6
35
24
0.74
0.21
6.81
(16.2)
(3.7)
69.9
—
-1.4
5
20
15
37.1
7
6
—
—
2.76
(15.20)
Cooling Heating
PEH-5EKHSA2.TH 
1.50
240
PUH-5YKSA3 (2.UK) 
3.50
415
PEH-3EKHA2.TH
PEH-3EKHA2.TH
1.50
240
PEH-4EKHSA2.TH PEH-5EKHSA2.TH
2.00
0.55
1.57
0.36
2.05
0.49
1.74
0.35
2.05
0.05
1.75
0.36
1.80
0.54
1.53
0.38
1.97
0.48
1.59
0.36
5. STANDARD OPERATION DATA
The unit of pressure has been changed to Mpa based on SI (International System of Units) in accordance with I.S.O.
(International Organization for Standardization).
The conversion factor is : 1(Mpa • G) =10.2 (OOf/FF•G)

14
1. INDOOR UNITS
PEH-2.5EKHA2.TH
PEH-3EKHA2.TH
11 11
105 35
70
44
508 45725.5
50 59
75
(3)
35
286171
3.2
(2 3/8)
60 265(10 1/2) 40 155 155 155 20
(13/16)
10(3/8)
600(24)
100
70 300
900(36)
14524.5 145
22.5
20
672(26 1/2)
(4 3/16)
(13/16)
510(20 1/8)
710(27 15/16)
339(13 3/8)
418(16 1/2)
(11 13/16)
530(7 7/8)
(2 3/4)
200(7 7/8) 200(7/8)130220 128
14
20 20
25 25
15
15
15
90175
130
92
1121
25070
15
25
118 187
381(15) 10(3/8)
2585 85
125 125
(2 3/4)
530(20 7/8) 562(22 1/8)
(8 11/16) (5 1/16)
690(27 3/16)
730(28 3/4)
300(11 13/16)
235(9 1/4) 650(25 5/8)40 40
(3 9/16) 345(13 5/8)
4
5
1
2
3
6
9
8
7
1Refrigerant-pipe flared onne tion [9.52 (3/8)
2Refrigerant-pipe flared onne tion [15.88 (5/8)
3Ele tri al parts box
4Drainage pan
5Drainage pipe onne tion 1BSP (male)
6Servi e panel (Indoor oil thermistor)
7Room temperature thermistor
8Heat insulator t10 (3/8)
9Air intake du t flange
10
Air intake
11
Wiring entry (3-[22 (7/8) holes)
12
Suspension bolt holes (4-[12 (1/2))
13
14-[3 (1/8) holes
14
For air outlet du t onne tion (12-[3 (1/8) holes)
15
Air outlet
16
Mounting plate
17
Air outlet du t flange
18
Heat insulator t10 (3/8)
19
Servi e spa e (opening) in the eiling
20
Servi e panel (Room temperature thermistor)
21
Servi e panel (booster heater)
22
Mounting plate (option)
Unit : mm (inch)
OUTLINES AND DIMENSIONS
5

15
PEH-4EKHSA2.TH
11
90 35
42.5
20
980(38 9 16)
(13/16)
942(37 1 16)
(3 9/16) 795(31 5 16)
345(13 5/8)
4
5
1
2
3
6
7
11✕65(=715)
7✕65(=455)
70 40 40
65 65 65 65 65 65 65 65 65 65 65
200(7 7/8)
530(20-7/8)
130
20 20
65 65 65 65 65 65 65 22.5
15
15
22.5
200(7 7/8)
960(37 13 16)
9
8
44 55 63
85
(3 3/8) 70 245 (2 3/4) (9 5/8)
3.2
98
14 250(9 13 16)
(3 7/8)
1000(3 15 16)
500(19 11 16)
210(8 1 4) 920(36 1 4)40 40
4✕65(=260)
3✕65(=195)
20(13/16)
10(3/8)
39.5
65
339(13 3/8)
418(16 1/2)
15
9017525070
15
27.527.5 381(15) 10(3/8)
65
(2 3/4) (3 9/16)
100
70 300
900(36)
(11 13/16)
530(7 7/8)
(2 3/4)
600(24)
508 45725.5
35286171
130
118 187
92
11
21
562(22 1/8)
1Refrigerant-pipe flared onne tion [9.52 (3/8)
2Refrigerant-pipe flared onne tion [19.05 (3/4)
3Ele tri al parts box
4Drainage pan
5Drainage pipe onne tion 1BSP (male)
6Servi e panel (Indoor oil thermistor)
7Room temperature thermistor
8Heat insulator t10 (3/8)
9Air intake du t flange
10
Air intake
11
Wiring entry (3-[22 (7/8) holes)
12
Suspension bolt holes (4-[12 (1/2))
13
34-[3 (1/8) holes
14
For air outlet du t onne tion (24-[3 (1/8) holes)
15
Air outlet
16
Mounting plate
17
Air outlet du t flange
18
Heat insulator t10 (3/8)
19
Servi e spa e (opening) in the eiling
20
Servi e panel (Room temperature thermistor)
21
Servi e panel (booster heater)
22
Mounting plate (option)
Unit : mm (inch)

16
PEH-5EKHSA2.TH
11 11
90 35
42.5
20
1180(46 7 16)
(13/16)
1142(44 15 16)
(3 9 16) 995(39 3 16)
14✕65(=910)
4✕65(=260)
3✕65(=195)
13✕65(=855)
345(13 5/8)
4
5
1
2
3
6
7
70 40 40
65 65 65 65 65 65 65 65 65 65 65 65 65 65
200(7 7/8) 200(7/8)
130
20 20
65 6565 65 65656565 6565 65 65 65
27.5
15
15
27.5
530(20 7/8)
1160(45 11 16)
9
8
44 55 63
85
(3 3/8) 70 245 (2 3/4) (9 5/8)
3.2
98
14 250(9 13/16)
(3 7/8)
1200(47 1 4)
900(35 7 16)
110(4 5 16) 1120(44 1 8)40 40
20(13/16)
10(3/8)
39.539.5
65
339(13 3/8)
418(16 1/2)
15
90
11
17525070
15
27.527.5 381(15)
65
(2 3/4) (3 9/16)
100
70 300
900(36)
(11 13/16)
530(7 7/8)
(2 3/4)
600(24)
508 45725.5
35286171
130
118 187
92
21
562(22 1/8)
1Refrigerant-pipe flared onne tion [9.52 (3/8)
2Refrigerant-pipe flared onne tion [19.05 (3/4)
3Ele tri al parts box
4Drainage pan
5Drainage pipe onne tion 1BSP (male)
6Servi e panel (Indoor oil thermistor)
7Room temperature thermistor
8Heat insulator t10 (3/8)
9Air intake du t flange
10
Air intake
11
Wiring entry (3-[22 (7/8) holes)
12
Suspension bolt holes (4-[12 (1/2)
13
40-[3 (1/8) holes
14
For air outlet du t onne tion (36-[3 (1/8) holes)
15
Air outlet
16
Mounting plate
17
Air outlet du t flange
18
Heat insulator t10 (3/8)
19
Servi e spa e (opening) in the eiling
20
Servi e panel (Room temperature thermistor)
21
Servi e panel (booster heater)
22
Mounting plate (option)
Unit : mm (inch)

17
Unit : mm (inch)
2. REMOTE CONTROLLER
18
130
Rear side wiring arrangement opening.
120
FILTER
CHECK MODE
TEST RUN
FILTER
CHECK MODE
TEST RUN
46
83.5
SW18
SW17
CAUTION
050

18
PEH-2.5/3/4/5EKH(S)A2.TH
1. Sin e the indoor transformer (T) is onne ted with 240V power, if 220, 230V power is used.
Change the wiring onne tion showing fig : W1.
when power supply is fig :W1
2. Sin e the outdoor side ele tri wiring may hange be sure to he k the outdoor unit ele tri wiring
for servi ing.
3. Indoor and outdoor onne ting wires are made with polarities,make wiring mat hing terminal num-
bers (1 and 2).
4. Symbols used in wiring diagram above are. /:Terminal blo k. :Conne tor, :PC board
insertion tab.
5. Emergen y operation
If a trouble o urs with either the remote ontroller or the indoor mi ro omputer and no other truble
exists. emergen y operation for ooling or heating an be performed by hanging the setting of dip
swit h (SW3<I.B>) on the indoor ontroller board.
(emergen y dry operation is not possible.)
240
230
220
230V
220V
YELLOW
ORANGE
RED
[Che k items]
(1)Make sure that no other trouble exists with the outdoor unit .Trouble with the outdoor unit prevents emer-
gen y operation. (If any trouble exists with the outdoor unit error ode “P8”will be displayed on the remote
ontroller and the trouble position will be shown on the outdoor ontroller board LED. See ele tri wiring
diagram of the outdoor unit for details.)
(2)Make sure that there is no trouble with the indoor fan.
Emergen y operation will be a ontinuous run with the power ON/OFF (ON/OFF with the remote ontroller
is not possible).
[Emergen y operation pro edure]
(1) Set the dip swit h (SW3<I.B>) on the indoor ontroller board to 1•2•3on and 4off for ooling, and
2•3•4on and 1off for heating.
(2) Turn on the outdoor unit side ir uit breaker.
(3) During emergrn y operation indoor fan runs at High speed.
(4) Thermostat will not fun tion. Cold air blows out for defrosting during heating thus do not operate defrost-
ing for a long time.
(5) Emergen y ooling should be limited to 10 hours maximum(the indoor unit heat ex hanger may freeze).
123
123
2
1
35
3
2
1
45
AO1 BO2
BLU
RED
RED
88H FS H
T
C
SR
26H
RED
BLU
GRN/YLW
BLU
BLU
BRN
ORN
YLW
YLW ORN RED
RED RED BLU YLW YLW
YLW YLW
YLW
WHT ORN RED BRN BRN BRN
WHT
I.B
TB6
TB5
TB4
TB2
R.B
SW18 CN51
CENTRALLY
CONTROL
CN21
PIPE
DRAIN CN50
HEATER
CN24
CN1
14.5VAC 10.8VAC
CN2
4321ON
OFF
SW17
43218765 ON
OFF
SW3
4321
SW6
4321
SW5
4321
SW2
432156
SW1
43218765109
OFF
ON
INDOOR UNIT
REMOTE CONTROLLER
TRANSMISSION WIRES DC12V
TO OUTDOOR UNIT
CONNECTING WIRES
DC 12V(polar)
POWER SUPPLY
~ (1 PHASE)
AC220~240V
50Hz
L
N
1
2
MF
88H
312456
65
21
21
CN20
INTAKE
TRANS
CN4T
OUTDOOR
CN30
21
231 2341
REMOCON
POWER
CN40
TO
REMOCON
CN22
CN2L
LOSSNAY
2341
23451
6
BLU BRN BLK
WHT
RED ORN
X6 X5 X4
X6 X5 X4
ZNR
RT1 RT2
F
TRANS M3 M2 M1 M0
SYMBOL
C
CN1<R.B>
CN2<R.B>
CN2L<I.B>
CN51<I.B>
F<I.B>
FS
H
I.B
LCD
MF
R.B
SW1<I.B>
SW2<I.B>
SW3<I.B>
SW5<I.B>
SW6<I.B>
NAME
FAN MOTOR CAPACITOR
PROGRAM TIMER CONNECTOR
REMOTE SWITCH CONNECTOR
LOSSNAY CONNECTOR
CENTRALLY CONTROL CONNECTOR
FUSE 16.3A 250V
THERMAL FUSE
ELECTRIC HEATER
INDOOR CONTROLLER BOARD
LIQUID CRYSTAL DISPLAY
INDOOR FAN MOTOR
REMOTE CONTROLLER BOARD
MODE SELECTOR
ADDRESS SELECTOR
EMERGENCY OPERATION SWITCH
MODEL SELECTOR
MODEL SELECTOR
SYMBOL
SW17<R.B>
SW18<R.B>
T
TB2
TB4
TB5.6
RT1
RT2
X4<I.B>
X5<I.B>
X6<I.B>
ZNR<I.B>
88H
NAME
ADDRESS SELECTOR
FUNCTION SELECTOR
TRANSFORMER
POWER SUPPLY TERMINAL BLOCK
INDOOR/OUTDOOR CONNECTING WIRE
TERMINAL BLOCK
REMOTE CONTROLLER TRANSMISSION
LINE TERMINAL BLOCK
ROOM TEMPERATURE THERMISTOR
(0:/15kΩ. 25 :/5.4kΩ)
INDOOR COIL THERMISTOR
(0:/15kΩ. 25 :/5.4kΩ)
FAN MOTOR AUXILIARY RELAY
FAN MOTOR AUXILIARY RELAY
FAN MOTOR AUXILIARY RELAY
VARISTOR
ELECTRIC HEATER CONTACTOR
SYMBOL
26H NAME
OVER HEAT PREVENTION THERMAL
SWITCH
WIRING DIAGRAM
6

19
PEH-2.5EKHA 2 .TH/PUH-2.5 VKA 2 (.UK)
PEH-3EKHA
2 .TH/PUH-3 VKA 2 (.UK)
PUH-3 YKA 2 (.UK)
Outdoor unit
Outdoor unit
Outdoor unit
Indoor
heat
ex hanger
Thermistor
TH2 Distributor
with strainer
Capillary
tube
Capillary
tube
Restri tor
valve
Restri tor
valve
Strainer
Strainer
Strainer
4-way valve
Oil separator
Flared 
onne tion
Flexible tube

(option)
15.88mm( 5/8¨)
(With heat insulator)
Refrigerant pipe
(option)
 9.52 mm( 3/8¨)
(With heat insulator)
Refrigerant pipe
Ball Valve
Servi e
port
Servi e
port
High pressure
ontrol swit h
Ball Valve
(with servi e port)
A umulator
Outdoor heat ex hanger
Bypass valve
Thermistor
RT
Compressor
PEH-2.5 (O.D. 3.2✕ I.D. 1.8 -R430)
PEH-3 (O.D. 4.2✕ I.D. 2.0 -R400)
PUH-2.5 
(O.D. 4.0✕ I.D.2.4 -R1550 )
PUH-3 
(O.D. 4.0✕ I.D.2.4 -R1070 )
Refrigerant flow in ooling R.V. oil
Heating:ON
Cooling:OFF
Refrigerant flow in heating
PEH-4EKHSA 2 .TH/PUH-4YKSA 3 ( 2 .UK)
Indoor
heat
ex hanger
Thermistor
TH2 Distributor
with strainer
Capillary
tube
Capillary
tube
Restri tor
valve
Restri tor
valve
Strainer
Strainer
Strainer
4-way valve
Oil separator
Flared 
onne tion
Flexible tube

Flexible tube

(option)
19.05mm( 3/4¨)
(With heat insulator)
Refrigerant pipe
(option)
 9.52 mm( 3/8¨)
(With heat insulator)
Refrigerant pipe
Ball Valve
Servi e
port
Servi e
port
High pressure
ontrol swit h
Ball Valve
(with servi e port)
A umulator
Outdoor heat ex hanger
Bypass valve
Thermistor
RT
Compressor
PEH-4 (O.D. 4.0✕ I.D. 2.4 -R550)
PUH-4
(O.D. 3.2✕ I.D. 2.0
-R820 ) ✕ 2p s
PEH-5EKHSA 2 .TH/PUH-5YKSA 3 ( 2 .UK)
Indoor unit
Indoor unit
Indoor unit
Indoor
heat
ex hanger
Thermistor
TH2 Distributor
with strainer
Capillary
tube
Capillary
tube
Restri tor
valve
Restri tor
valve
Strainer
Strainer
Strainer
THERMAL
SWITCH
4-way valve
Oil separator
Flared 
onne tion
Flexible tube

Flexible tube

(option)
19.05mm( 3/4¨)
(With heat insulator)
Refrigerant pipe
(option)
 9.52 mm( 3/8¨)
(With heat insulator)
Refrigerant pipe
Ball Valve
Servi e
port
( he k)
Servi e
port
High pressure
ontrol swit h
Ball Valve
(with servi e port)
A umulator
Outdoor heat ex hanger
Bypass valve
Capillary tube
Thermistor
RT
Compressor
PEH-5 (O.D. 4.0✕ I.D. 3.0 -R330)
PUH-5
(O.D. 4.0✕ I.D. 2.4
-R840 ) ✕ 2p s
7 REFRIGERANT S STEM DIAGRAM
Unit : mm

20
START
Power ir uit
breaker
Che k SW
ON twi e
Operation SW
ON
“OFF” timer

“ON” timer

STOP

Set time
omplete

Set time
omplete

1
NO
NO
NO NO
NO
NO
NO
NO
NO NO
NO
NO
YES
w1
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
PROTECTION DEVICE
SELF HOLD RELEASE

Remote ontroller
indi ator lamp OFF

Trouble STOP
Remote ontroller
operation display
Operating mode
(COOL)
Operating mode
(DRY)
Operating mode
(HEAT)
Operating mode
(FAN)
Auto COOL/HEAT
operation
COOL operation

DRY operation

HEAT operation

FAN operation

Trouble
PROTECTION DEVICE
SELF HOLD

Remote ontroller
trouble display
Indoor side

Outdoor side

Fan STOP
Auxiliary heater OFF
Compressor OFF
Fan STOP
Four-way valve OFF
w2
w3
w6
w4
w5
w7
MAIN OPERATION
w1 In addition, the entralized ontrol and remote ontrol an be operated.
w2 The modes whi h indi ate the sour es of trouble are listed below.
● EO-Signal transmitting/re eiving error
● P1-Room temperature thermistor malfun tion
● P2-Indoor oil thermistor malfan tion
● P4-Drain sensor malfun tion
● P5-Drain overflow
● P6-Coil frost/overheat prote tion
● P7-System error
● P8-Outdoor unit trouble
w3 The CHECK swi h will show if an error has o urred in the past.
w4 Fan runs on low speed for 1 minute in order to remove overheat air.
w5 The 3-minute (6 minutes …heating mode) time-delay fun tions after ompressor stops.
w6 FAN or AUTO mode is sele ted by the indoor dipswit h setting.
w7 In FAN mode, fan speed depend 3 on the remote ontroller setting. (Compressor is OFF.)
8 OPERATION FLOW-CHART