Mitsubishi Electric Mr. Slim PED-2EJA1.UK Operating manual

SPLIT-TYPE, AIR CONDITIONERS
ADVANCE AND EVER ADVANCING
TECHNICAL & SERVICE MANUAL
<indoor unit> Service ref.
Models PED-2EJA1.UK
PED-2.5EJA1.UK
The Slim Line.
From Mitsubishi Electric TM
1. FEATURES ················································· 1
2. PART NAMES AND FUNCTIONS ·············· 2
3. SPECIFICATIONS ······································ 4
4. DATA ··························································· 5
5. REFRIGERANT SYSTEM DIAGRAM ······· 8
6. OUTLINES AND DIMENSIONS ················· 9
7. WIRING DIAGRAM ···································· 10
8. DISASSEMBLY INSTRUCTIONS ············· 11
9. PARTS LIST ·············································· 14
10 . MICROPROCESSOR CONTROL·············· 19
11 . TROUBLE SHOOTING ······························25
12 . OPTIONAL PARTS ···································· 27
CONTENTS
INDOOR UNIT
REMOTE CONTROLLER
This manual does not cover the
following outdoor units. When
servicing them, please refer to
the service manual No.OC149B
and this manual as a set.
PU-2VJA2.UK
PU-2.5VJA2.UK
2000

1
1. TOTALLY INVISIBLE INDOOR UNIT BEHINDTHE CEILING
The totally hidden indoor unit that lies above the ceiling surface enables you to utilize full floor space while allowing for
flexible interior design.This new feature is recommended for stores and offices where the user's own imagination is
allowed to be incorporated.
2. MOST SUITABLE FOR SIMULTANEOUS TWO ROOM AIR CONDITIONING
Using air ducts for cooling airflow that matches the structure and purpose of the room, enables you to provide two air
outlets for simultaneous cooling of two rooms.
3. HIGH EXTERNAL STATIC PRESSURE
The exceptional external static pressure of 70Pa allows long ducts to be used more extensively to achieve convenient
location of indoor units. (The factory setting is 30Pa.)
4. DRAIN WATER LIFT-UP MECHANISM (OPTION KIT)
This allows more versatility when selecting drain piping layouts.
FEATURES
1
lndoor unit Remote controller
Models W Btu/h Cooling capacity (240V)
PED-2EJA1.UK
PED-2.5EJA1.UK 5,500
6,500 18,800
22,200
air outlet air outlet
Air outlet duct Air intake duct
air intake

2
5. ADVANCED MICROPROCESSOR CONTROL
(1) Ultra - thin 12mm(1/2" )remote controller.
(2) Attractive LED display .
Every operation condition is indicated on the LED display.
(3) Simultaneous display of set temperature and room temperature.
(4) Convenient 12 - hour ON-OFF timer.
This convenient timer allows the unit to be switched on and off automatically,at the time you set. Once the
timer is set,the remaining time is shown on the LED display..
(5) Self - diagnostic function indicates problems instantly on remote controller.
(6) The useful memory feature can store instructions.
The previous set value is memorized so that constant temperature control can be obtained. For example,if a
power failure occurs, this feature will conveniently memorize the previous temperature and reset accordingly.
(7) There is a polar 12 core - conductor cable between the remote controller and indoor board.The cable can be
extended up to 50m.(option)
PART NAMES AND FUNCTIONS
2
●Indoor Unit
Air intake
(sucks the air from inside the room into the unit)
Air outlet
or

3
● Remote controller
● Operation buttons
●Settings remain in effect until changed. Air conditioner can
be operated by simply pushing ON/OFF button once settings
have been made.
(Example display readings are for explanations only
;actual display readings will differ.)

4
3SPECIFICATION
Model PED-2.5EJA
1
.UKPED-2EJA
1
.UK
Item
Cooling capacity 4 Btu/h 22,200
W 6,500
Total input 4 kW 2.69
Power supply ~/N, 50Hz, 220-240V
Input kW 0.17
Running current A 0.72
Starting current A 1.6
External finish Galvanized sheets
Heat exchanger Plate fin coil
Plate fin coil
Fan (drive) ~No. Centrifugal (direct)x2
Fan motor output 1 kW 0.116
Airflow (Low-High) CMM,(CFM) 17-21 (600-740)
External static pressure 2 Pa(mmAq) 30(3)/70(7) at Hi-notch
Operation control & Thermostat Remote control&Built-in
Noise level (Low-High) 3, 5 dB (A) 37-41
Cond. drain conn. O.D. mm, (in) 32(1-1/4)
W mm, (in) 1175(46-1/8)
Dimensions D mm, (in) 700(27-9/16)
H mm, (in) 295(11-5/8)
Weight kg, (lbs) 42(93)
Model name
Power supply
Input kW
Running current A
Starting current A
2.52
10.7
52
External finish Munsell 5Y 7/1
Refrigerant control Capillary tube
Compressor Hermetic
Model
Motor output kW
Starter type Line Start
Protection devices Inner thermostat,HP switch,LP switch
Heat exchanger
Fan (drive) ~No.
Fan motor output kW 0.085
Airflow CMM,(CFM) 50(1765)
Noise level dB (A) 52
W mm, (in) 870(34-1/4)
Dimensions D mm, (in)
H mm, (in) 850(33-7/16)
Weight kg, (lbs) 71(157)
Refrigerant R-22
Charge kg, (lbs) 2.4(5.29)
Pipe size O.D. Liquid mm, (in) 9.52(3/8)
Gas mm, (in)
(m)
(m)
Connection method Indoor side Flared
Outdoor side Flared
Between the indoor Height difference
& outdoor unit Piping length
18,800
5,500
2.63
0.15
0.63
1.1
0.076
13.5- 17(476-600)
36-40
935(36-13/16)
700(27-9/16)
295(11-5/8)
33(73)
PU-2VJA.UK PU-2.5VJA.UK
~/N
50Hz
220-240V
2.48
10.8
52
~/N
50Hz
220-240V
NHJ41VMDT
1.9
Propeller(direct)X1 Propeller(direct)X1
0.065
45(1588)
49
870(34-1/4)
295+24(11-5/8 add 1) 295+24(11-5/8 add 1)
650(25-5/8)
60(132)
1.78(3.92)
15.88(5/8)
30
30
1. External static pressure at 70Pa. 4.Rating condition <JIS B 8615>
2. Ex-works at 30Pa. INDOOR: 27 ˚CDB, 19 ˚CWB
3. External static pressure at 30Pa. OUTDOOR: 35 ˚CDB
5.Noise level : Sound pressure level
INDOOR UNIT
OUTDOOR UNIT
REFRIGERANT
PIPING
✻
✻
✻
✻✻
✻
✻
✻
✻
✻
✻

5
4DATA
Service Ref. Indoor intake air
WB˚C 20 25 30 35 40 45
CA P.C. CA P.C. CA P.C. CA P.C. CA P.C. CA P.C.
1. PERFORMANCE DATA
1) COOLING CAPACITY
Note C A: Capacity(W)
P.C.: Power consumption(kW)
Service Ref. Refrigerant piping length(one way)
5m 10m 15m 20m 25m 30m
2) COOLING CAPACITY CORRECTION FACTORS
16
18
20
22
PED-
2.5EJA1.UK
5,599
5,957
6,320
6,688
6,617
7,039
7,468
7,904
2.13
2.17
2.21
2.25
2.18
2.22
2.26
2.30
5,445
5,803
6,171
6,562
6,435
6,858
7,355
7,754
2.22
2.27
2.30
2.35
2.27
2.32
2.36
2.40
5,225
5,566
5,929
6,309
6,175
6,578
7,007
7,456
2.38
2.44
2.49
2.54
2.43
2.49
2.54
2.60
4,989
5,324
5,676
6,050
5,896
6,292
6,708
7,150
2.54
2.61
2.66
2.72
2.60
2.66
2.72
2.79
4,741
5,071
5,418
5,786
5,603
5,993
6,403
6,838
2.70
2.77
2.84
2.92
2.76
2.83
2.90
2.98
4,488
4,813
5,154
5,511
5,304
5,688
6,091
6,513
2.15
2.30
2.47
2.63
2.20
2.36
2.52
2.70
16
18
20
22
PED-
2EJA1.UK
PED- 2.5EJA1.UK
1.00 0.983 0.972 0.961 0.951 0.940
PED- 2EJA1.UK
1.00 0.985 0.975 0.964 0.954 0.944
Outdoor intake air DB˚C
2. PERFORMANCE CURVE (CAPACITY RATIO & TOTAL INPUT RATIO)
PED-2EJA1.UK
PED-2.5EJA1.UK
Cooling
1.4
1.2
1
0.8
0.6
1.4
1.2
1
0.8
0.6
0.4
22
20
18
16
22
20
18
16
INDOOR WB (˚C)
INDOOR WB (˚C)
CAPACITY(RATIO)
TOTAL INPUT(RATIO)
OUTDOOR DB (˚C)
-5 5 15 25 35 46

6
Fan Performance <30Pa>
External static pressure (Pa)
(1Pa 0.1mmAg)
Air Flow (CMM)
6 8 10 12 14 16 18 20
8 10121416 1820 22
20
40
60
80
100
120
140
0.8
0.9
1.0
1.1
Corrected Air Flow Capacity
input
Cooling
Air flow (CMM)
Correction factor
Fan Performance <70Pa>
External static pressure (Pa)
(1Pa 0.1mmAg)
Air Flow (CMM)
8 10121416182022
8 10121416 1820 22
20
40
60
80
100
120
140
160
0.8
0.9
1.0
1.1
1.2
1.3 Heating
Air flow (CMM)
Correction factor
3. FAN PERFORMANCE AND CORRECTED AIR FLOW
PED-2EJA1.UK
Fan Performance <30Pa>
External static pressure (Pa)
(1Pa 0.1mmAg)
Air Flow (CMM)
8 1012141618202224
12 14 16 18 20 22 24 26
20
40
60
80
100
120
0.8
0.9
1.0
1.1
Corrected Air Flow Capacity
input
Cooling
Air flow (CMM)
Correction factor
Fan Performance <70Pa>
External static pressure (Pa)
(1Pa 0.1mmAg)
Air Flow (CMM)
10 12 14 16 18 20 22 24 26
12 14 16 18 20 22 24 26
20
40
60
80
100
120
140
0.8
0.9
1.0
1.1
1.2
1.3 Heating
Air flow (CMM)
Correction factor
PED-2.5EJA1.UK

7
Models Indoor
Outdoor
Capacity(W)
Total input(kW)
Input(kW)
Current(A)
Starting current(A)
Input(kW)
Current(A)
Starting current(A)
IndoorOutdoor
Indoor ······220V 50Hz 1phase
Outdoor ···220V 50Hz 1phase
Models Indoor
Outdoor
Capacity(W)
Total input(kW)
Input(kW)
Current(A)
Starting current(A)
Input(kW)
Current(A)
Starting current(A)
IndoorOutdoor
Indoor ······230V 50Hz 1phase
Outdoor···230V 50Hz 1phase
Models Indoor
Outdoor
Capacity(W)
Total input(kW)
Input(kW)
Current(A)
Starting current(A)
Input(kW)
Current(A)
Starting current(A)
IndoorOutdoor
Indoor·······240V 50Hz 1phase
Outdoor···240V 50Hz 1phase
PED-2.5EJA1.UKPED-2EJA1.UK PU-2.5VJAPU-2VJA
PED-2.5EJA1.UKPED-2EJA1.UK PU-2.5VJAPU-2VJA
PED-2.5EJA1.UKPED-2EJA1.UK PU-2.5VJAPU-2VJA
5,400
2.57
0.13
0.60
1.05
2.44
11.3
48
6,300
2.61
0.15
0.69
1.53
2.46
11.4
48
5,450
2.60
0.14
0.61
1.07
2.46
11.0
50
6,400
2.65
0.16
0.70
1.56
2.49
11.0
50
5,500
2.63
0.15
0.63
1.10
2.48
10.8
52
6,500
2.69
0.17
0.72
1.60
2.52
10.7
52
4. ELECTRICAL DATA

8
PED-2EJA1.UK
PED-2.5EJA1.UK
Strainer
Refrigerant pipe
(option)
9.52mm(3/8)
(With heat insulator)
Flexible tube
Flared
connection
Thermistor
RT2
Distributor
Refrigerant pipe
(option)
15.88mm(5/8)
(With heat insulator)
Indoor unit
5. STANDARD OPERATION DATA (COOLING)
Models
TotalElectrical circuitRefrigerant circuit
Indoor side
Outdoor
side
SHF
BF
Capacity
Input
Indoor unit model
Phase Hz
Volts
Amperes
Outdoor unit-model
Phase,Hz
Volts
Amperes
W
kW
Discharge pressure
Suction pressure
Discharge temperature
Condensing temperature
Suction temperature
Ref.Pipe length
Intake air temperature
Intake air temperature
Diischarge air temperature
MPa
MPa
˚C
˚C
˚C
m
DB˚C
WB˚C
DB˚C
DB˚C
WB˚C
PED-2EJA1.UK
5,500
2.63
PED-2EJA
1, 50
240
0.63
PU-2VJA
1, 50
240
10.8
1.98
0.46
77.3
52.5
15.3
5
27.0
19.0
14.8
35.0
24.0
0.74
0.32
PED-2.5EJA1.UK
6,500
2.69
PED-2.5EJA
1, 50
240
0.72
PU-2.5VJA
1, 50
240
10.7
2.00
0.51
78.6
53.1
8.5
5
27.0
19.0
16.0
35.0
24.0
0.71
0.27
REFRIGERANT SYSTEM DIAGRAM
5