Mitsubishi Electric Mr. Slim PED-2EJA1.UK, Mr. Slim PED-2.5EJA1.UK Service Manual

SPLIT-TYPE, AIR CONDITIONERS

ADVANCE AND EVER ADVANCING

TECHNICAL & SERVICE MANUAL

<indoor unit> Service ref.

Models

PED-2EJA1.UK
PED-2.5EJA

1

.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-2.5VJA

2.UK

2000

1

1. TOTALLY INVISIBLE INDOOR UNIT BEHIND THE 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-2.5EJA

1

.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

3

SPECIFICATION

Model

PED-2.5EJA

1

.UKPED-2EJA1.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

4

DA T A

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

PED­2EJA1.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-2EJA

1.UK

PED-2.5EJA

1.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 101214161820 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 101214161820 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-2.5EJA

1

.UKPED-2EJA1.UK

PU-2.5VJAPU-2VJA

PED-2.5EJA

1

.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-2.5EJA

1.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-2.5EJA

1

.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

9

10

10

30

15

256

17640

A

81 C B 81

29

22761

81

A
E 1313

163

282

85

45 80

277

21

30 640 30

24

35

10

179

109

10

3.53.5

256

288

40176

Set

10-ø3 (1.6, 2HP)
12-ø3 (2.5HP)

10-ø3 (1.6, 2HP)
12-ø3 (2.5HP)

450

450

A
C B 81

10

C

30D

In case of bottom inlet

In case of rear inlet

10-ø3 (1.6, 2HP)
12-ø3 (2.5HP)

(14✕22)

Lifting bolt hole

8

8

Air inlet

35556

10

81B

365~465

159

18

44 75

7

6

7

5

6

5

4

3

2

1

Refrigerant piping flare connection (liquid ø9.52 copper tube):HP
Refrigerant piping flare connection (gas ø15.88 copper tube):LP
Drain R1(External thread)
Electrical parts box
Electric Heater···Only PEHD-EKHA Type
Drain Pump (Option)
Drain Pipe (Option)···Use VP25(O.D.ø32 PVC TUBE)
Filter

Keep duct-work length 850mm or more.
Be sure to apply the air filter (field supply) near the air inlet grille.

Service space:500 or more

197

81

50~150

55

Access door

Air outlet

Air inlet

4

3

1

2

PED-2
PED-2.5

Model

1012

772 305

280 290

830

1070

804

1044

-

ABCDE

6

OUTLINES & DIMENSIONS

1. INDOOR UNIT
PED-2EJA

1.UK

PED-2.5EJA1.UK

2. REMOTE CONTROLLER