Mitsubishi PL-1.6KJB.UK, PL-2KJB.UK, PL-2.5KJB.UK Service Manual

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Page 1

TECHNICAL & SERVICE MANUAL

SPLIT-TYPE, AIR CONDITIONERS

CONTENTS

1. FEATURES ···········································2

2. PART NAMES AND FUNCTIONS········3

3. SPECIFICATIONS·································5

4. DATA·····················································7

5. OUTLINES AND DIMENSIONS··········10

6. WIRING DIAGRAM·····························12

REFRIGERANT SYSTEM DIAGRAM

······13

8. OPERATION FLOW-CHART··············14

9. MICROPROCESSOR CONTROL·······17

10. TROUBLESHOOTING ························25

11. 4-WAY AIR FLOW SYSTEM ···············27

12. DISASSEMBLY PROCEDURE···········28

13. PARTS LIST········································31

14. OPTIONAL PARTS·····························35

Indoor unit [Model names]

PL-1.6KJB PL-2KJB PL-2.5KJB

[Service Ref.]

PL-1.6KJB.UK PL-2KJB.UK PL-2.5KJB.UK

No. OC146

1997

This manual does not cover the following outdoor units. When serving them, please refer to the service manual No.OC149 and this manual in a set. <Service Ref.> PU-1.6VLJA

2.UK

PU-2VJA

2.UK

PU-2NJA

1.UK

PU-2.5VJA

2.UK

PU-2.5NJA

1.UK

INDOOR UNIT

Ceiling Cassettes

Series PL

MITSUBISHI ELECTRIC

12 11 10

9 8 7 6 5 4 3 2 1

29 28 27 26 25 24 23 22 21 20 19 18

TIMER TEMP

TIMER/TEMP.

DOWN

POWER

COOL

ON/OFF

LOUVER

MODE

SELECT

FAN

SPEED

TIMER

MODE

DRY FAN

HIGH

LOW

AUTO STOP

START

REMOTE CONTROLLER

The Slim Line. From Mitsubishi Electric.

Page 2

FEATURES

Indoor unit

Ceiling Cassettes

Series PL

Remote controller

MITSUBISHI ELECTRIC

12 11 10

9 8 7 6 5 4 3 2 1

29 28 27 26 25 24 23 22 21 20 19 18

TIMER TEMP

TIMER/TEMP.

DOWN

POWER

COOL

ON/OFF

LOUVER

MODE

SELECT

FAN

SPEED

TIMER

MODE

DRY FAN

HIGH

LOW

AUTO STOP

START

1.PURSUING COMPACTNESS

(1)Panel size and body volume reduced to 64% of previous models

The width and depth of the panel have been reduced by 19cm respectively,resulting in a compact model which fits smaller environments (like shops) perfectly.

(2)Multi-application panels flexibly adapt to installation conditions.

Space panel and Wide panel may be installed on ceilings with shallow depth using the exiting opening .

2."SMUDGE-FREE", PRECISELY TARGETED AIRFLOW SYSTEM

The new control system regulates airflow to prevent smudging. A projection inside the air passage distributes air evenly over the top and bottom of the vane. Two projections on the air outlet work to prevent cooled air from rising to the celling, and also to stop outside air being dragged into the cooled air stream.

3.AIRFLOW ADJUSTABLE TO ANY INDOOR ENVIRONMENT

Airflow can be adjusted according to celling height and the number of air outlets. "Wide Zoming Flow" creates an optimum airflow for any indoor environment.

4.A FURTHER REFINEMENT OF COMFORT WITH NOISE SUPPRESION

The celling 4-way airflow cassette has a special "silent-design". The "2-Tap"system allows a choice between silent and standard modes according to the height of the cellig. For ordinary residenced which have a low celling, selection of the silent mode will result in remarkable noise reductions.

5.ECONOMICAL AND EASY MAINTENANCE

(1)Push-open grill

Filter clogging is widely recognized as a cause of reduced perfomance, but up until now it has been troublesome to clean filters. With the "push-open grill" the fillter can be smoothly opened out at the push of a button, enabling speedy cleaning.

(2)An unprecedented level of vane-cleaning

The unique airflow system prevents the intake of indoor air. Dewing therefore does not occur, and the vane is flockless. The resulting level of dirt on the vane due to tobacco smoke, dust, etc. is very light,and can be wiped off easily with a neutral detergent.

(3)Long-life filter

This new celling 4-way airflow cassette employs a long life fillter which requires no maintenance for up to 2,500 hours of operation in general office environments. It adds uo to an ideal blend of comfort and low maintenance.

Service Ref.

Cooling capacity (50/60Hz)

3,800/ – 5,600/5,400 6,500/7,000

13,000/ – 19,100/18,400 22,200/23,900

Btu/h PL-1.6KJB.UK PL-2KJB.UK PL-2.5KJB.UK

Page 3

PART NAMES AND FUNCTIONS2

6.COMPACT DIMENSIONS MEAN EASY INSTALLATION

(1)Carefree suspension work with lightweight unit

The new unit weighs in at 20kg and is easy to handle and install. What's more, suspension work is facillitated by compact dimensions ensuring a snug fit.

(2)Smooth installation with "one-direction"bolts

Suspension bolts can be fixes consistently from one direction easing suspension work.

(3)Trouble-free fitting work with slender refrigerant piping

Refrigerant piping has been reduced in size, and pipe-curving work at the installation site can now be completed quickly and economically. In addition, refrigerant and drain piping are set at different corners, which means that flare connections and drain piping heat insulation work can be smoothly and reliably implemented.

(4)Easy-access terminal and control panels for efficient wiring

When performing wiring work, progress can be checked on the power source terminal and control panels simply by removing the electrical parts cover. Address setting can also be done easily from beneath at a convenient angle.

(5)"One-push"to provisionally position front panel

Panel weight has been redused from 7kg to 3.7kg. The previous 3-step process for provisionally positioning the panel has been streamlined, and now a simple "one-push" action at the diagonal corners fixed it into place, resulting in major time-saving.

● Indoor Unit PL-1.6KJB.UK

PL-2KJB.UK PL-2.5KJB.UK

Auto Air Swing Vane Disperses airflow up and down and adjusts the angle of airflow direction.

Grill

Filters Remove dust and pollutants from inhaled air

Horizontal Air Outlet Sets airflow horizontal automatically during cooling or dehumidifying.

Downward Air Outlet Sets airflow downward automatically during heating.

Air Intake Inhales air from room.

Page 4

Attention

● Pressing the UP and DOWN buttons together for more than two seconds will initiate the “test run” or “self-diagnostic” mode. Avoid pressing these buttons simultaneously during normal operation. Press the ON/OFF button to cancel test run or selfdiagnostic mode.

●All green lamps turn off when air conditioner is OFF.

●Avoid operation of buttons with fingernails or other sharp objects. Sharp objects may scratch operating panel.

● Controller

Settings remain in effect' until changed. The air conditioner can be operated by simply pressing ON/OFF button once settings have been made.

MITSUBISHI ELECTRIC

12 11 10

9 8 7 6 5 4 3 2 1

29 28 27 26 25 24 23 22 21 20 19 18

TIMER TEMP

TIMER/TEMP.

DOWN

POWER

COOL

ON/OFF

LOUVER

MODE

SELECT

FAN

SPEED

TIMER MODE

DRY FAN

HIGH

LOW

AUTO STOP

START

This button is used to

change between display of room temperature and

display of remaining time

on the timer during “AUTO

STOP” operation. Green lamps light in selected display mode.

TIMER/TEMP. button

Pressing button starts operation. Pressing again stops operation. Green lamp remains lit during operation.

ON/OFF button

This button is used to change between cooling, DRYING and ventilation operation modes. One of three green lamps lights to indicate mode in effect.

MODE SELECT button

This button is used to change between low and high fan speeds. One of two green lamps lights to indicate which fan speed is in effect.

FAN SPEED button

Used to select timed starting or stopping. Green lamp lights to indicate timer mode selected.

TIMER MODE button

This button is used to switch swing louver ON/OFF.

LOUVER button

●Temperature control (While green “TEMP” lamp

is lighting.) Use UP and DOWN buttons to set desired temperature between 18 and 29 °C.

●Timed operation (While green “TIMER“ lamp is

lighting.) Use UP and DOWN buttons to set timed operation between one and twelve hours.

UP and DOWN buttons

Lamps indicate time remaining

until timer stops operation.

Green lamps display the

remaining number of hours.

Lamps display temperature

settings actual room temperatures.

●Temperature settings : Green lamps light.

●Temperature in room : Green lamps flash.

(Example display readings are

for explanations only, so actual display readings will differ.)

Lamps display remaining time on the timer or room temperature. Remaining timer time display

Room temperature display

Display panel

Operating panel

Page 5

SPECIFICATIONS5

Service Ref.

External finish Fan motor output

Airflow Lo-Hi

External static pressure Operation control & Thermostat

Noise level Low-High

Cond. drain connection OD

Dimensions

Weight External finish

Dimensions

Weight

Service Ref.

External finish Refrigerant (R-22) control Crankcase Heater w4 Compressor output Protection devices Fan motor output

Airflow

Noise level

Dimensions

Weight

Btu/h

CMM

CFM

CMM

CFM

mmAq,Pa

dB(A)

dB(A) mm(in.) mm(in.) mm(in.) mm(in.) kg(lbs.)

mm(in.) mm(in.) mm(in.) kg(lbs.)

kW CMM(CFM) CMM(CFM)

dB(A) mm(in.) mm(in.) mm(in.) kg(lbs.)

50Hz

60Hz

50Hz

60Hz

50Hz 60Hz

D H

50/60Hz

50Hz 60Hz

50/60Hz

D H

3,800

13,000

– – – –

1.54/–

PL-1.6KJB.UK

0.03

13-15

460-530

13-15

460-530

31-35 31-35

32 (1-1/4)

660 (26) 660 (26) 253 (10)

19 (42)

760 (30) 760 (30)

30 (1-1/8)

3.7 (8)

PU-1.6VLJA

2.UK

–

1.2/-

0.065 45(1588) 45(1588)

49/–

870(34-1/4)

650(25-5/8)

45(99)

5,600

19,100

5,400

18,400

4,500

15,400

2.57/2.59

PL-2KJB.UK

Galvanized sheets with gray heat insulation

0.03

13-16

460-565

13-16

460-565

0 (Direct blow)

Remote control & Built-in

32-37 32-37

32 (1-1/4)

660 (26) 660 (26) 253 (10)

19 (42)

Munsell 0.70Y 8.59/0.97

760 (30) 760 (30)

30 (1-1/8)

3.7 (8)

PU-2VJA2.UK, 2NJA1.UK

Munsell 5Y7/1

Capillary tube

32/–

2.0/1.5

0.065 45(1588) 45(1588)

49/50

870(34-1/4)

295+24(11-5/8+1)

650(25-5/8)

60(132)

6,500

22,200

7,000

23,900

5,950

20,300

2.59/3.05

PL-2.5KJB.UK

0.03

14-17

495-600

14-17

495-600

35-39.5 35-39.5

32 (1-1/4)

660 (26) 660 (26) 253 (10)

20 (44)

760 (30) 760 (30)

30 (1-1/8)

3.7 (8)

PU-2.5VJA2.UK, 2.5NJA1.UK

32/–

2.0/1.7

0.085 50(1765) 50(1765)

52/53

870(34-1/4)

850(33-7/16)

71(157)

Inner thermostat, HP switch, LP switch

Cooling capacity w1

Cooling capacity w2

Total input (50/60Hz) w3

Item

Service Ref.

PL-1.6KJB.UK PL-2KJB.UK PL-2.5KJB.UK

Indoor unitIndoor grillOutdoor unit

Notes : w1 Rating conditions (JIS B8616) w2 Rating conditions (SSA 385, 386)

Indoor : 27°C (80°F) DB, 19°C (66°F)WB Indoor : 29°C (84°F) DB, 19°C (66°F)WB Outdoor : 35°C (95°F) DB, 24°C (75°F)WB Outdoor : 46°C (115°F) DB, 24°C (75°F)WB Refrigerant piping length (one way) : 5m (16ft) Refrigerant piping length (one way) : 5m (16ft)

w3 Total input based on indicated voltage w4 Capacity of crankcase heater (W) based on 220 volts.

Service Ref. PL-1.6KJB.UK / PL-2KJB.UK / PL-2.5KJB.UK

50Hz 1ph 220V/1ph 220V 60Hz 1ph 220V/1ph 220V

1. STANDARD SPECIFICATIONS

(Indoor / Outdoor)

Rating conditions (JIS B 8616)

Page 6

2. POWER SUPPLY & MODEL NAMES

Notes : 1. Power supply key N

...

1ph, 220V,60Hz

V(L)

...

1ph, 220, 230, 240V, 50Hz

2. Primary power supplies for all indoor units are single-phase.

3. ELECTRICAL SPECIFICATIONS

(1). Rating conditions -JIS B 8616

Indoor : 27°C (80°F) DB, 19°C (66°F) WB Outdoor : 35°C (95°F) DB, 24°C (75°F) WB

Series PL Indoor Unit (Single Phase)

220, 230, 240V 380/220, 400/230, 415/240V 220V 220V

1ph. 3ph. 1ph. 3ph.

50Hz

60Hz

Power supply

Service Ref. (Indoor unit)

PL-1.6KJB.UK

PU-1.6VLJA

2.UK

– – –

PL-2KJB.UK

PU-2VJA

2.UK

–

PU-2NJA

1.UK

–

Model name (Outdoor unit)

PL-2.5KJB.UK

PU-2.5VJA

2.UK

–

PU-2.5NJA

1.UK

–

PL-1.6KJB.UK

0.59

0.12

0.80

PU-1.6

PL-2KJB.UK

0.60

0.13

0.80

PU-2

V : 220V 50Hz V : 230V 50Hz

PL-2.5KJB.UK

0.60

0.13

0.80

PU-2.5

PL-1.6KJB.UK

0.62

0.13

0.80

PU-1.6

PL-2KJB.UK

0.63

0.14

0.80

PU-2

PL-2.5KJB.UK

0.63

0.14

0.80

PU-2.5

Power supply (1 Phase)

Service Ref.

Current Input Starting current Outdoor unit

PL-1.6KJB.UK

0.64

0.14

0.80

PU-1.6

PL-2KJB.UK

0.65

0.15

0.80

PU-2

V : 240V 50Hz N : 220V 60Hz

PL-2.5KJB.UK

0.65

0.15

0.80

PU-2.5

PL-2KJB.UK

0.65

0.14

0.80

PU-2

PL-2.5KJB.UK

0.66

0.14

0.80

PU-2.5

Power supply (1 Phase)

Service Ref.

Current Input Starting current Outdoor unit

Page 7

DATA4

1. PERFORMANCE DATA

Cooling capacity 50Hz

PL-2.5KJB.UKPL-2KJB.UK

0.14

0.72

Evaporator airflow (CMM)

Bypass factors

S.H.F. at rating conditions

0.20

0.74

0.21

0.67

Service Ref.

Temperature

16$C (60.8$F

)

18$C (64.4$F

)

19$C (66.2$F

)

19.4$C (67$F

)

20$C (68$F

)

22$C (71.6$F

)

PL-1.6KJB.UK

0.81

0.82

0.83

0.84

0.86

16$C (60.8$F

)

18$C (64.4$F

)

19$C (66.2$F

)

19.4$C (67$F

)

20$C (68$F

)

22$C (71.6$F

)

3.7

4.0

4.1

4.2

4.5

0.84

0.85

0.86

0.87

0.89

5.5

5.9

6.0

6.1

6..2

6.6

0.84

0.85

0.86

0.87

0.89

6.4

6.8

7.0

7.1

7.2

7.7

0.84

0.85

0.86

0.87

0.89

16$C (60.8$F

)

18$C (64.4$F

)

19$C (66.2$F

)

19.4$C (67$F

)

20$C (68$F

)

22$C (71.6$F

)

3.4

3.7

3.8

3.9

4.2

0.96

0.99

1.00

1.01

1.04

5.1

5.4

5.6

5.7

5.8

6.2

0.96

0.99

1.00

1.01

1.04

5.9

6.3

6.5

6.6

6.7

7.2

0.96

0.99

1.00

1.01

1.04

1.03

1.06

1.07

1.08

1.11

16$C (60.8$F

)

18$C (64.4$F

)

19$C (66.2$F

)

19.4$C (67$F

)

20$C (68$F

)

22$C (71.6$F

)

16$C (60.8$F

)

18$C (64.4$F

)

19$C (66.2$F

)

19.4$C (67$F

)

20$C (68$F

)

22$C (71.6$F

)

16$C (60.8$F

)

18$C (64.4$F

)

19$C (66.2$F

)

19.4$C (67$F

)

20$C (68$F

)

22$C (71.6$F

)

3.3

3.5

3.6

3.7

4.0

1.04

1.06

1.08

1.09

1.12

4.8

5.2

5.3

5.4

5.5

5.9

1.04

1.06

1.08

1.09

1.12

5.6

6.0

6.2

6.3

6.4

6.8

1.04

1.06

1.08

1.09

1.12

1.10

1.12

1.14

1.15

1.16

1.20

3.1

3.3

3.4

3.5

3.6

3.8

1.11

1.14

1.15

1.16

1.17

1.21

4.6

4.9

5.1

5.2

5.6

1.11

1.14

1.15

1.16

1.17

1.21

5.3

5.7

5.9

6.0

6.1

6.5

1.11

1.14

1.15

1.16

1.17

1.21

1.16

1.19

1.21

1.22

1.23

1.28

2.9

3.1

3.2

3.3

3.6

1.19

1.22

1.24

1.25

1.26

1.31

4.3

4.6

4.7

4.8

4.9

5.3

1.19

1.22

1.24

1.25

1.26

1.31

4.9

5.3

5.5

5.6

5.7

6.1

1.19

1.22

1.24

1.25

1.26

1.31

16$C (60.8$F

)

18$C (64.4$F

)

19$C (66.2$F

)

19.4$C (67$F

)

20$C (68$F

)

22$C (71.6$F

)

3.6

3.8

4.0

4.1

4.3

0.90

0.92

0.93

0.94

0.96

5.3

5.6

5.8

5.9

6.0

6.4

0.90

0.92

0.93

0.94

0.96

6.1

6.6

6.8

6.9

7.0

7.4

0.90

0.92

0.93

0.94

0.96

21$C

(69.8$F)

25$C

(77$F)

30$C

(86$F)

32.2$C (90$F)

35$C

(95$F)

40$C

(104$F)

40.6$C

(105$F)

45$C

(113$F)

46$C

(115$F)

50$C

(69.8$F)

52$C

(125.5$F)

16$C (60.8$F

)

18$C (64.4$F

)

19$C (66.2$F

)

19.4$C (67$F

)

20$C (68$F

)

22$C (71.6$F

)

16$C (60.8$F

)

18$C (64.4$F

)

19$C (66.2$F

)

19.4$C (67$F

)

20$C (68$F

)

22$C (71.6$F

)

16$C (60.8$F

)

18$C (64.4$F

)

19$C (66.2$F

)

19.4$C (67$F

)

20$C (68$F

)

22$C (71.6$F

)

16$C (60.8$F

)

18$C (64.4$F

)

19$C (66.2$F

)

19.4$C (67$F

)

20$C (68$F

)

22$C (71.6$F

)

3.8

4.1

4.2

4.3

4.6

3.5

3.8

3.9

4.0

4.3

3.3

3.5

3.6

3.7

3.8

4.0

3.1

3.4

3.5

3.6

3.8

3.0

3.2

3.3

3.4

3.7

5.6

6.0

6.2

6.4

6.7

6.5

6.9

7.2

7.3

7.4

7.8

5.2

5.5

5.7

5.8

5.9

6.3

6.0

6.4

6.6

6.7

6.9

7.3

4.9

5.2

5.4

5.5

5.9

5.6

6.0

6.2

6.3

6.4

6.9

4.6

4.9

5.1

5.2

5.3

5.7

5.4

5.7

5.9

6.0

6.1

6.6

4.4

4.7

4.9

5.0

5.4

5.1

5.4

5.6

5.7

5.8

6.3

0.81

0.82

0.83

0.84

0.86

0.81

0.82

0.83

0.84

0.86

0.93

0.95

0.96

0.97

0.99

0.93

0.95

0.96

0.97

0.99

0.93

0.95

0.96

0.97

0.99

1.03

1.06

1.07

1.08

1.11

1.03

1.06

1.07

1.08

1.11

1.10

1.12

1.14

1.15

1.16

1.20

1.10

1.12

1.14

1.15

1.16

1.20

1.16

1.19

1.21

1.22

1.23

1.28

1.16

1.19

1.21

1.22

1.23

1.28

Indoor WBOutdoor DB

T.C. C.F.

(T.I.)

C.F.

(T.I.)

T. C.C.F.

(T.I.)

T. C.

Notes : 1. T.C. : Total capacity (kW) ... (kcal/h) = (kW) o 860, (Btu/h) = 4 o (kW) o 860

C.F. (T.I.) : Correction factors of Total input (Indoor unit input + Outdoor unit input)

2. (°F) = 32 + 9 / 5 (°C)

3. Guaranteed operation range (cooling) : Lower limit ... Indoor : 21°C (70°F) DB, 15.5°C (60°F) WB, Outdoor : 21°C (70°F) DB. Upper limit ... Indoor : 35°C (95°F) DB, 22.5°C (72.5°F) WB, Outdoor : 52°C (125.5°F) DB.

wVL ... Outdoor : 46°C (115°F) DB.

Cooling capacity correction factors 50Hz

PL-1.6KJB.UK PL-2KJB.UK PL-2.5KJB.UK

Service Ref.

Refrigerant piping length (one way)

5m (16ft)

1.0

10m (33ft)

0.992

0.985

0.983

15m (49ft)

0.987

0.975

0.972

20m (66ft)

0.982

0.964

0.961

25m (82ft)

–

0.954

0.951

30m (98ft)

–

0.944

0.940

35m (115ft)

– – –

40m (131ft)

– – –

Page 8

Cooling capacity 60Hz

Notes : 1. T.C. : Total capacity (kW)

...

(kcal/h) = (kW) o 860, (Btu/h) = 4 o (kW) o 860

C.F. (T.I.) : Correction factors of Total input (Indoor unit input + Outdoor unit input)

2. (°F) = 32 + 9 / 5 (°C)

PL-2.5KJB.UK

0.20

0.75

Evaporator airflow (CMM)

Bypass factors

S.H.F. at rating conditions

0.21

0.68

Service Ref.

Temperature

16$C (60.8$F

)

18$C (64.4$F

)

19$C (66.2$F

)

19.4$C (67$F

)

20$C (68$F

)

22$C (71.6$F

)

PL-2KJB.UK

16$C (60.8$F

)

18$C (64.4$F

)

19$C (66.2$F

)

19.4$C (67$F

)

20$C (68$F

)

22$C (71.6$F

)

5.3

5.6

5.8

5.9

6.0

6.4

0.84

0.85

0.86

0.87

0.89

6.9

7.3

7.6

7.7

7.8

8.3

16$C (60.8$F

)

18$C (64.4$F

)

19$C (66.2$F

)

19.4$C (67$F

)

20$C (68$F

)

22$C (71.6$F

)

4.9

5.2

5.4

5.5

5.6

5.9

0.96

0.99

1.00

1.01

1.04

6.3

6.8

7.0

7.1

7.2

7.7

16$C (60.8$F

)

18$C (64.4$F

)

19$C (66.2$F

)

19.4$C (67$F

)

20$C (68$F

)

22$C (71.6$F

)

16$C (60.8$F

)

18$C (64.4$F

)

19$C (66.2$F

)

19.4$C (67$F

)

20$C (68$F

)

22$C (71.6$F

)

16$C (60.8$F

)

18$C (64.4$F

)

19$C (66.2$F

)

19.4$C (67$F

)

20$C (68$F

)

22$C (71.6$F

)

4.7

5.0

5.1

5.2

5.3

5.7

1.04

1.06

1.08

1.09

1.12

6.0

6.4

6.7

6.8

6.9

7.4

4.4

4.7

4.9

5.0

5.4

1.11

1.14

1.15

1.16

1.17

1.21

5.7

6.1

6.3

6.4

6.5

7.0

4.1

4.4

4.6

4.7

5.1

1.19

1.22

1.24

1.25

1.26

1.31

5.3

5.7

5.9

6.0

6.1

6.6

16$C (60.8$F

)

18$C (64.4$F

)

19$C (66.2$F

)

19.4$C (67$F

)

20$C (68$F

)

22$C (71.6$F

)

5.1

5.4

5.6

5.7

5.8

6.2

0.90

0.92

0.93

0.94

0.96

6.6

7.1

7.3

7.4

7.5

8.0

21$C

(69.8$F)

25$C

(77$F)

30$C

(86$F)

32.2$C (90$F)

35$C

(95$F)

40$C

(104$F)

40.6$C

(105$F)

45$C

(113$F)

46$C

(115$F)

50$C

(122$F)

52$C

(125.5$F)

16$C (60.8$F

)

18$C (64.4$F

)

19$C (66.2$F

)

19.4$C (67$F

)

20$C (68$F

)

22$C (71.6$F

)

16$C (60.8$F

)

18$C (64.4$F

)

19$C (66.2$F

)

19.4$C (67$F

)

20$C (68$F

)

22$C (71.6$F

)

16$C (60.8$F

)

18$C (64.4$F

)

19$C (66.2$F

)

19.4$C (67$F

)

20$C (68$F

)

22$C (71.6$F

)

16$C (60.8$F

)

18$C (64.4$F

)

19$C (66.2$F

)

19.4$C (67$F

)

20$C (68$F

)

22$C (71.6$F

)

5.4

5.8

6.0

6.1

6.5

5.0

5.3

5.5

5.6

5.7

6.1

4.7

5.0

5.2

5.3

5.7

4.4

4.8

4.9

5.0

5.1

5.5

4.2

4.5

4.7

4.8

5.2

0.81

0.82

0.83

0.84

0.86

0.93

0.95

0.96

0.97

0.99

1.03

1.06

1.07

1.08

1.11

1.10

1.12

1.14

1.15

1.16

1.20

1.16

1.19

1.21

1.22

1.23

1.28

0.84

0.85

0.86

0.87

0.89

0.96

0.99

1.00

1.01

1.04

1.06

1.08

1.09

1.12

1.11

1.14

1.15

1.16

1.17

1.21

1.19

1.22

1.24

1.25

1.26

1.31

0.90

0.92

0.93

0.94

0.96

0.81

0.82

0.83

0.84

0.86

0.93

0.95

0.96

0.97

0.99

1.03

1.06

1.07

1.08

1.11

1.10

1.12

1.14

1.15

1.16

1.20

1.16

1.19

1.21

1.22

1.23

1.28

7.0

7.5

7.7

7.8

7.9

8.4

6.5

6.9

7.2

7.3

7.4

7.9

6.1

6.5

6.7

6.8

6.9

7.4

5.8

6.2

6.4

6.5

6.6

7.1

5.5

5.9

6.1

6.2

6.3

6.7

Indoor WBOutdoor DB

C.F. (T.I.)

T. C.C.F.

(T.I.)

T. C.

Cooling capacity correction factors 60Hz

PL-2KJB.UK PL-2.5KJB.UK

Service Ref.

Refrigerant piping length (one way)

5m (16ft)

1.0

10m (33ft)

0.985

0.978

15m (49ft)

0.975

0.963

20m (66ft)

0.964

0.948

25m (82ft)

0.954

0.934

30m (98ft)

0.944

0.921

35m (115ft)

– –

40m (131ft)

– –

Page 9

2. STANDARD OPERATION DATA

w The air coverage range is the value up to the position where the air speed is 0.25 m/sec. when air is blown out horizontally

from the unit at the Hi notch position. The coverage range should be used only as a general guideline since it varies according to the size of the room and furniture inside the room.

3. ADDITIONAL REFRIGERANT CHARGE (R-22

......

Kg(lbs))

4. OUTLET AIR SPEED AND COVERAGE RANGE

Capacity Input

Indoor unit Service Ref.

phase, Hz Volts Amperes

Outdoor unit Service Ref.

phase, Hz Volts Amperes

Discharge pressure

Suction pressure

Discharge temperature Condensing temperature Suction temperature Ref. pipe length

Intake air temperature

Discharge air temperature

Intake air temperature

$C $C $C

m DB$C WB$C DB$C DB$C WB$C

PL-1.6KJB.UK

cooling

3,800

1.54

PL-1.6KJB.UK

1, 50

220

0.59

PU-1.6VLJA2.UK

1, 50

220

6.7

62.3

37.4

6.3 5

27 19

17.1 35 24

cooling

5,600

2.57

1, 50

220

0.60

PU-2VJA2.UK

1, 50

220

11.3

75.9

48.9

13.1 5

27 19

15.5

35 24

PL-2KJB.UKService Ref.

Electrical circuit TotalRefrigerant circuit

Indoor side

Outdoor

side

MODE

PL-2.5KJB.UK

PL-2KJB.UK PL-2.5KJB.UK

cooling

5,400

2.59

1, 60

220

0.65

PU-2NJA1.UK

1, 60

220

11.4

63.6

46.0

5.8 5

27 19

14.6 35 24

cooling

6,500

2.59

1, 50

220

0.60

PU-2.5VJA2.UK

1, 50

220

11.4

74.3

46.4

10.3 5

27 19

13.1

35 24

cooling

7,000

3.05

1, 60

220

0.66

PU-2.5NJA1.UK

1, 60

220

13.4

83.4

47.6

7.2 5

27 19

13.0 35 24

1.94

(19.8)

0.52 (5.3)

1.95

(19.9)

0.45 (4.6)

1.95

(19.9)

0.48 (4.9)

1.92

(19.6)

0.48 (4.9)

2.03

(20.7)

0.47

(4.8)

Mpa·G

(kgf/FG)

Mpa·G

(kgf/FG)

Service Ref.

PL-1.6KJB.UK PL-2KJB.UK PL-2.5KJB.UK

Outdoor unit precharged (kg)

(up to 20m)

...

1.3

...

1.78, N

...

1.9

...

2.4, N

...

2.4

Refrigerant piping length (one way)

20m(66ft)

0 0 0

25m(82ft)

–

0.06(0.13)

30m(98ft)

–

0.12(0.26)

35m(115ft)

– – –

40m(131ft)

– – –

Air flow Air speed Coverage range Air flow Air speed Coverage range Total width of discharge outlets

CMM

m/sec.

CMM

m/sec.

PL-1.6KJB.UK

15.0

5.2

5.7

16.0

5.6

6.0 0

PL-2KJB.UK

16.0

5.6

6.0

17.0

5.9

6.4 0

PL-2.5KJB.UK

17.0

5.9

6.4

18.0

6.3

6.8 0

Standard

High ceiling

The unit of pressure has been changed to Mpa based on the international SI system. The conversion factor is : 1(Mpa·G)=10.2(kgf/F·G)

Page 10

OUTLINES AND DIMENSIONS

Unit : mm

Ceiling hole

Suspension bolt pitch

Suspension bolt M10 or

Air intake hole

Air outlet hole

Air intake grill

690~710 25~3525~35

640

660

466

460

66 35

760

117 117

117

435

13545

117

Ceiling hole

Suspension bolt pitch

Suspension bolt lower edge

Air outlet hole

690~710

25~35

65~80

760

460

466

6635

115

243

253

29330

- 2

507

660

Terminal block for control

Terminal block for

remote controller

Terminal block for

power supply

Drain hole

VP-25 connection

W3/8

Feeding hole

(Drain pump)

Leave space of 10~15mm between the

top surface of the unit and the ceiling slab.

Ceiling surface

4-Auto vanes

Intake grill opening/closing side

Vane motor

Decorative panel

Control wire entry

Refrigerant piping side

electric wire entry side

Power line entry

41 25

Liquid pipe

Gas pipe

Optional high-efficiency hilter

NOTE1. For electrical parts box may be removed during servicing. When

connecting the power line and the control wire, provide enough length to

the electric wires.

NOTE2. When installing the optional high-efficiency filter, the dimension

between the transom and ceiling shall be more than 440mm. Also,when

installing the optional casement, the dimension between the transom

and ceiling shall be more than 440m. (The optional highefficiency filter

can also be installed.)

Refrigerant pipe Ø9.52

Flared connection 3/8F

Refrigerant pipe Ø15.88

Flared connection 5/8F

1.6/2/2.5KJ

1.INDOOR UNIT PL-1.6KJB.UK / PL-2KJB.UK / PL-2.5KJB.UK

Page 11

2. REMOTE CONTROLLER

Remote controller cable installation

MITSUBISHI ELECTRIC

12 11 10

9 8 7 6 5 4 3 2 1

29 28 27 26 25 24 23 22 21 20 19 18

TIMER TEMP

TIMER/TEMP.

DOWN

POWER

COOL

ON/OFF

LOUVER

MODE

SELECT

FAN

SPEED

TIMER MODE

DRY FAN

HIGH

LOW

AUTO STOP

START

108(4-1/4)

117(4-5/8)

108(4-1/4)

96.5

12(15/32)

90.5

11.6

3.6

117(4-5/8)

Rear side wiring arrangememt opening

Upper side wiring arrangement opening

Fixing hole

83.5(3-9/32)

12(15/32)

4.6

9.2

MITSUBISHI ELECTRIC

12 11 10

9 8 7 6 5 4 3 2 1

29 28 27 26 25 24 23 22 21 20 19 18

TIMER TEMP

TIMER/TEMP.

DOWN

POWER

COOL

ON/OFF

LOUVER

MODE

SELECT

FAN

SPEED

TIMER MODE

DRY FAN

HIGH

LOW

AUTO

STOP

START

Exposed remote controller cable

Cable connection is only from the top. (right, left and bottom not possible)

Remote controller cable

Conduit tube (local arrangement)

Switch box (local arrangement)

Set screw (match with switch box), local arrangement.

●For exposed remote controller cable installation

Note : The cable for the remote controller is 10m (32ft) and 12-core with connectors O.D. ø 5.8.

●For recessed remote controller cable installation

Unit : mm (inch)

Page 12

WIRING DIAGRAM

SYMBOL NAME

I.B

RT1

RT2

TB2

TB4

CND<I.B>

FAN1<I.B>

CNV<I.B>

CNP<I.B>

CN30<I.B>

CN120<I.B>

CN23<I.B>

CN20<I.B>

CN21<I.B>

INDOOR CONTROLLER BOARD

INDOOR FAN MOTOR

VANE MOTOR

LIMIT SWITCH

ROOM TEMPERATURE THERMISTOR (0°C/15k1, 25°C/5.4k1)

INDOOR COIL THERMISTOR (0°C/15k1, 25°C/5.4k1)

DRAIN SENSOR

DRAIN PUMP

TRANSFORMER

INDOOR FAN CAPACITOR

POWER SUPPLY TERMINAL BLOCK

INDOOR/OUTDOOR CONNECTING WIRE TERMINAL BLOCK

POWER SUPPLY CONNECTOR

FAN MOTOR CONNECTOR

VANE MOTOR CONNECTOR

DRAIN PUMP CONNECTOR

INDOOR/OUTDOOR CONNECTING WIRE CONNECTOR

REMOTE CONTROLLER TRANSMISSION WIRE CONNECTOR

VANE POSITION CONNECTOR

INTAKE CONNECTOR

PIPE CONNECTOR

PL-1.6KJB.UK / PL-2KJB.UK / PL-2.5KJB.UK

SYMBOL

NAME

CN50<I.B>

CN51<I.B>

CN2A<I.B>

CN2B<I.B>

CN28<I.B>

CN2<I.B>

SW1<I.B>

SW2<I.B>

SW3<I.B>

SWA<I.B>

SWB<I.B>

SWC<I.B>

X1<I.B>

X3<I.B>

X4<I.B>

F1<I.B>

F2<I.B>

ZNR<I.B>

R.B

CNR120<R.B>

DRAIN SENSOR CONNECTOR

MULTIPLE CONNECTOR

TRANSMISSION WIRES No.1 CONNECTOR

TRANSMISSION WIRES No.2 CONNECTOR

TIME SHORTENING CONNECTOR

TIMER ADAPTOR CONNECTOR

FUNCTION SWITCH

UNIT SWITCH

EMERGENCY OPERATION SWITCH

HIGH CEILING, NOISE SAVING SWITCH

NUMBER OF AIR OUTLETS SWITCH

OPTION SWITCH

DRAIN PUMP/D.HEATER RELAY

VANE MOTOR RELAY

FAN MOTOR RALAY

FUSE (6.3A)

VARISTOR

DEW PREVENTION HEATER

REMOTE CONTROLLER BOARD

CONNECTOR (REMOTE CONTROLLER TRANSMISSION WIRE)

SYMBOL NAME

SW1<R.B>

SW2<R.B>

SW3<R.B>

SW4<R.B>

SW5<R.B>

SW6<R.B>

SW7<R.B>

SW8<R.B>

LD1<R.B>

LD3<R.B>

LD4<R.B>

LD5<R.B>

LD6<R.B>

LD7<R.B>

LD8<R.B>

LD9<R.B>

LD10<R.B>

LD11<R.B>

LD12<R.B>

LD13~24<R.B>

ON/OFF SWITCH

MODE SWITCH

FAN SPEED HIGH/LOW SWITCH

VANE ON/OFF SWITCH

DISPLAY SWITCH

SET TEMPERATURE/TIMER UP SWITCH

SET TEMPERATURE/TIMER DOWN SWITCH

TIMER MODE SWITCH

RUN INDICATOR LED

COOLING INDICATORLED

FAN MODE INDICATOR LED

FAN HIGH INDICATOR LED

VANE ON INDICATOR LED

INDICATOR MODE TEMPERATURE LED

INDICATOR MODE TIMER LED

DRY INDICATOR LED

FAN LOW INDICATOR LED

OFF TIMER INDICATOR LED

ON TIMER INDICATOR LED

TEMPERATURE TIMER REMAINING TIME INDICATOR LED

(5)Em

ergency cooling should be lim

ited to 10 hours m

axim

. (the indoor unit heat exchanger m

ay freeze.)

(4)Therm

ostat will not function.

1.Since the indoor fan m

otor(M

F) is connected w

ith 220V pow

er, using 230, 240V pow

er w

ill require a setting change of the

dip sw

itch(SW

1<I.B>) on the indoor controller board show

ing fig:1.

2.Since the indoor transform

er(T) is connected w

ith 220V pow

er, if 230, 240V pow

er is used. C

hange the w

iring connection

show

ing fig:3.

(3)During em

ergency operation indoor fan runs at high speed but auto-vane does not work.

[Em

ergency operation procedure]

(1)Set the dip switch(SW

3<I.B>) on the indoor controller board to 1 , 2 on and 3 off for cooling

(2)Turn on the outdoor unit side circuit breaker, then the indoor unit side circuit breaker.

(3) Do not attem

pt em

ergency operation when drain pump fails(drain overflows).

(4) Emergency operation will be a continuous operation mode due to power ON/OFF.

(ON/OFF with the remote controller is not possible.)

[Check items] (1) Compressor and fan. (2) Check the trouble position using self diagnostic function.

If the result of self diagnosis indicates protective device such as freeze protection is functioning emergency operation is not possible unless the cause is rem

ove.

If remote controller or microcomputer fails but there is no other trouble,em

ergency

operation is possible by setting dip switch(SW3<I.B>) on the indoor controller board.

[Emergency operation]

TES:

onnector

:Term

inal block

3.Since the outdoor side electric w

iring m

ay change be sure to check the outdoor unit electric w

iring for servicing.

4.Sym

bols used in w

iring diagram

are the follow

ing.

Indoor fan m

otor(M

F) for 230, 240V

fig:1

8765

ON OFF

8765

ON OFF

fig:2

1.6KJ

2.5KJ

2KJ

OFF

MODELS

SW1

31 3 1

3 2 1

3 4

1234

3131

LD11

LD12

LD6

LD10

LD5

LD1

LD4

LD9

LD3

LD24

LD23

LD22

LD21

LD20

LD19

LD18

LD17

LD16

LD15

LD14

LD13

LD7

LD8

TO OUTDOOR UNIT CONNECTING WIRES DC 12V

CNR120

TWIN1

CN2A

TWIN2

CN2B

JR05

JR06

JR03

JR04

JR02

JR01

CN2

TIMER

SWC

STD

TO REMOCON

CN120

SW3

321

SWA

SW1

8765432143215

SW2

OFF

SWB

CN51

MULTIPLE

RT2

RT1

DRAIN

CN50

INTAKE

CN20

PIPE

CN21

CN30

OUTDOOR

CN23

VANE

CN28

LINETEST

R.B.

ORN YLW

TB4

BLK WHT

GRILL

BRN

CN4T

TRANS

10.6V AC

14.5V AC

BRN

RED

YLW

ORN

YLW

RED

WHT

BLU

RED

GRN/YLW

POWER SUPPLY

~(1PHASE)

220-240V 50Hz

220V 60Hz

TB2

YLW

RED

ZNR

TRANS

POWER

D.U.M.VANEFAN

CNT

CND

CNPCNVFA N1

Page 13

REFRIGERANT SYSTEM DIAGRAM7

INDOOR UNIT

PL-1.6KJB.UK PL-2KJB.UK

Indoor heat exchanger

OUTDOOR UNIT

PU-1.6 PU-2

Outdoor heat exchanger

Distributor

Flexible tube

Flared connection

Ball valve

(with service port) Refrigerant pipe {9.52(3/8) (With insulator) option

Refrigerant pipe {15.88(5/8) (With insulator) option

Accumulator

Compressor

Capillary tube

wCapillary tube size

: flow of refrigerant

PU-1.6(O.D.3.2

I.D.1.8-R900)

PU-2 (O.D.3.2

I.D.2.0-R430)

Strainer

Check plug

High pressure switch

Low pressure switch

Charge plug

Ball valve

PL-1.6KJB.UK, PL-2KJB.UK/PU-1.6VLJA2.UK,PU-2VJA2.UK,PU-2NJA1.UK

PL-2.5KJB.UK/PU-2.5VJA

.UK,PU-2.5NJA1.UK

Indoor heat exchanger

Indoor coil thermistor RT2

Distributor with strainer

Outdoor heat exchanger

Ball valve (with service port)

Flared connection

Flexible tube

Compressor

flow of refrigerant

wCapillary tube size

Capillary tube

Capillary tube for injection

Flared connection

Low pressure switch

High pressure switch

Refrigerant pipe

15.88 (5/8)

(With insulator) option

Refrigerant pipe

9.52 (3/8)

Strainer

Ball valve

Check plug

Charge plug

Accumulator

PU-2.5 (O.D.3.2oI.D.1.6-R760)o2pcs

PL-2.5KJB.UK PU-2.5

Page 14

OPERATION FLOW-CHART

Models : PL-KJB.UK

1. Main operation

Start

POWER SUPPLY

Live

ON/OFF

button ON

TIMER MODE

button ON

During

operation

AUTO STOP lamp ON AUTO START lamp ON

Auto start timer 1 12Hr up/ press 12 1Hr down/ press

Abnormal

operation mode

MODE SELECT

button

EMERGENCY

ALL STOP

STOP

Self-diagnostic function

Indicate & Memory

Protection device

Self hold

Protection device

Self hold reset

COOL OPERATION

DRY OPERATION

POWER lamp ON

DRY

COOL

YES

YES YES

YES

Auto stop timer 1 12Hr up/ press 12 1Hr down/ press

Set time Elapsed time=0

Note 1. Refer to page 21~22 for timer mode details. Note 2. The unit starts operation by pressing the ON / OFF switch when unit is OFF.

During operation, the unit stops operation by pressing the ON / OFF switch. In addition, operation can be turned ON / OFF with the contralized remote controller or the remote switch.

Note 3. The factors which cause "abnormal operation mode" are as follows.

●Outdoor unit abnormal operation.

●Fault of room temperature thermistor (RT1).

●Fault of indoor coil thermistor (RT2).

●Indoor coil frost protection mode.

●Drain water overflow prevention mode.

Refer to page 25 for abnormal operation mode details. Note 4. The indoor fan runs on the low speed for 1 minute to eliminate remaining heat. Note 5. The compressor will not start for 3 minutes after the stop.

Page 15

2. COOL operation

Note 6. The thermostat is continuously ON during the test run. Note 7. Refer to page 18~19 for coil frost protection. Note 8. Range A : Indoor coil temperature is more than 5 degrees above room temperature.

Range B : Indoor coil temperature is within 5 degrees either way of room temperature. Range C : Indoor coil temperature is more than 5 degrees below room temperature.

COOL operation

Compressor

thermostat ON

Allowance release

YES

3-minute

time delay

6-minute

time delay

Compressor start 3 minutes elapse

YES

Coil frost

protection

Range C

YES

Compressor

start 10 minutes

elapse

YES

Allowance release

Coil frost

prevention

Compressor

start 16 minutes

elapse

YES

Indoor coil temperature 1C or below

YES

Indoor coil

temperature 10:

or more

YES

3-minute time delay

Coil frost

prevention release

Coil frost

prevention set

Allowance

6-minute time delay

Allowance set

YES

Continue

1 minute

YES

Fan speed LOW

5 minutes elapse

YES

Outdoor unit abnor-

mality check mode

Coil frost

protection

check mode

Compressor ON Compressor OFF

Page 16

DRY operation

Compressor ON

Compressor OFF

10 minutes completed

Compressor ON

3 min.elapse

Compressor

thermostat ON

Compressor

thermostat ON

Compressor ON

time completed

Fan stop

Compressor OFF

Compressor ON

time set

Compressor ON

Fan speed LOW

Compressor OFF

10-minute timer start

Room temperature

18 C or below

YES

3-minute

time delay

3. DRY operation

Note 9. When the room temperature is 18°C or below, the compressor can not turn ON. When the room temperature rises to

18°C or above, the compressor will start operation after a 3-minute time delay. Note 10. Refer to page 20 for the compressor operation time. Note 11. In DRY operation, the indoor fan runs on the low speed during the compressor ON and stops during the compressor

OFF.

Page 17

MICROPROCESSOR CONTROL9

MITSUBISHI ELECTRIC

12 11 10

9 8 7 6 5 4 3 2 1

29 28 27 26 25 24 23 22 21 20 19 18

TIMER TEMP

TIMER/TEMP.

DOWN

POWER

COOL

ON/OFF

LOUVER

MODE

SELECT

FAN

SPEED

TIMER MODE

DRY FAN

HIGH

LOW

AUTO

STOP

START

● OFF-ON switching.

● COOL/DRY-FAN selector switching.

● HIGH-LOW fan speed switching.

● Swing louvers SWING-FIXED switching.

● TIMER mode selector switching.

● Thermostat setting.

● Timer setting.

● Self diagnostic troubleshooting.

● Test run switching.

● Room temperature thermistor.

● Indoor coil thermistor.

● Drain sensor.

● Compressor protection device working

● Compressor motor and outdoor fan motor :

ON - OFF

● Fan : ON - OFF.

● Fan speed : HIGH - LOW

● Swing louvers : ON-OFF.

● Drain water lift-up mechanism : ON-OFF

● Emergency stop.

OUTPUT to indoor unit

INPUT from indoor unit

INPUT to remote controller

● Transmits and receives signal.

REMOTE CONTROLLER

OUTPUT to remote controller

INDOOR CONTROLLER BOARD

● Receives orders from remote controller and temperature data from indoor unit.

● Processes orders and data.

● Transmits the power of indication LED to remote controller

● Controls indoor and outdoor operation.

● Self diagnostic function.

w System control operation.<Optional> w Emergency operation.

12VDC

Polar, twelve (12) - core cable Maximum length 50m (164ft)

Non - polar, two (2) - core cable

Outdoor unit

● Indication LED lights.

Indoor unit PL-KJB.UK

OUTPUT to outdoor unit

INPUT from outdoor unit

OUTDOOR UNIT

● Receives order from indoor controller.

● Emergency stop.

1.OUTLINE OF MICROPROCESSOR CONTROL

Page 18

2. INDOOR UNIT CONTROL

2-1COOL operation

(1) Compressor control

1 3-minute time delay

To prevent overload, the compressor will not start within 3 minutes after stop.

2 The compressor runs when the room temperature is higher than the set temperature.

The compressor stops when the room temperature is equal to or lower than the set temperature.

3 The compressor stops in check mode or during protective functions. 4 Coil frost prevention

To prevent indoor coil frost, the compressor will stop when the indoor coil thermistor (RT2) reads 1°C or below after the compressor has been continuously operated for 16 minutes or more. The coil frost prevention is released under any of the following conditions.

● The indoor coil thermistor rises to 10°C or above.

● The room temperature becomes equal to or lower than the set temperature.

● COOL mode is stopped or changed to another mode.

NOTE : By cutting the jumper wire JRO2 on the indoor controller board, the temperature to start coil frost prevention

changes from 1°C to -3°C.

1 Press POWER ON/OFF button. 2 Press MODE SELECT button to set operation mode to COOL.

3 Check lamp is ON and set desired temperature with UP

or DOWN button.

NOTES : 1. When lamp is ON, press TIMER/TEMP button

to change the display to temperature mode.

2. Set temperature changes by 1°C in the range 18 ~ 29°C each time UP or DOWN button is pressed.

3. The lighting lamp shows the set temperature, and the flashing lamp shows the room temperature. When the room temperature is equal to the set temperature, the lamp keeps lighting, 0.5 seconds brightly and 0.5 seconds faintly.

TIMER

w1 Even if the room temperature rise above the set temperature during this period, the compressor will not start until this

period has ended.

MITSUBISHI ELECTRIC

12 11 10

9 8 7 6 5 4 3 2 1

29 28 27 26 25 24 23 22 21 20 19 18

TIMER TEMP

TIMER/TEMP.

DOWN

POWER

COOL

ON/OFF

LOUVER

MODE

SELECT

FAN

SPEED

TIMER MODE

DRY FAN

HIGH

LOW

AUTO STOP

START

Operation starts by POWER button ON.

Thermostat

OFF

TEMP

Room temperature becomes equal to set temperature.

Room temperature rises above set temperature.

Operation stops by POWER button OFF.

LOW or HIGHLOW or HIGH

Indoor fan

Louver

OFF

Depends on remote controller setting

Drain pump

OFF

Compressor

OFF

MIN. 3 minutes w1

3 minutes

Page 19

5 Coil frost protection

When indoor coil temperatuer becomes -15°C or below,coil frost protection will proceed as follows.

After the compressor has been continuously operated for 3 minutes or more,and the indoor coil temperature has been 15°C or below for 3 minutes,the coil frost protection will start.

Compressor stops for 6 minutes,and then restarts. lf the start condition is satisfied again during the first 10 minutes of compressor operation,both the indoor and outdoor units stop, and the remote controller displays this occurrence.

Coil frost protection is released when the start condition is not satisfied again during the allowance, or when the COOL mode stops or changes to another mode.

(2) Indoor fan control

Indoor fan speed LOW/HIGH depends on the remote controller setting. However, if an outdoor unit abnormality is detected, the indoor fan speed will be LOW, regardless of the remote controller setting.

(3) Louver control

Louver operation (SWING LOUVER ON / OFF) depends on the remote controller setting.

(4) Detecting abnormalities in the outdoor unit

After the compressor has been continuously operated for 3 minutes, if the difference between the indoor coil temperature and the room temperature is out of RANGE C for 1 minute, the indoor fan speed will turn to LOW. Five minutes later, if the difference is still out of RANGE C,the outdoor unit is functioning abnormally. Thus, the compressor will stops and the remote controller will display this occurrence. RANGE A : Indoor coil temperature is more than 5 degrees above room temperature. RANGE B : Indoor coil temperature is within 5 degrees either way of room temperature. RANGE C : Indoor coil temperature is more than 5 degrees below room tempetature.

(5) Dew prevention heater

To prevent dew from accumulating on the grill, dew prevention heater is continuously ON in COOL or DRY operation. It is independant of the thermostat ON/OFF

(6) Drain pump control

The drain pump works in COOL or DRY operation. When COOL or DRY operation stops or changes to another mode, the drain pump continues to operate for 3 more minutes. Even if the check mode starts during COOL or DRY operation, the drain pump continues to operate for 3 more minutes.

When both the drain pump and the unit are operating, the drain sensor detects the temperature. This temperature tells whether the drain water level is above or under the drain sensor. If the drain water levels rises above the drain sensor due to a drain pump malfunction, the unit will enter the check mode. The operation will stop and only the drain pump will continue to operate for 3 more minutes. When either of the following conditions are satisfied, the drain sensor is deemed under water.

● Though the drain sensor has been heated by the drain sensor heater for more than 40 seconds, its temperature rise is less than 20 degrees.

● The drain sensor temperature is below 63°C.

2-2 DRY operation

MITSUBISHI ELECTRIC

12 11 10

9 8 7 6 5 4 3 2 1

29 28 27 26 25 24 23 22 21 20 19 18

TIMER TEMP

TIMER/TEMP.

DOWN

POWER

COOL

ON/OFF

LOUVER

MODE

SELECT

FAN

SPEED

TIMER MODE

DRY FAN

HIGH

LOW

AUTO STOP

START

1 Press POWER ON/OFF button. 2 Press MODE SELECT button to set operation mode to DRY.

3 Check lamp is ON and set desired temperature with UP

or DOWN button.

NOTES : 1. When lamp is ON, press DISPLAY SELECT

button to change the display to temperature mode.

2. Set temperature changes by 1°C in the range 18 ~ 29°C each time UP or DOWN button is pressed.

TIMER

TEMP

Page 20

MIN. 3 minutes w2

Thermostat

Indoor fan

Louver

Drain pump

Compressor

LOW speedLOW speed

OFF

3 minutes

OFF

Operation starts by POWER button ON.

Operation stops by POWER button OFF.

Room temperature becomes equal to set temperature.

Room temperature rises above set temperature.

Depends on remote controller setting

w2 Even if the room temperature rises above the set temperature during this period, the compressor will not start

until this period has ended.

(1) Compressor control

13-minute time delay

To prevent overload, the compressor will not start within 3 minutes after stop.

2The compressor runs when the room temperature is higher than the set temperature.

The compressor stops when the room temperature is equal to or lower than the set temperature.

3The compressor stops in check mode or during protective functions. 4The compressor will not start when the room temperature is below 18°C.

The compressor starts intermittent operation when the power is turned ON with room temperature above 18°C. The compressor ON/OFF time depends on the thermostat ON/OFF and the room temperatures as follows. After 3-minute compressor operation,

● If the room temperature thermistor reads above 28°C with thermostat ON, the compressor will operate for 6 more minutes and then stop for 3 minutes.

● If the room temperature thermistor reads 26°C~28°C with thermostat ON, the compressor will operate for 4 more minutes and then stop for 3 minutes.

● If the room themperature thermistor reads 24°C~26°C with thermostat ON, the compressor will operate for 2 more minutes and then stop for 3 minutes.

● If the room temperature thermistor reads below 24°C with thermostat ON, the compressor will stop for 3 minutes.

● If the thermostat is OFF regardless of room temperature, the compressor will stop for 10 minutes.

5Coil frost protection

Coil frost protection in DRY operation is the same as in COOL operation.

6Coil frost prevention

Coil frost prevention does not operate in DRY operation.

(2) Indoor fan control

The indoor fan runs on LOW speed during compressor operation. The fan speed cannot be changed with the remote controller. Also, the indoor fan does not run during compressor OFF.

(3) Louver & drain pump controls

Same as in COOL operation.

(4) Detecting abnormalities in the outdoor unit

An abnormality in the outdoor unit can not be detected in DRY operation.

Page 21

2-3 FAN operation

MITSUBISHI ELECTRIC

12 11 10

9 8 7 6 5 4 3 2 1

29 28 27 26 25 24 23 22 21 20 19 18

TIMER TEMP

TIMER/TEMP.

DOWN

POWER

COOL

ON/OFF

LOUVER

MODE

SELECT

FAN

SPEED

TIMER MODE

DRY FAN

HIGH

LOW

AUTO

STOP

START

1 Press POWER ON/OFF button. 2 Press MODE SELECT button to set operation mode to FAN.

NOTE : Temperature can not be set in FAN operation.

1 Indoor fan control

The indoor fan speed LOW/HIGH depends on the remote controller setting.

2 Louver control

The louver operation ON/OFF depends on the remote controller setting.

3 Drain pump control does not work in FAN operation. As an exception, when COOL mode changes to FAN mode, the drain

pump continues to operate for the first 3 minutes in FAN operation.

AUTO STOP ·········Air conditioner stops after the set time lapses. AUTO START ········Air conditioner starts after the set time lapses.

<How to operate

●

AUTO STOP timer>

1 While ● POWER I lamp is lighting, press TIMER MODE button.

■■■

STOP

and lamps turn ON.

2 Set the time for the AUTO STOP timer with the UP or DOWN button.

NOTE : The time setting is in 1 hour units up to 12 hours.

3 With the lapse of time, the timer lamps turn OFF one by one, showing

the remaining time.

4 To cancel the AUTO STOP timer and continue operation, press the

TIMER MODE button. To cancel the AUTO STOP timer and stop operation, press the POWER ON/OFF button.

1 While ❍ POWER I lamp is OFF, press TIMER MODE button.

■■■

START

I and lamps turn ON.

2 Set the time for the AUTO START timer with the UP or DOWN button.

NOTE : The time setting is in 1 hour units up to 12 hours.

3 With the lapse of time, the timer lamps turn OFF one by one, showing

the remaining time.

4 To cancel the AUTO START timer and keep the unit OFF, press the

TIMER MODE button. To cancel the AUTO START timer and start operation, press the POWER ON/OFF button.

TIMER

2-4 TIMER operation

MITSUBISHI ELECTRIC

12 11 10

9 8 7 6 5 4 3 2 1

29 28 27 26 25 24 23 22 21 20 19 18

TIMER TEMP

TIMER/TEMP.

DOWN

POWER

COOL

ON/OFF

LOUVER

MODE

SELECT

FAN

SPEED

TIMER MODE

DRY FAN

HIGH

LOW

AUTO

STOP

START

AUTO

TIMER

Page 22

12 11 10

9 8 7 6 5 4 3 2 1

29 28 27 26 25 24 23 22 21 20 19 18

Green

lamps

Remaining time:2 hour 59 minutes to 2 hour

TIMER TEMP

12 11 10

9 8 7 6 5 4 3 2 1

29 28 27 26 25 24 23 22 21 20 19 18

1 hour 59 minutes to 1 hour

TIMER TEMP

12 11 10

9 8 7 6 5 4 3 2 1

29 28 27 26 25 24 23 22 21 20 19 18

59 minutes to 0

TIMER TEMP

12 11 10

9 8 7 6 5 4 3 2 1

29 28 27 26 25 24 23 22 21 20 19 18

Time counting is completed.

TIMER TEMP

NOTE : When AUTO STOP timer is active, the remaining time display can be changed to the temperature display by pressing

DISPLAY button.

The green lamps show the remaining time until the time is up. When the time is up, the green lamps are all off.

TIMER TEMP

2-5 Test run

The unit starts the test run by pressing both the UP and DOWN buttons simultaneously for more than two seconds during lamp ON or the unit OFF.

● The test run automatically stops in 2 hours.

● Set temperature is not displayed during test run.

● To cancel the test run, press the POWER ON/OFF button.

The units are set as follows by the factory.

1) Initial operation mode: FAN 3) Swing louver :OFF

2) Fan speed : LOW 4) Set temperature : 28°C

2-6 Emergency operation

When the remote controller or microprocessor malfunctions and no other trouble exists, emergency operation is available by setting the dipswitch on the indoor controller board.

[Check items]

1 Make sure the compressor and the fans are running normally. 2 Locate the trouble with the self-doagnostic function. If the self-

doagnostic function indicates that the protection device (such as coil frost protection)is functioning, the sources must be removed before attempting emergency operation. Emergency operation ON/OFF is activated not with the remote controller but with the circuit breaker.

[Emergency operation procedure] 1 Cooling operation is available by setting the dipswitch SW3 1

and 2 ON and 3 OFF on the indoor controller board.

2 To start emergency operation, turn the outdoor side circuit breaker ON first, and then the indoor side circuit breaker ON. 3 During emergency operation, the indoor fan runs on HIGH speed, the compressor runs continuously, and the louver

stops. When the drain pump is attached, it works in emergency operation.

4 Thermostat will not function. 5 Do not use emergency cooling operation for more than 10 hours, as the indoor coil may freeze.

w If the self-diagnostic function shows a drain pump malfunction, do not attempt emergency operation, as the drain may overflow.

INDOOR CONTROLLER BOARD

TIMER

SW3

Page 23

2-8 Function of jumper wire and dipswitch on indoor controller board

1. Jumper wire

1 JR01

...

Jumper wire for the auto vanes.

Cut JR01 for the unit WITHOUT auto vanes.

2 JR02

...

Jumper wire for the temperature to start coil frost prevention

Cutting JR02 changes the temperature from +1°C to -3°C.

3 JR03

...

Jumper wire for set temperature adjustment in HEAT mode. In HEAT operation, heated air stagnates in the upper part of the room. The indoor unit installed in the upper part of the room will detect the air temperature higher than the actual temperature in the living space. This difference is about 4 degrees. Therefore, the temperature detected by the room temperature thermistor should be corrected 4 degrees down. The unit with JR04 attached will make this adjustment.

4 JR04

...

Jumper wire for the indoor fan speed during thermostat OFF in HEAT mode Cutting JR04 changes the speed from Extra-Low to Low.

5 JR05

...

Jumper wire for detecting abnormalities in the outdoor unit Cutting JR05 makes this detection unavailable. (Occurrence of abnormality can not be detected. )

6 JR06

...

Jumper wire for auto restart function Cutting JR06 makes the auto restart function available.

2. Dipswitch

1 SW1 (Function switch)

SW1-1) Switch for power supply

ON : 220V OFF : 230V, 240V

SW1-2) Switch for single or twin control

ON : Twin control OFF : Single control

SW1-3) Switch for unit number in twin control (This switch is valid when SW1-2 is ON. )

ON : Unit No. 2 OFF : Unit No. 1

SW1-4~SW1-6 Switch for capacity of each model

SW1-7, SW1-8 Switch for the pair number of wireless remote controller

2-7 Auto Restart function

Unit can be start / stop by turning the breaker ON / OFF.

1) Cutting the JR06 on the indoor board. Unit can be start / stop using the remote controller. Only in case the unit was operated before a power cut, the unit will restart automatically after power is back.

2) Short all the CN2 on the indoor board. Unit can not be start / stop using remote controller. Unit will restart automatically whether the unit was operated or stopped when the power was cut off.

JR06

Available

Not available

Auto restart

Not effective

Effective

1 2 3

CN2

ORN

BRN RED

Optional timer adapter PAC-SA89TA-E

1 2 3 4 5 6 7 8

ON OFF

PL-1.6KJB.UK PL-2KJB.UK PL-2.5KJB.UK

4 5 6

ON OFF

4 5 6

ON OFF

4 5 6

ON OFF

7 8

ON OFF

7 8

ON OFF

7 8

ON OFF

7 8

ON OFF

Page 24

1 2 3 4 5

ON OFF

PL-KJB.UK

3 4 5

ON OFF

3 SW3 (Emergency operation switch)

1 2 3

Normal operation

ON OFF

1 2 3

For emergency cooling

ON OFF

4 SWA (High ceiling, noise saving switch)

High ceiling 2 High ceiling 1 Standard

5 SWB (Air outlet number switch)

(Not used)

3-direction airflow 4-direction airflow (Standard)

6 SWC (Option switch)

Option

Standard

When mounting the optional high efficiency filter, set this switch to “option”

SWA

4-direction airflow 3-direction airflow

Standard

2.4

2.7

High ceiling 1

2.7

3.0

High ceiling 2

3.0

3.3

Ceiling height & airflow direction

(Unit : m)

SWB

2 SW2 (Unit switch)

SW2-1) Switch for air conditioner with or without electric heater

ON : Unit with electric heater OFF: Unit without electric heater

SW2-2) Switch for air conditioner with or without heat pump

ON : Unit with heat pump OFF: Unit without heat pump

SW2-3, SW2-4) Switch for function code

Page 25

TROUBLESHOOTING10

1. SELF-DIAGNOSTIC FUNCTION

! When trouble occurs during operation, the unit stops and enters the self-diagnostic mode, and displays the trouble

location with the timer lamps on the remote controller. All the other lamps are OFF.

@ To activate the self-diagnostic function for service, press the UP and DOWN buttons simultaneously for more than two

seconds during operation with lamp ON.

# The timer lamps show the latest trouble. Trouble data is memorized until the next trouble occurs, even when the breaker

turns OFF. To clear the memory, press the UP and DOWN buttons simultaneously for more than two seconds during the test run.

$ All buttons except the POWER ON/OFF button are unavailable during the self-diagnostic mode. % To release the self-diagnostic mode, press the POWER ON/OFF button.

TEMP

Unit

Trouble location

Transmission error

in twin control

Cause

● Wrong wiring between No. 1 and No. 2 units

● Poor connector contact

Measures

● Check dipswitch setting

● Check wiring

Outdoor unit

● Wrong wiring between indoor/outdoor units

● Outdoor unit abnormality detection

● Malfunction of outdoor coil thermistor

● Reversed phase detected

● Check wiring

● Check outdoor unit

● Check outdoor coil thermistor

Unit

No.1

Unit

No.2

Room

temperature

thermistor

(RT1)

● Poor connector contact

● Thermistor malfunction

● Check connector

● Check thermistor ➔ No trouble ➔ replace indoor

controller board.

Unit

No.1

Unit

No.2

Indoor coil

thermistor

(RT2)

● Poor connector contact

● Thermistor malfunction

● Check connector

● Check thermistor ➔ No trouble ➔ replace indoor

controller board.

Unit

No.1

Unit

No.2

Drain sensor

(DS)

● Poor connector contact

● Thermistor malfunction

● Check connector

● Check thermistor ➔ No trouble ➔ replace indoor

controller board.

Unit

No.1

Unit

No.2

Drain

overflow

protection

● Drain pump malfunction

● Drain sensor improperly

mounted

● Check drain pump

● Check drain sensor ➔ No trouble ➔ replace indoor

controller board.

Unit

No.1

Unit

No.2

Coil frost

or overheat

prevention

● Air passage short cycle

● Air filter clogged

● Indoor fan malfunction

● Remove blockage

● Check air filter

● Check indoor fan

(Indicates that the unit is in self-diagnostic mode)

TIMER TEMP

}

Page 26

Louvers do not work.

Louvers motor does not work. Connector is poorly connected. Louvers is poorly assembled. Indoor controller board is damaged.

Unit stops after 5 to

20 seconds operation

Protection function is working.

Power ON/OFF button

does not work.

Indoor/outdoor connecting wire is connected incorrectly. Indoor/outdoor connecting wire shorts. Compressor protector is damaged. Deicer is broken.

Remote controller is

damaged.

Transmission wire is

poorly connected

Transmission wire is damaged. Connector is poorly connected.

Louvers motor is damaged. Louvers motor relay is damaged.

Refer to check code on remote controller display.

2. OTHER TROUBLES AND CAUSES

Page 27

4-WAY AIR FLOW SYSTEM11

1.Placement of the air outlets

●For this grill, the airflow direction comes in 5 patterns. Also, by setting the dipswitches (SWA and SWB)on the indoor board to the appropriate settings, you can adjust the air flow and speed. Select the settings that are needed from those in Tables 2 and 3 according to the place where you want to install the unit.

1) Decide on the pattern of the airflow direction.

4-direction 3-direction

Airflow direction

pattern

Pattern 1 Pattern 4

Factory setting

One air outlet fully closed

2) According to the number of air outlets and the height of the ceiling to install the unit, be sure to set the dip switches (SWA, SWB, SWC) on the indoor board to the appropriate setting.

●Correspondence of ceiling heights to numbers of air outlets.

<Initial setting by factory> SWA : for ceiling height SWB : for number of air outlets SWC : optional filter element

3···High ceiling 2···(Unavailable) STD···Without filter element 2···Standard 3···3 directions OP···With filter element 1···Silent 4···4 directions

Silent

4-directional

2.4m

2.7m 3.0m

3-directional 2.7m 3.0m 3.3m

2 Standard 3 High ceiling

SWB

SWA

Note 1. For the 3-direction airflow, install the air outlet

shutter plate(PAC-SE14SP-E)

Note 2. The 2-direction airflow is unavailable.

2.Installing the outlet shutter plate (PAC-SF38SP-E)

For the 3-direction discharge, close one air outlet fully by installing the air outlet shutter plate before installing the grill. <Caution> Installing the shutter plate not securely will cause air leak and water dripping.

<How to attach the shutter plate> Peel off the separation sheet from the shutter plate, and attach the shutter plate to the air outlet of the indoor unit.

Indoor unit

Shutter plate

Page 28

DISASSEMBLY PROCEDURE

OPERATING PROCEDURE PHOTOS&ILLUSTRATIONS

1. Removing the air intake grill

(1) Press the button. (2) Open the intake grill 90°. (3) Remove the chip. (4) Slide the shaft in the hinge to the left and remove the

intake grill.

PUSH

4. Removing the fan motor

(1) Remove the fan guard. (2) Remove the turbo-fan nut and radiator aluminum cap. (3) Pull out the turbo fan. (4) Disconnect the connector of the fan motor lead wire. (5) Remove the 3nuts of fan motor.

3. Removing the electrical parts box

(1) Remove the fan guard. (2) Disconnect the lead wire of the vane motor from the clamp,

and disconnect the red connector (8P). (3) Remove 2 of 4 screws from the electorical parts cover. (4) Remove the electorical parts cover. (5) Disconnect the following connectors from the box.

Red (3P) for the fan motor White (2P) for the indoor coil trermistor Blue (2P) for the drain pump White (4P) for the drain sensor

(6) Disconnect the green anti-falling wire of the electrical parts

box. (7) Remove 3 of 4 screws from the electrical parts box, and

loosen the other screw. (8) Pull out the electrical parts box.

Electrical parts inside the box

Terminal block

Transfomer

Indoor fan capacitor

Room temperature thermistor

Indoor controller board

2. Removing the fan guard.

(1) Open the intake grill. (2) Remove the 4 screws of the fan guard.

1. INDOOR UNIT

Be careful on removing heavy parts.

Photo 1

Photo 2

Photo 3

Figure 1

Photo 4

nut

Fan motorConnector

Fan guard screw

Lead wire for vane motor

ConnectorTerminal blockAnti-falling wire

Radiator aluminum cap

Capacitor

Nut

Screws

Box cover

Clamp

Fan guard

Electrical box

Connerctor

Room temperature thermistor

Screws Transformer

Indoor controller board

PUSH button

Shaft

Intake grill

Page 29

OPERATING PROCEDURE PHOTOS&ILLUSTRATIONS

5. Removeing the room temperature thermistor

(1) Remove the fan guard. (2) Remove the electrical box cover (3) Remove the holder and the room temperature thermistor

by pulling the catch.

(4) Disconnect the red connector, CN20, on the indoor

controller board.

6. Removing the indoor coil thermistor

(1) Remove the fan guard. (2) Remove the electrical box cover. (3) Remove the electrical box. (4) Remove the turbo fan. (5) Remove the screw of the service panel. (6) Remove the service panel. (7) Remove the indoor coil thermistor from the holder

attached to the copper pipe.

(8) Disconnect the 2-pin white connector.

7. Removing the panel

(1) Open the intake grill. (2) Disconnect the connector the vane motor. (3) Remove 4 screws of the panel. (4) Pulling the temporary handing hook, remove the panel.

8. Removing the drain pan

(1) Remove the panel. (2) Remove the fan guard. (3) Remove the rubber bushing. (4) Drain the remaining water in the drain pan. (5) Remove the electrical box cover. (6) Remove the electrical box. (7) Refmove the screw of the V.A. cover, and remove the V.A.

cover.

(8) Remove each screw of the corner supports 1,2, and 3,

and remove the corner supports 1,2 and 3.

(9) Pull out the drain pan.

wPull the left and right of the pan gradually.

Be careful not to crack or damage the pan.

Photo 8

Photo 7

Photo 6

Photo 5

Indoor controller board

Room temparature thermistor

Mounting hole

Indoor coil thermistor

Corner support 1

Corner support 3

VA cover

Rubber bush

Corner support 2

Screws

screws

Panel

Fan guard

Temporary hanging hook

Page 30

OPERATING PROCEDURE PHOTOS&ILLUSTRATIONS

9. Removing the drain pump and drain sensor

(1) Remove the panel. (2) Remove the fan guard. (3) Remove the electrical parts cover. (4) Remove the electrical parts box. (5) Remove the drain pan. (6) Remove 4 screws of the drain pump. (7) Pulling the clip of the drain hose, pull out the drain hose

from the drain pump. (8) Remove the drain senser and the holder. (9) Pull out the drain pump.

10. Removing the heat exchanger

(1) Remove the panel. (2) Remove the fan guard. (3) Remove the electrical parts cover. (4) Remove the electrical parts box. (5) Remove the drain pan. (6) Remove the turbo fan. (7) Remove the screw of the coil support A. (8) Remove 2 screws of the coil support B. (9) Remove 2 screws of the coil.

(10) Remove 4 screws of the piping cover of the outer wall,

and pull out the piping cover.

Photo 9

Drain hose

Drain pump

Drain sensor holder

Screws

Clip

Photo 11

Photo 12

Heat exchanger

Coil support B

Coil support A

Coil screws

Screws of piping cover

Piping cover

Page 31

PARTS LIST13

No.

Parts No. Parts Name Specifications

Wiring

Diagram

Symbol

Recommended

Q'ty

Unit

Amount

Q'ty / set

PL-1.6,2,2.5

KJB.UK

Price

1 2 3 4 5 6 7

AIR OUTLET GRILLE AIR FILTER INTAKE GRILLE HINGE GRILLE HANGER REMOTE CONTROLLER REMOTE CONTROLLER CABLE

1 1 1 2 1 1 1

(BG88H096H01)

R.B

10m

Remarks

(Drawing No.)

T7W 560 003 R01 29H 500 R01 29H 691 R01 29H 061

– T7W 20K 200 T7W 139 305

PANEL PARTS PL-1.6KJB.UK PL-2KJB.UK PL-2.5KJB.UK

Page 32

FUNCTIONAL PARTS PL-1.6KJB.UK PL-2KJB.UK PL-2.5KJB.UK

29 30

Page 33

No.

Parts No. Parts Name

Specifications

PL-1.6

KJB.UK

PL-2 PL-2.5

Wiring

Diagram

Symbol

Recommended

Q'ty

Unit

Amount

Q'ty / set Price

Part numbers that are circled not shown in the figure.

1 2 3 4 5 6 7 8

9 10 11 12

14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35

BASE LEG LEG INDOOR FAN MOTOR MOTOR MOUNT INNER COVER TURBO FAN INDOOR COIL THERMISTOR DRAIN SOCKET DRAIN PUMP DRAIN SENSOR DRAIN HOSE HEAT EXCHANGER HEAT EXCHANGER HEAT EXCHANGER DRAIN PAN CORNER SUPPORT(1) CORNER SUPPORT(2) CORNER SUPPORT(2) CORNER SUPPORT(3) LEAD WIRE COVER PANEL HOOK TERMINAL BLOCK TERMINAL BLOCK INDOOR FAN CAPACITOR CONTROLLER CASE INDOOR CONTROLLER BOARD FUSE TRANSFORMER ROOM TEMPERATURE THERMISTOR

BELL MOUTH ELECTRICAL PARTS COVER SPL WASHER DRAIN PLUG FAN GUARD CABEL FOR BOARD SENSOR HOLDER

1 2 2 1 3 1 1 1 1 1 1 1

1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1

1 2 2 1 3 1 1 1 1 1 1 1 1

1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1

1 2 2 1 3 1 1 1 1 1 1 1

1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1

(BG00T765G01) (BG00K209G01) (BG00K209G02)

(BG00T770G01)

(BG00K210G01) (BG00K211G01) (BG00K212G01) (RG00T856G01) (RG00T861G01) (BG17H174H02)

(BG25J542H04)

(BG00L601G23) (BG00A662G20)

MF1

RT2

DP DS

TB2 TB4

I.B

F2<I.B>

RT1

3P(L,N,;) 2P(1,2)

2.5+ 400V

250V 6.3A

Remarks

(Drawing No.)

– –

– T7W E00 762 R01 29H 105

– R01 41N 114 R01 08K 202 R01 29H 523 T7W 55K 355 R01 W28 266 R01 W28 527 T7W 552 480 T7W 553 480 R01 49H 480 S70 A00 529

–

– T7W 521 716 T7W 512 716 R01 29H 255

– T7W 27K 310 T7W 520 239 T7W 11K 799 R01 13A 202

–

– R01 08K 097 R01 A48 524 S70 A00 675 T7W 022 304 R01 005 533

Page 34

No.

Parts No. Parts Name Specifications

Wiring

Diagram

Symbol

Recom-

mended

Q'ty

Unit

Amount

Price

1 2 3 4 5 6 7 8 9

AUTO VANE AIR GUIDE VANE MOTOR SPRING JOINT 1 SPRING JOINT PUSH BUTTON VANE SUPPORT CORD HEATER GRILLE GEAR(RIGHT) GRILLE GEAR(LEFT)

4 1 1 1 1 1 8 1 1 1

<3/SET>

H240V 28.2W

Remarks

R01 29H 002 R01 29H 085 R01 29H 223 R01 29H 063 T7W 33K 063 R01 29H 056 R01 29H 047 T7W 560 258 R01 29H 040 R01 29H 041

Q'ty / set

PL-1.6/2/2.5

KJB.UK

PANEL PARTS PL-1.6KJB.UK PL-2KJB.UK PL-2.5KJB.UK

Page 35

OPTIONAL PARTS14

Note 1. How to connect refrigerant pipes.

Factory supplied optional refrigerant piping contains refrigerant at the above atmospheric pressure. As long as connection takes no more than 5 minutes, no air will enter, and there will be no need for air purging. Remove the blind caps and make the connections within 5 minutes. After the connections for the indoor and outdoor units are made, open the stop valve on the outdoor unit to allow refrigerant gas to flow. If piping length exceeds 5m, an additional charge of refrigerant is needed.

Note 2. The following main parts are cntained in the optional refrigerant piping kit.

Heat insulating cover, vinyl tapes, nipples, sleeve and flange (for wall hole), connecting cables.

1. REFRIGERANT PIPES

Service Ref. : PL-1.6KJB.UK / PL-2KJB.UK / PL-2.5KJB.UK

2. REMOTE CONTROLLER EXTENSION CABLE

When installing the remote controller at a distance from the air conditioner, use the designated extension cable with connector.

3. TIMER

3-1 Specifications

(The PAC-815PT with the PAC - 825AD.)

Part No. Pipe length Pipe size O.D. Connection method

PAC-05FFS-E

Liquid:[9.52

Indoor unit:Flared

Gas:[15.88 Outdoor unit:Flared

PAC-07FFS-E

PAC-10FFS-E

10m

PAC-15FFS-E

15m

Part No.

length

PAC-905EC

12m

PAC-906EC

20m

PAC-918EC

30m

PAC-919EC

50m

Part No.

Model Name

PAC-SK65PT

Program timer

Product name Model name Mounting method Clock system Clock accuracy

Display

Program cycle Timer setting unit Numbers of setting points Minimum ON/OFF interval Power failure safeguard Rated power supply Setback function

Program timer PAC-SK65PT Wall mounting Quartz clock

±50 seconds/month Time Liquid crystal display Week Liquid crystal display Timers setting Liquid crystal display

24 hours

30 minutes

48 /Day

–

5V DC

Provided

Page 36

Centralized

Remote

controller

2-wire cable

6-wire cable

To indoor unit

Connector CN1 Connector CN1

Program

timer

3-3. How to connect program timer

(1) Install the program timer next to the remote controller the same way as the remote controller is installed. (2) Connect the program timer and the remote controller with a 5-wire cable as shown in the figure below

NOTE : While the program timer is connected to the remote controller, the

24-hour ON/OFF timer on the remote controller will not operate.

3-2 Feature of program timer

(1) Daily timer function

Daily timer can be set in 30 minute units up to 24 hours. Each unit can be set for unit ON, unit OFF, or setback operation.

(2) Setback operation.

Set back operation is useful for reducing running costs Example : At a hotel with a 24-hour system

8:00~23:00 Cooling operation with set temperature at 26°C

23:00~8:00 Setback operation with 2 degrees of setback As shown in the chart on the right, the set temperature rises 2 degrees automatically during the setback operation. When the setback operation ends, normal operation will begin.

(3) Weekly timer function

Daily timer function can apply to each day of the week.

28˚C

˚C

8:00

Normal

operation

23:00

Setback

operation

8:00

Normal

operation

MITSUBISHI ELECTRIC

SET MONITOR

BACK

ON OFF

AHEAD

BACK

AHEAD

Mode selector button : Use this button to select "MONITOR" or

"SET" mode.

"MONITOR" : Indicates the current timer setting. All buttons except

SET/MONITOR will not work in this mode. This is the

normal status.

"SET" : Set to "SET" mode for clock adjustment, change of day, daily

and weekly timer setting.

Clock adjustment button : Used to adjust the current time. Press AHEAD

button to advance the time. Each time the button is

pressed the time advances by 1 minute, and pressing continuously advances 1 minute at a 0. 5 second interval. When the lower digit of the minutes becomes 0, the indication advances in 10 minute units. BACK button is used for reversing the time. Each time the button is pressed the time reverses by 1 minute, and pressing continuously reverses the time by 1 minute at a 0. 5 second interval. When the lower digit of the minute becomes 0, the indication reverses in 10 minutes units.

Weekday setting button : Used to set the day of the week.

Pressing button changes the day. light displays in the order of S M T W.

Weekly timer button : Used to set the weekly timer. Set back button : Used to set the set back amount. Set back can be set in the range of 1

to 9°C in 1°C unit.

Daily timer button : Used to set the daily timer in 30 minute units.

▼

Mode display

Current time

display

Weekly timer

display

Daily timer display

NOTE : display above is

only an example.

Current day display

3-4. Names and functions <PAC-SK65PT>

Page 37

4. CENTRALIZED REMOTE CONTROLLER

Allows individual or combined control of up to 16 units.

Part No. PAC-805RC

4-1. Dimensions

4-2. Names and Functions

"ENGAGED" indicator When this indicator is lit, transmission is in

progress and all switches are inoperative.

DUAL/CENTRAL switch This change-over switch governs the

operation of the accessory remote controller.

"DUAL" Instructions from both the accessory

remote controller and the centralized remote controller are valid. (Priority is given to the last instruction received.)

"CENTRAL" ON/OFF switching by the accessory

remote controller is invalidated. Operation is controlled by the centralized remote controller only.

Initial setting is "DUAL".

LCD Matrix Display This display indicates the operational

status of all connected units either by steady lighting or by flashing.

POWER ON/OFF switch Operation ON/OFF switch.

▲BACK ▼AHEAD buttons These buttons are used to designate the attached unit(s). (They designate the unit to be centrally controlled.)

●When group “00” is designated; collective ON/OFF instruction is sent to all units.

●When group “01”-“16“ is designated; ON/OFF instruction is sent only to the designated units.

ACTIVE/BYPASS switch This change-over switch for the program timer. Use “ACTIVE” when a program timer is connected. Use “BYPASS” when a program timer is not connected.

Independent “DUAL / CENTRAL” and “ACTIVE / BYPASS” setting of all the groups is possible. When power supply to the

centralized remote controller is cut, due to a power failure, for example all settings return to original “DUAL” and “BYPASS”.

Unit : mm

113

23.5

56.3

ENGAGED

GROUP

12345678910

ACTIVE BYPASS

DUAL CENTRAL

GROUP SELECTION

PROGRAM TIMER

CONTROLLER OPERATION

117

POWER ON/OFF

AHEAD

BACK

ACTIVE

BYPASS

DUAL

CENTRAL

MITSUBISHI ELECTRIC

117

ENGAGED

GROUP

12345678910

ACTIVE BYPASS

DUAL CENTRAL

ENGAGED

GROUP

12345678910

ACTIVE BYPASS

DUAL CENTRAL

GROUP SELECTION

PROGRAM TIMER

CONTROLLER OPERATION

GROUP

BACK

SELECTION

PROGRAM

ACTIVE

TIMER

BYPASS

DUAL

CONTROLLER

CENTRAL

OPERATION

10 9 8 7 6 5 4 3 2 1

POWER ON/OFF

AHEAD

BACK

ACTIVE

BYPASS

DUAL

CENTRAL

MITSUBISHI ELECTRIC

POWER ON/OFF

AHEAD

113

Page 38

ANE

(Y)

(W) (R) (O)

(BR)

POWER SUPPLY

Fuse(5A)

Tie-wrap

Wiring has to be changed when a 200,230 or 240V power is used.

Tie-wrap

TRANSFORMER

Transmission

TERMINAL-BLOCK FOR TRANSMISSION

TERMINAL-BLOCK OF POWER SUPPLY

200

220

230

240

BACK

ACTIVE BYPASS

POWER ON/OFF

DUAL

CENTRAL

AHEAD

ENGAGED

GROUP

ACTIVE BYPASS

GROUP SELECTION

PROGRAM TIMER

CONTROLLER OPERATION

DUAL CENTRAL

12345678910

10 9 8 7 6 5 4 3 2 1

To adaptor's terminal-block

Centralized remote controller

Non-polar, two-wire cable

To adaptor's terminal-block

Power supply board box

BACK

ACTIVE

BYPASS

POWER ON/OFF

DUAL

CENTRAL

AHEAD

ENGAGED

GROUP

ACTIVE BYPASS

GROUP SELECTION

PROGRAM TIMER

CONTROLLER OPERATION

DUAL CENTRAL

12345678910

10 9 8 7 6 5 4 3 2 1

Dip switch SW17

Centralized remote controller

Power supply board

4-3 Connection method

(1) Connections in the power supply cord.

1. Connect the power supply cord to the power supply terminal-block and fix it in-place with a tie-lap. Connect a single phase 200V AC (220, 230, 240V) to .

As is the GND terminal, be sure to ground the earth wire.

2. Connect the transmission line to the transmission terminal-block and fix it in-place with a tie-lap. Use a 1.6 (AWG 14) or above two-wire cable for the transmission line. CAUTION : Never connect the power supply cord to the transmission terminal-block.

(2) Connection method of centralized remote controller and power supply board.

1. Connect the centralized remote controller and power supply board with a non-polar, two-wire cable.

2. Wiring diagram 3. Set the max. address number with the dipswitch SW17

of the centralized remote controller.

A N

Page 39

5. PROGRAM TIMER ADAPTER

This adapter is needed when a program timer(PAC-815PT)or the centralized remote controller(PAC-805RC)is used.

5-2 Connection method

Connection and wiring methods differ with the type of the indoor unit used. Confirm the type before carrying out the work.

5-1 Parts included

Part No. PAC-825AD

1 ADAPTER ························1P 2 3-core cable··························1P

4 4-core cable··························1P

3 3-core cable··························1P

5 5-core cable··························1P

(1) Connections in the adapter Box

1. Connect the power supply cord to the terminal-block and fix it in-place with a tie-lap. Connect a single phase 200V (220, 230, 240V) AC to . As is the GND terminal, be sure to ground the earth wire.

2. Connect the transmission line to the transmission terminal-block and fix it in-place with a tie-lap, when a centralized remote controller is being used. CAUTION : Never connect the power supply cord to the transmission terminal-block

A N

Length : 2m (6' 7") Length : 2m (6' 7")

Wiring has to be changed when 200V power supply is used.

fig.1fig

TERMINAL BLOCK FOR TRANSMISSION

CN22

Dip switch

TRANS CN1 CN21 CN51 CN30 CN42 CN50 CN40

SW1

(AG)

TERMINAL BLOCK

ANE

FOR POWER SUPPLY

Tie-lap

Transmission cord

Fuse(5A)

POWER SUPPLY CORD

Transmission

CN22

TRANS

(W) (B) (Y)

200

220

-240

SW1

POWER SUPLLY

A N E

TRANSFORMER

Page 40

2. Set the address number (from SW1-1 to SW1-6) in the dipswitch when a centralized remote controller is being used. The address is the control number of each unit in the centralized control system. As the address serves as a time-delay device as well, sequential starts (all units are triggered collectively by one single ON instruction)must be set with different address numbers (greater than 0) for each adapter.

6. TIMER ADAPTER

This adapter is needed for system control and for operation via external contacts.

Adaptor

200~240V AC

3-core cable 5-core cable

To program timer or centralized remote controller

Fig.3

CN30 CN50

CN51CN2

Remote controller Indoor unit

Max. length of each cable is 10m.

230

15 15

86 70

hole

40 80 40 27

Fixing screw hole 4- 5.5

220

120

200

2 2 2.9

74 7

Fig. 4

SW1

Levers No. 1-6 can set the following addresses respectively with binary notations.

Address

Toggle

No.6 ON16No.5 ON8No.4 ON4No.3 ON2No.2 ON1No.1 ON

987654321

(Ex.1) 3 = 2 + 1 (Ex.2) 9 = 8 + 1 (Ex.3) 15 = 8 + 4 + 2 + 1

Part No. PAC-SA89TA-E

@ Connection from adaptor 4. Dimensions

ORN 1

2 3

BRN RED

Page 41

7. REMOTE INDICATION ADAPTER

This adapter is used for remote indication (operation / check) .

Part No. PAC-559AD

BRN

RED

CN51

connector (5P)

BRN RED

ORN YLW

GRN

JST XHP-3

Optional multiple display adapter

The maximum distance between indoor board and relay is 10m.

GREEN YELLOW

ORANGE

RED

BROWN

Electrical insulation is needed.

Wiring at the actual place (Field wiring)

ORN

YLW

GRN

Power supply

Page 42

Part No. PAC-SE01AS-E

Applied Service Ref. PL-1.6KJB.UK / PL-2KJB.UK / PL-2.5KJB.UK

8. SPACE PANEL

Part No. PAC-SE06WP-E

Applied Service Ref. PL-1.6KJB.UK / PL-2KJB.UK / PL-2.5KJB.UK

9. WIDE PANEL

Part No. PAC-SE14SP-E

Applied Service Ref. PL-1.6KJB.UK / PL-2KJB.UK / PL-2.5KJB.UK

10. AIR OUTLET SHUTTER PLATE

750

Hole

R7.8

R26

750

R7.8

965

Hole

965

R25

R37

R31

R25

R37

R31

440

99122

Page 43

Part No. PAC-SE21TM-E

Applied Service Ref. PL-1.6KJB.UK / PL-2KJB.UK / PL-2.5KJB.UK

11. MULTI-FUNCTIONAL CASEMENT

Part No. PAC-SE13KF-E

Applied Service Ref. PL-1.6KJB.UK / PL-2KJB.UK / PL-2.5KJB.UK

12. HIGH-EFICIENCY FILTER ELEMENT

Casement

1PC

Screw with

washer

Duct flange

Tapping

screw

Hook Band

4PCS

M5x0.8x15

1PC

6PCS

4x10

2PCS 1PC

Page 44

HEAD OFFICE MITSUBISHI DENKI BLDG.MARUNOUCHI TOKYO100 TELEX J24532 CABLE MELCO TOKYO

Issued in Jun. 1997 No. OC146 510

New publication, effective Jun. 1997. Specifications subject to change without notice.