Mitsubishi OC406 Service Manual

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SPLIT-TYPE,HEAT PUMP AIR CONDITIONERS

ON/OFF

TEMP.

TECHNICAL & SERVICE MANUAL

June 2006

No. OC406

Series PLH

Indoor unit [Model names]

PLH-1.6KAKH

PLH-2KAKH

PLH-2.5KAKH

PLH-1.6KAK

PLH-2KAK

PLH-2.5KAK

INDOOR UNIT

Ceiling Cassettes

[Service Ref.]

PLH-1.6KAKH.UK PLH-2KAKH.UK PLH-2.5KAKH.UK PLH-1.6KAK.UK PLH-2KAK.UK PLH-2.5KAK.UK

REMOTE CONTROLLER

• This manual does not cover the outdoor units. When servicing outdoor units please refer to the outdoor unit`s service manual No. OC325 together with this manual.

• RoHS compliant products have <G> mark on spec name plate.

CONTENTS

1. REFERENCE MANUAL ·······················2

2. PART NAMES AND FUNCTIONS········2

3. SPECIFICATIONS·································4

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

5. OUTLINES AND DIMENSIONS··········12

6. WIRING DIAGRAM ·····························14

REFRIGERANT SYSTEM DIAGRAM

8. TROUBLESHOOTING························16

9. FUNCTION SETTING ·························30

10. 4-WAY AIR FLOW SYSTEM···············36

11. SYSTEM CONTROL···························37

12. DISASSEMBLY PROCEDURE···········51

13. RoHS PARTS LIST·····························54

14. OPTIONAL PARTS·····························58

······15

Disperses airflow up and down and adjusts the angle of airflow direction.

Grille

Filters Removes dust and pollutants from intake air

Sets airflow to horizontal automatically during cooling or dehumidifying.

Air Intake Intakes air from room.

Horizontal Air Outlet

Auto Air Swing Vane

Service Ref. Service Manual No.

PUH-1.6/2/2.5/3VKA.TH PUH-3YKA.TH PUH-4/5/6YKSA.TH

OC325

REFERENCE MANUAL

OUTDOOR UNIT’S SERVICE MANUAL

PART NAMES AND FUNCTIONS

● Indoor Unit

PLH-1.6KAKH.UK PLH-1.6KAK.UK PLH-2KAKH.UK PLH-2KAK.UK PLH-2.5KAKH.UK PLH-2.5KAK.UK

PAR-21MAA

ON/OFF

FILTER

CHECK

OPERATION

CLEAR

TEST

TEMP.

BACK DAY

MONITOR/SET

CLOCK

ON/OFF

Set Temperature buttons

Down

Timer Menu button (Monitor/Set button)

Mode button (Return button)

Set Time buttons

Back

Ahead

Timer On/Off button (Set Day button)

Opening the door.

ON/OFF button

Fan Speed button

Filter button (<Enter> button)

Test Run button

Check button (Clear button)

Airflow Up/Down button

Louver button ( Operation button)

To preceding operation number.

Ventilation button (

Operation button)

To next operation number.

● Wired remote controller

For purposes of this explanation, all parts of the display are shown as lit. During actual operation, only the relevant items will be lit.

˚F˚C

ERROR CODE

AFTER

TIMER

TIME SUN MON TUE WED THU FRI SAT

ON OFF

Hr AFTER

FILTER

FUNCTION

ONLY1Hr.

WEEKLY

SIMPLE

AUTO OFF

Identifies the current operation

Shows the operating mode, etc. * Multilanguage display is sup-

ported.

“Centrally Controlled” indicator

Indicates that operation of the remote controller has been prohibited by a master controller.

“Timer Is Off” indicator

Indicates that the timer is off.

Temperature Setting

Shows the target temperature.

Day-of-Week

Shows the current day of the week.

Time/Timer Display

Shows the current time, unless the simple or Auto Off timer is set. If the simple or Auto Off timer is set, shows the time remaining.

“Sensor” indication

Displayed when the remote controller sensor is used.

“Locked” indicator

Indicates that remote controller buttons have been locked.

“Clean The Filter” indicator

Comes on when it is time to clean the filter.

Timer indicators

The indicator comes on if the corresponding timer is set.

Up/Down Air Direction indicator

The indicator shows the direction of the outcoming airflow.

“One Hour Only” indicator

Displayed if the airflow is set to weak and downward during COOL or DRY mode. (Operation varies according to model.) The indicator goes off after one hour, at which time the airflow direction also changes.

Room Temperature display

Shows the room temperature.

Louver display

Indicates the action of the swing louver. Does not appear if the louver is stationary.

(Power On indicator)

Indicates that the power is on.

Fan Speed indicator

Shows the selected fan speed.

Ventilation indicator

Appears when the unit is running in Ventilation mode.

On the controls are set, the same operation mode can be repeated by simply pressing the ON/OFF button.

● Operation buttons

● Display

Caution

● Only the Power on indicator lights when the unit is stopped and power supplied to the unit.

● If you press a button for a feature that is not installed at the indoor unit, the remote controller will display the “Not Available”

message. If you are using the remote controller to drive multiple indoor units, this message will appear only if he feature is not present at the parent unit.

● When power is turned ON for the first time, it is normal that “PLEASE WAIT” is displayed on the room temperature indication (For max. 2minutes). Please wait until this “PLEASE WAIT” indication disappear then start the operation.

SPECIFICATIONS3

Service Ref.

Item

Btu/h

A A

K/min(CFM)

mmAq,Pa

dB(A) mm,(in.) mm,(in.) mm,(in.) mm,(in.)

kg,(lbs)

A A

/min(CFM

)

dB(A) mm,(in.) mm,(in.) mm,(in.)

kg,(lbs)

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

Function Capacity Total input

Service Ref.

Power supply (phase, cycle, voltage)

Input Running current

Starting current External finish Heat exchanger

Fan (drive) o No.

Fan motor output

Airflow (Low-High)

External static pressure Booster heater Operation control & Thermostat Noise level (Low-High) Cond. drain conn. O.D.

Dimensions

Weight

Service Ref.

Power supply (phase, cycle, voltage)

Input

Running current

Starting current External finish Refrigerant control Compressor

Model

Motor output

Starter type

Protection devices Heat exchanger

Fan (drive) o No.

Fan motor output

Airflow Defrost method Noise level

Dimensions

Weight Refrigerant

Charge Pipe size O.D.

Connection method

Between the indoor & outdoor unit

INDOOR UNITOUTDOOR UNIT

REFRIGERANT PIPING

PLH-1.6KAK.UK/ PLH-1.6KAKH.UK

Cooling

15,000

4,400

1.59

0.15

0.64

0.70

UNIT : 660(26) UNIT : 660(26) UNIT : 253(10)

UNIT : 19(42)[20(44)]

1.44

6.74

Heating

15,900[20,600]

4,650[6,050]

1.51[3.20]

0.10[1.50]

0.45[6.28]

0.50[6.91]

PANEL : 760(30) PANEL : 760(30)

PANEL : 30(1-1/8)

PANEL : 3.7(8)[3.7(8)]

1.41

6.60

D H

Liquid

Gas Indoor side Outdoor side Height difference Piping length

PLH-1.6KAK.UK/ PLH-1.6KAKH.UK

Single, 50Hz, 220-240V

Galvanized sheets with gray heat insulation

Plate fin coil

Turbo fan [direct) o 1

0.030

13-16(460-565)

0(direct blow)

[1.4]

Remote controller & built-in

32-37

32(1-1/4)

PUH-1.6VKA.TH

Single, 50Hz, 220-240V

Munsell 3.0Y 7.8/1.1

Capillary tube

Hermetic

RH247VFCT

1.2

Line start

Inner thermostat, High pressure switch

Plate fin coil

Propeller (direct) o 1

0.065

45(1,590)

Reverse cycle

870(34-1/4)

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

650 (25-5/8)

53(117)

R-22

2.2(4.8)

9.52 (3/8)

15.88 (5/8) Flared Flared

Max. 40m Max. 40m

Note: Rating condition (ISO T1<JIS B8616>)

Cooling : indoor : D.B. 27:, W.B. 19: Heating : indoor : D.B. 20: Refrigerant piping length (one way) : 5m (16ft)

outdoor : D.B. 35:, W.B. 24: outdoor : D.B. 7:, W.B. 6:

Item

Function Capacity Total input

Service Ref.

Power supply (phase, cycle, voltage)

Input Running current

Starting current External finish Heat exchanger

Fan (drive) o No.

Fan motor output

Airflow (Low-High)

External static pressure Booster heater Operation control & Thermostat

INDOOR UNITOUTDOOR UNIT

Noise level (Low-High) Cond. drain conn. O.D.

Dimensions

D H

Weight

Service Ref.

Power supply (phase, cycle, voltage)

Input

Running current

Starting current External finish Refrigerant control Compressor

Model

Motor output

Starter type

Protection devices Heat exchanger

Fan (drive) o No.

Fan motor output

Airflow Defrost method Noise level

Dimensions

H Weight Refrigerant

Charge

Pipe size O.D.

Connection method Between the indoor &

outdoor unit

REFRIGERANT PIPING

Note: Rating condition (ISO T1<JIS B8616>)

Cooling : indoor : D.B. 27:, W.B. 19: Heating : indoor : D.B. 20: Refrigerant piping length (one way) : 5m (16ft)

outdoor : D.B. 35:, W.B. 24: outdoor : D.B. 7:, W.B. 6:

Liquid

Gas Indoor side Outdoor side Height difference Piping length

Service Ref.

Btu/h

A A

K/min(CFM)

mmAq,Pa

dB(A) mm,(in.) mm,(in.) mm,(in.) mm,(in.)

kg,(lbs)

A A

/min(CFM

dB(A) mm,(in.) mm,(in.) mm,(in.)

kg,(lbs)

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

PLH-2KAK.UK/ PLH-2KAKH.UK

Cooling

18,400

5,400

2.34

Heating

19,800[24,600]

5,800[7,200]

2.32[4.09]

PLH-2KAK.UK/ PLH-2KAKH.UK

Single, 50Hz, 220-240V

0.14

0.65

0.72

0.10[1.50]

0.45[6.28]

0.50[6.91]

Galvanized sheets with gray heat insulation

Plate fin coil

Turbo fan (direct) o 1

0.030

13-16(460-565)

0(direct blow)

[1.4]

Remote controller & built-in

32-37

32(1-1/4) UNIT : 660(26) UNIT : 660(26) UNIT : 253(10)

UNIT : 19(42)[20(44)]

PANEL : 760(30) PANEL : 760(30)

PANEL : 30(1-1/8)

PANEL : 3.7(8)[3.7(8)]

PUH-2VKA.TH

Single, 50Hz, 220-240V

2.20

9.86 45

2.22

9.95 45

Munsell 3.0Y 7.8/1.1

Capillary tube

Hermetic

NH38VMDT

1.7

Line start

Inner thermostat, HP switch

Plate fin coil

Propeller (direct) o 1

0.065

)

45(1590)

Reverse cycle

870(34-1/4)

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

650 (25-5/8)

64(141)

R-22

2.2(4.8)

9.52 (3/8)

15.88 (5/8) Flared Flared

Max. 40m Max. 40m

Service Ref.

Item

Btu/h

A A

K/min(CFM)

mmAq,Pa

dB(A) mm,(in.) mm,(in.) mm,(in.) mm,(in.)

kg,(lbs)

A A

/min(CFM

)

dB(A) mm,(in.) mm,(in.) mm,(in.)

kg,(lbs)

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

Function Capacity Total input

Service Ref.

Power supply (phase, cycle, voltage)

Input Running current

Starting current External finish Heat exchanger

Fan (drive) o No.

Fan motor output

Airflow (Low-High)

External static pressure Booster heater Operation control & Thermostat Noise level (Low-High) Cond. drain conn. O.D.

Dimensions

Weight

Service Ref.

Power supply (phase, cycle, voltage)

Input

Running current

Starting current External finish Refrigerant control Compressor

Model

Motor output

Starter type

Protection devices Heat exchanger

Fan (drive) o No.

Fan motor output

Airflow Defrost method Noise level

Dimensions

Weight Refrigerant

Charge Pipe size O.D.

Connection method Between the indoor &

outdoor unit

INDOOR UNITOUTDOOR UNITREFRIGERANT

PLH-2.5KAK.UK/ PLH-2.5KAKH.UK

Cooling

21,500

6,300

2.60

0.14

0.61

0.67

UNIT : 660(26) UNIT : 660(26) UNIT : 253(10)

UNIT : 20(44)[21(46)]

2.46

10.68 52

Heating

24,600[31,700]

7,200[9,300]

2.33[4.87]

0.10[2.20]

0.45[9.20]

0.50[10.12]

PANEL : 760(30) PANEL : 760(30)

PANEL : 30(1-1/8)

PANEL : 3.7(8)[3.7(8)]

2.23

9.78 52

D H

Liquid

Gas Indoor side Outdoor side Height difference Piping length

PLH-2.5KAK.UK/ PLH-2.5KAKH.UK

Single, 50Hz, 220-240V

Galvanized sheets with gray heat insulation

Plate fin coil

Turbo fan (direct) o 1

0.030

14-17(495-600)

0(direct blow)

[2.1]

Remote controller & built-in

35-39.5

32(1-1/4)

PUH-2.5VKA.TH

Single, 50Hz, 220-240V

Munsell 3.0Y 7.8/1.1

Capillary tube

Hermetic

NH41VMDT

2.0

Line start

Inner thermostat, HP switch

Plate fin coil

Propeller (direct) o 1

0.085

50(1764)

Reverse cycle

870(34-1/4)

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

850(34-1/4)

68(150)

R-22

2.8(6.2)

9.52(3/8)

15.88 (5/8) Flared Flared

Max. 50m Max. 50m

Note: Rating condition (ISO T1<JIS B8616>)

Cooling : indoor : D.B. 27:, W.B. 19: Heating : indoor : D.B. 20: Refrigerant piping length (one way) : 5m (16ft)

outdoor : D.B. 35:, W.B. 24: outdoor : D.B. 7:, W.B. 6:

Service Ref.

PLH-1.6KAK.UK PLH-1.6KAKH.UK/ PUH-1.6VKA.TH

PLH-2KAK.UK PLH-2KAKH.UK/ PUH-2VKA.TH

PLH-2.5KAK.UK PLH-2.5KAKH.UK/ PUH-2.5VKA.TH

Indoor

intake

air

WB:

16 18 20 22 16 18 20 22 16 18 20 22

CA P.C. CA P.C. CA P.C. CA P.C. CA P.C. CA P.C.

20 25 30 35 40 45

Outdoor intake air DB:

4439

1.27 4317 1.33 4159 1.43 3990 1.53 3812 1.64 3624

1.74

4726

1.30 4602 1.36 4434 1.46 4258 1.57 4074 1.68 3882

1.79

5017

1.32 4899 1.38 4724 1.50 4542 1.61 4352 1.72 4154

1.84

5310

1.35 5209 1.41 5028 1.53 4840 1.65 4645 1.77 4442

1.90

5448

1.88 5299 1.96 5104 2.11 4897 2.26 4678 2.41 4447

2.56

5800

1.91 5648 2.00 5442 2.15 5226 2.31 5000 2.47 4764

2.63

6157

1.95 6012 2.04 5798 2.20 5574 2.37 5341 2.54 5099

2.71

6517

1.99 6392 2.08 6171 2.25 5940 2.42 5700 2.61 5451

2.80

6356

2.08 6182 2.17 5955 2.34 5713 2.51 5458 2.68 5189

2.85

6767

2.13 6589 2.22 6349 2.39 6097 2.57 5834 2.75 5558

2.92

7183

2.17 7014 2.26 6764 2.45 6503 2.63 6231 2.82 5948

3.01

7603

2.21 7458 2.31 7199 2.50 6930 2.69 6650 2.90 6360

3.11

DATA

4-1. PERFORMANCE DATA 50Hz

1) COOLING CAPACITY

Note CA:Capacity (W)

P.C. :Power consumption (kW)

Cooling capacity correction factors

Service Ref.

PLH-1.6 KAK/KAKH.UK PLH-2 KAK/KAKH.UK PLH-2.5 KAK/KAKH.UK

Refrigerant piping length (one way)

5m 10m 15m 20m 25m 30m 35m 40m 45m 50m

1.00 0.993 0.984 0.978 0.969 0.961 0.956 0.948 — —

1.00 0.992 0.983 0.978 0.966 0.959 0.950 0.945 — —

1.00 0.989 0.980 0.970 0.960 0.950 0.940 0.930 0.920 0.910

-5

CA P.C. CA P.C. CA P.C. CA P.C. CA P.C. CA P.C. 3184 1.03 3650 1.14 4160 1.25 4714 1.38 5312 1.51 5952 1.64 3049 1.11 3506 1.23 4003 1.35 4538 1.48 5112 1.62 5724 1.77 2930 1.18 3364 1.31 3844 1.44 4370 1.59 4942 1.74 5560 1.90 3972 1.58 4552 1.75 5188 1.93 5880 2.11 6625 2.31 7424 2.52 3803 1.71 4373 1.89 4993 2.08 5661 2.28 6376 2.49 7139 2.71 3655 1.81 4196 2.01 4795 2.22 5451 2.44 6165 2.67 6935 2.91 4109 1.56 4709 1.73 5367 1.90 6083 2.09 6854 2.28 7680 2.49 3934 1.68 4524 1.86 5165 2.05 5856 2.25 6596 2.46 7386 2.68 3781 1.79 4341 1.98 4960 2.19 5639 2.41 6377 2.64 7174 2.87

Service Ref.

PLH-1.6KAK.UK PLH-1.6KAKH.UK/ PUH-1.6VKA.TH

PLH-2KAK.UK PLH-2KAKH.UK/ PUH-2VKA.TH

PLH-2.5KAK.UK PLH-2.5KAKH.UK/ PUH-2.5VKA.TH

Indoor

intake

air

DB:

15 20 25 15 20 25 15 20 25

-10 0 5 10 15

Outdoor intake air WB:

Cooling performance curve(50Hz)

1.4

1.2

1.0

0.8

0.6

1.4

1.2

1.0

0.8

0.6

0.4

-5 5 15 253546 OUTDOOR D.B.(°C)

TOTAL INPUT (RATIO) CAPACITY (RATIO)

INDOOR W.B.(°C)

22 20 18 16

1.4

1.2

1.0

0.8

0.6

1.4

1.2

1.0

0.8

0.6

0.4

-5 5 15 253546 OUTDOOR D.B.(°C)

TOTAL INPUT (RATIO) CAPACITY (RATIO)

INDOOR W.B.(°C)

22 20 18 16

2) HEATING CAPACITY

Heating performance curve(50Hz)

Note CA:Capacity (W)

P.C. :Power consumption (kW)

Heating capacity correction factors

Service Ref.

PLH-1.6 KAK/KAKH.UK PLH-2 KAK/KAKH.UK PLH-2.5 KAK/KAKH.UK

5m 10m 15m 20m 25m 30m 35m 40m 45m 50m

1.00 1.00 1.00 1.00 1.00 1.00 0.998 0.995 — —

1.00 1.00 1.00 1.00 1.00 1.00 0.998 0.995 0.993 0.990

Refrigerant piping length (one way)

4-2. ELECTRICAL DATA

Indoor unit …220V 50Hz 1phase Outdoor unit…220V 50Hz 1phase

Service Ref.

Mode Capacity (W) Total Input (kW)

Input (kW) Current (A) Starting current (A)

Indoor unit

Input (kW) Current (A) Starting current (A)

Outdoor unit

Indoor unit …230V 50Hz 1phase Outdoor unit…230V 50Hz 1phase

Service Ref.

Mode Capacity (W) Total Input (kW)

Input (kW) Current (A) Starting current (A)

Indoor unit

Input (kW) Current (A) Starting current (A)

Outdoor unit

Indoor unit

Outdoor unit

Indoor unit

Outdoor unit

PLH-1.6KAK/ KAKH.UK

PUH-1.6VKA.TH

Cool

4,300

1.48

0.12

0.60

0.66

1.36

6.79 30

Heat

4,550

[5,720]

1.40

[2.57]

0.08

[1.25]

0.41

[5.75]

0.45

[6.33]

1.32

6.59 30

PLH-1.6KAK/ KAKH.UK

PUH-1.6VKA.TH

Cool

4,350

1.54

0.14

0.62

0.68

1.40

6.76 32

Heat

4,600

[5,890]

1.45

[3.01]

0.09

[1.38]

0.43

[6.02]

0.47

[6.62]

1.36

6.57 32

PLH-2KAK/ KAKH.UK

PUH-2VKA.TH

Cool

5,300

2.24

0.12

0.61

0.67

2.12

9.83 43

Heat

5,700

[6,870]

2.22

[3.73]

0.08

[1.25]

0.42

[5.76]

0.46

[6.34]

2.14

9.93 43

PLH-2KAK/ KAKH.UK

PUH-2VKA.TH

Cool

5,350

2.29

0.13

0.63

0.69

2.16

9.78 44

Heat

5,750

[7,040]

2.27

[3.92]

0.09

[1.38]

0.44

[6.03]

0.48

[6.63]

2.18

9.87 44

PLH-2.5KAK/ KAKH.UK

PUH-2.5VKA.TH

Cool

6,200

2.53

0.12

0.57

0.63

2.41

11.18 52

Heat

6,900

[8,660]

2.25

[4.41]

0.09

[1.85]

0.46

[9.28]

0.80

[8.79]

2.16

10.02 52

PLH-2.5KAK/ KAKH.UK

PUH-2.5VKA.TH

Cool

6,250

2.57

0.13

0.59

0.65

2.44

10.94 52

Heat

7,050

[8,980]

2.29

[4.64]

0.09

[2.02]

0.43

[8.82]

0.47

[9.70]

2.20

9.86 52

Indoor unit …240V 50Hz 1phase Outdoor unit…240V 50Hz 1phase

Service Ref.

Indoor unit Outdoor unit

Mode Capacity (W) Total Input (kW)

Input (kW) Current (A) Starting current (A)

Indoor unit

Input (kW) Current (A) Starting current (A)

Outdoor unit

PLH-1.6KAK/ KAKH.UK

PUH-1.6VKA.TH

Cool

4,400

1.59

0.15

0.64

0.70

1.44

6.74 33

Heat

4,650

[6,050]

1.51

[3.20]

0.10

[1.50]

0.45

[6.28]

0.50

[6.91]

1.41

6.60 33

PLH-2KAK/ KAKH.UK

PUH-2VKA.TH

Cool

5,400

2.34

0.14

0.65

0.72

2.20

9.86 45

Heat

5,800

[7,200]

2.32

[4.09]

0.10

[1.50]

0.45

[6.28]

0.50

[6.91]

2.22

9.95 45

PLH-2.5KAK/ KAKH.UK

PUH-2.5VKA.TH

Cool

6,300

2.60

0.14

0.67

2.46

10.68 52

Heat

7,200

[9,300]

2.33

[4.87]

0.10

[2.20]

0.45

[9.20]

0.80

[9.55]

2.23

9.78 52

TotalElectrical circuitRefrigerant circuitIndoor side

Outdoor

side

Service Ref.

SHF

V A

Mpa•G Mpa•G

°C °C °C

DB°C

WB°C

DB°C DB°C

WB°C

Mode

Capacity Input

Indoor unit Service Ref.

Phases, Hz Volts Amperes

Outdoor unit Service Ref.

Phases, 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

PLH-1.6KAK.UK

PLH-1.6KAKH.UK

PLH-1.6KAK.UK

PLH-1.6KAKH.UK

1,50

240

PUH-1.6VKA.TH

1,50

240

PLH-2KAK.UK

PLH-2KAKH.UK

PLH-2KAK.UK

PLH-2KAKH.UK

1,50

240

PUH-2VKA.TH

1,50

240

PLH-2.5KAK.UK

PLH-2.5KAKH.UK

PLH-2.5KAK.UK

PLH-2.5KAKH.UK

1,50

240

PUH-2.5VKA.TH

1,50

240

Cooling

4,400

1.59

0.64

6.74

1.80

0.54

78.7

48.5

8.5 5

27 19

16.1 35 24

0.83

0.21

Heating

4,650

1.51

0.45

6.60

1.70

0.40

77.2 —

0.7 5

20 15

35.2 7 6

— —

Cooling

5,400

2.34

0.65

9.86

1.90

0.46

84.0

50.7

4.8 5

27 19

15.0 35 24

0.76

0.21

Heating

5800

2.32

0.45

9.95

1.94

0.34

86.4 —

-1.8 5

20 15

39.4 7 6

— —

Cooling

6,300

2.60

0.61

10.68

1.95

0.50

82.8

51.8

6.7 5

27 19

13.8 35 24

0.75

0.14

(19.9)

(5.1)

(17.4)

(3.7)

(19.3)

(4.7)

(19.8)

(3.5)

(18.3)

(5.5)

(kgf/G•G) (kgf/G•G)

(17.3)

(4.1)

Heating

7,200

2.33

0.45

9.78

1.71

0.36

76.0 —

-1.5

5 20 15

41.2 7 6

— —

4-3. STANDARD OPERATION DATA

Air flow Air speed Coverage range



K/min

m/W.

PLH-1.6KAK/ KAKH.UK

PLH-2KAK/ KAKH.UK

16.0

5.6

6.0

PLH-2.5KAK/ KAKH.UK

17.0

5.9

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

K/min

m/W.

17.0

5.9

6.4 0

18.0

6.3

6.8 0

Standard

High ceiling

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

4-4. OUTLET AIR SPEED AND COVERAGE RANGE

W The air coverage range is the value up to the position where the air speed is 0.25m/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 the furniture inside the room.

4-5. NOISE CRITERION CURVES

Ambient temperature 27:

UNIT

1.5m

MICROPHONE

CEILING

PLH-1.6KAK.UK PLH-1.6KAKH.UK PLH-2KAK.UK PLH-2KAKH.UK

APPROXIMATE

THRESHOLD OF HEARING FOR CONTINUOUS

OCTAVE BAND SOUND PRESSURE LEVEL, dB (0 dB = 0.0002 µbar)

NOISE

63 125 250 500 1000 2000 4000 8000

BAND CENTER FREQUENCIES, Hz

NOTCH

High

Low

SPL(dB)

37 32

LINE

NC-70

NC-60

NC-50

NC-40

NC-30

NC-20

PLH-2.5KAK.UK PLH-2.5KAKH.UK

APPROXIMATE

THRESHOLD OF HEARING FOR CONTINUOUS

OCTAVE BAND SOUND PRESSURE LEVEL, dB (0 dB = 0.0002 µbar)

NOISE

63 125 250 500 1000 2000 4000 8000

BAND CENTER FREQUENCIES, Hz

NOTCH

High Low

SPL(dB)

39.5 35

LINE

NC-70

NC-60

NC-50

NC-40

NC-30

NC-20

OUTLINES AND DIMENSIONS5

1

Refrigerant pipe

([ 9.52mm)

Flared connection

3/8F

2

Refrigerant pipe

([ 15.88mm)

Flared connection

5/8F

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

135

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

29830

- 2

507

660

Terminal block for heater

Terminal block for remote controller

Terminal block for power supply

Drain hole

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 grille 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 filter

NOTE 1.The electrical parts box may be removed during servicing.

When connecting the power line and the control wire, provide enough length to the electric wires.

NOTE 2.When installing the optional high-efficiency filter, the dimension

between the transom and ceiling shall be more than 440mm. Also, when installing the optional fresh air intake casement or the multi-functional casement, the dimension between the transom and ceiling shall be more than 440mm. (The optional high-efficiency filter can also be installed.)

- 2

INDOOR UNIT PLH-1.6KAKH.UK PLH-2KAKH.UK PLH-2.5KAKH.UK PLH-1.6KAK.UK PLH-2KAK.UK PLH-2.5KAK.UK

Unit : mm

WIRED REMOTE CONTROLLER

unit : mm

130

120

WIRING DIAGRAM6

1 2 3 4 5

DELS

Table 2

Manufacture/Service

PLH-1.6KAK PLH-1.6KAKH

-2

KAK

-2

KAKH

1 2 3 4 5

PLH-2.5KAK PLH-2.5KAKH

1 2 3 4 5

12345678

MODELS

SW5

Manufacture/Service

PLH-KAK PLH-KAKH

Table 3

1. S

ols used in w

iring diag

above are, : C

onn

ector, : T

erm

inal (block).

2. Indoo

r and outdoor conn

ecting

ires are m

ade W

ith polarities, m

ake W

iring

tching

term

inal num

ers(1, 2

, 3).

3. S

ce the ou

tdoor side electric w

irin

g m

ay chang

e be su

to check the outdoor

unit electric w

iring for servicing.

ON OFF

DELS

Table 1

Manufacture/Service

PLH-KAK

1 2 3 4 5

PLH-KAKH

ase

t th

e volta

usin

g th

tro

lle

r th

ttin

g m

r to

nit Insta

lla

tio

1 2

88H

FS1

FS2

RED

BLU

TB2

ER SUPPLY ~(1PHASE) 220-240V 50Hz 220V 60Hz

5 6

YLW

GRY

26H

YLW

HEATER

CN24

88H

SW6

ON OFF

RED

WHT

BLK

2 1

3 2 1

CN2S

(WHT)

CNSK

(RED)

1 2 3

L N

P.B

TB4

TB2

TB5

TB6

R.B

TRANSMISSION W

IRES DC12V

1 3

TH1

1 2

TH2

5 3

(WHT)

VANE

(GRN)

(BLU)

(RED)

(WHT)

LED

.SEN

LIQ

TAK

)

I.B

2 7

1 6

GRILLE

DC13.1V

CN30 (BLK)

CN2D (WHT)

POW

)

POWER

)

POWER

Refer to tables 1, 2 and 3.

RED

RED BLU

YLW ORN BRN

GRN/YLW

RED

BLU

BLK

BLU

BLK

RED

BLU

BRN

VANE CN23

(GRN

)

To o

utdoo

(BLU

)

POWER SUPPLY ~(1PHASE) 220-240V 50Hz 220V 60Hz

[Self-diagnosis]

1.For details on how to operate self-diagnosis with the wireless remote control, refer to the technical manuals etc.

2.For the wired remote control:When you quickly press twice the CHECK switch on the remote control, the unit begins self-diagnosis. and Check Codes generated in the past appear on the display. For Check Codes and symptoms refer to the table below.

Check Code

P1 P2 P4 P5

Abnormality of room temperature thermistor (TH1). Abnormality of pipe temperature thermistor/Liquid (TH2). Abnormality of drain sensor (DS). Malfunction of drain-up machine.

Symptom

Freezing / overheating protection is working.

E0-E5

Abnormality in outdoor unit. Refer to outdoor unit wiring diagram. Abnormality of the signal transmission between remote controller and indoor unit.

----

FFFF

No trouble generated in the past. No corresponding unit.

Abnormality of indoor controller board.

[Emergency operation procedure]

1.When the wired remote control or the indoor unit microcomputer has failed,but all other compornents work if you set the switch (SWE, SW6) on the indoor control board, the indoor unit will begin properly Emergency Operation. WNote on the wireless remote control: when the remote control does not function, it is possible to activate Emergency Operation by using the indoor unit emergency operation switch (SW1,SW2 of the wireless signal receiver board). However,if the indoor unit microcomputer has failed,it is nesessary to proceed with points 2 and 3 below as in the case of the wired remote controller.

2.When you activate emergency operation of the cooling or heating, you have to set the switch (SWE) and switch (SW6) on the indoor controller. SWE : ON • Indoor fan is running at high speed. • Drain-up machine is working. SW6-1 : ON • Emergency operation of cooling mode. SW6-1,2 : ON • Emergency operation of heating mode.

3.Before you activate emergency operation, check the following points: (1) Emergency operation cannot be activated when:

• the outdoor unit malfunctions. • the indoor fan malfunctions.

• when it has detected the malfunction of drain-up machine during self-diagnosing. (2) Emergency operation becomes continuous only by switching the power source on/off. ON/OFF on the remote control or temperature control etc,dose not function. (3) Avoid operating for a long time when the outdoor unit begins defrosting while emergency operation of the heating is activated, because it will start to blow cold air. (4) Emergency cooling should be limited to 10 hours maximum (The indoor unit heat exchanger may freeze). (5) After emergency operation has been deactivated, set the switches etc.to their original positions. (6) Movement of the vanes does not work in emergency operation, therefore you have to slowly set them manually to the appropriate position.

SYMBOL NAME

HEATER

FS1

THERMAL FUSE(98;, 10A)

FS2

THERMAL FUSE(77;, 10A)

HEATER

26H

HEATER THERMAL SWITCH

88H

HEATER CONTACTOR

SYMBOL NAME

FAN MOTOR

VANE MOTOR

LIMIT SWITCH

DEW PREVEMTION HEATER

DRAIN-UP MACHINE

DRAIN SENSOR

TB4

TERMINAL BLOCK(INDOOR/OUTDOOR CONNECTING LINE)

R.B

WIRED REMOTE CONTROLLER BOARD

TB2

TERMINAL BLOCK(POWER SUPPLY)

TB5,TB6

TERMINAL BLOCK(REMOTE CONTROLLER TRANSMISSION LINE)

TH1

ROOM TEMP. THERMISTOR (0;/15k', 25;/5.4k' DETECT)

TH2

PIPE TEMP. THERMISTOR/LIQUID (0;/15k', 25;/5.4k' DETECT)

CAPACITOR(FAN MOTOR)

SYMBOL NAME

P.B

INDOOR POWER BOARD

I.B

INDOOR CONTROLLER BOARD

FUSE

FUSE(T6.3AL250V)

ZNR

VARISTOR

BCR

FAN CONTROL ELEMENT

CN2L

CONNECTOR(LOSSNAY)

CN32

CONNECTOR(REMOTE SWITCH)

CN41

CONNECTOR(HA TERMINAL-A)

CN51

CONNECTOR(CENTRALLY CONTROL)

LED1

POWER SUPPLY(I.B)

LED2

POWER SUPPLY(I.B)

RELAY(DRAIN PUMP)

RELAY(FAN MOTOR)

SW1

SWITCH(MODEL SELECTION)wSee table 1

SW2

SWITCH(CAPACITY CORD)wSee table 2

SW5

SWITCH(SYSTEM SELECTION)wSee table 3

SW6, SWE

CONNECTOR(EMERGENCY OPERATION)

SWE

CONNECTOR(EMERGENCY OPERATION)

[LEGEND]

PLH-1.6KAKH.UK PLH-2KAKH.UK PLH-2.5KAKH.UK PLH-1.6KAK.UK PLH-2KAK.UK PLH-2.5KAK.UK

Indoor unit

Indoor heat exchanger

Refrigerant pipe (option)

15.88

mm( 5/8")

(with heat insulator)

Flexible tube

Ball valve

Strainer

4-way valve

Oil separator

Service port

High pressure control switch

Outdoor unit

Outdoor heat exchanger

Outdoor coil thermistor

(RT)

Capillary tube

Restrictor valve

Strainer

Bypass valve

Compressor

Accumulator

Ball valve (with service port)

Refrigerant pipe (option)

9.52mm( 3/8") (with heat insulator)

Capillary tube

Restrictor valve

Distributor with strainer

Indoor coil thermistor TH2

Strainer

Flared connection

<R.V.coil> Heating ON Cooling OFF

PLH-1.6(O.D.3.2 ✕ I.D.1.6-R630) PLH-2(O.D.3.2 ✕ I.D.1.8-R630) PLH-2.5(O.D.3.2 ✕ I.D.1.8-R430)

Refrigerant flow in cooling Refrigerant flow in heating

PUH-1.6(O.D.3.2 ✕ I.D.1.8-R430) PUH-2(O.D.4.0 ✕ I.D.2.0-R430) PUH-2.5(O.D.4.0 ✕ I.D.2.4-R1550)

REFRIGERANT SYSTEM DIAGRAM

PLH-1.6KAK.UK PLH-1.6KAKH.UK / PUH-1.6VKA.TH PLH-2KAK.UK PLH-2KAKH.UK / PUH-2VKA.TH PLH-2.5KAK.UK PLH-2.5KAKH.UK / PUH-2.5VKA.TH

Unit : mm

Unit conditions at service

Error code

Actions to be taken for service (summary)

The inferior phenomenon is reoccurring.

Displayed

Not displayed

Judge what is wrong and take a corrective action according to “SELF-DIAGNOSIS ACTION TABLE” (8-3).

Identify the cause of the inferior phenomenon and take a corrective action according to “TROUBLESHOOTING BY INFERIOR PHENOMENA ” (8-4).

The inferior phenomenon is not reoccurring.

Logged

Not logged

1Consider the temporary defects such as the work of protection devices in the refrigerant circuit including compressor, poor connection of wiring, noise and etc. Re-check the symptom, and check the installation environment, refrigerant amount, weather when the inferior phenomenon occurred, and wiring related. 2Reset error code logs and restart the unit after finishing service. 3There is no abnormality in electrical components, controller boards, and remote controller.

1Recheck the abnormal symptom. 2Identify the cause of the inferior phenomenon and take

a corrective action according to “TROUBLESHOOTING BY INFERIOR PHENOMENA ” (8-4). 3Continue to operate unit for the time being if the cause is not ascertained. 4There is no abnormality in electrical components, controller boards, remote controller etc.

PAR-21MAA

ON/OFF

FILTER

CHECK

OPERATION

CLEAR

TEST

TEMP.

BACK DAY

MONITOR/SET

CLOCK

ON/OFF

ERROR CODE

1 Turn on the power. 2 Press the [CHECK] button twice. 3 Set address with [TEMP] button if system control is used. 4 Press the [ON/OFF] button to stop the self-check.

A CHECK button B Address C TEMP. button D IC : Indoor unit

OC: Outdoor unit E Check code

F Unit No. G Timer ON/OFF button

BBEED

1 Display the error code at the self-check result display screen. 2 The address for self-check will blink when the

G ON/OFF

button is pressed twice within three seconds.

– – – – : No trouble generated in the past. F F F F : No corresponding unit.

TROUBLESHOOTING

8-1. TROUBLESHOOTING

Present and past error codes are logged and displayed on the wired remote controller or controller board of outdoor unit. Actions to be taken for service,which depends on whether or not the the inferior phenomenon is reoccurring at service, are summarized in the table below. Check the contents below before investigating details.

8-2. MALFUNCTION-DIAGNOSIS METHOD BY REMOTE CONTROLLER

When a malfunction occurs to air conditioner, both indoor unit and outdoor unit will stop and operation lamp blinks to inform unusual stop.

■ Wired remote controller

If the unit cannot be operated properly after the above test run has been performed, refer to the following table to remove the cause.

• On wired remote controller

1Check code displayed in the LCD.

1 Check code

Symptom Remark

Wired remote controller

Intake sensor error

P2 Pipe (TH2) sensor error P4 Drain sensor error P5 PA

Drain pump error

Forced compressor stop P6 Freezing/ Overheating safeguard operation P8 Pipe temperature error / Outdoor unit error E4, E5 Remote controller signal receiving error

– –

Fb Indoor unit control system error (memory error, etc.) E0, E3

E1, E2 Remote controller control board error

Remote controller transmission error

•

Wired remote controller

PLEASE WAIT

Symptom

For about 2 minutes following power-on

• For about 2 minutes following power-on,operation of the remote controller is not possible due to system start-up. (Correct operation)

Cause

•Connector for the outdoor unit’s protection

PLEASE WAIT → Error code

Display messages do not appear even when operation switch is turned ON (operation lamp does not light up).

After about 2 minutes has expired following power-on

device is not connected.

•Reverse or open phase wiring for the outdoor unit’s power terminal block

•Incorrect wiring between indoor and outdoor units

•Remote controller wire short

On the wireless remote controller with condition above, following phenomena takes place.

• No signals from the remote controller are accepted.

• Operation lamp is blinking.

• The buzzer makes a short piping sound.

Note: Operation is not possible for about 30 seconds after cancellation of function selection. (Correct operation)

For description of each LED (LED1, 2) provided on the indoor controller, refer to the following table.

LED1 (power for microcomputer) Indicates whether control power is supplied. Make sure that this LED is

always lit.

LED2 (power for wired remote controller)

Indicates whether power is supplied to the wired remote controller. This LED lights only in the case of the main indoor unit.

8-3. SELF-DIAGNOSIS ACTION TABLE

Error Code

Meaning of error code and detection method Abnormality of room temperature

thermistor (TH1)

1 The unit is in three-minute resume

prevention mode if short/open of thermistor is detected. Abnormal if the unit does not reset normally after three minutes. (The unit returns to normal operation, if it has normally reset.)

2 Constantly detected during cooling,

drying, and heating operation. Short: 90: or more Open: -40: or less

Abnormality of pipe temperature thermistor/Liquid (TH2)

1 The unit is in three-minute resume

prevention mode if short/open of thermistor is detected. Abnormal if the unit does not reset normally after three minutes. (The unit returns to normal operation, if it has normally reset.)

2 Constantly detected during cooling,

drying, and heating (except defrosting) operation. Short: 90: or more Open: -40: or less

Note: Refer to the manual of outdoor unit for the details of display

such as F, U, and other E.

Cause

1 Defective thermistor

characteristics.

2 Contact failure of connector

(CN20) on the indoor controller board. (Insert failure)

3 Breaking of wire or contact

failure of thermistor wiring.

4 Defective indoor controller

board.

1 Defective thermistor

characteristics.

2 Contact failure of connector

(CN21) on the indoor controller board. (Insert failure)

3 Breaking of wire or contact

failure of thermistor wiring.

4 Defective refrigerant circuit is

causing thermistor temperature of 90: or more or -40: or less.

5 Defective indoor controller board.

Countermeasure

1–3 Check resistance value of thermistor. 0: ······15.0k" 10: ····9.6k" 20: ····6.3k" 30: ····4.3k" 40: ····3.0k" If you put force on (draw or bend) the lead wire with measuring resistance value of thermistor breaking of wire or contact failure can be detected. 2 Check contact failure of connector (CN20) on

the indoor controller board. Refer to 8-7. Turn the power on again and check restart after inserting connector again.

4 Check room temperature display on remote

controller. Replace indoor controller board if there is abnormal difference with actual room temperature.

Turn the power off, and on again to operate after check.

1–3 Check resistance value of thermistor. For characteristics, refer to (P1) above. 2 Check contact failure of connector (CN21) on

the indoor controller board. Refer to 8-7. Turn the power on and check restart after inserting connector again.

4 Check pipe <liquid> temperature with remote

controller in test run mode. If pipe <liquid> temperature is exclusively low (in cooling mode) or high (in heating mode), refrigerant circuit may have defective.

5 Check pipe <liquid> temperature with remote

controller in test run mode. If there is exclusive difference with actual pipe <liquid> temperature, replace indoor controller board.

Abnormality of drain sensor (DS)

1 Suspensive abnormality, if short/open of

thermistor is detected for 30 seconds continuously. Turn off compressor and indoor fan.

2 Short/open is detected for 30 seconds

continuously during suspensive abnormality. (The unit returns to normal operation,

if it has normally reset.)

3 Detect the following condition.

• During cooling and drying operation.

• In case that pipe <liquid> temperature

- room temperature <-10deg

(Except defrosting)

• When pipe <liquid> temperature or room temperature is short/open temperature.

• During drain pump operation.

Malfunction of drain pump (DP)

1 Suspensive abnormality, if thermistor

of drain sensor is let heat itself and temperature rises slightly. Turn off compressor and indoor fan.

2 Drain pump is abnormal if the condition

above is detected during suspensive abnormality.

3 Constantly detected during drain pump

operation.

1 Defective thermistor

characteristics

2 Contact failure of connector

(CN31) on the indoor controller board. (Insert failure).

3 Breaking of wire or contact

failure of drain sensor wiring.

4 Defective indoor controller board.

1 Malfunction of drain pump 2 Defective drain

Clogged drain pump Clogged drain pipe

3 Attached drop of water at the

drain sensor

• Drops of drain trickles from lead wire.

• Clogged filter is causing wave of drain.

4 Defective indoor controller board.

Turn the power off, and on again to operate after check.

1–3 Check resistance value of thermistor. 0: ······6.0k" 10: ····3.9k" 20: ····2.6k" 30: ····1.8k" 40: ····1.3k" 2 Check contact failure of connector (CN31) on

the indoor controller board. Refer to 8-7. Turn the power on again and check restart after inserting connector again.

4 Replace indoor controller board if drain

pump operates with the line of drain sensor connector CN31-1 and 2 is short-circuited, and abnormality reappears.

Turn the power off, and on again to operate after check.

1 Check if drain-up machine works. 2 Check drain function. 3 Check the setting of lead wire of drain sensor

and check clogs of the filter.

4 Replace indoor controller board if drain

pump operates with the line of drain sensor connector CN31-1 and 2 is short-circuited and abnormality reappears. Refer to 8-7.

Turn the power off, and on again to operate after check.

Error Code

Meaning of error code and detection method Freezing/overheating protection is

working

1 Freezing protection (Cooling mode)

The unit is in six-minute resume prevention

mode if pipe temperature stays under

-15: for three minutes, three minutes after the compressor started. Abnormal if it stays under -15: for three minutes again within 16 minutes after six-minute resume prevention mode.

If pipe temperature is 1: or below when 16 minutes has passed after compressor starts operating, unit will start operating in frost prevention mode which stops compressor operation. After that, when pipe temperature stays 10: or more for 3 minutes, frost prevention mode will be released and compressor will restart its operation.

2 Overheating protection (Heating mode)

The units is in six-minute resume

prevention mode if pipe temperature is detected as over 70: after the compressor started. Abnormal if the temperature of over 70: is detected again within 10 minutes after six-minute resume prevention mode.

(Cooling or drying mode)

1 Clogged filter (reduced airflow) 2 Short cycle of air path 3 Low-load (low temperature)

4 Defective indoor fan motor

• Fan motor is defective.

• Indoor controller board is

5 Defective outdoor fan control 6 Overcharge of refrigerant 7 Defective refrigerant circuit

(Heating mode)

1 Clogged filter (reduced airflow) 2 Short cycle of air path 3 Over-load (high temperature)

4 Defective indoor fan motor

• Fan motor is defective.

• Indoor controller board is

5 Defective outdoor fan control 6 Overcharge of refrigerant 7 Defective refrigerant circuit

8 Bypass circuit of outdoor unit

Cause

operation beyond the tolerance range

defective.

(clogs)

operation beyond the tolerance range

defective.

(clogs) is defective.

Countermeasure

(Cooling or drying mode)

1 Check clogs of the filter. 2 Remove shields.

4 Measure the resistance of fan motor's winding.

Measure the output voltage of fan's connector (FAN) on the indoor controller board. WThe indoor controller board should be

normal when voltage of AC 220~240V is detected while fan motor is connected. Refer to 8-7.

5 Check outdoor fan motor. 67 Check operating condition of refrigerant

circuit.

(Heating mode)

1 Check clogs of the filter. 2 Remove shields.

4 Measure the resistance of fan motor's

winding. Measure the output voltage of fan's connector (FAN) on the indoor controller board. WThe indoor controller board should be

normal when voltage of AC 220~240V is detected while fan motor is connected. Refer to 8-7.

5 Check outdoor fan motor. 6~8Check operating condition of refrigerant

circuit.

Abnormality of pipe temperature

<Cooling mode> Detected as abnormal when the pipe temperature is not in the cooling range 3 minutes later of compressor start and 6 minutes later of the liquid pipe is out of cooling range. Note 1) It takes at least 9 min. to detect. Note 2) Abnormality P8 is not detected in

drying mode. Cooling range : -5 deg ] (TH2-TH1) TH2: Liquid pipe temperature TH1: Intake temperature

<Heating mode> When 10 seconds have passed after the compressor starts operation and the hot adjustment mode has finished, the unit is detected as abnormal when condenser/evaporator pipe temperature is not in heating range within 20 minutes.

Note 3) It takes at least 27 minutes to

detect abnormality.

Note 4) It excludes the period of defrosting

(Detection restarts when defrosting mode is over)

Heating range : 5 deg [ (TH2-TH1)

Abnormality in outdoor unit

1 Slight temperature difference

between indoor room temperature and pipe temperature thermistor

• Shortage of refrigerant

• Disconnected holder of pipe thermistor

• Defective refrigerant circuit

2 Converse connection of

extension pipe (on plural units connection)

3 Converse wiring of indoor/

outdoor unit connecting wire (on plural units connection)

4 Defective detection of indoor

room temperature and pipe temperature thermistor

5 Stop valve is not opened

completely.

1 Wrong wiring of indoor/outdoor

connecting wire

2 Reversed phase 3 Protection device is working 4 Damaged outdoor coil thermis-

tor

1~4 Check pipe temperature with room

temperature display on remote controller.

23Check converse connection of extension

pipe or converse wiring of indoor/outdoor unit connecting wire.

1 Check the indoor/outdoor connecting wire. 2 Change the connection of electric wiring. 3 Check the protection device. 4 Measure the resistance of the outdoor coil

thermistor. If the resistance is normal, replace the outdoor controller board.

Error Code

Meaning of error code and detection method

Remote controller transmission error(E0)/signal receiving error(E4)

1 Abnormal if main or sub remote con-

troller can not receive normally any transmission from indoor unit of refrigerant address “0” for three minutes. (Error code : E0)

2 Abnormal if sub remote controller could

not receive for any signal for two minutes. (Error code: E0)

1 Abnormal if indoor controller board can

not receive normally any data from remote controller board or from other indoor controller board for three minutes. (Error code: E4)

2 Indoor controller board cannot receive

any signal from remote controller for two minutes. (Error code: E4)

Remote controller transmission error(E3)/signal receiving error(E5)

1 Abnormal if remote controller could not

find blank of transmission path for six seconds and could not transmit.

(Error code: E3)

2 Remote controller receives transmitted

data at the same time, compares the data, and when detecting it, judges different data to be abnormal 30 continuous times. (Error code: E3)

1 Abnormal if indoor controller board could

not find blank of transmission path.

(Error code: E5)

2 Indoor controller board receives trans-

mitted data at the same time, compares the data,and when detecting it, judges different data to be abnormal 30 continuous times. (Error code: E5)

1 Contact failure at transmission 2 All remote controllers are set

3 Mis-wiring of remote controller. 4 Defective transmitting receiving

5 Defective transmitting receiving

6 Noise has entered into the

1 Two remote controller are set

2 Remote controller is connected 3 Repetition of refrigerant 4 Defective transmitting receiving 5 Defective transmitting receiving

6 Noise has entered into trans-

Cause

wire of remote controller as “sub” remote controller. In

this case, E0 is displayed on remote controller, and E4 is displayed at LED (LED1, LED2) on the outdoor controller circuit board.

circuit of remote controller circuit of indoor controller board

of refrigerant address “0”. transmission wire of remote

controller.

as “main.”

(In case of 2 remote con-

trollers) with two indoor units or more. address. circuit of remote controller. circuit of indoor controller

board. mission wire of remote con-

troller.

Countermeasure

1 Check disconnection or looseness of indoor

unit or transmission wire of remote controller.

2 Set one of the remote controllers “main”.

If there is no problem with the action above.

3 Check wiring of remote controller.

• Total wiring length: max.500m (Do not use cable x 3 or more)

• The number of connecting indoor units: max.16units

• The number of connecting remote controller: max.2units

When it is not the above-mentioned problem of

1~3 4 Diagnose remote controllers.

a) When “RC OK” is displayed,

Remote controllers have no problem. Put the power off, and on again to check. If abnormality generates again, replace indoor controller board.

b) When “RC NG” is displayed,

Replace remote controller. c) When “RC E3” is displayed, d) When “ERC 00-06” is displayed, [ c),d)→Noise may be causing abnormality. ]

∗ If the unit is not normal after replacing

indoor controller board in group control, indoor controller board of address “0” may be abnormal.

1 Set a remote controller to main, and the

other to sub.

2 Remote controller is connected with only one

indoor unit.

3 The address changes to a separate setting. 4~6 Diagnose remote controller.

a) When “RC OK”is displayed, remote con-

trollers have no problem.

Put the power off,and on again to check. When becoming abnormal again, replace

indoor controller board. b)When “RC NG”is displayed, replace

remote controller. c)When “RC E3”or “ERC 00-66”is displayed,

noise may be causing abnormality.

Error Code

PA (2502) (2500)

Meaning of error code and detection method

Abnormality of indoor controller board

Abnormal if data cannot be normally read from the nonvolatile memory of the indoor controller board.

Abnormality of remote controller control board

1 Abnormal if data cannot be normally

read from the nonvolatile memory of the remote controller control board.

(Error code: E1)

2 Abnormal if the clock function of remote

controller cannot be normally operated.

(Error code: E2)

Forced compressor stop (due to water leakage abnormality)

1 When the intake temperature subtracted

with liquid pipe temperature is less than

-10:, drain sensor is detected whether it is soaked in the water or not at the interval of 90 seconds. (Drain pump will start operating

when the drain sensor is detected to be

soaked in the water.)

2 The unit has a water leakage abnormality

when the following conditions, a and b, are satisfied while the above-mentioned detection is performed. a) The drain sensor is detected to be

soaked in the water 10 times in a row.

b) The intake temperature subtracted with

liquid pipe temperature is detected to be less than -10: for a total of 30 minutes. (When the drain sensor is detected to

be NOT soaked in the water, the detection record of a and b will be cleared.)

3 The drain sensor detection is performed

in operations other than cooling. (When the unit stops operating, during heating or fan operation, when the unit stops because of some abnormality)

*Once the water leakage abnormality is

detected, abnormality state will not be released until the main power is reset.

1 Defective indoor controller

1 Defective remote controller. 1 Replace remote controller.

1 Drain pump trouble 2 Drain defective

3 Open circuit of drain sensor

4 Contact failure of drain sensor

5 Dew condensation on drain

6 Extension piping connection

7 Mis-wiring of indoor/ outdoor

8 Room temperature thermistor /

Cause

board.

· Drain pump clogging

· Drain pipe clogging

side heater

connector

sensor

· Drain water descends along lead wire.

· Drain water waving due to filter clogging.

difference at twin, triple, quadruple system.

connecting at twin, triple, quadruple system.

liquid pipe temperature thermistor detection is defective.

Countermeasure

1 Replace indoor controller board.

Check the drain pump. Performance Please confirm whether water can be drained.

Confirm the resistance of the drain sensor side

heater.

Check the connector contact failure.

1 Check the drain sensor leadwire mounted. 2 Check the filter clogging

Check the piping connection.

Check the indoor/ outdoor connecting wires.

Check the room temperature display of remote controller. Check the indoor liquid pipe temperature dis-

play of outdoor controller board.

8-4. TROUBLESHOOTING BY INFERIOR PHENOMENA

Phenomena

(1)LED2 on indoor controller board

is off.

• When LED1 on indoor controller board is also off.

1 Power supply of 220~240V AC is not supplied to

indoor unit.

2 Defective indoor controller board.

3 Defective indoor power board.

Cause

Countermeasure

1 Check the voltage of indoor power supply

terminal block (L,N).

• When AC220~240V is not detected. Check the power supply wiring.

• When AC220~240V is detected.

-Check 2 (below).

2 Check voltage output from CNDK on

indoor controller board.

• When AC220~240V is not detected. Check the fuse on indoor controller board. Check the wiring connection between indoor power supply terminal block and CND on indoor controller board.

• When AC220~240V is detected.

-Check 3 (below).

3 Check voltage output from CN2S on

indoor power board.

• When no voltage output. Check the wiring connection between CNDK on indoor controller board and CNSK on indoor power board. If no problem are found,indoor power board is defective.

• When DC12.5~13.7V is detected. Check the wiring connection between CN2S on indoor power board and CN2D on indoor power board. If no problem are found,indoor controller board is defective.

(2)LED2 on indoor controller board

is blinking.

• When LED1 on indoor controller board is lit.

1 Mis-setting of main/sub for indoor unit

(There is no unit corresponding to main unit.)

• When LED1 on indoor controller board is also blinking. Connection failure of indoor/outdoor unit connecting wire

• When LED1 is lit.

1 Mis-wiring of remote controller wires

When 2 indoor units are wired in one refrigerant

system, each indoor unit sets main unit. (SW5-3)

2 Short-cut of indoor/outdoor unit connecting wire.

3 Short-cut of remote controller wires 4 Defective remote controller

1 Reconfirm the setting of main/sub for

indoor unit

Set the main unit. Set main/sub using SW5-3 on indoor controller board.

Check indoor/outdoor unit connecting wire for connection failure.

1 Check the connection of remote con-

troller wires in case of twin triple indoor unit system. When 2 or more indoor units are wired in one refrigerant system, connect remote controller wires to one of those units.

2 Remove indoor/outdoor connecting wires

and check LED2 on indoor controller board.

• When LED2 is blinking, check the shortcut of indoor/outdoor connecting wires.

• When LED2 is lit, connect indoor/outdoor connecting wires again, and; if LED2 is blinking, outdoor unit’s controller board is defective; if LED2 is lit, connection failure of indoor/outdoor terminal block etc. has returned to normal.

34 Remove remote controller wires and

check LED2 on indoor controller board.

• When LED2 is blinking, check the short-cut of remote controller wires.

• When LED2 is lit, connect remote controller wires again and:

if LED2 is blinking, remote controller is defective; if LED2 is lit, connection failure of remote controller terminal block etc. has returned to normal.

Phenomena

After completing installation and the wiring and piping of the indoor and outdoor units, check for refrigerant leakage, looseness in the power supply or control wiring, wrong polarity, and no disconnection of one phase in the supply. Use a 500-volt megohmmeter to check that the resistance between the power supply terminals and ground is at least 1.0M".

Do not carry out this test on the control wiring (low voltage circuit) terminals.

Warning: Do not use the air conditioner if the insulation resistance is less than 1.0M".

▲▲▲

ûC

SIMPLE

PAR-21MAA

ON/OFF

FILTER

CHECK

OPERATION

CLEAR

TEST

TEMP.

BACK DAY

MONITOR/SET

CLOCK

ON/OFF

TEST RUN COOL, HEAT

A ON/OFF button B Test run display C Indoor temperature liquid line

temperature display

D ON/OFF lamp E Power display

F Error code display

Test run remaining time display

G Set temperature button H Mode selection button I Fan speed button M TEST button

1 Turn on the power at least 12 hours before the test run. 2 Press the [TEST] button twice. ➜ "TEST RUN" liquid crystal display 3 Press the [Mode selection] button. Make sure that wind is blown out. 4 Press the [Mode selection] button and switch to the cooling (or heating) mode.

➜ Make sure that cold (or warm) wind is blown out.

5 Press the [Fan speed] button. ➜ Make sure that the wind speed is switched. 6 Check operation of the outdoor unit fan. 7 Release test run by pressing the [ON/OFF] button. ➜ Stop 8 Register a telephone number.

The telephone number of the repair shop, sales office, etc., to contact if an error occurs can be registered in the remote controller. The telephone number will be displayed when an error occurs. For registration procedures, refer to the operation manual for the indoor unit.

[Emergency operation procedure]

3.Before you activate emergency operation, check the following points: (1) Emergency operation cannot be activated when:

• the outdoor unit malfunctions. • the indoor fan malfunctions.

(3)Upward/downward vane

performance failure

1 The vane is not downward during defrosting and

heat preparation and when the thermostat is OFF in HEAT mode. (Working of COOL protection function)

Cause

2 Vane motor does not rotate.

• Defective vane motor

• Breaking of wire or connection failure of connector

• Up/down vane setting is “No vanes”.

3 Upward/downward vane does not work.

• The vane is set to fixed position.

(4)Receiver for wireless remote

controller

1 Weak batteries of wireless remote controller. 2 Contact failure of connector (CNB) on wireless

remote controller board.

(Insert failure)

3 Contact failure of connector (CN90) on indoor con-

troller board.(Insert failure)

4 Contact failure of connector between wireless

remote controller board and indoor controller board.

8-5. TEST RUN AND EMERGENCY OPERATION

8-5-1. Before test run

Countermeasure

1 Normal operation (The vane is set to hor-

izontal regardless of remote control.)

2 Check 2 (left).

• Check the vane motor. (Refer to “How to check the parts”.)

• Check for breaking of wire or connection failure of connector.

• Check “Up/down vane setting”. (Unit function selection by remote controller).

3 Normal operation (Each connector on

vane motor side is disconnected.)

1 Replace batteries of wireless remote con-

troller.

2~4

Check contact failure of each connector. If no problems are found of connector, replace indoor controller board. When the same trouble occurs even if indoor controller board is replaced, replace wireless remote controller board.

8-5-2. Test run (Using wired remote controller)

8-5-3. When wired remote controller or indoor unit micro computer troubles

8-6. HOW TO CHECK THE PARTS PLH-1.6KAKH.UK PLH-2KAKH.UK PLH-2.5KAKH.UK PLH-1.6KAK.UK PLH-2KAK.UK PLH-2.5KAK.UK

Parts name Check points

Room temperature thermistor

(TH1)

Indoor coil thermistor

(TH2)

Disconnect the connector, then measure the resistance using a tester. (Surrounding temperature 10°C~30°C)

Normal

4.3k'~9.6k'

Abnormal

Open or short

(Refer to the thermistor)

Fan motor

Relay connector

Protector

Vane motor

Drain-up mechanism

Drain sensor

Red

White

Black

1 2

Measure the resistance between the terminals using a tester.

Motor terminal

1 2 3

Relay connector

Red-Black

White-Black

Normal

PLH-KAK(H)

1.6, 2, 2.5

136.2'

197.5'

Measure the resistance between the terminals using a tester. (Surrounding temperature 20°C~30°C)

Normal

Approx.14k'

Abnormal

Open or short

Measure the resistance between the terminals using a tester.(Surrounding temperature : 20°C~30°C)

Normal

327'

Abnormal

Open or short

Measure the resistance between the terminals using a tester. Measure the resistance after 3 minutes have passed since the power supply was intercepted.

1 2 3

(Surrounding temperature 0:~60:)

Normal

0.6k'~6.0k'

Abnormal

Open or short

Abnormal

Open or short

(Refer to the thermistor)

-20 0 20406080

< Thermistor for drain sensor >

Temperature (:)

Resistance (K")

Thermistor for lower temperature

Room temperature thermistor(TH1) Pipe temperature thermistor/liquid(TH2)

Thermistor R0=15k' ±3% Fixed number of B=3480 ± 2%

Rt=15exp { 3480( ) }

273+t

273

0: 15k' 10: 9.6k' 20: 6.3k' 25: 5.4k' 30: 4.3k' 40: 3.0k'

Thermistor for drain sensor

< Thermistor for lower temperature >

Resistance (K")

-20 -10 0 10 20 30 40 50 Temperature (:)

Thermistor R0=6.0k' ±5% Fixed number of B=3390 ±2%

Rt= 6 exp { 3390( ) }

0: 6.0k' 10: 3.9k' 20: 2.6k' 25: 2.2k' 30: 1.8k' 40: 1.3k' 60: 0.6k'

273+t

273

8-7.TEST POINT DIAGRAM 8-7-1. Power board PLH-1.6KAKH.UK PLH-2KAKH.UK PLH-2.5KAKH.UK PLH-1.6KAK.UK PLH-2KAK.UK PLH-2.5KAK.UK

CN2S Connect to the indoor controller board (CN2D) Between 1 to 3 12.6-13.7V DC (Pin1 (+))

CNSK Connect to the indoor controller board (CNDK) Between 1 to 3 220-240V AC

8-7-2. Indoor controller board PLH-1.6KAKH.UK PLH-2KAKH.UK PLH-2.5KAKH.UK PLH-1.6KAK.UK PLH-2KAK.UK PLH-2.5KAK.UK

CNDK Connect to the indoor power board (CNSK) (220~240V AC)

SW6 Emergency operation

FUSE (6.3 A 250 V)

CND Power supply input (220~240V AC)

CNP Drain-pump output (DP) (220~240V AC)

CNC Dew prevention heater (H2)

CNV Vane motor output (MV) (220~240V AC)

CN2D Connect to the indoor power board (CN2S) (12.5~13.7V DC)

LED1 Power supply (I.B)

LED2 Power supply (R.B)

CN22 Connect to the terminal block(TB5) (Remote controller connecting wire) (10.4~14.6V DC)

CN30 Transmission (indoor/outdoor)

CN23 Limited switch input (LS)

CN20 Room temperature thermistor (TH1)

CN21 Pipe temperature thermistor/Liquid (TH2)

CN31 Drain sensor (DS)

CN90 Connect to the wireless remote controller board (CNB)

CN6V Vane motor output (MV)

CN41 Connector (HA terminal-A)

CN105/CN92 (RED)

CN51 Centrally control

SWE Emergency operation

FAN Fan motor output

Jumper wire J41, J42 Pair number setting with wireless remote controller

SW2 Capacity setting

CN32 Remote switch

CN2L Connector (LOSSNAY)

SW5 System setting

SW1 Model setting

SW1

Setting by the dip switch and jumper wire

Functions

Jumper wire

Model settings

SW5

System settings

Capacity settings

Pair number setting with wireless remote controller

Remarks

SW2

J41 J42

0 1 2

3 ~ 9

Wireless remote controller setting

Control PCB setting

J41 J42

<Settings at time of factory shipment> Wireless remote controller: 0 Control PCB: (for both J41 and J42) Four pair number settings are supported. The pair number settings of the wireless remote controller and indoor control PCB (J41/J42) are given in the table on the left. (' ' in the table indicates the jumper line is disconnected.)

(Marks in the table below) Jumper wire ( : Short : Open)

SW5-3 Main/Sub setting OFF : Main ON : Sub SW5-4 Rotaion operation setting OFF : Not avairable ON : avairable

MODELS

SW1

Manufacture/Service

PLH-KAK PLH-KAKH

MODELS

SW5

Manufacture/Service

PLH-KAK PLH-KAKH

MODELS

SW2

Manufacture/Service

PLH-1.6KAK PLH-1.6KAKH

PLH-2KAK PLH-2KAKH

PLH-2.5KAK PLH-2.5KAKH

ON OFF

1 2 3 4 5

12345678

ON OFF

1 2 3 4 5

ON OFF

1 2 3 4 5

ON OFF

1 2 3 4 5

ON OFF

8-8. FUNCTIONS OF DIP SWITCH AND JUMPER WIRE

Each function is controlled by the dip switch and the jumper wire on control p.c. board.

8-9. OUTDOOR UNIT SERVICE FUNCTIONS (OUTDOOR CONTROLLER BOARD)

(1) Compulsory defrosting

1When all of the following conditions are satisfied, pressing SW2 starts the compulsory defrosting.

● During HEAT mode

● The compressor is ON.

● The outdoor coil temperature is being displayed by LED. (Outdoor controller board dip switch SW3-1 : OFF, SW3-2 :

ON)

● The outdoor coil thermistor reads 8°C or below.

2The operation state and the termination conditions of the compulsory defrosting are the same as those of the normal

defrosting. As an exception, the defrost interval after the defrosting completion is 50 minutes.

(2) Fixed fan-output

While the compressor is operating (except during defrosting) and the fan output step is indicated by LED, pressing SW2 fixes the fan output. The fixed fan-output can be released when any of the following conditions are satisfied.

1SW2 is pressed again. 2SW3 setting is changed. 3The compressor stops. 4Defrosting operation starts.

(3) Function of switches on the outdoor controller board

SW1: Clears the check code memory (push-button switch) SW2: Switches the output state indication and the check code display (push-button switch) SW3-1,2: Switches the output state indication items (dip switch)

(4) 100% fan output

Fan output is fixed to 100% by shorting the connector CN22. However, the fan stops during compressor OFF or defrosting. Open-circuit of CN22 restarts the normal fan control.

(5) Time shortening

Short circuit of the connector CN21 shortens the time as follows

1Fan control period: 30 seconds → 3 seconds 2Three-minutes time delay function : 3 minutes → 3 seconds 3Max. time of defrosting : 15 minutes → 15 seconds 4Defrost interval : 30 ~ 120 minutes → 3 ~ 12 seconds 5Compressor ON/OFF time for bypass valve ON/OFF : 30 minutes → 3 seconds 6Compressor ON time to start other functions : x minutes → x seconds 7Crankcase heater operation : 1 hour → 6 seconds

(6) Crankcase heater control

1With jumper wire J3

The crankcase heater is ON from when the power is turned ON until the compressor starts, and then turns ON one hour

after the compressor stops.

2Without jumper wire J3 The crankcase heater is ON from when the power is turned ON until the compressor starts, and repeats 1-hour ON and 1hour OFF, after the compressor stops.

Function Settings

No.

Mode

No.

Setting

Initial setting (Factory setting

)

- : Not available

4-Way cassette

Ceiling

concealed

Ceiling

suspended

Wall

mounted

Floor

standing

PLH-AAK(H)

PEH-EAK(H)

PCH-GAK(H)

PKH-GAKL(H)

PSH-GAK(H)

PEHD-EAK(H)

PKH-FAKL(H)

Filter sign 100Hr 1

2500Hr 07 2 No filter sign indicator

3 Air flow Quiet Standard 1 - - (

Fan speed

)

Standard

High ceiling1

08 2 - - -

High ceiling

High ceiling2

3--No.of air outlets 4 directions 1 - - - -

3 directions 09 2 - - - 2 directions

3----Optional high efficiency

Not supported

---

filter Supported

---

Vane setting

No vanes (Vane No.3 setting:PLH-AAK(H)only

)

1---

Vane No.1 setting

11 2 - - -

Vane No.2 setting

3--Energy saving air Disabled

---

flow (Heating mode

)

Enabled

---

Optional humidifier Not supported

--- -

(

PLH-AAK(H) only

)

Supported

--- -

Vane differential setting No.1 setting (TH2: 24-28:

)

1- in heating mode No.2 setting (Standard, TH2:28-32:

)

14 2 - -

(

cold wind prevention

)

No.3 setting (TH2: 32-38:

)

3- Swing Not available

Available

Set temperature in heating Available

1 mode (4 deg up

)

Not available

2 Fan speed when the Extra low 1 heating thermostat is OFF

Stop

25 2

Set fan speed

3 Quiet operation mode Disabled (Standard

)

--- -

of PLH-AAK(H)(Fan speed)Enabled (Quiet operation mode

)

--- -

Fan speed when the

Set fan speed

1 cooling thermostat is OFF Stop

2 Detection of abnormality of Available

1 the pipe temperature (P8)Not available

}

PLH-AAK(H)

PLH-KAK(H)

Function

Settings

Mode No.

Setting No.

Initial setting

(when sent from the factory)

Remarks

Power failure automatic recovery Indoor temperature detecting

LOSSNAY connectivity

Power supply voltage Frost prevention temperature Humidifier control

Rotation

OFF ON Indoor unit's (Main) internal sensor

Remote controller's internal sensor w1 Not supported Supported (indoor unit not equipped with outdoor air intake) Supported (indoor unit equipped with outdoor air intake) 240V 220V,230V 1: (Normal)

-3: When the compressor operates, the humidifier also operates. When the fan operates, the humidifier also operates. 24h cycle 168h cycle Back up function

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

04 15 16

The setting is applied to all the units in the same refrigerant system.

FUNCTION SETTING

9-1. UNIT FUNCTION SETTING BY THE REMOTE CONTROLLER

Each function can be set according to necessity using the remote controller. The setting of function for each unit can only be done by the remote controller. Select function available from the table 1.

(1) Functions available when setting the unit number to 00 (Select 00 referring to 4 setting the indoor unit number.)

W1 The functions below are available only when the wired remote controller is used.The functions are not available for floor

standing models.

<Table 1> Function selections

(2) Functions available when setting the unit number to 01-02 or AL (07 in case of wireless remote controller)

• When setting functions for an indoor unit in an independent system, set the unit number to 01 referring to 4 setting the indoor unit number.

• When setting functions for a simultaneous- Twin indoor unit system, set the unit number to 01 to 02 for each indoor

unit in case of selecting different functions for each unit referring to 4 setting the indoor unit number.

• When setting the same functions for an entire simultaneous Twin -indoor unit system, set refrigerant address to AL

(07 in case of wireless remote controller) referring to 4 setting the indoor unit number.

Rotation setting (Function setting mode No.20

)

Function setting

Features Indoor controller board

Mode No.

This system can correspond only by the pattern of two refrigerant group by 1 : 1 (indoor and outdoor unit combination) systems.

Setting No.

SW5-3 setting SW5-4 setting

20 01

(

24hours cycle

)

(

168hours cycle

)

OFF : Main ON : Sub

(

Back up

function

)

When abnormality occurs while operating

changes as a back up unit

and operating

continues.

Each system operates alternately for 24hours.

Each system operates alternately for 168hours.

Example of unit's operation

(Setting No. = 01 or 02)

Main Unit is abnormal

Operation starts Main➝Sub Sub➝Main

(Setting No. = 02

• • •

168hours cycle)

Outdoor unit

(Setting No. = 03)

Main Unit is abnormal

Indoor

Operation starts Main➝Sub

unit

Remote Controller

Main➝Sub

OFF

Main

OFF

• Selecting functions using the wired remote controller

First, try to familiarize yourself with the flow of the function selection procedure. In this section, an example of setting the room temperature detection position is given. For actual operations, refer to steps 1 to 0 .

Setting number

Address Unit number

Mode number

Modes 01 to 14 can be activated by pressing buttons

and

simultaneously, and modes 15 to 28 by pressing buttons

and J.

indoor unit

Sub indoor unit

24h 24h

Main

Main indoor unit

Sub indoor unit

Sub

Selecting functions using the wired remote controller

The above procedure must be carried out only if changes are necessary.

1 : 1 system Simultaneous twin system Rotation system

Indoor unit address = 00 unit No. = 01

Main indoor unit address = 00 unit No. = 01

Sub indoor unit address = 01 unit No. = 02

Outdoor unit

Indoor unit

Remote controller

Outdoor unit Outdoor unit Outdoor unit

Main indoor unit

Sub indoor unit

Remote controller

Main indoor unit address = 00 unit No. = 01

Sub indoor unit address = 01 unit No. = 01

Main indoor unit

Sub indoor unit

Remote controller

Check the function selection setting.

Switch to function setting mode.

(Press

and B at the same time

For modes 15 and higher, press

with the remote controller stopped.)

Specify address

(Use

Specify unit No.

and D.)

Refer to address unit No. to the figure below

and B at the same time.

Enter the setting.

(Press

Select mode No. 02

(Specified indoor unit: BLOW operation)

(room temperature detection position).

Select setting No. 03 (remote controller fixed).

(Use

and G.)

Enter the setting.

(Press

Example: Selecting room temperature detection position

Finished

YES

Ending function display

(Press

and B at the same time.)

YES

Change refrigerant address unit No.

[Operating Procedure]

1 Check the setting items provided by function selection.

If settings for a mode are changed by function selection, the functions of that mode will be changed accordingly. Check all the current settings according to steps 2 to 7 , fill in the "Check" column in Table 1, and then change them as necessary. For factory settings, refer to the indoor unit's installation manual.

2 Switch off the remote controller.

A Hold down the

buttons and then the remote controller's display content will change as shown below.

* If the unit stops after

Check to see if there are any sources of noise or interference near the transmission path. Note

If you have made operational mistakes during this procedure, exit function selection (see step 0 ), and then restart from step 2.

4 Set the indoor unit number.

D Press the

area.

FILTER

simultaneously for at least two seconds.

Address display section

FUNCTION

flashed for two seconds or "88" flashes in the room temperature display area for two seconds, a transmission error may have occurred.

SELECTION

ON/OFF

button so that " - -" flashes in the unit number display

Unit number display section

FUNCTION SELECTION

B ( mode 15 or more) and

TEST

will start to flash,

3 Set the outdoor address.

C Press the [

address. The address changes from "00" to "15".

C Press the [

of the indoor unit for which you want to perform function selection. The unit number changes to "00", "01", "02","03",04" and "AL" each time a button is pressed.

CLOCK] buttons ( and ) to select the desired

CLOCK] buttons ( and ) to select the unit number

* To set modes 01 to 06 or 15 to 22 select unit number "00". * To set modes 07 to 14 or 23 to 28 carry out as follows:

• To set each indoor unit individually, select "01" to "04".

• To set all the indoor units collectively, select "AL".

5 Confirm the address and unit number.

E Press the

number. After a while, "- - " will start to flash in the mode number display area.

Mode number display section

* "88" will flash in the room temperature display area if the selected address

does not exist in the system. Furthermore, if address display area also flashes, there are no units that correspond to the selected unit number. In this case, the address and unit number may be incorrect, so repeat steps 2 and 3 to set the correct ones.

6 Select the mode number.

F Press the [

number. (Only the selectable mode numbers can be selected.)

7 Select the setting content for the selected mode.

G Press the

flash, so check the currently set content.

8 Register the settings you have made in steps 3 to 7 .

E Press the

to flash and registration starts.

MODE

button to confirm the address and unit

MODE

"F"

appears and flashes in the unit number display area and the

TEMP] buttons ( and ) to set the desired mode

button. The currently selected setting number will

Setting number display section

button. The mode number and setting number will start

Setting number 1 = Indoor unit operating average

E When the address and unit number are confirmed by pressing the

button, the corresponding indoor unit will start fan operation. This

MODE

helps you find the location of the indoor unit for which you want to perform function selection. However, if "00" or "AL" is selected as the unit number, all the indoor units corresponding to the specified address will start fan operation.

Example) When the address is set to 01 and the unit number is 02.

00 address Outdoor unit

Indoor unit

Designate operation

* When grouping different systems, if an indoor unit other than the

one to which the address has been set performs fan operation, there may be another address that is the same as the specified one. In this case, check the DIP switch of the outdoor unit to see whether such a address exists.

Mode number display section

F Press the [

number.

The mode number and setting number will stop flashing and remain lit, indicating the end of registration.

TEMP] buttons ( and ) to select the desired setting

Main Sub

Remote controller

Mode number 02 = Indoor temperature detection

Setting number 3 = Remote controller built-in sensor

Fan draft

* If " - - - " is displayed for both the mode number and setting number and "

Check to see if there are any sources of noise or interference near the transmission path. 9 If you wish to continue to select other functions, repeat steps 3 to 8 . 0 Complete function selection.

A Hold down the

buttons simultaneously for at least

After a while, the function selection screen will disappear and the air conditioner OFF screen will reappear.

Note If a function of an indoor unit is changed by function selection after installation is complete, make sure that a " " mark, etc., is given in the "Check" column of Table 1 to indicate the change.

FILTER TEST

( mode 15 or more) and

two seconds.

" flashes in the room temperature display area, a transmission error may have occurred.

* Do not operate the remote controller for at least 30 seconds after completing

function selection. (No operations will be accepted even if they are made.)

9-2. FUNCTION SELECTION OF REMOTE CONTROLLER

The setting of the following remote controller functions can be changed using the remote controller function selection mode. Change the setting when needed.

Item 1

1.Change Language ("CHANGE LANGUAGE")

2.Function limit ("FUNCTION SELECTION")

3.Mode selection ("MODE SELECTION")

4.Display change ("DISP MODE SETTING")

Item 3 (Setting content)

• Display in multiple languages is possible.

• Setting the range of operation limit (operation lock)

• Setting the use or non-use of "automatic" operation mode

• Setting the temperature adjustable range (maximum, minimum)

• Selecting main or sub remote controller *

When two remote controllers are connected to one group, one controller must be set to sub.

• Setting the use or non-use of clock function

• Setting the timer type

• Contact number display in case of error

• Setting the telephone number

• Setting the temperature unit (: or °F) to display

• Setting the use or non-use of the display of indoor (suction) air temperature

• Setting the use or non-use of the display of "Cooling" or "Heating" display during

operation with automatic mode

Item 2

Language setting to display

(1)

Operation function limit setting (operation lock) ("LOCKING FUNCTION")

(2)

Use of automatic mode setting ("SELECT AUTO MODE")

(3)

Temperature range limit setting ("LIMIT TEMP FUNCTION")

(1)

Remote controller main/sub setting ("CONTROLLER MAIN/SUB")

(2) Use of clock setting ("CLOCK") (3) Timer function setting ("WEEKLY TIMER") (4) Contact number setting for error situation ("CALL.")

(1) Temperature display :/°F setting ("TEMP MODE :/°F") (2)

Suction air temperature display setting ("ROOM TEMP DISP SELECT")

(3)

Automatic cooling/heating display setting ("AUTO MODE DISP C/H")

[Function selection flowchart] Refer to next page. [1] Stop the air conditioner to start remote controller function selection mode. [2] Select from item1. [3] Select from item2. [4] Make the setting. (Details are specified in item3) [5] Setting completed. [6] Change the display to the normal one. (End)

➔➔➔

➔➔

[Detailed setting] [4] -1. CHANGE LANGUAGE setting

The language that appears on the dot display can be selected.

• Press the [

MENU] button to change the language.

1 Japanese (JP), 2English (GB), 3 German (D), 4 Spanish (E), 5 Russian (RU), 6Italian (I), 7 Chinese (CH), 8 French (F)

[4] -2. Function limit (1) Operation function limit setting (operation lock)

• To switch the setting, press the [ ON/OFF] button. 1 no1: Operation lock setting is made on all buttons other than

the [

ON/OFF] button.

2 no2: Operation lock setting is made on all buttons. 3 OFF (Initial setting value) : Operation lock setting is not made

* To make the operation lock setting valid on the normal screen, it is

necessary to press buttons (Press and hold down the [FILTER] and [ ON/OFF] buttons at the same time for two seconds.) on the normal screen after the above setting is made..

(2) Use of automatic mode setting When the remote controller is connected to the unit that has automatic operation mode, the following settings can be made.

• To switch the setting, press the [ ON/OFF] button. 1 ON (Initial setting value) : The automatic mode is displayed when

the operation mode is selected.

2 OFF : The automatic mode is not display

when the operation mode is selected.

[4] -3. Mode selection setting (1) Remote controller main/sub setting

• To switch the setting, press the [ ON/OFF] button.

1 Main : The controller will be the main controller. 2 Sub : The controller will be the sub controller.

(2) Use of clock setting

• To switch the setting, press the [ ON/OFF] button.

1 ON :The clock function can be used. 2 OFF:The clock function cannot be used.

(3) Timer function setting

• To switch the setting, press the [ ON/OFF] button (Choose one of the followings.).

1 WEEKLY TIMER (initial setting on MA deluxe):

The weekly timer can be used.

2 AUTO OFF TIMER: The auto off timer can be used.

SIMPLE TIMER :

The simple timer can be used.

TIMER MODE OFF: The timer mode cannot be used.

* When the use of clock setting is OFF, the "WEEKLY TIMER" cannot be

used.

(4) Contact number setting for error situation

• To switch the setting, press the [ ON/OFF] button.

1 CALL OFF:

The set contact numbers are not displayed in case of error.

2 CALL **** *** **** : The set contact numbers are displayed in case

of error.

(3) Temperature range limit setting After this setting is made, the temperature can be changed within the set range.

• To switch the setting, press the [ ON/OFF] button. 1 LIMIT TEMP COOL MODE :

The temperature range can be changed on cooling/dry mode.

2 LIMIT TEMP HEAT MODE :

The temperature range can be changed on heating mode.

3 LIMIT TEMP AUTO MODE :

The temperature range can be changed on automatic mode. 4 OFF (initial setting) : The temperature range limit is not active. *

When the setting, other than OFF, is made, the temperature range limit setting on cooling, heating and automatic mode is made at the same time. However the range cannot be limited when the set temperature range has not changed.

•

To increase or decrease the temperature, press the [ TEMP ( ) or ( )] button.

•

To switch the upper limit setting and the lower limit setting, press the

[ ]

button. The selected setting will flash and the temperature can be set.

• Settable range

Cooling/Dry mode : Lower limit: 19 : ~ 30: Upper limit: 30 : ~ 19: Heating mode : Lower limit: 17 : ~ 28: Upper limit: 28 : ~ 17: Automatic mode : Lower limit: 19 : ~ 28: Upper limit: 28 : ~ 19:

CALL_ : The contact number can be set when the display is as

shown on the left.

• Setting the contact numbers To set the contact numbers, follow the following procedures. Move the flashing cursor to set numbers. Press the [

TEMP. ( ) and

(

)] button to move the cursor to the right (left). Press the [ CLOCK

(

) and ( )] button to set the numbers.

[4] -4. Display change setting (1) Temperature display :/ F setting

• To switch the setting, press the [ ON/OFF] button.

1 : : The temperature unit : is used. 2 F: The temperature unit

°°

F is used.

(2) Suction air temperature display setting

• To switch the setting, press the [ ON/OFF] button.

1 ON : The suction air temperature is displayed. 2 OFF:The suction air temperature is not displayed.

(3) Automatic cooling/heating display setting

• To switch the setting, press the [ ON/OFF] button. 1 ON : One of "A utomatic cooling" and "A utomatic heating" is display ed

under the automatic mode is running.

2 OFF:Only "Automatic" is displayed under the automatic mode.

Hold down the E button and press the D button for 2 seconds.

Remote controller function selection mode

E Press the operation mode button. G Press the TIMER MENU button. D Press the TIMER ON/OFF button.

Item1 Item2

Dot display

Item3

Room air temperature is not displayed.

One of "Automatic cooling" and "Automatic heating" is displayed under the automatic mode is running. (Initial setting value)

Only "Automatic" is displayed under the automatic mode.

Normal display (Display when the air condition is not running)

Change Language

Function selection

Mode selection

Display mode setting

Operation lock setting is not used. (Initial setting value)

Operation lock setting is except On/Off buttons.

Operation lock setting is All buttons.

The automatic mode is displayed when the operation mode is selected. (Initial setting value)

The automatic mode is not displayed when the operation mode is selected.

The temperature range limit is not active. (Initial setting value)

The temperature range can be changed on cooling/dry mode.

The temperature range can be changed on heating mode.

The temperature range can be changed on automatic mode.

The remote controller will be the main controller. (Initial setting value)

The remote controller will be the sub controller.

The clock function can be used. (Initial setting value)

The clock function can not be used.

Weekly timer can be used. (Initial setting value)

Auto off timer can be used.

Simple timer can be used.

Timer mode can not be used.

The set contact numbers are not displayed in case of error. (Initial setting value)

The set contact numbers are displayed in case of error.

The temperature unit : is used. (Initial setting value)

The temperature unit °F is used.

Room air temperature is displayed. (Initial setting value)

Flowchart of Function Setting

Setting language (English)

PAR-21MAA

OFF

on1

on2

OFF

TEMP.

MONITOR/SET

BACK DAY

CLOCK

ON/OFF

OPERATION

ON/OFF

CHECK

CLEAR

FILTER

TEST

OFF

CALL-

°F

OFF

Indoor unit

Shutter plate

4-WAY AIR FLOW SYSTEM

10-1. PLACEMENT OF THE AIR OUTLETS

●For this grill, the airflow direction comes in 5 patterns. Also, by unit function setting by the remote controller, you can adjust the air flow and speed. Select the settings from the Tables according to the location in which you want to install the unit.

1) Decide on the pattern of the discharge direction.

pattern

Airflow direction

2) According to the number of air outlets and the height of the ceiling to install the unit, be sure to set the unit function setting by the remote controller.

No. of air outlets

4-directional 3-directional

4-direction 3-direction

Pattern 1 Pattern 4

Factory setting

Air flow

Silent

2.4m

2.7m

One air outlet fully closed

Standard High ceiling

2.7m 3.0m

3.0m 3.3m

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

shutter plate(PAC-SF38SP-E)

Note 2. The 2-direction airflow is unavailable.

10-2. 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.

SYSTEM CONTROL11

System Name System Diagram Features

Parts Required in Addition to Standard System

Components (Indoor/Outdoor Units, Remote Controller)

A.Remote control-

ler operation (Standard)

B.Remote control-

ler operation

Use of two controllers enables operation of the air conditioner both from a distance and nearby.

C.Group control

operation

Use of one remote controller to control multiple air conditioners with the same settings simultaneously.

Remote/local combined control operation

Allows start/stop of the air conditioner from a distance, and prohibits/permits start/ stop from remote controllers.

E.Operation by

external signal

Control and remote

display by external signal (extraction of monitor signal)

Enables you to display the operation state and control start/stop from a distance.

• There are two types of remote controllers: wired type and wireless type.

• Simultaneous twin indoor units are started or stopped simultaneously.

• Up to two remote controllers can be connected to one group.

• Simultaneous twin units are counted as each unit.

• Operation control by the latest command (last entered priority)

• Wired and wireless remote controllers can be combined as a pair.

• One group can consist of up to 16 indoor units, and they can be started sequentially by connecting the remote controller to them and assigning an address to each inter face.

• Simultaneous twin units are counted as one unit.

• All the units belonging to the same group are operated in the same mode, but thermostats can be turned ON/OFF individually for each indoor unit.

• Up to two remote controllers can be connected.

• All the air conditioners can be turned ON/OFF collectively from a distance.

• Operation can be switched between the remote operating panel and handheld controller.

• Operations (e.g., temperature adjustment, airflow, airflow direction) except for start/stop operations can be performed even if the remote controller is being operated.

• In the case of simultaneous twin units, connect the controller to one indoor unit only. If connected to two or more indoor units, an error (operation stop) may occur.

• Control by an external timer is possible by connecting it.

• Use of optional "remote ON/OFF adapter" enables remote control via relay. (Level signal)

Extraction of non-voltage contact output

• Use of optional "remote operation adapter" and "remote display panel" (Part to be provided at your site) provides non-voltage contact outputs of signals

(opera-tion, error) and operation/stop input function.

Extraction of DC12 V contact output

•

Use of optional "Multiple remote controller adapter" and "remote display panel" (Part to be provided at your site) provides DC12 V contact outputs of signals (operation, error) and operation/stop input function.

* One of the wired remote con-

trollers must be set as a sub remote controller.

Wired remote controller (additional) (PAR-21MAA)

Inter face MAC-397IF-E

Remote ON/OFF adapter (PAC-SE55RA-E) Relay box (Part to be provided at your site) Remote operating panel (Part to be provided at your site)

Remote ON/OFF adapter (PAC–SE55RA-E)

Remote operation adapter (PAC-SF40RM-E) Remote display panel (Part to be provided at your site)

Multiple remote controller adapter (PAC-SA88HA) Remote display panel (Part to be provided at your site)

Remote display panel (operation, error)

11-1. VARIETY OF SYSTEM CONTROL FUNCTIONS

Indoor unit

Remote Controller

Indoor unit

Remote Controller

Inter face Indoor

unit Outdoor unit

Remote Controller

Relay box

Indoor unit

Remote Controller

Remote operating panel

Outdoor unit

Adapter

Indoor unit

Remote Controller

Outdoor unit

Indoor unit

Sub

Main

Remote Controller

System Name System Diagram Features

Parts Required in Addition to Standard System

Components (Indoor/Outdoor Units, Remote Controller)

G. Timer operation

Enables control of start and stop.

* For control by

external timer, refer to Remote/ handheld combined control operation".

H.Interlock opera-

tion with periph-

eral equipment

Enables control of Mitsubishi Lossnay ventilator by remote controller.

I.Rotation

• Weekly timer: In addition to ON/OFF, up to eight temperature patterns can be set for each day of the week.

* Only one timer can be selected; the auto off, simple

and weekly timers cannot be combined.

• Simple timer: Start and stop operations can each be

performed once within 72 hours (can be set in 1-hour increments).

• Auto off timer:Operation is stopped when the preset

time elapses following the start of operation. The time can be set from 30 minutes to 4 hours in 30-minute increments.

* Only one timer can be selected; the simple and auto

off timers cannot be combined.

• Connecting a Lossnay ventilator and an indoor unit enables control of interlock/solo ventilation operation and airflow. (Only the microcomputer type Lossnay ventilator can be used.)

•

MA Remote controller (PAR-21MAA)

When abnormality occurs while operating, it changes into operating the back up unit, and operating is continued. (Unit function Mode No. 20 setting No.3 , Indoor controller board SW-5-4 ON) Main / Sub setting Main : Indoor controller board SW5-3 : OFF Sub : Indoor controller board SW5-3 : ON Each system operates alternately for 24 hours or 168 hours. (Unit function Mode No. 20 setting No.1: 24 hours/ No.2 : 168 hours, Indoor controller board SW 5-4 ON) Main / Sub setting Main : Indoor controller board SW5-3 : OFF Sub : Indoor controller board SW5-3 : ON

This system can correspond only by the pattern of two refrigerant group by 1 : 1 (indoor and outdoor unit combination) systems.

Lossnay ventilator

Remote Controller

Indoor unit

11-2. ONE REMOTE CONTROLLER (STANDARD) OPERATION

Slim Air Conditioners System

Remote controller connection circuit (Controller cable)

Outdoor unit OC

Indoor unit IC

Wired remote controller R

Indoor/Outdoor connection cable

Remote controller cable

IC-1

IC-2

IC-1

Standard 1:1 Simultaneous Twin Indoor controller board switch setting

SW5-3

OFF

Indoor unit IC

IC-1 (Main)

IC-2 (Sub)

OC IC

1 2

Power source wiring

1 2 3

1 2

(No polarity)

Outdoor unit Indoor unit Remote controller

Power source wiring

(Polarity)

1 2 3

Slim Air Conditioners System

Remote controller optical receiver section connection circuit

Outdoor unit OC

Indoor unit IC

Wireless remote controller receiver section R'

Indoor/Outdoor connection cable

IC-1

IC-2

IC-1

Standard 1:1 Simultaneous Twin

Wireless remote controller cable

Indoor controller board switch setting

SW5-3

OFF

Indoor unit IC

IC-1 (Main)

IC-2 (Sub)

CN90

Controller board

Indoor unit IC

CNB

Wireless remote controller

optical receiver section R’

Remote controller cable terminal block

(1) One Wired Remote Controller

(OC: Outdoor unit IC: Indoor unit R: Remote controller (for wireless type: optical receiver adapter)

(Reference)

1 If simultaneous twin, connect the remote controller to an indoor unit. All functions of the indoor unit can control even if

different models (different types) are mixed. Note that there may be some restrictions of the functions.

2 Electrical wiring diagram

• Power supply terminal block L, N

• Indoor/outdoor connection cable terminal block 1,2 (Polarity)

• Remote controller cable terminal block 1,2 (No polarity)

(2) Wireless remote controller

(Reference)

1 If simultaneous twin, connect the remote controller to an indoor unit. All functions of the indoor unit can control even if

different models (different types) are mixed. Note that there may be some restrictions of the functions.

2 Electrical wiring diagram

11-3. TWO-REMOTE CONTROLLER OPERATION

(1) Two Wired Remote Controllers

(R: Wired remote controller)

Slim Air Conditioner System

Standard 1:1 Simultaneous Twin

[Reference] 1 In the case of free component multi type systems consisting of simultaneous twin units, connect the remote controllers to each indoor unit.

All the functions of the connected indoor units can be controlled even if the system consists of different models. However, some function may be restricted.

2 In the case of free component multi type systems consisting of simultaneous twin units, the indoor units should be connected by crossover wiring 3 Set one of the remote controllers as the main controller (factory setting) and the other as the sub controller using the remote controller's function

selection.

(2) Two Wireless Remote Controllers

Slim Air Conditioner System

Standard 1:1 Simultaneous Twin

Remote controller connection circuit (Controller cable)

Outdoor unit OC

Indoor unit IC

Wired remote controller R

Outdoor unit OC

Indoor unit IC

Wired remote controller R

Remote

IC-1

IC-2

R-1

R-2

R-1 R-2

IC-1

IC-2

R-1

R-2

Remote controller receiver connection circuit

Outdoor unit OC

Indoor unit IC

Wireless remote controller receiver section R'

—

* Numbers given in ( ) apply when power is supplied to the indoor and outdoor units separately. [Reference] 1 In the case of free component multi type systems consisting of simultaneous twin units, connect two wireless remote controller receivers

(one each) to any two of the indoor units. All the functions of the connected indoor units can be controlled even if the system consists of differen models. However, some functions may be restricted.

2 In the case of free component multi type systems consisting of simultaneous twin units, the indoor units should be connected by crossover wiring

In the case of "standard 1:1" connection, it is not possible to connect two remote controller receivers to the indoor units. However, with system

consisting of simultaneous twin units, it is possible to connect a remote controller receiver to two indoor units. In this case, all the pair number will be "0" (factory setting, no change necessary), and all the units will be turned ON/OFF simultaneously.

4 When using two or more wireless remote controllers, the display contents on the remote controllers may differ from the actual settings, since the

operation made last by any of the remote controllers will be effective.

(3) One Wired and One Wireless Remote Controller

(R: Wired remote controller, R': Wireless remote controller receiver)

Slim Air Conditioner System

Standard 1:1 Simultaneous Twin

Remote controller receiver connection circuit

Outdoor unit OC

Indoor unit IC

•Wired remote controller R

•Receiver R'

IC-1

IC-2

(R': Wireless remote controller receiver)

Remote controller cable

Indoor controller board switch setting

SW5-3

OFF

Indoor unit IC

IC-1 (Main)

IC-2 (Sub)

Indoor controller board switch setting

SW5-3

OFF

Indoor unit IC

IC-1 (Main)

IC-2 (Sub)

Indoor controller board switch setting

SW5-3

OFF

Indoor unit IC

IC-1 (Main)

IC-2 (Sub)

controller cable

R-1

R-2

Indoor/outdoor connection cable

Receiver connection cable

IC-1

9 9

R'-1

IC-2

R'-2

Indoor/outdoor connection cable

Remote controller cable

Receiver connection

cable

11-4. GROUP CONTROL OPERATION

(COLLECTIVE OPERATION AND CONTROL OF MULTIPLE REFRIGERANT SYSTEMS (2 to 16))

●

Group control can be operated by using MAC-397IF-E. The setting of wired remote controller is subjected to variation according to the function of the indoor unit. (for mode operation, setting temperature, fan step, air direction) The display of remote controller and operating the indoor unit might be different. Neither the test run nor the function setting can be done by MA remote controller connected with MAC-397IF-E.

1.Connecting the MA& CONTACT TERMINAL Interface to the Indoor Unit

• Connect the interface unit and the indoor control board using the connecting cable that came with the interface.

• Extending or shortening the connecting cable that comes out of the interface may cause it to malfunction. Also, keep the connecting cable as far as possible away from the electrical wires and ground wire. Do not bundle them together.

INDOOR

CN105

CN92

Indoor control board

Connect the connecting cable that comes with the interface unit to the connector CN105 or CN92 on the indoor control board.

2.Connecting the remote control interface with each system

(For details on each system, see the relevant instruction manual.)

• Replace the interface unit mounting cord clamp with a supplied mounting cord clamp based on the thickness of the connecting cable used for each system.

Interface unit mounting cord clamp or mounting

Mounting screws (black) 3.5 o 12

Connecting cable for each system

cord clamps

• The cables connected to the Indoor unit should be mounted on or near the Indoor unit. If the connecting cable is not securely mounted, the connector may detach, break, or malfunction.

Mounting cord clamp

Electrical wire mounting bracket

Mounting screws 4 o 16

Mounting screws 4 o 10

Mounting cord clamp

• Set the interface dip switch (SW500–502) settings before turning on the power.

• If the interface dip switch (SW500–502) settings are not set correctly, the system will not function properly.

Use as a Wired Remote Control (Using the MA Remote Controller)

Note:

1. Be sure the Auto Heating/Cooling Display Setting on the MA remote controller is set to OFF before use.

• For information on how to set the Auto/Heating Cooling Display Setting, see the MA remote controller instruction manual.

• The actual operating status of the unit may differ from what is shown on the remote controller display

2. A test run cannot be initiated using the test run switch on the MA remote controller..

3. The horizontal vanes on the unit cannot be operated using the louver switch.

4. The range of room temperature indication is between 10: and 38:.

CN560

TB580

1 2 A B

Indoor unit

Remote control cord that came with the MA remote controller (Non polarity)

Dip switch settings

SW500 does not have to be set.

SW501: SW501- No. 1-4: Refrigerant address

• Set this switch when multiple indoor units (and remote control interfaces) are connected to a single MA remote controller.

• Always start the refrigerant address at "0".

Even when connecting multiple outdoor units, set a different refrigerant address for each indoor unit.

2 3 4

1Outdoor unit 2Outdoor unit 3Indoor unit 4Interface 5MA remote controller

Refrigerant address

Interface unit

Refrigerant address "0"

Refrigerant address "1"

Refrigerant address "2"

MA remote controller (PAR-21MAA) * PAR-20MAA cannot be used

with this interface.

112

3333

SW501- No. 5–6

In case of connecting MAC-397IF to this model, No. 5 should be set to OFF and No.6 should be set to ON.

SW501: Settings to accommodate MA remote controller and settings to accommodate outdoor units

SW No.

No. 1 No. 2 No. 3 No. 4

2 3 4 5 6

Functions OFF ON Comments

Only specify these settings when connecting an

Refrigerant address 0

MA remote controller.

Refrigerant address 1

Refrigerant address 2

Refrigerant address 3

Refrigerant address 4

Refrigerant address 5

Refrigerant address 6

Refrigerant address 7

Refrigerant address 8

Refrigerant address 9

Refrigerant address 10

Refrigerant address 11

Refrigerant address 12

Refrigerant address 13

Refrigerant address 14

Refrigerant address 15

SW No.

No. 5 No. 6

Functions Room temperature detector The model of Mr. SLIM exists in the

same group.

Indoor unit Not mixed

OFF

ON Remote control Mixed

Comments This should be set to OFF. This should be set to ON.

* Fan speed 2 step model : An actual fan speed is 2 step though the display of remote controller becomes 4 step or 3 step.

3. Test Run (Check Operations)

Interface status monitor

You can check the status of the interface by the LED lamp on the interface unit board.

LED lamp no.

LED521

LED522

LED523

Lamp off

DC 12 V is not being supplied from the air conditioner.

Device is not communicating properly with the air conditioner.

Device is not communicating properly with the MA remote controller.

Lamp on

DC 12 V is being supplied from the air conditioner.

–

Blinking

–

Blinking at approx. 1 second intervals: Device is communicating normally with the air conditioner.

Blinking at approx. 8 second intervals: Device is communicating normally with the MA remote controller.

* Use the table above to check the device operations.

SW502 : Air Conditioner Function Settings

SW No.

No. 1

No. 2

No. 3

No. 4

No. 5

No. 6

No. 7 No. 8

Functions

Cooling only type/ Heat pump type

Auto mode

Fan speed

Vane

Swing

Not in use Fan mode

OFF

Heat pump type

Not available

(setting No.3 disabled)

Available

(unit)

Available

–

Not available

Cooling only type

Available

(setting No.3 enabled)

Available

(remote controller)

Not available

–

Available

Comments

Set to OFF.

Permanently set to OFF.

4 speeds

3 speeds (2-speed

model set ON)

When operating a 2-speed model with the 3-speed setting (ON), the MA remote controller display will indicate 3 fan speeds. The table below shows the displays and the actual outputs at that time.

Display Meaning Indoor unit output

Low speedLow speed

Medium speed High speed

High speed

Set the mode in accordance with the operation manual for the indoor unit.

Heat pump type : Set to ON. Cooling only type : Set to OFF.

The Vane function of either of indoor unit : When the function is provided, it is Available (OFF). When the function is not provided, it is Not available (ON).

The Swing function of either of indoor unit : When the function is provided, it is Available (OFF). When the function is not provided, it is Not available (ON).

Set to ON.

High speed

4. Mounting the Remote Control Interface Unit

The Interface unit should be placed in a location where the connecting cable from the interface can reach an indoor unit. The device will not function properly if the connecting cable is extended so the connecting cable should not be extended. Mount the interface unit securely to a pillar or wall using 2 or more screws.

■ When Using Wall Mounting Brackets

Attach the wall mounting brackets to the interface unit using 2 mounting screws.

Mount the unit to a pillar or wall using 2 mounting screws.

Interface unit

Wall mounting brackets

Cord clamp for wiring

Mounting screws

■ When Mounting Directly to a Wall

Mount the interface unit case to the wall using the mounting screws.

Interface case mounting screws

Mounting screws

* When mounting the interface unit using a cushioning

material , be sure to mount it in a location where it will not fall.

Interface unit

Cushioning material

When mounting the interface unit inside a ceiling or wall, install an access door to facilitate maintenance.

When the interface unit is mounted above an indoor unit, it should be positioned 40 mm or more away from the unit to ensure that ceiling grills can be removed.

40 mm or more

Attach the interface unit connecting cable here. Store extra connecting cable in the ductwork space behind the indoor unit.

* If there is any slack in the connecting cable, use a

fastener to keep it in place.

11-5. POWER OUTAGE AUTOMATIC RECOVERY OPERATION

Indoor unit Indoor unit Indoor unit

Remote controller

Control room room 1 room 2 room 3

Indoor unit

Relay box Relay box Relay box

Indoor unit

Control circuit power supply

Indoor unit Indoor unit

Remote controller

Remote/local selection switch

Control room W

room 1 room 2 room 3

Remote controller

• Whenever a power outage or switching of the power supply causes the power supply of an operating air conditioner to go from OFF to ON, this function will automatically restore the operation of the air conditioner to its previous operating mode. w If the power is turned from OFF to ON when the air conditioner is not in operation, the air conditioner will not automatically

be turned on. However, the timer operation will be cancelled if the air conditioner is in timer operation (including when the unit is waiting for its start time). Setting for timer operation must be performed once again.

• If there is a momentary power outage of less than one second while the air conditioner is in operation, there may not be a clear determination of whether or not there was a power failure. When it has been determined that there has been a power failure, recovery will take approximately four minutes after the power is restored. Please wait. (Once "PLEASE WAIT" has appeared on the display, a protection system will operate to prevent the unit from restarting for three minutes.)

When it has been determined that there has been no power failure, operation will continue as is.

• Settings can be made by function selections from the remote controller.

• When there is group control, selection of all refrigerants is required.

11-6. INDIVIDUAL CONTROL OPERATION FROM A SEPARATE ROOM

• By simply centralizing the remote controllers installed in each room in a separate control room, individual control or centralized monitoring of the air conditioners in each room can be attained.

• Air conditioner control can be performed up to a total of 500 meters away by connecting the indoor units and remote controllers with 0.3 to 1.25 mm22-core cable.

• If a remote controller is installed in a room and control room, refer to the section on operating with two remote controllers.

11-7. COMBINED REMOTE/LOCAL CONTROL

• Operation/remote controller prohibit/ stop can be controlled from a remote location by routing the remote stop/start adapter (PAC-SE55RA-E sold separately) through the relay box installed on site. When this remote control is cancelled, the local remote controller can be used for operating and stopping the air conditioner.

1. Basic system wiring

• Use the remote start/stop adapter (PAC-SE55RA-E) and connect the "Start/Stop Circuit From Remote Location" that comes from the relay box and remote/local selection switch and connect it to the CN32 connector on the printed circuit board for the indoor unit

1 Match the rated power supply voltage of the remote/local selection switch and relay (X2) with the power supply for the con-

troller.

2 When performing group control of multiple outdoor unit using a timer, be sure to arrange the timer so that all units do not start

at the same time. If this is not performed, all of the units will start at one time creating an over current that will cause the circuit breaker to operate.

3 An on-delay system is one that includes specifications for operating a limited time when an on signal is received and has a tem-

porary off timer for recovery operations.

4 Use a connecting relay when the wiring length exceeds 10 meters, such as when performing remote wiring. If this is not pro-

vided, abnormal operation will occur.

(1) System diagram

W The AC for the control room is usually disconnected from the remote/local control system.

Control circuit power supply

Dedicated short circuit prevention device

Remote/local selection switch

No.1 unit relay box

No.2 unit relay box

3 Relay box

Adapter for

remote start/stop

Remote/local

selection switch

T Timer

(On delay system)

X Relay

Model PAC-SE55RA-E (Sold separately)

(Example) Single polarity single-throw switch (125V rating)

To next unit

Brown

Red

2 X2

One method of easily distinguishing the on/off status of SW1 and SW2 is to use together with a "illuminated switch R" or pilot lamp.

SW1 SW2

Orange Orange

Brown

Red

•

Starting/stopping with remote controller disabled.

• Starting/stopping by remote operation enabled.

•

Starting/stopping with remote controller disabled.

• AC is in operation.

• Starting/stopping by remote operation enabled.

•

Starting/stopping with remote controller disabled.

• Starting/stopping by remote operation enabled.

•

Starting/stopping with remote controller disabled.

• AC is in operation.

• Starting/stopping by remote operation enabled.

Remote control

OFFON

Description of functions

OFFON

SW1 SW2

OFFON

Remote/local selection switch

(2) Basic wiring diagram

Indoor unit circuit board

CN32

Orange Red

Brown

On site wiring On site wiring

On site wiring

Timer

For remote operation

On site wiring

This is not used. Protect exposed wire by wrapping with insulating tape

On site wiring

SW1

Indoor unit circuit board

CN32

Orange Red

Brown

SW1 SW2

Indoor unit circuit board

CN32

Orange Red

Brown

SW2

Indoor unit circuit board

CN32

Orange Red

Brown

SW2

Indoor unit circuit board

CN32

Orange Red

Brown

Indoor unit circuit board

CN32

Orange Red

Brown

SW2

For remote operation

For timer operation

(3) Part specifications

Note: When using group address, connect to refrigerant

address "0" on the inside.

2. Examples of system applications

In any of the following examples, there is a five to six second delay from the time the operating command is issued until the operation begins. 1 This is when starting and stopping is performed by remote operation or external timer and when starting and stopping by

the remote controller is to be prohibited.

2 This is when starting and stopping is performed by remote operation or external timer and when starting and stopping by

the remote controller is to be separated.

3 This is when starting and stopping is performed by remote operation and then allowing starting or stopping by remote con-

trol at any time.

4 This is when permitting or prohibiting operation by remote controller is performed by external circuit.

Use momentary switch for SW2. (Manual operation/automatic recover switch on time is more than one second.) Press SW2 (on time is more than one second) and operation starts. After this has been done, stopping or restarting can be down by remote controller.

If SW2 is on, operation by remote controller cannot be performed. If SW2 is off, operation by remote controller is permitted.

11-8. OBTAINING REMOTE DISPLAY

CN90 CN1

CN41

Wireless

TB3

External input

TB2

Error

TB1

Operation

Indoor control circuit board Remote operation adapter

External input

Error output (No voltage momentary "a" contact)

Operating output (No voltage momentary "a" contact)

No voltage (Momentary "a" contact)

Power supply for controller

Timer control

panel (on-site)

Remote controller

Indoor unit

Remote controller

Indoor unit

Remote controller

Indoor unit

Use the remote operation adapter (PAC-SF40RM-E) to provide operation/error non-voltage contact output and on/off input function.

(1) Wiring method

Caution

TB3 is a dedicated terminal for contact point input. Never input voltage. It will damage the indoor control circuit board.

1 When using external output function

Insert the 9-prong connector (3-core) of the attached cable to CN90 on the indoor control circuit board.

2 When using the external input function

Insert the 4-prong connector (2-core) of the attached cable to CN41 on the indoor control circuit board. W The connector is direction-sensitive. Use care not to make an error when inserting.

Never force the connectors. This will result in damage.

(2) Locally procured parts

Item Name Model and specifications

External output function External output signal wire Use sheathed vinyl coated cord or cable.

Wire type: CV, CVS or equivalent. Wire size: Stranded wire 0.5mm

to 1.25mm

Single straged: {0.65mm to 1.25mm

Display lamp, etc. No voltage “a” contact AC200V (DC30V), 1A or less

External input function External input signal wire Use sheathed vinyl coated cord or cable.

Wire type: CV, CVS or equivalent. Wire size: Stranded wire 0.5mm2to 1.25mm

Single straged: {0.65mm to 1.2mm

Switch No voltage “a” contact

(Start and stop operation is switched by inputting a pulse of 200ms or more)

11-9. TIMER OPERATION

● Timer operation can be performed by setting the wired or wireless remote controller timer. Start and stop times can be set in 10-minute increments within a 24-hour period.

● When used in combination with the central control remote controller of the M-NET control system for the outdoor unit, one program timer can be used for individual timer settings for each group of the central control system. (Each timer setting can be stored in data memory so timer settings for up to 50 groups can be set individually.)

W Please refer to the MELANS catalog or technical information for details about the central control remote controller.

Operating with on-site timer

(1) Summary of system

If the “Remote ON/OFF adapter” (PACSE55RA-E) (sold separately) is used, the on-site timer can be operated to turn each unit on and off.

(2) Basic pattern for timer control

Orange

As selected by remote controller operation switch.

From indoor unit

Red Brown

SW ON SW OFF

Timer control Remote controller control

Orange

From indoor unit

Red Brown

Wiring diagram

Control circuit board

Slim indoor unit

Lossnay

Lossnay linkage

(PAC-SB81VS)

External control

input terminal

block

1 2

Connector

(CN2L)

Basic wiring

X: Relay (DC12V) CN25 (Indoor unit circuit board)

System example

Remote controller

Indoor unit

Relay box (On-site tinstallation)

Relay box

(On-site tinstallation)

Remote controller

Humidifier unit

Humidifier

unit

Use a no-voltage contact point output timer (one that has separate circuits for the load side and timer power supply). a) Timer-independent control b) Combined control by timer and remote controller

(3) Basic system

Refer to 11-7. COMBINED REMOTE/LOCAL CONTROL.

11-10. LINKED OPERATION WITH PERIPHERAL AIR CONDITIONERS EQUIPMENT

■ Lossnay operation

● Linked operation with a Lossnay unit can be obtained by connecting Lossnay linkage cable (Model PAC-SB81VS - sold

separately) to the CN2L (Remote kit) on the circuit board of the indoor unit. This function must be selected from the remote controller.

1 Summary of wiring

● Connect the Lossnay linkage cable (Model PACSB81VS) connector to CN2L on the indoor unit on the circuit board of the indoor unit.

● Connect the lead wire of the Lossnay linkage cable to the Lossnay external control input terminal blocks (1) and (2). (At this time, the input terminal blocks (1) and (2) have no polarity.)

2 Precautions when wiring

● The Lossnay linkage cable can be extended up to a maximum of 500 meters. When extending the Lossnay linkage cable, be sure to connect securely and take proper steps to ensure insulation. (Extension cable specifications: Sheathed vinyl cord or cable 0.5 to 0.75mm

● Lossnay linked cable

● Arrange wiring so that there can be no contact between the Lossnay linkage cable and the power supply cord. Contact

may cause malfunctioning. (Separate by 5cm or more.)

)

11-11. OBTAINING HUMIDIFIER SIGNAL

11-12. EXTERNAL MOUNTING OF TEMPERATURE SENSOR

● The humidifier signal that is linked to the AC heating operation (indoor unit ventilator) can be obtained by connecting the adapter for the humidifier signal to connector CN25 on the printed circuit for the indoor unit and wiring it to the humidifier unit via the on-site relay box. There is no output when the thermostat is off, during heating preparation and during defrosting.

W Please consult your nearest Mitsubishi Electric

representative for information about obtaining the adapter for humidifier signal.

● Temperature control from an alternative external location can be performed by connecting the temperature sensor (Model PAC-SE41TS-E - sold separately) to the CN20 connector on the circuit board for the indoor unit.

● The wired remote controller also has an internal temperature sensor. Function selection from the remote controller is required. Refer to “FUNCTION SETTING” for information of installation manual about selecting functions with the remote controller.

11-13. MULTIPLE REMOTE CONTROL DISPLAY

CN51

connector(5P)

GREEN

Power supply

Electrical insulation is needed.

Wiring at the actual place

Optional multiple remote controller adapter

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

YELLOW ORANGE

RED

BROWN

Power supply

Remote controller cable

Relay box (Field supply)

Remote controller

3wires 3wires 3wires

2wires

No.1 unit No.2 unit No.3 unit

Muitiple remote control ON-OFF display (Field supply)

(Operation check)

Power supply

RL-1 GL-1

Multiple Remote Control Display

Multiple remote controller adapter

connect to the connector CN51

Relay box

X1-1

X2-1

RL-2 GL-2

RL-3

No.1 unit

GL-3

X1-1

X2-1

X1-2

X1-3

X2-3

X2-2

No.2 unit

No.3 unit

X1-2

X2-2

X1-3

X2-3

Be sure to secure insulation material by tape and such

Green

Yellow

Orange

Connector (5P)

Indoor unit side

Multiple remote controller adapter PAC-SA88HA-E

Be sure to secure insulation material by tape and such

Installation at site

CN51 on indoor controller board

Red

Brown

You can control several units with a multiple remote control display, by

wiring an optional multiple remote controller adapter (PAC-SA88HA-E) with relays and lamps on the market.

How to wire

(1) Connect the multiple remote controller adapter to the connector CN51

on the indoor controller board.

(2) Wire three of the five wires from the multiple remote controller adapter

as shown in the figure below.

Refer to 8-7-2 Indoor controller board.

[Notes on Signs] X1:Relay (for operation lamp) X2:Relay (for check lamp) RL:Operation Lamp GL:Check Lamp [Field supplied parts] Relays:12V DC with rated coil power

consumption below 0.9W.

Lamps:Matching to power supply voltage.

11-14. INTERLOCKING OPERATION METHOD WITH DUCT FAN (Booster fan)

●Whenever the indoor unit is operating, the duct fan operates. (1)Connect the optional multiple remote

controller adapter(PAC-SA88HA-E)to the connector CN51 on the indoor controller board.

(2)Drive the relay after connecting the

12V DC relay between the Yellow and

Orange connector lines. Use a relay under 1W. MB: Electromagnetic switch power relay

for duct fan.

X: Auxiliary relay (12V DC LY-1F)

12 DISASSEMBLY PROCEDURE

PLH-1.6KAKH.UK PLH-2KAKH.UK PLH-2.5KAKH.UK PLH-1.6KAK.UK PLH-2KAK.UK PLH-2.5KAK.UK

OPERATING PROCEDURE PHOTOS & ILLUSTRATIONS

Be careful on removing heavy parts.

1. Removing the air intake grille

(1) Press the button.

PUSH

(2) Open the intake grille 90°. (3) Remove the clip. (4) Slide the shaft in the hinge to the left and remove the

intake grille.

2. Removing the controller cover assy (electrical parts)

(1) Disconnect the lead wire of the vane motor from the clamp,

and disconnect the red connector (10P). (2) Remove 2 of 4 screws from the bell mouth. (3) Remove the bell mouth. (4) Disconnect the following connectors from the box.

Red (3P) for the fan motor White (2P) for the pipe temperature thermistor (TH2) Blue (2P) for the drain pump

White (3P) for the drain sensor (5) Disconnect the blue ground wire of the controller cover assy. (6) Remove 3 of 4 screws from the controller cover assy, and

loosen the other screw.

(7) Pull out the controller cover assy.

(Electrical parts inside the bell mouth) Terminal block power board Indoor fan capacitor Room temperature thermistor (TH1) Indoor controller board Relay

Figure 1

PUSH button

Photo 1

Photo 2

Nut

Screws

Relay

Radiator aluminum cap

Screws

Lead wire for vane motor

Shaft

Intake grille

Clamp

Indoor controller board

Screws

Connector

Terminal block

Bell mouth

3. Removing the fan motor

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

Connector

Photo 3

Power board

Fan motorConnector

nut

Screws

Room temperature thermistor (TH1)

OPERATING PROCEDURE PHOTOS & ILLUSTRATIONS

4. Removing the room temperature thermistor

(1) Remove the electrical box cover (2) Remove the holder and the room temperature thermistor

by pulling the catch.

(3) Disconnect the red connector,CN20,on the indoor con-

troller board.

5. Removing the indoor coil thermistor

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

attached to the copper pipe.

(7) Disconnect the 2-pin white connector.

Photo 4

Room temperature thermistor

Photo 5

Indoor controller board

Indoor coil thermistor

6. Removing the panel

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

7. Removing the drain pan

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

cover.

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

and remove the corner supports 1, 2 and 3.

(8) Pull out the drain pan.

wPull the left and right of the pan gradually.

Be careful not to crack or damage the pan.

Photo 6

Screws

Panel

Photo 7

Corner support 2

VAcover

Mounting hole

Temporary hanging hook

Rubber bush

Corner support 3

Screws

Temporary hanging hook

Screws

Corner support 1

OPERATING PROCEDURE PHOTOS & ILLUSTRATIONS

8. Removing the drain pump and drain sensor

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

from the drain pump. (7) Remove the drain sensor and the holder. (8) Pull out the drain pump.

9. Removing the heater (PLH-1.6/2/2.5KAKH only)

(1) Remove the panel. (2) Remove the bell mouth. (3) Remove the controller cover assy. (4) Remove the drain pan. (5) Remove the turbo fan. (6) Remove the 5 screws of the heater assembly. (7) Remove the clamp (1 screw) securing the lead wire. (8) Pull the heater assembly out.

Photo 8

Drain hose

Clip

Photo 9

Heater assembly

Drain pump

Drain sensor holder

Lead wire clamp

Screws

10. Removing the heat exchanger

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

and pull out the piping cover.

Photo 10

Photo 11

Piping cover

Heater screws

Coil support A

Coil support B

Heat exchanger

Coil screws

Screws of piping cover

13 RoHS PARTS LIST

ON/OFF

TEMP.

PANEL PARTS PLH-1.6KAKH.UK PLH-2KAKH.UK PLH-2.5KAKH.UK PLH-1.6KAK.UK PLH-2KAK.UK PLH-2.5KAK.UK

No.

1 2 3 4 5 6 7

Part No. Part Name

RoHS

S70 560 003

S70 29H 500

S70 29H 691

S70 KW1 713

S70 030 305

S70 29H 098

S70 29H 061

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

Specification

PAR-21MAA-E

PLH-1.6/2/2.5KAK.UK PLH-1.6/2/2.5KAKH.UK

Q'ty/set

1 1 1 1 1 1 2

Remarks

(Drawing No.)

Wiring

Diagram

Symbol

R.B

Recom-

mended

Q'ty

Unit

Price

Amount

PANEL PARTS PLH-1.6KAKH.UK PLH-2KAKH.UK PLH-2.5KAKH.UK PLH-1.6KAK.UK PLH-2KAK.UK PLH-2.5KAK.UK

17 1

No.

1 2 3 4 5 6 7 8

RoHS

G G G G G G G G

Part No. Part Name

S70 29H 002 S70 31H 063 S70 29H 223 S70 29H 041 S70 29H 040 S70 29H 056 S70 29H 063 S70 29H 085

AUTO VANE SPRING JOINT 2 VANE MOTOR GRILLE GEAR LEFT GRILLE GEAR RIGHT PUSH BUTTON SPRING JOINT 1 AIR GUIDE

Specification

Q'ty/set

PLH-1.6/2/2.5KAK.UK PLH-1.6/2/2.5KAKH.UK

4 1 1 1 1 1 1 1

Remarks

(Drawing No.)

<3/SET>

Wiring

Diagram

Symbol

Recom-

mended

Q'ty

7 6

Unit

Price

Amount

FUNCTIONAL PARTS PLH-1.6KAKH.UK PLH-2KAKH.UK PLH-2.5KAKH.UK PLH-1.6KAK.UK PLH-2KAK.UK PLH-2.5KAK.UK

1 2

34 33

32 31

THERMAL FUSE

THERMAL

SWITCH

PIPE

TEMPERATURE THERMISTOR

26 25

FUSE

24 23

1715

1 2 3 4 5 6 7

11 12 13 14 15 16 17 18 19 20 21 22 23

25 26 27 28 29 30 31 32 33

1 3 1 2 1 2 1

1 1 1 1 1

1 1 1 1 1 1 1 1

1 1 1 1 1

1 1

1 3 1 2 1 2 1

1 1 1 1 1

1 1 1 1 1 1 1 1

1 1 1 1 1

1 1

PLH-·KAKH.UK PLH-·KAK .UK

1.6 2 2.51.6 2 2.5 1 3 1 2 1 2 1

1 1 1 1 1

1 1 1 1 1 1 1 1

1 1 1 1 1

1 1

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

H1 H1

I.B

FUSE<I.B>

88H

TH1

P.B TB4 TB5 TB2

DS DP

TH2 26H FS2 FS1

DRUM1 ASSY MOTOR MOUNT FAN MOTOR LEG DRUM2 ASSY LEG SPL WASHER HEATER ELEMENT HEATER ELEMENT HEAT EXCHANGER HEAT EXCHANGER HEAT EXCHANGER DRAIN PAN DRAIN PAN CAPACITOR CONTROL COVER ASSY CONTROLLER BOARD FUSE RELAY BELL MOUTH ROOM TEMPERATURE THERMISTOR POWER BOARD TERMINAL BLOCK TERMINAL BLOCK TERMINAL BLOCK DRAIN PLUG CORNER COVER SENSOR HOLDER SENSOR HOLDER DRAIN SENSOR DRAIN PUMP DRAIN SOCKET PIPE TEMPERATURE THERMISTOR THERMAL SWITCH THERMAL FUSE THERMAL FUSE INSULATOR TURBO FAN INNER COVER INNER COVER BASE

PAI-V30F-1

467W 240V 700W 240V

2.5µF 400V

250V 6.3A JC-1a DC12V

S/750XAP

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

OFF42°C ON32°C 77°C 250V 10A 98°C 250V 10A

No.

G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G G

RoHS

Part No. Part Name

Specification

Q'ty/set

Price

Unit

Amount

Remarks

(Drawing No.)

Wiring

Diagram

Symbol

Recom-

mended

Q'ty

S70 003 688 S70 29H 105 S70 E00 762G S70 100 130 S70 004 688 S70 101 130 S70 08K 097 S70 A00 300G S70 A01 300G S70 580 480G S70 38H 480G S70 41H 480G S70 A10 529G S70 A00 529G S70 29H 255G S70 003 501 S70 R10 310 S70 E00 239 S70 71G 215 S70 003 502 S70 E10 202 S70 K09 313 S70 K02 716 S70 512 716 S70 521 716 S70 A48 524 S70 002 660 S70 31K 241 S70 006 533 S70 31K 266 S70 55K 355G S70 29H 523 S70 08K 202 S70 046 700 S70 32K 706 S70 33K 706 S70 20J 303 S70 41N 114 S70 002 659 S70 001 659 S70 002 687

OPTIONAL PARTS

14-1. REFRIGERANT PIPES

Service Ref. : PLH-1.6KAK.UK PLH-2KAK.UK PLH-2.5KAKUK

PLH-1.6KAKH.UK PLH-2KAKH.UK PLH-2.5KAKH.UK

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

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 20m, an additional charge of refrigerant is needed.

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

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

PAC-05FFS-E

PAC-07FFS-E

Liquid:ø9.52

Indoor unit:Flared

Gas:ø15.88 Outdoor unit:Flared

14-2. MULTIPLE REMOTE CONTROLLER ADAPTER

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

Part No.

Applicable Service Ref.

1 2 3 4 5

BRN RED ORN YLW GRN

PAC-SA88HA-E

PLH-1.6/2/2.5KAK/KAKH.UK

PAC-10FFS-E

10m

PAC-15FFS-E

15m

14-3. REMOTE ON/OFF ADAPTER

Part No.

Applicable Service Ref.

14-4. REMOTE SENSOR

Part No.

Applicable Service Ref.

14-5. REMOTE OPERATION ADAPTER

Part No.

Applicable Service Ref.

PAC-SE55RA-E

PLH-1.6/2/2.5KAK/KAKH.UK

PAC-SE41TS-E

PLH-1.6/2/2.5KAK/KAKH.UK

PAC-SF40RM-E

PLH-1.6/2/2.5KAK/KAKH.UK

14-6. SPACE PANEL

750

Hole

R7.8

R26

750

R26

R7.8

965

Hole

965

R25

R37

R31

R25

R37

R31

R18047.5

R18102.5

440

122 99

Part No. PAC-SE01AS-E

Applied Model PLH-1.6/2/2.5KAK/KAKH.UK

14-7. WIDE PANEL

Part No. PAC-SE06WP-E

Applied Model PLH-1.6/2/2.5KAK/KAKH.UK

14-8. AIR OUTLET SHUTTER PLATE

Part No. PAC-SF38SP-E

Applied Model PLH-1.6/2/2.5KAK/KAKH.UK

14-9. MULTI-FUNCTIONAL CASEMENT

Part No. PAC-SE21TM-E

Applied Model PLH-1.6/2/2.5KAK/KAKH.UK

Casement

1pc

Screw with

washer

4pcs

M5x0.8x15

Duct flange

1pc

Tapping

screw

6pcs 4x10

Hook Band

2pcs 1pc

14-10. HIGH-EFFICIENCY FILTER ELEMENT (MULTI-FUNCTIONAL CASEMENT is required.)

Part No. PAC-SE13KF-E

Applied Model PLH-1.6/2/2.5KAK/KAKH.UK

14-11. INTERFACE

Part No.

Applicable Service Ref.

MAC-397IF-E

PLH-1.6/2/2.5KAK/KAKH.UK

HEAD OFFICE : TOKYO BLDG.2-7-3 MARUNOUCHI, CHIYODA-KU, TOKYO 100-8310, JAPAN

New publication, effective Jun. 2006 Specifications subject to change without notice.

Mitsubishi OC406 Service Manual

Specifications and Main Features

Frequently Asked Questions

User Manual