Mitsubishi PLH-1.6KKHB.UK, PLH-2.5KKHB.UK, PLH-2KKHB.UK Service Manual

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Page 1

TECHNICAL & SERVICE MANUAL

SPLIT-TYPE, HEAT PUMP, AIR CONDITIONERS

Indoor unit [Model names]

PLH-1.6KKHB PLH-2KKHB PLH-2.5KKHB

[Service Ref.]

PLH-1.6KKHB

PLH-2KKHB

PLH-2.5KKHB

No. OC147

1997

Ceiling CassettesSeries PLH

This manual does not cover the following outdoor units. When servicing them, please refer to the service manual No.OC150 and this manual in a set.

[Service Ref.] PUH-1.6VKA3·UK PUH-2VKA

·UK

PUH-2.5VKA

·UK

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

2. PART NAMES AND FUNCTIONS ......3

3. SPECIFICATIONS...............................6

4. DATA ...................................................9

5. OUTLINES AND DIMENSIONS ........13

6. WIRING DIAGRAM ...........................15

REFRIGERANT SYSTEM DIAGRAM .....

8. OPERATION FLOW-CHART ............17

9. MICROPROCESSOR CONTROL .....21

10. TROUBLESHOOTING ......................43

11. 4-WAY AIR FLOW SYSTEM .............51

12. SYSTEM CONTROL .........................52

13. DISASSEMBLY PROCEDURE.........57

14. PARTS LIST......................................60

15. OPTIONAL PARTS ...........................64

CONTENTS

INDOOR UNIT

FILTER

CHECK MODE

TEST RUN

REMOTE CONTROLLER

The Slim Line. From Mitsubishi Electric.

Page 2

1 FEATURES

1.PURSUING CONPACTNESS

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

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

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

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

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

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

3.AIRFLOW ADJUSTABLE TO ANY INDOOR ENVIRONMENT

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

4.A FURTHER REFINEMENT OF COMFORT WITH NOISE SUPPRESION

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

5.ECONOMICAL AND EASY MAINTENANCE

(1)Push-open grill

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

(2)An unprecedented level of vane-cleaning

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

(3)Long-life fillter

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

Indoor unit

Ceiling Cassettes

Series PLH

Remote controller

FILTER

CHECK MODE

TEST RUN

Service Ref.

Cooling capacity/Heating capacity

W Btu/h

PLH-1.6KKHB.UK 4,400/4,650[6,050] 15,000/15,900[20,600] PLH-2KKHB.UK 5,400/5,800[7,200] 18,400/19,800[24,600] PLH-2.5KKHB.UK 6,300/[7,200/9,300] 21,500/24,600[31,700]

Page 3

6.COMPACT DIMENSIONS MEAN EASY INSTALLATION

(1)Carefree suspension work with lightweight unit

The new unit weighs in at 20kg (9kg lighter than the previous model) and is easy to handle and install. What's more, suspension work is facillitated by compact dimensions ensuring a snug fit.

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

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

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

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

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

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

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

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

2 PART NAMES AND FUNCTIONS

● Indoor (Main) Unit

PLH-1.6KKHB·UK PLH-2KKHB·UK PLH-2.5KKHB·UK

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

Grill

Filters Remove dust and pollutants from inhaled air

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

Downward Air Outlet Sets airflow downward automatically during heating.

Air Intake Inhales air from room.

Page 4

● Remote controller

● Operation buttons

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

This switches between continuous operation and the timer operation.

button

This sets the ventilation fan speed.

button

This sets or switches the current time. start time and stop time.

button

This switches the horizontal fan motion ON and OFF.

button

Press this button to switch the cooler electronic dry (dehumidify) automatic and heater modes.

button

This resets the filter service indication display.

FILTER button

This switches between the operation and stop modes each time it is pressed. The lamp on this butoon lights during operation.

ON/OFF button

This sets the room temparature The temparature setting can be performed in 1°C units

Setting range

Cooler 19°C to 30°C Heater 17°C to 28°C

TEMP button

This model name of the remote controller is indicated.

This adjusts the vertical angle of the ventilation.

(This button dose not operate in this model)

CHECK-TEST RUN button

Only press this button to perform an inspection check or test operation. Do not use it for normal operation.

FILTER

CHECK MODE

TEST RUN

Page 5

Caution

● Only the display lights when the unit is stopped and power supplied to the unit.

● When power is turned ON for the first time the (CENTRAL CTRL) display appears to go off momentarily but this is not a malfunction.

● When the central control remote control unit, which is sold separately, is used the ON-OFF button, button and TEMP

button do not operate.

● “NOT AVAILABLE” is displayed when the

k button are pressed.This indicates that this room unit is not equipped with the fan

direction adjustment function and the louver function.

FILTER

CHECK MODE

TEST RUN

240KA

CENTRALLY CONTROLLED display

This indicates when the unit is controlled by optional features such as central control type remote controller.

display

This indicates when the continous operation and time operation modes are set. It also display the time for the timer operation at the same time as when it is set.

OPERATION MODE display

This indicates the operation mode.

STANDBY display

This indicates when the standby mode is set from the time the sleep operation starts until the heating air is discharged.

DEFROST display

This indicates when the defrost operation is performed.

CHECK display

This indicates when a malfunction has occurred in the unit which should be checked.

display

This lamp lights when electricity is supplied to the unit.

display

This displays the selected setting temperature.

display

The current time , start time and stop time can be displayed in tensecond intervals by pressing the time switch button. The start time or stop time is always displayed during the timer operation.

display

This displays the air direction.

● Display

In this display example on the bottom left, a condition where all display lamps light is shown for explanation purposes although this differs from actual operation.

display

This display lights in the check mode or when a test operation is performed.

CHECK MODE

TEST RUN

Display

FILTER

This lamp lights when the filter need to be cleaned.

display

The temperature of the suction air is displayed during operation. The display range is 8° to 39°C. The display flashes 8°C when the actual temperature is less than 8° and flashes 39°C when the actual temperature is greater than 39°C.

display

The selected fan speed is displayed.

Operation lamp

This lamp lights during operation, goes off when the unit stops and flashes when amalfunction occurs.

Page 6

SPECIFICATIONS

Service Ref.

Item Function

Capacity

Btu/h

Total input kW

INDOOR UNIT

Service Ref.

Power supply(phase, cycle,voltage)

Input

ARunning current

AStarting current External finish Heat exchanger

Booster heater Operation control & Thermostat

Fan(drive) x No.

kWFan motor output

K/min(CFM)Airflow(Low-High)

mmAq,Pa

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

Weight

mm,(in.)

Dimensions

mm,(in.)W mm,(in.)D mm,(in.)

kg,(lbs)

External static pressure

OUTDOOR UNIT

REEFRIGERANT PIPING

Service Ref.

Power supply (phase, cycle, voltage)

Input

ARunning current

AStarting current External finish Refrigerant control Compressor

Fan motor output

Heat exchanger

Model

Starter type

kg,(lbs)

Motor output

Protection devices

Airflow K/min(CFM)

Fan(drive) x No.

Defrost method Noise level

Weight Refrigerant

Dimensions

mm,(in.)W

Pipe size O.D.

mm,(in.)Liquid mm,(in.)Gas

Connection method

Indoor side Outdoor side

Between the indoor & outdoor unit

Height difference Piping length

mm,(in.)D mm,(in.)

kg,(lbs)

Charge

dB(A)

PLH-1.6KKHB.UK

Cooling

15,000

4,400

1.59

Heating

15,900[20,600]

4,650[6,050]

1.51[2.91]

0.15

0.64

0.70

0.10[1.50]

0.45[6.28]

0.50[6.63]

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

UNIT : 20(44)

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

PANEL : 30(1-1/8)

PANEL :3.7(8)

1.44

6.74

1.41

6.60

PLH-1.6KKHB.UK

Single. 50Hz. 220-240V

Galvanized sheets with gray heat insulation

Plate fin coil

Turbo fan (direct) x 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

3.UK

Single. 50Hz. 220-240V

Munsell 5Y 7/1

Capillary tube

Hermetic

RH247VFC

1.2

Line start

Inner thermostat, High pressure switch

Plate fin coil

Propeller (direct) x1

0.065

45(1,590)

Reverse cycle

870(34-1/4)

295+24 (11-5/8 add 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

Page 7

Service Ref.

Item Function

Capacity

Btu/h

Total input kW

Service Ref.

Power supply(phase, cycle,voltage)

Input

ARunning current

AStarting current External finish Heat exchanger

Fan(drive) x No.

kWFan motor output

K/min(CFM)Airflow(Low-High)

Booster heater

INDOOR UNIT

External static pressure

mmAq,Pa

kW Operation control & Thermostat Noise level(Low-High) dB(A) Cond. drain conn. O.D.

mm,(in.) mm,(in.)W

Dimensions

Weight

mm,(in.)D mm,(in.)

kg,(lbs)

Service Ref.

Power supply (phase, cycle, voltage)

Input

ARunning current

AStarting current External finish Refrigerant control Compressor

Model Motor output

kW Starter type Protection devices

Heat exchanger

OUTDOOR UNIT

Fan(drive) x No. Fan motor output

kW Airflow K/min(CFM)

Defrost method Noise level

dB(A)

mm,(in.)W

Dimensions

Weight

mm,(in.)D mm,(in.)

kg,(lbs)

Refrigerant

Charge

Pipe size O.D.

Connection method

Between the indoor & outdoor unit

REEFRIGERANT PIPING

Indoor side Outdoor side Height difference Piping length

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

PLH-2KKHB.UK

Cooling

18,400

5,400

2.34

Heating

19,800[24,600]

5,800[7,200]

2.32[3.72]

PLH-2KKHB.UK

Single. 50Hz. 220-240V

0.14

0.65

0.72

0.10[1.50]

0.45[6.28]

0.50[6.63]

Galvanized sheets with gray heat insulation

Plate fin coil

Turbo fan (direct) x 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 : 20(44)

PUH-2VKA

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

PANEL : 30(1-1/8)

PANEL :3.7(8)

2.UK

Single. 50Hz. 220-240V

2.20

9.86

2.22

9.95

Munsell 5Y 7/1

Capillary tube

Hermetic

NH38VMD

1.7

Line start

Inner thermostat, HP switch

Plate fin coil

Propeller (direct) x1

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

Page 8

Service Ref.

Item Function

Capacity

Btu/h

Total input kW

INDOOR UNIT

Service Ref.

Power supply(phase, cycle,voltage)

Input

ARunning current

AStarting current External finish Heat exchanger

Booster heater Operation control & Thermostat

Fan(drive) x No.

kWFan motor output

K/min(CFM)Airflow(Low-High)

mmAq,Pa

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

Weight

mm,(in.)

Dimensions

mm,(in.)W mm,(in.)D mm,(in.)

kg,(lbs)

External static pressure

OUTDOOR UNIT

REEFRIGERANT PIPING

Service Ref.

Power supply (phase, cycle, voltage)

Input

ARunning current

AStarting current External finish Refrigerant control Compressor

Fan motor output

Heat exchanger

Model

Starter type

kg,(lbs)

Motor output

Protection devices

Airflow K/min(CFM)

Fan(drive) x No.

Defrost method Noise level

Weight Refrigerant

Dimensions

mm,(in.)W

Pipe size O.D.

mm,(in.)Liquid mm,(in.)Gas

Connection method

Indoor side Outdoor side

Between the indoor & outdoor unit

Height difference Piping length

mm,(in.)D mm,(in.)

kg,(lbs)

Charge

dB(A)

PLH-2.5KKHB.UK

Cooling

21,500

6,300

2.60

Heating

24,600[31,700]

7,200[9,300]

2.33[4.43]

0.14

0.61

0.67

0.10[2.20]

0.45[9.20]

0.50[9.55]

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

UNIT : 21(46)

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

PANEL : 30(1-1/8)

PANEL :3.7(8)

2.46

10.68

2.23

9.78

PLH-2.5KKHB.UK

Single. 50Hz. 220-240V

Galvanized sheets with gray heat insulation

Plate fin coil

Turbo fan (direct) x 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

2.UK

Single. 50Hz. 220-240V

Munsell 5Y 7/1

Capillary tube

Hermetic

NH41VMD

2.0

Line start

Inner thermostat, HP switch

Plate fin coil

Propeller (direct) x1

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

Page 9

DATA4

1. PERFORMANCE DATA

1) COOLING CAPACITY

Note CA:Capacity (W)

P.C.:Power consumption (kW)

Cooling capacity correction factors

PLH-1.6KKHB.UK

PLH-2KKHB.UK

PLH-2.5KKHB.UK

Indoor intake

air

WB$C

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

Outdoor intake air DB$C

CA 4,439 4,726 5,017 5,310 5,448 5,800 6,157 6,517 6,356 6,767 7,183 7,603

P.C.

1.27

1.30

1.32

1.35

1.88

1.91

1.95

1.99

2.08

2.13

2.17

2.21

CA 4,317 4,602 4,899 5,209 5,299 5,648 6,012 6,392 6,182 6,589 7,014 7,458

P.C.

1.33

1.36

1.38

1.41

1.96

2.00

2.04

2.08

2.17

2.22

2.26

2.31

CA 4,159 4,434 4,724 5,028 5,104 5,442 5,798 6,171 5,955 6,349 6,764 7,199

P.C.

1.43

1.46

1.50

1.53

2.11

2.15

2.20

2.25

2.34

2.39

2.45

2.50

CA 3,990 4,258 4,542 4,840 4,897 5,226 5,574 5,940 5,713 6,097 6,503 6,930

P.C.

1.53

1.57

1.61

1.65

2.26

2.31

2.37

2.42

2.51

2.57

2.63

2.69

CA 3,812 4,074 4,352 4,645 4,678 5,000 5,341 5,700 5,472 5,841 6,232 6,645

P.C.

1.64

1.68

1.72

1.77

2.41

2.47

2.54

2.61

2.68

2.74

2.82

2.90

CA 3,624 3,882 4,154 4,442 4,447 4,764 5,099 5,451 5,207 5,571 5,954 6,359

P.C.

1.74

1.79

1.84

1.90

2.56

2.63

2.71

2.80

2.85

2.92

3.01

3.11

Service Ref.

Refrigerant piping length(one way)

30m

0.961

0.959

0.950

35m

0.956

0.950

0.940

40m

0.948

0.945

0.930

45m

—

0.920

50m

—

0.910

PLH-1.6KKHB.UK

PLH-2KKHB.UK

PLH-2.5KKHB.UK

1.00

10m

0.993

0.992

0.989

15m

0.984

0.983

0.980

20m

0.978

0.970

25m

0.969

0.966

0.960

Service Ref.

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 DB(°C)

TOTAL INPUT (RATIO) CAPACITY (RATIO)

INDOOR WB(°C)

22 20 18 16

Page 10

2) HEATING CAPACITY

Note CA:Capacity (W)

P.C.:Power consumption (kW)

Heating capacity correction factors

PLH-1.6KKHB.UK

PLH-2KKHB.UK

PLH-2.5KKHB.UK

Indoor intake

air

DB$C

15 20 25 15 20 25 15 20 25

Outdoor intake air WB$C

-10

CA 3,184 3,049 2,930 3,972 3,803 3,655 4,931 4,721 4,537

P.C.

1.03

1.11

1.18

1.58

1.71

1.81

1.59

1.71

1.82

-5

CA 3,650 3,506 3,364 4,552 4,373 4,196 5,651 5,429 5,209

P.C.

1.14

1.23

1.31

1.75

1.89

2.01

1.76

1.89

2.02

CA 4,160 4,003 3,844 5,188 4,993 4,795 6,441 6,198 5,952

P.C.

1.25

1.35

1.44

1.93

2.08

2.22

1.93

2.09

2.23

CA 4,714 4,538 4,370 5,880 5,661 5,451 7,299 7,027 6,767

P.C.

1.38

1.48

1.59

2.11

2.28

2.44

2.12

2.29

2.45

CA 5,312 5,112 4,942 6,625 6,376 6,165 8,225 7,916 7,653

P.C.

1.51

1.62

1.74

2.31

2.49

2.67

2.32

2.50

2.68

CA 5,952 5,724 5,560 7,424 7,139 6,935 9,216 8,863 8,609

P.C.

1.64

1.77

1.90

2.52

2.71

2.91

2.53

2.73

2.92

Service Ref.

Refrigerant piping length(one way)

30m

1.00

35m

0.998

40m

0.995

45m

—

0.993

50m

—

0.990

PLH-1.6KKHB.UK

PLH-2KKHB.UK

PLH-2.5KKHB.UK

1.00

10m

1.00

15m

1.00

20m

1.00

25m

1.00

Service Ref.

Heating 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

-12-10 -5 0 5 10 15 OUTDOOR WB($C)

INDOOR DB ($C)

15 20 25

25 20 15

TOTAL INPUT (RATIO) CAPACITY (RATIO)

Page 11

2. ELECTRICAL DATA

Indoor unit77220V 50Hz 1phase Outdoor unit7220V 50Hz 1phase

Indoor unit77230V 50Hz 1phase Outdoor unit7230V 50Hz 1phase

Indoor unit77240V 50Hz 1phase Outdoor unit7240V 50Hz 1phase

Indoor unit

Service Ref.

Outdoor unit

PLH-1.6KKHB.UK

PUH-1.6VKA

3.UK PUH-2VKA2.UK PUH-2.5VKA2.UK

PLH-2KKHB.UK

PLH-2.5KKHB.UK

Mode

Capacity (W)

Total Input (kW)

Input (kW)

Current (A)

Starting current (A)

Input (kW)

Current (A)

Starting current (A)

Outdoor unit Indoor unit

Indoor unit

Service Ref.

Outdoor unit

Mode

Capacity (W)

Total Input (kW)

Input (kW)

Current (A)

Starting current (A)

Input (kW)

Current (A)

Starting current (A)

Outdoor unit Indoor unitIndoor unitOutdoor unit

Cool

4,300

1.48

0.12

0.60

0.66

4,550[5,720]

1.40[2.57]

0.08[1.25]

0.41[5.75]

0.45[6.14]

1.36

6.79

PLH-1.6KKHB.UK

PUH-1.6VKA

Cool

4,350

1.54

0.14

0.62

0.68

4,600[5,890]

1.45[2.74]

0.09[1.38]

0.43[6.02]

0.47[6.39]

1.40

6.76

Heat

1.32

6.59

Cool

5,300

2.24

0.12

0.61

0.67

2.12

9.83

Heat

5,700[6,870]

2.22[3.39]

0.08[1.25]

0.42[5.76]

0.46[6.14]

2.14

9.93

PLH-2KKHB.UK

3.UK PUH-2VKA2.UK PUH-2.5VKA2.UK

Heat

1.36

6.57

Cool

5,350

2.29

0.13

0.63

0.69

2.16

9.78

Heat

5,750[7,040]

2.27[3.56]

0.09[1.38]

0.44[6.03]

0.48[6.39]

2.18

9.87

Cool

6,200

2.53

0.12

0.57

0.63

2.41

11.18

PLH-2.5KKHB.UK

Cool

6,250

2.57

0.13

0.59

0.65

2.44

10.94

Heat

6,900[8,660]

2.25[4.01]

0.09[1.85]

0.42[8.44]

0.46[8.79]

2.16

10.02

Heat

7,050[8,980]

2.29[4.22]

0.09[2.02]

0.43[8.82]

0.47[9.19]

2.20

9.86

Indoor unit

Service Ref.

Outdoor unit

Mode

Capacity (W)

Total Input (kW)

Input (kW)

Current (A)

Starting current (A)

Input (kW)

Current (A)

Starting current (A)

PLH-1.6KKHB.UK

PUH-1.6VKA

Cool

4,400

1.59

0.15

0.64

0.70

4,650[6,050]

1.51[2.91]

0.10[1.50]

0.45[6.28]

0.50[6.63]

1.44

6.74

PLH-2KKHB.UK

3.UK PUH-2VKA2.UK PUH-2.5VKA2.UK

Heat

1.41

6.60

Cool

5,400

2.34

0.14

0.65

0.72

2.20

9.86

Heat

5,800[7,200]

2.32[3.72]

0.10[1.50]

0.45[6.28]

0.50[6.63]

2.22

9.95

PLH-2.5KKHB.UK

Cool

6,300

2.60

0.14

0.61

0.67

7,200[9,300]

2.33[4.43]

0.10[2.20]

0.45[9.20]

0.50[9.55]

2.46

10.68

Heat

2.23

9.78

Page 12

Mode

Total

Electrical circuit

Refrigerant circuit

Indoor side

Outdoor

side

Capacity

Input

Indoor unit Service Ref.

Phase,Hz

Volts

Amperes

Outdoor unit Service Ref.

Phase,Hz

Volts

Amperes

Discharge pressure

Suction pressure

Discharge temperature

Condensing temperature

Suction temperature

Ref. pipe length

Intake air temperature

Discharge air temperature

Intake air temperature

SHF

MPa·G

DB$C

WB$C

DB$C

WB$C

PLH-1.6KKHB.UK

Cooling

4,400

1.59

PLH-1.6KKHB.UK

1,50

240

0.64

Heating

4,650

1.51

0.45

PLH-2KKHB.UK

Cooling

5,400

2.34

PLH-2KKHB.UK

1,50

240

0.65

Heating

5,800

2.32

0.45

PLH-2.5KKHB.UK

Cooling

6,300

2.60

PLH-2.5KKHB.UK

1,50

240

0.61

Heating

7,200

2.33

0.45

PUH-1.6VKA

3.UK

1,50

240

PUH-2VKA2.UK

1,50

240

PUH-2.5VKA2.UK

1,50

240

6.74

1.80

0.54

78.7

48.5

8.5

16.1

0.83

0.21

6.60

1.70

0.40

77.2

—

0.7

35.2

—

9.86

1.90

0.46

84.0

50.7

4.8

15.0

0.76

0.21

9.95

1.94

0.34

86.4

—

–1.8

39.4

—

10.68

1.95

0.50

82.8

51.8

6.7

13.8

0.75

0.14

9.78

1.71

0.36

76.0

—

–1.5

41.2

—

Service Ref.

(O/F·G)

(18.3)

(5.51)

(17.3)

(4.08)

(19.3)

(4.69)

(19.7)

(3.47)

(19.8)

(5.1)

(17.4)

(3.67)

High ceiling Standard

Air flow m3/min

Air speed m/sec.

Coverage range m

Air flow m

/min

Air speed m/sec.

Coverage range m

Total width of dischsrge outlets mm

PLH-1.6KKHB.UK

16.0

5.6

6.0

17.0

5.9

6.4

PLH-2KKHB.UK

16.0

5.6

6.0

17.0

5.9

6.4

PLH-2.5KKHB.UK

17.0

5.9

6.4

18.0

6.3

6.8

Service Ref.

3. STANDARD OPERATION DATA

4. OUTLET AIR SPEED AND COVERAGE RANGE

wThe 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.

The unit of pressure has been changed to Mpa on the international system of unit (SI unit system.) The converted score against the traditional unit system can be gotten according to the formula below.

1 (Mpa·G)=10.2(O/F·G)

Page 13

OUTLINES AND DIMENSIONS5

Unit : mm

Ceiling hole

Suspension bolt pitch

Suspension bolt M10 or

Air intake hole

Air outlet hole

Air intake grill

690~710 25~3525~35

640

660

466

460

66 35

760

117 117

117

435

13545

117

Ceiling hole

Suspension bolt pitch

Suspension bolt lower edge

Air outlet hole

690~710

25~35

65~80

760

460

466

6635

115

243

253

29330

- 2

507

660

Terminal block for control

Terminal block for

remote controller

Terminal block for

power supply

Drain hole

VP-25 connection

W3/8

Feeding hole

(Drain pump)

Leave space of 10~15mm between the

top surface of the unit and the ceiling slab.

Ceiling surface

4-Auto vanes

Intake grill opening/closing side

Vane motor

Decorative panel

Control wire entry

Refrigerant piping side

electric wire entry side

Power line entry

41 25

Liquid pipe

Gas pipe

Optional high-efficiency hilter

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

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

the electric wires.

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

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

installing the optional casement, the dimension between the transom

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

can also be installed.)

1 2

Refrigerant pipe {9.52

Flared connection 3/8F

Refrigerant pipe {15.88

Flared connection 5/8F

1.6/2/2.5KK

1. INDOOR UNIT PLH-1.6KKHB.UK PLH-2KKHB.UK PLH-2.5KKHB.UK

Page 14

Unit : mm (inch)

2. REMOTE CONTROLLER

130

Rear side wiring arrangement opening.

120

FILTER

CHECK MODE

TEST RUN

FILTER

CHECK MODE

TEST RUN

83.5

SW18

SW17

CAUTION

Page 15

WIRING DIAGRAM6

NOTES :

1. Since the indoor transformer (T)is connected with 240Vpower. If 220, 230v power is used. change the wiring connection showing fig: w2

When power supply is

2. Since the outdoor side electric wiring may change be sure to check the outdoor unit electric wiring for servicing.

3. Indoor and outdoor connecting wires are made with polarities. make wiring matching terminal numbers.

4. Symbols used in wiring diagram above are. / : Terminal block, : Connector.

5. Emergency operation

If remote controller or microcomputer fails but there is no other truble,. emergency operation is possible by setting dip switch (SW3<I.B>) on the indoor

controller board. [Check items] (1)Make sure that no other trouble exists the outdoor unit. Trouble with the outdoor unit prevents emergency operation.

(If any trouble exists the outdoor unit error code “P8”will be displayed on the remote controller and the trouble position will be shown on the outdoor controller

board LED. See electric wiring diagram of the outdoor unit for details.) (2)Make sure that there is no trouble with the indoor fan.

Emergency operation will be continuous run with the power ON/OFF (ON/OFF with the remote controller is not possible). [Emergency operation procedure] (1)Switch the fan connector on the indoor controller board from FAN 1 to FAN 2.

(2)Set the dip switch (SW3<I.B>) on the indoor controller board to 1 on and 2 off for cooling and 1 - 2 on for heating.

(3)Turn on the outdoor unit side circuit breaker, then the indoor unit side circuit breaker. (4)During emergency operation indoor fan runs at High speed but auto-vane does not work. (5)Thermostat will not function. Cold air blows out for defrosting during heating thus do not operate defrosting for a long time. (6)Emergency cooling should be limited to 10 hours maximum. (the indoor unit heat exchanger may freeze). (7)After every operation, switch the fan connector to FAN1, and set all dip switches (SW3<I.B>) to OFF. NOTE: If the drain water lift up mechanism is identified to be defective with the microcomputer doctor during cooling, do not use emergency operation

(it causes drain overflow)

fig:w2

240V

230V

220V

230V 220V

YELLOW ORANGE RED

SYMBOL NAME R.B

REMOTE CONTROLLER BOARD SW17<R.B> ADDRESS SELECTOR SW18<R.B> FUNCTION SELECTOR CN1<R.B>

PROGRAM TIMER CONNECTOR CN2<R.B>

REMOTE SWITCH CONNECTOR MV VANE MOTOR LS LIMIT SWITCH H2 DEW PREVENTION HEATER RT1

ROOM TEMP. THERMISTOR(0°C/15K1,25°C5.4K1) RT2

INDOOR COIL THERMISTOR(0°C/15K1,25°C5.4K1) T TRANSFORMER MF INDOOR FAN MOTOR C1 FAN MOTOR CAPACITOR TB2~6 TERMINAL BLOCK I.B INDOOR CONTROLLER BOARD

SYMBOL NAME CN2L<I.B>

LOSSNAY CONNECTOR

CN51<I.B>

CENTRALLY CONTROL CONNECTOR

FAN2<I.B>

EMERGENCY OPERATION CONNECTOR F.C<I.B> FAN PHASE CONTROL SW1<I.B> MODE SELECTOR SW2<I.B> ADDORESS SELECTOR SW3<I.B>

EMERGENCY OPERATION SWITCH SW5, SW7<I.B> MODEL SELECTOR SW6<I.B> TWIN, TRIPLE SWITCH SWA<I.B>

HIGH SEILING, NOISE SAVING SELECTOR SWB<I.B>

NUMBER OF AIR OUTLETS SELECTOR SWC<I.B> OPTION SELECTOR ZNR<I.B> VARISTOR X1<I.B>

DRAIN PUMP/D.HEATER RELAY

SYMBOL NAME X3<I.B>

VANE MOTOR RELAY

X4<I.B>

FAN MOTOR RELAY F1<I.B> FUSE (6.3A) LED1<I.B> DC 12V POWER LED LED2<I.B> DC 5V POWER LED CNP<I.B> DRAIN PUMP CONNECTOR CN50<I.B> DRAIN SENSOR CONNECTOR DP DRAIN PUMP DS DRAIN SENSOR H1 HEATER FS1,2 THERMAL FUSE 26H HEATER THERMAL SWITCH 88H HEATER CONNECTOR CNV<I.B> VANE MOTOR CONNECTOR

PLH-1.6KKHB·UK/PLH-2KKHB·UK/PLH-2.5KKHB·UK

2.5KK

2KK1.6KK

MODELS

SW7

OFF

fig:1

YLW

BLU

RED

BLU

RED

YLW

*PLH-1.6,2,2.5KKHB(with heater)

26H

1 2

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

L N

88H

TB2

FS1

FS2

HEATER CN24

88H

3 4

31 5

1234

31313131

Showing fig:1

12V POWER

LED1

5V POWER

LED2

X1X3

STD

SWC

SW7 SW3

1321

SWB

SWA

10987432165

4321

SW6

432165432

SW1

SW5

CN24

HEATER

OFF

SW2

RT2

RT1

CN51

CONTROL

CENTRALLY

DRAIN

CN50

CN41

POWER

REMOCON

CN40

INTAKE

CN20

PIPE

CN21

CN22

TO REMOCON

CN30

OUTDOOR

CN23

VANE

CN2L

LOSSNAY

OFF

TB6

SW17

SW18

CN1

CN2

BLU

TRNSMISSION WIRES DC12V

BRN

ORN

YLW

TRNSMISSION WIRES DC12V

OUTDOOR

UNIT

TB3

TB4

BLK WHT

RILL

BRN

CN4T

TRANS

11.1V AC

14.2V AC

BRN

RED

YLW

ORN

YLW

RED

BLU

RED

GRN/YLW

POWER SUPPLY

~(1PHASE)

220-240V 50Hz

220V 60Hz

TB2

YLW

RED

FAN2

ZNR

X1X3

F.C

TRANSPOWERD.U.M.VANEFAN

CNTCNDCNPCNVFAN1

BG79Y408H01

Page 16

REFRIGERANT SYSTEM DIAGRAM

Service port

Capillary tube

Indoor heat exchanger

Indoor coil thermistor (RT2)

Distributor with strainer

PLH-1.6 (O.D.3.2 ✕ I.D.1.6 –R 630) PLH-2.5 (O.D.3.2 ✕ I.D.1.8 –R 430)

wPLH-1.6 (O.D.3.2 ✕ I.D.1.8 –R 400)

PLH-2 (O.D.4.0 ✕ I.D.2.0 –R 430) PLH-2.5 (O.D.4.2 ✕ I.D.2.4 –R 1550)

PLH-2 (O.D.3.2 ✕ I.D.1.8 –R 630)

Restrictor valve

Refrigerant pipe (option)

9.52mm( 3.8") (with heat insulator)

Ball valve (with service port)

Indoor unit

Strainer

Refrigerant pipe (option)

15.88mm( 5/8") (with heat insulator)

Flexible tube

Flared connection

Ball valve

Strainer

4-way valve

Oil separator

Service port

High pressure control switch

High pressure protect switch

Outdoor unit

Outdoor heat exchanger

Flow of refrigerant (cooling) Flow of refrigerant (heating)

Outdoor coil thermistor (TH)

Bypass valve

Restrictor valve

Capillary tube

Strainer

Compressor

Accumulator

Refrigerant flow in cooling Refrigerant flow in heating

R.V.coil Heating ON Cooling OFF

PLH-1.6KKHB·UK/PUH-1.6VKA3·UK PLH-2KKHB·UK/PUH-2VKA

2·UK

PLH-2.5KKHB·UK/PUH-2.5VKA

2·UK

Unit : mm

Page 17

OPERATION FLOW-CHART

START

Power circuit

breaker

Check SW

ON twice

Operation SW

“OFF” timer

“ON” timer

STOP

Set time complete

NO NO

YES

PROTECTION DEVICE

SELF HOLD RELEASE

Remote controller indicator lamp OFF

Trouble STOP

Remote controller

operation display

Operating mode

(COOL)

Operating mode

(DRY)

Operating mode

(HEAT)

Operating mode

(FAN)

Auto COOL/HEAT

operation

COOL operation

DRY operation

HEAT operation

FAN operation

Trouble

PROTECTION DEVICE

SELF HOLD

Remote controller

trouble display

Indoor side

Outdoor side

Fan STOP

Auxiliary heater OFF

Compressor OFF

Fan STOP

Four-way valve OFF

MAIN OPERATION

w1 In addition, the centralized control and remote control can be operated. w2 The modes which indicate the sources of trouble are listed below.

● EO-Signal transmitting/receiving error

● P1-Room temperature thermistor malfunction

● P2-Indoor coil thermistor malfunction

● P4-Drain sensor malfunction

● P5-Drain overflow

● P6-Coil frost/overheat protection

● P7-System error

● P8-Outdoor unit trouble

w3 The CHECK swich will show if an error has occurred in the past. w4 Fan runs on low speed for 1 minute in order to remove overheat air. w5 The 3-minute (6 minutes …heating mode) time-delay functions after compressor stops. w6 FAN or AUTO mode is selected by the indoor dipswitch setting. w7 In FAN mode, fan speed and vane operation depend on the remote controller setting. (Compressor is OFF.)

Page 18

COOL operation

Four-way valve/OFF

Initial

COOLING

YESw8

YES

Vane initial

setting

Vane 55 deg downward angle 70 deg downward angle

Fan speed

LOW

Downward discharge

1 hour

Vane setting notch

Vane horizontal

airflow

Compressor

thermostat

Allowance

cancel

3-minute

time delay

6-minute

time delay

3-minute

compressor operation

Coil frost

prevention

Cooling area

10-minute

compressor operation

Allowance cancel

Coil frost protection

16-minute

compressor operation

Indoor pipe

temperature is

1$C or lower

Compressor ON

Coil frost

prevention

Compressor OFF

Indoor coil tempreature is 10$C or higher

3-minute

time delay

Coil frost

prevention release

Allowance

period

6 minute

time delay

Allowance set

1 min continue

Coil frost protection

FAN speed

LOW

FAN speed

LOW 5 min

elapse

Outdoor unit

trouble

w10

w11

COOLING OPERATION

w8 When operation stops or changes to cooling or dry mode, the auto vane tums to a horizontal angle. If operation changes

during auto vane SWING, the auto vane will continue to swing.

w9 When operating TEST RUN, the thermostat will be continuously ON. w10 After 3 minute compressor operation, if the indoor coil thermistor reads -15°C or below for 3 minutes, the compressor will

stop for 6 minutes.

w11 Cooling area : Indoor coil temperature is more than 5 degrees above the room temperature.

Heating area : Indoor coil temperature is more than 5 degrees below the room temperature. FAN area : Indoor coil temperature is within 5 degrees either way of the room temperature.

Page 19

HEATING OPERATION

AUTOMATIC COOLING/HEATING OPERATION

w15 ( i ) Until Low airflow is set while hot adjustment

(ii)While defrosting (FAN STOP) (iii)When thermostat is OFF In the case of( i ), (ii) and (iii) above, airflow is horizontal regardless the VANE setting.

w16 When AUTO operation is started, COOL or HEAT mode is selected automatically. w17 T1 : Room temperature.

To : Set temperature

Heat operation

Initial

HEATING

Vane setting notch

Vane initial setting

Defrosting

Four-way valve ON

Hor adjust in process

Compressor ON

Compressor

thermostat ON

Allowance cancel

Indoor piping

-15$C or lower

Outdoor unit

trouble

FAN SPEED

Very low airflow

Compressor OFF

Auto COOL/HEAT

operation

Initial mode

w17

1 T0

COOL mode HEAT mode

Type

OFF

YES

FAN setting notch

YES

w10

w11

Heating area

Defrost

30 min. elapse

YES

Outdoor unit trouble

Outdoor unit

trouble

YES

Defrost release

Indoor piping 55$C or lower

Auxiliary heater

Indoor piping

60$C or higher

YES

Auxiliary heater OFF

Overheat remote

Indoor unit

70$C or higher

Allowance

Overload protect

START

period

YES

Auxiliary heater

thermostat ON

Auxiliary heater ON

6-minute restart

Allowance set

Compressor OFF

prevention

YES

35$C or higher

FAN SPEED

setting nitch

Hot adjust

w15

YES

3 min.restart

prevention

YES

w16

YES

NO > =

YES

6 min. restart

prevention

Hot adjust start

FAN SPEED very low

Compressor ON

compressor

Allowance cancel

Heating

FAN STOP

w11

Airflow area

20 min.elaspe

YES

Airflow area Heating area

w11

Airflow area Cooling area

Defrost operation

Four-way valve

10-minute

operation

YES

area

YES

START

OFF

Indoor piping

HOT adjust

6 min. elapse

YES

Low

FAN SPEED

Low 2 min.

elapse

YES

release

PLH-KKHB

3-minute

Auxiliary heater

Indoor coil

thermstor is 60$C

or higher

FAN speed

Low notti

Airflow 10% up

<(T0-2)

YES

1>(T0 + 2)

YES

After 15min.

T1>(T0 + 2)

HEAT operation

YES

Cool mode

set

COOL mode

1 < (T0 - 2)

After 15min.

COOL operation HEAT operation

Page 20

w8—9 Refer to page 26~27. w12 When room temperature is 18°C or below, the compressor cannot operate.

When room temperature rises over 18°C, the compressor starts after a 3-minute time delay.

w13 Compressor ON time is decided by room temperature. Refer to page 26~27 . w14 In dry operation, compressor ON makes the fan speed LOW and compressor OFF stops the fan.

It is not possible to set the fan speed with the remote controller

DRY OPERATION

DRY

operation

Four-way valve / OFF

Initial dry

operation

Room tempereature is

18°C or lower

During

compressor ON

Compressor &

thermostat ON

Vane initial setting

Vane

setting notch

10-minute compressor

OFF timer start

Compressor OFF

Fan STOP

3-minute

time delay

10-minute

compressor

OFF

Compressor ON

time set

Compressor ON

Fan speed LOW

Compressor &

thermostat

3-minute

compressor

operation

Compressor ON

time completes

YES

Page 21

MICROPROCESSOR CONTROL

● Compressor and outdoor fan : ONOFF

● Operation mode change :COOLHEAT.

1.OUTLINE OF MICROPROCESSOR CONTROL

● OFF-ON switching.

● COOL/DRY-AUTO-HEAT selector switching.

● Thermostat setting.

● TIMER mode selector-switching and Timer

setting.

● HIGH-LOW fan speed switching.

● AUTO Vane selector (AIR DISCHARGE)

switching.

● TEST RUN switching.

● CHECK mode switching.

(Self diagnostic trouble shooting)

● Room temperature thermistor (RT1)

● Indoor coil thermistor (RT2)

● Drain sensor

● Autovane’s angle setting.

● Booster heater ON-OFF Control.

● Drain pump : ON-OFF.

● Emergency stop.

● Compressor

protectiondevice working

● Defrosting START-STOP

● Fan speed control.

● Crankcase heater control

ON-OFF.

● Self diagnostic function

Independent Control of Outdoor Unit

OUTPUT to indoor unit

INPUT from indoor unit

INPUT to remote controller

Remote controller board

● Processes and transmits orders.

OUTPUT to remote controller

Indoor controller board

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

● Processes orders and data.

● Controls indoor and outdoor operation.

● Self diagnostic function.

w System control operation. w Emergency operation. w Set by dipswitch on indoor controller board.

● Transmits the power to remote controller.

OUTPUT to outdoor unit

12VDC

Non-polar, two-wire cable maxinmum length 500 meters

Signal

Remote controller

● LCD indicator

Polar three-wire cable

12VDC

123

1 2 3

Indoor unit

Outdoor unit

FILTER

CHECK MODE

TEST RUN

240KA

Page 22

2. INDOOR UNIT CONTROL

2-1COOL operation

(1) Compressor control

1 3-minute time delay

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

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

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

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

To prevent indoor coil frost, the compressor will stop when the indoor coil thermistor (RT2) reads 1: or below after the compressor has been continuously operated for at least 16 minutes or more. When the indoor coil temperature rises to

10: or above, the compressor will start after a 3-minute time delay. NOTE : By turning OFF the dipswitch SW1-5 on indoor controller board, the start temperature of coil frost prevention

changes from 1: to -3:.

1 Press POWER ON/OFF button.

Press the button to display “ ”

Press the TEMP button to set the desired temperature.

NOTE: Set temperature changes 1°C when the or

button is pressed one time. Cooling 19 to 30°C

Minimum 3 minutes w1

Thermostat

Indoor fan

Auto vane

Drain pump

Booster heater

Compressor

LOW or HIGH

Initally 30 degrees

(Changeable by remote controller setting)

LOW or HIGH

OFF

discharge position

3 minutes

OFF

Operation starts by POWER button ON.

Operation stops by POWER button OFF.

Room temperature becomes equal to set temperature.

Room temperature rises above set temperature.

air flow position

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

FILTER

CHECK MODE

TEST RUN

240KA

Page 23

5 Coil frost protection

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

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

Compressor stops for 6 minutes,and then restarts. lf the start condition is satisfied again during the first 10 minutes of compressor operation,both the indoor and outdoor units stop,displaying a check code of“P8”on the remote controller.

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

(2) Indoor fan control

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

When the outdoor unit abnormality detection is released and the fan speed returns to the set speed, the quiet cycle control will work. (a) Normal control

( i ) Fan speed LOW/HIGH depends on the remote controller setting regardless of the thermostat ON/OFF. (ii) Fan speed will remain on LOW if an abnormality in outdoor unit is detected. (5 minutes)

When the abnormality detection is released, the fan speed returns to the set speed.

1 Start-up of outdoor unit abnormality

detection.

2 Release of outdoor unit abnormality

detection.

3 Unit stop due to outdoor unit abnormality

with P8 indication.

NOTE 1 : Fan stops immediately if the unit stops or the check mode is started.

5 minutes

SET

LOW

5 minutes

SET

LOW

OFF

Page 24

(3) Auto vane control

Auto vane position is set to 35degrees airflow at the start-up of COOL operation. It can then be changed by the remote controller.

(a) Stop mode (fixed operation) ( i ) At start-up of COOL operation, the auto vane is set to 10 degrees air flow direction. ( ii ) Airflow direction can be changed with botton.

(b) SWING mode ( i ) The vane motor turns ON when the SWING mode is selected.

The vane motor is continuously ON during SWING mode.

When 55 degrees or 70 degrees air flow is selected with the LOW fan speed in COOL operation, “AUTO RETURN” will appear below the temperature display. One hour later, the air flow direction returns to 30 degrees automatically and “AUTO RETURN” will disappear. If the air flow direction is set to 30 degrees during “AUTO RETURN” indication, the time counting for AUTO RETURN is cancelled.

1 Fan speed : LOW

2 Fan speed : HIGH

30°

55°

70°

30°

55°

70°

SWING

(SW5-3:OFF/ON)

45°

AUTO RETURN AUTO RETURN

1 Fan speed : LOW

2 Fan speed : HIGH

Page 25

<Auto vane drive> (a) The auto vane is driven by a 2.5 rpm motor. (b) Airflow direction can be selected between the No.1 and No.2 setting. (Initial setting is No.1)

(d) Airfiow direction is based on the horizontal position detected by the vane motor limit switch. When the horizontal

position can not be determined, the vane motor will remain ON until it is determined.

1 If the horizontal position still can not be detected, despite the 10minute detection, the vane motor will turn OFF.

Remote controller indication continues.

2 After, if the vane motor receives the “auto vane ON” command again, it will restart detecting the horizontal position.

If the horizontal position still can not be determined, despite the 10-minute detection, the vane motor will turn OFF.

(4) Detecting abnormalities in the outdoor unit

After the compressor has been continuously operated for 3 minutes, if the difference between the indoor coil temperature and room temperature is out of RANGE C for 1 minute, the indoor fan speed will turn to LOW. Five minutes later, if the difference is still out of RANGE C,the outdoor unit is functioning abnormally. Thus, the compressor stops and check code “P8” appears on remote controler. RANGE A : Indoor coil temperature is more than 5 degrees above room temperature. RANGE B : Indoor coil temperature is within 5 degrees either way of room temperature. RANGE C : Indoor coil temperature is more than 5 degrees below room tempetature.

30°

45°

55°

70°

50Hz

Airflow direction change

Downward C → Horizontal 4→1

Rise

Horizontal → Downward A 1→2

2.4

Downward B → Downward C 3→4

2.3

Downward A → Downward B 2→3

1.3

Indoor coil temperature minus room temperature

-5

RANGE A

RANGE B

RANGE C

(degree)

(5) Drain pump control

The drain pump works in COOL or DRY operation. When operation stops or changes to HEAT mode, the drain pump continues to operate for 3 more minutes. The drain pump does not work in check mode.

When both the drain pump and unit are operating, the drain sensor detects the temperature. This temperature tells whether the drain water level is above or under the drain sensor. If the drain water level rises above the drain sensor due to a drain pump malfunction, the unit will stop operating in order to prevent drain from overflowing. The check code “P5” on the remote controller will display this occurrence. When both of the following conditions are satisfied, the drain sensor is determined to be under water.

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

● The drain sensor temperature is below 63°C.

(6) Dew prevention heater

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

Unit : sec

Page 26

Minimum 3 minutes w1

Thermostat

Indoor fan

Auto vane

Drain pump

Booster heater

Compressor

LOW speed

Initally 30 degrees discharge

(

Changeable by remote controller setting

)

LOW speed

OFF

discharge position

3 minutes

OFF

Operation starts by POWER button ON.

Operation stops by POWER button OFF.

Room temperature becomes equal to set temperature.

Room temperature rises above set temperature.

discharge position

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

2-2 DRY operation

(1) Compressor control

13-minute time delay

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

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

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

3The compressor stops in check mode or during protective functions.

FILTER

CHECK MODE

TEST RUN

240KA

1 Press POWER ON/OFF button.

2 Press the button to display “ ”

3 Press the TEMP button to set the desired temperature.

NOTE: The set temperature changes 1°C when the or

button is pressed one time.

Heat 19 to 30°C

Page 27

Dry mode

EXTRA-LOW speed

LOW speed

Fan operationIndoor coil temperature

Below -10°C

-10 to 0°C Above 0°C

4The compressor will not start when the room temperature is below 18°C.

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

● If the room temperature thermistor reads above 28°C with thermostat ON, the compressor will operate for 6 more

minutes and then stop for 3 minutes.

● If the room temperature thermistor reads 26°C~28°C with thermostat ON, the compressor will operate for 4 more

minutes and then stop for 3 minutes.

● If the room themperature thermistor reads 24°C~26°C with thermostat ON, the compressor will operate for 2 more

minutes and then stop for 3 minutes.

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

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

5Coil frost protection

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

6Coil frost prevention

Coil frost prevention does not operate in DRY operation.

(2) Indoor fan control

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

● When the indoor coil temperature is 6°C or above, the indoor fan will stop.

● When the indoor coil temperature is below 6°C, the indoor fan will run in DRY mode.

(b)During compressor ON

● The indoor fan runs on EXTRA-LOW speed for the first 1 minute after the compressor is turned on.

● After, the indoor fan runs in DRY mode.

The fan notch is controlled by the indoor coil temperature every 30 seconds.

During compressor OFF, when the indoor coil temperature becomes 6°C or above, the indoor fan turns OFF immediately.

(3) Auto vane & drain pump controls

Same as in COOL operation

(4) Detecting abnormalities in the outdoor unit

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

Page 28

2-3 HEAT operation

Depends on remote controller setting

Horizontal Horizontal

Minimum 3 minutes w 2

Thermostat

Indoor fan

Auto vane

Drain pump

Booster heater

Compressor

Power ON lamp

STAND BY lamp

LOW or HIGH

Extra LOW w1 LOW

LOW or HIGH

OFF

Hot adjustrment Hot adjustrment

OFF

Operation starts by POWER button ON.

Operation stops by POWER button OFF.

Room temperature becomes equal to set temperature.

Room temperature rises above set temperature.

Extra LOW w1

1 Changeable by indoor dipswitch SW1-7 and SW1-8.

OFF---during thermostat OFF

hot adjustment defrosting

From POWER ON until

warm begins to blow

w2 Even if the room temperature falls below the set temperature during this period, the compressor will not start until this period has ended.

FILTER

CHECK MODE

TEST RUN

240KA

1 Press POWER ON/OFF button. 2 Press the button to display “ ”

3 Press the TEMP button to set the desired temperature.

NOTE: The set temperature changes 1°C when the or

button is pressed one time.

Heat 17 to 28°C

[DEFROST]

The [DEFROST] symbol is displayed during the defrost operation.

[STAND BY]

The [STAND BY] symbol is displayed from the time the heating operation starts until the heated air begins to blow.

Page 29

(1) Compressor control

13-minute time delay

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

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

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

3The compressor stops in check mode or during protective functions. 4Overheat protection

When the indoor coil thermistor reads 70°C or above, the overheat protection will start.

The compressor stops for 6 minutes, and then restarts. If the start condition is satisfied again within 10 minutes of compressor operation, both the indoor and outdoor units stop, displaying a check code of “P6” on the remote controller.

Overheat protection is terminated when the start condition is not satisfied again during the allowance (10-minute compressor operation), when operation mode changes to other mode, or when thermostat turns OFF.

(2) Indoor fan control

(a) Normal control

( i )The indoor fan runs on EXTRA-LOW speed during the thermostat OFF.

EXTRA-LOW speed can be changed to LOW or HIGH speed by setting the dipswitch SW1-7 and SW1-8, If the indoor coil temperature becomes more than 5 degrees below the room temperature during the thermostat OFF, the indoor fan will stop. After, when the indoor coil temperature becomes within 5 degrees of room temperature, the indoor fan will run on EXTRA-LOW speed.

( ii )Hot adjustment

Hot adjustment is a warm-up for HEAT operation <Start conditions> The hot adjustment works under any of the follwing conditions.

● HEAT operation starts.

● Defrosting ends.

● Thermostat turns ON.

<Hot adjustment> Initially, the indoor fan runs on EXTRA-LOW speed. When 5 minutes have passed or the indoor coil temperature exceeds 35°C, the fan speed changes to LOW. Two minutes later, the hot adjustment ends. Then, the fan speed

depends on the remote controller setting. (iii)The indoor fan stops when the indoor coil temperature is within 5 degrees either way of room temperature. (iv)To eliminate the remaining heat, the indoor fan runs for the first 1 minute after the booster heater is turned OFF.

(3) Auto vane control

(a) STOP mode (fixed operation)

( i ) The airflow direction at the start-up of HEAT operation is the same as that of the previous operation. ( ii ) The airflow direction can be charged by the remote controller setting.

In the following cases, air flow direction becomes 30° regardless of the remote controller setting.

1 During the hot adjustment with fan speed at EXTRA-LOW 2 During defrosting within door fan OFF 3 During the thermostat OFF

(b) SWING mode

( i ) The vane motor turns ON when the SWING mode is selected.

The vane motor is continuously ON during SWING mode.

( ii ) In the following cases, the air flow direction is 30 regardless of the remote controller setting.

1 During the hot adjustment with fan speed at EXTRA-LOW 2 During defrosting with indoor fan OFF 3 During thermostat OFF

30°

45° 55°

70°

SWING

(SW5-3 : OFF/ON)

Page 30

Indoor coil temperature minus room temperature

-5

RANGE A

RANGE B

RANGE C

(degree)

Fig.1

(4) Booster heater control

When the room temperature is 3 degrees below the set temperature, the booster heater will turn ON. When the room temperature is equal to the set temperature, booster heater will turn OFF. During the hot adjustment, the booster heater will not work.

When the indoor coil thermistor rises to 60°C or above, the booster heater cannot work. When the indoor coil thermistor falls to 55°C or below, the booster heater can work.

(5) Detecting abnormalities in the outdoor unit

When the outdoor unit is determined to be abnormal by the following causes, the compressor will stop and the check code “ P8 ” will appear on the remote controller display.

1 During compressor ON after hot adjustment W1 (See the next page.)

1 If the difference between the indoor coil temperature and room temperature is in the RANGE B, the indoor fan will

stop. 2 Within 20 minutes after entering RANGE B (except for the first 10 seconds), a) If the temperature difference enters RANGE A, the hot adjustment stasrts, b) If the temperature difference is still in RANGE B, the outdoor unit is deemed abnormal. c) If the temperature difference enters RANGE C, defrosting starts.

Within 20 minutes after entering RANGE C,

●If the temperature difference does not return to RANGE B,the outdoor unit is deemed abnormal.

●If the temperature difference returns to RANGE B, the next 20 minutes is an allowance period. If the difference enter

RANGE A during the allowance, defrosting ends and the hot adjustment starts. If the difference does not enter RANGE A during the allowance, the outdoor unit is deemed abnormal.

2 During compressor ON in hot adjustment

After 30 minutes of defrosting in hot adjustment, if the temperature difference is still in RANGE C, the outdoor unit is determined to be abnormal.

3 During compressor OFF

After 20 minutes of thermostat OFF, if the indoor coil thermistor reads -25°C or below, the outdoor unit is determined to be abnormal.

(6) Indoor coil thermistor abnormality detection

An abnormality can be detected during compressor ON, except for the following.

●For the first 30 minutes after the temperature difference between the indoor coil temperature and room temperature enters the RANGE C.(See the below figure 1.)

●When the temperature difference enters the RANGE C until it moves to the RANGE B.

(7) Defrosting operation

After the outdoor unit starts the defrosting operation, when the temperature difference beetween the indoor coil temperature and room temperature gets out of RANGE A and into RANGE B, the indoor unit starts the defrosting mode. After the outdoor unit stops the defrosting operation, when the temperature difference returns to the RANGE A, the indoor unit stops the defrosting mode. While the indoor unit is in the defrosting mode, the indoor fan and the booster heater stop.

w1 RANGE A : Indoor coil temperature is more than 5 degrees above room temperataure.

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

Page 31

2-4 AUTO operation (Automatic COOL/HEAT change over operation)

(1) Initial mode

1 When AUTO operation starts after unit OFF.

● If the room temperature is higher than the set temperature, operation starts in COOL mode.

● If the room temperature is equal to or lower than the set temperature, operation starts HEAT mode.

2 When AUTO operation starts after COOL or HEAT operation, the previous mode continues.

(2) Mode change

1 HEAT mode changes to cool mode when 15 minutes have passed since the room temperature became 2 degrees

above the set temperature.

2 COOL mode changes to HEAT mode when 15 minutes have passed since the room temperature became 2 degrees

below the set temperature.

(3) Temperature range

AUTO operation is available under the outside air temperatures as follows.

1Mode change (HEAT COOL)

When room temperature becomes2degrees above the set temperature, the operation mode can not be changed for 15 minutes.

(degree)

To +2

To:Set temperature (19 28 )

To +1

To - 1

To - 2

Compressor

Start

HEAT mode HEAT mode

2Mode change

15 minutes

Minimum 3 minutes

15 minutes

Minimum 3 minutes

COOL mode

(COOL HEAT)

ON OFF

-9 0 1020304046

-8.5

Cooling range

(Outside air temperature)

Heating range

-5

FILTER

CHECK MODE

TEST RUN

240KA

1 Press POWER ON/OFF button.

Press the button to display “ ”

Press the TEMP button to set the desired temperature.

NOTE: The set temperature changes 1°C when the or

button is pressed one time.

Automatic 19 to 28°C

●“AUTOMATIC” works to change by itself the operation mode either to cooling or heating according to the room temparature.

Page 32

To change the air flow direction, press button.

NOTE: Airfiow direction can be set by the indoor dipswitch SW5-1.

(1) COOL/DRY operation

At the start-up of COOL or DRY operation, the air flow direction in automatically set to 30°. After, it can be changed to another direction with button on the remote controller.

When 55° or 70° airflow is set with fan speed in LOW, “AUTO RETURN” appears below the room temperature display. One hour later the direction changes to 30° degrees, automatically and “AUTO RETURN” disappears.

(2) HEAT operation

At the start-up of HEAT operation, air flow direction depends on the setting of the last operation. After, it can be changed to another direction with button. The airflow direction shifts to 30° regardless of the remote

controller settings under any of the following conditions.

● Thermostat OFF

● Defrosting

● Indoor fan speed EXTRA-LOW in hot adjustment

Available in COOL operation with fan speed on HIGH or in HEAT operation. Unavailable in DRY operation. If fan speed changes from LOW to HIGH during 45° downward discharge in COOL mode, the direction automatically changes to 30°.

30$

45$

55$

60$

swing

2-5 Auto vane control

FILTER

CHECK MODE

TEST RUN

240KA

Changes by pressing the button.

Page 33

AUTO STOP ·········The air conditioner stops after the set time lapses. AUTO START ········The air conditioner starts after the set time lapses. TIMER OFF ··········Timer is not active.

1. Press POWER ON/OFF button.

2. Press “ ” button to select AUTO STOP or AUTO START.

3. Press “ ” button to set desired time. Time setting is in 1 hour units for up to 24 hours.

Each time HOURS button is pressed, set time increases by 1 hour. When HOURS button is pressed and held, the set time increases by 1 hour every 0.5 seconds.

4. To cancel the timer operation, press POWER ON/OFF button.

2-7 Test run <Before test run>

● After installing, wiring, and piping the indoor and outdoor units, check for refrigerant leakage, looseness in power supply or contorol wiring, and mistaken polarity.

● Use a 500-volt megger to check the resistance between the power supply terminal block and ground to make sure that it is at least 1.0M1.

Attention: Do not use the air conditioner if resistance is less than 1.0M1.

This setting will stop the air conditioner in 8 hours. With the lapse of time, time display changes in 1 hour units, showing remaining time.

2-6 TIMER operation

OFF

TEST RUN button

TEST RUN

Indoor coil temperature code

Display

FILTER

CHECK MODE

TEST RUN

240KA

Remote controller

Turn on main switch.12 hours before proceeding to step 2 to allow

for crankcase heater operation.

Push the TEST RUN button twice and indication of TEST RUN will

be shown on the liquid crystal display.

Push button LOW/HIGH to check that the fan speed changes

properly.

After the check is finished leave the test run mode,push the power

ON/OFF button.

It can also be stopped by pushing the timer MODE button.

Check the operation of outdoor unit fans.This unit controls the

rotation speed and performance capacity of fans.ln some cases,it may rotate at low speed as the condition of outside air requires and the speed will be kept unless the performance has become deficient.

Therefore,when the condition of outside air demands,there may be

such cases as the fan stops or rotates reversely.

Please note that these symptoms are not mulfunction.

Press the button to display ,COOL/DRY(or HEAT)to

confirm that cool (or warm)air is blown out.

(At heating operation,there may be a short delay before warm air

begins to blow out.)

*The above figure shows the state of TEST RUN at cooling operation.

●When a TEST RUN is started,the timer shall be set to 2 hours. The unit will automatically turn off after 2 hours.

FILTER

CHECK MODE

TEST RUN

240KA

Page 34

(1) Indoor coil temperature code

During the test run, the indoor coil temperature code from 1 to 15 is displayed on the remote controller instead of room temperature. The code should fall with the lapse of time in normal COOL operation, and should rise in normal HEAT operation.

(2) Trouble during test run

● If the unit malfunctions during the test run, refer to section 10 in this manual entitled “TROUBLESHOOTING.”

● When the optional program timer is connected to the conditioner, refer to its operating instructions.

2-8 Emergency operation

When the remote controller or microprocessor malfunctions but all other parts are normal, emergency operation is started by setting the dipswitch SW3 on the indoor controller board.

1. Make sure the compressor and the indoor fan are operating normally.

2. Locate the defect with the self-diagnostic function. When the self-diagnostic function indicates “protective function is working”, release the protective function before starting the emergency operation. CAUTION: When the self-diagnostic function indicates a check code of “P5” (drain pump malfunction), DO NOT start

the emergency operation because the drain may overflow.

1. For emergency cooling, set the dipswitch SW3-1 to ON and SW3-2 to OFF. For emergency heating, set the dipswitch SW3-1,2 to ON.

~30$C

~90$C

~35$C

Thermistor

abnormality

~40$C

~20$C

~60$C

~25$C

~70$C

~15$C

~55$C

Indoor coil

temperature

Code

Indoor coil

temperature

-40~1$C 9

~45$C

~10$C

~50$C

Code

2. Turn ON the outdoor unit breaker and then ON the indoor unit breaker. Emergency operation will now start.

3. During emergency operation, the indoor fan operates on high speed, but the swing louvers and the auto vanes do not operate.

4. To stop emergency operation, turn OFF the indoor unit breaker.

NOTE: The remote controller POWER ON/OFF button can not start/stop emergency operations.

CAUTION: Do not use emergency cooling for more than 10 hours, as the indoor coil may freeze.

1 ON

1.2 ON

1.2 OFF

Emergency cooling

Emergency heating

Normal operation

Microcessor board

Page 35

2-9 Interlock with ventilation system (LOSSNAY)

Mr. SLIM/LOSSNAY interlock operation is available by using the optional parts listed below.

(1) System organization

NOTE: For further information, refer to the

LOSSNAY technical & service manual.

(2) LOSSNAY models connectable to Mr. SLIM are : LGH-15RS-E, LGH-50RS-E

LGH-25RS-E, LGH-80RS-E LGH-35RS-E, LGH-100RS-E

(3) Reqired parts are:

● Relay box (PZ-12RB-E)…Contact capacity 10A

● Remote display adapter (PAC-SA88HA-E)…An optional part for Mr. SLIM

● LOSSNAY control switch (PZ-05SLB

2-E)

…

For LOSSNAY individual operation

(4) Operation

1LOSSNAY turns ON/OFF according to Mr. SLIM ON/OFF 2While Mr. SLIM is OFF, LOSSNAY individual operation is available by using the LOSSNAY control switch.

When Mr. SLIM turns OFF with the LOSSNAY control switch at ON, LOSSNAY will continue to operate.

(5) Wiring.

Relay box

Relay box (PZ-12RB-E)

LOSSNAY

LOSSNAY control switch (PZ-05SLB

2-E) LOSSNAY control switch

(PZ-05SLB

2-E)

Mr. SLIM

Remote controller

Remote display adapter (PAC-SA88HA-E)

Power supply

2When the LOSSNAY control switch is not used:1When the LOSSNAY control switch is used

Remote controller

Insulation is needed

10m

Connecting wire

0.13mm or over

Connecting wire solid wire,

1.6 or 2.0 (field supplied)

Circuit breaker (field supplied)

Power supply

50Hz 220 240V

N L

PL N

HIGH

LOSSNAY control switch (PZ-05SLB

LOW

DAMPER

2-E)

Mr. SLIM

Indoor controller

board

Connector

CN51

GRN

ORN

YLW

RED

BRN

Power supply for Mr. SLIM 220 240V AC

Relay box

(PZ-12RB-E)

YLW

ORN

RED

WHT

RED

HIGH

WHT

LOSSNAY

Terminal block

6 2

ORN

LOW

RED

HIGH

WHT

RED

DAMPER

ORN

DAMPER

WHT

Junction box (field supplied)

Relay box

(PZ-12RB-E)

Terminal block

A B L N HIGH N

Mr.SLIM CN51 12V DC

Power supply 220 240V AC

Circuit breaker

LOSSNAY

Terminal block

ORN

LOW

RED

HIGH

WHT

RED

DAMPER

ORN

DAMPER

WHT

Page 36

2-10 Dip switch functions

Each figure shows the initial factory setting.

1 On remote controller board

(1) SW17(Address selector)

SW17-1~6) For address setting SW17-7) When two remote controllers are used,this switch sets the controller function.

OFF:The remote controller is set as a main controller. ON:The remote controller is set as a sub controller.

SW17-8) Switch for system back-up

OFF:Without back-up ON:With back-up

(1) SW18(Function selector)

SW18-1) Switch for timer

OFF:Single day ON:timer every day

SW18-2) Switch for filter sign

OFF:filter sign adsent ON:filter sign present

SW18-3) Switch for filter sign time setting.

OFF:100Hr ON:2500Hr

SW18-4) Not yet used.

2 On indoor controller board

(1) SW1 (Mode selector)

SW1-1) Switch that changes between FAN mode and AUTO mode

OFF:Fan mode for models without heat pump ON: AUTO mode for models with heat pump

SW1-2) Switch for auto vanes

OFF:Unit without auto vanes ON: Unit with auto vanes

SW1-3) Switch for drain pump

OFF:The drain pump works in only COOL operation. ON: The drain pump works in both COOL and HEAT operation.

SW1-4) Switch to change the temperature to start coil frost prevention

OFF:–3°C(For previous special models) ON: 1°C(For all current models)

SW1-5) Switch for set temperature adjustment in HEAT mode

During HEAT operation, warm air collects near the ceiling. When the indoor unit is installed near the ceiling, the temperature read by room temperature thermistor differs from the actual living-space temperature by about 4 degrees. Therefore, the room temperature read by room temperature thermistor must be lowered by 4 degrees. OFF:4-degree adjustment ON: NO adjustment

SW1-6) Switch for fan speed during thermostat OFF in HEAT operation

OFF:EXTRA LOW ON: LOW

SW1-7) Switch for fan speed during thermostat OFF in HEAT operation

OFF:EXTRA LOW or LOW(set with SW1-6) ON: LOW or HIGH(set with remote controller)

SW1-8) Switch for detecting abnormalities in the outdoor unit abnoamality detection

OFF:When an abnormality occurs, it is detected. ON: Even if an abnormality occurs, it can not be detected.

SW1-9) Switch for auto restart function

OFF:This function does not work. ON: This function works.

1 2 3 4 5 6 7 8

ON OFF

1 2 3 4

ON OFF

1 2 3 4 5 6 7 8 9 0

ON OFF

Page 37

(3) SW3 (Emergency operation switch)

1 2

Normal operation

ON OFF

1 2

For emergency cooling

ON OFF

1 2

For emergency heating

ON OFF

(4) SW5 (Model selector)

(2) SW2 (Address selector)

1 2 3 4

ON OFF

SW5-1) Not for use. SW5-2) OFF:For models with heat pump

ON:For models without heat pump SW5-3) Not for use. SW5-4) This switch is unavailable for PLH-KK(H)V. Keep this switch at OFF.

(5) SW6 (Twin,Triple selector)

1 2 3 4

ON OFF

Single control Twin control Triple control SW6-1 OFF ON(Twin NO.1) ON(Triple NO.1) SW6-2 OFF ON(Twin NO.2) ON(Triple NO.2) SW6-3 OFF OFF ON(Triple NO.3) SW6-4 OFF OFF ON

(6) SW7 (Model selector)

Switch to set the output of phase-controlled indoor fan motor. Address setting is available at any time. The initial factory setting by is based on each capacity.

Service Ref.

SW7

PLH-1.6KKHB·UK PLH-2KKHB·UK

PLH-2.5KKHB·UK

1 2 3

ON OFF

1 2 3

ON OFF

(7) SWA (High seiling, noise saving selector)

High ceiling 2 High ceiling 1 Standard

(8) SWB (Air outlet number selector)

(Not used)

3-direction airflow 4-direction airflow (Standard)

(9) SWC (Option selector)

Option

Standard

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

SWA

4-direction airflow 3-direction airflow

Standard

2.4

2.7

High ceiling ➀

2.7

3.0

High ceiling ➁

3.0

3.3

Ceiling height & airflow direction

(Unit : m)

SWB

1 2 3 4 5 6

ON OFF

Used in setting the unit-address for group control. For further information,refer to page 53.

Page 38

PLH-1.6KKHB·UK

PLH-2KKHB·UK

PLH-2.5KKHB·UK

Voltage

[V] 220 230 240 220 230 240 220 230 240

100% rotational frequency (rpm)

50Hz

586 608 629 586 608 629 611 634 657

Service Ref.

2-11. INDOOR FAN CONTROL

(1)Fan motor max. rotational frequency for PLH-KKHB

(2)Indoor fan relay output

(a)During fan ON

The indoor fan relay turns ON. One second later, the phase control will start.

(b)During fan OFF

The phase control turns OFF. One second later, the indoor fan relay will turn OFF.

Page 39

3. OUTDOOR UNIT CONTROL

3-1 Outdoor fan control

The rotational frequency of outdoor fan is phase-controlled according to the outdoor coil temperature. This control allows the cooling operation even with the low outside-air temperature and the heating operation even with the high outside-air temperature.

3-2 Outdoor unit control

The outdoor unit turns ON/OFF the cooling/heating operation according to orders given from the indoor unit.

3-3 Protective functions

1 If an reversed-phase, an open phase, or an indoor controller abnormality is detected, the outdoor unit will stop operation

and the check mode will start. (For the check mode details, see page 49.)

2 If a protective function works, the compressor will stop running. Three minutes later, the compressor will restart. If the

protective function works again, the compressor will stop running and the check mode will start.

3 The protective function is memorized. 4 The memory is cleared when the [ON/OFF button on the remote controller is turned OFF. However, the check mode

display continues until the outdoor unit receives the “operation ON” command from the indoor unit.

3-4 COOL/HEAT operation time chart

10 minutes 1

Thermostat

Outdoor fan

4-way valve (COOL)

4-way valve (HEAT)

Bypass valve

Compressor

Crankcase heater (with jumper wire J3)

Crankcase heater (without jumper wire J3)

OFF

ON OFF

60 minutes 60 minutes 60 minutes 60 minutes 60 minutes

3 minutes

10 minutes

3 minutes

Repeats 60-minute ON/OFF

60 minutes

Operation starts by POWER button ON.

Operation stops by POWER button OFF.

Room temperature becomes equal to set temperature.

Room temperature becomes different from set temperature.

w1 If compressor restarts within 10 minutes, 4-way valve remains ON.

Page 40

(1) Start conditions

A. When all of the following conditions are satisfied, defrosting will start. However, when the bypass valve turns OFF,

defrosting starts 10 minutes later.

(a) More than seven minutes have passed since the compressor start-up. (b) The outdoor coil thermistor reads -5°C or below. (c) The outdoor fan motor output step is 100% (d) Total time of compressor operation exceeds 30 minutes, and the outdoor coil temperature has fallen by 8 degrees or

more in comparison with that of 10 minutes after the compressor start-up.

NOTE: The outdoor coil temperature of 10 munites after the compressor start-up is memorized until the defrosting

operation has ended.

B. When all of the following conditions are satisfied, defrosting will start.

(a) ~ (c) The same as above (a) ~ (c) in item A. (d) Total time of compressor operation exceeds “defrost interval”.

Further information on the defrost interval is described in (3).

C. After the total time of compressor operation exceeds the defrost interval, the thermostat repeats ON/OFF three times.

Two minutes after the fourth “ON” of the thermostat, if the outdoor coil thermistor reads -5°C or below and the fan output output is 100%, defrosting will start.

NOTE: The count of the thermostat ON/OFF is cleared by the compressor-OFF command or defrosting start-up.

(2) During defrosting

● Even if the thermostat turns OFF, defrosting continues.

● The 4-way valve, bypass valve, outdoor fan, and indoor fan are OFF.

Outdoor fan

Compressor

4-way valve

Bypass valve

Auto vane

Indoor fan

35degrees (SW5-3 OFF) or 20degrees (SW5-3:ON) airflow direction

(Remote controller still displays set direction.)

Outdoor unit

Indoor unit

Set direction

OFF

ON OFF

OFF

Set direction

Defrosting starts.

Defrosting stops.

3-5 Defrosting in HEAT mode <Defrosting time chart>

Page 41

(3) Defrost interval

The defrost interval time is determined as follows.

● Initial defrost interval is 50 minutes.

● The defrost interval after defrosting depends on the preceding defrosting time as shown below.

NOTE1:If the unit stops during defrosting , the next defrost interval will be 50 minutes. NOTE2:If a protection function works for the first time during defrosting, the compressor will stop.

After a 3-minute time delay, defrosting will restart. In this case, a 3-minute time delay is included with the defrosting time. If the protection function works for the second time, the unit stops operation and displays the check code. The next defrost interval will be 30 mimutes.

NOTE3:When the defrosting has ended, the total time of the compressor operation is cleard.

(4) Termination conditions

Defrosting finishes when any of the following conditions are satisfied.

1Defrosting has continued for 15 munites. 2Outdoor coil thermistor reads 22°C or above for the first 75 seconds after defrosting start-up. 3Outdoor coil thermistor reads 8°C or above after the 75-second defrosting. 4Power ON/OFF button is turned OFF during defrosting.

3-6 Actuators (1) Bypass valve control

<Cooling mode> 1When the unit stops due to the coil frost prevention, the bypass valve turns ON. When one hour ahs passed since the

compressor stopped, the bypass valve returns to OFF.

2When the compressor operates with the bypass valve at ON for more than 30 minutes, the bypass valve turns OFF. 3When the compressor stops with the bypass valve at OFF, the bypass valve turns ON and remains ON for three

minutes.

<Heating mode> 1When the unit starts for the first time after the circuit breaker has been turned ON, or when it starts after the compressor

OFF of 30 minutes or more, if the outdoor coil thermistor reads 12°C or more, the bypass valve turns ON.

2When the high pressure switch (63H1) works, the bypass valve turns ON. 3When the bypass has been ON for 30 minutes:

● If the high pressure switch has already returned, the bypass valve turns to OFF.

● If not, the fan output step keeps 70 for three minutes. Meanwhile, if the high pressure switch returns, the bypass valve

turns OFF. Otherwise the normal fan control starts.

4When the operation mode changes or stops, the bypass valve turns ON and remains ON for three minutes. <Defrosting operation>

1The bypass valve is OFF.

(2) 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 1-hour OFF.

Defrosting operation time Next defrost interval 3 minutes or below 120 minutes 3 to 7 minutes 80 minutes 7 to 10 minutes 60 minutes 10 to 15 minutes 40 minutes 15 minutes (Maximum) 30 minutes

Page 42

3-7 Service functions (1) Compulsory defrositng

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 (exept 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 os 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 swtich) For further information, refer to page 36.

(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 shorterning

Short circuit of the connector CN21 shortens the time as follows

1Fan control period: 30 seconds → 3 seconds 2Three-minutes time delay function : 3 minites → 3 seconds 3Max. time of defrosting : 15 minites → 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

Page 43

TROUBLESHOOTING

Symptom Cause Check points

The display “CENTRALLY CONTROLLED” on remote controller dose not disappear.

1) Wrong address setting of remote controller/indoor controller board.

2) Timer adapter is connected to the remote controller.

3) Singnal transmission error between indoor unit and remote controller.

1) Check the address setting of remote controller and indoor controller.

2) Make sure the timer adapter is used correctly.

3) 1 Turn another remote controller’s DIP SW177 ON to make it sub controller. 2 Connect the sub controller to the unit, and

turn circuit breaker ON.

● If the display “centrally controlled”

disappears, replace the original remote controller.

● If the display remains the same, replace the

When remote controller POWER button is turned ON, the check code “EO”appears.

1) Signal transmission error between indoor unit and remote controller

1) 1 Connect a sub remote controller. 2 Turn circuit breaker ON.

If the display “centrally controlled” remains, replace the indoor controller board.

3 If the display disappears, turn the remote

controller POWER button ON and check as follows.

When remote controller POWER button is turned ON, operating display appears, but disappears soon.

1) Short circuit of indoor/outdoor connecting wire

2) Short circuit of transmission wire.

3) Short circuit of drain sensor heater circuit.

4) Wrong operation of remote controller due to noise wave emitted by other appliances.

1), 2) Check the wire

3) Measure the resistance of the drain sensor connector CN50 1 ~ 3. Normal resistance should be 821.

4) Turn the circuit breaker OFF, and then turn ON.

If the remote controller remains abnormal, despite the above measures, replace the indoor controller board.

Despite turning POWER button ON, the remote controller display does not appear.

1) Damaged remote controller.

2) Short circuit of transmission wire.

3) Bad contact of indoor CN40.

4) CN40 is attached to a sub unit.

5) Damaged transformer.

6) Bad contact of CN4T.

7) Blown fuse.

8) Circuit breaker OFF.

1) Measure the voltage between terminals of remote controller. If no voltage, remove the terminals and measure the voltage between wires. If the voltage is between 6VDC and 12V, replace the remote controller.

2) ~ 8) Check each point.

If it is not defective, replace the indoor controller board.

1.TROUBLE IN TEST RUN

Remote controller

Operating Display

No Display

Sub remote controller

EO Display

Operating Display

EO Display

Operating Display

Malfunction

Malfunction of indoor Unit

Malfunction of Remote controller

Malfunction of indoor Unit and Remote Controller

Malfunction of Remote controller

Page 44

2. SELF DIAGNOSTIC FUNCTION WITH REMOTE CONTROLLER

2-1 When malfunction occurs during operation

When a malfunction occurs, the indoor and outdoor units stop and the malfunction is displayed on the LCD of the remote controller. (A) ON the set temperature display part, “CHECK” appears, and the unit

address and the check code are diplayed alternately at one-second intervals. (Check mode)

2-2 How to use the self diagnostic function for service A. For normal control with one unit and one remote controller

(1) Pressing the CHECK button on the remote controller twice starts the self diagnostic function. (2) During the self diagnostic function, “CHECK” appears at two positions on the remote controller display. Then, at least

10 seconds later, the unit address and the check code is alternately displayed at one-second intervals.

(3) Check and repair the unit according to the check code. (Refer to the next page.)

2-3 For group control using one remote controller

(1) Press the TEMP. or TEMP. button on the remote controller to advance or go back to the unit address.

Each time TEMP. button is pressed, the unit address advances by one. Each time TEMP. button is pressed, the unit address goes back by one. The check code and the unit address, appear alternately.

(2) The check code “U8” means no malfunction has occurred since installation.

The check code “EO” means the following conditions:

● The unit address displayed on the remote controller does not apply to any unit.

● Power is not supplied to the unit.

● Signal transmitting/receiving circuit is abnormal.

(3) Check and repair the unit according to the check code. (Refer to the next page.)

CHECK

°C

CHECK

°C

Example

Altenately

displayed

Unit address Check code

(2) When one remote controller controls several units in the group

control, the LCD shows the unit address and check code of the first malfunctioning unit.

(3) To cancel the check mode, press the [ON/OFF button. In remote

ON/OFF control, press the remote [ON/OFF switch. In centralized control, turn OFF the [ON/OFF button of centralized controller.

NOTE: The latest check code is memorized, even if the check mode is cancelled by the way mentioned above. It takes

60 seconds maximum to display the memorized check code.

FILTER

CHECK MODE

TEST RUN

240KA

Page 45

Check

code

Diagnosis of malfunction Cause Check points

EO Signal transmitting/receiving

error

(Indoor controller does not

respond to remote controller signal.)

During individual unit control

1) Bad contact of transmission wire

2) Signal transmitting/receiving circuit is abnormal.

1) Check the transmission wire.

2) Check with another remote controller. If “EO” is still indicated, replace the indoor controller board. If other check code appears. replace the original remote controller.

P3 Signal transmission error

(Remote controller does not

respond to indoor controller signal.)

1) Bad contact of transmission wire

2) Signal transmitting/receiving circuit is abnormal.

3) Wrong operation due to noise wave emitted by other appliances

1) Check the transmission wire.

2) Check with another remote controller. If “P3” is still indicated, replace the indoor board. If other check code appears, replace the original remote controller.

3) Short-circuit between 1 and 2 of CN40 and attach CN40 to the following units.

● Second unit in twin control

● Second and third units in triple control

● Sub units in group control

P4 Abnormality of drain sensor 1) Bad contact of transmission

wire

2) Damaged thermistor

1) Check the connector.

2) Measure the resistance of the thermistor 4 ~

5. As for the normal resistance, refer to the case of P1.

If the resistance is normal, replace the indoor controller board.

P5 Malfunction of drain pump 1) Malfunction of drain pump

2) Damaged drain sensor

1) Check the drain pump.

2) ● Check the drain sensor.

● Check the drain sensor heater. Normal

resistance should be 821. If the resistance is normal, replace the indoor controller board.

P6 Coil frost protection is

working.

1) Short cycle of air cycle

2) Dirty air filter

3) Damaged fan

4) Abnormal refrigerant

1) Clear obstructions from the air cycle.

2) Clean the air filter

3) Check the fan.

4) Check the refrigerant temperature.

P7 System error 1) Wrong address-setting

2) Signal transmitting/receiving circuit of remote controller is abnormal.

3) Wrong SW6-setting

1) Check the address-setting.

2) Check with another remote controller. If check code other than “P7” appears, replace the original remote controller.

3) Check SW6 setting.

P8 Abnormality in outdoor unit 1) Wrong wiring of indoor/outdoor

connecting wire

2) Reversed phase

3) Protection device is working

4) Damaged outdoor coil thermistor

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.

P1P2Abnormality of room

temperature thermistor (RT1)

Abnormality of indoor coil

thermistor (RT2)

1) Bad contact of thermistor

2) Damaged thermistor

1) Check the thermistor.

2) Measure the resistance of the thermistor. Normal resistance should be as follows.

0 C ···15k1 30 C·····4.3k1 10 C······9.6k1 40 C·····3.0k1 20 C······6.3k1 If the resistance is normal, replace the indoor controller board.

Page 46

3.SERVICE DATA INDICATION BY SWITCHES ON OUTDOOR CONTROLLER BOARD

Setting dip switchs SW2 and SW3 on the outdoor controller board enables LED to show the output state and check code. Output state is shown by LED lighting, and check code by blinking.

SW1 : Turning SW1 ON clears the check code. If SW1 is turned ON while the check code is blinking , the indication

changes to output state indication.

NOTE : SW1 is usually available independant of SW3 setting. As an exception, when the check code shows a

reversed phase or an open phase during the power-on-reset state, SW1 is not available.

SW2 : SW2 is turned ON by pressing, and OFF by releasing.

When SW3-1 and SW3-2 are OFF, pressing SW2 changes indication between output state and check code alternately. When SW2 is turned On with SW3-1 OFF and SW3-2 ON, the compulsory defrosting starts.

SW3 : Output state indication items depend on the combination of SW3-1 ON/OFF and SW3-2 ON/OFF.

Changed alternately by pressing SW2.

Lighting

Outdoor coil temperature

(bit)

OFF

128

Fan output

step

(bit)

OFF

128

Total time of

compressor

operation(Hr)

256

512

1024

2048

4096

8192

16384

32768

SW3-1

SW3-2

LED

LD1

LD2

LD3

LD4

LD5

LD6

LD7

LD8

Check code

OFF

Blinking

Reversed phase

Open phase

Outdoor coil thermistor is abnormal.

63H2 function

51C function

26C function

Overheat protection

Input circuit on controller board is abnormal

Output state

OFF

Compressor ON command from indoor controller

Heating operation command from indoor controller

During 63H1 function

Compressor ON

Outdoor fan ON

4-way valve ON

Bypass valve ON

Crankcase heater ON

Page 47

3-1 Outdoor coil temperature

To obtain data on the outdoor coil temperature, add the number of bits of lighting LEDs, and see the graph below to find the temperature.

3-2 Fan output step

To obtain data on the fan output step, add the number of bits of lighting LEDs, and see the graph below to find the fan rotational frequency.

3-3 Total time of compressor operation

Compressor operation time is indecated in 256 hour units. To obtain the compressor operation time, add the hours of lighting LEDs. During the compressor operation time indication, SW2 is not available.

3-4 Check code indication

● When a protection function works for the first time during operation, the operation stops and restarts after the 3-minutes time delay mode. When the protection function works again, the operation stops. (Check mode) When both SW3-1 and SW3-2 are OFF, the check code is indicated.

● If the outdoor controller board receives the compressor ON command from the indoor controller board during check mode the indication changes to output state indication.

● By pressing SW2 duirng normal operation. operation will continue.

● The latest check code is indicated.

Fan output step (bit)

Fan rotational frequency (rpm)

100 150 200 250

800

600

400

200

Fan output step (bit)

Fan rotational frequency (rpm)

100 150 200 250

800

600

400

200

100

Temperature

(Open 8 bits)(Open 8 bits)

(Short 238 bits)(Short 238 bits)

Number of bits

50 100 150 200 255

-20

-40

➀PUH-1.6/2KA type

<50Hz>

➁PUH-2.5KA type

<50Hz>

Page 48

Blinking

LED

Diagnosis of malfunction Cause Check point

LD1 Reversed phase Phases A1, A2, and A3are

connected improperly.

Check the power supply connection.

LD2

Open phase ● Phase A2is open.

● Contact of protector, such as thermal switch, opened when power was turned on.

● Check the power supply.

● Check each protector.

LD3 Outdoor coil thermistor is

abnormal. (Open circuit or short circuit)

● Outdoor coil thermistor is broken.

● Thermistor was connected incorrectly.

● Measure the resistance of the thermistor.

● Check the thermistor. If normal, replace the

outdoor controller board.

LD4 High pressure switch (63H2)

function

● 62H2 was badly connected.

● 63H2 was working.

● Check 63H2 and the outdoor fan motor.

● Check if refrigerant supply is low.

● Check if air cycle is short-cycled.

LD5 Thermal relay (51C) function ● 51C was connected

incorrectly.

● 51C was working.

● Check 51C, the compressor, and power supply.

LD6 Thermal switch (26C) function. ● 26C was connected

incorrectly.

● 26C is working.

● Check 26C.

● Check if refrigerant supply is low.

● Check if the capillary tube is clogged.

LD7 Over heat protection ● The thermistor is broken.

● Coil temperature is over

67°C.

● Measure the resistance of the thermistor.

● Check the outdoor fan motor.

● Check if air cycle is short-cycled.

LD8 Input circuit of outdoor

controller board is abnormal.

● Pulse input is abnormal. ● Replace the outdoor controller board.

Cause

1) Indoor/outdoor connecting wires are poorly connected. (Refer to next page.)

2) Power supply is poorly connected.

3) Connector or transformer is broken.

4) Fuse (6A) in the outdoor controller board is blown.

Check points

1) Check the connecting wires.

2) Check the power supply.

3) Check connectors and transformers.

4) Check the fuse.

4. TROUBLESHOOTING ACCORDING TO CHECK CODE

5. WHEN OUTDOOR UNIT DOES NOT WORK

Page 49

6. WRONG WIRING ON SITE

6-1 Between remote controller and indoor unit

If the wire is disconnected between the remote controller and the indoor unit, nothing is displayed on the remote controller when the POWER button is pressed. The beep sound will also not be heard.

6-2 Phenomenon due to wrong wiring between indoor and outdoor units

Wrong wiring

Mode

Thermostat

Phenomenon

OutdoorIndoor

1 2 3

COOL

OFF

Operation stops.

4-Way valve turns ON. 9 minutes later, check code “P8” appears on remote controller display.

HEAT

OFF

Cooling operation. Several minutes later, check code “P8” appears on remote controller display.

Normal operation.

OutdoorIndoor

1 2 3

COOL

OFF

Outdoor unit stops.

Operation stops. 9 minutes later, check code “P8” appears on remote controller display.

HEAT

OFF

Operation stops.

Operation stops. 27 minutes later, check code “P8” appears on remote controller display.

OutdoorIndoor

1 2 3

COOL

OFF

Outdoor unit stops.

Operation stops. 9 minutes later, check code “P8” appears on remote controller display.

HEAT

OFF

Operation stops.

Operation stops. 27 minutes later, check code “P8” appears on remote controller display.

OutdoorIndoor

1 2 3

COOL

OFF

Outdoor unit stops.

Operation stops. 9 minutes later, check code “P8” appears on remote controller display.

HEAT

OFF

Operation stops.

Operation stops, 27 minutes later, check code “P8” appears on remote controller display.

OutdoorIndoor

1 2 3

COOL

OFF

Outdoor unit stops.

Operation stops. 9 minutes later, check code “P8” appears on remote controller display.

HEAT

OFF

Operation stops.

Operation stops. 27 minutes later, check “P8” appears on remote controller display.

Disconnection between 1 and 1 or 2 and 2.

COOL

OFF

Operation stops.

Operation stops. 9 minutes later, check code “P8” appears on remote controller display.

HEAT

OFF

Operation stops. 4-way valve turns OFF.

27 minutes later, check code “P8” appears on remote controller display.

Disconnection between 3 and 3.

COOL —

Normal operation.

HEAT

OFF

Operation stops. 4-way valve turns ON.

Operation stops. 27 minutes later check code “P8” appears on remote controller display.

Page 50

LOSSNAY control switch does not work.

LOSSNAY control switch can not work during interlock

operation.

LOSSNAY control switch is effective only while Mr. SLIM is not

operating.

Symptom

LOSSNAY air speed can not be controlled in interlock operation.

LOSSNAY fan speed is fixed to HIGH during interlock

operation.

LOSSNAY fan speed LOW/HIGH can be switched only during

LOSSNAY individual operation with the LOSSNAY contorl switch.

Cause

For LOSSNAY, troubleshooting refer to the LOSSNAY technical & service manual.

8.MR. SLIM/LOSSNAY INTERLOCK OPERATION

If any of the following symptoms occur, they are not malfunctions.

Vanes do not work.

Vane motor does not work. Limit swtich does not work. Connector is poorly connected. Vane motor is poorly assembled. Indoor controller board is damaged.

Unit stops after 5 to 20 seconds operation

Protection function is working.

Air discharge display is OFF and button

does not operate.

Indoor controller board deems the auto vanes are not attached to the unit. Horizontal anlgle can not be detected.

In this case, remote controller is normal.

Power ON/OFF button is not available.

Beep sound is heard, but display is turned OFF.

Beep sound is not heard, and display remains OFF.

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

Remote controller is damaged. Transmission wire is poorly connected

Transmission wire is damaged. Connector is poorly connected. Indoor terminal block is poorly connected. Remote controller terminal block is poorly connected.

Vane motor is damaged. Vane motor relay is damaged.

Limit switch is damaged. The size of the cam is wrong.

Refer to check code on remote controller display. See page 45.

Indoor controller is

damaged.

Dip switch setting is

wrong.

Indoor controller is

damaged.

Vane motor is

damaged.

Vane motor limit switch

is poorly connected.

Auto vane is wired after

power is turned to ON.

Vane motor limit switch is damaged. Vane motor is damaged.

Poorly connected Disconnected

7. OTHER TROUBLES AND CAUSES

“CENTRALLY CONTROLLED” is displayed.

Page 51

4-WAY AIR FLOW SYSTEM11

1.Placement of the air outlets

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

1) Decide on the pattern of the airflow direction.

4-direction 3-direction

Airflow direction

pattern

Pattern 1 Pattern 4

Factory setting

One air outlet fully closed

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

●Correspondence of ceiling heights to numbers of air outlets.

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

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

Silent

4-directional

2.4m

2.7m 3.0m

3-directional 2.7m 3.0m 3.3m

2 Standard 3 High ceiling

SWB

SWA

Note 1. For the 3-direction air flow, install the air

outlet shutter plate(PAC-SF38SP-E)

Note 2. The 2-direction airflow is unavailable.

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

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

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

Indoor unit

Page 52

SYSTEM CONTROL

1 Group control with

a single remote controller (See page 53.)

Unit

Remote controller

Unit Unit

Many units, installed at different locations, can be started

and controlled with a aingle remote controller. The remote controller can be mounted in a different location using a non-polar two-wire cable, which can be extended up to 500m. A maximum of 50 units can be controlled with a single remote controller. All units operate in the same mode.

2 Both remote

ON/OFF and individual controls (See page 54.)

w Timer adapter

(PAC-SA89TA-E) is needed.

Optional adapter

Remote ON/OFF switch

Remote controller

Relay box

Unit

All units can be turned on or off simultaneously using a

remote ON-OFF switch. Also, each unit can be controlled individually by each remote controller. Duning remote ON-OFF control, a message of “CENTRALLY CONTROLLED” is displayed on the LCD of the remote controller.

This is available for both one unit control and several units

control.

3 Individual control

by grouping remote controllers (See page 55.)

Unit

Remote controller

Unit Unit

By grouping the remote controllers in one place, several

units installed at different locations can be controlled individually, and operation conditions of all units are visible without a special control board. The control method is the same as that of the single unit with a single remote controller.

4 Multiple remote

control display (See page 55.)

w Multiple display

adapter (PAC-SA88HA-E) is needed.

Unit

Remote controll display board

Remote controller

Unit Unit

Several units can be controlled with a remote control

display board. Operation conditions of all the units are visible with the remote control display board.

Individual control by each remote controller is also

possible.

5 Auto restart

function (See page 56.)

Circuit breaker

Remote controller

A unit can be started or stopped with the circuit breaker

on or off. Remote controller is also available. With this function, when the power is restored aftar power

failure, the unit will restart automatically. (However, when

the remote controller POWER ON/OFF button is OFF, the

unit will not start.)

1. VARIETY OF SYSTEM CONTROL FUNCTIONS

Page 53

2. GROUP CONTROL WITH A SINGLE REMOTE CONTROLLER

A maximum of 50 units can be started in order according to the dip switch settings

2-1 How to wire

(1) Connect the remote controller to the double terminal block

on the indoor controller board of the master unit (No.0 unit). (See Figure 1.)

(2) Connect the double terminal block of the master unit to the

double terminal block of No.1 unit.

(3) Connect the double terminal block of No.1 unit to the

double terminal block of No.2 unit.

(4) Continue the process until all the units are connected with

two-wire cables. (See Figure 2.)

(5) Remove the connector CN40 from the indoor controller

board of each unit except the master unit. (See Figure 3.)

(6) Set the unit-address of esch unit with SW2 on the indoor

controller board following the instructions below.

2-2 How to set unit-address

The unit-address also serves as a successive-start timer which starts each unit at intervals of 1 second. If two or more units have the same unit-address in a group control, operation stops due to system error. Be sure to set SW2 correctly following the instructions below. (1) Each lever of SW2 shows the number as follows.

SW2-1 : 1 SW2-4 : 8 SW2-2 : 2 SW2-5 : 16 SW2-3 : 4 SW2-6 : 32

(2) Total number of levers turned to ON shows the address of

the unit. For example, to set No.3 unit, turn ON SW2-1 and SW2-2.

(3) In this way, set from the. master unit to the last unit.

Do not forget to set the master (No. 0) unit.

2-3 Unit control

The remote controller can control all units ON/OFF, temperature,air flow, and swing louver. However, the thermostat in each unit turns ON or OFF individually to adijust to the room temperature.

Unit address & start delay in seconds.

SW2

Master (No. 0) unit

ALL OFF

No. 1 unit

1 ON

No. 2 unit

2 ON

No. 4 unit

3 ON

No. 8 unit

4 ON

No. 16 unit

5 ON

No. 32 unit

6 ON

Setting examples

To remote controller

To next unit

The last unit does not have this wire.

Next unit electrical box

Master unit electrical box

123ANE

Master unit

No.1 unit No.2 unit Last unit

2-wire cable

Figure 2

Figure 3

Indoor controller board ▼

Should be removed from all units other than unit 0: (Master Unit)

Figure 1

Page 54

NOTE1 : Install the relay box where you can be serviced it easily. NOTE2 : For control circuit wiring, use a wire of No. 14 AWG or a control cable according to the power supply of control

circuit.

NOTE3 : When the power supply of the control circuit is 220/240V AC,

● Do not connect the control circuit wire to the remote controller cable directly.

● Do not place the control circuit wire and the remote controller cable into the same conduit tube.

3-2 Basic wiring

Caution : Before starting all units simultaneously by the remote ON-OFF switch, be sure to connect a sequence-start timer

into the remote ON-OFF circuit. Otherwise, a rush of starting current may damage the power supply.

w1After all units start together, if SW2 is turned OFF, each unit can be individually stopped by each remote controller. w2After all units stop together, if SW2 is turned OFF, each unit can be individually started by each remote controller.

3-3 Switch function of remote ON-OFF switch

SW1 (Switches between

remote ON and OFF.)

(Start)

OFF

(Stop)

All units start together. Individual control is not available.

SW2

(Switches between remote ON-OFF and individual control)

(Remote ON-OFF control)

Each unit can be controlled by each remote controller. Remote ON-OFF switch is not available.

OFF

(Individual control)

Power supply

Remote ON/OFF switch

No.1 unit relay box

No.2 unit relay box

Next unit

X2 X2

Glow switch or pilot lamp can be combined to easily identify the on-off mode of SW1 and SW2.

To No.1 unit

To No.2 unit

Timer adapter cables

Remote controller

SW2

3. REMOTE ON-OFF AND INDIVIDUAL REMOTE CONTROLS

This method is available to control one unit or any number of units. The following operations are available by connecting a relay, a timer adapter (PAC-SA89TA-E), and a remote ON/OFF switch to the system. Timer adapter is an optional part. Other parts are available on the market. (A) To start all units in order by remote ON-OFF switch (B) To stop all units simultaneously by remote ON-OFF switch (C) To switch between the remote ON-OFF control and the individual remote control

3-1 System

Figure 6 shows the case of three units.The same is the case with any number of units.

Remote controller

power supply of control circuit

Remote ON/OFF

switch

2-wire remote controller cable

Figure 6

Relay box

Timer adapter cables

Timer adapter PAC-SA89TA-E

Page 55

4. INDIVIDUAL CONTROL BY GROUPING THE REMOTE CONTROLLERS

● Grouping the remote controllers allows individual control and centralized monitoring of units installed in different places without a special control board.

● Remote control cables are extendable up to 500m. When the cable length exceeds 12m, use the double-insulated two-care cable such as Belden 9407. Also, the cable thickness must be No. 22 AWG or above.

● When gathering the power ON/OFF switches of air conditioners near the remote controllers, you should also install the power ON/OFF switch near each unit to prevent electric trouble during servicing.

Remote controller cable (2-core)

Remote controller

5. MULTIPLE REMOTE CONTROL DISPLAY

You can control serveral units with a multiple remote control display, by wiring an optional multipe display adapter (PAC-SA88HA-E) with relays and lamps on the market.

5-1 How to wire

(1) Connect the multipe display adapter to the connector CN51 on the

indoor controller board.

(2) Wire three of the five wires from the multiple display adapter as shown

in the figure below.

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

consumption below 0.9W.

Lamps:Matching to power supply voltage.

CN51

connector(5P)

GREEN

Power supply

Electrical insulation is needed.

Wiring at the actual place

Optional multiple display 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

No.2 unit

No.3 unit

X1-2

X2-2

X1-3

X2-3

Indoor controller board

Page 56

6. AUTO RESTART FUNCTION

By setting the dipswitch SW1-10 to ON, the air conditioner can be started/stopped by power supply ON/OFF. If the air conditioner is OFF before the power failure, it will not start operation by power restore.

Remote controller

A B

Brown

Red

Orange

Remote controller

A B

Brown

Red

Orange

A : an optional timer adapter B : a single-throw switch

For remote control, connect the optional timer adapter (PAC-SA89TA-E)

Page 57

DISASSEMBLY PROCEDURE13

OPERATING PROCEDURE PHOTOS&ILLUSTRATIONS

1. Removing the air intake grill

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

intake grill.

PUSH

4. Removing the fan motor

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

3. Removing the electrical parts box

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

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

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

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

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

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

Electrical parts inside the box

Terminal block

Transfomer

Indoor fan capacitor

Room temperature thermistor

Indoor controller board

2. Removing the fan guard.

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

1. INDOOR UNIT

Be careful on removing heavy parts.

Photo 1

Photo 2

Photo 3

Figure 1

Photo 4

nut

Fan motorConnector

Fan guard screw

Lead wire for vane motor

ConnectorTerminal blockAnti-falling wire

Radiator aluminum cap

Capacitor

Nut

Screws

Box cover

Clamp

Fan guard

Electrical box

Connerctor

Room temperature thermistor

Screws Transformer

Indoor controller board

PUSH button

Shaft

Intake grill

Page 58

OPERATING PROCEDURE PHOTOS&ILLUSTRATIONS

5. Removing the room temperature thermistor

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

by pulling the catch.

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

controller board.

6. Removing the indoor coil thermistor

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

attached to the copper pipe.

(8) Disconnect the 2-pin white connector.

7. Removing the panel

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

8. Removing the drain pan

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

cover.

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

and remove the corner supports 1,2 and 3.

(9) Pull out the drain pan.

wPull the left and right of the pan gradually.

Be careful not to crack or damage the pan.

Photo 8

Photo 7

Photo 6

Photo 5

Indoor controller board

Room temparature thermistor

Mounting hole

Indoor coil thermistor

Corner support 1

Corner support 3

VA cover

Rubber bush

Corner support 2

Screws

screws

Panel

Fan guard

Temporary hanging hook

Page 59

OPERATING PROCEDURE PHOTOS&ILLUSTRATIONS

9. Removing the drain pump and drain sensor

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

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

10. Removing the heater

(for the only PLH-1.6/2/2.5KKHB) (1) Remove the panel. (2) Remove the fan guard. (3) Remove the electrical parts cover. (4) Remove the electrical parts box. (5) Remove the drain pan. (6) Remove the turbo fan. (7) Remove the 5 screws of the hearter assembly. (8) Remove the clamp (1 screw) securing the lead wire. (9) Pull the heater assembly out.

11. Removing the heat exchanger

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

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

and pull out the piping cover.

Photo 9

Photo 10

Drain hose

Drain pump

Heater screws

Drain sensor

holder

Screws

Clip

Photo 11

Photo 12

Lead wire clamp

Heat exchanger

Heater assembly

Coil support B

Coil support A

Coil screws

Screws of piping cover

Piping cover

Page 60

PARTS LIST

1 2 3 4 5 6 7

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

— T7W 14K 200 T7W 556 305

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

12m

1 1 1 2 1 1 1

(BG88H096H01)

R.B

Unit

Amount

Recommended

Q’ty

Part No. Part Name

Specification

Remarks

(Drawing No.)

Wiring

Diagram

Symbol

No.

Price

Q’ty/set

PLH-

1.6/2/2.5

KKHB.UK

PANEL PARTS PLH-1.6KKHB·UK PLH-2KKHB·UK PLH-2.5KKHB·UK

Page 61

PANEL PARTS PLH-1.6KKHB·UK PLH-2KKHB·UK PLH-2.5KKHB·UK

Part No. Part Name

No.

R01 29H 002

R01 29H 085

R01 29H 223

R01 29H 063

T7W 33K 063

R01 29H 056

R01 29H 047

T7W 560 258

R01 29H 040

R01 29H 041

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

Specification

240V 28.2W

Q’ty/set

1.6/2/2.5

PLH-

KKHB.UK

4 1 1 1 1 1 8 1 1 1

Remarks

<3/SET>

Wiring

Diagram

Symbol

Recommended

Q’ty

Unit

Price

Amount

Page 62

FUNCTIONAL PARTS PLH-1.6KKHB·UK PLH-2KKHB·UK PLH-2.5KKHB·UK

Page 63

Part numbers that are cicled are not shown in the figure.

No.

Part No. Part Name

1 2 3 4 5 6 7

9 10 11 12 13 14 15

17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39

— —

— T7W E00 762 R01 29H 105

— R01 41N 114 S70 A00 300 S70 A01 300 R01 32K 706 R01 046 700 R01 08K 202 R01 29H 523 T7W 55K 355 R01 W28 226 R01 W28 527 T7W 580 480 R01 38H 480 R01 41H 480 S70 A00 529

—

— T7W 521 716 T7W 517 716 T7W 515 716 R01 29H 255

— T7W 58K 310 T7W 520 239 T7W 580 799 R01 J07 202

—

— R01 71G 215 S70 A00 675 R01 08K 097 R01 A48 524 R01 005 533

BASE LEG LEG FAN MOTOR MOTOR MOUNT INNER COVER TURBO FAN HEATER ELEMENT HEATER ELEMENT THERMAL FUSE THERMAL SWITCH INDOOR COIL THERMISTOR DRAIN SOCKET DRAIN PUMP DRAIN SENSOR DRAIN HOSE HEAT EXCHANGER HEAT EXCHANGER HEAT EXCHANGER DRAIN PAN CORNER SUPPORT (1) CORNER SUPPORT (2) CORNER SUPPORT (2) CORNER SUPPORT (3) LEAD WIRE COVER PANEL HOOK TERMINAL BLOCK TERMINAL BLOCK TERMINAL BLOCK FAN MOTOR CAPACITOR CONTROLLER CASE INDOOR CONTROLLER BOARD FUSE TRANSFORMER ROOM TEMPERATURE THERMISTOR BELL MOUTH ELECTRICAL PARTS COVER RELAY FAN GUARD SPL WASHER DRAIN PLUG SENSOR HOLDER

Specification

467W 240V 700W 240V 77$C 250V 10A OFF42$C ON32$C

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

2.5+F 400V

250V 6.3A

LY2F DC12V

Q’ty/set

PLH-1.6

KKHB.UK 1 2 2 1 3 1 1 3

2 1 1 1 1 1 1 1

1 1 1 1 1 1 2 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1

PLH-2

1 2 2 1 3 1 1 3

2 1 1 1 1 1 1

1 1 1 1 1 1 2 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1

PLH-2.5

(Drawing No.)

(BG00T765G01)

(BG00K209G01)

(BG00K209G02) 1 3 1

(BG00T770G01) 1

3 2 1 1 1 1 1 1

1 1 1

(BG00K210G01) 1

(BG00K211G01) 1

(BG00K212G01) 1

(BG00T856G01) 1

(BG00T861G01) 2

(BG17H174H02) 1 1 1 1 1

(BG25J542H04) 1 1 1 1 1

(BG00L601G21) 1

(BG00A662G17) 1 1 1 1 1

Remarks

Wiring

Diagram

Symbol

MF1

H1 FS1 26H RT2

DP DS

TB2 TB4 TB5

I.B

F1(I.B)

RT1

88H

Recommended

Q’ty

Unit

Price

Amount

Page 64

OPTIONAL PARTS

Note 1. How to connect refrigerant pipes.

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

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

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

2-2 Feature of program timer

(1) Daily timer function

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

(2) Setback operation (PAC-SK65PT)

Set back operation is useful for reducing running costs e.g. At a hotel with a 24-hour system

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

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

(3) Weekly timer function

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

1. REFRIGERANT PIPES

Service Ref. : PLH-1.6KKHB.UK/PLH-2KKHB.UK/PLH-2.5KKHB.UK

Indoor unit: Flared Outdoor unit: Flared

Liquid:{9.52 Gas:{15.88

PAC-05FFS

PAC-07FFS

PAC-10FFS

10m

PAC-15FFS

15mPipe length Pipe size O.D. Connection method

Part No.

2. TIMER

Product Name

PAC-SC32PT (with set back function)

Program timer

Part No.

2-1 Program timer specifications

Parts No. Exterior dimensions (inch) Installation Type of clock Clock accuracy Display-Time

-Week

-Timer setting unit Program cycle Timer setting unit No. of set points Power rating

Program timer PAC-SC32PTA 5-4/32x4-23/32x23/32 (130x120x18mm) Wall mount Quartz (50 second / month at 25$C Liquid crystal display Liquid crystal display Liquid crystal display 24 hours 30 minutes 48 / day 5V DC (5% (Supplyed by Remote Controller)

Parts name

28˚C

˚C

8:00

Normal

operation

23:00

Setback

operation

8:00

Normal

operation

Page 65

2-3. How to connect program timer

(1) Install the program timer next to the remote controller the same way as the remote controller is installed. (2) Connect the program timer and the remote controller with a 6-wire cable as shown in the figure below

3. TIMER ADAPTER

This adapter is needed for system control and for operation via extemal contacts. Adapter connection is described on page

54.

2-4. Names and functions

<PAC-SC32PT>

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

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

Part No. PAC-SA89TA-E

WEEKLY TIMER SETTING DISPLAY

Used for selection of if or not the day operation pattern set by PATTERN SETTING is to be applied in weekly day unit, setting.

SET/MONITOR

SET

SMTWT F S

MONITOR

PROERAN TIMER

PAC-SC32PTA

TODAY

WEEKLY SETTING

OFF

SET BACK

OFF

CLOCK DAILY TIMER

SET BACK

DAILY

SETTING

12 15 18 21 24

0361215

CURRENT TIME DISPLAY

During MONITOR status,current time is display. During Daily timer setting, a time desire for timer setting is displayed.

SET BACK DISPLAY

Indicates the setting set back range.

DAILY TIMER SETTING DISPLAY

24 hours is divided into 48 blocks and each block express 30 minutes. The block display consists of 3 pattern.

“MONITOR” :Indicates the current timer

setting. All switch expect MODE SELECTOR SW are invalidated then.This is the normal status.

“SET”: Set to “SET” mode for clock

adjustment, charge of week day, daily and weekly timer setting.

Push SW to advance the time. Each time the button is

pushed the time advance by 1 minute, pushing continuously advances by 1 minute at 0.5 second interval, and when the lower digit of minute decomes 0 indication advances in 10 minutes unit.

SW is used for reversing the time. Each time the button is pushed the time reverses by 1 minute, pushing continuously reverses the time by 1 minute at 0.5 second interval, and when the lower digit of minute decomes 0 indication reverses in 10 minutes unit.

Pushing SW moves the week day light display in order of S → M → T → W

…

enabling to set the week day.

SET BACK SETTING SW

Used for set back setting.

SET/MONITOR DISPLAY

During SET is display, clock adjustment, change of weekly day, daily and weekly timer setting can be performed. During MONITOR is display, all switches except SET/MONITOR SW are invalidated. This is normal status.

WEEK DAY SETTING SW

Used for week day setting.

MODE SELECTOR SW

Using this switch select “MONITOR” or “SET” Mode.

CLOCK ADJUSTMENT SW

Used for adjustment of the current time.

WEEKLY TIMER SW

Used for setting timer in day of week unit.

Set back can be done in the range of 1,2,4,6 and 8°C.

ON/SET BACK/OFF SW

Used to specify the time setting pattern.

DAILY TIMER SW

Used for timer setting in 30 minutes unit.

2-wire cable

Connector CN1 Connector CN1

To indoor unit

FILTER

CHECK MODE

TEST RUN

6-wire cable

SET MONITOR

SET/MONITOR

PROERAN TIMER PAC-SC32PTA

SMTWTF S

WEEKLY

TODAY

SET BACK

SETTING

CLOCK DAILY TIMER

OFF

SET BACK

0361215

12 15 18 21 24

SET BACK

OFF

DAILY

SETTING

ORN 1 BRN

RED

2 3

Page 66

1 2 3 4 5

BRN RED ORN YLW GRN

BACK

ACTIVE BYPASS

POWER ON/OFF

DUAL

CENTRAL

AHEAD

MITSUBISHI ELECTRIC

ENGAGED

GROUP

ACTIVE BYPASS

GROUP SELECTION

PROGRAM TIMER

CONTROLLER OPERATION

DUAL CENTRAL

12345678910

117

BACK

ACTIVE BYPASS

POWER ON/OFF

DUAL

CENTRAL

AHEAD

ENGAGED

GROUP

ACTIVE BYPASS

GROUP SELECTION

PROGRAM TIMER

CONTROLLER OPERATION

DUAL CENTRAL

12345678910

113

10 9 8 7 6 5 4 3 2 1

56.5

23.5

BACK

ACTIVE

BYPASS

POWER ON/OFF

DUAL

CENTRAL

AHEAD

MITSUBISHI ELECTRIC

ENGAGED

GROUP

ACTIVE BYPASS

GROUP SELECTION

PROGRAM TIMER

CONTROLLER OPERATION

DUAL CENTRAL

12345678910

4. MULTIPLE REMOTE CONTROLLER ADAPTER

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

5. CENTRALIZED REMOTE CONTROLLER

Allows individual or combined control of up to 16 units. When using the PAC-805RC, the program timer adapter (PAC825AD)is also needed. See page 68.

Part No. PAC-SA88HA-E

Part No. PAC-805RC

5-1. Dimensions Unit : mm

5-2. Functions

"ENGAGED" indicator When this indicator is lit, transmission is in progress and all switches are inoperative.

DUAL/CENTRAL switch This change-over switch governing the

operation of the accessory remote controller.

"DUAL" Instructions from both the accessory remote controller and the centralized remote controller are valid. (Priority given to the last instruction received.)

"CENTRAL" ON/OFF switching by the accessory remote controller is invalidated. Control is by the centralized remote controller only. Initial setting is "DUAL".

LCD Matrix Display This display indicates the operational status of all connected units either by steady lighting or by flashing.

POWER ON/OFF switch Operation ON/OFF switch.

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

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

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

ACTIVE/BYPASS switch This is a change-over switch for the program timer. (It selects timer operation on the program timer.) Use “BYPASS” when a program timer is not connected. “ACTIVE” The switch tums ON/OFF operational instructions from the program timer automatically. “BYPASS” ON/OFF Operation is by the centralized remote controller only. Initial setting is “BYPASS”.

Independent “DUAL / CENTRAL” and “ACTIVE / BYPASS” setting of all the groups is possible. When the power supply to the centralized remote controller is cut due to power failure, all settings will return to original “DUAL” and “BYPASS”.

Page 67

5-3 Connection method

(1) Connections in the power supply cord.

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

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

2. Connect the transmission line to the transmission terminal-block and fix it in-place with a tie-wrap. Use a {1.6 (AWG 14) or above two-wire cable for the transmission line.

CAUTION : Never connect the power supply cord to the transmission terminal-block.

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

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

2. Wiring diagram 3. Be sure to set the maximum address number with the

dipswitch SW17 on the centralized remote controller.

TERMINAL-BLOCK FOR TRANSMISSION

TERMINAL-BLOCK OF POWER SUPPLY

Transmission

Tie-wrap

TRANSFORMER

ANE

Fuse(5A)

Tie-wrap

(W) (R) (O)

(BR)

200

220

230

(Y)

240

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

To adaptor's terminal-block

Power supply board box

POWER SUPPLY

GROUP SELECTION

PROGRAM TIMER

CONTROLLER OPERATION

BACK

ACTIVE BYPASS

DUAL

CENTRAL

10 9 8 7 6 5 4 3 2 1

POWER ON/OFF

AHEAD

To adaptor's

Non-polar, two-wire cable

terminal-block

ENGAGED

GROUP

12345678910

ACTIVE BYPASS

DUAL CENTRAL

Centralized remote controller

BACK

ACTIVE BYPASS

DUAL

CENTRAL

10 9 8 7 6 5 4 3 2 1

POWER ON/OFF

AHEAD

Dip switch SW17

Centralized remote controller

Power supply board

ENGAGED

GROUP

12345678910

ACTIVE BYPASS

DUAL CENTRAL

GROUP SELECTION

PROGRAM TIMER

CONTROLLER OPERATION

Page 68

6. PROGRAM TIMER ADAPTER

This adapter is needed when a centralized remote controller(PAC-805RC)is used.

6-2 Connection method

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

6-1 Parts included

Part No. PAC-825AD

(2) When the centralized remote controller is used, set the address number with the dipswitch SW1 of the

program timer adapter.

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

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

Length : 2m (6' 7")

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

Length : 2m (6' 7")

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

Length : 2m (6' 7")

(1) Connections in the adapter box

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

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

A N

Length : 2m (6' 7")

Fig-1 Fig-2

TERMINAL-BLOCK FOR TRANSMISSION

Tie-wrap

Transmission cord

CN22

Dip switch

TRANS

CN1 CN21 CN51 CN30CN42 CN50 CN40

Fuse(5A)

TRANSFORMER

(AG)

SW1

ANE

POWER SUPPLY CORD

TERMINAL-BLOCK FOR POWER SUPPLY

Tie-wrap

Terminal block for transmission to program timer or centralized remote controller

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

(W)

CN22

TRANS

(B)

200

SW1

(Y)

240

220

A N E

POWER SUPPLY

Page 69

(3) Connections from adaptor

6-3 Dimecsions

Fig.3

To program timer or centralized remote controller

Adaptor

CN30 CN50

200~240V AC

Fig. 4

3-core cable 5-core cable

CN51

Remote controller Indoor unit

Max. length of each calbe is 10m.

(Unit : mm)

40 80 40 27

220

4Fixing screw holes

5.5

2 2holes 2.9

74 7

120

200

86 70

3holes

hole

230

15 15

Page 70

Part No. PAC-SE01AS-E

Applied Service Ref. PLH-1.6KKHB.UK/PLH-2KKHB.UK/PLH-2.5KKHB.UK

7. SPACE PANEL

Part No. PAC-SE06WP-E

Applied Service Ref. PLH-1.6KKHB.UK/PLH-2KKHB.UK/PLH-2.5KKHB.UK

8. WIDE PANEL

Part No. PAC-SF38SP-E

Applied Service Ref. PLH-1.6KKHB.UK/PLH-2KKHB.UK/PLH-2.5KKHB.UK

9. AIR OUTLET SHUTTER PLATE

750

Hole

R7.8

R26

750

R7.8

965

Hole

965

R25

R37

R31

R25

R37

R31

R18047.5

R18102.5

122

440

Page 71

Part No. PAC-SE21TM-E

Applied Service Ref. PLH-1.6KKHB.UK/PLH-2KKHB.UK/PLH-2.5KKHB.UK

10. MULTI-FUNCTIONAL CASEMENT

Part No. PAC-SE13KF-E

Applied Service Ref. PLH-1.6KKHB.UK/PLH-2KKHB.UK/PLH-2.5KKHB.UK

11. HIGH-EFICIENCY FILTER ELEMENT

Parts included :

Casement

Screw with

washer

Duct flange

Tapping

screw

Hook Band

1 pc 4 pcs

M5✕0.8✕15

1 pc 6 pcs

4✕10

2 pcs 1 pc

Page 72

Issued in Jun. 1997 No. OC147 560

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

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

Mitsubishi PLH-1.6KKHB.UK, PLH-2.5KKHB.UK, PLH-2KKHB.UK Service Manual

Specifications and Main Features

Frequently Asked Questions

User Manual