Mitsubishi PKH-1.6GKL, PKH-1.6GKLH, PKH-2GKL, PKH-2GKLH Service Manual

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Page 1

SPLIT-TYPE,HEAT PUMP AIR CONDITIONERS

ON/OFF

TECHNICAL & SERVICE MANUAL

2000

No.OC229

Series PKH

Wall Mounted

Indoor unit [ Model names ] [ Service Ref. ]

PKH-1.6GKL PKH-1.6GKL PKH-1.6GKLH PKH-1.6GKLH PKH-2GKL PKH-2GKL PKH-2GKLH PKH-2GKLH

CONTENTS

1. PART NAMES AND FUNCTIONS ·······················2

2. SPECIFICATIONS················································4

3. DATA·····································································6

4. OUTLINES AND DIMENSIONS·························14

Indoor unit

5. WIRING DIAGRAM ············································15

7. OPERATION FLOW-CHART ·····························17

8. MICROPROCESSOR CONTROL······················21

9. TROUBLESHOOTING ·······································41

10. SYSTEM CONTROL ··········································51

11. DISASSEMBLY PROCEDURE···························56

12. PARTS LIST ·······················································60

13. OPTIONAL PARTS·············································63

This manual does not cover the following outdoor units. When servicing them, please refer to the service manual No.OC128 REVISED EDITION-A and this manual in a set. [Service Ref.] PUH-1.6VKA PUH-2VKA2

REFRIGERANT SYSTEM DIAGRAM

······················16

Remote controller

Page 2

1 PART NAMES AND FUNCTIONS

● Indoor Unit

Air intake

Guide vane

Filter

Air outlet

Air intake grille

Auto vane

Page 3

●Wireless remote controller

● When cover is open.

display

Lights up while transmission to the indoor unit is mode using switches.

display

OPERATION MODE display Operation mode display indicates which operation mode is in effect.

• FUNCTION

Lights up when function are set..

display

• TEST RUN • CHECK display

CHECK&TEST RUN display indicates that the unit is being checked or test-run.

display

Displays when batteries are dead.

display

The vertical direction of airflow is indicated.

display

FAN SPEED display indicates which fan

speed has been selected.

ADDRESS display

Displays the refrigerant address.

UNIT NO. display

Displays the number of unit..

FUNCTION NO. display

Displays the mode.

SELECTION NO. display

Displays the selection number..

ADDRESS UNIT No. FUNCTION No. SELECTION No.

FUNCTION TEST RUN

CHECK

ON/OFF

MODE FAN

RESET

VANE

AM PM

TEMP.

˚C

START

STOP

HR.

MIN.

display

SET TEMP. display indicates desired temperature set.

CLOCK display

DIsplays the current time.

“ ”display

Flashes when the current time is displayed.

TIMER display

Displays when in timer operation or when setting timer.

➡

“ ” “ ” display

➡

Displays the order of timer operation.

“ ” “ ” display

Displays whether timer is on or off.

▼

“ ” “ ” display

Displays when the current time and the timer

time can be changed.

▼

TEMP. button

display

The unit is turned ON and OFF alternately

each time the button is pressed.

● When cover is open.

MODE SELECT button

Used to switch the operation mode between cooling , drying , blowing , heating and auto mode.

FAN SPEED SELECT button

Used to change the fan speed.

VANE CONTROL button

Used to change the airflow direction.

ON/OFF

MODE FAN

RESET

VANE

TEMP.

START

STOP

HR.

MIN.

SET TEMPERATURE button sets any desired

room temperature.

TIMER CONTROL buttons

STOP (OFF timer): when this switch is set, the air conditioner will be automatically stopped at the preset time. START(ON timer): when this switch is set, the air conditioner will be automatically started at the preset time.

HR. and MIN.buttons

Buttons used to set the “hour and minute” of the current time and timer settings.

button

RESET button

Page 4

Item Function

Capacity Total input

Service Ref.

Power supply(phase, cycle, voltage)

Input Running current

Starting current External finish Heat exchanger Fan Fan(drive) ✕ No.

Fan motor output

Airflow(Low-High)

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

Dimensions Weight

Service Ref.

Power supply (phase, cycle, voltage)

Input

Running current

Starting current External finish Refrigerant control Compressor

Model

Motor output

Starter type

Protection devices Heat exchanger Fan Fan(drive)✕No.

Fan motor output

Airflow Defrost method Noise level

Dimensions Weight

Refrigerant

Charge

Oil<Model> Pipe size O.D.

Connection method

Between the indoor & outdoor unit

Service Ref.

D H

Liquid A(in.) Gas A(in.) Indoor side Outdoor side Height difference Piping length

INDOOR UNITOUTDOOR UNIT

REFRIGERANT PIPING

Btu/h

A A

/X<CFM>

Pa(mmAq)

A(in.) A(in.) A(in.) A(in.)

kg(lbs)

A A

/X<CFM>

A(in.) A(in.) A(in.)

kg(lbs) kg(lbs)

PKH-1.6GKL

PKH-1.6GKLH

Cooling

4,500

15,350

1.51

0.07

0.33

0.40

1.44

6.74

Heating

4,650 (5,450)

15,900 (18,600)

1.48 (2.28)

0.07 (0.87)

0.33 (3.66)

0.40 (3.73)

1.41

6.60

PKH-1.6GKL

PKH-1.6GKLH

Single, 50Hz, 220-240V

Munsell 0.70Y 8.59/0.97

Plate fin coil

Line flow(direct) ✕ 1

0.030

9-12 (318-424)

0(direct blow)

(0.8)

Remote controller & built-in

36-43

20(13/16)

990 (39)

235 (9-1/4)

340 (13-3/8)

16(35) (17(37))

PUH-1.6VKA

Single, 50Hz, 220-240V

Munsell 5Y 7/1

Capillary tube

Hermetic

RH247VFC

1.2

Line start

Internal thermostat, HP switch

Plate fin coil

Propeller (direct) ✕ 1

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(4.9)

0.57<MS-56>

9.52(3/8)

15.88(5/8) Flared Flared

Max. 40m Max. 40m

Guaranteed operating range

Cooling Heating

Upper limit Lower limit Upper limit Lower limit

Indoor D.B. 35:, W.B. 22.5: D.B. 21:, W.B. 15.5:

D.B. 27: D.B. 20:

Outdoor

D.B. 46:

D.B. -5: D.B. 21:, W.B. 15.5: D.B. -8.5:, W.B. -9.5:

SPECIFICATIONS

Note1. Rating Conditions (JIS B 8616)

Cooling : Indoor : D.B. 27°C (80°F), W.B. 19°C (66°F) Heating : Indoor : D.B. 20°C (68°F)

Outdoor : D.B. 35°C (95°F), W.B. 24°C (75°F) Outdoor : D.B. 7°C (45°F), W.B. 6°C (43°F)

Page 5

Item Function

Capacity Total input

Service Ref.

Power supply(phase, cycle, voltage)

Input Running current

Starting current External finish Heat exchanger Fan Fan(drive) ✕ No.

Fan motor output

Airflow(Low-High)

External static pressure

INDOOR UNITOUTDOOR UNIT

Booster heater Operation control & Thermostat Noise level(Low-High) Unit drain pipe O.D.

Dimensions Weight

Service Ref.

Power supply (phase, cycle, voltage)

Input

Running current

Starting current External finish Refrigerant control Compressor

Model

Motor output

Starter type

Protection devices Heat exchanger Fan Fan(drive)✕No.

Fan motor output

Airflow Defrost method Noise level

Dimensions Weight

Refrigerant

Charge

Oil<Model> Pipe size O.D.

Connection method

Between the indoor & outdoor unit

REFRIGERANT PIPING

Note1. Rating Conditions (JIS B 8616)

Cooling : Indoor : D.B. 27°C (80°F), W.B. 19°C (66°F) Heating : Indoor : D.B. 20°C (68°F)

Outdoor : D.B. 35°C (95°F), W.B. 24°C (75°F) Outdoor : D.B. 7°C (45°F), W.B. 6°C (43°F)

Liquid A(in.) Gas A(in.) Indoor side Outdoor side Height difference Piping length

Service Ref.

Btu/h

Cooling

5,500

18,800

2.27

PKH-2GKL

PKH-2GKLH

Heating

6,250 (7,050)

21,300 (24,100)

2.29 (3.09)

PKH-2GKL

PKH-2GKLH

Single, 50Hz, 220-240V

A A

0.07

0.33

0.40

0.07 (0.87)

0.33 (3.66)

0.40 (3.73)

Munsell 0.70Y 8.59/0.97

Plate fin coil

Line flow(direct) ✕ 1

/X<CFM>

Pa(mmAq)

0.030

9-12 (318-424)

0(direct blow)

(0.8)

Remote controller & built-in

A(in.) A(in.)

D H

A(in.) A(in.)

kg(lbs)

36-43

20(13/16)

990 (39)

235 (9-1/4)

340 (13-3/8)

16(35) (17(37))

PUH-2VKA

Single, 50Hz, 220-240V

A A

2.20

9.86 45

2.22

9.95

Munsell 5Y 7/1

Capillary tube

Hermetic

NH38VMD

1.7

Line start

Internal thermostat, HP switch

Plate fin coil

Propeller (direct) ✕ 1

/X<CFM>

0.065

45(1,590)

Reverse cycle

A(in.)

D H

A(in.) A(in.)

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

kg(lbs)

870(34-1/4) 650(25-5/8)

64(141)

R-22

kg(lbs)

2.2(4.9)

1.2<MS-32>

9.52(3/8)

15.88(5/8) Flared Flared

Max. 40m Max. 40m

Guaranteed operating range

2. Cooling

Heating

Upper limit Lower limit Upper limit Lower limit

Indoor D.B. 35:, W.B. 22.5: D.B. 21:, W.B. 15.5:

D.B. 27: D.B. 20:

Outdoor

D.B. 46:

D.B. -5: D.B. 21:, W.B. 15.5: D.B. -8.5:, W.B. -9.5:

Page 6

3 DATA

Outdoor intake air D.B.(°C)

20 25 30

Indoor

Intake air

D.B.(°C)

Indoor

Intake air

W.B.(°C) 20 20 20 22 22 22 24 24 24 24 26 26 26 26 27 27 27 27 28 28 28 28 30 30 30 30 32 32 32 32

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

CA 4540 4834 5131 4540 4834 5131 4540 4834 5131 5431 4540 4834 5131 5431 4540 4834 5131 5431 4540 4834 5131 5431 4540 4834 5131 5431 4540 4834 5131 5431

SHC(W)

2996 2610 2155 3359 2997 2565 3723 3384 2976 2498 4086 3770 3386 2933 4267 3964 3592 3150 4449 4157 3797 3367 4540 4544 4207 3802 4540 4834 4618 4236

SHF

0.66

0.54

0.42

0.74

0.62

0.50

0.82

0.70

0.58

0.46

0.90

0.78

0.66

0.54

0.94

0.82

0.70

0.58

0.98

0.86

0.74

0.62

1.00

0.94

0.82

0.70

1.00

0.90

0.78

P.C.

1.21

1.23

1.26

1.21

1.23

1.26

1.21

1.23

1.26

1.28

1.21

1.23

1.26

1.28

1.21

1.23

1.26

1.28

1.21

1.23

1.26

1.28

1.21

1.23

1.26

1.28

1.21

1.23

1.26

1.28

CA 4415 4706 5010 4415 4706 5010 4415 4706 5010 5327 4415 4706 5010 5327 4415 4706 5010 5327 4415 4706 5010 5327 4415 4706 5010 5327 4415 4706 5010 5327

SHC(W)

2914 2541 2104 3267 2918 2505 3621 3294 2906 2450 3974 3671 3307 2877 4151 3859 3507 3090 4327 4047 3708 3303 4415 4424 4108 3729 4415 4706 4509 4155

SHF

0.66

0.54

0.42

0.74

0.62

0.50

0.82

0.70

0.58

0.46

0.90

0.78

0.66

0.54

0.94

0.82

0.70

0.58

0.98

0.86

0.74

0.62

1.00

0.94

0.82

0.70

1.00

0.90

0.78

P.C.

1.26

1.29

1.31

1.26

1.29

1.31

1.26

1.29

1.31

1.34

1.26

1.29

1.31

1.34

1.26

1.29

1.31

1.34

1.26

1.29

1.31

1.34

1.26

1.29

1.31

1.34

1.26

1.29

1.31

1.34

CA 4253 4535 4831 4253 4535 4831 4253 4535 4831 5142 4253 4535 4831 5142 4253 4535 4831 5142 4253 4535 4831 5142 4253 4535 4831 5142 4253 4535 4831 5142

SHC(W)

2807 2449 2029 3147 2812 2416 3488 3174 2802 2365 3828 3537 3189 2777 3998 3719 3382 2983 4168 3900 3575 3188 4253 4263 3962 3600 4253 4535 4348 4011

SHF

0.66

0.54

0.42

0.74

0.62

0.50

0.82

0.70

0.58

0.46

0.90

0.78

0.66

0.54

0.94

0.82

0.70

0.58

0.98

0.86

0.74

0.62

1.00

0.94

0.82

0.70

1.00

0.90

0.78

P.C.

1.36

1.39

1.42

1.36

1.39

1.42

1.36

1.39

1.42

1.45

1.36

1.39

1.42

1.45

1.36

1.39

1.42

1.45

1.36

1.39

1.42

1.45

1.36

1.39

1.42

1.45

1.36

1.39

1.42

1.45

1. PERFORMANCE DATA

1) COOLING CAPACITY<1> PKH-1.6GKL PKH-1.6GKLH

CA : Capacity (W) SHC(W) : Sensible heat capacity P.C. : Power consumption (kW) SHF : Sensible heat factor

Page 7

COOLING CAPACITY<2>

Outdoor intake air D.B.(°C)

35 40 45

Indoor

Intake air

D.B.(°C)

Indoor

Intake air

W.B.(°C)

20 20 20 22 22 22 24 24 24 24 26 26 26 26 27 27 27 27 28 28 28 28 30 30 30 30 32 32 32 32

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

CA 4081 4355 4645 4081 4355 4645 4081 4355 4645 4950 4081 4355 4645 4950 4081 4355 4645 4950 4081 4355 4645 4950 4081 4355 4645 4950 4081 4355 4645 4950

SHC(W)

2693 2352 1951 3020 2700 2322 3346 3049 2694 2277 3673 3397 3066 2673 3836 3571 3251 2871 3999 3745 3437 3069 4081 4094 3809 3465 4081 4355 4180 3861

SHF

0.66

0.54

0.42

0.74

0.62

0.50

0.82

0.70

0.58

0.46

0.90

0.78

0.66

0.54

0.94

0.82

0.70

0.58

0.98

0.86

0.74

0.62

1.00

0.94

0.82

0.70

1.00

0.90

0.78

P.C.

1.46

1.49

1.53

1.46

1.49

1.53

1.46

1.49

1.53

1.56

1.46

1.49

1.53

1.56

1.46

1.49

1.53

1.56

1.46

1.49

1.53

1.56

1.46

1.49

1.53

1.56

1.46

1.49

1.53

1.56

CA 3899 4167 4451 3899 4167 4451 3899 4167 4451 4750 3899 4167 4451 4750 3899 4167 4451 4750 3899 4167 4451 4750 3899 4167 4451 4750 3899 4167 4451 4750

SHC(W)

2573 2250 1869 2885 2583 2225 3197 2917 2581 2185 3509 3250 2937 2565 3665 3417 3116 2755 3821 3583 3294 2945 3899 3917 3650 3325 3899 4167 4006 3705

SHF

0.66

0.54

0.42

0.74

0.62

0.50

0.82

0.70

0.58

0.46

0.90

0.78

0.66

0.54

0.94

0.82

0.70

0.58

0.98

0.86

0.74

0.62

1.00

0.94

0.82

0.70

1.00

0.90

0.78

P.C.

1.55

1.59

1.64

1.55

1.59

1.64

1.55

1.59

1.64

1.68

1.55

1.59

1.64

1.68

1.55

1.59

1.64

1.68

1.55

1.59

1.64

1.68

1.55

1.59

1.64

1.68

1.55

1.59

1.64

1.68

CA 3706 3970 4249 3706 3970 4249 3706 3970 4249 4543 3706 3970 4249 4543 3706 3970 4249 4543 3706 3970 4249 4543 3706 3970 4249 4543 3706 3970 4249 4543

SHC(W)

2446 2144 1785 2743 2461 2124 3039 2779 2464 2090 3335 3097 2804 2453 3484 3255 2974 2635 3632 3414 3144 2817 3706 3732 3484 3180 3706 3970 3824 3543

SHF

0.66

0.54

0.42

0.74

0.62

0.50

0.82

0.70

0.58

0.46

0.90

0.78

0.66

0.54

0.94

0.82

0.70

0.58

0.98

0.86

0.74

0.62

1.00

0.94

0.82

0.70

1.00

0.90

0.78

P.C.

1.65

1.70

1.75

1.65

1.70

1.75

1.65

1.70

1.75

1.81

1.65

1.70

1.75

1.81

1.65

1.70

1.75

1.81

1.65

1.70

1.75

1.81

1.65

1.70

1.75

1.81

1.65

1.70

1.75

1.81

PKH-1.6GKL PKH-1.6GKLH

CA : Capacity (W) SHC(W) : Sensible heat capacity P.C. : Power consumption (kW) SHF : Sensible heat factor

Page 8

COOLING CAPACITY<3>

Outdoor intake air D.B.(°C)

20 25 30

Indoor

Intake air

D.B.(°C)

Indoor

Intake air

W.B.(°C) 20 20 20 22 22 22 24 24 24 24 26 26 26 26 27 27 27 27 28 28 28 28 30 30 30 30 32 32 32 32

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

CA 5549 5908 6271 5549 5908 6271 5549 5908 6271 6638 5549 5908 6271 6638 5549 5908 6271 6638 5549 5908 6271 6638 5549 5908 6271 6638 5549 5908 6271 6638

SHC(W)

3274 2777 2195 3718 3249 2696 4161 3722 3198 2589 4605 4195 3700 3120 4827 4431 3951 3385 5049 4667 4202 3651 5493 5140 4703 4182 5549 5612 5205 4713

SHF

0.59

0.47

0.35

0.67

0.55

0.43

0.75

0.63

0.51

0.39

0.83

0.71

0.59

0.47

0.87

0.75

0.63

0.51

0.91

0.79

0.67

0.55

0.99

0.87

0.75

0.63

1.00

0.95

0.83

0.71

SHF

0.59

0.47

0.35

0.67

0.55

0.43

0.75

0.63

0.51

0.39

0.83

0.71

0.59

0.47

0.87

0.75

0.63

0.51

0.91

0.79

0.67

0.55

0.99

0.87

0.75

0.63

1.00

0.95

0.83

0.71

SHF

0.59

0.47

0.35

0.67

0.55

0.43

0.75

0.63

0.51

0.39

0.83

0.71

0.59

0.47

0.87

0.75

0.63

0.51

0.91

0.79

0.67

0.55

0.99

0.87

0.75

0.63

1.00

0.95

0.83

0.71

P.C.

1.82

1.86

1.89

1.82

1.86

1.89

1.82

1.86

1.89

1.93

1.82

1.86

1.89

1.93

1.82

1.86

1.89

1.93

1.82

1.86

1.89

1.93

1.82

1.86

1.89

1.93

1.82

1.86

1.89

1.93

CA 5397 5752 6124 5397 5752 6124 5397 5752 6124 6511 5397 5752 6124 6511 5397 5752 6124 6511 5397 5752 6124 6511 5397 5752 6124 6511 5397 5752 6124 6511

SHC(W)

3184 2704 2143 3616 3164 2633 4048 3624 3123 2539 4479 4084 3613 3060 4695 4314 3858 3320 4911 4544 4103 3581 5343 5004 4593 4102 5397 5465 5083 4623

P.C.

1.90

1.94

1.97

1.90

1.94

1.97

1.90

1.94

1.97

2.01

1.90

1.94

1.97

2.01

1.90

1.94

1.97

2.01

1.90

1.94

1.97

2.01

1.90

1.94

1.97

2.01

1.90

1.94

1.97

2.01

CA 5198 5543 5905 5198 5543 5905 5198 5543 5905 6285 5198 5543 5905 6285 5198 5543 5905 6285 5198 5543 5905 6285 5198 5543 5905 6285 5198 5543 5905 6285

SHC(W)

3067 2605 2067 3483 3049 2539 3899 3492 3012 2451 4315 3935 3484 2954 4523 4157 3720 3205 4731 4379 3956 3457 5146 4822 4429 3960 5198 5266 4901 4462

P.C.

2.04

2.09

2.13

2.04

2.09

2.13

2.04

2.09

2.13

2.18

2.04

2.09

2.13

2.18

2.04

2.09

2.13

2.18

2.04

2.09

2.13

2.18

2.04

2.09

2.13

2.18

2.04

2.09

2.13

2.18

PKH-2GKL PKH-2GKLH

CA : Capacity (W) SHC(W) : Sensible heat capacity P.C. : Power consumption (kW) SHF : Sensible heat factor

Page 9

COOLING CAPACITY<4>

Outdoor intake air D.B.(°C)

35 40 45

Indoor

Intake air

D.B.(°C)

Indoor

Intake air

W.B.(°C) 20 20 20 22 22 22 24 24 24 24 26 26 26 26 27 27 27 27 28 28 28 28 30 30 30 30 32 32 32 32

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

CA 4988 5323 5677 4988 5323 5677 4988 5323 5677 6050 4988 5323 5677 6050 4988 5323 5677 6050 4988 5323 5677 6050 4988 5323 5677 6050 4988 5323 5677 6050

SHC(W)

2943 2502 1987 3342 2928 2411 3741 3353 2895 2360 4140 3779 3349 2844 4339 3992 3577 3086 4539 4205 3804 3328 4938 4631 4258 3812 4988 5057 4712 4296

P.C.

2.19

2.24

2.30

2.19

2.24

2.30

2.19

2.24

2.30

2.35

2.19

2.24

2.30

2.35

2.19

2.24

2.30

2.35

2.19

2.24

2.30

2.35

2.19

2.24

2.30

2.35

2.19

2.24

2.30

2.35

CA 4765 5093 5440 4765 5093 5440 4765 5093 5440 5806 4765 5093 5440 5806 4765 5093 5440 5806 4765 5093 5440 5806 4765 5093 5440 5806 4765 5093 5440 5806

SHC(W)

2811 2394 1904 3192 2801 2339 3574 3208 2774 2264 3955 3616 3209 2729 4145 3820 3427 2961 4336 4023 3645 3193 4717 4431 4080 3658 4765 4838 4515 4122

P.C.

2.34

2.40

2.46

2.34

2.40

2.46

2.34

2.40

2.46

2.53

2.34

2.40

2.46

2.53

2.34

2.40

2.46

2.53

2.34

2.40

2.46

2.53

2.34

2.40

2.46

2.53

2.34

2.40

2.46

2.53

CA 4530 4852 5193 4530 4852 5193 4530 4852 5193 5552 4530 4852 5193 5552 4530 4852 5193 5552 4530 4852 5193 5552 4530 4852 5193 5552 4530 4852 5193 5552

SHC(W)

2673 2281 1818 3035 2669 2233 3397 3057 2648 2165 3760 3445 3064 2610 3941 3639 3272 2832 4122 3833 3479 3054 4484 4221 3895 3498 4530 4610 4310 3942

P.C.

2.49

2.55

2.63

2.49

2.55

2.63

2.49

2.55

2.63

2.71

2.49

2.55

2.63

2.71

2.49

2.55

2.63

2.71

2.49

2.55

2.63

2.71

2.49

2.55

2.63

2.71

2.49

2.55

2.63

2.71

SHF

0.59

0.47

0.35

0.67

0.55

0.43

0.75

0.63

0.51

0.39

0.83

0.71

0.59

0.47

0.87

0.75

0.63

0.51

0.91

0.79

0.67

0.55

0.99

0.87

0.75

0.63

1.00

0.95

0.83

0.71

SHF

0.59

0.47

0.35

0.67

0.55

0.43

0.75

0.63

0.51

0.39

0.83

0.71

0.59

0.47

0.87

0.75

0.63

0.51

0.91

0.79

0.67

0.55

0.99

0.87

0.75

0.63

1.00

0.95

0.83

0.71

SHF

0.59

0.47

0.35

0.67

0.55

0.43

0.75

0.63

0.51

0.39

0.83

0.71

0.59

0.47

0.87

0.75

0.63

0.51

0.91

0.79

0.67

0.55

0.99

0.87

0.75

0.63

1.00

0.95

0.83

0.71

PKH-2GKL PKH-2GKLH

CA : Capacity (W) SHC(W) : Sensible heat capacity P.C. : Power consumption (kW) SHF : Sensible heat factor

Page 10

Cooling capacity correction factors

15 20 25 15 20 25

CA 3,184 3,049 2,930 4,280 4,098 3,939

P.C.

1.01

1.09

1.15

1.56

1.68

1.79

CA 3,650 3,506 3,364 4,905 4,713 4,521

P.C.

1.12

1.20

1.28

1.73

1.86

1.98

CA 4,160 4,003 3,844 5,591 5,380 5,167

P.C.

1.23

1.32

1.42

1.90

2.05

2.19

CA 4,714 4,538 4,370 6,336 6,100 5,874

P.C.

1.35

1.45

1.56

2.09

2.25

2.41

CA 5,312 5,112 4,942 7,139 6,871 6,643

P.C.

1.48

1.59

1.70

2.28

2.46

2.64

CA 5,952 5,724 5,560 8,000 7,693 7,473

P.C.

1.61

1.73

1.86

2.49

2.68

2.87

-10 -5 0Service Ref.

Indoor

intake

air

D.B.(˚C)

PKH-1.6GKL PKH-1.6GKLH

PKH-2GKL PKH-2GKLH

Outdoor intake air W.B.(˚C)

10 15

Service Ref.

PKH-1.6GKL PKH-1.6GKLH

PKH-2GKL PKH-2GKLH

Refrigerant piping length(one way)

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

1.00

0.998

0.995

—

1.4

1.2

1.0

0.8

0.6

1.4

1.2

1.0

0.8

0.6

0.4

-5 5 15 253546 OUTDOOR D.B.(°C)

TOTAL INPUT (RATIO) CAPACITY (RATIO)

INDOOR W.B.(°C)

22 20 18 16

1.4

1.2

1.0

0.8

0.6

1.4

1.2

1.0

0.8

0.6

0.4

-12-10 -5 0 5 10 15 OUTDOOR W.B. (°C)

INDOOR D.B. (°C)

15 20 25

25 20 15

TOTAL INPUT (RATIO) CAPACITY (RATIO)

Service Ref.

PKH-1.6GKL PKH-1.6GKLH

PKH-2GKL PKH-2GKLH

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

1.00

0.993

0.992

2) HEATING CAPACITY

Heating capacity correction factors

0.984

0.983

Refrigerant piping length(one way)

0.978

0.969

0.966

0.961

0.959

0.956

0.950

0.948

0.945

CA : Capacity (W) P.C. : Power consumption (kW)

—

2. PERFORMANCE CURVE

Cooling

Heating

Page 11

Service Ref.

Indoor unit

Outdoor unit

PKH-1.6GKL PKH-1.6GKLH

PUH-1.6VKA

Cool

4,400

1.43

0.07

0.33

0.40

1.36

6.79 30

4,550

(5,220)

1.39

(2.06)

0.07

(0.74)

0.33

(3.38)

0.40

(3.45)

Heat

1.32

6.59 30

6,150

(6,820)

2.21

(2.88)

0.07

(0.74)

0.33

(3.38)

0.40

(3.45)

Cool

5,400

2.19

0.07

0.33

0.40

2.12

9.83 43

Heat

2.14

9.93 43

PKH-2GKL PKH-2GKLH

PUH-2VKA

Outdoor

unit

Indoor

unit

Mode Capacity(W) Total Input(kW)

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

3. ELECTRICAL DATA

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

w : ( ) shows the heater on rating.

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

w : ( ) shows the heater on rating.

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

w : ( ) shows the heater on rating.

Service Ref.

Mode Capacity(W) Total Input(kW)

Input(kW) Current(A)

unit

Indoor

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

unit

Outdoor

Starting current(A)

Service Ref.

Mode Capacity(W) Total Input(kW)

Input(kW) Current(A)

unit

Indoor

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

unit

Outdoor

Starting current(A)

Indoor unit

Outdoor unit

Indoor unit

Outdoor unit

PKH-1.6GKL PKH-1.6GKLH

PUH-1.6VKA

Cool

4,450

1.47

0.07

0.33

0.40

1.40

6.76 32

PKH-1.6GKL PKH-1.6GKLH

PUH-1.6VKA

Cool

4,500

1.51

0.07

0.33

0.40

1.44

6.74 33

Heat

4,600

(5,330)

1.43

(2.16)

0.07

(0.80)

0.33

(3.50)

0.40

(3.57)

1.36

6.57 32

Heat

4,650

(5,450)

1.48

(2.28)

0.07

(0.87)

0.33

(3.66)

0.40

(3.73)

1.41

6.60 33

5,450

PKH-2GKL PKH-2GKLH

PUH-2VKA

Cool

2.23

0.07

0.33

0.40

2.16

9.78 44

PKH-2GKL PKH-2GKLH

PUH-2VKA

Cool

5,500

2.27

0.07

0.33

0.40

2.20

9.86 45

Heat

6,200

(6,930)

2.25

(2.98)

0.07

(0.80)

0.33

(3.50)

0.40

(3.57)

2.18

9.87 44

Heat

6,250

(7,050)

2.29

(3.09)

0.07

(0.87)

0.33

(3.66)

0.40

(3.73)

2.22

9.95 45

Page 12

4. STANDARD OPERATION DATA

Service Ref.

Without electric heater With electric heater

Capacity W Input

Indoor unit Service Ref.

Without electric heater With electric heater

Phase, Hz Volts Amperes

Outdoor unit Service Ref.

Phase,Hz Volts Amperes Discharge pressure Suction pressure Discharge temperature Condensing temperature

V A

MPa

(

kg/cm

MPa

(

kg/cm

˚C ˚C

PKH-1.6GKL

PKH-1.6GKLH

CoolingMode

4,500

1.51

Heating

4,650

[5,450]

1.48

[2.28]

PKH-1.6GKL

PKH-1.6GKLH

1, 50

240

0.33

PUH-1.6VKA

0.33

[3.66]

1, 50

240

6.74

1.77

)

(

)

18.0

0.54

)

(

)

5.5 79

6.60

1.85

(18.8)

0.41 (

4.2 83

)

PKH-2GKL

PKH-2GKLH

Cooling Heating

5,500

2.27

6,250

[7,050]

2.29

[3.09]

PKH-2GKL

PKH-2GKLH

1, 50

240

0.33

PUH-2VKA

0.33

[3.66]

1, 50

240

9.86 9.95

1.92

(19.6)

0.46

(

4.7

)

2.08

(21.2)

0.37 (3.8)

87 93

51 54 Suction temperature Ref.pipe length

Intake air temperature

Discharge air

Indoor side Refrigerant circuit Electrical circuit Total

temperature

Intake air temperature

side

Outdoor

SHF

D.B.

W.B.

D.B. D.B.

W.B.

˚C

˚C ˚C ˚C ˚C ˚C

5 27 19

13.3 35 24

0.76

0.10

0.6 5

20 15

39.2 7 6

4–2

55 27 20 19 15

11.7 45.4 35 7 24 6

0.69

0.12

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) = 10.2(kg/FF)

5. OUTLET AIR SPEED AND COVERAGE RANGE

Service Ref.

Item

Air flow m3/ Air speed m/

min

sec

Coverage range m (ft)

The air coverage range is the value up to the position where the air speed is 0.25m/sec. when air is blown out horizontally from the unit at the Hi notch position. The coverage range should be used only as a general guideline since it varies according to the size of the room and the furniture inside the room.

PKH-1.6GKL

PKH-1.6GKLH

5.3

10(32.8)

PKH-2GKL

PKH-2GKLH

5.3

10(32.8)

Page 13

6. NOISE CRITERION CURVES

UNIT

WALL

MICROPHONE

Ambient temperature 27:

Test conditions are based on JIS Z8731

PKH-1.6/2GKL PKH-1.6/2GKLH

OCTAVE BAND SOUND PRESSURE LEVEL, dB re 0.002 MICRO BAR

APPROXIMATE THRESHOLD OF REARING FOR CONTINUOUS NOISE

63 125 250 500 1000 2000 4000 8000

BAND CENTER FREQUENCIES, Hz

NOTCH

SPL(dB)

43 36

LINE

NC-70

NC-60

NC-50

NC-40

NC-30

NC-20

Page 14

BYOFF

ONSTAND

HEATCOOL

OFF BY

ON STAND

COOL HEAT

ÅrÇoÇoÅqÅ@ëOñÅ@ÇeÇqÇnÇmÇs ÅrÇoÇoÅqÅ@ëOñÅ@ÇeÇqÇnÇmÇs

r.SLI

m m

MITSUBISHI ELECTRICMITSUBISHI ELECTRIC

r.SLI

m m

MITSUBISHI ELECTRICMITSUBISHI ELECTRIC

Right side

Less than 15

245

235

Auto vane

Front view

198 Air intake

340

715 Air intake 225

340 Air intake 80 280 Air intake 233

990

Left side

Knock out hole for left piping. Refrigerant pipe. Drain pipe. Wiring hole.

245

(Necessary clearance for Unit installation)

Right side

Allowing clearances Front view

Less than 130

50 or more 150 or more

180 or more

30 or more

for bolts

Left-rear piping hole

left-rear piping

R52.5

Installation plate balance point hole

Details of installation plate

49-[5hole for tapping screw

Knock out hole for right-rear piping

Right-rear piping hole

Unit center

14-[14hole

Knock out hole for

425

420

170

190

210

230

322

0 35 55 80

130 190

230 272 310

3595150

205

260

320

345

495

135

190

245

300

360

405

495

w1 Sleeves are available on the market. w2 This size shows the lower end of through hole.

[90~[100[90

Through holeSleeve w1

1.6 . 2

Model

R52.5

Gas pipe

Liquid pipe

Terminal block for

Terminal block to outdoor unit

Filter grip

Service panel (Power supply access)

5/8F

Gas pipeLiquid pipe

3/8F1.6 . 2

Model

(Right side piping

installation)

(Left side piping

installation)

Unit drain pipe O.D.20

Front view(to open the grille)

700 (Flexible hose total length800)

581

449

31 280

Knock out hole for under piping Refrigerant piping.Drain pipe. Wiring hole

12-Louvers(manual)

Lower side

395400

190

70 35

160

235

705 Air outlet

power supply

153

OUTLINES AND DIMENSIONS

1. INDOOR UNIT PKH-1.6GKL / PKH-2GKL PKH-1.6GKLH / PKH-2GKLH

Unit : mm

Page 15

PKH-1.6GKL / PKH-2GKL PKH-1.6GKLH / PKH-2GKLH

WIRING DIAGRAM

Page 16

REFRIGERANT SYSTEM DIAGRAM

PKH-1.6GKL, PKH-1.6GKLH / PUH-1.6VKA2 PKH-2GKL, PKH-2GKLH / PUH-2VKA2

Refrigerant pipe

Indoor unit

Indoor heat exchanger

Pipe temperature thermistor (RT2)

Distributor with strainer

PKH-1.6, 2 (O.D.3.2 I.D.1.8 L500)

Restrictor valve

Capillary tube

Strainer

(option)

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

Flexible tube

Flared connection

Refrigerant pipe (option)

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

Ball valve

Ball valve (with Service port)

Refrigerant flow in cooling Refrigerant flow in heating

Oil separator

Service port

Compressor

PUH-1.6 (O.D.3.2 I.D.1.8 L400) PUH-2 (O.D.4.0 I.D.2.0 L430)

Strainer

Service port

Accumulator

4-way valve

<4-Way valve solenoid coil>

Heating ON Cooling OFF

High pressure control switch

Outdoor unit

Outdoor heat exchanger

Bypass valve

Restrictor valve

Strainer

Unit : mm

Outdoor coil thermistor (TH)

Capillary tube

Page 17

OPERATION FLOW-CHART

MAIN OPERATION

START

YES

w 1

YES

w 4

Set time complete

YES

w 2

Trouble

Trouble STOP

PROTECTION DEVICE

SELF HOLD

Remote controller

trouble display

YES

w 3

Remote controller

operation display

Operating mode

(COOL)

Operating mode

(DRY)

Operating mode

(HEAT)

w 6

Operating mode

(FAN)

Auto COOL/HEAT

operation

YES

COOL operation

YES

DRY operation

YES

HEAT operation

YES

FAN operation

w 7

Power circuit

breaker

YES

Check SW

ON twice

Operation SW

“OFF” timer

“ON” timer

Set time

complete

STOP

PROTECTION DEVICE

SELF HOLD RELEASE

Remote controller

indicator lamp OFF

Indoor side

Fan STOP

Auxiliary heater OFF

Outdoor side

Compressor OFF

Fan STOP

Four-way valve OFF

w 5

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-Pipe temperature thermistor malfunction

● P4-Drain sensor malfunction

● P5-Drain overflow

● P6-Coil frost/overheat protection

● P7-System error

● P8-Outdoor unit trouble

w3 The CHECK switch 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 dip switch setting. w7 In FAN mode, fan speed and vane operation depend on the remote controller setting. (Compressor is OFF.)

Page 18

COOLING OPERATION

COOL operation

Four-way valve/OFF

Vane setting notch

Initial

COOLING

w 8

50 deg downward angle 60 deg downward angle

Vane horizontal

w 9

YES

Vane initial

setting

Vane

YES

Fan speed

LOW

YES

Downward discharge

1 hour

YES

airflow

Compressor

thermostat

Allowance

cancel

YES

w 11

YES

compressor operation

w 10

Cooling area

3-minute

time delay

3-minute

Coil frost

protection

6-minute

YES

Allowance

period

6 minute

time delay

Allowance set

YES

Coil frost protection

YES

10-minute

compressor operation

Allowance cancel

Coil frost

prevention

16-minute

compressor operation

YES

Indoor pipe

temperature is

1°C or lower

Compressor ON

YES

Coil frost

prevention

Compressor OFF

Pipe

YES

3-minute

time delay

temperature is

10°C or higher

Defrosting protection

detection temperature

-1°C or lower

6-minute

time delay

Coil frost

prevention release

1 min continue

FAN speed

LOW

FAN speed

LOW 5 min

elapse

YES

Outdoor unit

YES

trouble

w8 When operation stops or changes to cooling or dry mode, the auto vane turns 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 pipe temperature thermistor reads -15°C or below for 3 minutes, the compres-

sor will stop for 6 minutes.

w11 Heating area : Pipe temperature is more than 5 degrees above the room temperature.

Cooling area : Pipe temperature is more than 5 degrees below the room temperature. FAN area : Pipe temperature is within 5 degrees either way of the room temperature.

Page 19

HEATING OPERATION

Heat operation

YES

w 11

YES

w 10

Heating area

Defrost

30 min. elapse

YES

Outdoor unit trouble

Outdoor unit

trouble

Vane setting notch

Vane initial setting

Four-way valve ON

w 9

Allowance cancel

Very low airflow

Compressor OFF

AUTOMATIC COOLING/HEATING OPERATION

w 17

w 15

initial

HEATING

YES

defrosting

Hot adjust in process

Compressor ON

Compressor

thermostat ON

Indoor piping

-15°C or lower

trouble

w 16

YES

Outdoor unit

FAN SPEED

Auto COOL/HEAT

operation

Initial mode

T1 To

COOL mode

YES

3 min.restart

prevention

YES

6 min. restart

prevention

Hot adjust start

FAN SPEED very low

Compressor ON

HEAT mode

10-minute

compressor

operation

Allowance cancel

w 11

Heating

area

FAN STOP

w 11

FAN area

20 min.elaspe

YES

FAN area

Heating area

w 11

FAN area

Cooling area

Defrost operation

START

Four-way valve

OFF

YES

Defrost release

Indoor piping 55°C or lower

Auxiliary heater

Indoor piping

60°C or higher

YES

Auxiliary heater OFF

Overheat remote

START

Indoor unit

70°C or higher

Allowance

period

Overload protect

YES

Auxiliary heater

thermostat ON

Auxiliary heater ON

6-minute restart

prevention

Allowance set

Compressor OFF

YES

FAN SPEED

setting notch

Hot adjust

Airflow 10% up

Indoor piping

35°C or higher

HOT adjust

5 min. elapse

YES

Low

FAN SPEED

Low 2 min.

elapse

YES

release

PKH-GKLH

Type

YES

3-minute

Auxiliary heater

OFF

YES

Pipe temperature

is 60°C or higher

YES

FAN speed

Low notch

YES

FAN setting notch

YES

HEAT operation

T1 ] (To + 2)

After 15min. T1 ] (To + 2)

HEAT operation

YES

Cool mode

set

COOL mode

T1 [ (To - 2)

After 15min.

T1 [ (To-2)

COOL operation

w15 ( i ) Until Low airflow is set while in 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, COOLor HEAT mode is selected automatically. w17 T1 : Room temperature.

To : Set temperature.

Page 20

DRY OPERATION

DRY

operation

Four-way valve / OFF

Vane

setting notch

YES

Initial dry

operation

YES

Vane initial setting

w12

Room temperature is

18°C or lower

During

compressor ON

YES

3-minute

compressor

operation

YES

Compressor & thermostat ON

YES

3-minute

time delay

Compressor &

thermostat

YES

Compressor ON

time completes

YES

10-minute compressor

OFF timer start

Compressor OFF

Fan STOP

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. Also, when the compressor OFF and the pipe temperature

is 26°C or less, the fan stops, or when the compressor OFF and the pipe temperature is below 6°C, the fan speed changes to LOW mode. It is not possible to set the fan speed with the remote controller

w14

10-minute

compressor

OFF

YES

Compressor ON

time set

Compressor ON

Fan speed LOW

w13

w14

Page 21

ON/OFF

CHECK

ADDRESS UNIT No. FUNCTION No. SELECTION No.

AM PM

TEST RUN

FUNCTION

˚C

TEMP.

MICROPROCESSOR CONTROL

1. OUTLINE OF MICROPROCESSOR CONTROL

INPUT to remote controller

● 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)

Indoor unit

Remote controller board

● Processes and transmits orders.

Non-polar, two-wire cable maximum length 500 meters (WIRED only)

Signal

12VDC

OUTPUT to remote controller

Remote controller

● LCD indicator

INPUT from indoor unit

● Room temperature thermistor (RT1)

● Pipe temperature thermistor (RT2)

OUTPUT to indoor unit

● Auto vane’s angle setting.

● Booster heater ON-OFF Control.

● Emergency stop.

Independent Control of Outdoor Unit

● Compressor protection device working

● Defrosting START-STOP

● Fan speed control.

● Crankcase heater control

ON-OFF.

● Self diagnostic function

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 dip switch on indoor controller board.

● Transmits the power to remote controller.

123

Polar three-wire cable

Outdoor unit

12VDC

1 2 3

● Compressor and outdoor fan : ONOFF.

● Operation mode

OUTPUT to outdoor unit

change :COOLHEAT.

Page 22

Minimum 3 minutes w1

Thermostat

Indoor fan

Auto vane

Booster heater

Compressor

LOW or HIGH

Initally 10 degrees

(Changeable by remote controller setting)

LOW or HIGH

OFF

CLOSE CLOSE

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.

ON/OFF

CHECK

ADDRESS UNIT No. FUNCTION No. SELECTION No.

AM PM

TEST RUN

FUNCTION

˚C

TEMP.

2. INDOOR UNIT CONTROL

2-1 COOL operation

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

f ”.

3 Press the i TEMP. button to set the desired temperature.

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

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

W1 Even if the room temperature rise above the set temperature during this period, the compressor will not start until this period

has ended.

(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. The compressor maintains the previous state when the discharge temperature minus the set temperature is 0°C or more, or lower than 1°C.

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

To prevent indoor coil frost, the compressor will stop when the indoor coil thermistor (RT2) reads 1°C or below after the compressor has been continuously operated for at least 16 minutes or more. When the indoor coil temperature rises to 10°C or above, the compressor will start in a 3-minute(w2) time delay. w2 When the indoor coil temperature is -1°C or less, the compressor starts in 6 minutes.

NOTE : By turning OFF the dip switch SW1-3 on indoor controller board, the start temperature of coil frost prevention changes

from 1°C to -3°C.

Page 23

(2) Indoor fan control

5 minutes

SET

LOW

12 13

5 minutes

SET

LOW

OFF

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. (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 detec-

tion.

2 Release of outdoor unit abnormality detec-

tion.

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.

(3) Auto vane control

Auto vane position is set to 10 degrees 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 airflow direction. (ii) Discharge direction can be changed with VANE button.

1 Fan speed : LOW

10°

50°

60°

(SWING)

2 Fan speed : HIGH

10°

30°

50°

60°

(SWING)

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

mode.

<VANE POSITION> 1 Fan speed : LOW

10°

50°

60°

Vane is in motion at the angle of 50° or 60°. (After an hour, the vane is automatically set at the angle of 10°)

AUTO

RETURN

2 Fan speed : HIGH

10°

30°

50°

60°

when 50 degrees or 60 degrees airflow is selected with the LOW fan speed in COOL operation, “1Hr” will appear right side of the air direction display. One hour later, the airflow direction returns to 10 degrees automatically and “1Hr” will disappear. If the airflow direction is set to 10 degrees during “1Hr” indication, the time counting for AUTO RETURN is cancelled.

As for the unit operted with only wired remote controller ,

Page 24

<Auto vane drive> (a) The vane is driven by DC12V motor. (b) Airflow direction is selected depends on the number of pulse were sent. (c) Before start driving the auto vane, detect the standard position first, output the number of pulse to each Airflow. (d) The speed of the auto vane drive for both open and close are set at 200 pulse/sec. (e) Method of driving the auto vane.

Detecting the standard position:

Output 1600 pulse to the opening direction.

Position setting:Output the number of pulse indicated no below chart to the closing direction.

Vane drive

Horizontal Downward A Downward B Downward C 362

(4) Detecting abnormalities in the outdoor unit

After the compressor has been continuously operated for 3 minutes, if the difference between the pipe 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 controller. RANGE A: Pipe temperature is more than 5 degrees above the room temperature. RANGE B : Pipe temperature is within 5 degrees either way of the room temperature. RANGE C : Pipe temperature is more than 5 degrees below the room temperature.

Pipe temperature minus room temperature

(degree)

RANGE A

The number of pulse output after detecting the standard position

1600

697 570 465

-5

RANGE B

RANGE C

Page 25

2-2 DRY operation

Minimum 3 minutes w1

Thermostat

Indoor fan

Auto vane

Booster heater

Compressor

Initally 10 degrees discharge

(

Changeable by remote controller setting

)

LOW speedLOW speed

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.

ON/OFF

CHECK

ADDRESS UNIT No. FUNCTION No. SELECTION No.

AM PM

TEST RUN

FUNCTION

˚C

TEMP.

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

3 Press the i TEMP. button to set the desired temperature.

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

button is press one time DRY 19 to 30°C.

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

has ended.

Page 26

(1) Compressor control

Compressor OFF

6°C or more

Below 6°C

STOP

Pipe temp. Fan

LOW

All LOW

Compressor ON

13-minute time delay

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

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

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

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

The compressor starts intermittent operation when the power is turned ON with room temperature above 18°C. The compressor ON/OFF time depends on the thermostat ON/OFF and the 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 above 26°C—28°C with thermostat ON, the compressor will operate for 4 more minutes and then stop for 3 minutes.

● If the room temperature 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 fan runs on LOW speed when the pipe temperature is 6°C or more, or the compressor is OFF and the pipe temperature is below 6°C.

(a)During compressor OFF

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

● When the pipe temperature is below 6°C, the indoor fan will run on LOW speed.

(b)During compressor ON

● The indoor fan runs on LOW speed. <Dry mode>

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

Fan control in DRY operation.

(3) Auto vane

The same operation as the in COOL.

(4) Detecting abnormalities in the outdoor unit

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

Page 27

2-3 HEAT operation

ON/OFF

CHECK

ADDRESS UNIT No. FUNCTION No. SELECTION No.

AM PM

TEST RUN

FUNCTION

˚C

TEMP.

ON OFF

STAND BY

COOL

Unit Display

HEAT

1 Press POWER ON/OFF button. 2 Press the MODE button to display “ g ”. 3 Press the i TEMP. button to set the desired temperature.

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

is press one time Heating 17 to 28°C.

[ STANDBY ]

The [ STANDBY ] symbol is displayed from heating operation start until

the heated air begins to blow and during the defrost operation.

Thermostat

Indoor fan

Auto vane

Booster heater

Compressor

Power ON lamp

STAND BY lamp

ON OFF

Operation starts by POWER button ON.

10°

Hot adjustment

From POWER ON until

warm begins to blow

Room temperature becomes equal to set temperature.

LOW

Depends on remote controller setting

Minimum 3 minutes w2

Room temperature falls below set temperature.

Extra LOW w1Extra LOW w1

10°

LOW or HIGHLOW or HIGH

Depends on remote controller setting

Hot adjustment

Operation stops by POWER button OFF.

w1 Changeable by indoor dipswitch SW1-5 and SW1-6.

OFF during thermostat OFF hot adjustment defrosting

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

(1) Compressor control

13-minute time delay

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

2The compressor runs when the room temperature is 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 pipe temperature 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.

Page 28

(2) Indoor fan control

(a) Normal control

(!)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 dip switch SW1-5 and SW1-6, If the pipe temperature 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.

(@)Hot adjustment

Hot adjustment is a warm-up for HEAT operation <Start conditions> The hot adjustment works under any of the following 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. (#)The indoor fan stops when the indoor coil temperature is within 5 degrees either way of room temperature. ($)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

Auto vane position is set to 70 degrees airflow at the start-up of Heat operation.

The airflow direction can be changed by the remote controller setting.

10°

In the following cases, airflow direction becomes 10° 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 the thermostat OFF

30° 60°

70°

SWING

Page 29

(4) Booster heater control [PKH-1.6GKLH, PKH-2GKLH]

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 pipe temperature thermistor rises to 60°C or above, the booster heater cannot work. When the pipe temperature 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. ( i ) During compressor ON while hot adjustment is set.

1 If the difference between the pipe 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 starts, 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. 3 Within 20 minutes after entering RANGE C, if the temperature difference does not return to RANGE B,the outdoor unit

is deemed abnormal.

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

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

( ii ) During compressor ON in defrosting

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. When RANGE B does not change to RANGE Aafter 20 minutes have passed since RANGE C had outdoor unit is determined to be abnormal.

( iii ) During compressor OFF

Not detecting abnormalities.

(6) Pipe temperature 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 pipe temperature and room temperature enters the RANGE C.

●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 between the pipe temperature and room temperature gets out of RANGE Aand 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: Pipe temperature is more than 5 degrees above room temperature.

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

Pipe temperature minus room temperature

(degree)

-5

RANGE A

RANGE B

RANGE C

Page 30

Mode change (HEAT COOL)

When room temperature becomes 2 degrees 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 To- 1

To- 2

Compressor

Start

HEAT mode HEAT mode

Mode change

15 minutes

Minimum 3 minutes

COOL mode

(COOL HEAT)

ON OFF

-9 0 1020304046

-8.5

Cooling range

(Outside air temperature)

Heating range

-5

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

ON/OFF

CHECK

ADDRESS UNIT No. FUNCTION No. SELECTION No.

AM PM

TEST RUN

FUNCTION

˚C

TEMP.

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

3 Press the i TEMP. button to set the desired temperature.

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

button is press one time Auto 19 to 28°C.

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

(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.

Page 31

10˚

30˚

HEAT•FAN/ COOL•DRY OPERATION

60˚/ 50˚

70˚/ 60˚

Swing

Changes by pressing the VANE button.

ON/OFF

CHECK

ADDRESS UNIT No. FUNCTION No. SELECTION No.

AM PM

TEST RUN

FUNCTION

˚C

TEMP.

2-5 Auto vane control

To change the airflow direction, press VANE button. NOTE: Airflow direction can be set by the indoor dip switch SW5-1.

Available in COOL operation with fan speed on HIGH or in HEAT operation. Unavailable in DRY operation. If fan speed changes from HIGH to LOW during 30° downward airflow in COOL mode, the direction automatically changes to 10°.

(1) COOL/DRY operation

At the start-up of COOL or DRY operation, the airflow direction in automatically set to 10°. After, it can be changed to another direction with VANE button on the remote controller.

When 50° or 60° airflow is set with fan speed on LOW, “1Hr” appears below the room temperature display. One hour later the direction changes to 10° degrees, automatically and “1Hr” disappears.

(2) HEAT operation

At the start-up of HEAT operation, discharge direction depends on the setting of the last operation. After, it can be changed to another direction with VANE button. The discharge direction shifts to 10° regardless of the remote controller settings under any of the following conditions.

● Thermostat OFF

● Defrosting

● Indoor fan speed EXTRA-LOW in hot adjustment

Page 32

ON/OFF

CHECK

ADDRESS UNIT No. FUNCTION No. SELECTION No.

AM PM

RESET

AM PM

TEST RUN

FUNCTION

˚C

MODE FAN

VANE

TEMP.

START

STOP

HR.

MIN.

ADDRESS UNIT No. FUNCTION No. SELECTION No.

FUNCTION TEST RUN

CHECK

ON/OFF

MODE FAN

RESET

VANE

AM PM

TEMP.

START

STOP

MIN.

1 Press the ON/OFF button to turn it ON. 2 Press the STOP or START button (TIMER SET).

·Time can be set while the following symbol is displayed.

OFF timer : A , B is displayed.

˚C

ON timer : A , B is displayed. 3 Use the HR. and MIN. buttons to set the desired time. 4 Cancelling the timer.

To cancel the OFF timer, press the STOP button.

To cancel the ON timer, press the START button.

HR.

·It is possible to combine both OFF and ON timers.

·Pressing the ON/OFF button of the remote controller during

timer mode to stop the unit will cancel the timers.

▼

5 4 6

<Before test run> Measure an impedance between the power supply terminal block on the outdoor unit and the ground with a 500 V Megger and check that it is equal or greater than 1.0M"".

1 Turn on the main power to the unit.. 2 Set the Nrm/Set selector switch (on the back of the controller)to <Set>.

AThe FUNCTION , TEST RUN and CHECK begin to blink.

3 Press the MIN. button.

B TEST RUN and current operation mode are displayed.

4 Press the MODE button to activate COOL mode, then check

whether cool air in blown out from the unit.

5 Press the

FAN button and check whether strong air is blown

out from the unit.

5 Press the

VANE button and check whether the auto vane

operates properly.

7 Press the ON/OFF button to stop the test run.

After trial run is complete, set the Nrm/Set selector switch to <Nrm.>

Note :

·Point the remote controller toward the inside unit’s receiver

while steps

though 77.

·It is not possible to run the unit in FAN or DRY mode.

Page 33

(1) Pipe temperature code

Code

Pipe

temperature

Pipe

temperature

Thermistor

abnormality

Code

-40~2(1)˚C 9

~45˚C

3(2)~10˚C ~15˚C ~20˚C ~25˚C ~30˚C

~90˚C

~35˚C ~40˚C

10 11 12 13 14 15

~50˚C

~55˚C

~60˚C

~70˚C

678

1 ON

1.2 ON

1-2 OFF

SW3

During the test run, the pipe temperature code from 1 to 15 is displayed on the remote controller instead of room tem-

perature. 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.

2-6 Emergency operation

When the remote controller or microprocessor malfunctions but all other parts are normal, emergency operation is started by setting the dip switch 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 dip switch SW3-1 to ON and SW3-2 to OFF. For emergency heating, set the dip switch SW3-1,2 to ON.

Emergency cooling

Emergency heating

Normal operation

Microcessor board

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, 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.

Page 34

2-7 Interlock with ventilation system (LOSSNAY)

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

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

(1) System organization

(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) Required 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.

Indoor controller

Remote controller

Power supply 50Hz 220 240V

10m

Connecting wire

0.13mm or over Connecting wire

solid wire,

1.6 or 2.0 (field supplied)

Circuit breaker (field supplied)

HIGH

LOSSNAY control switch (PZ-05SLB

Insulation is needed

N L

DAMPER

2-E)

Connector

LOW

Mr. SLIM

board

CN51

ORN

RED

BRN

YLW

GRN

Power supply for Mr. SLIM 220 240V AC

Relay box

(PZ-12RB-E)

YLW

ORN

RED

WHT

RED

HIGH

WHT

LOSSNAY

Terminal block

ORN

LOW

RED

HIGH

WHT

RED

DAMPER

ORN

DAMPER

WHT

7 6 2

Junction box (field supplied)

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

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

Terminal block

NOTE: For further information, refer to the

LOSSNAY technical & service manual.

LOSSNAY

LOW

HIGH

DAMPER

ORN

RED

WHT

RED

ORN

WHT

Page 35

2-8 Dip switch functions

Each figure shows the initial factory setting.

1. On remote controller board (Option:Wired remote controller).

(1) SW17(Address selector)

1 2 3 4 5 6 7 8

ON OFF

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

(2) SW18(Function selector)

1 2 3 4

ON OFF

SW18-1) Switch for timer

OFF:Single day ON:timer every day

SW18-2) Switch for filter sign

OFF:filter sign absent ON :filter sign present

SW18-3) Switch for filter sign time setting.

OFF:100Hr ON:2500Hr

SW18-4~8) Not yet used.

2. On indoor controller board

(1) SW1 (Mode selector)

1 2 3 4 5 6 7 8 9

ON OFF

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

OFF:AUTO mode for models with heat pump

ON :Fan mode for models without heat pump SW1-2) Not for use SW1-3) Switch to change the temperature to start coil frost prevention

OFF:1°C

ON :-3°C SW1-4) 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 SW1-5) Switch for fan speed during thermostat OFF in HEAT operation

OFF:EXTRA LOW

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

OFF:EXTRA LOW or LOW(set with SW1-5)

ON :LOW or HIGH(set with remote controller) SW1-7) Switch for detecting abnormalities in the outdoor unit abnormality detection

OFF:When an abnormality occurs,it is detected.

ON :Even if an abnormality occurs,it can not be detected. SW1-8) Switch for auto restart function

OFF:This function does not work

ON :This function works. SW1-9, 10) Not yet used.

5678

(2) SW2 (Address selector)

1 2 3 4 5 6

ON OFF

Used in setting the unit-address for group control. For further information, refer to page 52.

Page 36

(3) SW3 (Emergency operation switch)

Normal operation

1 2

ON OFF

For emergency cooling

1 2

ON OFF

(4) SW5 (Model selector)

1 2 3 4

ON OFF

SW5-1) Not yet used SW5-2) OFF:For models with heat pump

ON :For models with cooling only SW5-3) Not for use. SW5-4)Keep this switch at OFF.

For emergency heating

1 2

ON OFF

(5) SW6 (Address selector)

1 2 3 4

ON OFF

SW6-1 OFF ON(Twin NO.1) SW6-2 OFF ON(Twin NO.2)

Single control

SW6-3 OFF OFF SW6-4 OFF OFF

(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

PKH-1.6GKL

PKH-1.6GKLH

ON OFF

1 2 3

PKH-2GKL

PKH-2GKLH

ON OFF

1 2 3

(7) SW8

1 2 3 4

ON OFF

SW8-1~5) Not for use. SW8-6) OFF:For 240, 230V power supply

ON :For 220V power supply

Twin control

Triple control

ON(Triple NO.1) ON(Triple NO.2) ON(Triple NO.3)

(8) SW9 (Model selector)

1 2 3 4

ON OFF

SW9-1~5) Keep this switch.

Page 37

3. OUTDOOR UNIT CONTROL

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

60 minutes 60 minutes 60 minutes 60 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.

60 minutes 60 minutes

10 minutes

3 minutes

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 42.)

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

tective 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 POWER 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

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

Page 38

Outdoor fan

Compressor

4-way valve

Bypass valve

Auto vane

Indoor fan

Outdoor unit

Indoor unit

Set direction

OFF

ON OFF

OFF

Set direction

Defrosting starts.

Defrosting stops.

3-5 Defrosting in HEAT mode

(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.

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.

(2) During defrosting

● Even if the thermostat turns OFF, defrosting continues.

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

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

operation has ended.

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

Page 39

(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.

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

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 minutes.

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

(4) Termination conditions

Defrosting finishes when any of the following conditions are satisfied.

1Defrosting has continued for 15 minutes. 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

1When the unit stops due to the coil frost prevention, the bypass valve turns ON. When one hour has 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.

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.

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, after the compressor stops.

Page 40

3-7 Service functions

(1) Compulsory defrosting

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

● During HEAT mode

● The compressor is ON.

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

ON)

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

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

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

(2) Fixed fan-output

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

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

(3) Function of switches on the outdoor controller board

SW1: Clears the check code memory (push-button switch) SW2: Switches the output state indication and the check code display (push-button switch) SW3-1,2: Switches the output state indication items (dip switch) For further information, refer to page 45.

(4) 100% fan output

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

(5) Time shortening

Short circuit of the connector CN21 shortens the time as follows

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

Page 41

9 TROUBLESHOOTING

1. TROUBLE IN TEST RUN

Symptom Cause Check points

The display “CENTRALLY

CONTROLLED” on remote controller dose not disappear.

When remote controller

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

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

2) Timer adapter is connected to the remote controller.

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

1) Signal 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 SW17-

7 ON to make it sub controller.

2 Connect the sub controller to the unit, and

turn circuit breaker ON.

● If the display “centrally controlled” disap-

pears, replace the original remote controller.

● If the display remains the same, replace the

indoor controller board.

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.

Remote controller

Operating Display

1 2

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

When remote controller

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

Despite turning POWER

button ON, the remote controller display does not appear.

1) Short circuit of indoor/outdoor connecting wire

2) Short circuit of transmission wire.

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

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 CN2D.

7) Blown fuse.

8) Circuit breaker OFF.

1), 2) Check the wire

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

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

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.

Page 42

ON/OFF

CHECK

ADDRESS UNIT No. FUNCTION No. SELECTION No.

AM PM

RESET

AM PM

TEST RUN

FUNCTION

˚C

MODE FAN

VANE

TEMP.

START

STOP

HR.

MIN.

ON/OFF

CHECK

ADDRESS UNIT No. FUNCTION No. SELECTION No.

AM PM

TEST RUN

FUNCTION

˚C

TEMP.

2. SELF DIAGNOSTIC FUNCTION WITH REMOTE CONTROLLER (WIRELESS REMOTE CONTROLLER)

(1) Turn on the main power of the unit. (2) Set the adjusting switch on the back of the

wireless remote controller to “Set”, then FUNCTION , TEST RUN and CHECK will start lighting.

★(3) Press the HR. button , then CHECK will

start blinking.

★(4) Send the signal from the remote controller

to the unit with pressing HR. button. If the buzzer sound is heard and the ON/OFF lamp (Unit display) blinks, refer to the following table.

Buzzer sound

1 second

(0.5 second interval)

Beep

The number of

ON/OFF lamp(Unit

display)blinking and

buzzer sound

1(P1) 2(P2)

The number of ON/OFF

lamp(Unit display) blinking

This

corresponds to the number of

buzzer sound

Irregular point

Irregular intake sensor

Irregular piping sensor 3(P3) Signal transmission error 4(P4) 5(P5)

Irregular drain sensor

Irregular drain pump

Freezing protection/ 6(P6)

overheating protection is

working 7(P7) System error

8(P8)

Irregular outdoor unit

Remove the battery cover on the back side of the wireless remote controller, display will start flashing when the “Set” switch is turned on. For operations marked “★”, point the transmitter to the wireless receiver, and make sure that you will hear a short beep from the receiver.

Turn the adjusting switch to “Set”

Display will start flashing

(Refer to page 44 in detail) When there is any error, receiving sound beeps.

★(5) Push the POWER ON/OFF button and can-

cel the test run.

(6) After completing a test run, be sure to turn

the adjusting switch back to “Nrm”.

For operations marked “★”, point the transmitter to the wireless receiver, and make sure that you will hear a short beep from the receiver. When the other than main unit is operated by the wireless remote controller, the receiver beeps an ineffectual beep 3-times.

Page 43

(WIRED REMOTE CONTROLLER) : Optional part

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. (1) ON the set temperature display part, “CHECK” appears, and the unit

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

Example

CHECK mode

Check

code

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

trol, 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.

Unit

address

Check button

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 MODE” 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.)

B. For group control using one remote controller

(1) Pressing the CHECK button on the remote controller twice starts the self diagnostic function. (2) Press the TEMP. button 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.

(3) 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.

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

▲

▲ ▼

▼

Page 44

Check

code

EO Signal transmitting/receiving

Diagnosis of malfunction Cause Check points

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.

P1P2Abnormality of room temper-

ature thermistor (RT1)

Abnormality of pipe temperature thermistor (RT2)

P3 Signal transmission error

(Remote controller does not respond to indoor controller signal.)

P4 Abnormality of drain sensor 1) Bad contact of transmission

1) Bad contact of thermistor

2) Damaged thermistor

1) Bad contact of transmission wire

2) Signal transmitting/receiving circuit is abnormal.

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

wire

2) Damaged thermistor

1) Check the thermistor.

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

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

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 attach CN40 to the following units.

● Second unit in twin control

● Second and third units in triple control

● Sub units in group control

1 and 2 of CN40 and

P5 Malfunction of drain pump 1) Malfunction of drain pump

P6 Freezing protection/

overheating protection is working.

P7 System error 1) Wrong address-setting

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

2) Damaged drain sensor

1) Short cycle of air cycle

2) Dirty air filter

3) Damaged fan

4) Abnormal refrigerant

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

3) Wrong SW6-setting

connecting wire

2) Reversed phase

3) Protection device is working

4) Damaged outdoor coil thermistor

1) Clear obstructions from the air cycle.

2) Clean the air filter

3) Check the fan.

4) Check the refrigerant temperature.

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.

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.

Page 45

3. SERVICE DATA INDICATION BY SWITCHES ON OUTDOOR CONTROLLER BOARD

SW3-1 SW3-2

LED

Check code

OFF OFF

Outdoor coil thermistor is abnormal

Input circuit on controller board is abnormal

Open phase

63H2 function 51C function 26C function Overheat protection

Reversed phase

Blinking

Output state

OFF OFF

OFF

Outdoor coil temperature

(bit)

8 16 32 64

128

8 16 32 64

128

256

512

1024

2048 4096 8192

16384 32768

Fan output

step

(bit)

OFF

Total time of compressor

operation(Hr)

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

Lighting

LD1

LD2

LD3 LD4

LD5 LD6 LD7

LD8

Setting dip switches 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 independent 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.

Page 46

3-1 Outdoor coil temperature

Fan output step (bit)

Fan rotational frequency (rpm)

100 150 200 250

800

600

400

200

Type

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.

Short

Open

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.

1PUH-1.6/2KA

<50HZ>

3-3 Total time of compressor operation

Compressor operation time is indicated 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 during normal operation, operation will continue.

● The latest check code is indicated.

Page 47

4. TROUBLESHOOTING ACCORDING TO CHECK CODE

Blinking

LED LD1

LD2

LD3

LD4

LD5

LD6

Diagnosis of malfunction Cause Check point

Reversed phase Phases L1, L2, and L3are con-

Open phase ● Phase L2is open.

Outdoor coil thermistor is abnormal. (Open circuit or short circuit)

High pressure switch (63H2) function

Thermal relay (51C) function ● 51C was connected incor-

Thermal switch (26C) function. ● 26C was connected incor-

nected improperly.

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

● Outdoor coil thermistor is broken.

● Thermistor was connected incorrectly.

● 62H2 was badly connected.

● 63H2 was working.

rectly.

● 51C was working.

rectly.

● 26C is working.

Check the power supply connection.

● Check the power supply.

● Check each protector.

● Measure the resistance of the thermistor.

● Check the thermistor. If normal, replace the out-

● Check 63H2 and the outdoor fan motor.

● Check if refrigerant supply is low.

● Check if air cycle is short-cycled.

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

● Check 26C.

● Check if refrigerant supply is low.

● Check if the capillary tube is clogged.

door controller board.

LD7

Over heat protection ● The thermistor is broken.

LD8

Input circuit of outdoor controller board is abnormal.

● Coil temperature is over 67°C.

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

5. WHEN OUTDOOR UNIT DOES NOT

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 (6.3A) in the outdoor controller board is blown.

● Measure the resistance of the thermistor.

● Check the outdoor fan motor.

● Check if air cycle is short-cycled.

Check points

1) Check the connecting wires.

2) Check the power supply.

3) Check connectors and transformers.

4) Check the fuse.

Page 48

6. WRONG WIRING ON SITE

OutdoorIndoor

1 2 3

OutdoorIndoor

1 2 3

OutdoorIndoor

1 2 3

OutdoorIndoor

1 2 3

OutdoorIndoor

1 2 3

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

Disconnection between 1 and 1 or 2 and 2.

COOL

HEAT

COOL

HEAT

COOL

HEAT

COOL

HEAT

COOL

HEAT

COOL

HEAT

Thermostat

Phenomenon

OFF Operation stops.

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

on remote controller display.

OFF

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

ON Normal operation.

OFF Outdoor unit stops.

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

remote controller display.

OFF Operation stops.

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

remote controller display.

OFF Outdoor unit stops.

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

remote controller display.

OFF Operation stops.

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

remote controller display.

OFF Outdoor unit stops.

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

remote controller display.

OFF Operation stops.

Operation stops, 27 minutes later, check code “P8” appears on

remote controller display.

OFF Outdoor unit stops.

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

remote controller display.

OFF Operation stops.

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

remote controller display.

OFF Operation stops.

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

remote controller display.

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

HEAT

Normal operation.

–

OFF Operation stops. 4-way valve turns ON.

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

remote controller display.

Page 49

7. OTHER TROUBLES AND CAUSES

Vanes do not work.

Unit stops after 5 to 20 seconds operation

Airflow display is OFF and VANE button does not operate.

In this case, remote controller is normal.

Power ON/OFF button is not available.

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

Protection function is working.

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

Beep sound is heard, but display is turned OFF.

Beep sound is not heard, and display remains OFF.

“CENTRALLY CONTROLLED” is displayed.

Indoor controller is damaged. Dip switch setting is wrong.

Indoor controller is damaged. Vane motor is damaged. Auto vane is wired after power is turned to ON.

Indoor/outdoor connecting wire is connected incorrectly. Indoor/outdoor connecting wire shorts. Compressor protector is damaged. Outdoor controller board is detective

Remote controller is damaged. Transmission wire is poorly connected

Vane motor is damaged.

Refer to check code on remote controller display. See page 44.

Vane motor relay is damaged.

Vane motor is damaged.

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

8. MR. SLIM/LOSSNAY INTERLOCK OPERATION

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

Symptom

LOSSNAY control switch can not work during interlock opera-

LOSSNAY control switch does not work.

LOSSNAY air speed can not be controlled in interlock operation.

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

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

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 control switch.

Cause

Page 50

9. How to check the parts PKH-GKLH, PKH-GKL

-20 -10 0 10 20 30 40 50

< Thermistor for lower temperature >

Temperature (:)

Resistance (K")

Parts name Check points

Room temperature thermistor

Pipe temperature thermistor (RT2)

(RT1)

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

Normal

4.3k'~9.6k'

Abnormal

Open or short

(Refer to the thermistor)

Fan motor (MF)

Relay connector

Red

White

Black

Protector

Vane motor (MV)

Orange

Red

Pink

Connector

Brown

Yellow

3 6 1

Measure the resistance between the terminals using a tester.

Motor terminal

Relay connector

3 5

Red-Black

White-Black

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

Brown-Yellow

Brown-Blue

Blue

Red-Orange

Red-Pink

Thermistor for lower temperature

Room temperature thermistor(RT1) Pipe temperature thermistor(RT2)

Normal

PKH-GKLH, PKH-GKL

1.6/2

141.2'

131.5'

Normal

186~214'

Abnormal

Open or short

Abnormal

Open or short

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

Rt=15exp { 3480( ) }

273+t

0: 15k' 10: 9.6k' 20: 6.3k' 25: 5.2k' 30: 4.3k' 40: 3.0k'

273

Page 51

Unit

Remote controller

Unit Unit

Unit

Remote controller

Unit Unit

Optional adapter

Remote ON/OFF switch

Remote controller

Relay box

Unit

Remote controller

Unit Unit

Unit

Remote controll display board

Remote controller

Unit Unit

Circuit breaker

Remote controller

SYSTEM CONTROL

1. VARIETY OF SYSTEM CONTROL FUNCTIONS [Only optional wired remote controller is available the following system.]

1 Group control with

a single remote controller (See page 52.)

2 Control using two

remote controllers (See page 53.)

3 Both remote

ON/OFF and individual controls (See page 53.)

w Timer adapter

(PAC-SA89TA-E) is needed.

4 Individual control

by grouping remote controllers (See page 54.)

Many units, installed at different locations, can be started and controlled with a single 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. Amaximum of 50 units can be controlled with a single remote controller. All units operate in the same mode.

Two remote controllers can be used to control either one unit or a group of units. Units can then be controlled from a distance or at close range. Units operate according to the latest command from either remote controller.

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. Dunning 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.

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.

5 Multiple remote

control display (See page 55.)

w Multiple display

adapter (PAC-SA88HA-E) is needed.

6 Auto restart func-

tion (See page 55.)

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.

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 after power failure, the unit will restart automatically. (However, when the remote controller POWER ON/OFF button is OFF, the unit will not start.)

Page 52

2. GROUP CONTROL WITH A SINGLE REMOTE CONTROLLER

To remote controller

To next unit

The last unit dose not have this wire.

Next unit electrical box

Master unit electrical box

123LN;

LN;

123

Master unit

No.1 unit No.2 unit Last unit

2-wire cable

SW2

CN40

SW2

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

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 each 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.

Figure 1

Figure 2

Figure 3

Indoor controller board ▼

Setting examples

Unit address & start delay in seconds.

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 adjust to the room temperature.

Master (No. 0) unit

ALL OFF

No. 1 unit

1 ON

SW2

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

Page 53

Figure 4

Individual operation

Remote controller

Multiple operation

SW17

Remote controllerFigure 5

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

OFF

Main remote controller Sub remote controller

Turn SW17-7 ON.

OFF

CONTROL USING TWO REMOTE CONTROLLERS : OPTIONAL REMOTE CONTROLLER

(PAR-JA240KAT-E)

Two remote controllers can be used to control either one unit or a group of units. Units operate according to the latest command from either of the two remote controllers. Before operation, be sure to set one remote controller as the “main controller” and the other as the “sub controller”, using dip switch SW17-7 of the remote controller.

3-1 How to set SW17-7 (See Figure 5.)

(1) For the main remote controller, turn SW17-7 OFF. (2) For the sub remote controller, turn SW17-7 ON.

3-2 Remote controller LCD indication

(1) The same indications always appear on both the

main and sub remote controllers, except during the timer operations.

(2) Timer operations can be set with either of the two

remote controllers. However, LCD indication appears only on the remote controller used for timer-settings.

(3) If both remote controllers are set for timer operation

with different time-settings, the timer operation with the shorter remaining-time is effective.

(4) Self-diagnostic function is available with either of the

two remote controllers. If one of the remote controllers is used for the self-diagnostic function, the other remote controller displays the check mode. If the self-diagnostic function is reset by either of the two remote controllers, both remote controllers are reset.

4. 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

4-1 System

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

Page 54

NOTE1 : Install the relay box where you can be serviced it easily.

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

Remote controller cable (2-core)

Remote controller

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.

4-2 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.

4-3 Switch function of remote ON-OFF switch

SW2

(Switches between remote ON-OFF and individual control)

SW1 (Switches between remote ON and OFF.)

(Start)

OFF

(Stop)

(Remote ON-OFF control)

All units start together.

Individual control is not available. All units stop together.

Individual control is not available.

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

(Individual control)

w1 After all units start together, if SW2 is turned OFF, each unit can be individually stopped by each remote controller. w2 After all units stop together, if SW2 is turned OFF, each unit can be individually started by each remote controller.

5. 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 extendible 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.

OFF

Page 55

6. MULTIPLE REMOTE CONTROL DISPLAY

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

CN51

Indoor controller board

NC51

Power supply

Remote controller cable

Relay box (Field supply)

Remote controller

3wires 3wires 3wires

2wires

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

Muitiple remote control ON-OFF display (Field supply)

(Operation check)

Power supply

RL-1 GL-1

Multiple Remote Control Display

Multiple remote controller adapter

connect to the connector CN51

Relay box

X1-1

X2-1

RL-2 GL-2

RL-3

No.1 unit

GL-3

X1-1

X2-1

X1-2

X1-3

X2-3

X2-2

No.2 unit

No.3 unit

X1-2

X2-2

X1-3

X2-3

Remote controller

A B

Brown

Red

Orange

Remote controller

A B

Brown

Red

Orange

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

6-1 How to wire

(1) Connect the multiple 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.

Indoor controller board

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

consumption below 0.9W.

Lamps:Matching to power supply voltage.

7. AUTO RESTART FUNCTION

By setting the dip switch SW1-8 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.

•This function is mainly to emergency performance when the power supply stops temporarily. Therefore, since the protection function (for example, clank case heater and prevention from restarting in 3 minutes, etc.) of the device is not operated, this function should not be used mostly.

8. TIMER OPERATION OR THE OPERATION BY AN EXTERNAL SIGNAL

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

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

Page 56

DISASSEMBLY PROCEDURE

PKH-1.6GKL / PKH-2GKL PKH-1.6GKLH / PKH-2GKLH

OPERATION PROCEDURE

1. REMOVE THE LOWER SIDE OF THE INDOOR UNIT FROM THE INSTALLATION PLATE.

(1) Remove the left / right corner box of the indoor unit. (2) Hold and pull down the lower and both ends of the indoor

unit, and remove the ▼ section from the square hole. (Refer to the figure 2.1) Or remove the front panel and push the ▼ section down by using hexagonal wrench, etc. from the front side. (Refer to the figure 2.2).

(3) Unhook the top of the indoor unit from the back plate catch.

(Figure 2.2)

PHOTOS & ILLUSTRATION

(Figure 1)

(Figure 2.1)

Hook

Square hole

2. REMOVING THE FRONT PANEL.

(1) Open the front grille. (2) Remove the terminal block cover with a screw. (3) Remove the screw 3 caps then remove the set 3 screws. (4) After removing the lower side of the front panel a little,

remove it as pulling toward upper.

3. REMOVING THE INDOOR CONTROLLER BOARD.

(1) Remove the terminal block cover. (2) Remove the front panel. (see the photo 1) (3) Remove the electrical box(2 screws). (4) Remove the electrical box cover(1 screw). (5) Disconnect the connector on the controller board and

remove the controller board by Pulling up the hook of the controller case. w To smooth works, hang the side hooks of the electrical

parts box on the hook of the motor cover. (see the photo 3)

Down

(Figure 3)

(Photo 1)

Front panel

(Photo 2)

Motor cover

Electrical box hook w

Square hole

Terminal block cover

Front grille

Set screws

Set screw

Electrical box

Set screw

(Photo 3)

Hook

Control board

Controller case

Electrical box

Page 57

OPERATION PROCEDURE

PHOTOS & ILLUSTRATION

4. REMOVING THE POWER BOARD

(1) Remove the front panel.(see the photo 1) (2) Remove the electrical box(2screws).(see the photo 2) (3) Disconnect the whole connector in the control board. (4) After lifting the controller case with pressing it’s convex

section, remove the controller case and the control board

simultaneously.(see the photo 3) (5) Disconnect the connector in the power board. (6) Remove the power board.

5. REMOVING THE VANE MOTOR

(1) Disconnect the connector CN6V on the indoor controller

board.

(2) Remove the 2screws of the vane motor, disconnect the

lead wire and remove the vane motor from the shaft.

6. REMOVING THE THERMISTOR

(1) Removing the room temperature thermistor RT1.

1Disconnect the connector CN20<red> on the indoor

controller board.

2Remove the room temperature thermistor from the holder. (2) Removing the pipe temperature thermistor RT2.

1Disconnect the connector CN21<white> on the controller

board.

2Remove the pipe temperature thermistor with set to the pipe.

(Photo 4)

(Photo 5)

Nozzle assemble

Van motor

(Photo 6)

Pipe temperature thermistor

Room temperature thermistor

Power board

Electrical box

Set screws

Lead wire

7. REMOVING THE NOZZLE ASSEMBLE

(1) Disconnect the connector CN6V on the controller board. (2) Disconnect the lead wire of the vane motor. (3) Remove the corner cover. (4) Pull the drain hose out from the nozzle assemble. (5) Unhook the hook of the lower nozzle assemble and

pull the nozzle assemble toward you, then remove the nozzle assemble by sliding it down.

8. REMOVING THE ELECTRICAL BOX

(1) Remove the terminal block cover. (2) Remove the front panel.(see the photo 1) (3) Disconnect the vane motor connector. (4) Disconnect the fan motor connector from the fan motor. (5) Remove the pipe temperature thermistor.(see the photo 6) (6) Remove the electrical parts box (2screws).

(Photo 7)

Nozzle assemble

(Photo 8)

Pipe temperature thermistor

Hook

Electrical box

Drain hose

Corner cover

Vane motor connector

Electrical box

Fan motor connector

Page 58

OPERATION PROCEDURE PHOTOS & ILLUSTRATION

9. REMOVING THE FAN MOTOR.

(1) Remove the terminal block cover. (2) Remove the front panel.(see the photo 1) (3) Remove the electrical box.(see the photo 8) (4) Remove the nozzle assemble.(see the photo 7) (5) Remove the fan motor leg fixing 3 screws. (6) Unscrew the set screws using by alankey and remove it by

sliding the fan motor to right.

(7) Remove the 4 screws and remove the motor cover from the

fan motor leg.

10. REMOVING THE LINE FLOW FAN

(1) Remove the terminal block cover. (2) Remove the front panel.(see the photo 1) (3) Remove the electrical box.(see the photo 8) (4) Remove the nozzle assembly.(see the photo 7) (5) Remove the fan motor.(see the photo 9) (6) Remove the pipe fixture with 2 screws.(see the photo12) (7) Remove the left / right screws of the heat exchanger and

pull the left-hand side up.

(8) Remove the 2 screws by sliding it toward you remove the

fixture(fixing bearing). w The fan motor is removable first, when the fan

removing is hard.

w When resetting the fan to the fan motor.

Locate and fix the shaft after installing the fan.

(Photo 9)

Set

screw

(Photo 10)

Motor cover

Fan motor

(Photo11)

Heat exchanger

Set screws

Fixture(fixing bearing)

Motor cover

Fan motor

screws

motor leg

11. REMOVING THE HEAT EXCHANGER

(1) Remove the terminal block cover. (2) Remove the front panel.(see the photo 1) (3) Remove the electrical box.(see the photo 8) (4) Remove the corner box. (5) Remove the nozzle assemble.(see the photo 7) (6) Remove the 2 screws and the pipe fixture. (7) Remove the 2 screws and heat exchanger.

12. REMOVING ELECTRICAL HEATER (PKH-1.6/2GKLH only)

(1) Remove the terminal block cover. (2) Disconnect the connector <yellow> for the wireless remote

controller. (3) Remove the front panel.(see the photo 1) (4) Remove the electrical box.(see the photo 8) (5) Remove the nozzle assembly.(see the photo 7) (6) Remove the heat exchanger.(see the photo 12) (7) Remove the 2 screws and electrical heater.

(Photo 12)

Set screw

(Photo 13)

Pipe fixture

Set screws

Electrical heater

Heat exchanger

Set screws

Page 59

OPERATION PROCEDURE

PHOTOS & ILLUSTRATION

13. REMOVING the SIGNAL RECEIVING P.C. BOARD

(1) Remove the terminal block cover. (2) Disconnect the connector <yellow> for the wireless remote

controller. (3) Remove the front panel.(see the photo 1) (4) Remove the 2 screws and signal receiving p.c. board cover. (5) Remove the signal receiving p.c. board.

(Photo 14)

Set screws

(Photo 15)

Front panel

Signal receiving p.c. board cover

Front panel

Signal receiving p.c. board

Page 60

12 PARTS LIST

ELECTRICAL PARTS PKH-1.6GKL / PKH-1.6GKLH PKH-2GKL / PKH-2GKLH

No.

Parts No. Parts Name

T7W A01 762 R01 09Y 114

R01 07Y 114

R01 07Y 105

R01 07Y 106

R01 005 103

R01 07Y 102

R01 07Y 130

T7W E13 530

T7W E06 202

R01 09Y 038

T7W E13 223

R01 07Y 527

T7W E12 310

T7W 520 239

R01 07Y 524

T7W 521 716

FAN MOTOR LINE FLOW FAN LINE FLOW FAN RUBBER MOUNT BEARING SUPPORT SLEEVE BEARING BEARING MOUNT MOTOR SUPPORT NOZZLE PIPE TEMPERATURE THERMISTOR GUIDE VANE VANE MOTOR DRAIN HOSE INDOOR CONTROLLER BOARD FUSE DRAIN PLUG TERMINAL BLOCK

Specifications

PM4V30-K

250V 6.3A

3P(L, N, ;)

PKH-

1.6

GKL2GKL

1.6

GKLH2GKLH

Remarks

(Drawing No.)

To be continued on the next page.

Wiring

Diagram

Symbo

RT2

I.B

F1, F2

TB2

Recom-

mended

Q'ty

Unit

Price

Amount

Page 61

From the preceding page.

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

No.

Parts No. Parts Name

R01 588 255

T7W E05 202 T7W E68 480

R01 16Y 480

T7W E02 313

T7W 517 716

R01 71G 215

R01 07Y 135

R01 07Y 038

R01 07Y 059

T7W A00 675

T7W E13 300

R01 20J 303

R01 64K 700

R01 208 706

R01 986 706

R01 50J 317 33 34 35 36 37 38

R01 KV6 246

— — — — —

CAPACITOR ROOM TEMPERATURE THERMISTOR HEAT EXCHANGER HEAT EXCHANGER POWER BOARD TERMINAL BLOCK HEATER CONTACTOR MOTOR COVER GUIDE VANE ARM FAN GUARD HEATER ELEMENT INSULATOR HEATER THERMAL SWITCH THERMAL FUSE THERMAL FUSE WIRERLESS ADAPTER CONTROLLER BOARD CONTROLLER COVER CONTROLLER CASE TERMINAL COVER ELECTRICAL PARTS COVER SENSOR HOLDER TERMINAL BLOCK

Specifications

2.0= ✕440V

3P(1, 2, 3)

800W

60-C OFF 40-C ON 84-C 10A 104-C 10A

PKH-

1.6

GKL2GKL

1.6

GKLH2GKLH

1 1

Remarks

(Drawing No.)

(BG02V194H05) (BG25B573H05) (BG02V195H10) (BG00V196G20) (RG25C546H06)

Wiring

Diagram

Symbo

RT1

P.B TB4 88H

26H FS2 FS1 W.B

TB5

Recom-

mended

Q'ty

Unit

Price

Amount

Page 62

1 2 3 4 5

7 8

9 10 11 12 13 14 15 16 17 18

FRONT PANEL AIR FILTER SCREW CAP CORNER COVER CORNER COVER BOX ASSEMBLY BOX ASSEMBLY BACK PLATE UNDER COVER FRONT GRILLE VANE SLEEVE AUTO VANE WIRELESS REMOTE CONTROLLER WIRELESS REMOTE CONTROLLER DOOR BATTERY COVER WIRELESS REMOTE CONTROLLER HOLDER RECEIVING UNIT REMOTE CONTROLLER REMOTE CONTROLLER COVER

1 2 3 1 1 1

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

1 2 3 1 1

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

No.

Parts No.

Parts Name

Specifications

1.6/2

GKLH

PKH-

1.6/2 GKL

PKA-

Remarks

(Drawing No.)

Wiring

Diagram

Symbol

Recommended

Q'ty

Unit

Amount

Price

R01 89Y 651 R01 A16 500 R01 07Y 096 R01 09Y 658 R01 07Y 658 R01 09Y 635 R01 07Y 635 R01 07Y 808 R01 07Y 623

R01 07Y 691 R01 07Y 092 R01 07Y 002 T7W E04 714 T7W E01 049 R01 07Y 050 R01 07Y 075 R01 24K 658 T7W E04 713 T7W E03 049

RU R.B

STRUCTURAL PARTS PKH-1.6GKL / PKH-1.6GKLH PKH-2GKL / PKH-2GKLH

13 14

Page 63

13 OPTIONAL PARTS

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

PAC-05FFS-E PAC-07FFS-E PAC-10FFS-E PAC-15FFS-E

5C 7C 15C10C

Liquid:{9.52 Gas:{15.88

Indoor unit:Flared Outdoor unit:Flared

Service Ref.

Part No

Model Name

PKH-1.6/2GKL

PKH-1.6/2GKLH

PAC-SC32PTA(with set back function)

Program timer

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 Set back function

Part No.

Part name

Service Ref.

Program timer

PKH-1.6/2GKL PKH-1.6/2GKLH

PAC-SC32PTA 5-4/32 ✕ 4-23/32 ✕ 23/32(130✕120✕18A) Wall mount Quartz ±50seconds/month at25: Liquid crystal display Liquid crystal display Liquid crystal display 24 hours 30minutes 48/day 5V DC ±5%(Supplyed by Remote Controller) Provided

28˚C

˚C

8:00

Normal

operation

23:00

Setback

operation

8:00

Normal

operation

1. REFRIGERANT PIPES

Service Ref. : PKH-1.6GKL / PKH-2GKL

: PKH-1.6GKLH / PKH-2GKLH

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 30m,an additional charge of refrigerant is needed.

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

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

2. TIMER

When using a program timer, PAC-SC32PTA, a program timer adapter (PAC-825AD) is also needed.

2-1 Program timer specifications

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-SC32PTA)

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

(3) Weekly timer function

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

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.

Page 64

2-3. How to connect program timer

ORN 1

2 3

BRN RED

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

SET/MONITOR

SET

SMTWTF 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

FILTER CHECK MODE TEST RUN

2-wire cable

5-wire cable

To indoor unit

Connector CN1 Connector CN1

(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

NOTE:While the program timer is connected to the remote controller, the 24hour

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

2-4 Names and functions

<PAC-SC32PTA>

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 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

CURRENT TIME DISPLAY

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

CROCK ADJUSTMENT SW

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.

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

SET BACK SETTING SW

Used for set back setting.

ON/SET BACK/OFF SW

Used to specify the time setting pattern.

DAILY TIMER SW

Used for timer setting in 30 minutes unit.

WEEKLY TIMER SW

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

“MONITOR” :Indicates the current timer set-

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

“SET”: Set to “SET” mode for clock adjust-

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

3. TIMER ADAPTER

This adapter is needed for system control and for operation via external contacts. Adapter connection is described on page 53.

Part No. PAC-SA89TA-E

Used for adjustment of the current time.

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 becomes 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 becomes 0 indication reverses in 10 minutes unit.

Used for setting timer in day of week unit.

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

…

enabling to set the week day.

Page 65

4. MULTIPLE REMOTE CONTROLLER ADAPTER

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

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

56.3 11

23.5

This adapter is needed for remote indication (operation/check). Adapter connection is described on page 55.

Part No. PAC-SA88HA-E

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 55.

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.

POWER ON/OFF switch Operation ON/OFF switch.

▲BACK ▼AHEAD buttons These buttons are used to designate

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. Controll is by the centralized remote controller only.

Initial setting is "DUAL".

LCD Matrix Display This display indicates the operational sta-

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

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

the attached unit(s). (They designate the unit that is 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 turns ON/OFF operational instructions from the program timer automatically. “BYPASS” ON/OFF Operation is by the centralized remote controller only. Initial setting is “BYPASS”.

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

Page 66

5-3 Connection method

LNE

(Y)

(W) (R) (O)

(BR)

POWER SUPPLY

N E

Fuse(5A)

Tie-wrap

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

Tie-wrap

TRANSFORMER

Transmission

TERMINAL-BLOCK FOR TRANSMISSION

TERMINAL-BLOCK OF POWER SUPPLY

200

220

230

240

BACK

ACTIVE BYPASS

POWER ON/OFF

DUAL

CENTRAL

AHEAD

ENGAGED

GROUP

ACTIVE BYPASS

GROUP SELECTION

PROGRAM TIMER

CONTROLLER OPERATION

DUAL CENTRAL

12345678910

10 9 8 7 6 5 4 3 2 1

To adaptor's terminal-block

Centralized remote controller

Non-polar, two-wire cable

To adaptor's terminal-block

Power supply board box

(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 AC (220, 230, 240V) to 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 Ø1.6 (AWG 14) or above two-wire cable for the transmission line. CAUTION : Never connect the power supply cord to the transmission terminal-block.

AN.

(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

Centralized remote controller

Power supply board

3. Be sure to set the maximum address number with the dip switch SW17 on the 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

ENGAGED

GROUP

12345678910

GROUP

ACTIVE BYPASS

DUAL CENTRAL

SELECTION

PROGRAM TIMER

CONTROLLER OPERATION

Page 67

6. PROGRAM TIMER ADAPTER

Length : 2m (6' 7")

LNE

Dip switch

Fig-1 Fig-2

CN22

TRANS

(Y)

SW1

Terminal block for transmission to program timer or centralized remote controller

(B)

(W)

200

POWER

SUPPLY N E

POWER SUPPLY CORD

Fuse(5A)

Tie-wrap

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

Tie-wrap

Transmission cord

TRANSFORMER

TERMINAL-BLOCK FOR POWER SUPPLY

TERMINAL-BLOCK FOR TRANSMISSION

SW1

CN22

CN1 CN21 CN51 CN30CN42 CN50 CN40

(AG)

TRANS

220

240

This adapter is needed when a program timer(PAC-SC32PTA)or a centralized remote controller(PAC-805RC)is used.

Part No. PAC-825AD

6-1 Parts included

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

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

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

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

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.

(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 AC(220, 230, 240V) to LN. 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 (when a centralized remote controller is being used). CAUTION : Never connect the power supply cord to the transmission terminal-block

(2) When the centralized remote controller is used, set the address number with the dip switch SW1 of the pro-

gram timer adapter.

Page 68

7. Wired Remote Controller (with terminal block)

Part No. PAR-JA240KAT-E

8. Program Timer

Part No. PAC-SC32PTA

HEAD OFFICE MITSUBISHI DENKI BLDG.MARUNOUCHI TOKYO100-8310 TELEX J24532 CABLE MELCO TOKYO

New publication, effective Aug. 2000 Specifications subject to change without notice

Mitsubishi PKH-1.6GKL, PKH-1.6GKLH, PKH-2GKL, PKH-2GKLH Service Manual

Specifications and Main Features

Frequently Asked Questions

User Manual