Mitsubishi PK-1.6GKL, PK-2GKL Service Manual

SPLIT-TYPE, AIR CONDITIONERS

ON/OFF

TECHNICAL & SERVICE MANUAL

2000

No.OC230

Series PK

Indoor unit [Model names]

PK-1.6GKL

PK-2GKL

Wall Mounted

[Service Ref.]

PK-1.6GKL PK-2GKL

Indoor unit

This manual does not cover the following outdoor units. When servicing them, please refer to the service manual No.OC127 Revised Edition-A and this manual in a set. [Service Ref.]

PU-1.6VLJA2 PU-2VJA2

CONTENTS

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

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

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

4. OUTLINES AND DIMENSIONS·························10

5. WIRING DIAGRAM ············································11

6.

REFRIGERANT SYSTEM DIAGRAM

7.

OPERATION FLOW-CHART

8.

MICROPROCESSOR CONTROL

9.

TROUBLESHOOTING

10. SYSTEM CONTROL ··········································35

11. DISASSEMBLY PROCEDURE ···························40

12. PARTS LIST ·······················································44

13. OPTIONAL PARTS·············································46

··································13

···········································29

······················12

···························16

Remote controller

1 PART NAMES AND FUNCTIONS

● Indoor Unit

Air intake

Guide vane

Filter

Air outlet

Air intake grille

Auto vane

2

●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 , 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

3

2

Guaranteed operating range

Upper limit Lower limit

Indoor D.B. 35˚C, W.B. 22.5˚C D.B. 21˚C, W.B. 15.5˚C

Outdoor

D.B. 52˚C (46˚C)

D.B. 21˚C

Cooling

Item

Service Ref.

PK-1.6GKL PK-2GKL

PK-2GKL

PU-2VJA

2

Single, 50Hz, 220/240V

2.44 / 2.48

11.3 / 10.8(98/96) 48 / 52

Munsell 5Y 7/1

Capillary tube

Hermetic

Inner thermostat, HP/LP switch

Line start

Plate fin coil

Propeller (direct) o 1

0.065

45 (1588)

—

870 (34-1/4) 295 (11-5/8) 650 (25-5/8)

60 (132)

9.52 (3/8)

15.88 (5/8) Flared Flared

w3 Max. 20m w3 Max. 30m

49

32 / 38

R-22 1.78 (3.9)

NHJ41VMD

2.0

Single, 50Hz, 220/240V

0.07

0.33(96/88)

0.4

Munsell 0.70Y 8.59/0.97

Plate fin coil

Line flow (direct) o 1

0.030

9-12 (318-424)

0 (direct blow)

—

Wireless remote controller & Built-in

36 - 43

20 (13/16)

990 (39)

235 (9-1/4)

340 (13-3/8)

16 (35)

27/19.0°C, 35/24°C

Cooling (JIS B8616,GB4706.32-96)

19,100

5,600

2.51/2.55

27/19.0°C, 35/24°C

Cooling (JIS B8616,GB4706.32-96)

13,300

3,900

1.49/1.59

PK-1.6GKL

Single, 50Hz, 220/240V

0.07

0.33(96/88)

0.4

Munsell 0.70Y 8.59/0.97

Plate fin coil

Line flow (direct) o 1

0.030

9-12 (318-424)

0 (direct blow)

—

Wireless remote controller & Built-in

36 - 43

20 (13/16)

990 (39)

235 (9-1/4)

340 (13-3/8)

16 (35)

PU-1.6VLJA

2

Single, 50Hz, 220/240V

1.42 / 1.52

6.7 / 6.9 (97/92) 30 /33

Munsell 5Y 7/1

Capillary tube

Hermetic

RH247VFC

1.2

Line start

Plate fin coil

Propeller (direct ) o 1

0.065

45 (1588)

—

49 870 (34-1/4) 295 (11-5/8) 650 (25-5/8)

45 (99)

—

R-22 1.3 (2.9)

9.52 (3/8)

15.88 (5/8) Flared Flared

w3 Max. 15m w3 Max. 20m

Condition Capacity w1 Total input w1

Service Ref. Power supply(phase, cycle,voltage)

Input

Running current (Power factor)

Starting current External finish Heat exchanger

Fan(drive) o No.

Fan motor output

Airflow (Low-High)

External static pressure Booster heater Operation control & Thermostat Noise level (Low-High) w2 Cond. drain conn. I.D.

Dimensions

Weight Service Ref. Power supply (phase, cycle, voltage)

Input

Running current /Power factor

Starting current External finish Refrigerant control Compressor

Model

Motor output

Starter type

Protection devices Heat exchanger

Fan(drive) o No.

Fan motor output

Airflow Defrost method Noise level w2

Dimensions

Weight Crankcase heater Refrigerant Charge

Pipe size O.D.

Connection method Between the indoor &

outdoor units

Btu/h

W

kW

A (%)

A

kW

m

3

/min (CFM)

Pa (mmAq)

kW

dB mm (in.) mm (in.) mm (in.) mm (in.)

kg (lbs)

kW

A (%)

A

kW

m

3

/min(CFM)

dB mm (in.) mm (in.) mm (in.)

kg (lbs)

W

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

Indoor, Outdoor D.B. / W.B.°C

Liquid

Gas

W

D H

W

D H

REFRIGERANT PIPING

OUTDOOR UNIT

Indoor side Outdoor side Height difference Piping length

INDOOR UNIT

Fan

( ) : PU-1.6VLJA2

SPECIFICATIONS

1. STANDARD SPECIFICATION

w1 Refrigerant piping length (one way) : 5m (16ft) w2 Noise level is measured in an unacoustic room based on JIS Z8731 conditions. w3 Up to 20m it is unnecessary to charge additional refrigerant.

4

2. POWER SUPPLY & MODEL NAMES

Power supply Service Ref.(Indoor unit)

Service Ref.(Outdoor unit)

50Hz

1ph. 3ph.

PK-1.6GKL

PU-1.6VLJA

2

—

PK-2GKL

PU-2VJA

2

—

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

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

Power supply (1 Phase)

Service Ref.

Current Input Starting courrent Outdoor unit

A

KW

A

KW

A

PK-1.6GKL

0.33

0.07

0.4

PU-1.6

PK-2GKL

0.33

0.07

0.4

PU-2

PK-1.6GKL

0.33

0.07

0.4

PU-1.6

PK-2GKL

0.33

0.07

0.4

PU-2

V : 240V 50Hz

Power supply (1 Phase)

Service Ref.

Current Input Starting courrent Outdoor unit

PK-1.6GKL

0.33

0.07

0.4

PU-1.6

PK-2GKL

0.33

0.07

0.4

PU-2

Notes : 1. Power supply key V(L) …1ph, 220, 230 240V, 50Hz

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

3. ELECTRICAL SPECIFICATION

(1) Rating conditions

Series PK Indoor Unit (Single Phase)

JIS B8616,GB4706.32-96

Indoor : D.B. 27°C (80°F), W.B. 19°C(66°F) Outdoor : D.B. 35°C (95°F)

5

3 DATA

Service Ref. PK-2GKLPK-1.6GKL PK-2GKLPK-1.6GKL

Temperature T.C. Outdoor D.B.

21˚C (69.8˚F)

Indoor W.B.

16˚C 18˚C 19˚C

19.4˚C 20˚C 22˚C

(60.8˚F) (64.4˚F) (66.2˚F)

(67˚F) (68˚F)

(71.6˚F)

3.9

4.2

4.3

4.4

4.7

C.F.

(T.I.)

0.81

0.82

0.83

0.84

0.86

0.81

0.82

0.83

0.84

0.86

0.84

0.85

0.86

0.87

0.89

0.90

0.92

0.93

0.94

0.96

0.93

0.95

0.96

0.97

0.99

0.96

0.99

1.00

1.01

1.04

1.03

1.06

1.07

1.08

1.11

25˚C (77˚F)

16˚C 18˚C 19˚C

19.4˚C 20˚C 22˚C

(60.8˚F) (64.4˚F) (66.2˚F)

(67˚F) (68˚F)

(71.6˚F)

3.8

4.1

4.2

4.3

4.6

0.84

0.85

0.86

0.87

0.89

30˚C (86˚F)

16˚C 18˚C 19˚C

19.4˚C 20˚C 22˚C

(60.8˚F) (64.4˚F) (66.2˚F)

(67˚F) (68˚F)

(71.6˚F)

3.7

3.9

4.1

4.2

4.5

0.90

0.92

0.93

0.94

0.96

32.2˚C (90˚F)

16˚C 18˚C 19˚C

19.4˚C 20˚C 22˚C

(60.8˚F) (64.4˚F) (66.2˚F)

(67˚F) (68˚F)

(71.6˚F)

3.6

3.9

4.0

4.1

4.4

0.93

0.95

0.96

0.97

0.99

35˚C (95˚F)

16˚C 18˚C 19˚C

19.4˚C 20˚C 22˚C

(60.8˚F) (64.4˚F) (66.2˚F)

(67˚F) (68˚F)

(71.6˚F)

3.5

3.8

3.9

4.0

4.3

0.96

0.99

1.00

1.01

1.04

40˚C (104˚F)

16˚C 18˚C 19˚C

19.4˚C 20˚C 22˚C

(60.8˚F) (64.4˚F) (66.2˚F)

(67˚F) (68˚F)

(71.6˚F)

3.4

3.6

3.7

3.8

3.9

4.1

1.03

1.06

1.07

1.08

1.11

T.C.

5.6

6.0

6.2

6.4

6.7

C.F.

(T.I.)

5.5

5.9

6.0

6.1

6.2

6.6

5.3

5.6

5.8

5.9

6.0

6.4

5.2

5.5

5.7

5.8

5.9

6.3

5.1

5.4

5.6

5.7

5.8

6.2

4.9

5.2

5.4

5.5

5.9

Service Ref.

Temperature

T.C.

Outdoor D.B.

Indoor W.B.

C.F.

(T.I.)

40.6˚C (105˚F)

16˚C 18˚C 19˚C

19.4˚C 20˚C 22˚C

(60.8˚F) (64.4˚F) (66.2˚F)

(67˚F) (68˚F)

(71.6˚F)

3.4

3.6

3.7

3.8

4.1

1.04

1.06

1.08

1.09

1.12

1.04

1.06

1.08

1.09

1.12

1.10

1.12

1.14

1.15

1.16

1.20

1.11

1.14

1.15

1.16

1.17

1.21

1.16

1.19

1.21

1.22

1.23

1.28

1.19

1.22

1.24

1.25

1.26

1.31

45˚C (113˚F)

16˚C 18˚C 19˚C

19.4˚C 20˚C 22˚C

(60.8˚F) (64.4˚F) (66.2˚F)

(67˚F) (68˚F)

(71.6˚F)

3.2

3.4

3.6

3.7

3.9

1.10

1.12

1.14

1.15

1.16

1.20

46˚C (115˚F)

16˚C 18˚C 19˚C

19.4˚C 20˚C 22˚C

(60.8˚F) (64.4˚F) (66.2˚F)

(67˚F) (68˚F)

(71.6˚F)

3.2

3.4

3.5

3.6

3.9

1.11

1.14

1.15

1.16

1.17

1.21

50˚F (122˚F)

16˚C 18˚C 19˚C

19.4˚C 20˚C 22˚C

(60.8˚F) (64.4˚F) (66.2˚F)

(67˚F) (68˚F)

(71.6˚F)

52˚C (125.5˚F)

16˚C 18˚C 19˚C

19.4˚C 20˚C 22˚C

(60.8˚F) (64.4˚F) (66.2˚F)

(67˚F) (68˚F)

(71.6˚F)

T.C.

C.F.

(T.I.)

4.8

5.2

5.3

5.4

5.5

5.9

4.6

4.9

5.1

5.2

5.3

5.7

4.6

4.9

5.1

5.2

5.6

4.4

4.7

4.9

5.0

5.4

4.3

4.6

4.7

4.8

4.9

5.3

Evaporator airflow (CMM)

12

0.10

0.80

0.12

0.69

Bypass factors

S.H.F. at rating conditions

12

Service Ref.

Refrigerant piping length (one way)

PK-1.6GKL PK-2GKL

40m (131ft)

— —

35m (115ft)

— —

30m (98ft)

—

0.944

25m (82ft)

—

0.954

20m (66ft)

0.982

0.964

15m (49ft)

0.987

0.975

10m (33ft)

0.992

0.985

5m (16ft)

1.0

1. PERFORMANCE DATA

Cooling capacity 50Hz

PK-1.6GKL, PK-2GKL

Notes: 1. T.C. : Total capacity (kW) …(kcal/h)=(kW)x860, (Btu/h)=4x(kW)x860

COOLING CAPACITY correction factors

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

2. (°F)=32+9/5(°C)

3. Guaranteed operating range(cooling)

Lower limit … Indoor : D.B. 21°C(70°F) , W.B. 15.5°C(60°F)

Upper limit … Indoor : D.B. 35°C(95°F) , W.B. 22.5°C(72.5°F)

Outdoor : D.B. 21°C(70°F)

Outdoor : D.B. 46°C(115°F) W Outdoor : D.B. 52°C(125.5°F)…VJ,YJ

50Hz

6

2. ELECTRICAL DATA

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

Capacity (W) Total Input (kW)

IndoorOutdoor

Service Ref.

Indoor unit

Outdoor unit

3,900

1.49

0.07

0.33

0.40

1.42

6.7 30

5,600

2.51

0.07

0.33

0.40

2.44

11.3 48

PK-1.6GKL

PU-1.6VLJA

2

PK-2GKL

PU-2VJA

2

3,900

1.54

0.07

0.33

0.40

1.47

6.7 32

5,600

2.53

0.07

0.33

0.40

2.45

11.0 50

PK-1.6GKL

PU-1.6VLJA

2

PK-2GKL

PU-2VJA

2

3,900

1.59

0.07

0.33

0.40

1.52

6.9 33

5,600

2.55

0.07

0.33

0.40

2.48

10.8 52

PK-1.6GKL

PU-1.6VLJA

2

PK-2GKL

PU-2VJA

2

Air flow m3/

min

Air speed m/

sec

Coverage range m (ft)

PK-1.6GKL PK-2GKL

12

5.3

10(32.8)

12

5.3

10(32.8)

2-1 Rating conditions (JISB 8616,GB4706.32-96)

Indoor : D.B. 27°C, W.B. 19°C Outdoor : D.B. 35°C, W.B. 24°C Indoor unit …220V / 230V / 240V 50Hz 1phase Outdoor unit…220V / 230V / 240V 50Hz 1phase

3. OUTLET AIR SPEED AND COVERAGE RANGE

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.

7

4. STANDARD OPERATION DATA

Service Ref.

Mode Capacity W Input

kW

Indoor unit Service Ref.

Phase, Hz Volts Amperes

Outdoor unit Service Ref.

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

MPa

(

kg/cm

MPa

(

kg/cm

˚C ˚C

PK-1.6GKL

Cooling

3,900

1.49

PK-1.6GKL

1, 50 V A

220

0.33

PU-1.6VLJA

2

1, 50 V A

2

)

2

)

220

6.7

2.0

(20.6)

0.52

(5.3)

70 52

PK-2GKL

Cooling

5,600

2.51

PK-2GKL

1, 50

220

0.33

PU-2VJA

1, 50

220

11.3

2.0

(20.4)

0.44 (4.5)

72 52

2

Suction temperature Ref. pipe length

Intake air temperature

Discharge air

Indoor side Refrigerant circuit Electrical circuit Total

temperature

Intake air temperature

side

Outdoor

˚C

m

˚CD.B. ˚CW.B. ˚CD.B. ˚CD.B. ˚CW.B.

SHF

BF

7

5 27 19

14.2 35 24

0.80

0.10

3

5 27 19

11.6 35 24

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)

8

5. NOISE CRITERION CURVES

UNIT

WALL

1m

MICROPHONE

Ambient temperature 27:

Test conditions are based on JIS Z8731

PK-1.6GKL PK-2GKL

90

80

70

60

50

40

30

OCTAVE BAND SOUND PRESSURE LEVEL, dB re 0.002 MICRO BAR

20

10

APPROXIMATE THRESHOLD OF REARING FOR CONTINUOUS NOISE

63 125 250 500 1000 2000 4000 8000

BAND CENTER FREQUENCIES, Hz

NOTCH

Hi

Lo

SPL(dB)36LINE

43

NC-70

NC-60

NC-50

NC-40

NC-30

NC-20

9

4

BYOFF

ON STAND

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

21

Right side

Less than 15

70

245

60

235

Auto vane

Front view

Air intake

Air intake 198

53

340

715 225

340 80 280 233

990

21

Left side

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

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

60

70

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

0

322 w2

0 35

55 80

130 190

230 272 310

0

3595150

205

260

320

345

495

20

75

135

190

245

300

360

405

495

32

0

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

[90~[100[90

Through hole

Sleeve 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 pipe

Liquid pipe

3/8F1.6 . 2

Model

(Flexible hose total length800)

(Right side piping

installation)

(Left side piping

installation)

Drain pipe (VP-20)

Front view(to open the grille)

700

449

86

581 54

31 280

35

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

12-Louvers(manual)

Air outlet

Lower side

80

50

395400

190

60

70 35

79

160 40

235

705

power supply

153

OUTLINES AND DIMENSIONS

1.INDOOR UNIT PK-1.6GKL PK-2GKL

Unit : mm

10

5

SYMBOL P.B I.B

CN1 CN2 SW17 SW18

RU BZ LED1 SW2

C MF MV TB2~TB6 RT1

RT2

R.B

W.B

CN2L CN51 FC SW1 SW2 SW3 SW5 SW6 SW7 SW8 SW9

INDOOR POWER BOARD INDOOR CONTROLLER BOARD CONNECTOR (LOSSNAY) CONNECTOR (CENTRALLY CONTROL) FAN PHASE CONTROL SWITCH (FUNCTION SELECTOR) SWITCH (ADDRESS SELECTOR) SWITCH (EMERGENCY OPERATION) SWITCH (MODEL SELECTOR) SWITCH (TWIN / TRIPLE SELECTOR) SWITCH (MODEL SELECTOR) SWITCH (OPTION) SWITCH (MODEL SELECTOR)

RELAY (FAN MOTOR) FUSE (6.3V / 250V) VARISTOR LED (DC 12V POWER) LED (DC 5V POWER) CAPACITOR (FAN MOTOR) FAN MOTOR VANE MOTOR TERMINAL BLOCK ROOM TEMPERATURE THERMISTOR (0: / 15k" , 25: / 5.4k" / DETECT) PIPE TEMPERATURE THERMISTOR / LIQUID (0: / 15k" , 25: / 5.4k" / DETECT)

REMOTE CONTROLLER BOARD (OPTION) CONNECTOR (PROGRAM TIMER) CONNECTOR (REMOTE SWITCH) SWITCH (ADDRESS SELECTOR) SWITCH (FUNCTION SELECTOR) WIRELESS REMOTE CONTROLLER BOARD RECEIVING UNIT BUZZER LED (RUN INDICATOR) SWITCH (COOLING ON / OFF)

NAME SYMBOL

I.B

SYMBOLNAME NAME X4 F1, F2 ZNR LED1 LED2

WIRING DIAGRAM

PK-1.6GKL PK-2GKL

NOTES :

1. Since the indoor fan motor (MF) is connected with 230, 240V power. If 220V power is used, change the dip switch (SW8) on the indoor controller board as shown in fig : w2.

fig w2

Indoor fan motor (MF)for 220V.

ON OFF

1

SW8

2 3 4

56

ON OFF

1

SW8

2 3 4

56

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

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

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

11

6

INDOOR UNIT PK-1.6GKL PK-2GKL

OUTDOOR UNIT PU-1.6/2J series

Indoor heat exchanger

Pipe temperature thermistor RT2

Distributor

Flexible tube

Flared connection

Refrigerant pipe [15.88(5/8") (with insulator) option

Refrigerant pipe [9.52(3/8") (with insulator) option

Ball valve

Low pressure switch

Charge pIug

Check plug

High pressure switch

Outdoor heat exchanger

Strainer

Capillary tube for injection (Only PU-2VJA

2)

Capillary tube

Compressor

Accumulator

Ball valve (with service port)

flow of refrigerant

PU-1.6 (O.D.3.2 I.D.1.8 OR900) PU-2 (O.D.4.0 I.D.2.0 OR430)

REFRIGERANT SYSTEM DIAGRAM

PK-1.6GKL / PU-1.6VLJA2 PK-2GKL / PU-2VJA2

Unit : mm

12

7

OPERATION FLOW-CHART

MAIN OPERATION

START

YES

NO

YES

NO

w1

YES

Set time

complete

YES

NO

w2

Trouble

Trouble STOP

PROTECTION DEVICE

SELF HOLD

NO

YES

w3

Remote controller

trouble display

Remote controller

operation display

Operating mode

(COOL)

NO

Operating mode

(DRY)

NO

YES

COOL operation

YES

DRY operation

Power circuit

breaker

1

YES

Check SW

ON twice

Operation SW

ON

“OFF” timer

NO

“ON” timer

Set time

complete

STOP

PROTECTION DEVICE

SELF HOLD RELEASE

Remote controller

indicator lamp OFF

w6

Indoor side

FAN operation

w4

Fan STOP

Outdoor side

w5

Compressor OFF

Fan STOP

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

● P7-System error

● P8-Outdoor unit trouble

w3 The CHECK switch will indicate 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 time-delay functions after compressor stops. w6 In FAN mode, fan speed and vane operation depend on the remote controller setting. (Compressor is OFF.)

13

COOLING OPERATION

COOL operation

NO

Vane setting notch

Initial

COOLING

w8

50 deg downward angle 60 deg downward angle

NO

Vane horizontal

w9

YES

Vane initial

setting

Vane

YES

Fan speed

LOW

YES

Downward discharge

1 hour

YES

airflow

Compressor

thermostat

ON

Allowance

cancel

NO

YES

NO

w11

YES

3-minute

time delay

6-minute time delay

3-minute

compressor

operation

w10

Coil frost protection

Cooling area

NO

YES

NO

YES

NO

Allowance

period

NO

6 minute

time delay

Allowance set

YES

Coil frost protection

YES

10-minute

NO

Allowance cancel

NO

Compressor ON

compressor

operation

YES

Coil frost

prevention

NO

16-minute

compressor

operation

YES

Indoor pipe

temperature is

1°C or lower

NO

1

YES

Coil frost

prevention

Compressor OFF

Pipe

YES

NO

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

NO

1 min continue

FAN speed

FAN speed LOW 5 min

LOW

elapse

YES

NO

YES

Outdoor unit

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. w10After 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.

w11Heating 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.

14

DRY OPERATION

DRY

operation

Vane

setting notch

NO

YES

NO

Initial dry

operation

YES

Vane initial setting

w12

Room temperature is

18°C or lower

NO

During

compressor ON

YES

3-minute

compressor

operation

YES

Compressor & thermostat ON

YES

w8

w9

NO

YES

3-minute

time delay

NO

Compressor &

thermostat

ON

NO

YES

w9

Compressor ON

time completes

YES

10-minute compressor

OFF timer start

Compressor OFF

Fan STOP

1

w8~9 Refer to page 20~21. 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 20~21.

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.

NO

w14

10-minute

compressor

OFF

YES

Compressor ON

time set

Compressor ON

Fan speed LOW

NO

w13

w14

15

8

FILTER CHECK MODE TEST RUN

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-FAN 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

WIRED REMOTE

CONTROLLER (OPTION)

INPUT from indoor unit

● Room temperature thermistor (RT1)

● Pipe temperature thermistor (RT2)

OUTPUT to indoor unit

● Auto vane’s angle setting.

● Emergency stop.

Independent Control of Outdoor Unit

● Compressor protection device working

● Crankcase heater control ON-OFF.

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.

12

Non-polar two-wire cable

Outdoor unit

12VDC

1 2

WIRELESS

REMOTE

CONTROLLER

● Compressor and outdoor fan : ONOFF.

OUTPUT to outdoor unit

16

2. INDOOR UNIT CONTROL

Minimum 3 minutes w1

ON

Thermostat

Indoor fan

Auto vane

Compressor

ON

LOW or HIGH LOW or HIGH

OFF

ON

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.

FILTER

CHECK MODE

TEST RUN

ON/OFF

CHECK

ADDRESS UNIT No. FUNCTION No. SELECTION No.

AM PM

TEST RUN

FUNCTION

˚C

TEMP.

2-1 COOL operation

WIRED REMOTE

CONTROLLER (OPTION)

WIRELESS REMOTE

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

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

NOTE: Set temperature changes 1°C when the or

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

CONTROLLER

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 pipe temperature thermistor (RT2) reads 1°C or below after the compressor has been continuously operated for at least 16 minutes or more. When the pipe temperature rises to 10°C or above, the compressor will start in a 3-minute(w2) time delay. w2 When the pipe 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.

17