Mitsubishi Electronics PL18FK21, PL30FK21, PL24FK21, PL42FK21, PL36FK31 User Manual

PL12FK1

PL18FK21

PL24FK21

PL30FK21

PL36FK31

PL42FK21

CONTENTS

1.TECHNICAL CHANGE ··················································································OC194- 2

2.FEATURES ····································································································OC194- 3

3.PART NAME AND FUNCTIONS ····································································OC194- 4

4.SPECIFICATIONS ··························································································OC194- 6

5.DATA ··············································································································OC194- 8

6.OUTLINES AND DIMENSIONS ····································································OC194-17

7.REFRIGERANT SYSTEM DIAGRAM ····························································OC194-19

8.WIRING DIAGRAM ························································································OC194-20

9.OPERATION FLOW-CHART··········································································OC194-22

10.MICROPROCESSOR CONTROL ··································································OC194-25

11.TROUBLESHOOTING ····················································································OC194-36

12.4-WAY AIR FLOW SYSTEM ········································································OC194-43

13.SYSTEM CONTROL ······················································································OC194-50

14.DISASSEMBLY PROCEDURE ······································································OC194-55

15.PARTS LIST ··································································································OC194-57

16.OPTIONAL PARTS ························································································OC194-63

OC194-1

1			TECHNICAL CHANGE
Differences with OC001 which is a basic service manual.
				Change points					FK2	FK21
				Appearances					4-3/4 o 4-3/4 o 5/8	5-1/8 o 4-3/4 o 3/4
Remote						SW17		No.9	Switch for temperature unit	Canceled
				Dip switch				No.0	Switch for louvers	Canceled
	controller
						SW18			—	Addition of "Mode selector"
						SW1		No.10	OFF	ON
				Dip switch		SW5		No.3	Control change of the normal and twin	Addition of "Not yet used"
Indoor controller
								No.4	Change of the unit No.1 and No.2	Addition of "LOSSNAY interlocked or not"
						SW6			—	Addition of "Mode selector"
				Connector for LOSSNAY interlocked					—	Addition of "CN2L"
Optional parts					Program timer				PAC–SK65PT	PAC–SC32PTA

OC194-2

2 FEATURES

			SWING
	TIMER OFF TIMER	CLOCK AUTO AUTO	FAN
	FAN CHECK SET TEMP.	START STOP		FILTER
			SPEED
			AUTO	CHECK MODE
			RETURN

TEST RUN

Remote controller

	Unit
Models	Cooling capacity	SEER
PL12FK1	12,300 Btu/h	10.4
PL18FK21	18,400 Btu/h	10.2
PL24FK21	23,600 Btu/h	10.0
PL30FK21	31,000 Btu/h	10.4
PL36FK31	36,100 Btu/h	10.0
PL42FK21	42,500 Btu/h	10.0

1.SPACE-SAVING CENTRALLY LOCATED CEILING RECESSED INSTALLATION

2.4-WAY AIR FLOW SYSTEM

This series allows you to select from 2, 3, and 4 way air flow directions according to your requirement. As a result, you get superb flexibility in choosing a configuration that gives you maximum cooling efficiency in a neat and unobstructive installation.

3. STABLE COOLING EVEN AT OUTDOOR TEMPERATURES AS LOW AS 0-F MAKES

YEARROUND AIR-CONDITIONING POSSIBLE. WIND BAFFLE REQUIRED.

The microprocessor automatically adjusts fan speed in accordance with outdoor temperature to maintain the coolant at an even condensing temperature. The result is smooth, efficient cooling even when temperatures outdoors drop as low as 0-F. This makes the unit ideal for a wide range of specialized cooling needs, such as rooms with many office machines or computers and areas subject to strong sunlight.

4.ADVANCED MICROPROCESSOR CONTROL

(1)Easy to use Microprocessor (remote controller)

1)Ultra-Thin Remote Controller

The streamlined, wide controller is designed to blend with any kind of interior and the adoption of a sophisticated microprocessor allows you to carry out a wide range of operations easily.

2)Attractive Liquid Crystal Display (LCD)

Units operation mode, set temperature, room temperature, timer setting, fan speed, and air flow direction are displayed on the remote controller with the easily understood visual Liquid Crystal Display (LCD).

3)Convenient 24-Hour ON-OFF Timer

The timer allows Mr.SLIM to be switched on or off automatically at the time is shown on the LCD.

4)Self-Diagnostic Feature Indicates Faults Instantly

In the rare case when a problem occurs, the unit stops operating and the set temperature indicator changes to the selfdiagnostic indicator, indicating the location of the fault.

If the check switch is pressed twice, the unit stops operating and the check mode is initiated. The cause of the most recent problem stored in the memory is displayed on the LCD. This is extremely useful for maintenance purposes.

5)Useful Memory Feature for Storing Instructions

The previous set value is memorized so that constant temperature control can be obtained. This is convenient when, for example, a power failure occurs.

(2)Non-polar Two-Wire Remote Controller Cables

The non-polar, two-wire type remote controller cable is slim, installation is simple and trouble-free. Remote controller wire can be extended up to 550 yards.

OC194-3

3 PART NAMES AND FUNCTIONS

Remote controller

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

Remote controller operation buttons

TIMER ON/OFF button

This switches between continuous operation and the timer operation.

CLOCK/TIMER button

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

OPERATION MODE button

Press this button to switch the cooling, electronic dry (Dehumidify),fan modes.

SET TEMPERATURE button

This sets the room temperature. The temperature setting can be performed in 2-F units.

Setting range :

Cooling 65-F to 87-F

FAN SPEED button

This sets the fan speed.

DRY COOL			SWING	F
	TIMER OFF TIMER CLOCK AUTO AUTO
FAN	CHECK SET TEMP.	START STOP FAN
		SPEED	AUTO
			RETURN
MODE	TIMER ON/OFF CLOCK/TIMER FAN SPEED			AIR DISCHARGE FILTER
				AIR SWEEP CHECK
	SET TEMP.	TIMER SET		TEST RUN

REMOTE CONTROLLER

PAR-JC240KUS

ON/OFF button

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

AIR DISCHARGE button

This adjusts the vertical angle of the ventilation.

FILTER button

This resets the filter service indication display.

AIR SWEEP button

This switches the horizontal fan motion (Swing louver) ON and OFF.

(This button does not operate in this models.)

CHECK-TEST RUN button

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

OC194-4

Remote controller display

CENTRALLY CONTROLLED display

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

TIMER display

This indicates when the continuous operation and time operation modes are set.

It also display the time for the timer operation at the same time as when it is set.

OPERATION MODE display

This indicates the operation mode.

CHECK display

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

CLOCK display

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

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

AIR DISCHARGE display

This displays the air direction.

FAN SPEED display

The selected fan speed is displayed.

DRY COOL			SWING	F
	TIMER OFF TIMER CLOCK AUTO AUTO
FAN	CHECK SET TEMP.	START STOP FAN
		SPEED	AUTO
			RETURN
MODE	TIMER ON/OFF CLOCK/TIMER FAN SPEED			AIR DISCHARGE FILTER
				AIR SWEEP CHECK
	SET TEMP.	TIMER SET		TEST RUN
REMOTE CONTROLLER
PAR-JC240KUS

F display	display
This displays the selected setting	This lamp lights when electricity is
temperature.	supplied to the unit.

F display

The temperature of the return air is displayed during operation. The display range is 47°F to 97°F. The display flashes 47°F when the actual temperature is less than 47°F and flashes 97°F when the actual temperature is greater than 97°F.

Operation lamp

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

CHECK MODE

display

TEST RUN

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

FILTER display

This lamp lights when the filter needs to be cleaned.

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

● When power is turned ON for the first time the (CENTRAL CTRL) display appears to go off momentarily but this is not a malfunction. ● When the control remote control unit, which is sold separately, is used the ON-OFF button,OPERATION MODE button and SET

TEMP. button do not operate.

●“NOT AVAILABLE” is displayed when the AIR SWEEP button are pressed. (AIR SWEEP function is not provided for PL series.)

OC194-5

4 SPECIFICATIONS

MODELS : PL12FK1, PL18/24FK21

Model

PL12FK1

PL18FK21

Item

*1

Btu/h

Capacity

18,400

112,300

Power Consumption

kW

1.23

1.88

EER

*1

10.0

9.8

SEER

*1

10.4

10.2

INDOOR UNIT MODELS

PL18FK2

1

PL12FK1

External finish

Galvanized sheets with gray heat insulation

Power supply

V,phase,Hz

115 , 1 , 60

Max.fuse size (time delay)

A

15

15

Min.ampacity

A

2.0

2.0

Fan motor

F.L.A.

0.75

0.85

Dry

CFM

680-460

570-540

Airflow

Hi-Lo

Wet

CFM

650-440

420-400

Moisture removal

Pints/h

3.8

5.3

Sound level Hi-Lo

dB

43-35

45-38

Cond. drain pipe O.D.

in.

1-1/4

1-1/4

W

in.

32-1/4

Dimensions

D

in.

32-1/4

H

in.

10-1/8

Weight

60

64

External finish

Munsell 0.70Y 8.59/0.97

GRILLE

H

in.

2-3/8

INDOOR

W

in.

36-5/8

Dimensions

D

in.

36-5/8

Weight

22

OUTDOOR UNIT MODELS

PU12EK

PU18EK1

External finish

Munsell 5Y 7/1

Sound level

dB(A)

50

53

Power supply

V, phase, Hz

208-230, 1, 60

Max. fuse size (time delay)

A

15

20

Min. ampacity

A

11

16

Fan motor

F.L.A.

0.65

0.75

Model (type)

RH167NAB

RH247NAB

Compressor

R.L.A.

8.9

12

L.R.A.

29

37

Crankcase heater

A(W)

0.11/0.12 (23/28)

0.11/0.12 (23/28)

Refrigerant control

Capillary tube

W

in.

34-1/4

Dimensions

D

in.

11-5/8

H

in.

25-5/8

33-1/2

Weight

lb

105

154

REMOTE CONTROLLER

With indoor unit

Control voltage (by bulit-in. transformer)

indoor unit - remote controller : DC12V, Indoor unit - outdoor unit

REFRIGERANT PIPING

Not supplied (optional parts)

Pipe size

Liquid

in.

3/8

3/8

Gas

in.

5/8

5/8

Connection method

Indoors

Flared

Outdoors

Flared

Between the indoor

Height difference

ft

130

130

& outdoor units

Piping length

ft

130

130

NOTES : *1.Rating conditions —indoor : 80°FDB,67°FWB outdoor : 95°FDB,75°FWB.

PL24FK21

23,600

2.48

9.5

10.0

PL24FK21

15

2.0

1.1

750-550

660-480

6.8

47-39

1-1/4

64

PU24EK1

55

20

16 0.65+0.65

NH33NBD 11.5

54 0.16/0.17 (33/39)

49-9/16

207

: DC12V

3/8 5/8

164

164

Operating range

			Indoor intake air temperature		Outdoor intake air temperature
Cooling		Maximum		95°FDB,71°FWB	115°FDB
		Minimum		67°FDB,57°FWB	0°FDB*
* In	case of the wind baffle is installed.

(In case of the wind baffle is not installed, the minimum temperature will be 23°FDB.)

OC194-6

MODELS : PL30FK21, PL36FK31, PL42FK21

Model

PL30FK21

PL36FK31

Item

*1

Btu/h

Capacity

31,000

36,100

Power Consumption

kW

3.10

3.76

EER

*1

10.0

9.6

SEER

*1

10.4

10.0

INDOOR UNIT MODELS

PL36FK3

1

PL30FK21

External finish

Galvanized sheets with gray heat insulation

Power supply

V,phase,Hz

115 , 1 , 60

Max.fuse size (time delay)

A

15

15

Min.ampacity

A

2.0

2.0

Fan motor

F.L.A.

1.0+1.0

1.0+1.0

Dry

CFM

1,170-850

Airflow

Hi-Lo

1,170-850

Wet

CFM

1,090-790

1,090-790

Moisture removal

Pints/h

9.6

10.9

Sound level Hi-Lo

dB

49-41

49-41

Cond. drain pipe O.D.

in.

1-1/4

1-1/4

W

in.

52-3/4

Dimensions

D

in.

32-1/4

H

in.

10-1/8

Weight

99

99

External finish

Munsell 0.70Y 8.59/0.97

GRILLE

H

in.

2-3/8

INDOOR

W

in.

57-1/8

Dimensions

D

in.

36-5/8

Weight

35

OUTDOOR UNIT MODELS

PU30EK1

PU36EK1

External finish

Munsell 5Y 7/1

Sound level

dB(A)

55

55

Power supply

V, phase, Hz

208-230, 1, 60

Max. fuse size (time delay)

A

30

30

Min. ampacity

A

20

22

Fan motor

F.L.A.

0.65-0.65

0.75+0.75

Model (type)

NH41NAD

NH47NAD

Compressor

R.L.A.

14.0

17.5

L.R.A.

73

87

Crankcase heater

A(W)

0.16/0.17 (33/39)

0.16/0.17 (33/39)

Refrigerant control

Capillary tube

W

in.

34-1/4

38-3/16

Dimensions

D

in.

11-5/8

13-9/16

H

in.

49-9/19

Weight

lb

208

154

REMOTE CONTROLLER

With indoor unit

Control voltage (by bulit-in. transformer)

indoor unit - remote controller : DC12V, Indoor unit - outdoor unit

REFRIGERANT PIPING

Not supplied (optional parts)

Pipe size

Liquid

in.

1/2

1/2

Gas

in.

3/4

3/4

Connection method

Indoors

Flared

Outdoors

Flared

Between the indoor

Height difference

ft

164

164

& outdoor units

Piping length

ft

164

164

NOTES : *1.Rating conditions —indoor : 80°FDB,67°FWB outdoor : 95°FDB,75°FWB.

PL42FK21

42,500

4.40

9.7

10.0

PL42FK21

15

3.0

1.2+1.2

1,270-920

1,200-870

12.6

49-42

1-1/4

101

PU42EK2

56

40

27 0.8+0.8

NH569NXA

20

105 0.16/0.17 (33/39)

38-3/16

13-9/16

260

: DC12V

1/2 3/4

164

164

Operating range

			Indoor intake air temperature		Outdoor intake air temperature
Cooling		Maximum		95°FDB,71°FWB	115°FDB
		Minimum		67°FDB,57°FWB	0°FDB*
* In	case of the wind baffle is installed.

(In case of the wind baffle is not installed, the minimum temperature will be 23°FDB.)

OC194-7

5 DATA

MODELS : PL12FK1, PL18/24/30FK21, PL36FK31, PL42FK21

1.PERFORMANCE DATA

1)COOLING CAPACITY

		Indoor air									Outdoor intake air DB temperature(°F)
Models		Airflow			IWB		75			85			95			105			115
		(CFM)
					(°F)	TC	SHC	TPC	TC	SHC	TPC	TC	SHC	TPC	TC	SHC	TPC	TC	SHC	TPC
		B.F
					71	14.3	7.1	1.06	13.8	6.9	1.16	13.2	6.8	1.27	12.6	6.6	1.38	11.9	6.4	1.50
		420
PL12FK1					67	13.2	8.4	1.03	12.8	8.2	1.12	12.3	8.0	1.23	11.8	7.8	1.34	11.2	7.6	1.46
	0.27
					63	12.1	9.3	0.99	11.8	9.1	1.08	11.4	9.0	1.18	11.1	8.8	1.29	10.4	8.4	1.40
					71	21.2	14.6	1.64	20.6	13.6	1.77	19.6	12.5	1.93	18.7	11.6	2.10	17.9	10.6	2.23
PL18FK21		650
					67	19.8	16.0	1.60	19.1	15.1	1.73	18.4	14.0	1.88	17.5	12.8	2.03	16.5	11.7	2.17
	0.17
					63	18.5	17.2	1.56	17.9	16.1	1.70	17.1	15.0	1.83	16.3	13.9	1.98	15.3	12.7	2.12
					71	27.4	17.8	2.15	26.5	16.7	2.36	25.3	15.2	2.57	24.0	13.8	2.77	22.8	12.5	3.00
PL24FK21		660
					67	25.6	19.5	2.10	24.7	18.0	2.30	23.6	16.8	2.48	22.6	15.4	2.69	21.4	13.9	2.90
	0.13
					63	23.8	20.5	2.05	22.9	19.0	2.24	22.1	18.1	2.43	21.0	16.6	2.62	20.0	15.2	2.81
					71	35..8	19.4	2.65	34.5	19.1	2.88	33.5	18.8	3.17	31.4	18.5	3.44	29.6	18.0	3.76
PL30FK21		1090
					67	33.2	22.6	2.59	31.9	22.1	2.81	31.0	21.6	3.10	28.8	20.9	3.35	27.4	20.4	3.63
	0.15
					63	30.9	25.1	2.53	29.8	24.6	2.75	29.0	23.9	3.02	26.9	23.1	3.28	25.6	22.5	3.55
					71	41.7	27.1	3.22	40.3	25.4	3.52	38.6	23.5	3.85	36.8	22.1	4.22	34.9	20.2	4.56
PL36FK31		1090
					67	38.9	29.6	3.15	37.5	28.1	3.44	36.1	26.4	3.76	34.5	24.5	4.10	32.5	22.4	4.42
	0.15
					63	36.4	32.0	3.08	35.1	30.2	3.36	33.5	28.1	3.67	31.9	26.2	4.00	30.2	24.2	4.30
					71	49.6	32.3	3.95	47.8	30.0	4.25	45.8	28.0	4.60	43.5	25.7	4.85	41.2	23.1	5.20
PL42FK21		1200
					67	46.1	35.0	3.88	44.3	32.8	4.10	42.5	30.6	4.40	40.2	28.2	4.65	37.7	25.3	4.95
	0.14
					63	42.8	37.2	3.80	41.1	34.9	4.00	39.3	32.6	4.28	37.1	29.7	4.45	34.8	27.1	4.75

Notes 1. B.F. : Bypass Factor, IWB : Intake air wet-bulb temperature

TC : Total Capacity (x103 Btu/h), SHC : Sensible Heat Capacity (x103 Btu/h)

TPC : Total Power Consumption (kW)

2.SHC is based on 80°F of indoor intake air DB temperature.

2)COOLING CAPACITY CORRECTIONS

			Refrigerant piping length (one way)
MODEL
	25ft (std)	40ft	55ft	70ft	85ft	100ft	115ft		130ft	150ft			164ft
PL12FK1	1.0	0.992	0.983	0.978	0.966	0.959	0.950		0.945
PL18FK21
	1.0	0.981	0.968	0.952	0.940	0.925	0.913		0.900	0.886			0.874
PL24FK21
PL30FK21	1.0	0.981	0.968	0.952	0.940	0.925	0.913		0.900	0.886			0.874
PL36FK31	1.0	0.981	0.968	0.952	0.940	0.925	0.913	0.900		0.886			0.874
PL42FK21	1.0	0.975	0.955	0.935	0.918	0.900	0.884		0.869	0.855			0.840

OC194-8

2. PERFORMANCE CURVE

NOTES : A point on the curve shows the reference point.

PL12FK1 COOLING CAPACITY

PL18FK21 COOLING CAPACITY

Total power consumption (kW) Total capacity (x103 Btu/h)

18																				SHF=0.77					Btu/h)
								Indoor intake air WB temperature ( F)
																									(x103
18																								71	capacity
																								67
																								63	Total
6																									(kW)
1.6																								71
																									consumption
1.4																								67
																								63
1.2																									power
1.0
0.8									Indoor intake air WB temperature ( F)																Total
0
	32		35		45			55			65(67)			75		85		95		105		115

Outdoor intake air DB temperature (F)

24

21

18

15

12

3.0

2.5

2.0

1.5

1.0

0

SHF=0.76

Indoor intake air WB temperature (F)

71

67

63

	71
Indoor intake air WB temperature ( F)	67
	63

32 35

45

55

65(67)

75

85

95

105

115

Outdoor intake air DB temperature (F)

OC194-9

NOTES : A point on the curve shows the reference point.

PL24FK21 COOLING CAPACITY

PL30FK21 COOLING CAPACITY

Total power consumption (kW) Total capacity (x103 Btu/h)

36																			SHF=0.71					Btu/h)3
																								(x10
30
			Indoor intake air WB temperature ( F)
24																							71	capacity
																								Total
																							67
18																							63
																								(kW)
3.5
																							71	consumption
3.0
																							67
2.5		Indoor intake air WB temperature ( F)																					63
																								power
2.0
																								Total
1.5
23		32 35				45		55		65(67)			75		85		95		105			115

Outdoor intake air DB temperature (F)

SHF=0.76

42

Indoor intake air WB temperature (F)

36

30

71

67

63

24

	4.0		71
	3.5		67
		Indoor intake air WB temperature ( F)	63
	3.0
	2.5

23 32 35 45 55 65(67) 75 85 95 105 115

Outdoor intake air DB temperature (F)

Total power consumption (kW) Total capacity (x103 Btu/h)

48

42

36

30

4.5

4.0

3.5

3.0

2.5

PL36FK31 COOLING CAPACITY

PL42FK21 COOLING CAPACITY

	SHF=0.73	Btu/h)
Indoor intake air WB temperature ( F)
	71	capacity (x103
		Total
	67
	63

Indoor intake air WB temperature (F)

	71	(kW)
	67	consumptionpowerTotal
	63

54

48

42

36

2.0

1.5

SHF=0.72 Indoor intake air WB temperature (F)

71

67

63

		71
	Indoor intake air WB temperature ( F)	67
		63

23	32 35	45	55	65(67)	75	85	95	105	115	23	32 35	45	55	65(67)	75	85	95	105	115
		Outdoor intake air DB temperature ( F)										Outdoor intake air DB temperature ( F)

OC194-10

3. CONDENSING PRESSURE AND SUCTION PRESSURE

Data is based on the condition of indoor humidity 50%. Air flow should be set at HI.

A point on the curve shows the reference point.

<PL12FK1>

COOLING MODE

(psi.G)
	350
	340
	330																					86
	320
																						80
	310																					75
	300																					70
	290
pressure	280
	270
	260
Condensing	250
	210
	240
	230
	220
	200					Indoor DB
	190			temperature( F)
	180
	170
	160
	150
		30			40		50			60		70		80		90		100		110
							Outdoor ambient temperature													DB( F)

(psi.G) 100

90

80

	pressure
		70
		60
	Suction
		50
		40
		30
		20

	86
	80
Indoor DB temperature( F)	75
	70

30	40	50	60	70	80	90	100	110
		Outdoor ambient temperature						DB( F)

<PL18FK21>

COOLING MODE

(psi.G)
	350
	340																					86
	330																						(psi.G)
	320																					80
	310																					75		100
	300																				70
	290																							90
Condensingpressure	280																						pressureSuction
					Indoor		DB
	200
	270																							80
	260
	250																							70
	240
	230																							60
	220
	210																							50
			temperature( F)																					40
	190
	180
	170																							30
	160
	150																							20
		30		40		50		60			70		80		90		100		110
						Outdoor ambient temperature													DB( F)

	86
	80
Indoor DB temperature( F)	75
	70

30	40	50	60	70	80	90	100	110
		Outdoor ambient temperature						DB( F)

OC194-11

Data is based on the condition of indoor humidity 50%. Air flow should be set at HI.

A point on the curve shows the reference point.

<PL24FK21> COOLING MODE

(psi.G)
	350
	340
	330
	320																					86
	310
																						80
	300
																						75
	290
																						70
pressure	280
	270
	260
Condensing	250
	210
	240
	230
	220
	200				Indoor DB
	190		temperature( F)
	180
	170
	160
	150
		30		40		50				60		70		80		90		100		110
						Outdoor ambient temperature														DB( F)

(psi.G)

100

		90
		80
	pressure
		70
		60
	Suction
		50
		40
		30
		20

86

80

Indoor DB temperature( F)

75

70

30	40	50	60	70	80	90	100	110
		Outdoor ambient temperature						DB( F)

<PL30FK21>

		COOLING MODE
(psi.G)
	350
	340
	330																				86
	320																				80
	310																				75
	300																				70
	290
pressure	280
	270
	260
Condensing	250
	210
	240
	230
	220
	200				Indoor DB
	190		temperature( F)
	180
	170
	160
	150
		30		40		50			60		70		80		90		100		110
						Outdoor ambient temperature													DB( F)

(psi.G)

100

		90
		80
	pressure
		70
		60
	Suction
		50
		40
		30
		20

86

80

Indoor DB temperature(F)

75

70

30	40	50	60	70	80	90	100	110
		Outdoor ambient temperature						DB( F)

OC194-12

Data is based on the condition of indoor humidity 50%. Air flow should be set at HI.

A point on the curve shows the reference point.

<PL36FK31> COOLING MODE

(psi.G)
	350
	340
	330																				86
	320
																					80
	310
																					75
	300																				70
	290
pressure	280
	270
	260
Condensing	250
	210
	240
	230
	220
	200				Indoor DB
	190		temperature( F)
	180
	170
	160
	150
		30		40		50			60		70		80		90		100		110
						Outdoor ambient temperature													DB( F)

(psi.G) 100

		90
		80
	pressure
		70
		60
	Suction
		50
		40
		30
		20

86

80

Indoor DB temperature( F)

75

70

30	40	50	60	70	80	90	100	110
		Outdoor ambient temperature						DB( F)

<PL42FK21>

		COOLING MODE
(psi.G)
	350
	340
	330
	320																				86
	310																				80
	300																				75
																					70
	290
pressure	280
	270
	260
Condensing	250
	210
	240
	230
	220
	200				Indoor DB
	190		temperature( F)
	180
	170
	160
	150
		30		40		50			60		70		80		90		100		110
						Outdoor ambient temperature													DB( F)

(psi.G) 100

90

80

	pressure
		70
		60
	Suction
		50
		40
		30
		20

Indoor DB temperature(F)

86

80

75

70

30	40	50	60	70	80	90	100	110
		Outdoor ambient temperature						DB( F)

OC194-13

4. STANDARD OPERATION DATA

Total

Electrical circuit

Refrigerant circuit

Outdoor side Indoor side

		Model				PL12FK1	PL18FK21	PL24FK21	PL30FK21	PL36FK31	PL42FK21
		Item			Unit	Cooling	Cooling	Cooling	Cooling	Cooling	Cooling
	Capacity				Btu / t	12,300	18,400	23,600	31,000	36,100	42,500
	SHF				—	0.77	0.76	0.71	0.76	0.73	0.72
	Input				kW	1.23	1.88	2.48	3.1	3.76	4.40
	INDOOR UNIT MODEL					PL12FK1	PL18FK21	PL24FK21	PL30FK21	PL36FK31	PL42FK21
	Power supply (V, phase, Hz)					115, 1, 60	115, 1, 60	115, 1, 60	115, 1, 60	115, 1, 60	115, 1, 60
	Input				kW	0.10	0.10	0.12	0.1+0.1	0.1+0.1	0.13+0.13
	Fan current				A	0.75	0.85	1.06	0.9+0.9	0.9+0.9	1.15+1.15
	OUTDOOR UNIT MODEL					PU12EK	PU18EK1	PU24EK1	PU30EK1	PU36EK1	PU42EK21
	Power supply (V, phase, Hz)					208/230, 1, 60	208/230, 1, 60	208/230, 1, 60	208/230, 1, 60	208/230, 1, 60	208/230, 1, 60
	Input				kW	1.13	1.78	2.36	2.90	3.56	4.14
	Comp. current				A	8.9	12.0	11.5	14.0	15.9	20.4
	Fan current				A	0.75	0.75	0.65+0.65	0.65+0.65	0.75+0.75	0.8+0.8
	Condensing pressure				psi•G	246	252	236	237	249	236
	Suction pressure				psi•G	82	79	74	76	75	70
	Discharge temp.				°F	154	161	162	165	164	166
	Condensing temp.				°F	116	117	113	113	115	113
	Suction temp.				°F	50	51	45	47	46	44
	Ref. pipe length				ft	25	25	25	25	25	25
	Refrigerant charge				—	4 lbs 14oz	5 lbs 8 oz	9 lbs 15 oz	10 lbs 2 oz	10 lbs 9 oz	12 lbs 9 oz
				DB	°F	80	80	80	80	80	80
	Intake air temperature
				WB	°F	67	67	67	67	67	67
				DB	°F	64	60	57	59	59	58
	Discharge air temperature
				WB	°F	60	58	56	58	57	56
	Fan speed (High)				rpm	590	680	710	660	660	710
	Airflow (High)				CFM	420	650	660	1,090	1,090	1200
				DB	°F	95	95	95	95	95	95
	Intake air temperature
				WB	°F	—	—	—	—	—	—
	Fan speed upper / lower				rpm	790	790	750 750	750 750	760 760	840	840
	Airflow				CFM	1,590	1,590	3,170	3,170	3,350	3,530

5.OPERATING RANGE

1)POWER SUPPLY

	Rating	Allowable voltage
Indoor unit	115V 1 phase 60Hz	Min. 103V	— Max. 127V
Outdoor unit	208/230V 1 phase 60Hz	Min. 198V	— Max. 253V

2) OPERATION

Intake air temperature	Indoor			Outdoor
Function	DB (°F)	WB (°F)	DB (°F)
Condition				WB (°F)
Standard temperature	80	67	95	75
Maximum temperature	95	71	115	75
Cooling	67	57	0
Minimum temperature				—
Maximum humidity	80	75	80	75

OC194-14

6.OUTLET AIR SPEED AND COVERAGE RANGE

						PL12FK1	PL18FK21	PL24FK21	PL30FK21	PL36FK31	PL42FK21
	Standard		Airflow		(CFM)	570	680	750	1,170	1,170	1,270
			Air speed	(ft / sec.)		9.5	11.3	12.5	10.5	10.5	11.4
	height
			Coverage range		(ft)	18	21	23	27	27	29

•The air coverage range is the value up to the position where the air speed is 0.8ft/sec. when air is blown out horizontally from the unit at the High fan setting.

The coverage range should be used only as a general guideline since it varies according to the size of the room and furniture installed inside the room.

7. NOISE CRITERION CURVES

PL12FK1						NOTCH		SPL(dB)	LINE
							Hi	43
							Lo	35
	90
BAR	80
MICRO
dB re 0.002	70								NC-70
	60
LEVEL,
									NC-60
PRESSURE	50
									NC-50
	40
SOUND
									NC-40
BAND	30
									NC-30
OCTAVE	20	APPROXIMATE
		THRESHOLD OF
		HEARING FOR							NC-20
		CONTINUOUS
		NOISE
	10	63	125	250	500	1000	2000	4000	8000

BAND CENTER FREQUENCIES, Hz

PL18FK21						NOTCH		SPL(dB)	LINE
							Hi	45
							Lo	38
	90
BAR	80
MICRO
dB re 0.002	70								NC-70
	60
LEVEL,
									NC-60
PRESSURE	50
									NC-50
	40
SOUND
									NC-40
BAND	30
									NC-30
OCTAVE	20	APPROXIMATE
		THRESHOLD OF
		HEARING FOR							NC-20
		CONTINUOUS
		NOISE
	10	63	125	250	500	1000	2000	4000	8000

BAND CENTER FREQUENCIES, Hz

OC194-15

8. NOISE CRITERION CURVES

PL24FK21						NOTCH		SPL(dB)	LINE
							Hi	47
							Lo	39
	90
BAR	80
MICRO
dB re 0.002	70								NC-70
	60
LEVEL,
									NC-60
PRESSURE	50
									NC-50
	40
SOUND
									NC-40
	30
BAND
									NC-30
OCTAVE	20	APPROXIMATE
		THRESHOLD OF
		HEARING FOR							NC-20
		CONTINUOUS
		NOISE
	10	63	125	250	500	1000	2000	4000	8000

BAND CENTER FREQUENCIES, Hz

PL42FK21						NOTCH		SPL(dB)	LINE
							Hi	49
							Lo	42
	90
BAR	80
MICRO
dB re 0.002	70								NC-70
	60
LEVEL,
									NC-60
PRESSURE	50
									NC-50
	40
SOUND
									NC-40
	30
BAND
									NC-30
OCTAVE	20	APPROXIMATE
		THRESHOLD OF
		HEARING FOR							NC-20
		CONTINUOUS
		NOISE
	10	63	125	250	500	1000	2000	4000	8000

BAND CENTER FREQUENCIES, Hz

PL30FK21						NOTCH		SPL(dB)	LINE
PL36FK31							Hi	49
							Lo	41
	90
BAR	80
MICRO
dB re 0.002	70								NC-70
	60
LEVEL,
									NC-60
PRESSURE	50
									NC-50
	40
SOUND
									NC-40
	30
BAND
									NC-30
OCTAVE	20	APPROXIMATE
		THRESHOLD OF
		HEARING FOR							NC-20
		CONTINUOUS
		NOISE
	10	63	125	250	500	1000	2000	4000	8000

BAND CENTER FREQUENCIES, Hz

UNIT

CEILING

5ft

MICROPHONE

Ambient temperature 80˚F

Test conditions are based on JIS Z8731

OC194-16

6 OUTLINES AND DIMENSIONS

1. INDOOR UNIT	Unit : inch
PL12FK1/ 18/24FK21

OC194-17

PL30FK21/ 36FK31/ 42FK21	Unit : inch

OC194-18

2.Remote controller

Unit : inch

5-1/8

3/32

23/32

			SWING
	TIMER OFF TIMER	CLOCK AUTO AUTO
FAN	CHECK SET TEMP.	START STOP	FAN	FILTER
			SPEED
			AUTO	CHECK MODE
			RETURN

TEST RUN

4-3/4

3/4

7 REFRIGERANT SYSTEM DIAGRAM

PL12FK1

Unit : inch

PL18/24FK21

Refrigerant pipe

(option)

{5/8"

(with heat insulator)

Flared connection

Strainer

Indoor coil

Refrigerant pipe

thermistor

(option)

RT2

{3/8"

Distributor

(with heat insulator)

Flared connection

PL30FK21

PL36FK31

PL42FK21

Refrigerant pipe

(option)

{3/4"

(with heat insulator)

Flared connection

Strainer

Indoor coil

Refrigerant pipe

thermistor

(option)

RT2

{1/2"

Distributor

(with heat insulator)

Flared connection

OC194-19

8			WIRING DIAGRAM
MODELS PL12FK1 PL18FK21 PL24FK21 WIRING DIAGRAM
SYMBOL			NAME	SYMBOL NAME	SYMBOL	NAME
C1			Fan motor capacitor	SW1<I.B> Switch <mode selector>	X1<I.B>	Auxiliary relay <drain water lift-up
CN1<R.B> Connector <program timer>				SW2<I.B> Switch <address selector>		mechanism/dew prevention heater >
CN2<R.B> Connector <remote switch>				SW3<I.B> Switch <emergency operation>	X3<I.B> Auxiliary relay <vane motor>
CN51<I.B> Connector <centrally control>				SW5<I.B> Switch <model selector>	X5<I.B>	Auxiliary relay <fan motor>

CN2L<I.B> Connector <lossnay>		SW6<I.B>	Switch <model selector>
DP	Drain water lift-up mechanism	SW17<R.B> Switch <address selector>
DS	Drain sensor	SW18<R.B> Switch <function selector>
F1<I.B>	Fuse <6A>	T	Transformer
F2	Fuse <0.5A>	TB2,12	Terminal block <power>
H2	Dew prevention heater <grille>	TB4	Terminal block <indoor/outdoor connecting line>
I.B	Indoor controller board	TB5,6	Terminal block <remote controller transmission line>
LS	Limit switch <vane motor>	TH1	Room temperature thermistor
MF1	Fan motor <with inner thermostat>		<32°F/15k", 77°F/5.4k">
MV	Vane motor <with limit thermostat> TH2		Pipe temperature thermistor
R.B	Remote controller board		<32°F/15k", 77°F/5.4k">

X6<I.B> Auxiliary relay <fan motor> ZNR Varistor

NOTES:

1.Since the outdoor side electric wiring may change be sure to check the outdoor unit electric wiring for servicing. 2.Indoor and outdoor connecting wires are made with polarities,make wiring matching terminals.

3.Symbols used in wiring diagram above are, :Terminal block, , :connector, :PC board insertion tab. 4.Emergency operation

If a trouble occurs with either the remote controller or the indoor microcomputer and no other trouble exists,emergency operation for cooling can be

performed by changing the setting of dip switch (SW3(I.B)) on the indoor controller board (emergency dry operation is not possible).

OC194-20

MODELS PL30FK21 PL36FK31 PL42FK21 WIRING DIAGRAM

SYMBOL	NAME	SYMBOL	NAME	SYMBOL	NAME
C1,2	Fan motor capacitor	SW1<I.B>	Switch <mode selector>	X1<I.B>	Auxiliary relay <drain water lift-up
CN1<R.B> Connector <program timer>		SW2<I.B>	Switch <address selector>		mechanism/dew prevention heater >
CN2<R.B> Connector <remote switch>		SW3<I.B>	Switch <emergency operation>	X3<I.B>	Auxiliary relay <vane motor>
CN51<I.B> Connector <centrally control>		SW5<I.B>	Switch <model selector>	X5<I.B>	Auxiliary relay <fan motor>
CN2L<I.B> Connector <lossnay>		SW6<I.B>	Switch <model selector>	X6<I.B>	Auxiliary relay <fan motor>
DP	Drain water lift-up mechanism	SW17<R.B> Switch <address selector>		ZNR	Varistor
DS	Drain sensor	SW18<R.B> Switch <function selector>
F1<I.B>	Fuse <6A>	T	Transformer
F2	Fuse <0.8A>	TB2,12	Terminal block <power>
H2	Dew prevention heater <grille>	TB4	Terminal block <indoor/outdoor connecting line>
I.B	Indoor controller board	TB5,6	Terminal block <remote controller transmission line>
LS	Limit switch <vane motor>	TH1	Room temperature thermistor
MF1,2	Fan motor <with inner thermostat>		<32°F/15k", 77°F/5.4k">
MV	Vane motor <with limit thermostat> TH2		Pipe temperature thermistor
R.B	Remote controller board		<32°F/15k", 77°F/5.4k">

NOTES:

1.Since the outdoor side electric wiring may change be sure to check the outdoor unit electric wiring for servicing. 2.Indoor and outdoor connecting wires are made with polarities,make wiring matching terminals.

3.Symbols used in wiring diagram above are, :Terminal block, , :connector, :PC board insertion tab. 4.Emergency operation

If a trouble occurs with either the remote controller or the indoor microcomputer and no other trouble exists,emergency operation for cooling can be

performed by changing the setting of dip switch (SW3(I.B)) on the indoor controller board (emergency dry operation is not possible).

OC194-21