Mitsubishi Electric PL42FK21 Manuale utente

OC194-1

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

PL12FK1

PL18FK21

PL24FK21

PL30FK21

PL36FK31

PL42FK21

OC194-2

1TECHNICAL CHANGE

Change points

Optional parts Program timer

FK2

Switch for temperature unit



Switch for louvers



—



OFF



Control change of the normal and twin



Change of the unit No.1 and No.2



—



—



PAC–SK65PT

Canceled



Canceled



Addition of "Mode selector"



Addition of "Not yet used"



Addition of "LOSSNAY interlocked or not"



Addition of "Mode selector"



Addition of "CN2L"



PAC–SC32PTA

FK21

SW17



SW18



SW1



SW5



SW6

No.9



No.0



No.10



No.3



No.4



Dip switch



Dip switch

Appearances

Remote



controller

Indoor controller

4-3/4o4-3/4o5/85-1/8o4-3/4o3/4



Connector for LOSSNAY interlocked

Differences with OC001 which is a basic service manual.

OC194-3

FEATURES

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 installa-

tion.

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 com-

puters 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 micro-

processor 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 self-

diagnostic 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.

Models Cooling capacity SEER

PL12FK112,300 Btu/h 10.4

PL18FK2118,400 Btu/h 10.2

PL24FK2123,600 Btu/h 10.0

PL30FK2131,000 Btu/h 10.4

PL36FK3136,100 Btu/h 10.0

PL42FK2142,500 Btu/h 10.0

Indoor Unit

Remote controller

FILTER

CHECK MODE

TEST RUN

TIMER OFF TIMER



CHECK SETTEMP.

CLOCK AUTO AUTO



START STOP

SWING

FAN



SPEED AUTO



RETURN

FAN

OC194-4

3PART NAMES AND FUNCTIONS

Remote controller operation buttons

TIMER OFF TIMER



CHECK SETTEMP.

DRY COOL



FAN

CLOCK AUTO AUTO



START STOP

MODE TIMER ON/OFF CLOCK/TIMER FAN SPEED AIR DISCHARGE FILTER

CHECK

TEST RUN

AIR SWEEP

SETTEMP. TIMER SET

FAN



SPEED

SWING

REMOTE CONTROLLER



PAR-JC240KUS

AUTO



RETURN

FILTER button

This resets the filter service indica-

tion display.

TIMER ON/OFF button

This switches between continuous

operation and the timer operation.

SET TEMPERATURE

button

This sets the room temperature.

The temperature setting can be per-

formed in 2-F units.

Setting range :

Cooling 65-F to 87-F

CLOCK/TIMER button

This sets or switches the current

time,start time and stop time.

FAN SPEED button

This sets the fan speed.

AIR DISCHARGE

button

This adjusts the vertical angle of the

ventilation.

ON/OFF button

This switches between the opera-

tion and stop modes each time it is

press. The lamp on this button

lights during operation.

OPERATION MODE

button

Press this button to switch the cool-

ing, electronic dry (Dehumidify),fan

modes.

Remote controller

Once the controls are set, the same operation mode can be repeated by simply pressing the

ON / OFF button.

CHECK-TEST RUN button

Only press this button to perform an

inspection check or test operation.

Do not use it for normal operation.

AIR SWEEP button

This switches the horizontal fan motion

(Swing louver) ON and OFF.

(This button does not operate in this

models.)

OC194-5

TIMER OFF TIMER



CHECK SETTEMP.

DRY COOL



FAN

CLOCK AUTO AUTO



START STOP

MODE TIMER ON/OFF CLOCK/TIMER FAN SPEED AIR DISCHARGE FILTER

CHECK

TEST RUN

AIR SWEEP

SETTEMP. TIMER SET

FAN



SPEED

SWING

REMOTE CONTROLLER



PAR-JC240KUS

AUTO



RETURN

Operation lamp

This lamp lights during operation,

goes off when the unit stops and

flashes when a malfunction occurs.

CENTRALLY

CONTROLLED display

This indicates when the unit is con-

trolled 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.

display

This lamp lights when electricity is

supplied to the unit.

display

This displays the selected setting

temperature.

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.

display

The temperature of the return air is

displayed during operation.The dis-

play range is 47°F to 97°F. The dis-

play flashes 47°F when the actual

temperature is less than 47°F and

flashes 97°F when the actual tem-

perature is greater than 97°F.

In this display example on the bottom left, a condi-

tion where all display lamps light is shown for

explanation purposes although this differs from

actual operation.

display

This display lights in the check mode

or when a test operation is per-

formed.

CHECK MODE

TEST RUN

display

This lamp lights when the filter needs

to be cleaned.

FAN SPEED display

The selected fan speed is displayed.

Caution

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

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

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

FILTER

Remote controller display

AIR DISCHARGE display

This displays the air direction.

OC194-6

4SPECIFICATIONS



Capacity



Power Consumption



EER



SEER



INDOOR UNIT MODELS



External finish



Power supply



Max.fuse size (time delay)



Min.ampacity



Fan motor



Airflow Hi-Lo



Moisture removal



Sound level Hi-Lo



Cond. drain pipe O.D.



Dimensions



Weight





External finish





Dimensions





Weight



OUTDOOR UNIT MODELS



External finish



Sound level



Power supply



Max. fuse size (time delay)



Min. ampacity



Fan motor



Compressor



Crankcase heater



Refrigerant control



Dimensions



Weight



REMOTE CONTROLLER



Control voltage (by bulit-in.transformer)



REFRIGERANT PIPING



Pipe size



Connection method



Between the indoor



& outdoor units



Dry



Wet



Model (type)



Liquid



Gas



Indoors



Outdoors



Height difference



Piping length

Btu/h



V,phase,Hz



F.L.A.



CFM



CFM



Pints/h



in.



in.



in.



in.



in.



in.



in.



dB(A)



V, phase, Hz



F.L.A.



R.L.A.



L.R.A.



A(W)



in.



in.



in.



in.



in.



Model



PL18FK21

18,400



1.88



9.8



10.2



PL18FK21



Galvanized sheets with gray heat insulation



115 , 1 , 60



2.0



0.85



680-460



650-440



5.3



45-38



1-1/4



32-1/4



32-1/4



10-1/8



Munsell 0.70Y 8.59/0.97



36-5/8



36-5/8



2-3/8



PU18EK1



Munsell 5Y 7/1



208-230, 1, 60



0.75



RH247NAB



0.11/0.12 (23/28)



Capillary tube



34-1/4



11-5/8



33-1/2



154



With indoor unit



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



Not supplied (optional parts)



3/8



5/8



Flared



Flared



130



130

PL24FK21

23,600



2.48



9.5



10.0



PL24FK21







2.0



1.1



750-550



660-480



6.8



47-39



1-1/4



PU24EK1



0.65+0.65



NH33NBD



11.5



0.16/0.17 (33/39)



49-9/16



207



3/8



5/8



164



164

Item

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



Operating range

Indoor intake air temperature

95°FDB,71°FWB



67°FDB,57°FWB



Outdoor intake air temperature

115°FDB



0°FDB*



Cooling



Maximum



Minimum



*In case of the wind baffle is installed.



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



PL12FK1

112,300



1.23



10.0



10.4



PL12FK1



2.0



0.75



570-540



420-400



3.8



43-35



1-1/4



PU12EK



0.65



RH167NAB



8.9



0.11/0.12 (23/28)



25-5/8



105



3/8



5/8



130



130

INDOOR



GRILLE

MODELS : PL12FK1, PL18/24FK21

OC194-7



Capacity



Power Consumption



EER



SEER



INDOOR UNIT MODELS



External finish



Power supply



Max.fuse size (time delay)



Min.ampacity



Fan motor



Airflow Hi-Lo



Moisture removal



Sound level Hi-Lo



Cond. drain pipe O.D.



Dimensions



Weight





External finish





Dimensions





Weight



OUTDOOR UNIT MODELS



External finish



Sound level



Power supply



Max. fuse size (time delay)



Min. ampacity



Fan motor



Compressor



Crankcase heater



Refrigerant control



Dimensions



Weight



REMOTE CONTROLLER



Control voltage (by bulit-in.transformer)



REFRIGERANT PIPING



Pipe size



Connection method



Between the indoor



& outdoor units



Dry



Wet



Model (type)



Liquid



Gas



Indoors



Outdoors



Height difference



Piping length

Btu/h



V,phase,Hz



F.L.A.



CFM



CFM



Pints/h



in.



in.



in.



in.



in.



in.



in.



dB(A)



V, phase, Hz



F.L.A.



R.L.A.



L.R.A.



A(W)



in.



in.



in.



in.



in.



Model



PL36FK31

36,100



3.76



9.6



10.0



PL36FK31



Galvanized sheets with gray heat insulation



115 , 1 , 60



2.0



1.0+1.0



1,170-850



1,090-790



10.9



49-41



1-1/4



52-3/4



32-1/4



10-1/8



Munsell 0.70Y 8.59/0.97



57-1/8



36-5/8



2-3/8



PU36EK1



Munsell 5Y 7/1



208-230, 1, 60



0.75+0.75



NH47NAD



17.5



0.16/0.17 (33/39)



Capillary tube



38-3/16



13-9/16



49-9/19



154



With indoor unit



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



Not supplied (optional parts)



1/2



3/4



Flared



Flared



164



164

PL42FK21

42,500



4.40



9.7



10.0



PL42FK21







3.0



1.2+1.2



1,270-920



1,200-870



12.6



49-42



1-1/4



101



PU42EK2



0.8+0.8



NH569NXA



105



0.16/0.17 (33/39)



38-3/16



13-9/16



260



1/2



3/4



164



164

Item

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



Operating range

Indoor intake air temperature

95°FDB,71°FWB



67°FDB,57°FWB



Outdoor intake air temperature

115°FDB



0°FDB*



Cooling



Maximum



Minimum



*In case of the wind baffle is installed.



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



PL30FK21

31,000



3.10



10.0



10.4



PL30FK21



2.0



1.0+1.0



1,170-850



1,090-790



9.6



49-41



1-1/4



PU30EK1



0.65-0.65



NH41NAD



14.0



0.16/0.17 (33/39)



34-1/4



11-5/8



208



1/2



3/4



164



164

INDOOR



GRILLE

MODELS : PL30FK21, PL36FK31, PL42FK21

OC194-8

5DATA

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

1. PERFORMANCE DATA

1) COOLING CAPACITY

Models

Indoor air Outdoor intake air DB temperature(°F)

PL12FK1



14.3



13.2



12.1



21.2



19.8



18.5



27.4



25.6



23.8



35..8



33.2



30.9



41.7



38.9



36.4



49.6



46.1



42.8

SHC



7.1



8.4



9.3



14.6



16.0



17.2



17.8



19.5



20.5



19.4



22.6



25.1



27.1



29.6



32.0



32.3



35.0



37.2

TPC



1.06



1.03



0.99



1.64



1.60



1.56



2.15



2.10



2.05



2.65



2.59



2.53



3.22



3.15



3.08



3.95



3.88



3.80



13.8



12.8



11.8



20.6



19.1



17.9



26.5



24.7



22.9



34.5



31.9



29.8



40.3



37.5



35.1



47.8



44.3



41.1

SHC



6.9



8.2



9.1



13.6



15.1



16.1



16.7



18.0



19.0



19.1



22.1



24.6



25.4



28.1



30.2



30.0



32.8



34.9

TPC



1.16



1.12



1.08



1.77



1.73



1.70



2.36



2.30



2.24



2.88



2.81



2.75



3.52



3.44



3.36



4.25



4.10



4.00



13.2



12.3



11.4



19.6



18.4



17.1



25.3



23.6



22.1



33.5



31.0



29.0



38.6



36.1



33.5



45.8



42.5



39.3

SHC



6.8



8.0



9.0



12.5



14.0



15.0



15.2



16.8



18.1



18.8



21.6



23.9



23.5



26.4



28.1



28.0



30.6



32.6

TPC



1.27



1.23



1.18



1.93



1.88



1.83



2.57



2.48



2.43



3.17



3.10



3.02



3.85



3.76



3.67



4.60



4.40



4.28



12.6



11.8



11.1



18.7



17.5



16.3



24.0



22.6



21.0



31.4



28.8



26.9



36.8



34.5



31.9



43.5



40.2



37.1

SHC



6.6



7.8



8.8



11.6



12.8



13.9



13.8



15.4



16.6



18.5



20.9



23.1



22.1



24.5



26.2



25.7



28.2



29.7

TPC



1.38



1.34



1.29



2.10



2.03



1.98



2.77



2.69



2.62



3.44



3.35



3.28



4.22



4.10



4.00



4.85



4.65



4.45



11.9



11.2



10.4



17.9



16.5



15.3



22.8



21.4



20.0



29.6



27.4



25.6



34.9



32.5



30.2



41.2



37.7



34.8

SHC



6.4



7.6



8.4



10.6



11.7



12.7



12.5



13.9



15.2



18.0



20.4



22.5



20.2



22.4



24.2



23.1



25.3



27.1

TPC



1.50



1.46



1.40



2.23



2.17



2.12



3.00



2.90



2.81



3.76



3.63



3.55



4.56



4.42



4.30



5.20



4.95



4.75

IWB



(°F)



75 85 95 105 115

420



0.27

Airflow



(CFM)



B.F

PL18FK21650



0.17

PL24FK21660



0.13

PL36FK311090



0.15

PL42FK211200



0.14

PL30FK211090



0.15

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.

MODEL Refrigerant piping length (one way)

1.0



1.0



1.0



1.0



1.0

25ft (std)

0.992



0.981



0.981



0.981



0.975

40ft

0.983



0.968



0.968



0.968



0.955

55ft

0.978



0.952



0.952



0.952



0.935

70ft

0.966



0.940



0.940



0.940



0.918

85ft

0.959



0.925



0.925



0.925



0.900

100ft

0.950



0.913



0.913



0.913



0.884

115ft

0.945



0.900



0.900



0.900



0.869

130ft



0.886



0.886



0.886



0.855

150ft



0.874



0.874



0.874



0.840

164ft

PL12FK1



PL18FK21





PL24FK21



PL30FK21



PL36FK31

PL42FK21

2) COOLING CAPACITY CORRECTIONS

OC194-9

2. PERFORMANCE CURVE

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

PL12FK1COOLING CAPACITY PL18FK21COOLING CAPACITY

Total power consumption (kW) Total capacity (x103Btu/h)

Outdoor intake air DB temperature ( F)

2.5

2.0

1.5

1.0

SHF=0.76

32 35

45 55

65(67)

75 85 95 105 115

Indoor intake air WB temperature ( F)

3.0

Total power consumption (kW) Total capacity (x103Btu/h)

Outdoor intake air DB temperature ( F)

1.4

1.2

1.0

0.8

SHF=0.77

032354555

65(67)

75 85 95 105 115

Indoor intake air WB temperature ( F)

1.6

OC194-10

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

PL24FK21COOLING CAPACITY PL30FK21COOLING CAPACITY

Total power consumption (kW) Total capacity (x103Btu/h)

Outdoor intake air DB temperature ( F)

4.0

3.5

3.0

2.5

SHF=0.76

32 35

45 55

65(67)

75 85 95 105 115

Indoor intake air WB temperature ( F)

Total power consumption (kW) Total capacity (x103Btu/h)

Outdoor intake air DB temperature ( F)

3.0

2.5

2.0

1.5

SHF=0.71

32 35

45 55

65(67)

75 85 95 105 115

Indoor intake air WB temperature ( F)

3.5

PL36FK31COOLING CAPACITY PL42FK21COOLING CAPACITY

Total power consumption (kW) Total capacity (x103Btu/h)

Outdoor intake air DB temperature ( F)

2.0

1.5 63

SHF=0.72

32 35

45 55

65(67)

75 85 95 105 115

Indoor intake air WB temperature ( F)

Total power consumption (kW) Total capacity (x103Btu/h)

Outdoor intake air DB temperature ( F)

4.0

3.5

3.0

2.5

SHF=0.73

32 35

45 55

65(67)

75 85 95 105 115

Indoor intake air WB temperature ( F)

4.5

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