Mitsubishi Electric PL18FK2 Building instructions

SERVICE & PARTS MANUAL
1 Series PL]Ceiling Cassettes
~0d-l~ PL18FK2/PU18EK,PU18EK-I
PL24FK2/PU24EK,PU24EK-I
PL30FK2/PU30EK,PU30EK-I
PL36FK2/PU36EK,PU36EK-i
PL42FK21PU42EK2,PU42EK2-I
-1 Ceiling Cassettes
PLL12FK/PUL12EKJPUL12EK-I
PLLl8FK/PUL18EK,PULl8EK-I
PLL24FK/PUL24EK,PUL24EK-I
Ceiling Suspended
I Series PC L 1 Ceiling Suspended
WKI Wall Mounted
PKI8EK/PU18EK,PUI8EK-I
PK24EK/PU24EK,PU24EK-l
PK30EK/PU30EK,PU30EK-I
Wall Mounted
PKLI2EK/PUL12EK,PULl2EK-I
PKLI8EK/PUL18EK,PULl8EK-I
PKL24EK/PUL24EK,PUL24EK-I
@ The Slim Line.
fof PU18EK I and
PUL18EK-I

CONTENTS
REFRIGERANTSYSTEM DIAGRAM .......................................... 47
DWlRlNGDIAGRAM .............................................................. 48
QPERATION FLOW-CHART
................................................. ... 57
MICROPROCESSOR CONTROL ............................................... 60
TROUBLE SHOOTING
.......................................................... 72
SYSTEM CONTROL ............................................................. 81
MTIMEROPERATION WITH OPTIONAL PARTS
.............................. 86
m4-WAY AIR FLOW SYSTEM (PL/PLL
series) ................................ 88
/@ DISASSEMBLY PROCEDURE .................................................. 95
OPTIONAL PARTS .............................................................. 109
STANDARD PARTS
............................................................ 110

CHANGE POINTS
1. Outdoorcontroller boardchangedtothe sametype asthat of heat pumpunit.
2. Withthe changeof outdoor controller board,transformerchanged.
3. Contactorchangedfrom VC-2OF toS-U12. (for PU18EK-1and PUL18EK-1)
4. Modelnameof "PLL" haschangedto "PL", specificationsare identical.
5. Modelnameof "PCL" haschangedto "PC", specificationsare identical.
6. Modelnameof "PKL" haschangedto "PK", specificationsare identical.

FEATURES
1 Series pLI Ceiling Cassettes
Indoor unit
PL18FK2
Remote controller Outdoor unit
PU 1BEK, PU18EK-1
(MODEL) (COOLING CAPACITY) (SEER)
PL18FK2
18,400 Btu/h 10.2
PL24FK2
23,600 Btu/h 10.0
PL30FK2
31,000 Btu/h 10.4
PL36FK2
36,100 Btu/h 10.0
PL42FK2
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 installa-
tion.
3. REDI-CHARGED REFRIGERANT SYSTEM
When refrigeranttubing is 1OOft or less,it is unnecessaryto charge additional refrigerant. This can contribute to enhance
installation guality and reduce installationtime.
4. STABLE COOLING EVEN AT OUTDOOR TEMPERATURES AS LOW AS 0°F MAKES YEAR-
ROUND AIR-CONDITIONING POSSIBLE
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 cooli
computers and areas subject to strong sunlight. Optional wind baf
5. ADVANCED MICROPROCESSOR CONTROL
(1) Easy to use Microprocessor
1) Ultra-Thin Remote Controller
The streamlined, square controller is designed to
blend with any kindof interior and the adopt~onof
a sophisticated microprocessor allows you to
easily carry out a wide range of operations.
2) Attractive Liquid Crystal Display (LCD)
Unit operation mode, set temperature, room
temperature, timer setting, fan speed, and air
flow direction are displayedof the remote control-
ler by 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 you set. Once the
timer is set, the remaining time is shown by the
LCD.
8 needs, such as rooms with many office machines or
must be installed.
POWER- (ON/OFF)
MODE SELECT FAN COOLiDRY
SET
TEMPERATURE WARMER
TIMER MODE HOURS
1 LOW HIGH / I FAN SPEED LOW!HIGH 1
AIR UPIDOWN
STOP 1
TEST WN I r-- CHECK
TEST RUN

4) Self-Diagnostic Feature Indicates Faults Instantly
Inthe 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 pressedtwice, the unit stops operating and the check mode is initiated. The cause of the most
recent problem stored in the memory is displayedon 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-polarTwo-Wire Remote Controller Cables
The non-polar, two-wire type remote controller cable isslim, installation issimpleand troublefree. Remotecontroller wire
can be extended up to
550 yards.
6. INNOVATIVE SYSTEM CONTROL BY MICROPROCESSORS
The most significant feature of the series PL is the advancedmicroprocessorsystem control. Behindthe development ofthis
system is the recent world-wide trend inthe air conditioning of larger buildings, away from centralizedduct systems infavor
of a large number of individual split type units. There are a number of reasons for this: first, costly troublesome duct
installation is eliminated: second, the overall air conditioning balance is excellent; and third, operation cost is low, since
flexible control of each unit is possible. This system control was developed exclusively by Mitsubishi in the light of this
demand. Microprocessor control makes possible individual control, group control, control using two remote controllers,
remote on/off control and individual control without troublesome modifications to the equipment.
1) Individual Control by Gathering Remote Controllers
A Series PL unit is installed ineach room, and the remote controllers are gatheredtogether in a separate location, where
each unit is controlled individually.
Each remote controller is connected to its indoor unit by non-polar 2-wire cableto eliminate the possibility of miswiring.
Separation can be as much as
550 yards, making this type of control extremely easy to implement.
Thermistors inthe indoor unit maintain each room at its own individually set temperature.
This control system is excellentfor schoolsor kindergardens,where controls should be kept out of the reachof the pupils.
2) Group Control by a Single Remote Controller
Inan application requring a number of air conditioner units in a large area on a singlefloor, upto
50 Series PL units can
be centrally controlled using a single remote controller. The remote controller controls Power ON-OFF, set temperature,
fan speed, ON-OFF timer, and auto vane position of all units of the group. Obviously, if all the unitsstarted simultaneous-
ly, the surge currentwould be unacceptably high. Thereforethe microprocessor boardof each indoor unit has a 8-toggle
DIP switch that can be programmed to give sequential starting with up to
50 seconds delay. When the switch of the
remote controller is pressed, master unit comes on immediately, followed by the other units in the programmed order.
Thereafter the thermistor in each indoor unit controls compressor operation to keep the room at the set temperature.
The remote controller is connected to indoor units by non-polar 2-wire cable. Total cable length can be as muchas
550
yards. This system can be applied to the air conditioning of large offices or conference rooms, supermarkets, etc.
3) Control UsingTwo Remote Controllers
Two remote controllers can be used to control either one unit or several units in group control. This makes it possible
to control units with ease either from a distance or at close range. Units operate according to the last command from
either remote controller.
4) Both Remote
ON/OFF Control and Individual Control
All units can be turned on and off simultaneously using the remote ON/OFF switch, and also individual units can be
controlled from the remote controllers.
This system is well suited to buildings having a large number of rooms. In offices, for example, all units can be started
together to coolthe premisesbeforeworkers arrive, operatedas necessaryby individual remote controllers during the day,
and stopped together at the end of business.

a Individual Control by
Gathering Remote Con-
trollers.
@Group Control
by a Single
Remote Controller.
I (No 1) 1 (No 2) IN0 3) INo.50) I
Remote
controllers
OControl UsingTwo
Remote Controllers.
I 11 Indoor unlt
A built-in thermistor in each indoor
unit controls its cooling operation
to maintain desired room tempera-
ture. Non-polar, two wire connec-
tion cables can be extended up to
550 yards.
Each unit starts in sequence at one
second intervals, and a built-in
thermistor in each indoor unit con-
trols its cooling operation to main-
tain desired room temperature.
Two remotecontrollerscan beused
to control either one unit or several
units in group control. This makes
it possible to control unit with ease
either from a distance or at close
range. Units operate according to
the latest commands from either
remote controller.
@Both Remote ON/OFF
Control and Individual
Control.
I
Relays and remote ON-OFF switch
are not supplied.
Timer Control is also available.
7. DRAIN PUMP FOR EASY PIPE CONNECTION
This mechanism, with itscapacity to raise drain water about 20" above the ceilingline, is convenientfor removingwater and
avoiding piping contact with beams, etc.
8. FRESH AIR INTAKE AND BRANCH DUCTING ARE AVAILABLE (oti-site work)
9. HIGH RELIABILITY AND EASY SERVICING
Inaddition to the self-diagnostic function, units are also equippedwith a 3-minutetime delay mechanism (cooling),an auto
restart function, an emergency operationfunction, a test run switch, etc., to assure high reliability and easy servicing.
10. FOUR-WAY PIPING ACCESS MAKES INST-
ALLATION LAYOUT EASY
Pipingon the outdoor unit may be connectedfrom either
of four directions: front, rear, side or beneath the base.
This easy-access design makes it possible to install a
number of units in a compact arrangement at a single
site. The outdoor unit allowsfor unheard-offlexibility in
determining a piping layout, thus greatly simplifying
installation.
11. FRONT-ACCESS FACILITATES MAINTENANCE
The outdoor unit has been designed with a frontaccess
service panel that allows easy access to all maintenance
points, regardlessof the installationlayout. What'smore,
this front panel may be removed by loosening only two
screws. It all adds up to greatly simplified maintenance
work.
12.NITROGEN GAS IS CHARGED TO INDOOR UNIT
The indoor units of this series are chargedwith nitrogengas (N,) insteadof R-22 beforeshipmentfrom the factory.

Ceiling Suspended
r-~
-- . - >--
Microprocessor
Indoor Unit Remote controller
PU24EK. PU24EK-I
Outdoor Unit
(Cooling Capacity> (
24,000 Btu/h
31,000 Btu/h
36,500 Btu/h
42,500 Btu/h
1 . ADVANCED MICROPROCESSOR CONTROL (Please refer to page 2-3 for the detail.)
(1) Easy to use Microprocessorremote controller
1
) Ultra-Thin Remote Controller
2) Attractive Liquid Crystal Display (LCD)
3) Convenient 24-Hour ON-OFF Timer
4) Self-Diagnistic Feature Indicates Faults Instantly
5) Useful Memory Featurefor Storing Instructions
(2)Non-polar Two-Wire Remote Controller Cables
2. INNOVATIVE SYSTEM CONTROL BY MICROPROCESSORS (Please refer to page 3 for the detail.)
1) Group Control by a Single Remote Controller
2) Control UsingTwo Remote ~ontrollkrs
3) Both Remote ON/OFF Control and lndividual Control
4) Individual Control by Gathering Remote Controllers
3. REDI-CHARGED REFRIGERANTSYSTEM
When refrigeranttubing is 100ft or less, it is unnecessary to charge additional refrigerant. This can contributeto enhance
installationquality and reduce installationtime.
4. MAXIMUM COMFORT AIR CONDITIONING
(1) Indoor Unit ChangeableAir Outlet
PC-EK series have changeableair outlet.
Downward air flow can be obtained at an
angle up to 30". Upward air flow at angle of
10" is able to stretchcool air in a room. This
function enables comfortable air distribution.
(2) Swing Flow Louvers
The Swing Flow Louvers automaticallychange
the air flow direction for desirableair distribu-
tion.

(3) Fresh-Air Intake
The PC-EK series also hasfresh air intake, providing morecomfortable, healthful
air conditioning through better ventilation. The rear panel has a knock-out for
the intake of fresh air.
STABLE COOLING EVEN AT OUTDOOR TEMPERATURES AS LOW
AS
0°F MAKES YEAR-ROUND AIR-CONDITIONING POSSIBLE
(Pleaserefer to page 2 for the detail.)
DRAIN PUMP FOR EASY PIPE CONNECTION (Option)
This mechanism, with its capacity to raise drainwater 20" above the ceiling line, is convenient for removing water and
avoiding piping contact with beams, etc.
Note
: This can not be mounted inthe unit.
SLIM, COMPACT AND SPACE SAVING
(1 ) Space Saving Design
Because the PC-EK series indoor units are des~gnedto be suspended from the ceiling, valuable floor space and wall
surfaces are not used. The unit is only 7-11/16" high and 50-7/16" wide (PC24EK).
The outdoor units are also slim line, with a depth dimension of only
1 1 -5/8" (PU24EK).
(2) Flush-To-The-Wall Installation
Sincethe units inthe PC-EK series are installedflush against the back wall, connection pipesare hidden. This gives the
room a touch of sleek sophistication.
8. EASY INSTALLATION
Installation is simple, thanks to the easy-connection refrigerant lines. As all outdoor units are charged for 100' of line set
and tested at the factory, there's no need for special on-site work.
The indoor unit is easy to mount and requires only a minimum of wiring, saving your time, labor, and money.
9. HIGH RELIABILITY AND EASY SERVICING
In addition to the self-diagnostic function, units are also equipped with a 3-minute tie delay mechanism, an auto restart
function, an emergency operation function, a test run switch, etc., to assure high reliability and easy servicing.
10.FOUR-WAY PIPING ACCESS MAKES INSTALLATION LAYOUT EASY
(Pleaserefer to page 4 for the detail.)
11.FRONT-ACCESS FACILITATES MAINTENANCE
(Pleaserefer to page 4 for the detail.)
12.ECONOMICAL AND EFFICIENT OPERATION
Mitsubishi exclusive LCD indicators show the temperature selected and the current room temperature. This system
ensures full protection against overcooling.
@TheMitsubishi Electric split-type air-to-air PC modelsfeature highly precisecompressorswith large-capacity heat exchan-
gers for efficient operation.
13.NlTROGEN GAS IS CHARGED TO INDOOR UNIT
Indoor units of this series are charged with nitrogen gas (N,) insteadof R-22 before shipment from the factory.

BK] Wall Mounted
PK24EK
Indoor unit
*umua*arsnr
-
M~croprocessor
remote controller
PU24EK. PU24EK-1
Outdoor unlt
Models
PK18EK
PK24EK
PKBOEK
Cooling capacity SEER
18,000 Btu/h 11.0
24,000 Btu/h 10.3
28,800 Btu/h 10.0
1. ADVANCED MICROPROCESSOR CONTROL (Please refer to page 2-3 for detail.)
(1 ) Ultra-Thin, MultifunctionLCD Remote Controller
(2) Non-polarTwo-Wire Remote Controller Cables
2. INNOVATIVE SYSTEM CONTROL BY MICROPROCESSORS (Please refer to page 3 for the detail.)
(1) Gpup control by a Single Remote Controller
(2) Control UsingTwo Remote Controllers
(3) Both RemoteON-OFF Control and Individual Conbol
(4) Individual Control by Gathering Remote Controllers
3. REDI-CHARGED REFRIGERANT SYSTEM
When refrigerant tubing is 100ft or less, it is unnecessary to charge additional refrigerant. This can contribute to enhance
installation quality and reuuce installation time.
4. MAXIMUM COMFORT AIR CONDITIONING
1 ) Swing Flow Louvers
Swing Flow Louvers automatically change the
airflow direction for uniform air distribution.
Swng flow louvers
2) Guide Vanes
Guide Vanes also change the airflow direction vertically.
(During Cooling)
5. STABLE COOLING EVENAT OUTDOOR TEMPERATURES AS LOW AS 0°F MAKES YEAR-ROUND
AIR-CONDITIONING POSSIBLE
(Please refer to page 2 for the detail.)

6. INSIDE-THE-UNITPIPE CONNECTION
Pipe connections for the indoor unit can be done inside the unit itself in order to make the connection work easier and
give a beautiful finish of the installation.
7. SLIM, COMPACT AND SPACE SAVING
1 ) Space Saving Design
Only 8-1 1/16 inches deep and 14-3/16 inches high, the indoor unit is styled long and thin for mountingjust below the
ceiling. No valuable floor space is required for installation.
The outdoor units are also slim line with a depth dimension of only 11-5/8 inches (PU24EK).
8. EASY INSTALLATION
Installation is simple, thanks tothe easy-connection refrigerant lines. As all units are charged for 100' of line set and tested
at the factory, there's no need for special on-site work.
9. HIGH RELIABILITY AND EASY SERVICING
In addition to the self-diagnostic function, units are also equipped with a 3-minute time delay mechanism, an auto restart
function, an emergency operation function, a test run switch, etc., to assure high reliability and easy servicing.
10.FOUR-WAY PIPING ACCESS MAKES INSTALLATION LAYOUT EASY
(Pleaserefer to page 4 for the detail.)
11.FRONT-ACCESS FAClLITATES MAINTENANCE
(Please refer to page 4 for the detail.)
12.ECONIMICALAND EFFICIENT OPERATION
Mitsubishi exclusive LCD indicators show the temperature selectedandthe current roomtemperature. This systemensures
full protection against overcooling.
*The Mitsubishi Electric split-type air-to-air PK modelsfeature highly precise compressorswith large-capacity heat exchan-
gers for efficient operation.
13.NITROGEN GAS IS CHARGED TO INDOOR UNIT
Indoor units of this series are charged with nitrogen gas (N,) instead of R-22 before shipment from the factory.

Series Ceiling Cassettes
PLL24FK
lndoor Unit
(MODELS) (COOLING CAPACITY)
PLLIZFK 12,300 Btu/h
PLL18FK 18,400 Btu/h
PLL24FK 23,600 Btu/h
I Series PC L 1 Ceiling Suspended
PCL24EK
lndoor Unit
(MODEL) (COOLING CAPACITY)
PCL24EK 24,000 Btu/h
1 Series PKL 1 Wall Mounted
*"?s,s3.-
- -- -
-
M~croprocessor
Remote controller
(SEER)
104
10 2
10 0
Microprocessor
Remote controller
PK124EK
lndoor Unit
*-- I
I - ,
Microprocessor
Remote controller
(MODELS) (COOLING CAPACITY) (SEER:
PKLlZEK 12,000 Btu/h 10.7
PKL18EK 18,000 Btulh 11.O
PKL24EK 24,000 Btu/h 10.3
PUL24EK.PUL24EK-1
Outdoor Unit
PU124EK.PUL24EK-1
Outdoor Unit
PUL24EK. PUL24EK-1
Outdoor Unlt
COOLING OPERATION UNDER OUTDOOR TEMPERATURES AS LOW AS OF
With conventional air conditioners in cooling mode, the condensing pressure enough to stop the unit when the outdoor air
temp. is very low. However, in PLL, PCL, and PKL series, controlling speed of the outdoor fan makes it possible to keep
the condensing pressure at the proper level. This results the cooling operation under extremely low outdoor temp. as
0°F.
ADVANCED MICROPROCESSOR CONTROL (Pleaserefer to page 2-3 for the detail.)
INNOVATIVE SYSTEM CONTROL BY MICROPROCESSOR (Pleaserefer to page 3 for the detail.)
REDI-CHARGED REFRIGERANT SYSTEM (Pleaserefer to page 2.)
MAXIMUM COMFORT AIR CONDITIONING (PCLIPKL series) (Pleaserefer to page 5 - 6.)
DRAIN PUMP FOR EASY PIPE CONNECTION (Please refer to page 4.)
It is equipped for PLLonly, and option for PCL.
EASY INSTALLATION (PCL/PKL series) (Please refer to page 6.)
HIGH RELIABILITY AND EASY SERVICING (Pleaserefer to page 6.)
ECONOMICAL AND EFFICIENT OPERATION (PCL/PKL series) (Pleaserefer to page 6.)
10.NlTROGEN GAS IS CHARGED TO INDOOR UNIT (PCL/PKL) (Pleaserefer to page 4.)

1
Operating range
SPECIFICATIONS
MODELS : PL18/24FK,PLLl2/18/24FK
Model
Item
PLLIPFK
12,300
1.23
10.0
10.4
PLLl2FK
Capacity
* 1 Btu/h
Cooling
PL18FK
PLL18FK
18.400
1.88
9.8
10.2
PL18FK2,PLL18FK
"WITH WIND BAFFLE INSTALLED
10
lndoor intake air temperature
95"FDB, 71~FWB
67~FDB.57'FWB
Maximum
Miminum
PL24FK
PLL24FK
23,600
2.48
9.5
10.0
PL24FK2,PLL24FK
Power consumption
Galvanizedsheets with gray heat insulaiton
115,1,60
* 1 kW
15
2.0
0.75
I 570-540
420-400
3.8
43-35
1-1/4
Outdoor intake air temperature
115"FDB
*PL 0"FDB
15
2.0
0.85
680-460
650-440
5.3
45-38
1-1/4
EER
* 1
SEER
INDOOR UNIT MODEL
Externalfinish
Power supply V,phase,Hz
Max. fuse size (time delay) A
Min. ampacity A
Fan motor F.L.A.
Airflow Hi-Lo
I Dn/ CFM
Wet CFM
Moisture removal Pints/h
Sound level Hi-Lo dm)
Cond. drain connection OD ~n.
"PLL. 0"FDB
15
2.0
1.1
750-550
660-480
6.8
47-39
1-1/4
Dimensions 32-1/4
32-1
/4
10-1/8
W ~n.
D ~n.
H in. 60 64
Weight Ib. 64
g Y
O 2
0 a
Z a
Munsell 0.70Y 8.59/0.97
36-51'8
36-5/8
2-3/8
22
PUL12EK.PUL12EK-1
1 PUL~~EK, PU 18~~. PU PULI~EK-1 1 ~EK-I
External finish
PU24EK. PU24EK~t
PUU4EK.PUU4EK-1
Dimensions
OUTDOOR UNIT MODEL
External finish
Sound level dB(A)
Power supply V,phase,Hz
Max. fuse size (time delay) A
Min. ampacity A
Fan motor F.L.A.
W in.
D in.
H in.
Munsell 5Y 7/1
Compressor
Weight
50
Model (type) R.L.A.
L.R.A.
53
Crankcase heater A(W)
Refrigerantcontrol
55
208-230.1.60
Dimensions
15
11
0.65
RH167NAB
8.9
29
0.11/0.12(23/28)
W ~n.
D in.
H in.
20
16
0.75
RH247NAB
12
37
0.11/O. 12 (23/28)
Weight Ib.
REMOTE CONTROLLER
Control voltage (by built-in transformer)
REFRIGERANT PIPING
20
16
0.65
+ 0.65
NH33NBD
11.5
54
0.16/0.17 (33/39)
Capillan/tube
34-1/4
11-5/8
Pipe size
Connection method
Between the indoor
& outdoor units
25-5/8
Liquid in.
Gas in.
Indoors
Outdoors
Height difference
ft
Piping length ft
NOTE : * 1. Rating conditions ---- indoor : 80FDB. 67~FWB
33-1/2 49-9/ 16
105 154 207
With indoor unit
Indoor unit
- remote controller : DC12V. Indoor unit - outdoor unit : DC12V
Not supplied (optional parts)
3/8 3/8 3/8
5/8- 5/8 5/8
Flared
Flared
130 130 164
130
outdoor
: 95"FDB. 75"FWB 130 164

MODELS : PL30/36/42FK(2)
Model
Item
-
PWOFK
31,000
3.10
10.0
10.4
PL30FK2
Capacity
Moisture removal (Pints/h)
Fan motor F.L.A.
1 0.65 + 0.65
* 1 Btu/h
9.6
49-41
1-11'4
Sound level Hi-Lo
Cond. drain connection OD
Dimensions
compressor
PW6FK
36,100
3.76
9.6
10.0
PL36FK2
dw)
in.
W ~n.
D in.
H in.
0.75
+ 0.75
Pipe slze
Operating range
PL42FK2
42,500
4.40
9.7
10.0
PL42FK2
Power consumption
Galvanizedsheets with gray heat insulaiton
115,1,60
10.9
49-41
1-1/4
0.8
+ 0.8
ModeKtype) R.L.A.
L.R.A.
Connection method
Betweenthe indoor
& outdoor units
* 1 kW
15
2.0
1.O
+ 1.O
1,170-850
1,090-790 12.6
49-42
1-1/4
52-3/4
32-1
/4
10-1/8
Weight Ib.
Liquid in.
I 1/2
"WITH WIND BAFFLE INSTALLED
99
Sr
0 ='
0 a
zu
-
NH41NAD
14.0
73
Crankcase heater A(W)
Refrigerantcontrol
NOTES
: * 1. Rating conditions -- indoor : 8OFDB. 67 FWB outdoor : 95 FDB, 75 FWB
Indoors
Outdoors
Height difference
fl
Piping length ft
15
2.0
1.0+ 1.0
1,170-850
1,090-790
EER
* 1
SEER
INDOOR UNIT MODELS
External finish
Power supply V,phase, Hz
Max. fuse size (time delay) A
Min. ampacity A
Fan motor F.L.A.
0.16/0. 17 (33/39)
Dimensions
1/2
Cooling
15
3.0
1.2
+ 1.2
1,270-920
1,200-870
Aidow Hi-Lo
99
OUTDOOR UNIT MODEL
Externalfinish
Sound level dB(A)
Power supply V,phase,Hz
Max. fuse size (timedelay) A
Min. ampacity A
Externalfinish
NH47NAD
17.5
87
W in.
D ~n.
1/2
Gas ~n.
-
Flared
Flared
lndoor intake air temperature
95 FDB, 71 FWB
67'FDB. 57"FWB
Maximum
Miminurn
Dnl CFM
Wet CFM
101
Dimensions
Munsell 0.70Y 8.59/0.97
57-1/8
36-5/8
2-3/8
35
NH569NXA
20
105
0.16/0. 17 (33/39)
H in.
Weight Ib.
REMOTE CONTROLLER
Control voltage (by built-in transformer)
REFRIGERANT PIPING
164
Outdoor intake air temperature
115FDB
*PL: O'FDB
W in.
D in.
H in.
PU30EK.PU30EK-1
0.16/0.17 (33/39)
Capillary tube
34-1/4
1 38-3/16
1 38-3/16
11-5/8
1 13-9/16 / 13-9/16
49-9/16
3/4
Weight PU36EK.PU36EK-1
1 PU42EK2,PU42EK2-i
208
164
3/4
164
164
Munsell 5Y 7/1
With mdoor unit
-
Indoor unit - remote controller : DC12V, Indoor unit - outdoor unit : DC12V
Not supplied (optional parts)
220
3/4
164
---
164
55
260
55 56
208-230.1.60
30
I
30
1
40
20 22 27

MODELS : PC24/30/36/42EK, PCL24EK
1 Power consurn~tion 1 *1 kWI 2.43 1 3.10 1 3.80 I 4.40 I
1 EER * 1 1 9.9 I 10.0 1 9.6 1 9.7 I
-
Model
Item
-
Capacity
PC42EK
42,500
PC24EK
PCL24EK
24,000
* 1 Btu/h
SEER
INDOOR UNlT MODEL
External finish
1 Max fuse size (time delay) A / 15 1 15 I 15 1 15 I
Power supply V,Phase, Hz
PC30EK
31.000
10.3
PC24EK
PCL24EK
115,1,60
1 Fan motor F.L.A. I 1.8 1 1.8 I 2.1 I 2.4 1
PC36EK
36,500
Min ampacity A
Munsell2.5Y 8/0.3
& N2
10.4
PC30EK
1 Sound level Hi-Lo dB(A)/ 50-43 1 50-43 1 52-44 1 52-44 1
3.0
Airflow Hi-Lo
1 Cond. drain connection OD in. 1 1 1 1 1 1 I 1 1
10.2
PC36EK 10.0 PC42EK
3.0
Dry CFM
Wet CFM
/ Weight Ib. / 93 I 115 1
Pints/h
3.0
1,050-850
900-730
1 w in.
/ power supply V,phase,Hz / 208/230,1,60 I
3.0
7.2
50-7/16
26-13/16
10-11'8
Dlrnensions
OUTDOOR UNlT MODEL
External finish
/ Max. fuse size (time delavl
1,050-850
900-730
62-1
/4
26-13/16
10-1/8
D in.
H in.
I Min. ampacity
9.6
I
1,270-990
1,100-860
PU24EK. PU24EK-7
~"124~~.
PU~~EK-,
1 Refrigerant control 1 Capillarytube I
1,270-990
1,100-860
11.1
Sound level
12.6
Munsell 5Y7/1
PU30EK.PU30EK-1
Fan motor F.L.A. 0.65+0.65
NH33NBD
11.5
54
0.16/0. 17 (33/39)
Compressor
1 Welght
-- -
-
lbi
207 1 208 1 220 1 260j
--
With Indoor unlt
--
lndoor unlt - remote controler DC12V. Indoor unlt - outdoor unit DC12V
PU36EK.PU36EK-1
Model R.L.A.
L.R.A.
dB(A)
in.
in.
1 REFRIGERANT PIPING 1 Not supplied (optional parts) 1
PU42EK2,PU42EK2-1
0.65+0.65
NH41NAD
14.0
73
0.16/0. 17 (33/39)
Crankcase heater A(W)
Llquid
1 P~pesize
55
1
55
-.
33-1/4
11-5/8
0.75+0.75
NH47NAD
17.5
87
0.16/0.17(33/39)
38-3/ 16
13-9/16
in. 49-9/16
I
/ Connection method
1 Indoors
-- .
I Outdoors
0.8+0.8
NH569NXA
20
105
0.16/0.17 (33/39)
49-9/16
~n.
Flared
3/8
Flared
Between the mdoor
& Pght- 9- . - - - 164 --
outdoor units
' Plplng length ft
-- . - --
164
NOTE
* 1 Rat~ngcondltlons - Indoor 80FDB. 67 FWB outdoor 95 FDB 75 FWB
~n.
Operating range
5/8
-- - -- -- -
- -- -
- -
1 Indoor ~ntakea~rtemperature Outdoor lntake a~rtemperature
7
95 FDB 71 FWB
Cooling 1 ;'':;+-- 115FDB T
L--- 1
67 FDB, 57 FW8
'PCL OFDB :
- I--
*WITH 'SIIIND BAFFLE INSTALLED
12

MODELS : PK18/24/30EKrPKL18/24EK
-
/ power supply V,Phase.Hz / 115,1,60 I
PKLIZEK
Item
-
Power consumption
10.7
INDOOR UNIT MODEL PKL12EK
I I I
OUTDOOR UNIT MODEL
I PULl2EK. PULl2EK 1 I ~~:~~~li.p~,"~&~ $1 P~~~&P,"~~Pu~oEK 1
PK18EK
PKLl8EK
External finish MM
1.70
10.6
11.O
PKlSEK
PKLZK
External finlsh Munsell 5Y7/1
Power supplv V,phase,Hz
,
208/230.1.60
Capacity
Max. fuse size (timedelay)
A
Min ampacity A
Fan motor F.L.A.
I 1 T -
( Max. fuse size (time delay) A 1 15 20 20 30 1
PK24EK
PKL24EK
2.37
10.1
10.3
PK24EK
PKL24EK
15
1.O
0.5
480-390
460-370
3.8
49-43
1
48-1/16
8-11/16
14-3116
55
Airflow Hi-Lo
PK30EK
* 1 Btu/h / 12,000
2.94
9.8
10.0
PK3OEK
Dn! CFM
Wet CFM
I / Model 1 RH167NAB 1 RH247NAB 1 NH33NBD 1 NH41NAD 1
15
1.O
0.9
660-500
600-460
5.3
49-43
1
Min. arnpacity A
Fan motor
-
F.L.A.
Compressor 8 9 12 0 11 5
--
29 37 54 73
18,000
Moisture removal Pintsjh
Sound level Hi-Lo dEm)
Cond. drain connection OD ~n.
Crankcaseheater 0 11
/0 12 (23128)
1 0 16/0 1 7 (33139) 1 0 16/0 17 (33139)
Capillary tube
Sound level
- -- --
53 55
I
34-1/4
---
Dlrnens~ons
--
11-5/8
-- --
15
2.0
ppp
0.9
660-500
600-460
7.2
49-43
1
Dimensions
11
0.65
1 1n.1 25-9/16 1 33-112 1 49-9116 I
24,000
15
2.0
0.9
660-500
600-460
8.6
50-44
1
W in.
D in.
60-1
/4
8-11/16
14-3/16
Weight
- .
REMOTE CONTROLLER
28.800
in.
Ib. 68
16
0.65
Control volage (by built-ln transformer)
--
1
l"door unit - remote controller : DClIV, Indoor unit - outdoor unit : DCl2V
. - .
REFRIGERANT PIPING Not su~oliedlo~t~onal~arts)
69
Pipe sue
16
0.65+0 65
/ Llquid in. 1
0.65+0.65 4
1 Gas ~n. 1
Connection method Indoors
--
Outdoors Flared
Flared
Betweenthe mdoor
&
I Height ft 1
outdoor unlts
1 Plplnq length -7.7 -
NOTE : * 1. Rating conditions - indoor : 80FDB, 67 FWB outdoor : 95 FDB, 75 FWB
Operating range
I
1 - --
F
Max~mum 95 FDB, 71 FWB
-- -- , - --
115FDB
1 Cooling i -
Mlnlmurn 67 FDB, 57 FWB
I - -- -2 -- _-I _ -
*PK o FDB T "PKL OFDB 1
-I - _- -
"WITH WIND BAFFLE INSTALLED

MODELS : PL18/24/30/36/42FK2,PLL12/18/24FK
1. PERFORMANCE DATA
1) COOLING CAPACITY
1
Models
PLLI2FK
DATA
PL18FK2
PLLI8FK
-
Outdoor air I Outdoor mtake air DB temperature (OF) 1
75 85 95 105 115
TC
I SHC / TPC I TC SHC
/ TPC I TC I SHC I TPC / TC 1 SHC 1 TPC 1 TC 1 SHC I TPC
Notes 1. B.F
: Bypass Factor, IWB : Intake air wet-bulb temperature.
TC
: Total Capacity ( x 1O3 Btu/h), SHC : Sensible Heat Capacity ( x 1O3 Btu/h)
TPC
: Total Power Cunsumption (kW).
2. SHC is based on 80°Fof indoor intake air DB temperature.
2) COOLING CAPACITY CORRECTIONS
MODELS
PL18FK2
PLL12FK
PLL18FK
PL24FK2
PLL24FK
Refrigerantpiping length (oneway)
25ft(std)
1.o
,0
40ft
0.992
0.981
55ft
0.983
0.968
7Oft
0.978
0.952
85ft
0.966
0.940
1OOft
0.959
0.925
115ft
0.950
0.913
130ft
0.945
0.900
150ft
-
0.886
164ft
-
0.874

2. PERFORMANCECURVE
NOTE : A point on the curve shows the reference point.
PLL18FK COOUNG CAPACITY
Outdoor intake air DB temperature ('F)
PL18FK2 COOUNG CAPACITY
Outdwr intake air Dl3 temperature rF)
Outdoor intake air DB terrperature (OF)

NOTE : A point on the curve showsthe reference point.
Outdoor intake air DB temperature (OF)
Outdoor intake alr DB temperature ("F)
? lndoor , , &take air WBtemperature (;FW
Outdoor ~ntakeair DB temperature (-F)

Data is based on the condition of indoor humidity 50%.
Air flow should be set at HI.
A pointon the curve shows the referencepoint.
<Cooling mode>
[psiGI PLLl2FK
350
340
330 86
320 80
310 75
300 70
290
280
270
260
250
240
230
220
210
200
190
180
170
1 60
150 30 40 50 60 70 80 90 100 110
Outdoor ambient temperature DB("F)
. -- -~~
350
340
330 86
320 80
310 75
300 70
290
280
270
260
250
240
230
220
210
200
190
180
170
1 60
150 30 40 50 60 70 80 90 100 110
Outdoor ambient temperature DB("F)
[psi.GI
PLLl2FK
100 86
90 80
75
80 70
70
e!
$ 60
a
c
.g 50
0
V)
40
30
20 30 40 50 60 70 80 90 100 110
Outdoor ambienttemperature DB("F)
PL18FK
[t~si.G] PLL18FK
100 86
90 80
80 75
70
70
e!
$ 60
a
.: 50
3
V)
40
30
20 30 40 50 60 70 80 90 100 110
Outdoor ambient temperature DB("F)

Data is based on the condition of indoor humidity 50%.
Air flow should be set at HI.
A point on the curve shows the referencepoint.
35U
340
330
320
310 86
300 80
290 75
280 70
270
260
250
240
230
220
210
200
190
180
170
160
150 30 40 50 60 70 80 90 100 110
Outdoorambienttemperature DB("F)
. -- -
350
340
330 86
320 80
310 75
300 70
290
280
270
260
250
240
230
220
210
200
190
180
170
160
150 30 40 50 60 70 80 90 100 110
Outdoorambient temperature DB("F)
PL24FK
86
80
75
70
30 40 50 60 70 80 90 100 110
Outdoorambienttemperature
DB("F)
Outdooramb~enttemperature
DBrF)