Mitsubishi PLFY-P12NBMU-E Operating manual

TECHNICAL & SERVICE MANUAL
Indoor unit
[Model names] [Service Ref.]
PLFY-P12NBMU-E
PLFY-P15NBMU-E
PLFY-P18NBMU-E
PLFY-P24NBMU-E
PLFY-P30NBMU-E
PLFY-P36NBMU-E
No. OCH421
REVISED EDITION-B
CONTENTS
1. TECHNICAL CHANGES.........................2
2. FEATURES............................................. 3
3. PART NAMES AND FUNCTIONS..........4
4. SPECIFICATIONS................................... 6
5. 4-WAY AIR FLOW SYSTEM.................10
6. OUTLINES AND DIMENSIONS............ 13
7. WIRING DIAGRAM...............................14
8.
REFRIGERANT SYSTEM DIAGRAM
......
16
9. MICROPROCESSOR CONTROL......... 17
10. TROUBLESHOOTING......................... 24
11. DISASSEMBLY PROCEDURE.............33
SPLIT-TYPE, HEAT PUMP AIR CONDITIONERS
PLFY-P12NBMU-E PLFY-P12NBMU-ER1
PLFY-P12NBMU-ER2
PLFY-P15NBMU-E PLFY-P15NBMU-ER1
PLFY-P15NBMU-ER2
PLFY-P18NBMU-E PLFY-P18NBMU-ER1
PLFY-P18NBMU-ER2
PLFY-P24NBMU-E PLFY-P24NBMU-ER1
PLFY-P24NBMU-ER2
PLFY-P30NBMU-E PLFY-P30NBMU-ER1
PLFY-P30NBMU-ER2
PLFY-P36NBMU-E PLFY-P36NBMU-ER1
PLFY-P36NBMU-ER2
Note:
• This manual does not
cover outdoor units.
When servicing them,
please refer to the outdoor
unit’s service manual.
• RoHS compliant products
have <G> mark on the
spec name plate.
April 2012
INDOOR UNIT
Model name
indication
PARTS CATALOG (OCB421)
R410A / R22
Revision:
•PLFY-P12/15/18/24/30/36
NBMU-ER2 have been
added in REVISED
EDITION-B.
•Some descriptions have
been modified.
•Please void OCH421
REVISED EDNTION-A.

2
1TECHNICAL CHANGES
PLFY-P12NBMU-ER1 PLFY-P12NBMU-ER2
PLFY-P15NBMU-ER1 PLFY-P15NBMU-ER2
PLFY-P18NBMU-ER1 PLFY-P18NBMU-ER2
PKFY-P24NBMU-ER1 PLFY-P24NBMU-ER2
PKFY-P30NBMU-ER1 PLFY-P30NBMU-ER2
PKFY-P36NBMU-ER1 PLFY-P36NBMU-ER2
INDOOR CONTROLLER BOARD (I.B.) has been changed (S/W version up).
PLFY-P12NBMU-E PLFY-P12NBMU-ER1
PLFY-P15NBMU-E PLFY-P15NBMU-ER1
PLFY-P18NBMU-E PLFY-P18NBMU-ER1
PKFY-P24NBMU-E PLFY-P24NBMU-ER1
PKFY-P30NBMU-E PLFY-P30NBMU-ER1
PKFY-P36NBMU-E PLFY-P36NBMU-ER1
INDOOR CONTROLLER BOARD (I.B.) has been changed.
Use the specified refrigerant only
Never use any refrigerant other than that specified.
Doing so may cause a burst, an explosion, or fire when the unit is being used, serviced, or disposed of.
Correct refrigerant is specified in the manuals and on the spec labels provided with our products.
We will not be held responsible for mechanical failure, system malfunction, unit breakdown or accidents caused
by failure to follow the instructions.
OCH421B

3
2FEATURES
4. i-see Sensor (OPTIONAL CORNER PANEL)
The i see sensor is a radiation temperature sensor originated from Mitsubishi’s new technology. In order to create a really
comfortable space in shops and offices, it is essential to control the temperature near the floor where occupants/visitors
gather. The i see sensor measures the infrared rays generated from the surrounding wall and floor surface at an angle of
360° and the infrared ray energy is computed to convert it into the value of temperature. In addition, the floor temperature
at distant spots (radiation temperature) is also measured to supply the optimum airflow to realize comfort which was never
experienced in the past.
Models Cooling capacity / Heating capacity
PLFY-P12NBMU-E 12,000 / 13,500 Btu/h
PLFY-P15NBMU-E 15,000 / 17,000 Btu/h
PLFY-P18NBMU-E 18,000 / 20,000 Btu/h
PLFY-P24NBMU-E 24,000 / 27,000 Btu/h
PLFY-P30NBMU-E 30,000 / 34,000 Btu/h
PLFY-P36NBMU-E 36,000 / 40,000 Btu/h
Indoor Unit
Operation image of "Wave Airflow"
HighLow
Automatic air
speed adjustment
Medium 2 Medium1
1. WIDE AIRFLOW
The new wide shape vane capable of wide angle air supply provides comfort even at the corners of a room regardless
of cooling and heating operation. A reduction in the air speed by 20% compared to the conventional product eliminates
uncomfortable draft sensation for friendly air conditioning.
2. WAVE AIRFLOW SYSTEM (HEATING MODE)
The wave airflow system has 4 vanes where each vane runs independently. Repeating of horizontal and down blows with a
time lag allows the conditioned warm air to be distributed even to room corners thus preventing uneven room temperature
distribution.
3. AUTOMATIC AIR SPEED ADJUSTMENT MODE
The automatic air speed adjustment mode is provided in addition to the 4 air speed stages of "High/Medium 1/Medium 2/
Low." Air speed can be changed freely in accordance with a difference between the set temperature and the room tempera-
ture. The automatic air speed adjustment mode presents quick cooling of a room with the high mode, such as at the start-
ing up of cooling operation, for example. After the room temperature is stabilized, the low mode will be applied by automatic
switching to keep your comfort.
OCH421B

4
3PART NAMES AND FUNCTIONS
Drain pipe
Filter
Vane
Gas pipe
Liquid pipe
Air outlet
i-see sensor
(option)
Air intake
(Intake grille)
Indoor unit
PAR-21MAA
ON/OFF
FILTER
CHECK
OPERATION
CLEAR
TEST
TEMP.
MENU
BACK DAY
MONITOR/SET
CLOCK
ON/OFF
Operation Section
Temperature setting buttons
Down
Up
Timer Menu button
(Monitor/Set button)
Mode button (Return button)
Set Time buttons
Back
Ahead
Timer On/Off button
(Set Day button)
Opening the
cover
ON/OFF button
Fan Speed button
Filter button
(<Enter> button)
Test Run button
Check button (Clear button)
Airflow Up/Down button
Louver button
( Operation button)
To return operation
number
Ventilation button
( Operation button)
To go to next operation
number
Built-in temperature sensor
Wired remote controller
Note:
The phrase "Wired remote controller" in this manual refers only to the PAR-21MAA.
If you need any information for the other remote controller, please refer to either the installation manual or initial setting manual which are included in
remote controller's box.
OCH421B

5
°F°C
°F°C
ERROR CODE
AFTER
TIMER
TIME SUN MON TUE WED THU FRI SAT
ON
OFF
Hr
AFTER
FILTER
FUNCTION
ONLY1Hr.
WEEKLY
SIMPLE
AUTO OFF
Display Section
For purposes of this explanation,
all parts of the display are shown
as lit. During actual operation, only
the relevant items will be lit.
Identifies the current operation
Shows the operating mode, etc.
*Multilanguage display is available.
“Centrally Controlled” indicator
Indicates that operation from the
remote controller has been prohib-
ited by a master controller.
“Timer is Off” indicator
Indicates that the timer is off.
Temperature Setting
Shows the target temperature.
Day-of-Week
Shows the current day of the week.
Time/Timer Display
Shows the current time, unless the simple or Auto Off
timer is set.
If the simple or Auto Off timer is set, the time to be
switched off is shown.
“Sensor” indication
Displayed when the remote controller
sensor is used.
“Locked” indicator
Indicates that remote controller but-
tons have been locked.
“Clean The Filter” indicator
To be displayed on when it is time to
clean the filter.
Timer indicators
The indicator comes on if the corre-
sponding timer is set.
Up/Down Air Direction indica-
tor
“One Hour Only” indicator
Room Temperature display
Shows the room temperature. The room
temperature display range is 46–102F.
The display blinks if the temperature
is less than 46
F or 102 F or more.
Louver display
Indicates the action of the swing louver.
Does not appear if the louver is not
running.
(Power On indicator)
Indicates that the power is on.
Fan Speed indicator
Shows the selected fan speed.
Ventilation indicator
Appears when the unit is running in
Ventilation mode.
Displayed if the airflow is set to
Low or downward during COOL
or DRY mode. (Operation varies
according to model.)
The indicator goes off in one hour,
at which time the airflow direction
also changes.
The indicator shows the direc-
tion of the outcoming airflow.
Wired remote controller
OCH421B

6
4-1. SPECIFICATIONS
4SPECIFICATIONS
*1 Nominal cooling conditionsNote: *2 Nominal heating conditions Unit converter
Indoor : 80degF D.B. / 67degF W.B. kcal/h = kW × 860
(26.7degC D.B. / 19.4degC W.B.) 70degF D.B. (21.1degC D.B.) BTU/h = kW × 3,412
Outdoor : 95degF D.B. 47degF D.B. / 43degF W.B. cfm = m3/min × 35.31
(35degC D.B.) (8.3degC D.B. / 6.1degC W.B.) lbs = kg/0.4536
Pipe length : 25 ft. (7.6 m) 25 ft. (7.6 m)
Level difference : 0 ft. (0 m) 0 ft. (0 m) *Above specification
data is subject to
rounding variation.
*Due to continuing improvement, above specification may be subject to change without notice.
Details on foundation work, duct work, insulation work, electrical wiring, power source switch, and other items
shall be referred to the Installation Manual.
1-phase 208-230V 60Hz
Galvanized steel sheet
MUNSELL (6.4Y 8.9/0.4)
35
× 950 × 950
1-3/8 × 37-13/32 × 37-13/32
35 × 950 × 950
1-3/8 × 37-13/32 × 37-13/32
35 × 950 × 950
1-3/8 × 37-13/32 × 37-13/32
13 (6) 13 (6) 13 (6)
Cross fin
DC motor
Direct-drive
PS
PP honeycomb (long life filter, anti-bacterial type)
Fuse
LEV
R410A, R22 CITY MULTI
O.D. 1-1/4 (32) O.D. 1-1/4 (32) O.D. 1-1/4 (32)
Installation Manual, Instruction Book
PLFY-P12NBMU-E
PLFY-P12NBMU-ER1
PLFY-P12NBMU-ER2
258
× 840 × 840
10-3/16 × 33-3/32 × 33-3/32 10-3/16 × 33-3/32 × 33-3/32 10-3/16 × 33-3/32 × 33-3/32
258 × 840 × 840 258 × 840 × 840
3.5
12,000
0.03
0.22
4.0
13,500
0.02
0.14
49 (22) 49 (22) 51 (23)
PLP-40BAU PLP-40BAU PLP-40BAU
0.000 (208V) 0.000 (208V) 0.000 (208V)
0
—
—— —— —
0.000 (230V)
00.000 (230V) 00.000 (230V) 0
0.050
11.0 - 12.0 - 13.0 - 14.0
183 - 200 - 217 - 233
388 - 424 - 459 - 494
27 - 28 - 29 - 31 (208-230V)
PAC-SH51SP-E
PAC-SH59KF-E
PAC-SH53TM-E
1/4 (6.35) Flare
1/4 (6.35) Flare
1/2 (12.7) Flare
1/2 (12.7) Flare 1/2 (12.7) Flare 1/2 (12.7) Flare 1/2 (12.7) Flare 5/8 (15.88) Flare
1/4 (6.35) Flare
1/4 (6.35) Flare 1/4 (6.35) Flare 3/8 (9.52) Flare
PLFY-P15NBMU-E
PLFY-P15NBMU-ER1
PLFY-P15NBMU-ER2
4.4
15,000
0.04
0.29
5.0
17,000
0.03
0.22
Turbo fan
× 1Turbo fan × 1 Turbo fan × 1
0
0.050
12.0 - 13.0 - 14.0 - 16.0
200 - 217 - 233 - 267
424 - 459 - 494 - 565
27 - 28 - 30 - 31 (208-230V)
PAC-SH51SP-E
PAC-SH59KF-E
PAC-SH53TM-E
PLFY-P18NBMU-E
PLFY-P18NBMU-ER1
PLFY-P18NBMU-ER2
5.3
18,000
0.05
0.36
5.9
20,000
0.04
0.29
0
0.050
233 - 250 - 267 - 300
494 - 530 - 565 - 636
28 - 29 - 30- 32 (208-230V)
PAC-SH51SP-E
PAC-SH59KF-E
PAC-SH53TM-E
14.0 - 15.0 - 16.0 - 18.0
Air outlet shutter plate
High efficiency filterelement
Multi-function casement
Model
Power source
Cooling capacity
(Nominal)
Heating capacity
(Nominal )
External finish
External dimension H
× W × D
Net weight
Decoration panel
Heat exchanger
FAN
Noise level (Low-Mid2-Mid1-High)
(measured in anechoic room)
Insulation material
Air filter
Protection device
Refrigerant control device
Connectable outdoor unit
Diameter of
refrigerant pipe
(O.D.)
Field drain pipe size
Standard
attachment
Power input
Current input
Power input
Current input
Type x Quantity
External
static press.
Motor type
Motor output
Driving mechanism
Airflow rate
(Low-Mid2-
Mid1-High)
Liquid
Gas
Document
Accessory
Optional parts
Remark
Installation
Model
External finish
Dimension
H
× W × D
Net weight
kW
BTU/h
kW
A
kcal/h
Btu/h
kW
A
mm
in.
Ibs (kg)
mm
in.
Ibs (kg)
Pa
in.WG
Pa
in.WG
kW
m3/min
L / s
cfm
dB <A>
dB <A>
dB <A>
in. (mm)
in. (mm)
in. (mm)
*1
*1
*2
*2
(R410A)
(R22)
(R22)
(R410A)
OCH421B

7
*1 Nominal cooling conditionsNote: *2 Nominal heating conditions Unit converter
Indoor : 80degF D.B. / 67degF W.B. kcal/h = kW × 860
(26.7degC D.B. / 19.4degC W.B.) 70degF D.B. (21.1degC D.B.) BTU/h = kW × 3,412
Outdoor : 95degF D.B. 47degF D.B. / 43degF W.B. cfm = m3/min × 35.31
(35degC D.B.) (8.3degC D.B. / 6.1degC W.B.) lbs = kg/0.4536
Pipe length : 25 ft. (7.6 m) 25 ft. (7.6 m)
Level difference : 0 ft. (0 m) 0 ft. (0 m) *Above specification
data is subject to
rounding variation.
*Due to continuing improvement, above specification may be subject to change without notice.
Details on foundation work, duct work, insulation work, electrical wiring, power source switch, and other items
shall be referred to the Installation Manual.
35 × 950 × 950
1-3/8 × 37-13/32 × 37-13/32
13 (6)
O.D. 1-1/4 (32)
10-3/16 × 33-3/32 × 33-3/32
258 × 840 × 840
51 (23)
PLP-40BAU
0.000 (208V)
—
—
0.000 (230V)
0
5/8 (15.88) Flare
5/8 (15.88) Flare
3/8 (9.52) Flare
3/8 (9.52) Flare
PLFY-P24NBMU-E
PLFY-P24NBMU-ER1
PLFY-P24NBMU-ER2
7.0
24,000
0.06
0.43
7.9
27,000
0.05
0.36
Turbo fan × 1Turbo fan × 1Turbo fan × 1
0
0.050
15.0 - 16.0 - 18.0 -20.0
250 - 267 - 300 - 333
530 - 565 - 636 - 706
28 - 30 - 32 - 34 (208-230V)
PAC-SH51SP-E
PAC-SH59KF-E
PAC-SH53TM-E
35 × 950 × 950
1-3/8 × 37-13/32 × 37-13/32
13 (6)
O.D. 1-1/4 (32)
10-3/16 × 33-3/32 × 33-3/32
258 × 840 × 840
51 (23)
PLP-40BAU
0.000 (208V)
—
—
0.000 (230V)
0
5/8 (15.88) Flare
5/8 (15.88) Flare
3/8 (9.52) Flare
3/8 (9.52) Flare
PLFY-P30NBMU-E
PLFY-P30NBMU-ER1
PLFY-P30NBMU-ER2
8.8
30,000
0.07
0.51
10.0
34,000
0.06
0.43
0
0.050
16.0 - 18.0 - 20.0 - 22.0
267 - 300 - 333 - 367
565 - 636 - 706 - 777
30 - 32 - 35 - 37 (208-230V)
PAC-SH51SP-E
PAC-SH59KF-E
PAC-SH53TM-E
35 × 950 × 950
1-3/8 × 37-13/32 × 37-13/32
13 (6)
O.D. 1-1/4 (32)
11-3/4 × 33-3/32 × 33-3/32
298 × 840 × 840
60 (27)
PLP-40BAU
0.000 (208V)
—
—
0.000 (230V)
0
3/4 (19.05) Flare
5/8 (15.88) Flare
3/8 (9.52) Flare
3/8 (9.52) Flare
PLFY-P36NBMU-E
PLFY-P36NBMU-ER1
PLFY-P36NBMU-ER2
10.5
36,000
0.16
1.07
11.7
40,000
0.15
1.00
0
0.120
22.0 - 25.0 - 28.0 - 30.0
367 - 417 - 467 - 500
777 - 883 - 989 - 1,059
35 - 38 - 41 - 43 (208-230V)
PAC-SH51SP-E
PAC-SH59KF-E
PAC-SH53TM-E
Air outlet shutter plate
High efficiency filterelement
Multi-function casement
Model
Power source
Cooling capacity
(Nominal)
Heating capacity
(Nominal )
External finish
External dimension H × W × D
Net weight
Decoration panel
Heat exchanger
FAN
Noise level (Low-Mid2-Mid1-High)
(measured in anechoic room)
Insulation material
Air filter
Protection device
Refrigerant control device
Connectable outdoor unit
Diameter of
refrigerant pipe
(O.D.)
Field drain pipe size
Standard
attachment
Power input
Current input
Power input
Current input
Type × Quantity
External
static press.
Motor type
Motor output
Driving mechanism
Airflow rate
(Low-Mid2-
Mid1-High)
Liquid
Gas
Document
Accessory
Optional parts
Remark
Installation
Model
External finish
Dimension
H × W × D
Net weight
kW
BTU/h
kW
A
kcal/h
Btu/h
kW
A
mm
in.
Ibs (kg)
mm
in.
Ibs (kg)
Pa
in.WG
Pa
in.WG
kW
m3/min
L/s
cfm
dB <A>
dB <A>
dB <A>
in. (mm)
in. (mm)
in. (mm)
*1
*1
*2
*2
(R410A)
(R22)
(R22)
(R410A)
1-phase 208-230V 60Hz
Galvanized steel sheet
MUNSELL (6.4Y 8.9/0.4)
Cross fin
DC motor
Direct-drive
PS
PP honeycomb (long life filter, anti-bacterial type)
Fuse
LEV
R410A, R22 CITY MULTI
Installation Manual, Instruction Book
OCH421B

8
4-2. SOUND LEVEL
PLFY-P-NBMU-E PLFY-P12NBMU-E
PLFY-P12NBMU-ER1
PLFY-P12NBMU-ER2
PLFY-P15NBMU-E
PLFY-P15NBMU-ER1
PLFY-P15NBMU-ER2
PLFY-P18NBMU-E
PLFY-P18NBMU-ER1
PLFY-P18NBMU-ER2
PLFY-P24NBMU-E
PLFY-P24NBMU-ER1
PLFY-P24NBMU-ER2
PLFY-P30NBMU-E
PLFY-P30NBMU-ER1
PLFY-P30NBMU-ER2
PLFY-P36NBMU-E
PLFY-P36NBMU-ER1
PLFY-P36NBMU-ER2
27-28-29-31
27-28-30-31
28-29-30-32
28-30-32-34
30-32-35-37
35-38-41-43
Sound level dB (A)
Sound level at anechoic room : Low-Mid2-Mid1-High
5 ft (1.5m)
Measurement location
PLFY-P12NBMU-E
PLFY-P12NBMU-ER1
PLFY-P12NBMU-ER2
External static pressure : 0Pa
Power source : 208,230V, 60Hz Power source : 208,230V, 60Hz Power source : 208,230V, 60Hz
PLFY-P15NBMU-E
PLFY-P15NBMU-ER1
PLFY-P15NBMU-ER2
External static pressure : 0Pa
PLFY-P18NBMU-E
PLFY-P18NBMU-ER1
PLFY-P18NBMU-ER2
External static pressure : 0Pa
PLFY-P30NBMU-E
PLFY-P30NBMU-ER1
PLFY-P30NBMU-ER2
External static pressure : 0Pa
Power source : 208,230V, 60Hz
Power source : 208,230V, 60Hz Power source : 208,230V, 60Hz
PLFY-P24NBMU-E
PLFY-P24NBMU-ER1
PLFY-P24NBMU-ER2
External static pressure : 0Pa
PLFY-P36NBMU-E
PLFY-P36NBMU-ER1
PLFY-P36NBMU-ER2
External static pressure : 0Pa
Middle2 60Hz
High 60Hz
Low 60Hz Middle1 60Hz
Middle2 60Hz
High 60Hz
Low 60Hz Middle1 60Hz
Middle2 60Hz
High 60Hz
Low 60Hz Middle1 60Hz
Middle2 60Hz
High 60Hz
Low 60Hz Middle1 60Hz Middle2 60Hz
High 60Hz
Low 60Hz Middle1 60Hz
Middle2 60Hz
High 60Hz
Low 60Hz Middle1 60Hz
10.0
15.0
20.0
25.0
30.0
35.0
40.0
45.0
50.0
55.0
60.0
65.0
70.0
63 125 250 500 1k 2k 4k 8k
NC-60
NC-50
NC-40
NC-20
NC-30
Octave band pressure level (dB) 0dB=20Pa
Octave band center frequencies (Hz)
10.0
15.0
20.0
25.0
30.0
35.0
40.0
45.0
50.0
55.0
60.0
65.0
70.0
63 125 250 500 1k 2k 4k 8k
NC-60
NC-50
NC-40
NC-20
NC-30
Octave band pressure level (dB) 0dB=20Pa
Octave band center frequencies (Hz)
10.0
15.0
20.0
25.0
30.0
35.0
40.0
45.0
50.0
55.0
60.0
65.0
70.0
63 125 250 500 1k 2k 4k 8k
NC-60
NC-50
NC-40
NC-20
NC-30
Octave band pressure level (dB) 0dB=20Pa
Octave band center frequencies (Hz)
10.0
15.0
20.0
25.0
30.0
35.0
40.0
45.0
50.0
55.0
60.0
65.0
70.0
63 125 250 500 1k 2k 4k 8k
NC-60
NC-50
NC-40
NC-20
NC-30
Octave band pressure level (dB) 0dB=20Pa
Octave band center frequencies (Hz)
10.0
15.0
20.0
25.0
30.0
35.0
40.0
45.0
50.0
55.0
60.0
65.0
70.0
63 125 250 500 1k 2k 4k 8k
NC-60
NC-50
NC-40
NC-20
NC-30
Octave band pressure level (dB) 0dB=20Pa
Octave band center frequencies (Hz)
10.0
15.0
20.0
25.0
30.0
35.0
40.0
45.0
50.0
55.0
60.0
65.0
70.0
63 125 250 500 1k 2k 4k 8k
NC-60
NC-50
NC-40
NC-20
NC-30
Octave band pressure level (dB) 0dB=20Pa
Octave band center frequencies (Hz)
Approximate minimum
audible limit on
continuous noise
Approximate minimum
audible limit on
continuous noise
Approximate minimum
audible limit on
continuous noise
Approximate minimum
audible limit on
continuous noise
Approximate minimum
audible limit on
continuous noise
Approximate minimum
audible limit on
continuous noise
4-3. NC CURVES
OCH421B

9
4-4. ELECTRICAL PARTS SPECIFICATIONS
Parts name
Service Ref. Symbol
TH21
TH22
TH23
FUSE
MF
MV
DP
FS
LEV
TB2
TB5
TB15
Resistance 30"F/15.8k, 50"F/9.6k, 70"F/6.0k, 80"F/4.8k, 90"F/3.9k, 100"F/3.2k
Resistance 30"F/15.8k, 50"F/9.6k, 70"F/6.0k, 80"F/4.8k, 90"F/3.9k, 100"F/3.2k
Resistance 30"F/15.8k, 50"F/9.6k, 70"F/6.0k, 80"F/4.8k, 90"F/3.9k, 100"F/3.2k
250V 6.3A
(L1, L2, GR) 330V 30A
(M1, M2, S) 250V 20A
(1, 2) 250V 10A
Liquid pipe thermistor
Gas pipe thermistor
Vane motor
Drain pump
Drain float swich
Linear expansion valve
PLFY-P12NBMU-E
PLFY-P12NBMU-ER1
PLFY-P12NBMU-ER2
PLFY-P18NBMU-E
PLFY-P18NBMU-ER1
PLFY-P18NBMU-ER2
PLFY-P15NBMU-E
PLFY-P15NBMU-ER1
PLFY-P15NBMU-ER2
PLFY-P24NBMU-E
PLFY-P24NBMU-ER1
PLFY-P24NBMU-ER2
PLFY-P30NBMU-E
PLFY-P30NBMU-ER1
PLFY-P30NBMU-ER2
PLFY-P36NBMU-E
PLFY-P36NBMU-ER1
PLFY-P36NBMU-ER2
Room temperature
thermistor
Fuse
(Indoor controller board)
Fan motor
Power supply terminal
block
Transmission terminal
block
MA remote controller
terminal block
8-pole OUTPUT 50W 8-pole OUTPUT,
120W
MSBPC20M04
DC12V 300
 /phase
PLD-12230ME-1
INPUT 12/10.8W 241/Hr
Open/short detection
DC12V Stepping motor drive port dimension :3.2 (0~2000pulse)
EDM-40YGME DC12V Stepping motor drive port
dimension :
5.2 (0~2000pulse)
EDM-80YGME
OCH421B

10
54-WAY AIR FLOW SYSTEM
5-1. PLACEMENT OF THE AIR OUTLETS
• For this grille, the blowout direction comes in 11 patterns.
Also, by setting the remote controller to the appropriate settings, you can adjust the air flow and speed. Select the settings
from Table1 according to the location in which you want to install the unit.
1) Decide on the pattern of the airflow direction.
Blowout direction
pattern
4-direction<Table 1> 3-direction 2-direction
Note: For 3 and 2-direction settings, please use the air outlet shutter plate (option).
Pattern 1 Initial setting Pattern 4 One air outlet
fully closed Pattern 6 2 air outlet fully closed

Silent
2.5m, 8.2ft
2.7m, 8.9ft
3.0m, 9.8ft

Standard
2.7m, 8.9ft
3.0m, 9.8ft
3.3m, 10.8ft

High ceiling
3.5m, 11.5ft
3.5m, 11.5ft
3.5m, 11.5ft
4 direction
3 direction
2 direction
SWA
SWB
PLFY-P12·P15·P18·P24·P30NBMU-E
PLFY-P12·P15·P18·P24·P30NBMU-ER1
PLFY-P12·P15·P18·P24·P30NBMU-ER2
PLFY-P36NBMU-E
PLFY-P36NBMU-ER1
PLFY-P36NBMU-ER2




Silent
2.7m, 8.9ft
3.0m, 9.8ft
3.3m, 10.8ft

Standard
3.2m, 10.5ft
3.6m, 11.8ft
4.0m, 13.1ft

High ceiling
4.5m, 14.8ft
4.5m, 14.8ft
4.5m, 14.8ft
4 direction
3 direction
2 direction
SWA
SWB



2) According to the number of air outlets and height of the ceiling to install the unit, be sure to set up the switches
(SWA, SWB) on the address board to the appropriate setting.
• Correspondence of ceiling heights to numbers of air outlets
SW14
SW11
SW12
12345678910
ON
OFF
SW1
SWC
CN82
CN43
3
2
SWA
1
0
1
2
3
4
5
6
7
8
9
0
1
2
3
4
5
6
7
8
9
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
(10ths DIGIT) (1s DIGIT)
./ .
(BRANCH No.)
2
3
SWB
4
OCH421B