Mitsubishi Electronics PLFY-P36, PLFY-P30, PLFY-P24, PLFY-P18, PLFY-P15 User Manual

SPLIT-TYPE, HEAT PUMP AIR CONDITIONERS

November 2008

No. OCH421

REVISED EDITION-A

TECHNICAL & SERVICE MANUAL

Indoor unit [Model names]

PLFY-P12NBMU-E

PLFY-P15NBMU-E

PLFY-P18NBMU-E

PLFY-P24NBMU-E

PLFY-P30NBMU-E

PLFY-P36NBMU-E

Model name indication

R410A / R22

[Service Ref.]

PLFY-P12NBMU-E PLFY-P12NBMU-ER1 PLFY-P15NBMU-E PLFY-P15NBMU-ER1 PLFY-P18NBMU-E PLFY-P18NBMU-ER1 PLFY-P24NBMU-E PLFY-P24NBMU-ER1 PLFY-P30NBMU-E PLFY-P30NBMU-ER1 PLFY-P36NBMU-E PLFY-P36NBMU-ER1

Revision:

•PLFY-P12/15/18/24/30/36 NBMU-ER1 are added in REVISED EDITION-A.

•Some descriptions have been modified.

•Plase void OCH421.

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.

CONTENTS

	1. TECHNICAL CHANGES		.........................
						2
	2.	FEATURES.............................................				2
	3.	PART NAMES AND FUNCTIONS..........				3
	4.	...................................				5
		SPECIFICATIONS	...................
	5.					9
		4-WAY AIR FLOW SYSTEM
	6.	OUTLINES AND DIMENSIONS............12
		...............................			13
	7. WIRING DIAGRAM
	8. REFRIGERANT SYSTEM DIAGRAM			......
					14
			.........		15
INDOOR UNIT	9. MICROPROCESSOR CONTROL
		.........................			22
	10. TROUBLESHOOTING
	11. DISASSEMBLY PROCEDURE.............				31

PARTS CATALOG (OCB421)

1 TECHNICAL CHANGES

PLFY-P12NBMU-E PLFY-P15NBMU-E PLFY-P18NBMU-E PKFY-P24NBMU-E PKFY-P30NBMU-E PKFY-P36NBMU-E

PLFY-P12NBMU-ER1 PLFY-P15NBMU-ER1 PLFY-P18NBMU-ER1 PLFY-P24NBMU-ER1 PLFY-P30NBMU-ER1 PLFY-P36NBMU-ER1

INDOOR CONTROLLER BOARD (I.B.) has been changed.

2 FEATURES

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

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.

Operation image of "Wave Airflow"

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 temperature. The automatic air speed adjustment mode presents quick cooling of a room with the high mode, such as at the starting 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.

Low	Medium 2	Medium 1	High	Automatic air
				speed adjustment

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.

2

3 PART NAMES AND FUNCTIONS

Indoor unit

Drain pipe

Filter

Air outlet Liquid pipe

Gas pipe

i-see sensor (option)

Vane

Air intake (Intake grille)

Wired remote controller

Operation Section

Temperature setting buttons
Down
Up
Timer Menu button
(Monitor/Set button)
Mode button (Return button)
		TEMP.
Set Time buttons
Back		MENU	ON/OFF
Ahead	BACK	MONITOR/SET	DAY
Timer On/Off button	PAR-21MAA	CLOCK
(Set Day button)
Opening the
lid

	ON/OFF
	FILTER
	CHECK	TEST
OPERATION	CLEAR

Built-in temperature sensor

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

3

Wired remote controller

Display Section

For purposes of this explanation,	Day-of-Week
all parts of the display are shown	Shows the current day of the week.
as lit. During actual operation, only	Time/Timer Display
the relevant items will be lit.
	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.

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 prohibited by a master controller.

“Timer is Off” indicator

Indicates that the timer is off.

Temperature Setting

Shows the target temperature.

TIME SUN MON TUE WED THU FRI SAT
TIMER	Hr	ON
AFTER	AFTER	OFF
ERROR CODE		FUNCTION
°F°C		FILTER
°F°C
		WEEKLY
ONLY1Hr.		SIMPLE
		AUTO OFF

Up/Down Air Direction indicator

The indicator shows the direction of the outcoming airflow.

“One Hour Only” indicator

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.

Room Temperature display

Shows the room temperature. The room temperature display range is 46–102F. The display blinks if the temperature is less than 46F or 102F 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.

“Sensor” indication

Displayed when the remote controller sensor is used.

“Locked” indicator

Indicates that remote controller buttons 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 corresponding timer is set.

Fan Speed indicator

Shows the selected fan speed.

Ventilation indicator

Appears when the unit is running in Ventilation mode.

Note:

●“PLEASE WAIT” message

This message is displayed for approximately 3 minutes when power is supplied to the indoor unit or when the unit is recovering from a power failure.

●“NOT AVAILABLE” message

This message is displayed if an invalid button is pressed (to operate a function that the indoor unit does not have).

If a single remote controller is used to operate multiple indoor units simultaneously that are different types, this message will not be displayed as far as any of the indoor units is equipped with the function.

4

4

SPECIFICATIONS

4-1. SPECIFICATIONS

Model

PLFY-P12NBMU-E

PLFY-P15NBMU-E

PLFY-P18NBMU-E

PLFY-P12NBMU-ER1

PLFY-P15NBMU-ER1

PLFY-P18NBMU-ER1

Power source

BTU/h

1-phase 208-230V 60Hz

Cooling capacity

*1

12,000

15,000

18,000

(Nominal)

*1

kW

3.5

4.4

5.3

Power input

kW

0.03

0.04

0.05

Current input

A

0.22

0.29

0.36

Heating capacity

*2

Btu/h

13,500

17,000

20,000

(Nominal )

*2

kcal/h

4.0

5.0

5.9

Power input

kW

0.02

0.03

0.04

Current input

A

0.14

0.22

0.29

External finish

Galvanized steel sheet

External dimension H × W × D

in.

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

mm

258 × 840 × 840

258 × 840 × 840

258 × 840 × 840

Net weight

Ibs (kg)

49 (22)

49 (22)

51 (23)

Decoration panel

Model

PLP-40BAU

PLP-40BAU

PLP-40BAU

External finish

MUNSELL (6.4Y 8.9/0.4)

Dimension

in.

1-3/8 × 37-13/32 × 37-13/32

1-3/8 × 37-13/32 × 37-13/32

1-3/8 × 37-13/32 × 37-13/32

H × W × D

mm

35 × 950 × 950

35 × 950 × 950

35 × 950 × 950

Net weight

Ibs (kg)

13 (6)

13 (6)

13 (6)

Heat exchanger

Cross fin

FAN

Type x Quantity

Turbo fan × 1

Turbo fan × 1

Turbo fan × 1

External

in.WG

0.000 (208V)

0.000 (208V)

0.000 (208V)

static press.

Pa

0

0

0

in.WG

0.000 (230V)

0.000 (230V)

0.000 (230V)

Pa

0

0

0

Motor type

DC motor

Motor output

kW

0.050

0.050

0.050

Driving mechanism

Direct-drive

Airflow rate

cfm

388 - 424 - 459 - 494

424 - 459 - 494 - 565

494 - 530 - 565 - 636

(Low-Mid2-

m3/min

11.0 - 12.0 - 13.0 - 14.0

12.0 - 13.0 - 14.0 - 16.0

14.0 - 15.0 - 16.0 - 18.0

Mid1-High)

L / s

183 - 200 - 217 - 233

200 - 217 - 233 - 267

233 - 250 - 267 - 300

Noise level (Low-Mid2-Mid1-High)

dB <A>

27 - 28 - 29 - 31 (208-230V)

27 - 28 - 30 - 31 (208-230V)

28 - 29 - 3032 (208-230V)

(measured in anechoic room)

dB <A>

—

—

—

dB <A>

—

—

—

Insulation material

PS

Air filter

PP honeycomb (long life filter, anti-bacterial type)

Protection device

Fuse

Refrigerant control device

LEV

Connectable outdoor unit

R410A, R22 CITY MULTI

Diameter of

Liquid

(R410A)

in. (mm)

1/4 (6.35)

Flare

1/4 (6.35)

Flare

1/4 (6.35)

Flare

refrigerant pipe

(R22)

1/4 (6.35)

Flare

1/4 (6.35)

Flare

3/8 (9.52)

Flare

(O.D.)

Gas

(R410A)

in. (mm)

1/2 (12.7)

Flare

1/2 (12.7)

Flare

1/2 (12.7)

Flare

(R22)

1/2 (12.7)

Flare

1/2 (12.7)

Flare

5/8 (15.88)

Flare

Field drain pipe size

in. (mm)

O.D. 1-1/4 (32)

O.D. 1-1/4 (32)

O.D. 1-1/4 (32)

Standard

Document

Installation Manual, Instruction Book

attachment

Accessory

Optional parts

Air outlet shutter plate

PAC-SH51SP-E

PAC-SH51SP-E

PAC-SH51SP-E

High efficiency filterelement

PAC-SH59KF-E

PAC-SH59KF-E

PAC-SH59KF-E

Multi-function casement

PAC-SH53TM-E

PAC-SH53TM-E

PAC-SH53TM-E

Remark

Installation

Details on foundation work, duct work, insulation work, electrical wiring, power source switch, and other items

shall be referred to the Installation Manual.

Note:

*1 Nominal cooling conditions

*2 Nominal heating conditions

Unit converter

Indoor : 80degF D.B. / 67degF W.B.

70degF D.B.

kcal/h = kW × 860

(26.7degC D.B. / 19.4degC W.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
*Due to continuing improvement, above specification may be subject to change without notice.	rounding variation.

5

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

6

4-2. SOUND LEVEL

PLFY-P-NBMU-E

5 ft (1.5m)

Measurement location

* Measured in anechoic room.

Sound level at anechoic room : Low-Mid2-Mid1-High

		Sound level dB (A)
	PLFY-P12NBMU-E	27-28-29-31
	PLFY-P12NBMU-ER1
	PLFY-P15NBMU-E	27-28-30-31
	PLFY-P15NBMU-ER1
	PLFY-P18NBMU-E	28-29-30-32
	PLFY-P18NBMU-ER1
	PLFY-P24NBMU-E	28-30-32-34
	PLFY-P24NBMU-ER1
	PLFY-P30NBMU-E	30-32-35-37
	PLFY-P30NBMU-ER1
	PLFY-P36NBMU-E	35-38-41-43
	PLFY-P36NBMU-ER1

4-3. NC CURVES

PLFY-P12NBMU-E

PLFY-P15NBMU-E

PLFY-P18NBMU-E

PLFY-P12NBMU-ER1

PLFY-P15NBMU-ER1

PLFY-P18NBMU-ER1

External static pressure : 0Pa

External static pressure : 0Pa

External static pressure : 0Pa

Power source : 208,230V, 60Hz

Power source : 208,230V, 60Hz

Power source : 208,230V, 60Hz

High 60Hz

Middle1 60Hz

High

60Hz

Middle1 60Hz

High

60Hz

Middle1 60Hz

70.0

Low

60Hz

Middle2 60Hz

70.0

Low

60Hz

Middle2 60Hz

70.0

Low

60Hz

Middle2 60Hz

0dB=20Pa

0dB=20Pa

0dB=20Pa

65.0

65.0

65.0

60.0

NC-60

60.0

NC-60

60.0

NC-60

55.0

55.0

55.0

(dB)

50.0

NC-50

(dB)

50.0

NC-50

(dB)

50.0

NC-50

level

45.0

level

45.0

level

45.0

40.0

40.0

40.0

pressure

NC-40

pressure

NC-40

pressure

NC-40

35.0

35.0

35.0

30.0

30.0

30.0

NC-30

band

25.0

NC-30

band

25.0

NC-30

band

25.0

20.0

Octave

20.0

Approximate minimum

Octave

20.0

Approximate minimum

Octave

Approximate minimum

NC-20

15.0

audible limit on

NC-20

15.0

audible limit on

NC-20

15.0

audible limit on

continuous noise

continuous noise

10.0

continuous noise

10.0

125

250

500

1k

2k

4k

8k

10.0

125

250

500

1k

2k

4k

8k

125

250

500

1k

2k

4k

8k

63

63

63

Octave band center frequencies (Hz)

Octave band center frequencies (Hz)

Octave band center frequencies (Hz)

PLFY-P24NBMU-E

PLFY-P24NBMU-ER1

External static pressure : 0Pa

Power source : 208,230V, 60Hz

				High	60Hz		Middle1 60Hz
	70.0			Low	60Hz		Middle2 60Hz
0dB=20Pa
	55.0
	65.0
	60.0							NC-60
(dB)
	50.0							NC-50
level	45.0
pressure	40.0							NC-40
	30.0
	35.0
band	25.0							NC-30
Octave	20.0	continuous noise
		Approximate minimum						NC-20
	15.0	audible limit on
	10.0	125	250	500	1k	2k	4k	8k
	63

Octave band center frequencies (Hz)

PLFY-P30NBMU-E

PLFY-P30NBMU-ER1

External static pressure : 0Pa

Power source : 208,230V, 60Hz

				High	60Hz		Middle1 60Hz
	70.0			Low	60Hz		Middle2 60Hz
0dB=20Pa
	55.0
	65.0
	60.0							NC-60
(dB)
	50.0							NC-50
level	45.0
pressure	40.0							NC-40
	30.0
	35.0
band	25.0							NC-30
Octave	20.0	continuous noise
		Approximate minimum						NC-20
	15.0	audible limit on
	10.0	125	250	500	1k	2k	4k	8k
	63

Octave band center frequencies (Hz)

PLFY-P36NBMU-E

PLFY-P36NBMU-ER1

External static pressure : 0Pa

Power source : 208,230V, 60Hz

				High	60Hz		Middle1 60Hz
	70.0			Low	60Hz		Middle2 60Hz
0dB=20Pa
	55.0
	65.0
	60.0							NC-60
(dB)
	50.0							NC-50
level	45.0
pressure	40.0							NC-40
	30.0
	35.0
band	25.0							NC-30
Octave	20.0	continuous noise
	15.0	Approximate minimum						NC-20
		audible limit on
	10.0	125	250	500	1k	2k	4k	8k
	63

Octave band center frequencies (Hz)

7

4-4. ELECTRICAL PARTS SPECIFICATIONS

	Service Ref.	Symbol	PLFY-P12NBMU-E	PLFY-P15NBMU-E	PLFY-P18NBMU-E		PLFY-P24NBMU-E	PLFY-P30NBMU-E	PLFY-P36NBMU-E
	Parts name		PLFY-P12NBMU-ER1	PLFY-P15NBMU-ER1	PLFY-P18NBMU-ER1		PLFY-P24NBMU-ER1	PLFY-P30NBMU-ER1	PLFY-P36NBMU-ER1
	Room temperature	TH21	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
	thermistor
	Liquid pipe thermistor	TH22	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
	Gas pipe thermistor	TH23	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
	Fuse	FUSE				250V 6.3A
	(Indoor controller board)
	Fan motor	MF		8-pole OUTPUT 50W					8-pole OUTPUT,
									120W
	Vane motor	MV			MSBPC20M04
					DC12V 300 /phase
	Drain-up mechanism	DP			PLD-12230ME-1
					INPUT 12/10.8W 24 /Hr
	Drain float swich	FS			Open/short detection
			DC12V Stepping motor drive port dimension			:3.2 (0~2000pulse)		DC12V Stepping motor drive port
	Linear expansion valve	LEV						dimension :5.2 (0~2000pulse)
				EDM-40YGME
								EDM-80YGME
	Power supply terminal	TB2			(L1, L2, GR) 330V 30A
	block
	Transmission terminal	TB5			(M1, M2, S) 250V 20A
	block
	MA remote controller	TB15			(1, 2) 250V 10A
	terminal block

8

5 4-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.

<Table 1>

Blowout direction pattern

4-direction

3-direction

2-direction

Initial setting

One air outlet

2 air outlet

Pattern 1

Pattern 4

Pattern 6

fully closed

fully closed

Note: For 3 and 2-direction settings, please use the air outlet shutter plate (option).

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

SWA SWB
3		2
2		3			CN43
1		4
SW1

ON

OFF

1 2 3 4 5 6 7 8 9 10

SW12 SW11

9	0	1	9	0	1
8		2	8		2
7		3	7		3
6	5	4	6	5	4
(10ths DIGIT)			(1s DIGIT)

CN82

SWC SW14

			F0			1
	D	E				2
						3
							4
	C						5
	B						6
		A		9		7
					8

. / . (BRANCH No.)

PLFY-P12·P15·P18·P24·P30NBMU-E(R1)
SWA
SWB	Silent	Standard	High ceiling
4 direction	2.5m, 8.2ft	2.7m, 8.9ft	3.5m, 11.5ft
3 direction	2.7m, 8.9ft	3.0m, 9.8ft	3.5m, 11.5ft
2 direction	3.0m, 9.8ft	3.3m, 10.8ft	3.5m, 11.5ft

PLFY-P36NBMU-E(R1)
SWA
SWB	Silent	Standard	High ceiling
4 direction	2.7m, 8.9ft	3.2m, 10.5ft	4.5m, 14.8ft
3 direction	3.0m, 9.8ft	3.6m, 11.8ft	4.5m, 14.8ft
2 direction	3.3m, 10.8ft	4.0m, 13.1ft	4.5m, 14.8ft

9

5-2. BRANCH DUCT HOLE AND FRESH AIR INTAKE HOLE

At the time of installation, use the duct holes (cut out) located at the positions shown in following diagram, as and when required.

• A fresh air intake hole for the optional multi function casement can also be made.

Note:

The figures marked with * in the drawing below represent the dimensions of the main unit excluding those of the optional multi function casement.

When installing the optional multi function casement, add 5-5/16” (135 mm) to the dimensions marked on the figure. When installing the branch ducts, be sure to insulate adequately.

Otherwise, condensation and dripping may occur.

Fresh air intake hole

Indoor unit

Refrigerant pipe

								Unit : inch(mm)
	Fresh air intake hole diagram
Branch duct hole	3-:1/8 (:2.8) burring hole
	120						:4-29/32 (:125) burring hole pitch
							120
	7/32-6 (*158)
							3-:15/16 (:100) cut out hole

Ceiling

Drain pipe

Branch duct hole diagram (view from either side)

	3-17/32 3-15/16		3-15/16 3-17/32		1/8-5(130)
	(90)	(100)	(90)	15/16-3 (100)
				(90)
	70				(155)	(167)
					*6-3/32	*6-9/16
		13-25/32 (350)		14-:1/8 (:2.8) burring hole
	:6-7/8 (:175) burring hole pitch			:5-29/32 (:150) cut out hole

5-3. OPERATION IN CONJUNCTION WITH DUCT FAN (Booster fan)

•Whenever the indoor unit is operating, the duct fan also operates.

(1)Connect the optional multiple remote controller adapter (PAC-SA88HA-E) to the connector CN51 on the indoor controller board.

(2)Drive the relay after connecting the 12V DC relay

between the Yellow and Orange connector lines. MB: Electromagnetic switch power relay for duct fan.

X: Auxiliary relay (For DC 12V, coil rating: 1.0W or smaller)

			Be sure to secure insulation		~
CN51	5		material by tape, etc.
		Green
on			Yellow
indoor
controller	1		Orange		MB
board	Connector (5P)		Red
	Indoor unit side		Brown
			Multiple remote	Installation at site
			controller adapter	Be sure to secure insulation
			PAC-SA88HA-E	material by tape, etc.

Indoor controller board

Distance between indoor controller board and relay

must be within 10m (33ft).

CN51

Multiple remote controller adapter PAC-SA88HA-E

CN51

10

5-4. FRESH AIR INTAKE AMOUNT & STATIC PRESSURE CHARACTERISTICS 1 PLFY-P12 · P18 · P24 · P30NBMU-E(R1)

Multifunction casement + High efficiency filter

Multifunction casement + Standard filter

10-2)]	50(20)
	0
[Pa(in.W.G.%
	-50(-20)									2 - inlet
pressure	-150(-60)
	-100(-40)
Static
	-200(-80)						1 - inlet
	0		1	2	3		4			5
				50	100		150
	Taking air into the unit Air flow rate
-2)]	50(20)
[Pa(in.W.G.%10	0
	-50(-20)
pressure
	-150(-60)
	-100(-40)
Static	-200(-80)
	0		1	2	3		4			5
				50	100		150

Air flow rate

2 PLFY-P36NBMU-E(R1)

Multifunction casement + Standard filter

	10-2)]	50(20)
	[Pa(in.W.G.%	0
		-50(-20)
												2 - inlet
	pressure	-150(-60)
	Static	-100(-40)
										1 - inlet
		-200(-80)
																6[CMM]
6[CMM]		0		1		2		3		4		5
200	[CFM]					50		100		150		200						[CFM]

How to read curves

		Curve in the	Duct characteristics
	1		at site
		graphs.
	0		A C
		Q	B
	2
			C A

		E
		Q
		3
		D
	6[CMM]
200	[CFM]	A
		Q
		Qa

Q…Designed amount of fresh air intake <CMM (CFM)> A…Static pressure loss of fresh air

intake duct system with air flow amount Q <Pa (in.W.G.o10-2)> B…Forced static pressure at air condi-

tioner inlet with air flow amount Q <Pa (in.W.G.o10-2)>

C…Static pressure of booster fan with air flow amount Q <Pa (in.W.G.o10-2)> D…Static pressure loss increase amount of fresh air intake duct system for air flow amount Q <Pa (in.W.G.o10-2)> E…Static pressure of indoor unit with air flow amount Q <Pa (in.W.G.o10-2)> Qa…Estimated amount of fresh air intake without D <CMM (CFM)>

Multifunction casement + High efficiency filter

-2)]	50(20)
[Pa(in.W.G.%10	0
	-50(-20)														2 - inlet
pressure	-150(-60)
	-100(-40)
Static
	-200(-80)											1 - inlet
	0						2		4		6			8
					50		100		150		200			250
Taking air into the unit									Air flow rate
-2)]	50(20)
[Pa(in.W.G.%10	0
	-50(-20)
pressure
	-150(-60)
	-100(-40)
Static	-200(-80)
	0						2		4		6			8
					50		100		150		200			250

Air flow rate

Static pressure [Pa(in.W.G.%10-2)]

[CMM]

[CFM]

[CMM]

[CFM]

50(20)
0
-50(-20)
-100(-40)
-150(-60)										2 - inlet
-200(-80)					1 - inlet
0		2			4			6		8			[CMM]
	50	100			150			200		250			[CFM]

Air flow rate

11