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

...

SPLIT-TYPE, HEAT PUMP AIR CONDITIONERS

TECHNICAL & SERVICE MANUAL

R410A / R22

Indoor unit [Model names] [Service Ref.]

PLFY-P12NBMU-E

PLFY-P15NBMU-E

PLFY-P18NBMU-E

PLFY-P24NBMU-E

PLFY-P30NBMU-E

PLFY-P36NBMU-E

PLFY-P PLFY-P PLFY-P PLFY-P PLFY-P PLFY-P PLFY-P PLFY-P PLFY-P PLFY-P PLFY-P

12NBMU-E 12NBMU-ER1 15NBMU-E 15NBMU-ER1 18NBMU-E 18NBMU-ER1 24NBMU-E 24NBMU-ER1 30NBMU-E 30NBMU-ER1 36NBMU-E

November 2008

No. OCH421

REVISED EDITION-A

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.

Model name indication

PLFY-P

INDOOR UNIT

36NBMU-ER1

CONTENTS

1. TECHNICAL CHANGES

2. FEATURES

3. PART NAMES AND FUNCTIONS

4. SPECIFICATIONS

5. 4-WAY AIR FLOW SYSTEM

6. OUTLINES AND DIMENSIONS

7. WIRING DIAGRAM REFRIGERANT SYSTEM DIAGRAM

9. MICROPROCESSOR CONTROL

10. TROUBLESHOOTING

11. DISASSEMBLY PROCEDURE

PARTS CATALOG (OCB421)

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2 2

9 12 13 14 15

TECHNICAL CHANGES

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.

FEATURES

Indoor Unit

Models

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

Cooling capacity / Heating capacity

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.

Medium 2

Medium 1

HighLow

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.

PART NAMES AND FUNCTIONS

Indoor unit

Air outlet

Liquid pipe

Gas pipe

i-see sensor (option)

Vane

Wired remote controller

Drain pipe

Filter

Air intake (Intake grille)

Operation Section

Temperature setting buttons

Down

Timer Menu button (Monitor/Set button)

Mode button (Return button)

Set Time buttons

Back

Ahead

Timer On/Off button (Set Day button)

Opening the lid

TEMP.

BACK DAY

MONITOR/SET

PAR-21MAA

CLOCK

ON/OFF

FILTER

CHECK

OPERATION

Built-in temperature sensor

CLEAR

TEST

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

Wired remote controller

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 prohibited 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.

TIME SUN MON TUE WED THU FRI SAT TIMER

AFTER

ERROR CODE

°F°C

AFTER

°F°C

ONLY1Hr.

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 46

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.

OFF

FUNCTION

FILTER

WEEKLY

SIMPLE

AUTO OFF

or 102F or more.

“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.

SPECIFICATIONS

4-1. SPECIFICATIONS

Model

Power source Cooling capacity (Nominal)

Heating capacity (Nominal )

External finish External dimension H

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

Optional parts

Remark

Power input Current input

W × D

Model External finish Dimension

W × D

H Net weight

Type x Quantity External static press.

Motor type Motor output Driving mechanism Airflow rate (Low-Mid2-

Mid1-High)

Liquid

Gas

Document Accessory

Air outlet shutter plate High efficiency filterelement Multi-function casement

(R410A)

(R22)

(R410A)

(R22)

BTU/h

kW kW A Btu/h kcal/h kW A

in. mm Ibs (kg)

in. mm

Ibs (kg)

in.WG Pa

cfm

/min L / s

dB <A> dB <A> dB <A>

in. (mm)

PLFY-P12NBMU-E

PLFY-P12NBMU-ER1

12,000

3.5

0.03

0.22

13,500

4.0

0.02

0.14

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

49 (22) 49 (22) 51 (23)

PLP-40BAU PLP-40BAU PLP-40BAU

1-3/8 × 37-13/32 × 37-13/32

950 × 950

13 (6) 13 (6) 13 (6)

0.000 (208V) 0.000 (208V) 0.000 (208V) 0

0.000 (230V) 0

0.050

388 - 424 - 459 - 494

11.0 - 12.0 - 13.0 - 14.0 183 - 200 - 217 - 233

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

— —

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

1/4 (6.35) Flare 1/4 (6.35) Flare

1/2 (12.7) Flare 1/2 (12.7) Flare

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

PAC-SH51SP-E PAC-SH59KF-E PAC-SH53TM-E

PLFY-P15NBMU-E

PLFY-P15NBMU-ER1

1-phase 208-230V 60Hz

15,000

4.4

0.04

0.29

17,000

5.0

0.03

0.22

Galvanized steel sheet

258× 840 × 840 258× 840 × 840

MUNSELL (6.4Y 8.9/0.4)

1-3/8 × 37-13/32 × 37-13/32

35× 950 × 950

Cross fin

Turbo fan

0.000 (230V)

424 - 459 - 494 - 565

12.0 - 13.0 - 14.0 - 16.0 200 - 217 - 233 - 267

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

R410A, R22 CITY MULTI

1/4 (6.35) Flare 1/4 (6.35) Flare

1/2 (12.7) Flare 1/2 (12.7) Flare

Installation Manual, Instruction Book

PAC-SH51SP-E PAC-SH59KF-E PAC-SH53TM-E

DC motor

0.050

Direct-drive

— —

Fuse

LEV

1Turbo fan × 1 Turbo fan × 1

PLFY-P18NBMU-E

PLFY-P18NBMU-ER1

18,000

5.3

0.05

0.36

20,000

5.9

0.04

0.29

1-3/8 × 37-13/32 × 37-13/32

35× 950 × 950

0.000 (230V) 0

0.050

494 - 530 - 565 - 636

14.0 - 15.0 - 16.0 - 18.0 233 - 250 - 267 - 300

28 - 29 - 30- 32 (208-230V)

— —

1/4 (6.35) Flare 3/8 (9.52) Flare

1/2 (12.7) Flare 5/8 (15.88) Flare

PAC-SH51SP-E

PAC-SH59KF-E

PAC-SH53TM-E

Installation

*1 Nominal cooling conditions Note: *2 Nominal heating conditions

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

(26.7degC D.B. / 19.4degC W.B.)

Outdoor : 95degF D.B. 47degF D.B. / 43degF W.B.

(35degC D.B.) (8.3degC D.B. / 6.1degC W.B.)

Pipe length : 25 ft. (7.6 m) 25 ft. (7.6 m)

Level difference : 0 ft. (0 m) 0 ft. (0 m)

*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.

70degF D.B. (21.1degC D.B.)

Unit converter

kcal/h = kW × 860 BTU/h = kW × 3,412

cfm = m

/min × 35.31

lbs = kg/0.4536

*Above specification data is subject to rounding variation.

Model

Power source Cooling capacity (Nominal)

Power input Current input

Heating capacity (Nominal )

Power input Current input

External finish External dimension H × W × D

Net weight Decoration panel

Model External finish Dimension H × W × D

Net weight Heat exchanger FAN

Type × Quantity

External

static press.

Motor type

Motor output

Driving mechanism

Airflow rate

(Low-Mid2-

Mid1-High)

Noise level (Low-Mid2-Mid1-High) (measured in anechoic room)

Insulation material Air filter Protection device Refrigerant control device Connectable outdoor unit Diameter of

Liquid

(R410A) refrigerant pipe (O.D.)

Gas

(R410A)

Field drain pipe size

Standard attachment

Optional parts

Document Accessory

Air outlet shutter plate High efficiency filterelement Multi-function casement

Remark

(R22)

BTU/h

kW kW A

Btu/h

kcal/h kW A

in. mm Ibs (kg)

in. mm

Ibs (kg)

in.WG Pa

cfm

/min

m L/s

dB <A> dB <A> dB <A>

in. (mm)

PLFY-P24NBMU-E

PLFY-P24NBMU-ER1

24,000

7.0

0.06

0.43

27,000

7.9

0.05

0.36

10-3/16× 33-3/32 × 33-3/32

258 × 840 × 840

51 (23)

PLP-40BAU

1-3/8× 37-13/32 × 37-13/32

35 × 950 × 950

13 (6)

0.000 (208V) 0

0.000 (230V) 0

0.050

530 - 565 - 636 - 706

15.0 - 16.0 - 18.0 -20.0 250 - 267 - 300 - 333

28 - 30 - 32 - 34 (208-230V)

— —

3/8 (9.52) Flare 3/8 (9.52) Flare

5/8 (15.88) Flare 5/8 (15.88) Flare

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

PAC-SH51SP-E

PAC-SH59KF-E

PAC-SH53TM-E

PLFY-P30NBMU-E

PLFY-P30NBMU-ER1

1-phase 208-230V 60Hz

30,000

8.8

0.07

0.51

34,000

10.0

0.06

0.43

Galvanized steel sheet

10-3/16× 33-3/32 × 33-3/32

258 × 840 × 840

51 (23)

PLP-40BAU

MUNSELL (6.4Y 8.9/0.4)

1-3/8× 37-13/32 × 37-13/32

35 × 950 × 950

13 (6)

Cross fin

0.000 (208V) 0

0.000 (230V) 0

DC motor

0.050

Direct-drive

565 - 636 - 706 - 777

16.0 - 18.0 - 20.0 - 22.0 267 - 300 - 333 - 367

30 - 32 - 35 - 37 (208-230V)

— —

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

Fuse

LEV

R410A, R22 CITY MULTI

3/8 (9.52) Flare 3/8 (9.52) Flare

5/8 (15.88) Flare 5/8 (15.88) Flare

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

Installation Manual, Instruction Book

PAC-SH51SP-E PAC-SH59KF-E PAC-SH53TM-E

PLFY-P36NBMU-E

PLFY-P36NBMU-ER1

36,000

10.5

0.16

1.07

40,000

11. 7

0.15

1.00

11-3/4 × 33-3/32 × 33-3/32

298 × 840 × 840

60 (27)

PLP-40BAU

1-3/8× 37-13/32 × 37-13/32

35 × 950 × 950

13 (6)

Turbo fan × 1 Turbo fan × 1 Turbo fan × 1

0.000 (208V) 0

0.000 (230V) 0

0.120

777 - 883 - 989 - 1,059

22.0 - 25.0 - 28.0 - 30.0 367 - 417 - 467 - 500

35 - 38 - 41 - 43 (208-230V)

— —

3/8 (9.52) Flare 3/8 (9.52) Flare

5/8 (15.88) Flare 3/4 (19.05) Flare

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

PAC-SH51SP-E

PAC-SH59KF-E

PAC-SH53TM-E

Installation

Details on foundation work, duct work, insulation work, electrical wiring, power source switch, and other items shall be referred to the Installation Manual.

*1 Nominal cooling conditions Note: *2 Nominal heating conditions

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

(26.7degC D.B. / 19.4degC W.B.)

70degF D.B. (21.1degC D.B.)

Outdoor : 95degF D.B. 47degF D.B. / 43degF W.B.

(35degC D.B.) (8.3degC D.B. / 6.1degC W.B.)

Pipe length : 25 ft. (7.6 m) 25 ft. (7.6 m)

Level difference : 0 ft. (0 m) 0 ft. (0 m)

*Due to continuing improvement, above specification may be subject to change without notice.

Unit converter

kcal/h = kW × 860 BTU/h = kW × 3,412

cfm = m

/min × 35.31

lbs = kg/0.4536

*Above specification data is subject to rounding variation.

4-2. SOUND LEVEL

PLFY-P-NBMU-E

* Measured in anechoic room.

4-3. NC CURVES

5 ft (1.5m)

Measurement location

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

Sound level at anechoic room : Low-

Sound level dB (A)

27-28-29-31

27-28-30-31

28-29-30-32

28-30-32-34

30-32-35-37

35-38-41-43

Mid2-Mid1-High

PLFY-P12NBMU-E PLFY-P12NBMU-ER1

External static pressure : 0Pa

PLFY-P15NBMU-E PLFY-P15NBMU-ER1

External static pressure : 0Pa

PLFY-P18NBMU-E PLFY-P18NBMU-ER1

External static pressure : 0Pa

Power source : 208,230V, 60Hz Power source : 208,230V, 60Hz Power source : 208,230V, 60Hz

High 60Hz

70.0

65.0

60.0

55.0

50.0

45.0

40.0

35.0

30.0

25.0

20.0 Approximate minimum

audible limit on

15.0 continuous noise

Octave band pressure level (dB) 0dB=20Pa

10.0

63 125 250 500 1k 2k 4k 8k

Octave band center frequencies (Hz)

Low 60Hz

PLFY-P24NBMU-E PLFY-P24NBMU-ER1

External static pressure : 0Pa Power source : 208,230V, 60Hz Power source : 208,230V, 60Hz

High 60Hz

70.0

65.0

60.0

55.0

50.0

45.0

40.0

35.0

30.0

25.0

20.0

Approximate minimum audible limit on

15.0

continuous noise

Octave band pressure level (dB) 0dB=20Pa

10.0

63 125 250 500 1k 2k 4k 8k

Octave band center frequencies (Hz)

Low 60Hz

Middle1 60Hz Middle2 60Hz

70.0

65.0

NC-60

NC-50

NC-40

NC-30

NC-20

60.0

55.0

50.0

45.0

40.0

35.0

30.0

25.0

20.0 Approximate minimum

audible limit on

15.0 continuous noise

Octave band pressure level (dB) 0dB=20Pa

10.0

63 125 250 500 1k 2k 4k 8k

Octave band center frequencies (Hz)

PLFY-P30NBMU-E PLFY-P30NBMU-ER1

External static pressure : 0Pa Power source : 208,230V, 60Hz

70.0

65.0

NC-60

NC-50

NC-40

NC-30

NC-20

60.0

55.0

50.0

45.0

40.0

35.0

30.0

25.0

20.0

Approximate minimum audible limit on

15.0

continuous noise

Octave band pressure level (dB) 0dB=20Pa

10.0

63 125 250 500 1k 2k 4k 8k

Octave band center frequencies (Hz)

High 60Hz Low 60Hz

Middle1 60Hz Middle2 60Hz

70.0

65.0

NC-60

NC-50

NC-40

NC-30

NC-20

60.0

55.0

50.0

45.0

40.0

35.0

30.0

25.0

20.0 Approximate minimum

audible limit on

15.0 continuous noise

Octave band pressure level (dB) 0dB=20Pa

10.0

63 125 250 500 1k 2k 4k 8k

Octave band center frequencies (Hz)

PLFY-P36NBMU-E PLFY-P36NBMU-ER1

External static pressure : 0Pa

70.0

65.0

NC-60

NC-50

NC-40

NC-30

NC-20

60.0

55.0

50.0

45.0

40.0

35.0

30.0

25.0

20.0 Approximate minimum audible limit on

15.0 continuous noise

Octave band pressure level (dB) 0dB=20Pa

10.0

63 125 250 500 1k 2k 4k 8k

Octave band center frequencies (Hz)

High 60Hz Low 60Hz

Middle1 60Hz Middle2 60Hz

NC-60

NC-50

NC-40

NC-30

NC-20

NC-60

NC-50

NC-40

NC-30

NC-20

4-4. ELECTRICAL PARTS SPECIFICATIONS

Service Ref.

Parts name

Room temperature thermistor

Liquid pipe thermistor

Gas pipe thermistor

Fuse (Indoor controller board)

Fan motor

Vane motor

Drain-up mechanism

Drain float swich

Linear expansion valve

Power supply terminal block

Transmission terminal block

MA remote controller terminal block

Symbol

TH21

TH22

TH23

FUSE

LEV

TB2

TB5

TB15

PLFY-P12NBMU-E

PLFY-P12NBMU-ER1

DC12V Stepping motor drive port dimension :3.2 (0~2000pulse)

PLFY-P15NBMU-E

PLFY-P15NBMU-ER1

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

PLFY-P18NBMU-E

PLFY-P18NBMU-ER1

8-pole OUTPUT 50W

EDM-40YGME

PLFY-P24NBMU-E

PLFY-P24NBMU-ER1

250V 6.3A

MSBPC20M04

DC12V 300

PLD-12230ME-1

INPUT 12/10.8W 241/Hr

Open/short detection

(L1, L2, GR) 330V 30A

(M1, M2, S) 250V 20A

(1, 2) 250V 10A



/phase

PLFY-P30NBMU-E

PLFY-P30NBMU-ER1

DC12V Stepping motor drive port

dimension :

PLFY-P36NBMU-E PLFY-P36NBMU-ER1

8-pole OUTPUT,

5.2

(0~2000pulse)

EDM-80YGME

120W

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.

4-direction<Table 1> 3-direction 2-direction

Pattern 1 Initial setting Pattern 4 One air outlet

fully closed

Pattern 6 2 air outlet

fully closed

pattern

Blowout direction

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

SWB

SWA

ON OFF

12345678910

SW12

(10ths DIGIT)

SW1

SW11

(1s DIGIT)

2 1

SWC

CN82

SW14

(BRANCH No.)

CN43

PLFY-P12·P15·P18·P24·P30NBMU-E(R1)



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

SWB

4 direction



3 direction



2 direction



SWA

PLFY-P36NBMU-E(R1)



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

SWB

4 direction



3 direction



2 direction



SWA





High ceiling

3.5m, 11.5ft





High ceiling

4.5m, 14.8ft

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.

Unit : inch(mm)

Fresh air intake hole



Refrigerant pipe

Indoor unit

Branch duct hole



Drain pipe

:6-7/8 (:175) burring hole pitch

Branch duct hole diagram (view from either side)

Fresh air intake hole diagram

3-:1/8 (:2.8) burring hole

120

(*158)

6-7/32

3-17/32

3-15/16

(90)

3-17/32

(90)

(100)

13-25/32 (350)

:4-29/32 (:125) burring hole pitch

120

3-:15/16 (:100) cut out hole

Ceiling

3-15/16 (100)

5-1/8 (130)

*6-3/32 (155)

*6-9/16 (167)

14-:1/8 (:2.8) burring hole

: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)

CN51 on indoor controller board

Indoor controller board

Multiple remote controller adapter PAC-SA88HA-E

Connector (5P)

Indoor unit side

CN51

Be sure to secure insulation

Green

CN51

material by tape, etc.

Red

Brown

Multiple remote controller adapter PAC-SA88HA-E

Yellow

Orange

Installation at site

Be sure to secure insulation material by tape, etc.

Distance between indoor controller board and relay must be within 10m (33ft).

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

50(20)

)]

-2

-50(-20)

-100(-40)

-150(-60)

Static pressure [Pa(in.W.G.%10

-200(-80) 012

Taking air into the unit

50(20)

)]

-2

-50(-20)

-100(-40)

-150(-60)

Static pressure [Pa(in.W.G.%10

-200(-80) 012

50 100 150 200

Air flow rate

2 PLFY-P36NBMU-E(R1)

2 - inlet

1 - inlet

[CMM]

345

3456

[CFM]

[CMM]

[CFM]

50(20)

)]

-2

-50(-20)

-100(-40)

-150(-60)

Static pressure [Pa(in.W.G.%10

-200(-80) 012

How to read curves

Curve in the

graphs.

2 - inlet

1 - inlet

50 100 150 200

Duct characteristics at site

345

Q…Designed amount of fresh air intake

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

C…Static pressure of booster fan with air

flow amount Q <Pa (in.W.G.o10

D…Static pressure loss increase amount

of fresh air intake duct system for air flow amount Q <Pa (in.W.G.o10

E…Static pressure of indoor unit with air

flow amount Q <Pa (in.W.G.o10

Qa…Estimated amount of fresh air

intake without D <CMM (CFM)>

Multifunction casement + Standard filter Multifunction casement + High efficiency filter

[CMM]

[CFM]

-2

50(20)

)]

-2

0 0

-50(-20)

-100(-40)

-150(-60)

Static pressure [Pa(in.W.G.%10

-200(-80) 02

50 100 150 200 250

Taking air into the unit

50(20)

)]

-2

-50(-20)

-100(-40)

-150(-60)

Static pressure [Pa(in.W.G.%10

-200(-80) 02

50 100 150 200 250

50(20)

)]

-2

-50(-20)

2 - inlet

1 - inlet

Air flow rate

[CMM]

[CFM]

[CMM]

[CFM]

-100(-40)

-150(-60)

Static pressure [Pa(in.W.G.%10

-200(-80)

1 - inlet

50 100 150 200 250

Air flow rate

2 - inlet

[CMM]

[CFM]

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