Mitsubishi Electric CITY MULTI PMFY-P06NBMU-E Manuale operativo

SPLIT-TYPE, HEAT PUMP AIR CONDITIONERS

TECHNICAL & SERVICE MANUAL

[Models]

PMFY-P06NBMU-E

PMFY-P08NBMU-E

PMFY-P12NBMU-E

PMFY-P15NBMU-E

No. OC341

INDOOR UNIT

CONTENTS

1. FEATURES ···········································2

2. PART NAMES AND FUNCTIONS········3

3. SPECIFICATION···································5

4. OUTLINES AND DIMENSIONS············9

5. WIRING DIAGRAM·····························10

REFRIGERANT SYSTEM DIAGRAM

····11

7. MICROPROCESSOR CONTROL·······12

8. TROUBLESHOOTING························19

9. DISASSEMBLY PROCEDURE···········26

10. PARTS LIST········································29

CUS

June 2005

R410A / R22

OC341--1new.qxp 05.6.1 5:16 PM Page 1

1FEATURES

1. Fresh Air Intake

Air recycled indefinitely can become stale and stagnant with air quality suffering significantly. Fresh air is the

answer and it is for this reason that the PMFY- series takes in air directly from outdoors. This fresh air intake

allows you to enjoy the comfort of crisp, refreshing air in the confines of your living or working space.

2. Light and Compact

The main unit weighs a measly 31 lb. and the panel a mere 7 lb. This makes the PMFY- series one of the lightest

in the industry. The unit size is also quite small, having been standardised to a strikingly compact 33-5/8 inch.

All of this make the chore of installation and maintenance that much simpler and easier

Models Cooling capacity / Heating capacity

PMFY-P06NBMU-E 6,000 / 6,700 Btu/h

PMFY-P08NBMU-E 8,000 / 9,000 Btu/h

PMFY-P12NBMU-E 12,000 / 13,500 Btu/h

PMFY-P15NBMU-E 15,000 / 17,000 Btu/h

Indoor Unit

OC341--1new.qxp 05.6.1 5:16 PM Page 2

PART NAMES AND FUNCTIONS

● Remote controller

Once the controls are set, the same operation mode can be repeated by simply pressing the ON/OFF button.

● Operation buttons

Guide vane

Air flow can be changed horizontally

by moving the Guide vane to the left or right.

Air intake

Returns air from room.

Filters

Remove dust and pollutants

from return air.

Auto Air Swing Vane

Disperses airflow up and

down and adjusts the angle

of airflow direction.

Horizontal Air Outlet

PAR-21MAA

ON/OFF

FILTER

CHECK

OPERATION

CLEAR

TEST

TEMP.

BACK DAY

MONITOR/SET

CLOCK

ON/OFF

Set Temperature 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

door.

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 preceding operation

number.

Ventilation button

(Operation button)

To next operation number.

Note : This figure is PAR-21MAA. Refer to each remote controller manual for the details.

● Indoor Unit

OC341--1new.qxp 05.6.1 5:16 PM Page 3

Caution

●Only the Power on indicator lights when the unit is stopped and power supplied to the unit.

●If you press a button for a feature that is not installed at the indoor unit, the remote controller will display the “Not Available”

message.

●When power is turned ON for the first time, it is normal that “PLEASE WAIT” is displayed on the room temperature indica-

tion (For max. 2minutes). Please wait until this “PLEASE WAIT” indication disappear then start the operation.

●Display

For purposes of this explanation,

all parts of the display are shown

as lit. During actual operation, only

the relevant items will be lit.

˚F˚C

ERROR CODE

AFTER

TIMER

TIME SUN MON TUE WED THU FRI SAT

OFF

AFTER

FILTER

FUNCTION

ONLY1Hr.

WEEKLY

SIMPLE

AUTO OFF

Identifies the current operation

Shows the operating mode, etc.

* Multilanguage display is sup-

ported.

“Centrally Controlled” indicator

Indicates that operation of the re-

mote 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, shows the time

remaining.

“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

Comes 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

The indicator shows the direc-

tion of the outcoming airflow.

“One Hour Only” indicator

Displayed if the airflow is set to

weak and downward during COOL

or DRY mode. (Operation varies

according to model.)

The indicator goes off after one

hour, at which time the airflow di-

rection also changes.

Room Temperature display

Shows the room temperature.

Louver display

Indicates the action of the swing

louver. Does not appear if the

louver is stationary.

(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.

OC341--1new.qxp 05.6.1 5:16 PM Page 4

3SPECIFICATION

3-1. Specification

Note 1. Rating conditions

Cooling: Indoor: D.B. 80°F W.B. 67°F

outdoor: D.B. 95°F W.B. 75°F

Heating: Indoor: D.B. 70°F

outdoor: D.B. 47°F W.B. 43°F

Note 2. The number indicated in < > is just for the grille.

W3. Air flow and the noise level are indicated as Low - Medium2 - Medium1 - High.

Item

V·Hz

Btu/h

—

in.

—

CFM

in W.G.

—

[in.

lb.

Cooling capacity

Power

Heat exchanger

Insulator

Air filter

Fan ✕No

Air flow W3

Pipe

dimensions

Unit drain pipe size

Noise level W3

Product weight

Exterior

(munsell symbol)

Fan motor

output

External

static pressure

Liquid

side

Gas

side

Heating capacity

Dimensions

Height

Width

Depth

Electric characteristic

Input

Cooling

Heating

Cooling

Heating

Current

PMFY-P06NBMU-E PMFY-P08NBMU-E PMFY-P12NBMU-E PMFY-P15NBMU-E

Single phase 208-230V 60Hz

6,000

6,700

0.042

0.20

8,000

9,000

0.042

0.20

12,000

13,500

0.044

0.21

15,000

17,000

0.054

0.26

250-280-300-320

32-34-36-37

230-250-280-300

27-30-33-35

270-300-340-370

33-35-37-39

Unit : Galvanized sheets · Standard grills : ABS resin acrylic coating Munsell<0.98Y 8.99/0.63>

9-1/16<1-3/16>

31-15/16<39-3/8>

15-9/16<18-1/2>

Cross fin

Line flow fan ✕1

0.028

Polyethylene sheet

PP honey comb fabric

1/2"

1/4"

1" I.D. (PVC pipe VP-20 connectable)

31<7>

OC341--1new.qxp 05.6.1 5:16 PM Page 5

3-2. Electrical parts specifications

Parts name

Model Symbol

TH21

TH22

TH23

FUSE

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"

250V 6A

Thermistor resistance 30_F/6.3k", 50_F/3.9k", 70_F/2.5k", 80_F/2.0k", 90_F/1.6k", 100_F/1.3k"

(L1, L2, GR) Rated to 330V 30A

(M1, M2, S) Rated to 250V 20A

(1,2) Rated to 250V 10A

Liquid pipe thermistor

Gas pipe thermistor

Drain pump

Drain sensor

Linear expansion valve

PMFY-P06NBMU-E PMFY-P08NBMU-E PMFY-P12NBMU-E PMFY-P15NBMU-E

Room temperature

thermistor

Fuse

(Indoor controller board)

Fan motor

Vane motor

Power supply

terminal block

Transmission

terminal block

DC Brushless Motor

8-pole OUTPUT 28W

PN0H28-MB

MSFJC 20M23

12V/380

PJV-1063

208-240V 50/60Hz

DC12V Stepping motor drive

port [

3.2

(0~2000pulse)

EDM-40YGME

MA-remote controller

terminal block

Note : Refer to WIRING DIAGRAM for the supplied voltage.

OC341--1new.qxp 05.6.1 5:16 PM Page 6

3-3. Air capacity taken from outside

PMFY-P06NBMU-E

PMFY-P08NBMU-E

PMFY-P12NBMU-E

PMFY-P15NBMU-E

300 CFM

320 CFM

370 CFM

60 CFM

64 CFM

74 CFM

Air flow

(Hi) Air capacity taken from outside

Service Ref.

PMFY-P·NBMU-E series are capable of taking air from outside.

When taking air from outside, the duct fan must be used.

The air capacity should be 20% or less of the air flow SPEC(Hi).

Q…Planned amount of fresh air intake

A…Static pressure loss of fresh air

intake duct system with air flow

amount Q

B…Forced static pressure at air condi-

tioner inlet with air flow amount Q

C…Static pressure of booster fan with

air flow amount Q

D…Static pressure loss increase

amount of fresh air intake dust

system for air flow amount Q

<in. W.G>

E…Static pressure of indoor unit with

air flow amount Q

Qa…Estimated amount of fresh air

intake with out D <CFM>

<CFM>

<in. W.G>

(Knock out)

4-{1/8

Fresh air intake hole (Knock out)

Fresh air intake hole

90-

{4-

13/16

{

3-15/16

4-1/4

9-13/16 11-3/8

(Unit:inch)

Installation at site

CN51

Multiple remote

controller adapter

PAC-SA88HA-E

Indoor controller board

Distance between indoor

controller board and relay

must be within 33 feet.

Be sure to secure insulation

material by tape and such

5Green

Yellow

Orange

Connector (5P)

Package side Multiple remote

controller adapter

PAC-SA88HA-E Be sure to secure insulation

material by tape and such

CN51

indoor unit

board Red

Brown

Curve in the

right graphs.

Duct characteristics

at site

Interlocking operation method with duct fan

(Booster fan)

●Whenever the indoor unit is operating, the duct fan must

also operate.

(1)Connect the optional multiple remote controller adaptor

(PAC-SA88HA-E) to the connector CN51 on the indoor

controller board.

(2)Power the relay by connecting the 12V DC coil terminals

from the Yellow and Orange connector lines.

(w)Use a relay under 1W.

MB: Electromagnetic switch power relay for duct fan.

X: Auxiliary relay (12V DC LY-1F)

How to read curves

0.2

Static pressure (in.W.G.)

0.1

-0.1

-0.2

-0.3

-0.4 010

Air flow (CFM)

Characteristic diagram of air capacity taken from outside of PMFY-P·NBMU-E

30 40 50 60 70 80

2 intake

1 intake

OC341--1new.qxp 05.6.1 5:16 PM Page 7

3-4. NOISE CRITERION CURVES

10 63 125 250 500 1000 2000 4000 8000

APPROXIMATE THRESHOLD OF HEARING

FOR CONTINUOUS NOISE

NC-60

NC-50

NC-40

NC-30

NC-20

NC-70

OCTAVE BAND SOUND PRESSURE LEVEL, dB (0 dB = 0.0002 µbar)

BAND CENTER FREQUENCIES, Hz

PMFY-P06NBMU-E High

NOTCH

Medium1

Medium2

Low

SPL(dB)

LINE

10 63 125 250 500 1000 2000 4000 8000

APPROXIMATE

THRESHOLD OF

HEARING FOR

CONTINUOUS

NOISE

NC-60

NC-50

NC-40

NC-30

NC-20

NC-70

OCTAVE BAND SOUND PRESSURE LEVEL, dB (0 dB = 0.0002 µbar)

BAND CENTER FREQUENCIES, Hz

PMFY-P08NBMU-E

PMFY-P12NBMU-E High

NOTCH

Medium1

Medium2

Low

SPL(dB)

LINE

10 63 125 250 500 1000 2000 4000 8000

APPROXIMATE

THRESHOLD OF

HEARING FOR

CONTINUOUS

NOISE

NC-60

NC-50

NC-40

NC-30

NC-20

NC-70

OCTAVE BAND SOUND PRESSURE LEVEL, dB (0 dB = 0.0002 µbar)

BAND CENTER FREQUENCIES, Hz

PMFY-P15NBMU-E High

NOTCH

Medium1

Medium2

Low

SPL(dB)

LINE

UNIT

5ft

MICROPHONE

CEILING

OC341--1new.qxp 05.6.1 5:16 PM Page 8

4OUTLINES AND DIMENSIONS

Details of fresh air intake hole

Knock out

4-{1/8(2.8) Burring hole

Fresh air intake hole

4-5/16 (110)

9-1/16(230)

9-1/2

(235) or more

4-5/16

(110)

suspension bolt(M10 or W 3/8)

Panel(grille):PMP-40BM

Installation space required around indoor unit

mounting plate

6-15/16(176)

Panel(grille):PMP-40BM

Lower view

2-3/8(60) 1-9/16(40)

7-7/8(200)

23-5/8(600)

7-7/8(200)

Top

Air outlet(lower)

1-13/18(46)

1-11/16(43)

13/16(20) 13/16(20)

2-1/16(53)

2-11/16(69)

9-3/8(247)

1-3/16(30)

Right side

outer line of grille

center of unit

29-7/8(759)

1-1/32(26) 31-15/18(811)suspension bolt pitch2-15/18(74.5) 37-13-16(960) ceiling opening13/16(20)

1-1/32(26)

2-15/18(74.5)

13/16(20)

39-3/8(1000)outer side of grille

11/16(17.5) 11/16(17.5)

1-25/32(45)

13-3/8(340) suspension bolt pitch

1-25/32(45)

16-15/16(430)

ceiling opening

18-1/2(470)

outer side of grille

13/16(20)

Terminal block for power supply

Terminal block for transmission

31-15/16(812)

3-3/8(96)

Left side

Front drain pan

elect box

Drainage pipe

PVC pipe:

VP-20[I.D.{31/32"(25)]

Refrigerant pipe(gas)

O.D.{1/2"(12.7)

Refrigerant

pipe(liquid)

O.D.{1/4"(6.35)

ceiling panel

drain pan ceiling

panel

O.D.{1/2"({12.7)

PVC pipe:VP-20[I.D.{31/32"({25)]

O.D.{1/4"({6.35)

O.D.{1-11/16({43)

Drainage pipingGas pipe

Liquid pipe

pipe cover

Refrigerant

piping

39-3/8(1000) outer side of grille

18-1/2(470) outer side of grille

{1-31/32(50)

2-3/16(56)

9-1/16(230)

3-3/8(96)

13/16(20)

13/32(10)

11-7/8(302)

10(254)

7-13/16(198)

5-9/16(141)

29-7/8(759)

15-9/16(395)

90-

{4-13/6(122)

{3-15/16(

100)

4-1/4

(108)

9-13/16(250) 11-3/8(288.5)

same line

Terminal block for

remote-controller

PMFY-P06NBMU-E

PMFY-P08NBMU-E

PMFY-P12NBMU-E

PMFY-P15NBMU-E

Unit : in. (mm)

OC341--1new.qxp 05.6.1 5:16 PM Page 9

5WIRING DIAGRAM

Note

1.At servicing for outdoor unit, always follow the wiring diagram of outdoor unit.

2.In case of using MA-Remote controller, please connect to TB15.

(Remote controller wire is non-polar.)

3.In case of using M-NET, please connect to TB5.

(Transmission line is non-polar.)

4.Symbol [S] of TB5 is the shield wire connection.

5.Symbols used in wiring diagram above are, : terminal block, :connecter.

6.The setting of the SW2, SW3 dip switches differs in the capacity for the detail, refer to the fig : w1.

7.Please set the switch SW5 according to the power supply voltage.

CN51

CN52

SW2

SW3

SW4

A.B Address board

SW1

SW5

SW11

SW12

Mode selection

Voltage selection

Address setting 1st digit

Address setting 2nd digit

SW14 Connection No.

Centrally control

Remote Indication

Switch Switch

Capacity code

Mode selection

Model selection

ZNR Varistor

X1 Aux.relay Drain pump

FUSE Fuse (6A / 250V)

LED1 Power supply (I.B)

LED2 Power supply (I.B)

T Transformer TH21

Thermistor Room temp. detection

(32

/15k", 77

/5.4k")

Pipe temp. detection / Liquid

(32

/15k", 77

/5.4k")

Pipe temp. detection / Gas

(32

1/15k", 77

/5.4k")

LEV Linear expansion valve

TH22

TH23Fan motor (with inner thermo)

Vane motor

TB15 MA-Remote Controller

[Legend]

Symbol Name

I.B Indoor controller board

CN25

CN27

CN32

Connector Humidifier

Damper

Remote switch

Symbol Name Symbol Name

DP Drain sensor

Drain water lifting-up mech.

TB2

TB5 Transmission

Terminal

block Power supply

Models

P06

P08

P12

P15

SW2

123456

OFF

123456

OFF

123456

OFF

123456

OFF

SW3

1234567

OFF

1234567

OFF

123456

OFF

123456

OFF

Mark Meaning Function

Power supply for

MA-Remote controller

Main power supply (Indoor unit:208-230V)

Power on ➝Iamp is lit

LED on indoor board for service

LED1

Main power supply

Power supply for MA-Remote controller

on ➝Iamp is lit

LED2

MF FAN

(

WHT

)

LED2

LED1

1(BLU)

(M-NET)

CN2M

BLU

TB5

TB2

PULL BOX

FUSE(15A)

BREAKER

(15A)

(

SHIELD)

TO OUTDOOR UNIT

BC CONTROLLER

REMOTE CONTROLLER

DC24-30V

1CN3A

(BLU)

ORN

TB15

TO MA-REMOTE

CONTROLLER

DC8.7-13V

POWER SUPPLY

~ / N 208—230V 60Hz

TO NEXT INDOOR UNIT

3 2 1 (BLK)

GAS

CN29

2 1 (WHT)

LIQUID

CN21

2 1

DS TH23 TH22

(RED)

INTAKE

CN20

(WHT)

LEV

CN60

(GRN)

REMOTE

INDICATION

CN52

2 1 6 5 4 3 2 1

(GRN)

VANE

CN6V

6 5 4 3 2 1 2 1

1 2 3 4 5

TH21

(WHT)

DRAIN

CN31

LEV MV

CN25 2 1

CN27 8

12345678910

SW3

123456

SW2

12345

SW4

OFF

(RED)

ADDRESS

CN81

(RED)

ADDRESS

CN42

(WHT)

REMOTE

SWITCH

CN32

3212 13

(WHT)

CNP

CND

(RED)

FUSE

250V

BRN

RED

ORN

YLW

GRN

BLU

BRN

ORN

YLW

RED

WHT

(WHT)

CENTRALLY

CONTROL

CN51

RED

BLU

GRN / YLW

See fig : w1

8 7 6 5 4 3 2 1

4321

SW14SWC

CONNECTION

No.

SW11

1ST

DIGIT

SW12

2ND

DIGIT

3RD

DIGIT

12345678910

SW1

SW5 230V208V

(RED)

ADDRESS

CN82

(RED)

ADDRESS

CN43

A.B

I.B

<w2>

(w2)Use Copper Supply Wire.

PMFY-P06NBMU-E PMFY-P08NBMU-E

PMFY-P12NBMU-E PMFY-P15NBMU-E

OC341--1new.qxp 05.6.1 5:16 PM Page 10

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