Mitsubishi Electronics OCH461 User Manual

SPLIT-TYPE, HEAT PUMP AIR CONDITIONERS

TECHNICAL & SERVICE MANUAL

R22R410A

April 2009

No. OCH461

Indoor unit
[Model names] [Service Ref.]

PKFY-P06NBMU-E

PKFY-P06NBMU-E

PKFY-P08NBMU-E

PKFY-P08NBMU-E

INDOOR UNIT

Note:

• This manual describes

only service data of the
indoor units.

• RoHS compliant products

have <G> mark on the
spec name plate.

CONTENTS

1. PART NAMES AND FUNCTIONS

2. SPECIFICATION

3. OUTLINES AND DIMENSIONS

4. WIRING DIAGRAM

5. REFRIGERANT SYSTEM DIAGRAM

6. MICROPROCESSOR CONTROL

7. TROUBLESHOOTING

8. DISASSEMBLY PROCEDURE

.....................................

.................................

..........................

.............

..........

..............

..........

...........

2
4
6
7
8

9
14
21

Model name
indication

PARTS CATALOG (OCB461)

1

PART NAMES AND FUNCTIONS

Indoor unit

Air intake

Filter

Grille

Wireless remote controller

display

OPERATION MODE display
Operation mode display indicates which
operation mode is in effect.

display

The vertical direction of air flow is indicated.

display

FAN SPEED display indicates which fan
speed has been s elected.

ON/OFF button

The unit is turned ON and OFF alternately
each time the button is pressed.

FAN SPEED SELECT button

Used to change the fan speed.

MODE SELECT button

Used to switch the operation mode between
cooling, drying, fan, heating and auto mode.

+ In case the outdoor unit is cool only type,

the heating and auto mode are not
available.

CHECK-TEST RUN button

Only press this button to perform an
inspection check or test operation.
Do not use it for normal operation.

VANE CONTROL button

Used to change the air flow

Louver

Vane

Air outlet

CHECK

TEST RUN

display

CHECK and TEST RUN display indicate that
the unit is being checked or test-run.

MODEL SELECT

Blinks when model is selected.

display

CHECK

TEST RUN

MODEL SELECT

NOT AVAILABLE

ON/OFF TEMP

FAN

MODE

CHECK

VAN E

LOUVER

TEST RUN

RESETSET CLOCK

°F
°C

AMPM

AMPM

AUTO STOP

AUTO START

h

min

display

Lights up while the signal is transmitted to
the indoor unit when the button is pressed.

display

SET TEMP. display indicates the set desired
temperature.

CLOCK display

Displays the current time.

TIMER display

Displays when in timer operation or when
setting timer.

“ ” “ ” display

Displays the order of timer operation.

“ ” “ ” display

Displays whether timer is on or off.

button

SET TEMPERATURE button sets any desired
room temperature.

TIMER CONTROL buttons

AUTO STOP (OFF timer): when this switch is
set, the air conditioner will be automatically
stopped at the preset time.
AUTO START (ON timer): when this switch is
set, the air conditioner will be automatically
started at the preset time.

h and min buttons

Buttons used to set the “hour and minute” of
the current time and timer settings.

LOUVER button

Changes left/right airflow direction.

(Not available for this model.)

CLOCK button

RESET button

SET button

2

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.

Operation Section

Temperature setting buttons

Down

Up

Timer Menu button
(Monitor/Set button)

Mode button (Return button)

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

Hr

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 46–102°F.
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.

ON

OFF

FUNCTION

FILTER

WEEKLY

SIMPLE

AUTO OFF

“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.

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

Set Time buttons

Back

Timer On/Off button
(Set Day button)

Opening the
lid

Note:

●

“PLEASE WAIT” message

Ahead

TEMP.

MENU

BACK DAY

MONITOR/SET

PAR-21MAA

CLOCK

ON/OFF

ON/OFF

FILTER

CHECK

OPERATION

Built-in temperature sensor

CLEAR

TEST

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.

33

2

SPECIFICATION

2-1. Specifi cations

Service Ref.

Power source

Cooling capacity
(Nominal)

Power input

Heating capacity
(Nominal )

External finish
External dimension H × W × D

Net weight
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

Field drain pipe size
Standard
attachment

Optional parts

Remarks

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

External heater adapter

Installation

*1

*1

*2

*2

(R410A)

(R22)

(R410A)

(R22)

kW
Btu/h
kW
A
kW
Btu/h
kW
A

mm
in.
kg (lb)

Pa
mmH

2

kW

3

/min

m
L/s
cfm
dB <A>

mm (in.)

mm (in.)

mm (in.)

PKFY-P06NBMU-E

PKFY-P08NBMU-E

1-phase 208/230V 60Hz

1.8

6,000

0.03

0.15

2.0

6,700

0.03

0.15

2.3

8,000

0.03

0.15

2.6

9,000

0.03

0.15

Plastic, MUNSELL (1.0Y 9.2/0.2)

295 × 815 × 225

11-5/8" × 32-1/8" × 8-7/8"

10 (22)

Cross fin (Aluminum fin and copper tube)

Line flow fan × 1

0

O

0

1-phase induction motor

0.008

Direct-driven by motor

4.9 - 5.2 - 5.6 - 5.9
82 - 87 - 93 - 98

170 - 180 - 200 - 210

32 - 33 - 35 -36

4.9 - 5.2 - 5.6 - 5.9
82 - 87 - 93 - 98

170 - 180 - 200 - 210

32 - 33 - 35 -36

Polyethylene sheet

PP honeycomb

Fuse

LEV

R410A, R22 CITY MULTI

ø6.35 (ø1/4")
ø6.35 (ø1/4")
ø12.7 (ø1/2")
ø12.7 (ø1/2")

Flare
Flare
Flare
Flare

ø6.35 (ø1/4")
ø6.35 (ø1/4")
ø12.7 (ø1/2")
ø12.7 (ø1/2")

Flare
Flare
Flare
Flare

I.D. 16mm (5/8")

Installation Manual, Instruction Book

MA remote controller cable

PAC-SA88HA-E

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

Note :

Pipe length :

Level difference :

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

*1 Nominal cooling conditions

Indoor :

Outdoor :

80°FDB/67°FWB (26.7°CDB/19.4°CWB)
95°FDB (
25 ft. (7.6 m)
0 ft (

0 m)

35°CDB)

*2 Nominal heating conditions

70°FDB(21°CDB)
47°FDB/43°FWB (8.3°CDB/6.1°CWB)
25 ft. (7.6 m)
0 ft (0 m)

Unit converter

kcal/h = kW × 860
Btu/h = kW × 3,412

3

cfm = m
lb = kg/0.4536

*Above specification data is
subject to rounding variation.

/min × 35.31

4

2-2. Electrical parts specifi cations

Service Ref.

Parts name

Room temperature
thermistor

Liquid pipe thermistor

Gas pipe thermistor

Fuse
(Indoor controller board)

Fan motor
(with thermal fuse)

Fan motor capacitor

Vane motor
(with limit switch)

Linear expansion valve

Power supply terminal
block

Transmission terminal
block

MA remote controller
terminal block

2-3. Sound levels

Symbol

TH21

TH22

TH23

FUSE

MF

C1

MV

LEV

TB2

TB5

TB15

PKFY-P06NBMU-E PKFY-P08NBMU-E

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 6A

4-Pole Output 8W / PS4N8-KB

1.2 × 440V

MSFBC20 DC12V

DC12V Stepping motor drive

Port :3.2 (0~2000pulse)

(L1, L2, GR) 250V 20A

(M1, M2, S) 250V 20A

(1, 2) 250V 10A

Service Ref.

Sound level at anechoic room : Low-Middle2-Middle1-High

PKFY-P06NBMU-E

PKFY-P08NBMU-E

Sound level dB (A)

32-33-35-36

32-33-35-36

3.3 ft.

Measurement location

* Measured in anechoic room.

2-4. NC curve

(1m)

3.3 ft.
(1m)

PKFY-P06/08NBMU-E

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

70.0

MPa

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

10.0

OCTAVE BAND PRESSURE LEVEL (dB) 0dB = 20

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

OCTAVE BAND CENTER FREQUENCIES(Hz)

High speed
Low speed

NC60

NC50

NC40

NC30

NC20

55

3

OUTLINES AND DIMENSIONS

PKFY-P06NBMU-E
PKFY-P08NBMU-E

Detailed figure dwg (ABC)
(Knockout hole)

2-1/8(54)

31/32(24.4)

3°

5°

13/32(10) 1-25/32(45)

11-5/8(295)

Knockout hole for

R19/32(R15)

left piping

R19/32(R15)

R5/16(R8)

Knockout hole of

45°

remote control wiring

Required space

30-13/16(783)

25-3/16(640)

25-3/16(640)

26-31/32(660)(Drain pipe total 29-29/32(760))

R19/32(R15)

R5/16(R8)

Knockout holt for
under piping

13/32(10)

3/32(2.5)5/8(16)

2-3/8(60mm) or more for
left and left back piping.

32-1/8(815)

Air intake

27-3/8(695)

17-23/32(450)

20-25/32(520)

1-31/32(50)

3-19/32(91.5)1-25/32(45)

Air intake

Air outlet

R5/16(

13/32(10)

1-11/32(34)

4-3/16(106.7)

1/8(3)

Gas pipe

Liquid pipe

R15/32(R12)

R8)

4-1/2(115)

2-3/8

(60)

4-11/32(110)

4-9/16(116)

Knockout hole of
right piping

Knockout hole for
remote control wiring

5/32(4) 1-31/32(50)

3/32(2.5) 5/8(16)

Air intake

3-15/16(100.6)17/32(14)

Air intake
(Direction)

Power supply

Transmission

Address board

Air outlet
(Direction)

8-7/8(225) 3/16(5)

Air intake
(Direction)

2-7/8

(74.6)

1-7/16(37.8)

Air outlet

Air outlet

Address board
Detailed

Unit : inch (mm)

installaion plate

Terminal block

1/4

(7)

Air intake

Address board

Connection No.

Address setting digit

Mode selection

*3 Address board is protected

by a plastic cover.

Remove the screw holding

the cover with screw-driver

at the time of address setting.

Min55/64(22) Min25/32(20)

Installation plate balance point hole

3/16×1-3/8(4.5×35) 4 holes

Installation plate

6-1/4(159)
5-1/4(133)

4-13/16(122.5)

3-27/32(97.5)

3-11/32(85)

2-27/32(72.5)

2-3/8(60)

1-7/8(47.5)

7/8(22.5)

0

19/32(15)

3-17/32(90)

4-1/32(102.5)

4-7/8(124)

8-:5/32(:4.3) holes

12-29/32(328)

16-1/32(407.5)

12-29/32(328)

11-5/8(295)

10-1/4(260)

9-1/4(235)

Min3-15/16(100)

Min3-35/64(90)

Details of installation plate

0

8-27/32(225)

7-15/32(190)

6-3/32(155)

6-1/4(159)

6-7/8(175)

8-1/16(205)

6-11/16(170)

4-23/32(120)

1-3/16(30)

3-11/32(85)

1-3/16(30)

0

13/32(10)

13/32(10)

Knock of hole

12-:1/8(:2.8)holes

4-:11/ 32( :9)holes

3-11/32(85)

1-3/4(45)

1-23/32(44)

1-31/32(50)

Note 1. Use M10 or W3/8 screw for installation plate.
Note 2. Extension piping side.
Note 3. In case of connecting MA-remote controller, please use

MA-remote controller cable in an accessories to the connector.

Min1-31/32(50)

7-3/32(180)

7-15/32(190)

6-3/32(155)

4-23/32(120)

6-7/8(175)

8-1/16(205)

6-11/16(170)

Refrigerart
piping

Drain pipe

11-23/32(298)

10-1/4(260)

8-27/32(225)

3/16×1-15/32(4.5×37) 4 holes
3/16×1-9/16(4.5×40) 4 holes

9-1/4(235)

11-23/32(298)

Piping hole:2-9/16(:65)

Liquid pipe

Gas pipe

16-1/32(407.5)

1/4F(:6.35)

1/2F(:12.7)

6-5/8(168)
5-5/16(135)

4-29/32(125)

4-11/32(110)

1-3/8(35)

13/32(10)
0
1-3/32(27.5)
1-9/16(40)
2-3/32(53)
2-9/16(65)

3-7/16(87)

4-7/16(113)
5-1/32(128)

:5/8(:16) I.D

87-:3/16(:5.1)holes

6

WIRING DIAGRAM4

PKFY-P06NBMU-E PKFY-P08NBMU-E

Legend

Symbol

I.B

CN32
CN51
CN52

Indoor controller board

Connector

Name

Remote switch
Centrally control
Remote indication,
External heater

Capacity code

Mode selection

P. B

SW2

Switch

SW3

Indoor power board

ZNR Varistor

Fuse (6A 250V)

FUSE
F. C

Fan phase control
Capacitor (Fan motor)

C1

M

LEV

W.B

SW2SW1

RU

LED2

LED1

9

CNB

BZ

6

YLW

WHT

ORN

11

CN60

LEV

(WHT)

A.B

SW5

208V 230V

SW1

ON

OFF

1234567891

0

1

9

2

8

3

7

4

6

5

10ths
DIGIT1sDIGIT

Note

0

1

9

8

7

4

6

5

0

2

3

(RED)

ADDRESS

CN43

(RED)

ADDRESS

CN82

SW14SW11SW12

E

D

C

B

BRANCH

No.

4

1

0

1

F

2

3

4

5

6

7

A

8

9

8

1

See Fig.1

4

8

ON

OFF

123456789

I.B

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

2. In case of using MA-remote controller, please connect MA-remote controller cable in an accessory

to the connector . (Remote controller wire is non-polar.)

12

3. In case of using M-NET, please connect to TB5 (Transmission line is non-polar.)

4. Symbols used in wiring diagram above are, : terminal block, : connector

5. The setting of the SW2 dip switches differs in the capacity. For the detail, refer to the Fig. 1.

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

Set SW5 to 230V side when the power supply is 230 volts.

When the power supply is 208 volts, set SW5 to 208V side.

Symbol
MF Fan motor
MV
LEV

TB2
TB5
TH21

TH22

TH23

5

9

BLU

BRN

RED

CN5V
VANE
(BLU)

1515

CN52CN51

SW2SW3

1234

10

Vane motor
Linear expansion valve
Terminal

block
Thermistor

RED

1

WHT
BLU

M

ORN
YLW

5

MV

56

141 8

CN42

ADDRESS

(RED)

CN90

WIRELESS

(WHT)

CN32

91

CN81

ADDRESS

(RED)

13

Name

Power supply

Transmission

Room temp.detection
(32°F/15k

,77°F/5.4k)

Pipe temp.detection/Liquid

(32°F/15k,77°F/5.4k)

Pipe temp.detection/Gas

(32°F/15k,77°F/5.4k)

TH23 TH22

t° t° t°

CN29

GAS

(BLK)

14

CN41

13

CN35M

(BLU)

2

112
CN21

LIQUID

(WHT)

ORN

ORN

13

CN3A
MA­REMOCON

(BLU)

5

CN53M

(RED)

CN20

INTAKE

(RED)

1

LED2

TH21

12

Symbol

A.B

W.B

Address board
SW1
SW5
SW11
SW12
SW14

Switch

Mode selection
Voltage selection
Address setting 1s digit
Address setting 10ths digit
Branch No.

Wireless remote controller board
Receving unit

RU

Buzzer

BZ
LED1 LED(Operation indicator:Green)

(Preparation for heating:Orange)

LED

LED2
SW1

Emergency operation (Heat)
Emergency operation (Cool)

SW2

TO MA-REMOTE
CONTROLLER
DC8.7-13V

M
1~

MF

13

CN35P

(BLU)

LED1

P.B

TO OUTDOOR UNIT
BC CONTROLLER
M-NET REMOTE CONTROLLER
DC24-30V

M1 M2

1

2

12

CN2M

M-NET

(BLU)

5

CN53P
(RED)

1

BLU

FAN

(GRN)

F.C

BLU

TB5

RED

WHT

BLK

146

C1

ZNR

U

CND

(RED)

FUSE

250V

6A

Name

BLU

13

RED

<+>

TB2

L1
L2

GR

GRN /YLW

BREAKER
(16A)

TO NEXT
INDOOR UNIT

POWER SUPPLY
208/230V 60Hz

PULL
BOX

FUSE
(16A)

LED on indoor board for service

Mark Meaning

Main power supply

LED1

Power supply for

LED2

MA-Remote controller

MODELS SW2

P06

ON

OFF

1234

<+ >Use copper supply wires.

Function

Main power supply (indoor unit: 208-230V)
power on lamp is lit

Power supply for MA-Remote controller
on lamp is lit

<Fig. 1>

MODELS SW2

P08

ON

OFF

1234

7

5

REFRIGERANT SYSTEM DIAGRAM

PKFY-P06NBMU-E PKFY-P08NBMU-E

Gas pipe temperature thermistor
TH23

Gas pipe

Item

Gas pipe

Liquid pipe

Heat exchanger

Room temperature thermistor
TH21

Models

Liquid pipe temperature thermistor
TH22

Strainer
(#100mesh)

PKFY-P06/08NBMU-E

{12.7 (1/2”)

{6.35 (1/4”)

Strainer
(#100mesh)

Linear expansion

valve

Strainer
(#100mesh)

Unit: mm(inch)

Flare

Liquid pipe

8

6

MICROPROCESSOR CONTROL

INDOOR UNIT CONTROL
6-1. COOL OPERATION

TIME SUN MON TUE WED THU FRI SAT
TIMER

AFTER

ûF ûC

ONLY1Hr.

TEMP.

MENU

ON/OFF

MONITOR/SET

BACK DAY

PAR-21MAA

CLOCK

Control modes

1. Thermoregulating
function

<How to operate>

ERROR CODE

ûF ûC

ON

OFFHrAFTER

FUNCTION

FILTER

WEEKLY

SIMPLE

AUTO OFF

ON/OFF

Press POWER ON/OFF button.
Press the operation MODE button to display COOL.
Press the TEMP. button to set the desired temperature.

NOTE: The set temperature changes 2°F when the or button is

pressed one time. Cooling 67 to 87°F

FILTER

CHECK

TEST

OPERATION

CLEAR

Control details

1-1. Thermoregulating function (Function to prevent restarting for 3 minutes)

• Room temperature desired temperature + 2°F

• Room temperature desired temperature

···Thermo ON

···Thermo OFF

1-2. Anti-freezing control

Detected condition : When the liquid pipe temp. (TH22) is 32°F or less in 16

minutes from compressors start up, anti-freezing control

starts and the thermo OFF.

Released condition : The timer which prevents reactivating is set for 3 minutes,

and anti-freezing control is cancelled when any one of the

following conditions is satisfied.

Liquid pipe temp. (TH22) turns 50°F or above.

The condition of the thermo OFF has become complete

by thermoregulating, etc.

The operation modes became mode other than COOL.

The operation stopped.

Remarks

2. Fan

3. Vane

(up/down vane change)

By the remote controller setting (switch of 4 speeds)

Type

4 speeds type

Fan speed notch

[Low], [Mid2], [Mid1], [High]

(1) Initial setting: Start at COOL mode and horizontal vane.
(2) Vane position:

Horizontal →Downward A →Downward B →Downward C

→

(3) Restriction of the downward vane setting

When setting the downward vane A, B or C in [Mid] or [Low] of the fan speed

notch, the vane changes to horizontal position after 1 hour have passed.

9

· "ONLY 1 Hr"
appears on the
wired remote
controller.

6-2. DRY OPERATION

TIME SUN MON TUE WED THU FRI SAT
TIMER

AFTER

ûF ûC

ONLY1Hr.

TEMP.

MENU

ON/OFF

BACK DAY

MONITOR/SET

PAR-21MAA

CLOCK

Control modes

1. Thermo regulating
function

<How to operate>

ERROR CODE

ûF ûC

ON

OFFHrAFTER

FUNCTION

FILTER

WEEKLY

SIMPLE

AUTO OFF

ON/OFF

Press POWER ON/OFF button.
Press the operation MODE button to display DRY.
Press the TEMP. button to set the desired temperature.

NOTE: The set temperature changes 2°F when the or button is

pressed one time. Dry 67 to 87°F

FILTER

CHECK

TEST

OPERATION

CLEAR

Control details

1-1. Thermo regulating function (Function to prevent restarting for 3 minutes)
Setting the Dry thermo by the thermo regulating signal and the room
temperature (TH21).
Dry thermo ON Room temperature desired temperature + 2°F
Dry thermo OFF Room temperature desired temperature

Room
temperature

Over 64°F

Less than 64°F

3 min. passed since starting operation

Thermo regulating signal

ON

Room temperature (T1)

83°F > T1 79°F

79°F > T1 75°F

75°F > T1

OFF

Unconditional

Dry thermo OFF

T1 83°F

Dry thermo

ON

time (min)

93

7

5

33

3

Remarks

Dry thermo

OFF

time (min)

3

3

10

2. Fan

3. Vane
(up/down vane change)

1-2. Freeze prevention control
No control function

Indoor fan operation controlled depending on the compressor conditions.

Dry thermo

ON

OFF

Excluding the following

Room temp. < 64°F

Fan speed notch

[Low]

Stop

[Low]

Note: Remote controller setting is not acceptable.

Same control as COOL operation

10

6-3. FAN OPERATION

TIME SUN MON TUE WED THU FRI SAT

ûF ûC

TEMP.

MENU

BACK DAY

MONITOR/SET

PAR-21MAA

CLOCK

TIMER

AFTER

ONLY1Hr.

ON/OFF

ERROR CODE

ûF ûC

OPERATION

ON

OFFHrAFTER

FUNCTION

FILTER

WEEKLY

SIMPLE

AUTO OFF

ON/OFF

FILTER

CHECK

CLEAR

<How to operate>

Press POWER ON/OFF button.
Press the operation MODE button to display FAN.

TEST

Control modes

1. Fan

2. Vane
(up/down vane change)

Control details

Set by remote controller.

Type

4 speeds type [Low], [Mid2], [Mid1], [High]

Fan speed notch

Same as the control performed during the COOL operation, but with no restriction
on the vane's downward blow setting

Remarks

· Same control
as COOL
operation

11

6-4. HEAT OPERATION

TIME SUN MON TUE WED THU FRI SAT

ûF ûC

TEMP.

MENU

BACK DAY

MONITOR/SET

PAR-21MAA

CLOCK

TIMER

AFTER

ONLY1Hr.

ON/OFF

ERROR CODE

ûF ûC

OPERATION

ON

OFFHrAFTER

ON/OFF

FUNCTION

FILTER

WEEKLY

SIMPLE

AUTO OFF

FILTER

CHECK

CLEAR

TEST

<How to operate>

Press POWER ON/OFF button.
Press the operation MODE button to display HEAT.
Press the TEMP. button to set the desired temperature.

NOTE: The set temperature changes 2°F when the or button is

pressed one time. Heating 63 to 83°F.

<Display in HEAT operation>
[DEFROST]

The [DEFROST] symbol is only displayed during the defrost operation.

[STANDBY]

The [STANDBY] symbol is only displayed during the hot adjust mode.

Control modes

1.

Thermoregulating

function

2. Fan

Control details

1-1. Thermoregulating function (Function to prevent restarting for 3 minutes)

•

Room temperature desired temperature -2°F ···Thermo ON

•

Room temperature desired temperature ···Thermo OFF

By the remote controller setting (switch of 4 speeds)

Type

4 speeds type

Fan speed notch

[Low], [Mid2], [Mid1], [High]

Give priority to under-mentioned controlled mode
2-1. Hot adjust mode
2-2. Residual heat exclusion mode
2-3. Thermo OFF mode (When the compressor off by the thermoregulating)
2-4. Cool air prevention mode (Defrosting mode)

2-1. Hot adjust mode
The fan controller becomes the hot adjuster mode for the following conditions.
When starting the HEAT operation

When the thermoregulating function changes from OFF to ON.

When release the HEAT defrosting operation

Hot adjust mode *1

Set fan speed by the remote controller

[Low]

[Extra Low]

Remarks

*1

"STAND BY"
will be displayed
during the hot
adjust mode.

ACB

A: Hot adjust mode starts.
B: 5 minutes have passed since the condition A or the indoor liquid pipe
temperature turned 95°F or more.
C: 2 minutes have passed since the condition B. (Terminating the hot adjust mode)

2-2. Residual heat exclusion mode
When the condition changes the auxiliary heater ON to OFF (thermoregulating or
operation stop, etc), the indoor fan operates in [Low] mode for 1 minute.

To be continued on the next page.

12

· This control is
same for the
model without
auxiliary heater.

From the preceding page

Control modes

2. Fan

3. Vane control
(Up/down vane
change)

Control details

2-3. Thermo OFF mode
When the thermoregulating function changes to OFF, the indoor fan operates in
[Extra low].

2-4. Heat defrosting mode
The indoor fan stops.

(1) Initial setting: OFF → HEAT···[last setting]
When changing the mode from exception of HEAT to HEAT operation

···[Downward C]

(2) Vane position:

Horizontal →Downward A →Downward B →Downward C

→

(3) Restriction of vane position
The vane is horizontally fixed for the following modes.
(The control by the remote controller is temporally invalidated and control by
the unit.)

•Thermo OFF

•Hot adjust [Extra low] mode

•Heat defrost mode

Remarks

6-5. AUTO OPERATION [AUTOMATIC COOL/HEAT CHANGE OVER OPERATION]

<How to operate>

Press POWER ON/OFF button.
Press the operation MODE button to display AUTO.
Press the TEMP. button to set the desired temperature.

NOTE: The set temperature changes 2°F when the or button is

pressed one time. Automatic 67 to 83°F

Control details

ûF ûC

TEMP.

MENU

MONITOR/SET

BACK DAY

PAR-21MAA

CLOCK

Control modes

1. Initial value of
operation mode

2. Mode change

TIME SUN MON TUE WED THU FRI SAT
TIMER

AFTER

ONLY1Hr.

ON/OFF

ERROR CODE

ûF ûC

OPERATION

ON

OFFHrAFTER

FUNCTION

FILTER

WEEKLY

SIMPLE

AUTO OFF

ON/OFF

FILTER

CHECK

CLEAR

TEST

HEAT mode for room temperature < Desired temperature
COOL mode for room temperature Desired temperature

(1) HEAT mode → COOL mode
Room temperature Desired temperature + 3°F. or 3 min. has passed
(2) COOL mode → HEAT mode
Room temperature Desired temperature - 3°F. or 3 min. has passed

Remarks

3. COOL mode

4. HEAT mode

Same control as cool operation

Same control as heat operation

13

7

TROUBLESHOOTING

7-1. HOW TO CHECK THE PARTS
PKFY-P06NBMU-E PKFY-P08NBMU-E

Parts name Check points

Room temperature
thermistor (TH21)

Liquid pipe temperature
thermistor (TH22)

Gas

pipe temperature

thermistor (TH23)

Disconnect the connector then measure the resistance with a tester.
(At the ambient temperature 50°F~86°F)

Normal

4.3k~9.6k

Abnormal

Open or short

Refer to the next page for the details.

Vane motor (MV)

4

Orange

2

White
Red

1

Connect pin No.

M

Yellow

53

Fan motor (MF)

FAN

White

1

Red

4

Black

6

Linear expansion
valve (LEV)

CN60

White

Yellow

LEV

Orange

Blue

Red

Brown

Measure the resistance between the terminals using a tester. (At the ambient temperature 77°F)

Blue

Normal Normal

-

Red-White

-

Red-Blue

Red-Orange

400 ± 7%

-

-

Red-Yellow

Abnormal

Open or short

Measure the resistance between the terminals using a tester. (At the ambient temperature 68°F)

Abnormal

Open or short

White-Black

Red-Black

Normal

313 ± 8%
108 ± 8%

Disconnect the connector then measure the resistance value with a tester.
(Coil temperature 68°F)

1
2
3
4
5
6

(1)-(5)

White-Red

Yellow-Brown

(2)-(6)

200 ± 10%

Normal

Orange-Red

(3)-(5)

(4)-(6)

Blue-Brown

Abnormal

Open or short

14

7-1-1. Thermistor

<Thermistor characteristic graph>

Thermistor for
lower temperature

Room temperature thermistor (TH21)
Liquid pipe temperature thermistor (TH22)
Gas pipe temperature thermistor (TH23)

Thermistor R0=15kΩ ± 3%
Fixed number of B=3480 ± 2%

Rt=15exp { 3480( ) }

1

273+(t-32)/1.8

30°F 15.8kΩ
50°F 9.6kΩ
70°F 6.0kΩ
80°F 4.8kΩ
90°F 3.9kΩ
100°F 3.2kΩ

7-1-2. Liner expansion valve

1

273

< Thermistor for lower temperature >

50

40

30

Resistance (kΩ)

20

10

0

0-20 20 40 60 80 100 120

Temperature (°F)

Operation summary of the linear expansion valve

• Linear expansion valve open/close through stepping motor after receiving the pulse signal from the indoor controller board.

• Valve position can be changed in proportion to the number of pulse signals.
<Connection between the indoor controller board and the linear expansion valve>

Controller board

DC12V

Linear expansion valve

4

M

6

2

5

White

1

Red

3

Orange

Blue

Brown

Yellow

Φ4

Φ3

Φ2

Φ1

Brown

Red

Blue

Orange

Yellow

White

Connector(CN60)

6

5

4

3

2

1

Drive circuit

Φ4

Φ3

Φ2

Φ1

1515

<Output pulse signal and the valve operation>

2

OFF

ON
ON

OFF

Output

3
OFF
OFF

ON
ON

D

4

ON
OFF
OFF

ON

C

Output

(Phase)

[1
[2
[3
[4

1
ON
ON

OFF
OFF

Linear expansion valve operation

Open

Close

Closing a valve : 1 → 2 → 3 → 4 → 1
Opening a valve : 4 → 3 → 2 → 1 → 4
The output pulse shifts in above order.

Note:

• When linear expansion valve operation stops, all output phase
become OFF.

• At phase interruption or when phase does not shift in order, motor
does not rotate smoothly and motor will lock and vibrate.

• When the switch is turned on, 2200 pulse closing valve signal will
be sent till it goes to point in order to define the valve position.

• When the valve moves smoothly, there is no sound or vibration
occurring from the linear expansion valves, however, when the
pulse number moves from to or when the valve is locked,
more sound can be heard than in a normal situation.

• Sound can be detected by placing the ear against the screw driver
handle while putting the screw driver tip to the linear expansion
valve.

Valve position (capacity)

A

E

Close

Extra tightening (200~800 pulse)

Trouble shooting

Open

B

Pulse number

Operation circuit
failure of the micro
processor

Linear expansion
valve mechanism is
locked.

Short or breakage
of the motor coil of
the linear expansion
valve

Valve does not close
completely.

Wrong connection
of the connector or
contact failure

Outdoor unit R410A model : 1400 pulse
Outdoor unit R22 model : 2000 pulse
Opening a valve all the way

Symptom

Disconnect the connector on the controller board, then con­nect LED for checking.

When power is turned on, pulse signals will be output for 10
seconds. There must be some defects in the operation circuit
if the LED does not light while the signals are output or keeps
lighting even after the signals stop.

Motor will idle and make a ticking noise when the motor is
operated while the linear expansion valve is locked.
This ticking sound is the sign of the abnormality.

Measure the resistance between each coil (white-red, yellow­brown, orange-red, blue-brown) using a tester. It is normal if
the resistance is in the range of 200Ω ±10%.

To check the linear expansion valve, operate the indoor unit
in fan mode and at the same time operate other indoor units
in cooling mode, then check the pipe temperature <liquid

Thermistor
(Liquid pipe)

Linear
expansion
valve

It is not necessary to exchange the linear expansion valve, if
the leakage is small and not affecting normal operation.

Check the color of lead wire and missing terminal of the con­nector.

Check points

6
5
4
3
2

LED1kΩ

pipe temperature> of the indoor unit by the
outdoor multi controller board operation
monitor. During fan operation, linear expan­sion valve is closed completely and if there
is any leaking, detecting temperature of
the thermistor will go lower. If the detected
temperature is much lower than the tem­perature indicated in the remote controller,
it means the valve is not closed all the way.

1

Countermeasures

Exchange the indoor con­troller board at drive circuit
failure.

Exchange the linear expan­sion valve.

Exchange the linear expan­sion valve.

If large amount of refriger­ant is leaked, exchange
the linear expansion valve.

Disconnect the connector
at the controller board,
then check the continuity.

16

7-2. Function of Dip switch

PKFY-P06NBMU-E PKFY-P08NBMU-E

Switch Pole

1

2

3

4

SW1

Mode

selection

5

6

7

8

9

10

SW2

Capacity

code

1~6

switch

Function

Operation by switch

ON OFF

Thermistor<Room temperature>
position

Filter clogging detection Provide Not provide

Filter cleaning sign 2,500 hr 100 hr

Fresh air intake Not effective Not effective

Switching remote controller display

Humidifier control

Air flow set in case of heat
thermo OFF

Auto restart function Effective Not effective

Power

ON/OFF by breaker

Models

Built-in remote controller

+2

Thermo ON signal indication Fan output indication

Fan operation at Heating mode

Low +1 Extra low +1

Setting air flow +1 Depends on SW1-7

Effective Not effective

SW2

ON

P06

OFF

1234

ON

P08

OFF

1234

Indoor unit

Thermo ON operation at
heating mode

Effective

timing

NOTE:

1

+

Under

suspension

SW1-7

OFF

ON

OFF

ON

+2 It is impossible to intake

Indoor controller board

Before
power
supply
ON

Remarks

Address board

<Initial setting>

ON

OFF

12345678910

SW1-8

Fan speed

OFF

Extra low

OFF

Low

ON

Setting air flow

ON

Stop

the fresh air.

SW3
Function
selection

10

Heat pump/Cool only Cooling only Heat pump

1

Louver

2

Vane

3

Vane swing

4

Vane horizontal angle

5

Vane cooling limit angle setting

6

Changing the opening of linear

7

expansion valve

Heating 4 degree (4 °C) up

8

Target superheat setting

9

Tartget subcool setting

Available Not available

Second setting +3 First setting

+1

Horizontal angle Down B, C

Effective Not effective

Not effective Effective

+2

+2

——

——

—

——

17

—

Indoor controller board

Under

suspension

At cooling mode, each angle

+1

can be used only 1 hour.

+2 Please do not use SW3-9,10

as trouble might be caused
by the usage condition.

+3

Second setting is the same as
first setting.

<Initial setting>

ON

OFF

1234567 891

0

Switch

Operation by switch

Effective

timing

Remarks

SW11

1s digit

address

setting

SW12

10ths digit

address

setting

SW14

Branch

No.

Setting

J41, J42

Wireless

remote

controller

Pair No.

SW12

SW11

0

9

8

7

6

10

0

1

4

5

1

9

2

3

2

8

How to set addresses

3

7

4

6

5

Example : If address is "3", remain SW12
(for over 10) at "0", and match SW11 (for 1 to 9)

1

with "3".

Rotary Switch

SW14

0

F

E

D

C

B

A

How to set branch numbers SW14 (Series R2 only)

1

2

3

4

5

Match the indoor unit’s refrigerant pipe with

6

7

8

9

the BC controller’s end connection number.
Remain other than series R2 at "0".

Rotary switch

• To operate each indoor unit by each remote controller when installed 2 indoor
units or more are near, Pair No. setting is necessary.

(Setting

patterns

Pair No. setting is available with the 4 patterns
Make setting for J41, J42 of indoor controller board and the Pair No. of

wireless remote controller.

• You may not set it when operating it by one remote controller.
Setting for indoor unit
Cut jumper wire J41, J42 on the indoor controller board according to the

table below.

Wireless remote controller pair number:

Setting operation

1. Press the SET button (using a pointed implement). Check that the
remote controller's display has stopped before continuing.

Jumper

MODEL SELECT

flashes, and the model No. (3 digits) appears (steadily-lit).

2. Press the MINUTE button twice. The pair number appears flashing.

3. Press the temperature buttons to select the pair number to set.

4. Press the SET button (using a pointed implement).The set pair number is
displayed (steadily-lit) for 3 seconds, then disappears.

A to D).

Address board

<Initial setting>

SW12

Before

SW11

0

0

1

9

8

7

6

5

1

9

2

4

2

8

3

3

7

4

6

5

power

supply

ON

Address board

<Initial setting>

SW14

0

1

2

F

3

E

4

D

5

C

6

B

7

A

8

9

<Initial setting>

.

Under

operation

or

suspension

SET button

Pattern A

MODEL SELECT

TEMP

ON/OFF

FAN

MODE

VANE

LOUVER

CHECK

TEST RUN

RESET

CLOCK

SET

AUTO STOP

AUTO START

h

min

Pair No.

Model No.

Temperature
button

Minute
button

Setting pattern

Indoor controller
jumper wire

Pair No. of wireless
remote controller

J41 J42

A

B

C

D

—

Cut

—

Cut

—

—

Cut

Cut

0

1

2

3

Pair No.4-9 of wireless remote controller is setting pattern D.

Initial setting

—

—

—

18

7-3. TEST POINT DIAGRAM

7-3-1. Indoor controller board
PKFY-P06NBMU-E
PKFY-P08NBMU-E

CN5V
Vane motor output
(MV)

CN60
Linear expansion valve
output (LEV)

CN81
Connected to the
address board (CN82)

CN90
Connected to the wireless
remote controller board (W.B)

CN29
Pipe temperature
thermistor/Gas (TH23)

CN21
Pipe temperature
thermistor/Liquid (TH22)

CN42
Connected to the
address board (CN43)

CN51
Centrally control

CN52
Remote indication
External heater

SW3
Mode selection

J41, J42
Wireless remote controller
Pair No. setting

JP105
Model setting

SW2
Capacity setting

CN3A
Connected to the
MA-Remote controller
Between 1 to 3 8.7-13V DC
(Pin1 (+))

CN20
Room temperature
thermistor (TH21)

CN41
Connector
(HA terminal-A)

CN32
Connector
(Remote switch)

LED2
Power supply for
MA-Remote controller

CN35M
Connected to the indoor
power board (CN35P)

19

CN53M
Connected to the indoor power board (CN53P)
Between 1 to 2 24-30V DC (non-polat)
Between 3 to 5 12.5-13.7V DC (Pin3 (+))
Between 4 to 5 11.5-12.7V DC (Pin4 (+))

7-3-2. Indoor power board
PKFY-P06NBMU-E
PKFY-P08NBMU-E

FAN
Fan motor output (MF)

CND
Power supply for
indoor controller board
Between 1 to 3 208/230V AC

CN2M
Connected to the terminal block (TB5)
(M-NET transmission connecting wire)
24-30V DC (non-polar)

CN35P
Connected to the indoor controller board
(CN35M)

CN53P
Connected to the indoor controller board
(CN53M)
Between 1 to 2 24-30V DC (non-polar)
Between 3 to 5 12.5-13.7V DC (Pin3 (+))
Between 4 to 5 11.5-12.7V DC (Pin4 (+))

LED1
Main power supply
(Indoor unit : 208/230V)

FUSE
6A 250V

7-3-3. Address board
PKFY-P06NBMU-E
PKFY-P08NBMU-E

SW1

Function setting

SW12

Address setting
10ths DIGIT

1234 56789



1

0

2

9

3

8

4

7

6

5

8

SW11

Address setting
1s DIGIT

20

10

1

0



2



1

0

2

9

3

4

7

6

5

F

E

3

4

D

5

C

6

B

7

A

8

9

SW14

Branch No.

8

DISASSEMBLY PROCEDURE

PKFY-P06NBMU-E PKFY-P08NBMU-E

1. REMOVING THE LOWER SIDE OF THE INDOOR UNIT
FROM THE INSTALLATION PLATE

When there is removing plate
(1) Remove the corner box at right lower side of the indoor
unit and remove the removing plate from the corner box.
(Figure 3)
(2) Insert the removing plate at the back side of the corner
box to remove the indoor unit.
(3) Remove the hook by pulling the lower side of the indoor
unit down as shown in the Figure 1.

When there is no removing plate or it cannot be used for

some reason.
(1) Remove the front panel.
(2) Insert the screw driver to the corner hole at both left and

right side as shown in the Figure 2.
(3) Push it up, then pull down the lower side of indoor unit and
remove the hook.

Be careful when removing heavy parts.

PHOTOS & ILLUSTRATIONSOPERATION PROCEDURE

Figure 1 Figure 2

Indoor unit
removing plate



Insert
the edge

Pull

Figure 3

Be careful
not to damage
the airflow
adjustment
plate with the
screw driver.

Push

Corner hole

Push

Down

2. REMOVING THE FRONT PANEL

* Before removing the front panel, leave the open space at

upper side of the vane approximately 2 to 3 cm.

(1) Remove the 3 screw caps then remove the 3 set screws.
(Refer to the Photo 1)

(2) Remove the grille.
(3) Remove the left side of the front panel, then right side.
(4) After removing the lower side of the front panel a little,

remove it as pulling the upper side toward you.

* Please pay attention to the nozzle assembly.

INSTALLING THE FRONT PANEL
(1) Insert the lower side of the front panel under the vane.
(2) Set the upper side of the front panel. (Figure 4)
(3) Set the lower side of the front panel then fix it with the

screws.
(4) Press the area indicated as arrow sign and set it to the air
conditioner unit.
(5) Attach the screw caps.

Photo 1

Front panel

Figure 4

Corner box

Set screws

(4) Push

Grille

Van e

(2)

2121

(3)

PHOTOSOPERATION PROCEDURE

3. REMOVING THE INDOOR CONTROLLER BOARD AND
INDOOR POWER BOARD

(1) Remove the front panel. (Refer to 2)
(2) Remove the electrical box cover (screw 4 × 10).
(Refer to the Photo 2)

INDOOR CONTROLLER BOARD
(1) Disconnect the following connectors on the indoor
controller board.
(connector in front of)
CN60, CN5V, CN90, CN29, CN21
CN42, CN81, CN3A, CN20
(2) Pull out the indoor controller board toward you, then
disconnect the rest of connectors.
CN53M, CN35M (See the Photo 3)

INDOOR POWER BOARD
(1) Disconnect the following connectors on the indoor power

board.
FAN, CN53P, CN35P, CN2M, CND
(2) Remove the earth wire for TAB1.
(3) Pull out the indoor power board toward you.
(See the Photo 3)

Photo 2

Photo 3

Electrical box cover

Screw cap

Electrical box

Indoor controller board

Indoor power
board

4. REMOVING THE ELECTRICAL BOX

(1) Remove the front panel. (Refer to 2)
(2) Remove the electrical box cover. (See the Photo 2)
(3) Pull the nozzle assembly toward you as opening the catch

of the nozzle assembly. (See the Photo 5)
(4) Disconnect the indoor/outdoor transmission wiring of TB5.
(5) Disconnect the power supply wiring of TB2.
(6) Disconnect the relay connector of MA-remote controller.
(7) Disconnect the following connector on the indoor controller

board.
CN60, CN5V, CN29, CN21, CN90, (CN3A)
(8) Disconnect the connector (FAN) on the indoor power board.
(9) Remove the ground wire fixing screw.
(10) Pull the disconnected lead wire out from the electrical box.
(11) Push up the upper fixture catch to remove the box, then
pull the lower fixture and remove it from the box fixture.

Photo 4

Linear expansion valve

Liquid pipe temp.
thermistor (TH22)

Gas pipe temp.
thermistor (TH23)

Electrical box

Room temperature
thermistor cover

Indoor controller board

Indoor power
board

MA-remote
controller
connector

Terminal block
(TB5)

Terminal block
(TB2)

Ground wire set screw

22

PHOTOSOPERATION PROCEDURE

5. REMOVING THE NOZZLE ASSEMBLY AND DRAIN HOSE

(1) Remove the front panel (Refer to 2).
(2) Remove the electrical box cover.
(3) Disconnect the connector (CN5V) on the indoor controller
board.
(4) After unhook the right side of the corner box, press the

upper left side and remove the corner box.

(5) Remove the nozzle assembly from the fixture.

(See the Photo 5)

(6) Remove the drain hose.

6. REMOVING THE LINE FLOW FAN AND THE FAN MOTOR

(1) Remove the front panel. (Refer to 2)
(2) Remove the nozzle assembly. (Refer to 5)
(3) Remove the electrical parts box.
(4) Remove the fixture while pressing the right side of motor

fixture catch. (See the Photo 6)
(5) Remove the left side of the motor fixture.
(6) Loosen the screw which fixes the line flow fan to the fan

motor, then remove the fan motor by sliding it to the right

side. (See the Photo 6)
(7) Pull the left-hand side of the heat exchanger toward you.

(See the Photo 7)
(8) Remove the line flow fan.

Photo 5

fixture

Photo 6

Line flow fan

set screws

Photo 7

Heat exchanger

Nozzle assembly

Heat exchanger

Heat exchanger

Electrical box

Drain hose

Drain hose

fixture

Fan motor

fixture (right)

fixture (left)

fixture set screws

Drain hose

Nozzle assembly

7. REMOVING THE VANE MOTOR

(1) Remove the front panel.
(2) Remove the screw of the electrical parts box cover, and
remove the cover.
(3) Remove the 2 screws of the vane motor.
Disconnect the relay connector and remove the motor
from the shaft.
(4) Disconnect the vane motor connector (CN5V) on the indoor

controller board.

8. REMOVING THE LIQUID PIPE THERMISTOR AND GAS
PIPE THERMISTOR

(1) Remove the front panel. (Refer to 2)
(2) Remove the electrical box cover.
(3) Remove the coil cover.
(4) Cut the wiring fixed band.
(5) Remove the liquid pipe thermistor and gas pipe thermistor.

(See the Photo 9)
(6) Disconnect the connector (CN29) (CN21) on the indoor
controller board.

Heat exchanger
fixture (left)

Photo 8

Photo 9

Heat exchanger

Gas pipe
thermistor

Heat exchanger

Vane motor

Vane motor fixing
screws

Nozzle assembly

Liquid pipe thermistor

Electrical box

23

TM

HEAD OFFICE : TOKYO BLDG., 2-7-3, MARUNOUCHI, CHIYODA-KU TOKYO 100-8310, JAPAN

Copyright 2009 MITSUBISHI ELECTRIC ENGINEERING CO., LTD.
Distributed in Apr. 2009 No. OCH461 PDF 7
Made in Japan

New publication, effective Apr. 2009
Specifications subject to change without notice