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33

Pump down is to collect the refrigerant into the outdoor unit by control of the 2 and 3-way valve and the compressor. This
method is adopted in the case of unit removal for re-installation, abandonment, repair etc. Especially, pump down must
be performed when abandoning the air conditioner. For environmental protection, do not cut the pipes connecting the
indoor and outdoor unit and release the refrigerant into air.

Pump down can be performed only under cooling operation conditions.
Perform pump down with cooling test run mode. (REFER THE FOLLOWING TEST RUN)

How to do perform the pump down:
(1) Stop the air conditioner operation and connect the gauge manifold(compound gauge) hose to the service point of 3-

way valve.

(2) Remove the air in the hose by loosening screw  a   shown in the figure below.
(3) Run the air conditioner with cooling test run mode 5 minutes.

If pump down is performed with normal cooling operation, the protection system may work and the operation may
stop.

(4) Fully close the stop valve of 2-way valve side by turming the hexagon socket screw key clockwise.
(5) Close the stop valve of 3-way valve side to half closed position.
(6) Keep running the air conditioner for 40 - 60 seconds. When the pressure of the compound gauge reads 0.05MPa,

then immediately fully close the stop valve opf 3-way side.

(7) Disconnect the hose and attach the service port cap as it was before.

If you run the air conditioner until the pressure drops below 0.05MPa, Indoor unit side become negative pressure.
As a result, moisture or dust in the air will enter into the indoor unit.
Thereforte, stop the air conditioner when 0.05MPa.

OPERATION LAMP

OPERATION PANEL

INDOOR UNIT

COMPOUND
GAUGE

OUTDOOR 
UNIT

HEXAGON SOCKET
SCREW KEY

(FULLY CLOSE)

SMALLER TUBE

STOP VALVE

LARGER TUBE

STOP VALVE

SERVICE 
PORT

(HALF CLOSED)

STOP VALVE
(2-WAY VALVE)
SMALLER TUBE
FULLY CLOSE

COMPOUND 
GAUGE

PRESSURE

GAUGE

HOSE

STOP VALVE(3-WAY VALVE)
FIRST, CLOSE UNTIL HALF-CLOSED
THEN FULLY CLOSE ACCORDING
TO GAUGE READING 0.05 - 0MPa

SERVICE PORT

TEST RUN
(1) Push the TEST RUN button on the operation panel of the

indoor unit.
The operation lamp flashes and the unit operates in the
cooling mode.

(2) Push the AUX. button to stop the TEST RUN operation.

34

1- 1

CMOT-A273JBK0

Fan motor sub ass’y

1

BN

1- 2

NFANCA042JBE0

Cross flow fan

1

BC

1- 3

CSRA-A488JBKZ

Drain pan ass’y

1

BM

1- 4

MJNTPA040JBFF

Louver link

3

AC

1- 5

MLOV-A135JBFF

Vertical louver A

9

AC

1- 6

MLOV-A136JBFF

Vertical louver B

3

AC

1- 7

MLOV-A133JBFE

Horizontal louver A

1

AK

1- 8

MLOV-A134JBFE

Horizontal louver B

1

AK

1- 9

PPACGA002JBE0

O ring

1

AA

1-10

RMOT-A050JBE0

Louver motor

1

AY

1-11

PGUMMA071JBE0

Motor cushion

1

AN

1-12

LHLD-A197JBFP

Louver holder

4

AC

1-13

PGUMMA086JBE0

Motor cushion

1

AG

1-14

PCOV-A190JBE0

Drain cover

1

AE

1-15

CHLD-A053JBK0

Bearing ass’y

1

AL

1-16

LHLD-A187JBFB

Tube holder

1

AC

1-17

PSHE-A099JBE0

Evaporator sheet

1

AH

1-18

LSPR-A006JBE0

Sheet spring

2

AB

1-19

DCHS-A386JBKZ

Cabinet ass’y

1

BA

1-20

DWAK-A797JBKZ

Panel ass’y

1

BE

1-21

PFILMA077JBEB

Air filter

2

AN

1-22

HDEC-B084JBEA

Display cover

1

AF

1-23

HBDG-A059JBEA

Badge

1

AH

1-24

LHLD-A209JBFA

Front panel hinge R

1

AF

1-25

MARMPA012JBFA

Open panel hinge L

1

AD

1-26

MARMPA013JBFA

Open panel hinge R

1

AD

1-27

LHLD-A208JBFA

Front panel hinge L

1

AD

1-28

PBOX-A120JBK0

Louver gear ass’y

1

AZ

1-29

NBRG-A026JBFA

Louver bushing

2

AB

1-30

PSHE-A098JBE0

Evaporator seal

1

AC

1-31

TLABPA175JBR0

Louver label

1

AB

1-32

TSPC-D397JBRA

Name label

1

AE

1-33

PGUMSA046JBE0

Damper rubber

1

AD

1-34

HPNL-A097JBFC

Open panel

1

AW

1-35

PFPFPB074JBE0

Thermistor insulator

1

AB

1-36

PHOS-A015JBE0

Drain hose

1

AL

1-37

LHLD-A204JBF0

Motor holder

1

AE

1-38

PSEL-B417JBE0

Aluminum tape

1

AC

1-39

PSEL-B418JBE0

Aluminum tape

1

AD

1-40

PSEL-B494JBE0

Aluminum sheet

1

AD

1-41

PSEL-B492JBE0

Box-sheet

1

AC

1-42

TLAB-B722JBEZ

Label

1

AE

2- 1

FSGY-A072JBK0

Display unit

1

AX

2- 2

FPWBFA024JBK0

Switch board unit

1

AM

2- 3

QTAN-A327JBZZ

Terminal board

1

AS

2- 4

RFIL-A096JBE0

Coil

1

AS

2- 5

DPWBFA187JBKZ

Control board unit

1

BM

2- 6

QFS-GA027JBEZ

Fuse

1

AD

2- 7

RH-VZA037JBE0

Varistor

1

AE

2- 8

RTRN-A182JBE0

Transformer

1

AY

2- 9

RC-HZA195JBE0

Fan motor capacitor

1

AL

2-10

RTHM-A296JBE0

Thermistor

1

AN

2-11

LHLD-A190JBF0

Thermistor holder

1

AG

2-12

DBOX-A026JBK0

Control box ass'y

1

AT

2-13

HPNLCA497JBF0

Control box cover

1

AF

2-14

HPNLCA616JBE0

Control panel

1

AE

2-15

VHRPC111LY2-6

Photo coupler(PC1, PC2)

2

AK

2-16

LHLD-A266JBFB

Cord clamp

1

AF

2-17

TLABCB302JBR0

Wiring diagram

1

AD

2-18

PSHE-A076JBE0

Protection cover

1

AC

2-19

PGUMMA095JBE0

Wire cushion

1

AA

2-20

PCOV-A191JBE0

LED holder

1

AC

2-21

RH-IXA592JBZZ

Micro computer

1

AC

2-22

RH-IZA149JBE0

Integrated circuit

1

AE

2-23

RIC—-A022BDE0

Integrated circuit

1

AE

2-24

VHIIR2411//-6

Integrated circuit

1

AE

2-25

VHIPST591D/-3

Integrated circuit

1

AE

2-26

VHIBR24C01A-6

Integrated circuit

1

AF

2-27

RH-SZA007JBE0

Triac

1

AK

2-28

QFS-TA037JBE0

Thermal fuse(TC)

1

AF

2-29

RC-QZA096JBE0

Film capacitor

1

AE

35

2-30

RTRN-A181JBE0

Current transfomer

1

AN

2-31

QW-VZC636JBE0

Fan motor lead wire

1

AG

3- 1

CPIPCA640JBK0

Pipe ass’y

1

BA

3- 2

PEVA-A399JBE0

Evaporator

1

BQ

4- 1

LX-NZ0247JBE0

Special nut

7

AB

4- 2

XTTSD45P30000

Tapping screw

6

AA

4- 3

CRMC-A489JBE0

Remote controller

1

BG

4- 4

LX-BZA106JBE0

Special screw

1

AE

4- 5

PPLTNA022JBP0

Mounting plate

1

BC

4- 6

FCOV-A013JBFS

Screw cover

2

AC

6- 1

LX-BZA075JBE0

Special screw

1

AA

6- 2

XREUW50-06000

Ring

2

AC

HOW TO ORDER REPLACEMENT PARTS

To have your order filled prompty and correctly, please furnish the following information.

1. MODEL NUMBER

2. REF. NO.

3. PART NO.

4. DESCRIPTION

36

A

B

C

D

E

F

G

H

A

1

2

3

4

5

6

1

2

3

4

5

6

B

C

D

E

F

G

H

1-30

1-17

3-2

3-1

4-5

1-16

1-19

1-18

2-10

1-2

1-15

2-14

2-16

2-3

2-13

2-2

2-18

2-1

2-12

2-9

4-2

4-1

4-4

4-3

4-6

2-20

1-3

1-10

1-8

1-12

1-7

1-36

1-9

1-6

2-10

1-4

1-28

2-11 6-1

1-14

1-37

1-5

1-31

1-29

1-33

1-21

1-32

2-17

6-2

1-13

1-11

1-27

1-20

1-25

1-1

2-31

1-26

1-24

1-22

1-34

1-23

2-8

2-5

1-41

2-19

1-35

1-40

1-39

1-38

1-42