Samsung CH18, CH24, CH36, CH44 CA Service Manual

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Page 1

CASSETTE TYPE AIR CONDITIONER

(Cool and Heat)

Type

ACH1800E(1) ACH2400E(1) ACH3600G(1) ACH4400G(1) CH18ZA CH24ZA CH36ZA CH44ZA CH18CA CH24CA CH36CA CH44CA

SERVICE

Indoor Unit

ICH1800E ICH2400E ICH3600G ICH4400G CH18ZA CH24ZA CH36ZA CH44ZA CH18CA CH24CA CH36CA CH44CA

Outdoor Unit

UBH1800E UBH2400E UCH3600G UCH4400G CH18ZAX CH24ZAX CH36ZAX CH44ZAX CH18CAX CH24CAX CH36CAX CH44CAX

Manual

Panel

IFS095G00/01 IFS095G00/01 IFS095G00/01 IFS095G00/01 CH01(02)ZAP CH01(02)ZAP CH01(02)ZAP CH01(02)ZAP CH01(02)ZAP CH01(02)ZAP CH01(02)ZAP CH01(02)ZAP

AIR CONDITIONER CONTENTS

1. Precautions

2. Product Specifications

3. Operating Instructions

4. Installation

5. Disassembly and Reassembly

6. Troubleshooting

7. Exploded Views and Parts List

8. Block Diagrams

9. PCB Diagrams

10. Schematic Diagrams

11. Wiring Diagrams

Page 2

1. Precautions

dangerous

1. Warning: Prior to repair, disconnect the power cord from the circuit breaker.

2. Use proper parts: Use only exact replacement parts. (Also, we recommend replacing parts rather than repairing them.)

3. Use the proper tools: Use the proper tools and test equipment, and know how to use them. Using defective tools or test equipment may cause problems later-intermittent contact, for example.

4. Power Cord: Prior to repair, check the power cord and replace it if necessary.

5. Avoid using an extension cord, and avoid tapping into a power cord. This practice may result in malfunction or fire.

Fig. 1-1 Avoid Dangerous Contact

6. After completing repairs and reassembly, check the insulation resistance. Procedure: Prior to applying power, measure the resistance between the power cord and the ground terminal. The resistance must be greater than 30 megohms.

7. Make sure that the grounds are adequate.

8. Make sure that the installation conditions are satisfactory. Relocate the unit if necessary.

9. Keep children away from the unit while it is being repaired.

10. Be sure to clean the unit and its surrounding area.

11. Be sure that the installed conditions are satisfactory and correct according to the specifications.

Fig. 1-2 No Tapping and No Extension Cords

Fig. 1-3 No Kids Nearby!

Samsung Electronics

Fig. 1-4 Clean the Unit

1-1

Page 3

MEMO

1-2 Samsung Electronics

Page 4

2. Product Specifications

2-1 Table of Specifications

MODEL

Capacity

Power supply Power input

Running current EER

Indoor

Fan speed

unit

Air circulation

Noise Level (Sound pressure) Heat exchanger Fan

Dimensions

Weight

Panel

Dimensions

Weight

Outdoor

Fan speed

unit

INDOOR UNIT

OUTDOOR UNIT

Cooling

Btu/h

Heating

Btu/h

Cooling Heating Cooling Heating Cooling Heating

H.H

Hi Med Low

H.H

Hi Med Low

kW kW

A W/W W/W r.p.m. r.p.m. r.p.m. r.p.m.

/min

dB(A) dB(A) dB(A)

type

row x stages x fin pitch

type

motor output

D kg Hi

Low

W mm mm mm

Net/Gross

mm mm mm

Net/Gross

r.p.m. r.p.m.

ICH1800E/CH18ZA UBH1800E/CH18ZAX

17,400

18,400

ICH2400E/CH24ZA UBH2400E/CH24ZAX

5,100

5,400

23,000

6,700

24,500

7,200

ICH3600G/CH36ZA UCH3600G/CH36ZAX

34,500 10,100 38,600 11,300

ICH4400G/CH44ZA UCH4400G/CH44ZAX

43,000 12,600 46,000 13,500

CH18CA

CH18CAX

17,400

5,100

19,400

5,700

CH24CA

CH24CAX

22,100

6,500

25,500

7,500

CH36CA

CH36CAX

32,400

9,500 42,000 12,300

220-240~ 50Hz 380-415V 3~ 50Hz 220-240~ 50Hz 380-415V 3 ~ 50Hz

1.75

1.80

8.0

8.2

2.8

2.9

(410)

370 330 290

16 14 12 10 39 37 35

slit fin coil

2x8x1.4(890/980)

Turbo

35 230 840 840

29/34

42 950 950

5/10

950 500

2.30

2.65

10.5

12.3

2.7

2.8

(480)

440 400 360

18 16 14 12 41 39 37

slit fin coil

2x8x1.4(890/980)

3x10x1.5(890/980)

Turbo

35 230 840 840

29/34

42 950 950

5/10

750 400

3.40

3.90

6.0

6.7

2.8

2.9

(710)

630 550 470

29 25 21 17 50 47 45

slit fin coil

Turbo

70 288 840 840

34/40

42 950 950

5/10

750 400

4.30

4.90

7.7

8.8

2.7

2.8

(740)

660 580 500

31 27 23 19 52 49 47

slit fin coil

3x10x1.5(890/980)

2x8x1.4(890/980)

Turbo

80 288 840 840

34/40

42 950 950

5/10

900 450

1.85

1.90

8.6

8.7

2.7

3.0

(410)

370 340 290

14 12 10

8 41 39 37

slit fin coil

Turbo

230 840 840

29/34

950 950

5/10

930 480

2.45

2.6

11.5

12.5

2.5

2.8

(480)

440 400 360

18 16 14 12 43 41 39

slit fin coil

2x8x1.4(890/980)

3x10x1.5(890/980)

Turbo

35 230 840 840

29/34

42 950 950

5/10

750 400

3.4

4.0

5.9

6.7

2.6

3.0 710 630 550 470

29 25 21 17 50 48 46

slit fin coil

Turbo

70 288 840 840

34/40

42 950 950

5/10

750 450

CH44CA

CH44CAX

38,500 11,300 47,500 14,000

4.45

5.4

8.2

9.5

2.5

2.6 740 660 580 500

31 27 23 19 52 50 48

slit fin coil

3x10x1.5(890/980)

Turbo

80 288 840 840

34/40

42 950 950

5/10

900 450

Samsung Electronics

2-1

Page 5

Product Specifications

MODEL

Outdoor unit

Condition

Piping

INDOOR UNIT

OUTDOOR UNIT

Air circulation (Hi) Sound pressure level Fan

type motor output

Compressor

type model motor output

protection Heat exchanger

type

row x stages x fin pitch

face area Refrigerant

control

(R22)charge Dimensions Weight Indoor unit

(HXWXD)

Cool(DB/WB)

Heat(DB/WB) Outdoor unit

Cool(DB/WB)

Heat(DB/WB) Pipe O.D. size

Liquid

Gas Connection method Between

Height

Pipe length

ICH1800E/CH18ZA UBH1800E/CH18ZAX

m3/min

dB(A)

2x24x1.7(824)

Net/Gross

˚C ˚C ˚C

˚C mm(inch) mm(inch)

35 55

propeller

scroll

ZR22K3-PFJ

1.37

Internal

wave fin coil

0.494

Capillary

2,000

620x787x320

63/68 27/19 20/15 35/24

7/6

9.52(3/8")

15.88(5/8") Flare

Max. 15 Max. 30

ICH2400E/CH18ZA UBH2400E/CH24ZAX

propeller

ZR28K3-PFJ

Internal

D fin coil

2x24x1.7(896)

Capillary

638x880x310

9.52(3/8")

15.88(5/8")

Max. 15 Max. 30

45 56

scroll

1.74

0.538

2,400

67/72 27/19 20/15 35/24

7/6

Flare

ICH3600G/CH36ZA

UCH3600G/CH36ZAX

80 62

propeller

scroll

ZR47KC-TFD

2.92

Internal

wave fin coil

2x48x1.7(935/915)

1.122

Capillary

2,700

1240x930x385

120/130

27/19 20/15 35/24

7/6

9.52(3/8")

19.05(3/4") Flare

Max. 25 Max. 50

ICH4400G/CH44ZA UCH4400G/CH44ZAX

90 63

propeller

114

scroll

ZR61KC-TFD

3.79

Internal

wave fin coil

2x48x1.7(935/915)

1.122

Capillary

3,300

1240x930x385

123/133

27/19 20/15 35/24

7/6

9.52(3/8")

19.05(3/4") Flare

Max. 25 Max. 50

CH18CA

CH18CAX

35 54

propeller

scroll

ZR22K3E-PFJ

1.37

Internal

wave fin coil

2x24x1.7(824)

0.494

Capillary 1,800(R407C) 620x787x320

63/68 27/19 20/15 35/24

7/6

9.52(3/8")

15.88(5/8") Flare

Max. 15 Max. 30

CH24CA

CH24CAX

45 55

propeller

scroll

ZR28K3E-PFJ

1.74

Internal

D fin coil

2x24x1.7(896)

0.538

Capillary 2,000(R407C) 638x880x310

67/72 27/19 20/15 35/24

7/6

9.52(3/8")

15.88(5/8") Flare

Max. 15 Max. 30

CH36CA

CH36CAX

CH44CAX

80 61

propeller

scroll

ZR47KCE-TFD

ZR61KCE-TFD

2.92

Internal

wave fin coil

2x48x1.7(935/915)

wave fin coil

2x48x1.7(935/915)

1.122

Capillary

2,250(R407C)

1,240x930x305

2,800(R407C)

1,240x930x385

120/130

27/19 20/15 35/24

7/6

9.52(3/8")

19.05(3/4")

Flare Max. 25 Max. 50

CH44CA

90 62

propeller

114

scroll

3.79

Internal

1.122

Capillary

123/133

27/19 20/15 35/24

7/6

9.52(3/8")

Flare Max. 25 Max. 50

* Wind flow : It is data of heating standard opertion.

2-2

Samsung Electronics

Page 6

2-2 Dimensions

2-2-1 Indoor unit

• Indoor Unit Dimensions (ICH1800E/ICH2400E/CH18ZA/CH24ZA/CH18CA/CH24CA)

Unit : mm

200

Drain tube outlet

145

Water Supply Intake

950 (Dimensions of Front Panel)

880 (Cutting Dimensions of Ceiling)

766 (Space of Suspension Bolts)

Liquid refrigerant port

Gas refrigerant port

Fixing bracket

146

126

699 (Space of Suspension Bolts)

156

840 (Outer Dimensions)

880 (Cutting Dimension of Ceiling)

246

290

260

110

Samsung Electronics

840 (Outer Dimensions)

230

2-3

Page 7

• Indoor Unit Dimensions (ICH3600G/ICH4400G/CH36ZA/CH44ZA/CH36CA/CH44CA)

Unit : mm

258

Drain tube outlet

145

Water Supply Intake

950 (Dimensions of Front Panel)

880 (Cutting Dimensions of Ceiling)

766 (Space of Suspension Bolts)

Liquid refrigerant port

Gas refrigerant port

Fixing bracket

146

126

699 (Space of Suspension Bolts)

156

840 (Outer Dimensions)

880 (Cutting Dimension of Ceiling)

262

148 168

260

290

2-4

840 (Outer Dimensions)

288

Samsung Electronics

Page 8

2-2-2 Outdoor Unit

• Outdoor Unit Dimensions (UBH1800E/CH18ZAX/CH18CAX)

320

(Front view) (Rear view)

638

582 787

• Outdoor Unit Dimensions (UBH2400E/CH24ZAX/CH24CAX)

310

(Front view) (Rear view)

638

660 880

Samsung Electronics

2-5

Page 9

;

Product Specifications

• Outdoor Unit Dimensions

;;;;;

(UCH3600G/CH36ZAX/UCH4400G/CH44ZAX/CH36CAX/CH44CAX)

930

1420

385

Input bolt fixing dimension

840mm

2-6

415mm

Samsung Electronics

Page 10

2-2-3 Remote control

• Wired Remote Controller-Buttons and Display

• Wireless Remote Controller-Buttons and Display

Samsung Electronics

2-7

Page 11

Product Specifications

• Centralized Controller

2-8

Samsung Electronics

Page 12

3. Operating Instructions

Timer indicator On/Off button

On/Off indicator

Removing frost indicator

Remote control sensor

Filter Sign indicator

3-1 Display on Indoor unit

Samsung Electronics

3-1

Page 13

3-2 Name & Functions in Remote Control

3-2-1 Wired Remote Controller-Buttons

NAMED OF KEY

(UP)

(DOWN)

FUNCTION OF KEY

Power On/Off button to start and stop airconditioner or timer set up

Temp. up button. To increase the temperature by the pressing the temperature button

Temp. down button. To decrease the temperature by the pressing the temperature button

Each time you press this button Mode is changed in the following order

To complete the installation, checks and tests to ensure that the air conditioner is operating correctly.

When the indicator appeard on the remocon screen, cleaning the air conditioner filter. After that, press this button.

Each time you press this button, FAN SPEED is changed in the following order.

FILTER SIGN

: Auto Mode : Blowing : Cooling Mode : Heat Mode : Dehumidifying Mode

3-2

Adjust air flow vertically.

The ON Timer enables you to switch onthe air conditioner automatically after a given period of time that is from 30 minutes to 24 hours. To cancel the On Time, press the (Set/Cancel) button.

The Off Timer enables you to switch off the air conditioner automatically after a given period of time that is from 30 minutes to 24 hours. To cancel the On Time, press the (Set/Cancel) button.

Samsung Electronics

Page 14

3-2-2 Wireless Remote Controller

Operating Instructions and Installation

NAMED OF KEY

(UP)

(DOWN)

FUNCTION OF KEY

Power On/Off button to start and stop airconditioner or timer set up

Temp. up button. To increase the temperatute by the pressing the temperature button

Temp. down button. To decrease the temperature by the pressing the temperature button

Each time you press this button Mode is changed in the following order

When the indicator appeard on the remoconscreen, cleaning the air conditioner filter. After that, press the this button.

Each time you press this button, FAN SPEED is changed in the following order.

FILTER SIGN

: Auto Mode : Blowing : Cooling Mode : Heat Mode : Dehumidifying Mode

Adjust air flow vertically.

The ON Timer enables you to switch onthe air conditioner automatically after a given period of time that is from 30 minutes to 24 hours. To cancel the On Time, press the (Set/Cancel) button.

The Off Timer enables you to switch off the air conditioner automatically after a given period of time that is from 30 minutes to 24 hours. To cancel the On Time, press the (Set/Cancel) button.

Samsung Electronics

3-3

Page 15

3-3 Control system diagram

Operation

mode

RECEIVE &

DISPLAYUNIT

ON/OFF KEY

WIRELESS

REMOTE

CONTROLLER

WIRED

REMOTE

CONTROLLER

CENTRALIZED

CONTROLLER

* Automatic operation

* Start/Stop, operation mode select, wind volume select,

temperature control, filter reset, reserved operation, up and down operation(cassette), timer cancel

* Start/Stop, operation mode select, wind volume select,

temperature control, filter reset, reserved operation, up and down operation(cassette), timer cancel, startup, group control setting and disassembly

* Centralized control

→ 16 chamber set all on, 16 chamber set all off → Each chamber set on/off → Centralized control level setting

Operating

selection mode

Automatic

operation

Cooling

operation

Dehumidifying

operation

Blowing

operation

Heating

operation

Automatic change over according to the desired temperature 18˚C ~ 30˚C. Automatic wind volume control according to the difference between the desired temperature and room temperature

Room temperature control according to the desired temperature (18˚C ~ 30˚C)

Humidity control depending upon the difference between the desired temperature and the room temperature (18˚C ~ 30˚C)

Indoor fan motor operation only (breeze, weak, strong wind or weak, strong, turbo)

Room temperature control according to the desired temperature (16˚C ~ 30˚C)

3-4

Samsung Electronics

Page 16

Operating Instructions and Installation

Wind volume

select mode

Wind flow select

mode

Reserved

operation mode

Manual 3 steps

Wind

volume auto

Up and down

rotation

Timer operation

for

30min ~ 24 hours

Breeze, weak, strong (available at cooling, heating, blowing)

Auto wind volume control depending on the difference between the desired temperature and room temperature

Available by wire and wireless remote controller and operated only for rotation/stop (cassette type model dedicated)

Selectable by wired & wireless remote controller and available for start, stop, start/stop reservation

Samsung Electronics

3-5

Page 17

3-4 Micro Computer Block Diagram (Cassette) - Indoor

3-6

Samsung Electronics

Page 18

3-5 Micro Computer Block Diagram - Outdoor

Samsung Electronics

3-7

Page 19

MEMO

3-8 Samsung Electronics

Page 20

4. Installation

4-1 Operation of the Remote Controller (Wired/Wireless receiving board)

4-1-1 Name and function of each part for the wired remote controller

Communication error indicator

On Timer setting Off Timer setting

Test indicator

Temperature adjustment

buttons

On Timer button

Off Timer button

Test button

Removing frost indicator

Operating mode

Mode selection button

Centralized controller indicator (In case of installing the Centralized controller)

Temperature setting Fan speed

Air flow direction Filter Sign indicator

On/Off & Timer Set/Cancel button On/Off indicator

Fan speed adjustment button

Swing button

Filter Reset button

BUTTON NAME FUNCTION

• Start and stop of operation

On/OFF & Timer

Set/Cancle

Temperature adujustment

(…, †)

On Timer

Off Timer

Test

Mode Selection

Filter Reset

Fan Speed

Flow Direction

- To toggle the operation On and Off.

• When making the reservation

- The reservation time can be set or canceled when pushing the Timer Set/ Cancel button after adjusting the reservation time with On Timer or Off Timer.

• To increase (

…) or decrease (†) the desired temperature.

• One cycle or continuous operation is available.

• To increase the On reservation time

• One cycle or continuous operation is available.

• To increase the Off reservation time

• One cycle or continuous operation is available.

• Pressing the key for more than 3 seconds with the SET off starts the initial operation (forced cooling operation for 3 minutes).

• To rotate in the order of AUTO → Cooling → Dehumidifying → Blowing → heating.

• When the filter sign display starts to show the replacement time of filter of indoor unit, pressing the key after cleaning the filter resets the filter sign.

• The wind mode to rotate in the order of wind select button, Breeze → Weak → Strong → Wind auto → Breeze.

• The blades ard moving between up and down.

Samsung Electronics

4-1

Page 21

Installation

4-1-2 Name and function of each part for the wireless remote controller

Operating mode

Temperature setting

Fan speed

Air flow direction

On Timer setting Off Timer setting

Battery discharge indicator

Mode selection button

Temperature adjustment buttons

Filter Reset button Fan speed adjustment button Swing button On Timer button

Off Timer button

On/Off & Timer Set/Cancel button

BUTTON NAME FUNCTION

• Start and stop of operation

On/OFF & Timer

Set/Cancle

Temperature adjustment

(…, †)

On Timer

Off Timer

Mode

Filter Reset

Fan Speed( )

Swing button

(Timer Cancel)

- To toggle the operation On and Off.

• When making the reservation

- The reservation time can be set or canceled when pushing the Timer Set/ Cancel button after adjusting the reservation time with On Timer or Off Timer.

• To increase (…) or decrease (†) the desired temperature.

• One cycle or continuous operation is available.

• To increase the On reservation time

• One cycle or continuous operation is available.

• To increase the Off reservation time

• One cycle or continuous operation is available.

• To rotate in the order of Auto → Cooling → Dehumidifying → Blowing → Heating

• When the filter sign display starts to show the replacement time of filter of indoor unit, pressing the key after cleaning the filter resets the filter sign.

• The wind mode to rotate in the order of wind select button, Breeze → Weak → Strong → Wind auto → Breeze.

• The blades are moving between up and down. (In case of Cassette model)

• To cancel the reservation setting (In case of Duct model).

There is no test key separately assigned to the wireless remote controller.

1. Remove both batteries from the wireless remote controller.

4-2

2. At the state of simultaneous pressing of On Timer key and Off Timer key, insert the batteries in the wireless remote controller.

3. When the wireless remote controller is on the TEST MODE, press On/Off key to make the SET for the Test operation.

Samsung Electronics

Page 22

4-1-3 Appearance and function wireless receiving board

Installation

Timer indicator

Remote control sensor

Filter Sign

indicator

On/Off button

On/Off indicator

Removing frost indicator

4-1-4 Opeartion specification of wireless receiving board

PART NAME

DEFROST LAMP

FILTER SIGN LAMP

TIMER LAMP

ON-OFF LAMP

ON-OFF BUTTON

Wireless receiving board and outdoor unit PCB display specification when error occurs

4-1-5

SOURCE & OPERATION SPEC.

RED, lamp on during defrost operation

Green, display during filter cleaning

Green, lamp when setting the reserve operation

Red, lamp during operation on

On/Off toggle operation

REMARK

in ERROR DISPLAY : flickering

in ERROR DISPLAY : filickering

in ERROR DISPLAY : flickering in ERRO DISPLAY :flickerning

Operated only for automatic mode operation

ERROR MODE

(OUTDOOR DISPLAY)

Samsung Electronics

CONTENTS OF ERROR

Abnormal on indoor temperature sensor (4.9[V] and higher, 0.5[V] and lower

Abnormal on indoor pipe temperature sensor (4.9[V] and higher, 0.5[V] and lower

Abnormal on outdoor temperature sensor (4.9[V] and higher, 0.5[V] and lower

Float switch detection

Indoor ↔ outdoor communication defect

Indoor unit ↔ wired remote controller communication defect

Abnormal on outdoor pipe temperature sensor (4.9[V] and higher, 0.5[V] and lower

WIRELESS RECEIVING BOARD

DISPLAY (INDOOR UNIT)

Reservation LED flickering (1Hz period)

Operation LED and reservation LED flickering (1Hz period)

Operation LED and filter LED flickering (1Hz period)

Reservation LED and filter LED alternating flickering (1Hz period)

Reservation LED and filter LED flickering (1Hz period)

Operation LED and reservation LED alternating flickering (1Hz period)

Filter LED flickering (1Hz period)

REMARK

Restored when the indoor temperature sensor is normal

Restored when the indoor pipe temperature sensor is normal

Restored when the outdoor temperature sensor is normal

Float switch detection

Re-detecting by operating off signal after restoring

Restored when outdoor pipe temperature sensor is normal

4-3

Page 23

Installation

Indoor unit

Wireless receiving

board

Wireless

remote

controller

Outdoor unit

Indoor unit

Wireless receiving

board

Wireless

remote

controller

Wired remote

controller

Outdoor unit

4-1-6 Example of remote controller control

1 chamber wireless remote controller single operation and 1 chamber wireless remote controller + wired remote controller combination control

Example of 1 chamber single operation

(wireless remote controller)

* In case of 1 chamber single operation (wireless remote controller+wired remote controller), both setting of wired remote controller

to MASTER/SLAVE is available.

Example of 1 chamber single operation

(wireless + wired remote controller)

1. Put off the power.

2. For the combined use of wired remote controller and wireless remote controller, put on the option switch(DS01)4 of wired remote controller.

✽ After resetting the option in the wired remote

controller, be sure to put the power on again so that the set option can be applied.

3. Putting off the option switch 4 of wired remote controller disables the control by wireless remote controller.

4. Put on the power.

4-1-7 PCB option and switch(DS01) setting of wired remote controller

DIP SWITCH NO

1 2 3

OPTION ITEM

Basic specification Indoor unit control Basic specification

SW ON

Group control

SW OFF

Indoor unit 1 chamber control

DEFAULT

Fixed to OFF

OFF

Fixed to OFF

4-4

Combined use of

wireless remote

controller

Able to operate of wired

remote controller

(SLAVE MODE)

Disable to operate the

wireless remote controller

(MASTER MODE)

OFF

Samsung Electronics

Page 24

4-1-8 Function comparison of wired remote controller vs wireless remote controller

Installation

In case of control for the wired remote controller and wireless remote controller installed individually, almost similar functions are performed, and in case of combined use of wired and wireless remote controllers, Enalbe/Disable

PART NAME

Operation ON/OFF Wind flow setting Wind volume setting Group operation Test operation

Operation mode setting

Reservation function Timer cancel Temperature setting

WIRED REMOTE CONTROLLER

ON/OFF available Up and down control available (Cassette model) Breeze/Weak/Strong/Wind auto adjustment available 16 chamber group operation available Test operation by test button

Settable of auto/cooling/ dehumidifying/blowing/heating

Start/stop/start-stop reservation available Timer cancel button provided (Duct model) Cooling : 18˚C ~ 30˚C

Heating : 16˚C ~ 30 ˚C settable

can be set at the wired remote controller for the wireless remote controller but the 16 chambers operation can be done only from wired remote controller.

WIRELESS REMOTE CONTROLLER

ON/OFF available Up and down control available (Cassette model) Breeze/Weak/Strong/Wind auto adjustment available 16 chamber group function not available Available by combination of button during the power

reset without test button Settable of auto/cooling/

dehumidifying/blowing/heating Start/stop/start-stop reservation available No timer cancel button Cooling : 18°C ~30°C

Heating : 16°C ~30°C settable Filter reset Centralized control display Self-diagnosis among the

group control Error display Master/slave setting

Filter reset button provided Displayed as centralized control To display while scanning the installed set

during reset Displayed as 2 digit segment Master/slave settable by PCB option switch

Filter reset button provided

No function

4-1-9 Option and dip switch setting(SW2) of ass'y main in PCB

DIP SWITCH

1 2 3 4 5

OPTION ITEM

VENTILATOR FAN

DRAIN PUMP

FLOAT SWITCH

FILTER CLEANING PERIOD

INDOOR FAN MOTOR SPEED

SW ON

Not installed

Installed Installed

1000 Hr

NORMAL SPEED

SW OFF

Installed Not installed Not installed

2000 Hr

HIGH SPEED

DEFAULT

Samsung Electronics

4-5

Page 25

4-2 Control of the Remote Controller

Indoor unit

"A" chamber

Wireless

receiving board

Wireless

remote

controller

Outdoor unit

Wired remote

controller

Indoor unit

"B" chamber

"C" ~"N" chamber

Wireless

receiving board

Wireless

remote

controller

Outdoor unit

Wired remote

controller

"O" chamber

Wireless

receiving board

Wireless

remote

controller

Wired remote

controller

"P" chamber

Wireless

receiving board

Wireless

remote

controller

Wired remote

controller

4-2-1

Chamber Group Control(Wireless remote controller + Wired remote controller system)

• The 16 chamber remote controller operation by wired remote controller can be simultaneously performed all for 16 chambers through setting the 16 chambers to one group through one wired remote controller.

• While operated in Group, the control by wireless remote controller installed in all chambers (“A” ~ “F”) is disabled except the wired remote controller installed in the “A” chamber and the simultaneous use with the option item, the centralized controller is also disabled.

4-2-2

1. Setting of indoor unit Main PCB

The group operation of 16 chambers and operation method by wired remote controller

• Put off all of set power installed in each room.

• Remove the centralized controller if any is used already.

• Remove CN20 connector and wire of main PCB of Indoor unit except the one installed in “A” with

reference of the figure.

• Connect the communicating line from “A” chamber to “F” chamber.(R1<->R1, R3<->R3)

• Connect the “R1”, “R2” and “R3” of indoor terminal board installed to the “R1”,”R2”,”R3” of wired

remote controller, respectively.

• Adjust the address of digital switch of indoor unit PCB in “A” chamber to “0”.

Adjust the address of digital switch of indoor unit PCB in “B” chamber to “1”. In such a way, adjust the address of digital switch up to chamber “F”.

4-6

Samsung Electronics

Page 26

• Put on the set power installed in each chamber.

Caution :

• During the connection, connect the “R1” of indoor unit terminal board installed in each chamber with “R1”.

• During the connection, connect the “R3” of indoor unit terminal board installed in each chamber with “R3”.

• Do not connect the terminal R2 of indoor unit terminal board from “B” to “F” chamber except A” chamber.

• The option item, centralized controller shall be removed since the simultaneous use with wired remote controller is disable during the group control.

• Adjust the address of indoor unit digital switch installed in each chamber so that it might not be duplicated.

2. Setting of wired remote controller

• Put off the set power where the wired remote controller is installed.

• Put on the option switch SW2(DS01) of wired remote controller.

• Put on the set power where the wired remote controller is installed.

Installation

Caution :

• The option can be applied when the power is put again after resetting the option of wired remote controller. Be sure to keep the set power on/off after option setting.

Samsung Electronics

4-7

Page 27

R1 R2 R3

Indoor unit

"A" chamber

R1 R2 R3

Indoor unit

"B" chamber "C" ~ "N" chamber

R1 R2 R3

Indoor unit

"O" chamber

R1 R2 R3

Indoor unit

"P" chamber

Wired remote

controller

Installation

4-2-3 Operation method of wired remote controller

Figure. 16 Chamber Group Control Connection Diagram

• Press the ON/OFF button of wired remote controller to be on. At the time, the set installed from A chamber to F chamber is getting on in order with the interval of 2 seconds.

• Select the operation of auto/cooling/dehumidi-fying/blowing/heating by pressing MODE BUTTON.

• Select breeze/weak/strong/wind auto by pressing the wind volume button.

• Adjust the temperature set button to set the desired temperature.

✽ For reference

• The communication between wired remote controller and indoor unit is made through the synchronization with the output signal of zero cross detect circuit, and when 50Hz power is used, it has the 50bps transmission speed and

Indoor unit

RECEIVE MODE

SEND MODE

Wired remote

controller

when it has 60Hz power it has 60bps transmission speed. The transmission data between the wired remote controller and indoor unit is shown as in the figure.

Since the communication data between wired remote controller and indoor unit is consisting of total 10Byte, 2 seconds are required when using 50Hz power.

• For the communicating time with 16 chambers during the normal operation, 32 seconds are required and for the time with 16 chamber during the reservation operation, 64 seconds are required

Caution :

• The power of each chamber shall be used with the one having the same frequency during the group operation by use of wired remote controller.

• The communicating line between the wired remote controller and indoor unit shall be of 100 m at maximum.

due to the increase of communicating data.

4-8

Samsung Electronics

Page 28

4-2-4 Startup method by wired remote controller

Installation

Startup in case of the “A” chamber single operation

• Put on the set power.

• Adjust the address of digital switch of indoor unit PCB to “0”.

• Put ON the option switch(DS01) N02 of wired remote controller PCB.

• Put on the set power.

• Press the test button of wired remote controller

Error Code

Indoor unit room thermistor error

Indoor unit pipe thermistor error

Outdoor unit thermistor error

Float switch open error

Meaning

for more than 3 seconds.

• The set is operated for 3 minutes by the forced cooling operation and the set is off after 3 minutes.

• The error occurring during the test operation is displayed on the wired remote controller windows and it shall be referred to the following table.

Checking Area

• Indoor unit thermistor available or not and disconnected

• Indoor unit PCB

• Indoor unit pipe thermistor

• Indoor unit PCB

• Outdoor unit thermistor

• Outdoor unit PCB

• Drain pump, float switch

• Drain system

• Dip SW2 of indoor unit main PCB (If the drain pump is not installed, SW2 and SW4 shall be at the Off position.)

Indoor unit ↔ outdoor unit communicating error

Wired remote controller ↔ indoor unit communication error

Outdoor unit pipe thermistor error

• Indoor unit ↔ outdoor unit communicating error

• Indoor unit ↔ outdoor unit communicating cable

• Indoor unit PCB, Outdoor unit PCB

• Wired remote controller ↔ indoor unit communication cable

• Indoor unit main PCB

• Outdoor unit pipe thermistor

• Outdoor unit PCB

Caution :

• Unless the address of digital switch of indoor unit PCB is set to “0” in case of “A” chamber single operation, the control by the wired remote controller is disabled.

• The power of SET shall be put on again after the resetting of wired remote controller option so that the the set option can be applied. Be sure to keep the power on/off of SET before and after the setting.

• The first digit of error code displayed during the single operation and group operation may be different. The first digit(MSB) stands for the address of the set where the error occurs. Since it is the single operation, the address of SET is “0”.

Samsung Electronics

4-9

Page 29

Installation

Startup of group operation

• Put off the power of SET.

• Adjust the addresses of digital switch of indoor unit PCB to “0”~”15”, respectively.

• Put on the option switch SW2 of wired remote controller PCB.

• Put on the power of SET.

• On the wired remote controller display, the digits “00” → “11” → “22” → are displayed up to “FF”. After “FF” display, the wired remote controller is automatically set to the preserved operation status of indoor unit of chamber “A”.

Error Code

Indoor unit room thermistor error

Indoor pipe thermistor error

Outdoor unit thermistor error

Meaning

• If the current SET of chamber “A” is ON, put the set off by pressing the ON/OFF button.

Only at the SET off of chamber “A”, the TEST mode is enabled.

• Press the TEST BUTTON of wired remote controller for more than 3 seconds.

• If the SET is operating for 3 minutes through forced cooling operation, the SET is off after 2 minutes.

• The Error occurring in the TEST operation displays in the wired remote controller display window and is referred to the following table.

Checking Area

• Indoor unit thermistor exist or not disconnected

• Indoor unit PCB

• Indoor unit pipe thermistor

• Indoor unit PCB

• Outdoor unit thermistor

• Outdoor unit PCB

Float switch open error

Indoor unit ↔ outdoor unit communication error

Wired remote controller ↔ indoor unit communication error

Outdoor unit pipe thermistor error

• Drain pump, float switch

• Drain system

• Dip SW2 of indoor unit main PCB (If drain pump is not installed, SW2 and SW4 shall be at OFF position.)

• Indoor unit ↔ Outdoor unit communication cable

• Indoor unit PCB, outdoor unit PCB

• Wired remote controller ↔ indoor unit communication cable

• Indoor unit main PCB

• Outdoor unit pipe thermistor

• Outdoor unit PCB

Caution :

• Test operation is disabled when the chamber “A” is on after initialization of wired remote controller.

• The communication time between wired remote controller and indoor unit is required for 2 seconds. If any one of set is ON, be sure to put it off by pressing the ON/OFF button and start the TEST operation after 35 seconds at minimum.(The communication time with all chambers : 16 x 2 seconds = 32seconds)

• For the reservation operation, the communication time between all 16 chambers is required for 64 seconds due to the increase of communication data.

• The first digit (MSB) of error code displayed during the group operation stands for the address of SET where the error occurs.

4-10

Samsung Electronics

Page 30

4-3 Controller

4-3-1 Appearance and characteristics of Centralized Controller

The centralized controller is installed on the wall.

The centralized controller is an optional accessory.

Operating lamp

All On button

All Off button

NOTE : Operating lamp comes on when at least one air conditioner

connected to the centralized controller is operating.

• Since the centralized controller has the relay equipment, the option mounted on the indoor unit, the On/Off can be set for 16 chambers through the modem communication.

• Linkage of wired remote controller to wired remote controller is available by 3 kinds of level.

BUTTON NAME

On/Off indicators On/Off buttons

Index

• The maximum extended distance of 1 Km is possible through modem communication. (the relay equipment is installed at the option item, indoor unit)

• The connection by non-polarity method is easy.

FUNCTION

ALL1 ALL0

"01" ~ "16"

Samsung Electronics

• To put on all 16 chambers' set.

• To put off all 16 chambers' set.

• To put on/off set assigned with the number.

4-11

Page 31

Installation

Indoor unit

"A"

chamber

Transmitter

Wireless

receiving board

Wireless

remote

controller

Outdoor unit

Wired remote

controller

Centralized controller

"C" ~"N" chamber

chamber

Indoor unit

"B"

chamber

Transmitter

Wireless receiving board

Wireless

remote

controller

Outdoor unit

Wired remote

controller

Indoor unit

"O"

chamber

Transmitter

Wireless

receiving board

Wireless

remote

controller

Outdoor unit

Wired remote

controller

Indoor unit

"P"

chamber

Transmitter

Wireless receiving board

Wireless

remote

controller

Outdoor unit

Wired remote

controller

01 02

Indoor unit

"A" chamber "B" chamber "P" chamber

"C" ~ "O" chamber

Transmitter Transmitter Transmitter

01 02 01 02

Indoor unit

01 02

Indoor unit

4-3-2 Example of the centralized control system configuration

Figure. 16 Chambers Centralized Control (wireless remote controller + wired

remote controller + centralized controller) System

4-3-3 Chambers Cnetralized Control System Connection Diagram

4-12

Samsung Electronics

Page 32

Installation

4-3-4 Centralized control operation method

1. Setting of indoor unit

• Put off the set to be installed.

• Put off the power of the centralized controller.

• Mount the Transmitter, the option item on the indoor unit set terminal board.

• Adjust the address of digital switch of Transmitter mounted. (Adjust the address of Transmitter mounted in chamber “A” to “0” and “B” to “1”... continue the adjustment up to “F” to “F”)

• Connect the terminals O1 and O2 of the terminal board mounted on the centralized controller to the O1 and O2 of the terminal board installed in chamber “A”.

• If the wired remote controller is installed, be sure to put off the SW2(DS01) of PCB option switch.

• Remove the centralized controllers installed at chamber “B” to chamber “F” if any except the A chamber.

• Adjust the address of digital switch of indoor unit PCB to “0”.

• Connect O1 and O2 of terminal board installed in chamber A to O1 and O2 of terminal board installed in chamber B.

• Continue to connect O1 and O2 of terminal board mounted on indoor unit in chamber B ~ F to O1 and O2 of terminal board of centralized controller(recommended).

2. Setting at centralized control side

• Adjust the applicable level of centralized controller with the reference of the table.

3. When the setting is finished at indoor unit and centralized controller,

• Put on the power of installation completed set of each chamber.

• Put on the power of centralized controller.

DIP SWITCH

LEVEL 0

LEVEL 1

LEVEL 2

Error Code

LED flickering

SW1

OFF

SW2

OFF

Communication error between indoor unit and centralized controller

SW3

OFF

Meaning

SW4

OFF

Set operation according to the final controlled one among the centralized controller, wire, and wireless

When centralized controller OFF : disable to control wired and wireless When centralized controller ON : enable to control wired and wireless

Enable to control only in the centralized controller Disable to control the wired and wireless remote controller

Transmitter, indoor unit, centralized controller

REMARK

Checking Area

Caution :

• The communication between centralized controller and Transmitter is modem method and there is no polarity but connect “O1” terminal to “O1” terminal and “O2” terminal to “O2”terminal.

• The address of Transmitter mounted on each indoor unit shall not be duplicated.

• After the resetting of operation level of centralized controller, it is not necessary to reset the power differently from that of wired remote controller. In other words, the operation level can be reset even during the operation if required.

Samsung Electronics

4-13

Page 33

Installation

4-3-5 Operation specification of wireless and wired remote controller while using the

centralized controller.

Centralized

controller

LEVEL 0

LEVEL 1

LEVEL 2

Wired remote

controller

MASTER

Wired remote controller has the priority of control over the wireless.

A area : to be operated be the final input of centralized controller and wired remote controller, and the wireless remote controller does not work even through installed.

B area : The wired remote controller operates only when the centralized controller is on but the wireless remote.

C area : only the centralized controller operates but the wired and wireless remote controller do not work.

SLAVE

Wired remote controller has not the priority of control over the wireless.

D area : to be operated by the final input of centralized controller, wired remote controller and wireless remote controller.

E area : the wired and wireless remote controller operate only when the centralized controller in on.

F area : only the centralized controller operates but the wired and wireless remote controller do not work.

4-14

Samsung Electronics

Page 34

4-4 Selecting Area for Installation

Select an area for installation that is suitable to the customer’s needs.

4-4-1 Indoor Unit

1. Make sure that you install the indoor unit in an area providing good ventilation. It must not be blocked by an obstacle affecting the airflow near the air inlet or the air outlet.

2. Make sure that you install the indoor unit in an area allowing good air handling and endurance of vibration of the indoor unit.

3. Make sure that you install the indoor unit in an area where there is no source of heat or vapor nearby or direct sunlight.

4. Make sure that you install the indoor unit in an area from which hot or cool air will spread evenly in the room.

10. Please use the given accessories to install the indoor unit. (set of slings)

• Check that the installed location is strong

enough to hang the indoor unit on.

• The distances of the following should be

limited: The lengths of refrigerant tube 30 m. The height difference between indoor and outdoor unit should be less than 15 m.

5. Make sure that you install the indoor unit in an area that provides easy pipe connection with the outdoor unit, and easy drainage for condensed water.

6. The ceiling should not be inclined by more than 2 degrees.

7. The distance between the indoor unit and the outdoor unit should not be longer than A. (recommended distance between two units is 5m.). and the height difference between the indoor unit and the outdoor unit should be less than B.

Model

30m ✳✳18/24✳✳ 50m ✳✳36/44✳✳ 15m ✳✳18/24✳✳ 25m ✳✳36/44✳✳

8. There should be enough space around the indoor unit to provide easy installation and service.

★

150cm

★

Air flow out

150cm

20 cm

20cm

Air flow in

100cm

Air flow in

20cm

Air flow out

20cm

Air flow out

★

150cm

9. There are 4 ways to select the number of air outlets (see the figure). The selection depends on the shape of the room and installation location of indoor units.

Samsung Electronics

Remark : The distance of “★” sign will equal 20 cm ,

if you close the air outlet on that side.

4-15

Page 35

0.15 m.

1.5 m.

Building

Wall

Installation

4-4-2 Outdoor unit

1. Make sure that you install the outdoor unit in an area not exposed to the rain or direct sunlight. (Install a separate sunblind if exposed to direct sunlight.)

2. Make sure that you install the outdoor unit in an area, not amplifying noise or vibration, especially to avoid disturbing neighbours. (Fix the unit firmly if it is mounted on a high place.)

3. Make sure that you install the outdoor unit in an area providing good ventilation and which is not dusty. It must not be blocked by any obstacle affecting the airflow near the air inlet and the air outlet.

4. Make sure that you install the outdoor unit in an area free from animals or plants.

5. Make sure that you install the outdoor unit in an area not blocking the traffic.

6. Make sure that you install the outdoor unit in area easy to drain condensed water.

10. If you install the outdoor unit in a location that has open airflow, you should install the outdoor unit in a direction that airflow out from the outdoor unit is perpendicular to the open air flow direction.

Open Air

Air flow out

Open Air

11. Install the oil trap according to the installation condition. (see the figure)

a. When the indoor unit is above the outdoor unit

Indoor unit

7. If installed on a desk, it should not be installed in a direction that puts open airflow is against airflow from the outdoor unit. It will make the air conditioner malfunction.

8. Do not let hot air flow into the outdoor unit because the air conditioner will malfunction. The hot air may come from other near-by the outdoor unit or heating equipment or itself.

9. If install the outdoor unit directly against the wall, the minimum distance between the outdoor unit and the wall should be 1.5 m.

Outdoor unit

b. When the outdoor unit is above the indoor unit

Radius 5cm

Oil trap (suction tube)

Oil trap (Must be installed every 6m)

Outdoor unit

Oil trap (Must be installed every 6m)

Indoor unit

4-16

Samsung Electronics

Page 36

Installation

12. You should leave spacing around the outdoor unit at least according to the figure for easy installation, service and ventilation.

0.1 m.

0.35 m.

13. Install the outdoor unit on a rigid base.

14. Fasten the outdoor unit to the base by using

bolts or nuts.

15. In case of hanging the outdoor unit, you should hang it on a rigid wall area and use right angle steel thickness of 4 mm. as a holder.

Rigid wall

Fasten right angle steel by using screws

Right angle steel thickness of 4 mm.

Caution :

It is harmful to the air conditioner if it is used in the following environments: greasy areas (including near machines), salty areas such as coast areas, areas where sulfuric gas is present such as hot spring areas, large variance in electricity voltage such as in a factory. Contact your dealer for advice.

Samsung Electronics

4-17

Page 37

Installation

WNER'S

INSTRUCTIONS

SPLIT-TYPE

OOM AIR CON

OWNE

NSTRUC

IONS

MAN

L DE I

TRUC

CIO

TRU

ONI PER L'USO

ANUAL D

INSTR

UÇ

MANUEL D'UTILISATIO

GEB

UCHSA

NWEISUNG

Splut-type Room Air

ndi

ioner

Aire

acon

dicionado do

ico sist

ema Split

Con

izionator

e d'

aria p

ambienti ad unità Separate

Aparelho de ar cond

onado

po S

matiseur de

type séparé

Get

ilte raumklim

nlage

4-4-3. Air Conditioner and Accessories

The following accessories are supplied with the air conditioner. The quantities are indicated in parantheses.

Basic Accessories

Owner’s

Instructions(1)

Insulation Pipe 3/8"(1) Insulation Pipe 5/8"(1) Insulation Pipe 3/4"(1)

Pad Stopper(1) Insulation Drain Sub

Installation

Manual(1)

Insulation Drain

Pipe(1)

(1)

Optional Accessories

Wired Remote Controller(1) KR-H50210

Wireless Remote Controller(1) KR-H40200

Cable-Tie(2) Cable Clamp(5) M4 X 16 Tapped

Battery(2) M4 X 16 Tapped

Pattern Sheet(1) Insulation

Cover Drain(1)

Insulation

Cover Pipe(2)

Insulation

Cover Band(1)

Cable-Tie(5) Drain Plug(1) Flexible Hose(1) M4 X 12 Tapped

Screw(4)

Bolt(4)

Flare Nut 3/8"(1) Flare Nut 5/8"(1) Flare Nut 3/4"(1)

Rubber Leg (4)

Screw(7)

Screw(2)

Remote Controller

Holder(1)

Receiver & Display Unit(1) (KRE-H1000)

Centralized Controller(1)

KR-H60110

Transmitter(1)

Cable-Tie(2) Cable Clamp(5) M4 X 16 Tapped

Screw(7)

Spacer Support(4) Cable-Tie(2)

KT-A00

Bio-Pure Filter(1)

KF-C1B0

M4 X 10 Tapped

Screw(4)

Air blocking Kit(1) KAB-A00

NOTE : Refrigeration pipes and their insulating materials, power cables are not supplied.

4-18

Samsung Electronics

Page 38

4-5 Installation Diagram of Indoor Unit and Outdoor Unit

4-5-1 Piping, Drain Hose Direction

Respect the clearances and maximum lengths indicated in the diagram below when installing the unit.

Liquid Refrigerant tube

Gas Refrigerant tube

“H”metres maximum

10cm

✴ The appearance of the outdoor unit

may be different from the diagram depending on the model.

Space requirement when installing the indoor unit

255mm

1000mm or more

230mm

17mm

Drain hose

15cm

1500mm or more

20mm

10cm

35cm

Model

✴✴18✴✴ ✴✴

✴✴

L30H

Samsung Electronics

4-19

Page 39

Installation

4-5-1 Piping, Drain Hose Direction

Respect the clearances and maximum lengths indicated in the diagram below when installing the unit.

Liquid Refrigerant tube

Gas Refrigerant tube

Drain hose

“H”metres

maximum

Model

✴✴36✴✴ ✴✴

✴✴

L50H

10cm

✴

The appearance of the outdoor unit may be different from the diagram

15cm

depending on the model.

Space requirement when installing the indoor unit (In case of✴✴36✴✴/✴✴44✴✴)

1500mm or more

305mm

1000mm or more

288mm

17mm

20mm

35cm

4-20

Obstacle

Samsung Electronics

Page 40

Installation

4-5-2 Preparing the Area for Installation

Preparing the Area for Installation of Indoor Unit

1. Measure the distance between ceiling and ceiling wall.

2. Place the pattern sheet on the ceiling.

3. Cut the ceiling to install the indoor unit by attaching the pattern sheet onto the ceiling. Then cut the pattern sheet and ceiling in section A and make a hole in the ceiling at the position of the hook. Use the plummet to mark the position on the ceiling wall, which is vertically in line with the hole in the ceiling, and make these 4 holes in the ceiling wall.

4. Insert bolt anchors, use existing ceiling supports or construct a suitable support as shown in figure.

950 (Dimensions of Front Panel)

880 (Cutting Dimensions of Ceiling)

766 (Space of Suspension Bolts)

5. Install the suspension bolts depending on the ceiling type.

IMPORTANT : Ensure that the ceiling is strong enough

to support the weight of the indoor unit. Before hanging the unit, test the strength of each attached suspension bolt.

Concrete

Insert

Hole in anchor Hole in plug

Suspension bolt(M8)-field supply

Ceiling support

6. Screw eight nuts to the suspension bolts making space for hanging the indoor unit.

840 (Outer Dimensions)

Samsung Electronics

840 (Outer Dimensions)

699 (Space of Suspension Bolts)

NOTE :

◆ Since the diagram is made of paper, it may shrink or stretch slightly due to temperature or humidity. For this reason, before drilling the holes maintain the correct dimensions between the markings; refer to page 2-3.

IMPORTANT : You must install the suspension bolts

more than four when installing the indoor unit.

7. Hang the indoor unit to the suspension bolts

880 (Cutting Dimension of Ceiling)

between two nuts.

NOTE: ◆ Tubing must be laid and connected inside the

ceiling when suspending the unit. If the ceiling is already constructed, lay the tubing into position for connection to the unit before placing the unit inside the ceiling.

8. Screw the nuts to suspend the unit. Cut a pad stopper and place it on the bracket at this time.

Pad stopper

Bracket

4-21

Page 41

Installation

9. Adjust the unit to the appropriate position considering the installation area for the front panel.

9-1 Place the pattern sheet on the indoor unit.

9-2 Adjust a space between the ceiling and the

indoor unit by using the gauge of dimensions.

9-3 Fix the indoor unit securely after adjusting

level of the unit by using a leveler.

9-4 Remove the pattern sheet, connect the other

cables and install the front panel.

Indoor Unit

17mm

Gauge of

Dimensions

20mm

Ceiling

4-5-3 Connecting the connection cord

The indoor unit is powered from the outdoor unit via the connection cord.

1. Remove the screws on the electrical component box and remove the cover plates.

2. Route the connection cord through the side of the indoor unit and connect the cable to terminals as shown in page 4-23, 4-24.

3. Route the other end of the cable to the outdoor unit through the ceiling & the hole on the wall.

4. Reassemble the electrical component box cover, carefully tightening the screws.

5. For further details on how to plug the other end of the connection cord into the outdoor unit, refer to page 4-25, 4-26.

Cable Clamp

(1ø, 220V-240V~, 50Hz)

Cable Clamp

(3ø, 380V-415V~, 50Hz)

4-22

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Page 42

Installation

Wiring Diagram

SUB PCB MAIN PCB

CN20 Connector

Receiver & Display Unit(Optional)

SW2

Sub PCB

Terminal block

CN9

CN7

SW1

DIP Switch

Indoor Unit

Main PCB

Jumper Wire

Rotary Digital Switch

Transmitter (Optional)

Centralized Controller (Optional)

Ventilator

Motor

Power

Communication

MAIN POWER

Outdoor Unit

MAIN POWER

Cable Specifications

The following electrical characteristics must be respected.

MODEL Power Sub switch Fuse Min. size of electric Wires from/to the indoor/outdoor unit

Size of electric input wires

20m or less 50m or less

ACH1800E/2400E, CH18ZA/24ZA, CH18CA/24CA

1Ø - 220V-240V~, 50Hz

30A

30A H07RN-F, 4G, 1.0mm H07RN-F, 3G, 2.5mm

H07RN-F, 3G, 4.0mm

Float

Switch

EARTH

Wired Remote Controller (Optional)

Note The power cables are not supplied with the air conditioner. The user should purchase them

separately.

Samsung Electronics

4-23

Page 43

Installation

Wiring Diagram

Sub PCB

Terminal block

Receiver & Display Unit(Optional)

SUB PCB MAIN PCB

CN9

CN7

SW1

Main PCB

Jumper Wire

Transmitter (Optional)

MAIN POWER

220-240V~, 50Hz

Cable Specifications

CN20 Connector

Centralized Controller (Optional)

Ventilator

Motor

SW2

Power

Communication

Outdoor Unit

Float

Switch

DIP Switch

Indoor Unit

Wired Remote Controller (Optional)

Rotary Digital Switch

MAIN POWER

3Ø, 380-415V~, 50Hz

4-24

The following electrical characteristics must be respected.

MODEL Power Sub switch Fuse Min. size of electric Wires from/to the indoor/outdoor unit

Size of electric input wires

20m or less 50m or less

ACH3600G/4400G, CH36ZA/44ZA, CH36CA/44CA

3Ø, 380V-415V~, 50Hz

30A

30A H07RN-F, 4G, 1.0mm H07RN-F, 3G, 2.5mm

H07RN-F, 3G, 4.0mm

Note

◆ The power cables are not supplied with the air conditioner. The user should purchase them separately.

◆ When connecting the cables to the main power, you should connect each cable(L1, L2 & L3) properly.

Samsung Electronics

Page 44

Installation

4-5-4 Connecting the Cables to the Outdoor

Unit

Two electric cables must be connected to the outdoor unit.

• The connection cord connecting the indoor unit to the outdoor unit

• The power cable connecting the auxiliary circuit breaker to the outdoor unit

1. Remove the terminal board cover on the side of the outdoor unit.

2. Connect the connection cord(L1, N1, C1, ) and power cable(N, L) to terminals as shown in the diagram.

3. Connect the power cable to the auxiliary circuit breaker. An all pole disconnection from the power supply must be incorporated in the fixed wiring(≥3mm).

4. Replace the terminal board cover, carefully tightening the screw.

Indoor Unit

EARTH

Power

Outdoor Unit

Communication

Power Cable

Auxiliary circuit

breaker

Wiring Diagram

Caution :

Keep the power cable and the connection cord in a steel pipe to protect them against liquids, outside impacts and so on.

4-25Samsung Electronics

Page 45

Installation

Two electric cables must be connected to the outdoor unit.

• The connection cord connecting the indoor unit to the outdoor unit

• The power cable connecting the auxiliary circuit breaker to the outdoor unit

1. Remove the terminal board cover on the side of the outdoor unit.

2. Connect the connection cord (Na, Lb, C, ) and power cable(L1, L2, L3, N, ) to terminals as shown in the diagram.

3. Connect the power cable to the auxiliary circuit breaker. An all pole disconnection from the power supply must be incorporated in the fixed wiring(≥3mm).

4. Replace the terminal board cover, carefully tightening the screw.

Indoor Unit

Power

Wiring Diagram

Communication

EARTH

Outdoor Unit

Power Cable

Auxiliary circuit

breaker

Caution :

Keep the power cable and the connection cord in a steel pipe to protect them against liquids, outside impacts and so on.

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Installation

4-5-5 Checking Correct Grounding

If the power distribution circuit does not have an earth or the ground does not comply with specifications, an grounding electrode must be installed. The corresponding accessories are not supplied with the air conditioner.

1. Select an grounding electrode that complies with the specifications given in the illustration.

Carbon plastic

yellow wire, 2mm

2. Determine a suitable location for the grounding electrode:

• In damp hard soil rather than loose sandy or

gravel soil that has a higher grounding resistance

• Away from underground structures or

facilities, such as gas pipes, water pipes, telephone lines and underground cables

• At least two metres away from a lightening

concassetteor grounding electrode and its cable

Steel core

PVC-insulated green/

x 3.5 m

Terminal M4

grounding

screw

3. Finish wrapping insulating tape around the rest of the pipes leading to the outdoor unit.

4. Install a green/yellow coloured grounding wire

(Ø1.6 mm, section 2 mm

or greater):

• If the grounding wire is too short, connect an

extension lead, in a mechanical way and wrapping it with insulating tape (do not bury the connection)

• Secure the grounding wire in position with

staples

NOTE : ◆ If the grounding electrode is installed in an

area of heavy traffic, its wire must be connected securely.

5. Carefully check the installation, by measuring the grounding resistance with an ground resistance tester. If the resistance is above required level, drive the electrode deeper into the ground or increase the number of grounding electrodes.

6. Connect the grounding wire to the electrical component box inside of the outdoor unit.

4-5-6 Drain Hose Installation

NOTE : ◆ The grounding wire for the telephone line

cannot be used to ground the air conditioner.

50cm

30cm

Samsung Electronics

Care must be taken when installing the drain hose for the indoor unit to ensure that any condensate water is correctly drained outside.

1. Insert the flexible hose to the drain tube outlet, if necessary.

NOTE : ◆ Attach the drain hose to the drain tube outlet

with the adhesives to prevent water leaks, then secure the hose with a band etc..(The

band is not supplied with the air conditioner.)

Drain tube outlet

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Installation

CCCCAAAAUUUUTTTTIIIIOOOONN

Do not install air bleeding tubes, as this may cause water to spray from the drain tube outlet.

Check that the indoor unit is level with the ceiling by using the leveler.

If it is necessary to increase the height of the drain hose somewhat, the portion directly after 30cm. If it is raised higher than 50cm, there can be water leaks.

Air bleeder

Ceiling

300mm or less

1~1.5m

Do not give the hose and upward gradient after the connection port. This will cause water to flow backwards when the unit is stopped, resulting in water leaks.

Do not apply force to the piping on the unit side when connecting the drain hose. The hose should not be allowed to hang loose from its connection to the unit. Fasten the hose to a wall, frame or other support as close to the unit as possible.

Upward gradient

Support pieces

1~1.5m

1/100 or more

Flexible hose

Band joint

Ceiling

✳✳18/✳✳24 ✳✳36/✳✳44

750 mm 750 mm B 200 mm 258 mm C 550 mm 482 mm

2. Install the drain hose so that its length can be as short as possible. Internal diameter of the drain hose should be the same or slightly bigger than the external diameter.

• Inner diameter of the drain hose

Flexible hose is connected

32mm(Outer diameter)

Flexible hose is not connected

27mm(Outer diameter)

NOTE : ◆ Give a slightly slant to the drain hose for proper

drainage of condensate.

NOTE : ◆ Secure the drain hose with the band joint and the

cable-tie not to be separated from the unit.

Insulation drain sub

Indoor Unit

Adhesives

Band(Not supplied)

Insulation drain pipe

Insulation cover drain

Caution :

Must fit tightly against body without any gap.

No gap

3. Wrap the drain hose with the insulation drain as shown in figure and secure it.

NOTE : ◆ When connecting the drain hose without the

flexible hose, you should attach it to the drain tube outlet with adhesives and tapes to prevent water leaks.

Caution :

Samsung Electronics4-28

Page 48

Installation

Testing the drainage

You should test the drainage after completing the installation. Prepare a little water about 2.0 liter.

1. Remove two screws on the cover drain pump and pull out the cover.

Cover drain pump

2. Pour water into the indoor unit as shown in figure.

4-5-7 Connecting the Indoor Unit Assembly

Piping

There are two refrigerant pipes of differing diameters:

• Asmaller one(9.52mm, 3/8") for the liquid refrigerant

• Alarger one(15.88mm, 5/8") for the gas refrigerant

• The thickness of tube should not less than 1.0mm.

• The inside of copper tube must be clean & has no dust.

The connection procedure for the refrigerant pipes varies according to the exit position of the pipes from the indoor unit, as seen when facing the indoor in the "A" side.

• Liquid refrigerant port

• Gas refrigerant port

Liquid refrigerant port

Gas refrigerant port

NOTE : ◆ If you do not pour water inside the water

supply intake, water may spill from the indoor unit.

3. Confirm that the water flows out through the drain hose.

NOTE : ◆ You can check the drainage only when the air

conditioner is turned on.

4. Reassemble the cover drain pump and the screws.

1. Remove the protection caps on the pipes and connect the assembly pipes to each pipe, tightening the nuts, first manually and then with a wrench, a spanner applying the following torque.

Outer Diameter Torque (kgf•cm)

19.52 mm (3/8") 300

15.88 mm (5/8") 750

Samsung Electronics

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Installation

2. Must use insulator which is thick enough to cover more than 10mm the refrigerant tube to protect the condensate water on the outside of pipe falling onto the floor and the efficiency of the unit will be better.

a. When the indoor unit is above the outdoor unit

Indoor unit

Outdoor unit

b. When the outdoor unit is above the indoor unit

Oil trap (Must be installed every 6m)

Outdoor unit

7. For further details on connecting up to the outdoor unit and purging the refrigerant circuit.

NOTE : ◆ For further details on connecting up to the

outdoor unit and purging the refrigerant circuit.

4-5-8 Cutting/Flaring the Pipes

Connect the pipe within 30m and cutting pieces will not be gone into the pipe as being clean to pipe section

1. Make sure that you have the required tools available (pipe cutter, reamer, flaring tool and pipe holder).

Oil trap (Must be installed every 6m)

Indoor unit

Radius 5cm

Oil trap (suction tube)

3. Cut off any excess foam insulation.

4. Be sure that there must be no crack or wave on the bended area.

5. It would be necessary to double the insulation thickness to prevent condensation even on the insulator when if the installed area is warm and humid.

6. Shape an oil trap as shown in figure. The oil trap must be formed every level difference of 6m.

2. If you wish to shorten the pipes, cut it with a pipe cutter, taking care to ensure that the cut edge remains at a 90° angle with the side of the pipe. Refer to the illustrations below for examples of edges cut correctly and incorrectly.

Oblique

Rough

Burr

3. To prevent any gas from leaking out, remove all burrs at the cut edge of the pipe, using a reamer.

Samsung Electronics4-30

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Installation

4. Slide a flare nut on to the pipe and modify the flare.

Outer Diameter(D) Depth (A)

19.52 mm (3/8") 1.8 mm

15.88 mm (5/8") 2.2 mm

19.05 mm (3/4") 2.2 mm

5. Check that the flaring is correct, referring to the illustrations below for examples of incorrect flaring.

Inclined

Cracked Uneven Thickness

Damaged Surface

4-5-9 Connecting the Drain Hose to the

Outdoor Unit

When using the air conditioner in the heating mode, ice may accumulate. During de-icing, the condensed water must be drained off safely. Consequently, you must install a drain hose on the outdoor unit, following the instructions below.

1. Make space more than 50mm between the bottom of the outdoor unit and the ground for installation of the drain hose, as shown in figure.

50mm min.

2. Insert the drain plug into the hole on the underside of the outdoor unit.

6. Align the pipes and tighten the flare nuts first manually and then with a wrench, applying the following torque.

Outer Diameter(D) Torque(kgf•cm)

19.52 mm (3/8") 300

15.88 mm (5/8") 750

19.05 mm (3/4") 750

7. For further details on how to connect up to the outdoor unit and purge the circuit.

Caution :

In case of welding the pipe, you must weld with nitrogen gas blowing.

3. Connect the drain hose to the drain plug. [Drain hose: ID(18mm), Drain plug: OD(18mm)]

30mm

4. Ensure that the drained water runs off correctly and safely.

Samsung Electronics

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Installation

4-5-10 Fixing the Unit in Position

The outdoor unit must be installed on a rigid and stable base to avoid any increase in the noise level and vibration, particularly if the outdoor unit is to be installed close to a neighbour. If it is to be installed in a location exposed to strong winds or at a height, the unit must be fixed to an appropriate support (wall or ground).

1. Position the outdoor unit so that the air flow is directed towards the outside.

2. Attach the outdoor unit to the appropriate

support using anchor bolts.

Capacity A B

UBH1800E, CH18ZAX, CH18CAX 582mm 340mm

UBH2400E, CH24ZAX, CH24CAX 660mm 340mm

UCH3600G, UCH4400G

CH36ZAX, CH44ZAX 840mm 415mm

CH36CAX, CH44CAX

3. If the outdoor unit is exposed to strong winds, install shield plates around the outdoor unit, so that the fan can operate correctly.

Samsung Electronics4-32

Page 52

• Use the vacuum pump to remove N2 gas or air inside the indoor unit and pipes.

Installation

1. Tighten all pipe connections (A, B, C, D) to prevent any leakage.

2. Check that the suction and liquid valves are turned off clockwise to close the outdoor unit.

3. Remove the cap on the opposite side of the Suction tube connection (A) and connect a hose from the pressure guage of which other end is connected to the vacuum pump.

4. Operate the vacuum pump enough until the pressure guage indicates “0”.

Liquid

Valve

3-way valve

Suction

Valve

For mounting other end of hose when not in use

Suspension hook

Finger tight fittings

Connected to high pressure side

Charging line

Vacuum pump

High pressure gauge

Hand wheel

5. Disconnect the hose from the suction valve cafully not to break the vacuum.

6. Turn on the suction and liquid valves counterclockwise to open the outdoor unit to the indoor unit.

7. Check the leakage on the connections. (A, B, C, D)

8. Check each valve for leakage.

Indoor Unit

Half union

Liquid

pipe side

Liquid valve

Suction(gas) pipe side

Suction(gas) valve

Outdoor Unit

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Installation

4-5-11 Refrigerant Refill Procedure

1. Refrigerant Refill

•Refill the air-conditioner with refrigerant when the refrigerant has leaked during the installing or using

1. Turn the suction valve clockwise to close, connect the pressure gauge(low pressure side) to the service valve, and open the suction valve again.

Suspension hook

2. Connect the tank to refill with Refrigerant

3. Set the unit to cool operation mode.

4. Check the pressure indicated by the pressure gauge(low pressure side). *Standard pressure should be

4.5~5.5kg/cm2in a regular, operation mode.

5. Open the refrigerant tank and fill with refrigerant until the rated pressure is reached. *It is recommended not to pour the

refrigerant in too quickly, but gradually while operating a pressure valve.

Liquid Valve

3-way valve

Suction

Valve

For mounting other and of hose when not in use

High pressure gauge

Hand wheel

Finger tight fittings

Connected to high pressure side

Charging line

4-34

6. Stop operation of the air conditioner.

7. Close the suction valve, disconnect the pressure gauge, and open the suction valve again.

8. Close the cap of each valve.

Caution :

• You must not add the R407C refrigerant without purging and vacuum procedure.

Samsung Electronics

Page 54

Installation

2. Refrigerant Adjustment (Supplement)

Adding Refrigerant

Refrigerant must be added if the piping measures more than 5 metres in length (maximum of “A” metres). The quantity of additional refrigerant is variable according to the installation situation. Thus, make sure the outdoor unit situation before adding refrigerant. This operation can only be performed by a qualified refrigeration specialist.

☛ If you have used... Then...

More than 5 metres “B”g of refrigerant (“C”) of the pipes must be added for each

extra metre.

Less than 5 metres The purge time is normal. of piping

4-5-12 “Pump down” Procedure

• ’Pump down’ shall be carried out when an evaporator replaced or when the unit is relocated in another area.

1. Remove the caps from the liquid valve and the suction

valve.

2. Turn the suction valve clockwise to close and connect

a pressure gauge(low pressure side) to the service valve, and open the suction valve again.

Type

ACH1800E, CH18ZA ACH2400E, CH24ZA ACH3600G, CH36ZA ACH4400G, CH44ZA

CH18CA CH24CA CH36CA CH44CA

For details about the installation situation(a or b) ❋ refer to 4-30 page

30 30 50 50 30 30 50 50

Suction

valve

Relocation of the Air Conditioner

Liquid valve

R-22

R407C

3. Set the unit to cool operation mode.

(Check if the compressor is operating.)

4. Turn the liquid valve clockwise to close.

5. When the pressure gauge indicates “0” turn the

suction valve clockwise to close.

6. Stop operation of the air conditioner.

7. Close the cap of each valve.

Samsung Electronics

• Refer to this procedure when the unit is relocated.

1. Carry out the pump down procedure (refer to the details of ‘pump down’).

2. Remove the power cord.

3. Disconnect the assembly cable from the indoor and outdoor units.

4. Remove the flare nut connecting the indoor unit and the pipe.

5. Disconnect the pipe connected to the outdoor unit. At this time, cover the valve of the outdoor unit and the other pipe using a cap or vinyl plug to prevent foreign material from entering.

6. Make sure you do not bend the connection pipes in the middle and store together with the cables.

7. Move the indoor and outdoor units to a new location.

8. Remove the mounting plate for the indoor unit and move it to a new location.

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Installation

4-5-13 Performing Leak Tests

Before completing the installation (insulation of the hose and piping), you must check that there are no gas leaks.

To check for gas leaks on the... Then, using a leak detector,

check the...

Indoor unit Flare nuts at the end of sections A

and B.

Outdoor unit Valves on sections C and D.

Caution :

• The CH✴✴CAmodels need a new refrigerant, R407C. Thus, when refrigerant leakage occurs in use, you must purge and make vacuous with a vacuum pump before adding the refrigerant. Then put the optimal quantity of refrigerant newly. In addition, the refrigerant must be added in liquid phase.

4-36 Samsung Electronics

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Installation

4-5-14 Installing the Front Panel

1. Open the electrical component box cover removing the screws.

2. Connect the cables of the front panel to the PCB as shown in figure.

Front Panel

3. Close the electrical component box cover and secure the screws.

Front panel fixing holes

Eye

5. Secure the front panel to the indoor unit using

the bolts(4EA). HEX ; M6 x L30

Air blocking kit

NOTE : ◆ When user’s optional accessory is a wireless

remote controller, you have to install the receiver & display unit.

NOTE : ◆ There are four kinds of air blocking kits. Fill

up the air outlet(s) with one or more kits depending on the situation, then install the insulation to block air completely.

NOTE : ◆ After removing the cushion Blocking that

is installed in the air outlet of ACH3600G/4400G and CH36ZA/44ZA to install the air blocking.

4. Install the front panel using two hooks on the both sides of the indoor unit.

Hook and Eye

Samsung Electronics

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Installation

4-5-15 Setting Up Option Switches

IMPORTANT : Before setting up the option switches, always make sure that you have turned off the main power.

Main PCB in the Indoor Unit

Rotary Digital Switch(SW1)

A user can operate up to sixteen air conditioners by using the wired remote controller. Before controlling more than one air conditioner, you should connect the air conditioner each other. And you must assign addresses to the air conditioners. For further details on connecting air conditioners. If the user would like to controller only one air conditioner, make sure that the arrow is at “0” position.

Turn the arrow to the desired position referring to the table below.

Switch No.

0 1 2 3 4 5 6 7

Number of

indoor unit(s)

One Two

Three

Four

Five

Six

Seven

Eight

Switch No.

9 A B C D E

Number of

indoor unit(s)

Nine

Ten

Eleven

Twelve

Thirteen

Fourteen

Fifteen

Sixteen

DIP Switch(SW2)

Adjust the switch to the desired position referring to the table below.

Switch

No.

1 2 3 4 5

Option Item

Ventilator Fan Drain Pump Float Switch Filter Cleaning Cycle Indoor Fan Motor Speed

Note : ◆ Make sure that the No.2 and No.3 switches are at “ON” position.

Switch Position

ON OFF

Not installed Installed Installed 1,000 hours Normal

Installed Not installed Not installed 2,000 hours High speed

Note

Not supplied

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4-5-16 Setting Up Option Switches (Cont.)

Jumper Wire(SW05)

You can adjust the setting temperature for heating. Cut off the SW05, depending on the situation.

Option Item Situation of the Switch Note

Installation

Setting temperature +2°C Setting temperature +5°C

Short Open

Preset Position

Sub PCB in the Indoor Unit

CN20 Connector

Remove the CN20 connector in the sub PCB, if necessary, referring to the table below. (This procedure is needed only when the user would like to control a group by using the wired remote controller.)

Address Situation of the CN20 Connector

1 - F

Note : ◆ Up to 16 air conditioners can be controlled with one wired remote

controller.

Note : ◆ If the user does not want to control a group, do not remove the

CN20 Connector.

Connected

Removed

Unit A

(Address 0)

CN20 Connector

Unit B

(Address 1)

Unit C

(Address 2)

Sub PCB in the Indoor Unit

Dip Switch(DS01)

Adjust the DIP switch No.2 and/or No.4 to the desired position referring to the table below. You must not adjust the switch 1 and 3. They should be in “OFF” position at all times.

Switch

No.

Number of air conditioner(s) controlled

by the wired remote controller Using wireless remote controller

Samsung Electronics

Option Item

Switch Position

ON OFF

Group

controlling

Can be used

One indoor unit

controlling

Cannot be used

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Installation

Centralized Controller

DIP Switch(DS01)

Adjust the DIP switch to the desired position referring to the table below.

Switch

Position

Note : ◆ You cannot install the centralized controller when the wired remote controller for a group has already been installed.

1234 Meaning

No.

OFF

The air conditioner is operated by the controller

OFF

adjusted last among the wired remote controller, wireless remote controller and centralized controller.

A user can use wired/wireless remote controller when the centralized controller is switched on.

And he/she cannot use the remote controller(s) when the centralized controller is switched off.

The air conditioner(s) can be controlled by only the

OFF

centralized controller. The user cannot use the wired/wireless remote controller in this case.

Transmitter

Rotary Digital Switch(DS01)

A user can turn on/off up to sixteen air conditioners by using the centralized controller. To use the controller, you must assign addresses to the air conditioners. For further details on connecting air conditioners. If the user would like to controller only one air conditioner, make sure that the arrow is at “0” position.

Turn the arrow to the desired position referring to the table below.

Switch No.

0 1 2 3 4 5 6 7

Number of

indoor unit(s)

One Two

Three

Four Five

Six

Seven

Eight

Switch No.

9 A B C D E

Number of

indoor unit(s)

Nine

Ten Eleven Twelve

Thirteen

Fourteen

Fifteen Sixteen

Original Position of Option Switches

The option switches are preset by the manufacturer. Refer to the table below, if necessary.

Option Place

Main PCB in the

indoor unit

Sub PCB in the indoor unit

Wired Remote Controller

Centralized Controller

Transmitter

Note : ◆ Before setting up the options, always make sure that you have switched off the main power.

Note : ◆ After adjusting the options, you should supply the power. Otherwise, the options will not be applied.

Component No. State

Rotary Digital Switch(SW1)

DIP Switch(SW2)

Jumper Wire(SW05)

CN20 Connector DIP Switch(DS01) DIP Switch(DS01)

Rotary Digital Switch(DS01)

SHORT

Connected

ALL OFF ALL OFF

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Installation

4-5-17 Wired Remote Controller Installation

(Optional)

Accessories

Wired Remote Controller(1) KR-H50210

1. Disassemble the wired remote controller by using two grooves on the top of it.

2. Secure the rear cover of the wired remote controller on the wall with two screws.

3. Connect the R1, R2 and R3 terminals in the wired remote controller to the R1, R2 and R3 terminals on the electrical component box each.

Cable-Tie(2) Cable Clamp(5) M4 X 16 Tapped

Screw(7)

Caution :

• Do Not keep the wired remote controller cables with a 220V cable because the remote controller cables have low voltage.

• Do Not input 220V power to the R1, R2 and R3 in the wired remote controller.

Note : Cable Specifications

Cable type

Size of cables

Max. length of electric wires from

the indoor unit to the wired remote

controller

Double-insulation, 3G

0.3mm2~0.75mm

100m

4. Reassemble the wired remote controller.

Caution :

• The optional kits must be installed by an installation specialist.

• Before installing the optional kits, ensure that you have turned off the main power.

• All optional kits cables should be installed according to the national wiring rules and you must install them in the wall not to be touched by users.

Samsung Electronics

Indoor Unit

Wired Remote Controller

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Installation

4-5-18 Centralized Controller Installation

(Optional)

Accessories

Centralized Controller(1) KR-H60110

Transmitter(1)

KT-A00

Cable-Tie(2) Cable Clamp(5) M4 X 16 Tapped

Screw(7)

Spacer Support(4) Cable-Tie(2) M4 X 16 Tapped

Screw(7)

1. Open the centralized controller cover by using two grooves on the top of it.

5. Connect the O1 and O2 terminals of the centralized controller to the O1 and O2 terminals on the electrical component box as shown in figure.

Caution :

•Do NOT keep the centralized controller cables with a 220V cable because the centralized controller cables have low voltage.

2. Secure the rear cover of the centralized controller on the wall with two screws.

3. Secure the transmitter with four spacer supports into the electrical component box.

Electrical component box

Sub PCB

Transmitter

Main PCB

4. Connect the cable from the PCB to the transmitter. And connect another cable from the O1, O2 terminals to the transmitter as shown in figure.

MAIN POWER

Note : Cable Specifications

Cable type

Size of cables

Max. length of electric wires from

the indoor unit to the centralized

controller

Centralized Controller

Double-insulation,

2G(Shield Cable)

0.75mm2~1.25mm

1km

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Installation

6. Connect the power cables.

Note : Cable Specifications

Cable type

Size of cables 0.75mm2~1.25mm

Double-insulation,

Power Supply

220V-240V~, 50Hz

7. Reassemble the centralized controller.

Caution :

•The optional kits must be installed by an installation specialist.

•Before installing the optional kits, ensure that you have turned off the main power.

•All optional kits cables should be installed according to the national wiring rules and you must install them in the wall not to be touched by users.

4-2-19 Receiver & Display Unit Installation

(Optional)

Accessories

2. Remove the part of the front panel.

3. Secure the receiver & display unit with the screws.

4. Connect the end of the connector wire to the receiver & display unit and connect the other end of the wire to the electrical component box as shown in figure.

Wireless Remote Controller(1) KR-H40200

Receiver & Display Unit(1) (KRE-H1000)

Battery(2) M4 X 16 Tapped

Screw(2)

Remote Controller

Holder(1)

In case of using the wireless remote controller, you must install the receiver & display unit to the front panel before fixng the panel.

1. Disassemble three screws on the place where you would like to install the receiver & display unit, inside the front panel.

Receiver & Display Unit

Caution :

•Do NOT keep the wired remote controller cables with a 220V cable because the remote controller cables have low voltage.

Caution :

•Optional kits must be installed by an air conditioner specialist.

•Before installing the optional kits, ensure that you have turned off the main power.

Samsung Electronics

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Installation

4-5-20 Bio-Pure Filter Installation (Optional)

The air conditioner can be fitted with a Bio-Pure filter to remove minute dust particles. The service life of the filter is approximately three months depending on the time during which the air conditioner is used.

1. Remove the vinyl packing from the filter.

Note : Do not remove the packing from a bio-pure filter

until you wish to use the filter, as it will lose its properties.

2. Open the front grille by pulling the tabs on the grille.

3. Remove the safety clips to open the grille completely.

4. Pull out the air filter.

5. Locate the bio-pure filter on the center of the air filter.

6. Secure the bio-pure filter with four screws.

7. Reinstall the filter and the front grille.

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4-5-21. Controlling a Group

* You should adjust the option switches in the electrical component box or on the PCB of the wired remote

controller.

* Before setting up the option switches, always make sure that you have turned off the main power.

* After adjusting the options, you should supply the power. Otherwise, the options will not be applied.

With Wired Remote Controller

Installation

1. Connect the R1, R2 and R3 terminals in the wired remote controller to the R1, R2 and R3 terminals in any indoor unit “A” each.

2. Connect the R1 and R3 terminals in the indoor unit “A” to the R1 and R3 terminals in another indoor unit “B”.

Caution :

When connecting the cables, you must keep these :

• The R1 terminals must be connected to the R1s.

• The R3 terminals must be connected to the R3s.

• Do not connect the R2 terminals to anywhere. If you connect R2 terminals, the PCB will be damaged.

3. Connect the R1 and R3 terminals of “B” to any indoor unit “C” and connect the others as the same way.

4. Adjust the rotary digital switch in the main PCB to the desired position referring to the table below.

Switch No.

0 1 2 3 4 5 6 7

Number of

indoor unit(s)

One Two

Three

Four Five

Six

Seven

Eight

Switch No.

9 A B C D E

Number of

indoor unit(s)

Nine

Ten Eleven Twelve

Thirteen

Fourteen

Fifteen

Sixteen

Unit A

Unit B

Unit C

CN20 Connector

5. Remove the CN20 connectors on the sub PCBs except the unit connected with remote controller(Address 0).

6. Adjust the DIP switch No. 2 in the wired remote controller to “ON” position.

Note : You cannot install the centralized controller when the wired remote

controller for a group has already been installed.

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Installation

With Centralized Controller

A user can turn on/off up to sixteen air conditioners by using the centralized controller. In this case, the user can turn on/off all air conditioners or a specific air conditioner connected with the centralized controller. And each air conditioner can be controlled by its own remote controller(s) depending on the setting.

1. Connect the O1 and O2 terminals in the centralized controller to the O1 and O2 terminals in the indoor unit “A”.

2. Connect the O1 and O2 terminals in the indoor unit “A” to the O1 and O2 terminals in another indoor unit “B”.

3. Connect the O1 and O2 terminals of “B” to any indoor unit “C” and connect the others as the same way.

4. Adjust the DIP switch(DS01) in the centralized controller to the desired position referring to the table below.

Switch

Position

1234 Meaning

No.

OFF

The air conditioner is operated by the controller

OFF

adjusted last among the wired remote controller, wireless remote controller and centralized controller.

A user can use wired/wireless remote controller when the centralized controller is switched on.

And he/she cannot use the remote controller(s) when the centralized controller is switched off.

The air conditioner(s) can be controlled by only the

OFF

centralized controller. The user cannot use the wired/wireless remote controller in this case.

Centralized Controller

Unit A Unit B Unit C

5. Adjust the rotary digital switch on the transmitter to the desired position referring to the table on page 4-40.

Centralized controller

Note : You cannot install the centralized controller when the wired remote controller for a group has already been installed.

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Installation

4-5-22. Checking and Testing Operations

To complete the installation, perform the following checks and tests to ensure that the air conditioner is operating correctly. Review all the following elements in the installation:

◆ Piping connection tightness to detect any gas

leakages

◆ Connecting wiring

◆ Heat-resistant insulation of the piping

◆ Drainage

◆ Earthing wire connection

◆ Correct operations(follow the steps below)

Wired Remote Controller

1. Supply the power and switch on the air conditioner.

Note : If the air conditioner does not work because of

switching off the thermistor sensor caused by the room temperature, you can operate the air conditioner by using Test button.

Wireless Remote Controller

1. Supply the power and switch on the air conditioner.

2. Remove the remote controller batteries.

3. Insert the batteries pressing the On Timer and Off Timer buttons at the same time.

2. Press Test button more than 3 seconds without selecting any mode.

: The air conditioner runs in COOL mode

Result for 3 minutes.

Note : If the error code is displayed, fix the error.

And supply the power, restart testing.

3. Check that user's option(s) and the outdoor unit operate properly.

Note : Do not attempt to select the operating mode or to

adjust the temperature. It may switch the outdoor unit off.

4. Press the Swing( ) button and check that the air flow blades work properly.

5. The air conditioner will switch it off automatically after 3 minutes.

4. Stop pressing the buttons after inserting the batteries.

5. Press the (ON/OFF) button. Result:

The air conditioner runs in COOL mode for 3 minutes.

6. Check that user ’s option(s) and the outdoor unit operate properly.

Note : Do not attempt to select the operating mode or to

adjust the temperature. It may switch the outdoor unit off.

7. Press the Swing( ) button and check that the air flow blades work properly.

8. The air conditioner will switch it off automatically after 3 minutes.

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Installation

4-5-23. Troubleshooting

Wired Remote Controller

If the error occurs, and the error code are displayed on the wired remote controller. The error code blinks for 5 seconds and it disappears. If you would like to see the error code after disappearing it, press the Test button.

Meaning of Error Code

The error code is composed of two-digit figures or letters. The first means (∗) an indoor unit address and the second means an error code.

Error Code

∗

1 Indoor unit thermistor sensor error

∗

5 Indoor unit pipe sensor error

∗

6 Outdoor unit thermistor sensor error

∗

9 Float switch error

∗

A A Indoor and Outdoor

communication error

∗

C Wired remote controller communication

error

∗

Outdoor pipe sensor error

Meaning

Checking area

◆ Indoor unit thermistor sensor

◆ PCB of the indoor unit

◆ Indoor unit pipe sensor

◆ PCB of the indoor unit

◆ Outdoor unit thermistor sensor

◆ PCB of the outdoor unit

◆ Drain pump, Float switch

◆ Drain system

◆ DIP switch(SW2) of the indoor unit

(The No.2 and No.4 switches must be at “ON” postion.)

◆ Communication cables of indoor and outdoor units

◆ PCB of indoor and outdoor units

◆ Wired remote controller cables, Wired

remote controller

◆ Main/Sub PCB of the indoor unit

◆ Outdoor pipe sensor

◆ PCB of the outdoor unit

∗

Example : “39” means the address “3” indoor unit has a trouble with a float switch.

Three phase power incorrect connecting error(In case of three phase power models)

◆ Three phase power connecting

◆ PCB of the outdoor unit

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Wireless Remote Controller

If the error occurs, the indicators on the receiver & display unit displays the error.

Meaning of Error Code

Installation

Indicators

Timer

Operating

▲

▲▲

Filter

▲

▲▲

Indoor unit thermistor sensor error

Indoor unit pipe sensor error

Outdoor unit thermistor sensor error

Float switch error

Indoor and Outdoor communication error

Wireless remote controller communication error

Outdoor pipe sensor error

Three phase power incorrect connecting error(In case of three phase power models)

Meaning

Checking area

◆ Indoor unit thermistor sensor

◆ PCB of the indoor unit

◆ Indoor unit pipe sensor

◆ PCB of the indoor unit

◆ Outdoor unit thermistor sensor

◆ PCB of the outdoor unit

◆ Drain pump, Float switch

◆ Drain system

◆ Communication cables of indoor and

outdoor units

◆ PCB of indoor and outdoor units

◆ Wireless remote controller cables,

Wireless remote controller

◆ Main/Sub PCB of the indoor unit

◆ Outdoor pipe sensor

◆ PCB of the outdoor unit

◆ Three phase power connecting

◆ PCB of the outdoor unit

: OFF : Blinking : Blinking at once : Blinking alternately

▲▲

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MEMO

4-50 Samsung Electronics

Page 70

5. Disassembly and Reassembly

Stop operation of the air conditioner and remove the power cord before repairing the unit.

Indoor Unit

No. Part name Procedures Picture

Front Grille & Filter 1. Open the front grille by pushing the tabs

on the grille.

IMPORTANT

You must give attention when disassembling the front grille and must check the safety clips have been installed. If you don't ensure them, the front grille will drop suddenly and you will be hurt.

2. Remove the front grille. 2-1. Remove the safety clips. 2-2. Open the front grille about 45˚ and

pull it forward.

Samsung Electronics

3. Pull out the filter air.

Safety Clip

5-1

Page 71

Disassembly and Reassembly

No. Part name Procedures Picture

4. Slowly loosen the four bolts holding the panel to the assembly.

Front panel fixing holes

Eye

5. Open the electrical component box cover removing the screws. (3EA)

6. Disconnect the two cables between the assembly and the panel.

- Stepping motor connectors. 6-1. Disconnect the three cables between

the assembly and the panel.

- Stepping motor connector

- Receiver & Display unit connector (Optional)

Front Panel

5-2

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Disassembly and Reassembly

No. Part name Procedures Picture

<*Optional>

7. Separate the front panel using two hooks on the both sides of the indoor unit.

Receiver & Display Unit

Electronic part

Hook and Eye

Do !-1, !-2, !-3 and !-4 above

1. Remove the screws(6EA) on the electrical component box and remove the cover plates.

2. Open the control box.

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Disassembly and Reassembly

No. Part name Procedures Picture

3. Disconnect the other end of the cable to the outdoor unit through the ceiling & the hole on the wall between the control box and the assembly.

Method 1

Fan and motor

Do !above

1. Disconnect FAN MOTOR wire connector, thermistor wire connector, drain pump wire connector.

2. Disconnect wire connects to capacitor.

5-4

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Disassembly and Reassembly

No. Part name Procedures Picture

Fan and motor 3. Disconnect float switch wire connected to

terminal board (F1, F2).

4. Disconnect all connectors connected to PCB.

5. Remove PCB’s from assy case PCB.

6. Remove the screws(9EA) for disconnection of Bell mouth and cushion drain.

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Disassembly and Reassembly

No. Part name Procedures Picture

Fan and motor

Pump

5-6

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Page 76

Disassembly and Reassembly

No. Part name Procedures Picture

Pump

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5-7

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Disassembly and Reassembly

No. Part name Procedures Picture

Fan and motor 7. Seperate Bell mouth and Box Ass’y from

cushion drain.

8. Loosen the nut and separate the assy holder fan.

9. Lift down carefully the Ass'y fan.

5-8

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Page 78

Disassembly and Reassembly

No. Part name Procedures Picture

Fan and motor 10.Separate the motor connector wire and

separate the wire holder fixed the bottom floor.

11.Remove the screw fixed onto the bracket wire fixed on the bottom of product and remove screw fixed noto earth wire and separate carefully the ass'y motor in from the product after separation of nut of ass'y motor in and grommet mount motor.

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Disassembly and Reassembly

No. Part name Procedures Picture

Fan and motor

Method 2.

Pump

❈ Do #-1, 2, 3 above

1. For separation of Ass'y cushion drain from the main body

! Cabinet guide A (2EA) @ Cabinet guide B (1EA) # Remove each cabinet power cord. $

Remove the obstacles of pump drain and ass'y sensor float wire due to the movement of BKT wire.

5-10

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Page 80

Disassembly and Reassembly

No. Part name Procedures Picture

Pump 2. For the separation of ass'y cushion drain

form the main body, remove the fixing screw of bracket at each corner of cushion drain.

3. Take out the CAP drain socket inserted in the ass'y drain cushion to remove the condensate in the drain cushion.

* Care must be taken for the taking out

the condensate water.

4. Lift down carefully the Ass'y cushion drain from the main body.

5. Loosen three screws fixing the pump drain.

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Disassembly and Reassembly

No. Part name Procedures Picture

Pump

6. Separate the hose drain inserted in the outlet of pump drain.

7. Separate from the BKT pump the pump drain separated from the main body from the BKT pump.

Heat exchanger

❈ Do $-1 ~ $-4

1. Separate the cover pipe at the side of

main body from main body.

2. Separate the partition front evap fixing the

heat exchanger to the base of main body.

5-12

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Disassembly and Reassembly

No. Part name Procedures Picture

3. Separate the holder evap (2 EA) fixing the heat exchanger to the base of main body.

4. Separate holder guide evap (4 EA).

5. Lift up the heat exchanger from the main body.

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Page 83

Disassembly and Reassembly

No. Part name Procedures Picture

Front panel

-Cover Front

❈ Do !above Push 3 cover front fixing screws inside the front panel and snap fixing part to separate the cover front.

5-14

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Page 84

Disassembly and Reassembly

No. Part name Procedures Picture

Front panel

- Stepping Motor

❈ Do !above

1. Loosen each one of fixing screw at the corner part, !cushion side-A and cushion

side-B inside the front panel, and then lift it up.

2. Remove !the screw of housing motor L/R fixed at the corner part of front panel inside and separate

Blade-H.

3.!Separate the stepping motor from the

housing motor L/R and

separate the motor wire connected.

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Disassembly and Reassembly

No. Part name Procedures Picture

(

Front panel

- Cushion-A

Front panel

- Bio-pure filter (Optional)

❈ Do !above Remove two screws fixing cushion-A inside the front and lift it up.

❈ Do 1-!, 1-@and 1-#above

1. Separate the bio pure filter from the filter air. (remove 4 fixingscrews)

5-16

2. Lift up the bio pure filter case to take the filter out.

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Disassembly and Reassembly

Outdoor Unit (18K/24K)

No. Part name Procedures Picture

Cabinet

Fan Motor & Propeller Fan

1) Turn off the unit and remove the power cable

2) Remove the top cover.

3) Remove the control box cover.

4) Unplug the ass'y cable.

5) Remove the cabi-side.

6) Remove the cabi-front.

* When you assemble the parts, check if the

each parts and electric connectors are fixed firmly.

1) Do Procedure 1 above.

2) Remove the nut flange. (Turn to the right to remove as it is a left turned screw)

3) Disassemble the propeller fan.

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Disassembly and Reassembly

Outdoor Unit (36K/44K)

No. Part name Procedures Picture

Outdoor unit

1) Packaged air conditioner outdoor unit

2) The binders of the front side should be separated.

3) The flank and the binders should be separated from each other.

5-18

Control box

1) Connect distributed wires in the control box.

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6. Trouble Shooting

■ Trouble shooting by outdoor unit error code

ERROR CODE

E1 E5 E6 E9 EA EC ED

Indoor unit room thermistor error Indoor unit pipe thermistor error Outdoor unit thermistor error Float switch open error Communication error between indoor unit and outdoor unit Communication error between wired remote controller and indoor unit Outdoor unit pipe thermistor error Reverse power of 3 phase power source detected (3 phase model)

ERROR DESCRIPTION

■ Trouble shooting by indoor unit receive board

ERROR CODE

Reservation LED flickering(1Hz period) Operation LED and reservation LED flickering (1Hz period) Operation LED and filter LED flickering (1Hz period) Reservation LED filter LED alternating flickering (1Hz period) Reservation LED and filter LED flickering (1Hz period) Operation LED and reservation LED alternating flickering (1Hz period) Filter LED flickering (1Hz period)

Indoor temperature sensor abnormal Indoor pipe temperature sensor abnormal

Outdoor temperature sensor abnormal Float switch open abnormal Indoor and outdoor communication abnormal Wired remote controller communication abnormal Outdoor pipe temperature sensor abnormal

ERROR CODE

REFERENCE PART

EC01 EC02 EC03 EC04 EC05 EC06 EC07 EC08

REFERENCE PART

EC01 EC02

EC03 EC04 EC05 EC06 EC07

■ Trouble shooting by outdoor unit error code

ERROR CODE

*1 *5 *6 *9 *A *C *D

✽ The asterisk mark “ * ” + “ERROR” CODE of wired remote controller stands for the set number.

ex) ERROR CODE “39” is the FLOAT SWITCH OPEN ERROR of SET no.3.

Indoor unit room thermistor error Indoor unit pipe thermistor error Outdoor unit thermistor error Float switch open error Communication error between indoor unit and outdoor unit Communication error between wired remote controller and indoor unit Outdoor unit pipe thermistor error Three phase power incorrect connecting error (In case of three phase power models)

ERROR DESCRIPTION

■ Trouble shooting by outdoor unit error code

ERROR CODE

LED flickering

Samsung Electronics

Communication error between indoor unit and centralized controller

ERROR DESCRIPTION

REFERENCE PART

EC01 EC02 EC03 EC04 EC05 EC06 EC07 EC08

REFERENCE PART

EC20

6-1

Page 89

Trouble Shooting

■ EC01 : Trouble on the thermistor related part of indoor unit.

• EC01 : Trouble on the room thermistor related part of indoor unit.

- E1 of outdoor unit PCB 7-segment

- Reservation lamp of wireless receiving board is flickering with 1 Hz.

- Action items when “*1” display s on the wired rem

Check point :

- Defect of indoor unit

- Indoor unit thermistor defect

Indoor unit thermistor installed at CN8?

YES

Is the vlotage across the thermistor 4.9V and

tabove or 0.5V and lower?

YES

Replace the thermistor

Indoor the indoor unit thermistor at CN8

Replace the indoor unit PCB

✽ “*” stands for the indoor unit address.

■ EC02 : Trouble on the pipe thermistor related part of indoor unit.

- E5 of outdoor unit PCB 7-segment.

- Reservation lamp of wireless receiving board is flickering with 1 Hz.

- Action items when “*5” displays on the wired remote controller.

Check point :

- Indoor unit PCB defect

- Indoor unit pipe thermistor defect

Is the indoor unit pipe thermistor installed at CN8?

YES

Is the voltage across thermistor 4.9V and higher

or 0.5V lower?

YES

Replace the thermistor

6-2

Install the indoor unit pipe thermistor at CN8

Replace the indoor unit

PCB

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Page 90

Trouble Shooting

■ EC03 : When the trouble is found on the part related to the outdoor unit thermistor.

- E6 of outdoor unit PCB 7-segment

- Operation lamp and filter lamp of wireless receiving board are flickering with 1Hz.

- Action items when “*6” displays on the wired remote controller.

Check point :

- Defect of indoor unit

- Indoor unit thermistor defect

Is the outdoor unit thermistor installed at CN41?

YES

Is the voltage across the thermistor 4.9V and

higher or 0.5V and lower?

YES

Replace the thermistor

✽ “*” stands for the indoor unit address.

Install the outdoor unit thermistor at CN41.

Replace the outdoor unit PCB

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Trouble Shooting

■ EC04 : When the trouble is found on the drain pump and float switch installed on the

indoor unit.

EC01 : Trouble on the thermistor related part of indoor unit.

- E9 of 7-segment of outdoor unit PCB

- Reservation lamp of wireless receiving board and filter lamp are flickering with 1 Hz.

- Action item when “*9” displays on the wireless remote controller.

Check point :

- Indoor unit defect

- Drain pump, float switch defect

Start

Check the

Is available drain

pump?

YES

SW2 ON?

YES YES YES

Is available float

SW?

SW3 ON?

float SW

Replace

indoor unit

PCB

SW2 ON?

YES

SET SW2 OFF SET SW3 OFF

POWER RESET

Replace PCB

SET SW2 OFF SET SW3 OFF

✽ “*” stands for the indoor unit address.

Install float SW

6-4

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Page 92

Trouble Shooting

■ EC05 : When the trouble is found in the communication related part between indoor unit

and outdoor unit.

- EA of 7-segment of outdoor unit PCB.

- Reservation lamp and filter lamp of wireless receiving board is flickering with 1 Hz.

- Action item when “*A” displays on the wired remote controller.

Check point :

- Indoor unit

- Indoor unit PCB defect

- Outdoor unit PCB defect

↔ outdoor unit mis-connection

Are the terminals N1,L1,C of indoor unit and outdoor unit

are correctly connected? and is the set power on?

YES

Is the LED of PCB flickering with 16Hz for 250ms and

then repeating the on?

Is the LED of PCB flickering with 16Hz?

Replace the PCB

✽ “*” stands for the indoor unit address.

YES

Do connection correctly and check.

Indoor unit communication norma

The Micom of outdoor unit is operating normally,

check and replace the communication circuit of

outdoor unit and indoor unit.

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Trouble Shooting

■ EC06 : When the trouble is found in the communication related part between indoor unit

and wired remote controller. (during single operation, not group control)

- EC of 7-segment of outdoor unit PCB.

- Wireless receiving board lamp and reservation lamp is flickering with 1Hz.

- Action item when “C” displays on the wired remote controller.

Check point :

- Short circuit or mis-connection of the communication line between indoor unit and wireless remote controller

- Indoor unit PCB defect

- Wired remote controller PCB defect

Are the terminals R1, R2, R3 of indoor unit terminal

board connected correctly to R1, R2, R3 of wired remote

controller?

YES

Is 7P(RED) of transformer connected to CN11

of indoor unit?

Is the jump wire inserted into CN20 of indoor unit PCB?

YES

Is the address of PCB digital switch of indoor unit to "0"?

YES

Replace the indoor unit PCB

✽ “0” stands for the indoor unit address.

Connect correctly and check.

Connect correctly and check again

Set address to "0"

Replace the wired remote controller

6-6

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Page 94

Trouble Shooting

■ EC07 : When the trouble is found in the communication related part between outdoor

unit pipe thermistor.

- ED of 7-segment of outdoor unit PCB.

- Reservation lamp and filter lamp of wireless receiving board is flickering with 1Hz.

- Action item when “D” displays on the wired remote controller.

Check point :

- Indoor unit pipe thermistor available or not

- Indoor unit PCB defect

Is indoor pipe thermistor installed at CN41?

YES

Is the voltage across the thermistor 4.9V and higher

or 0.5V and lower?

YES

Replace the thermistor

✽ “*” stands for the indoor unit address.

Connect correctly and check.

Replace the outdoor PCB

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Trouble Shooting

■ EC08 : When the reverse of three phase power is found.

Check point :

- Con check CN76 to connect correctly.

- Check IC51, IC52, IC53 to connect correctly.

Check the Mis-insertion of CN76?

Wire shorted?

Check the pin no 4 of IC51, IC52, IC53,

does this make round type signal?

YES

IC correct

Take two connected lines to change the string of

L1, L2, L3 because of the reverse of power.

YES

Insert correctly

YES

Replace wire

Replace IC that does not

make round type signal

6-8

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Page 96

Trouble Shooting

■ EC09 : When the trouble is found on the part related to the wireless receiving board of

the indoor unit.

Check point :

- Defect of wireless remote controller PCB

- Defect of wireless remote controller receiving board PCB

- Indoor unit PCB defect

Mis-insertion of CN9?

Wire shorted?

LED direct/reverse direction check?

Check no.1 and no.2 pin of CN9:DC +5V?

YES

Check pin no.1 of CN9 while pressing

SW91 : DC 0V?

YES

Insert correctly

YES

Replace the wireless receiving board

Replace after check of indoor unit

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main PCB

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Page 97

Trouble Shooting

■ EC10 : When the trouble is found on the part related to the wired remote controller.

(single operation)

Check point :

- Defect of communication line between indoor unit and wired remote controller.

- Output of indoor unit Micom

- Defect of wired remote controller PCB

- Indoor unit PCB defect

Is the wired remote

controller energized

when the power is reset?

YES

Is the on/off button command

of wired remote controller

reflected on the set?

YES

When the power is applied

again after removing the

power at the operation on,

does the previous status

display on the wired remote

controller display window?

YES

Does the error code display?

NO NO

Is CN20 of indoor

unit main PCB

remote controlled connected to the R1, R2,

YES

inserted?

YES

Is the address

of indoor unit "0"

More than on indoor

unit mounted on the

wired remote

controller?

Are the terminals R1, R2, R3 of wired

R3 of indoor unit terminal boards?

YES

CN20

insertion

Set to "0"

One unit is

installed

Is the wire of CN15 to

indoor unit terminal

board shorted?

YES

Check the indoor

unit PCB

YES

Replace the

wiring

Check the main PCB of

indoor unit and replace it.

6-10

Connect correctly the R1, R2, R3

Error correction and recheck

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Page 98

Trouble Shooting

■ EC11 : When the trouble is found on the part related to the fan motor of indoor unit.

Check point :

- Defect of PCB relay of indoor unit.

- Output of indoor unit Micom

- Indoor fan motor defect

- Defect of PCB IC06 of indoor unit

Is the power source normal? AC220 ~ 240 50Hz

Is the wire harness for motor connection good?

Is the terminal contact of fan motor condenser good?

YES

During the wind control, does it change to breeze, weak, strong and auto wind?

YES

When changing the wind to

breeze, weak, strong and auto,

do RY73, RY74, RY75 operate?

Is he output pin of micom high when

selecting each wind control mode?

YES

When selecting the each wind control

mode, is the voltage across the replay of

indoor unit PCB 12V?

Normal

Check micom and

replace

Check micom and

replace

Check micom and

replace

Check the replay part

and replace

micom, are the pin 14 and 15 of indoor

Is the voltage across the indoor unit fan

Samsung Electronics

YES

When selecting each wind control of

unit PCB IC06 low?

YES

AC220 ~ 240V?

YES

Check the indoor unit fan motor

and replace

Check IC06 and

replace

Replace PCB

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Page 99

Trouble Shooting

■ EC12 : When the trouble is found on the part related to the fan motor of outdoor unit.

Check point :

- Outdoor unit PCB relay defect

- Output of outdoor unit micom

- Outdoor unit fan motor defect

- Defect of IC07 of outdoor unit PCB

Is the power source normal? AC220~240 50Hz Is the wire harness for motor connection good?

Is the terminal contact of fan motor condenser good?

YES

Does the outdoor fan motor changes to mild

and strong wind during the cooling

operation?

Do the RY73, RY74 operate?

Is the wind volume output pin of micom high

when each wind control is operation?

YES

Is the voltage across the PCB relay 12V

when the each wind control of micom

is opeating?

YES

Check and replace

the related part

Normal

Check and replace

the micom

Check and replace

the relay

6-12

Are the pins 11 and 12 of IC07 of outdoor

unit PCB low when each wind control mode

micom is operation?

YES

Is the voltage across the outdoor unit

fan motor AC220~240V?

YES

Check outdoor unit fan motor and replace

Check and replace

IC07

Replace PCB

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Page 100

■ EC13 : When the trouble is found on the part related to comp of outdoor unit.

Check point :

- Indoor unit PCB relay defect

- Output of indoor unit micom

- Comp defect

- Magnet switch defect

Trouble Shooting

Is the power source normal? AC220~240 50Hz Is there no wrong connection and contact of indoor and outdoor connection wire? Is the compressor being delayed for 3 minutes? Is the desired temperature set higher than the current one during the cooling operation? Is the desired temperature set lower than the current one during the cooling operation?

YES

Is the RY71 on and compressor operating

when cooling mode operates and indoor unit

PCB is shorted?

YES

Is the output of outdoor unit micom pin 57

high when the compressor is on?

Is the voltage across RY7 coil of

outdoor PCB 12V?

Check and replace

the related part

Normal

Check and replace

micom (IC04)

Samsung Electronics

Is the output of NO. 10 of IC05 of outdoor

unit low then the compressor is on?

Is the voltage AC220V across the terminal

of outdoor unit when the compressor is on?

Replace the compressor

Check and replace

IC05

Replace the magnet

replay

6-13

Samsung CH18, CH24, CH36, CH44 CA Service Manual

Specifications and Main Features

Frequently Asked Questions

User Manual