Samsung CH18, CH24, CH36, CH44 CA Service Manual

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

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

MEMO

1-2 Samsung Electronics

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

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

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

• 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

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

;

Product Specifications

• Outdoor Unit Dimensions

;;;;;

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

930

1420

385

Input bolt fixing dimension

840mm

2-6

415mm

Samsung Electronics

2-2-3 Remote control

• Wired Remote Controller-Buttons and Display

• Wireless Remote Controller-Buttons and Display

Samsung Electronics

2-7

Product Specifications

• Centralized Controller

2-8

Samsung Electronics

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

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

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

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

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

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

3-6

Samsung Electronics

3-5 Micro Computer Block Diagram - Outdoor

Samsung Electronics

3-7

MEMO

3-8 Samsung Electronics

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

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

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

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

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

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.

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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”.

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• 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.

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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.

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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”.

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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.

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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"

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• To put on all 16 chambers' set.

• To put off all 16 chambers' set.

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

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