Samsung CH44CA, CH44CAX, CH140EAMC, UH140GAMC, CH105EAMC Service Manual

SYSTEM AIR CONDITIONER

INDOOR UNIT	OUTDOOR UNIT
Basic : CH44CA	CH44CAX
Model : CH140EAMC	UH140GAMC
CH105EAMC	UH105GAMC
CH070EAMC	UH070EAMC
CH052EAMC	UH052EAMC
CH094EAMC	UH094EAM1C
Model Code : CH140EAMC	UH140GAMC
CH105EAMC	UH105GAMC
CH070EAMC	UH070EAMC
CH052EAMC	UH052EAMC
CH094EAMC	UH094EAM1C

SERVICE Manual

AIR CONDITIONER	THE FEATURE OF PRODUCT
	 Energy Saving Function
	 Long Lasting Outdoor Unit
	 High Ceiling Operation
	: Up to 3.6m height
	 Built-in Drain Pump
	: Max. 750mm
	 Long Piping

Refer to the service manual in the GSPN(see the rear cover) for the more information.

Contents

11. Precautions ...........................................................................................................		1-1
1-1 Installing the air conditioner .................................................................................		1-1
1-2	Power supply and circuit breaker .........................................................................	1-1
1-3	During operation ..................................................................................................	1-2
1-4	Disposing of the unit ............................................................................................	1-2
1-5	Others .................................................................................................................	1-2

12. Product Specifications .......................................................................................		2-1
2-1 The Feature of Product .......................................................................................		2-1
2-2	The abbreviated technology words & the definition of technology terms ..........	2-1
2-3	Product Specifications ........................................................................................	2-2
2-4	The Comparative Specifications of Product .........................................................	2-3
2-5 Accessory and Option Specifications ....................................................................		2-4

3.	Alignment and Adjustments .............................................................................		3-1
	3-1 Indoor Display Error and Check Method ..............................................................		3-1
	3-2 Setting Option Setup Method ...............................................................................		3-4
14. Disassembly and Reassembly ........................................................................			4-1
	4-1 Indoor Unit ..........................................................................................................		4-1
	4-2 Outdoor Unit .......................................................................................................		4-10
15. Exploded Views and Parts List ........................................................................			5-1
	5-1 Indoor Unit ..........................................................................................................		5-1
	5-2 Panel ..................................................................................................................		5-4
	5-3 Outdoor Unit ........................................................................................................		5-6
	5-4 Ass’y Control In ...................................................................................................		5-14
	5-5 Ass’y Control Out .................................................................................................		5-20
6.	Electrical Parts List .............................................................................................		6-1
7.	Wiring Diagram ....................................................................................................		7-1
	7-1	Indoor Unit ..........................................................................................................	7-1
	7-2	Outdoor Unit .......................................................................................................	7-4
8.	Schematic Diagram ............................................................................................		8-1
	8-1	Indoor Unit ..........................................................................................................	8-1
	8-2	Outdoor Unit .......................................................................................................	8-2

Contents

9. Circuit Descriptions ...............................................................................................	9-1
9-1 PCB Circuit Descriptions .....................................................................................	9-1
9-2 Refrigerating Cycle Diagram ................................................................................	9-3
10. PCB Diagram .......................................................................................................	10-1
10-1 Indoor PCB .......................................................................................................	10-1
10-2 Outdoor PCB .....................................................................................................	10-3
11. Operating Instructions .........................................................................................	11-1
11-1 Name of Each Part ............................................................................................	11-1
11-2 Main Function ....................................................................................................	11-3
11-3 Wireless Remote Control-Buttons and Display ...................................................	11-9
11-4 Wired Remote Controller-Buttons and Display ...................................................	11-10
12. Troubleshooting ...................................................................................................	12-1
12-1 Operation Specification ......................................................................................	12-1
12-2 Troubleshooting .................................................................................................	12-3
12-3 Sequence for trouble diagnosis ........................................................................	12-6
13. Block Diagram ......................................................................................................	13
13-1 Indoor Unit ........................................................................................................	13
13-2 Outdoor Unit ......................................................................................................	13
14. Reference Sheet .................................................................................................	14-1
14-1 Index for Model Name .......................................................................................	14-1
14-2 Pressure Graph .................................................................................................	14-2
14-3 Pressure & Capacity mark .................................................................................	14-2
14-4 Q & A for Non-trouble ........................................................................................	14-3
14-5 Cleaning/Filter Change ......................................................................................	14-6
14-6 Installation .........................................................................................................	14-7
14-7 Installation Diagram of Indoor Unit and Outdoor Unit .........................................	14-8

1. Precautions

1-1 Installing the air conditioner

Users should not install the air conditioner by themselves.

Ask the dealer or authorized company to install the air conditioner except the window-type air conditioner in U.S.A and Canada.

If you don’t install the air conditioner properly, it may cause a fire, a water leakage or an electric shock.

You must install the air conditioner according to the national wiring regulations and safety regulations.

Install the indoor unit higher than 2.5m from the floor to avoid the injury caused by the operation of the fan. (except the window-type air conditioner)

The manufacturer is not responsible for any accidents or injury caused by an incorrect installation.

When installing the built-in type air conditioner, keep all electric cables such as the power cable and the connection cord in pipes, ducts, or cable channels to protect them from the danger of impact or any other incidents.

d a n g e r o u s

Avoid Dangerous Contact

1-2 Power supply and circuit breaker

If the power cord of the air conditioner is damaged, it must be replaced by the manufacturer or a qualified person in order to avoid a hazard.

 The air conditioner must be plugged into an independent circuit if applicable or connect the power cable to the auxiliary circuit breaker.

An all pole disconnection from the power supply must be incorporated in the fixed wiring with a contact opening of >3mm.

Do not extend an electric cord to the air conditioner.

The air conditioner must be plugged in after you complete the installation.

No Tapping and No Extension Cords

1-1	Samsung Electronics

1-3 During operation

Do not repair the air conditioner at your discretion.
It is recommended to contact a service center directly.
 Never spill any kind of liquid on the air conditioner.
If this happens, turn off the air conditioner and contact an authorized service
center.
 Do not insert anything between the airflow blades to prevent damage of the
inner fan and consequent injury. Keep children away from the air conditioner.
 Do not place any obstacles in front of the air conditioner.
 Do not spray any kind of liquid into the indoor unit. If this happens, turn off the
air conditioner and contact a service center.
 Make sure that the air conditioner is well ventilated at all times:
Do not place a cloth or other materials over it.	No children Nearby

Remove the batteries if you don’t use the remote control for a long time. (If applicable)

Use the remote control within 7 meters from the indoor unit. (If applicable)

1-4 Disposing of the unit

 Before throwing out the air conditioner, remove the batteries from the remote control.

When you dispose of the air conditioner, consult your dealer. If pipes are removed incorrectly, refrigerant may blow out and cause air pollution. When it contacts with your skin, it can cause skin injury.

The package of the air conditioner should be recycled or disposed of properly for environmental reasons.

1-5 Others

Never store or load the air conditioner upside down or sideways to prevent the damage to the compressor.

Young children or infirm persons should be always supervised when they use the air conditioner.

Max current is measured according to IEC standard for safety.

Current is measured according to ISO standard for energy efficiency.

Samsung Electronics

1-2

2. Product Specifications

2-1 The Feature of Product

 Energy saving function

Make a profit room temperature with energy saving function(high efficiency air conditioner).

 Long Lasting Indoor & Outdoor Units

Anti-Corrosion Outdoor Cabinet & anti-Bacteria Indoor Heat Exchanger.

 High Ceiling Operation

Broader and wider blow supports up to 3.6 meters high.

 Built-in Drain Pump

Drain Pump for 750mm height difference.

 Auto Changeover

Cooling or Heating automatic operation due to room temperature.

 Long Piping

Max. 50m length & 30m height.

2-2 The abbreviated technology words & the definition of technology terms

Abbreviated technology words	Definition of technology terms
COMP	One that compresses, especially a machine used to compress gases.
( Full name:compressor )
BLOWER	One that blows, especially a mechanical device, such as a fan, that pro-
	duces a current of air.
FAN	A device for creating a current of air or a breeze.
ASSY CONTROL BOX	A restraining device of air-condition, measure, or limit.
(Full name : assemble control box)
MOTOR	Something, such as a machine or an engine, that produces or imparts-
	motion.
ASSY EVAP / ASSY COND( Full name :	Heat exchanger; A device, used to transfer heat from a fluid on oneside of
assemble evaporator / assemble con-	a barrier to a fluid on the other side without bringing the fluidsinto direct
denser )	contact.

2-1	Samsung Electronics

2-3 Product Specifications

MODEL	INDOOR UNIT					CH140EAMC	CH105EAMC	CH070EAMC	CH052EAMC	CH094EAMC
	OUTDOOR UNIT					UH140GAMC	UH105GAMC	UH070EAMC	UH052EAMC	UH094EAM1C
	Cooling				BTU/h	48,000	34,120	23,885	18,426	30,708
Capacity					W	14,000	10,000	7,000	5,400	9,000
	Heating				BTU/h	52,800	36,510	24,567	20,473	32,414
					W	15,400	10,700	7,200	6,000	9,500
	Power Supply				Φ/V/Hz	3Φ/380~415 V/50Hz	3Φ/380~415 V/50Hz	220-240V~,50Hz	220-240V~,50Hz	220-240V~,50Hz
Power	Cooling				W	5,300	3,560	2,400	1,950	3,400
Input	Heating				W	5,900	3,600	2,350	1,900	3,500
Running	Cooling				A	9.20	6.20	11.0	8.5	15.5
Current	Heating				A	10.00	6.30	11.0	8.6	16.0
	Max current / power					11.5A/6.5kW	8.10A/4.39 kW	13.5A/3.05kW	11.8A/2.53 kW	11.8A/2.53 kW
		Hi			r.p.m	600±20	540/520 ±20	460/440±20	400/380±20	460/440 ±20
	Fan Speed	Mid			r.p.m	560±20	500/480 ±20	440/420±20	380/360±20	440/420 ±20
		Low			r.p.m	520±20	460/440 ±20	420/400±20	360/340±20	420/400 ±20
		Hi			m3/min	29	24.5	18.5	14.0	18.5
	Air Flow Rate	Mid			m3/min	27	22.5	17.0	13.0	17.0
		Low			m3/min	25	20.5	16.0	12.0	16.0
Indoor	Noise Level( Cooling/ Heating)				dB(A)	49/50	47/48	43/44	43/44	43/44
Unit	Heat Exchanger		Type			Slit, Φ7, 2RX13S, FP1.4	Slit, Φ7, 2RX12S, FP1.5	Slit, Φ7, 2RX8S, FP1.6	Slit, Φ7, 2RX8S, FP1.6	Slit,Φ7,2RX8S,FP1.6
		RowsxStagesxFin pitch				2*13*1.4	2*12*1.5	2*8*1.6	2*8*1.6	2*8*1.6
	Fan		Type			Turbo	Turbo	Turbo	Turbo	Turbo
		H			mm	298	298	218	218	218
	Dimensions	W			mm	840	840	840	840	840
		D			mm	840	840	840	840	840
	Weight	Net/Gross			kg	29/35	28/34	25/31	25/31	25/31
	Fan Speed	Hi			r.p.m	1020±50	1080±50	900±50	940±50	980±50
		Low			r.p.m	600±50	750±50	870±50	900±50	500±50
	Noise Level( Cooling/ Heating)				dB(A)	67/68	65/66	60/61	59/60	63/64
	Fan		Type			Propeller	Propeller	Propeller	Propeller	Propeller
			Type			Scroll , 3phase	Scroll , 3phase	Rotary 1	Rotary 1	Rotary 1
	Compressor	Model				BN62YFAMT	AN42YBFMT	G5A240JUAEM	G8D190JUAEH	NN40VAAMT
		Output			Btu/h	56,640	37,200	24,100	19,995	10,200
		Protection				External	External	Internal	Internal	Internal
Outdoor			Type			R410A	R410A	R410A	R410A	R410A
Unit		Charge			g	3,300(116.4oz)	2,750(97.0oz)	1,700(60oz)	1,500(53oz)	1,800(63.5oz)
	Refrigerant	Adding			g/m	70	70	40	25	40
		Charge
		Control				Expansion Valve	Expansion Valve	Expansion Valve	Expansion Valve	Expansion Valve
	Heat Exchanger		Type			Slit, Φ7 Wide fin	Slit, Φ7 norm al fin	Slit ,Φ7 norm al fin	Slit ,Φ7 norm al fin	Louver,Φ7normalfin
		RowsxStagesxFin pitch				2*52*1.4	2*42*1.3	2*28*1.4	2*28*1.4	2*36*1.5
		H			mm	1128	931	648	648	798
	Dimensions	W			mm	932	880	880	880	880
		D			mm	375	320	310	310	310
	Weight	Net/Gross			kg	121/136	87/92	60/67	59/66	74/82
	Pipe O.D Size	Liquid		mm(inch)		19.05(3/4”)	19.05(3/4”)	9.52(3/8”)	6.35(1/4”)	9.52(3/8”)
		Gas		mm(inch)		9.52(3/8”)	9.52(3/8”)	15.88(5/8”)	12.70(1/2”)	15.88(5/8”)
Piping
	Connection Method					Flare	Flare	Flare	Flare	Flare
	Between	Height			m	Max.30	Max.30	Max.15	Max.15	Max.15
		Pipe Length			m	Max.50	Max.50	Max.30	Max.30	Max.30

Samsung Electronics

2-2

2-4 The Comparative Specifications of Product

	Item		CH140EAMC	CH44CA(Basic)
		Indoor Unit
	Design
		Outdoor Unit
	Net Weight	Indoor Unit	29Kg	34Kg
		Outdoor Unit	121Kg	123Kg
	Outer Dimension	Indoor Unit	298*840*840mm	288*840*840mm
	(WxHxD)	Outdoor Unit	1128*932*375mm	1240*930*385mm
	Noise	Indoor Unit	49dB	52dB
		Outdoor Unit	67dB	62dB
	Air Purifying System	Filter	Anti-bacterial Filter	Anti-bacterial Filter

2-3	Samsung Electronics

2-5 Accessory and Option Specifications

2-5-1 Accessories

Item	Descriptions	Code-No.	Q'TY	Remark
	Pattern sheet	DB69-01490A	1
	Insulation drain in/out	DB62-03440H/	1
		DB62-03439H
	Insu Pipe Joint In 1/4 and 1/2	DB72-00143E/	1
		DB72-00143G
	Insu Pipe Joint Out 1/4	DB62-03439J	2
	Cable-tie	DB65-10088C	8
	Drain hose	DB94-01065A	1	Indoor
				Unit
	Pad Stopper	DB69-00165A	1
	Instruction manual	DB98-26331A	1
	Installation manual	DB98-26330A	1
	Safety net	DB63-01480A	1
	M4x12 tapped Screw	6002-2000213	4

Samsung Electronics

2-4

Product Specifications

Accessories(cont.)

Item	Descriptions	Code-No.	Q'TY	Remark
	Nut-Flare	DB60-30010B	1
	Drain Plug	DB67-00477A	1
	Cap Drain	DB63-10355C	1	Outdoor
				Unit
	Rubber Bracket Wire	DB73-00218A	2
	Installation manual	DB98-26328A	1

2-5-2 Accessories

Wireless Remote Controller Accessories

Item	Descriptions	Code-No.	Q'TY	Remark
	Wireless remote controller	DB93-00251G	1
	Battery	DB47-90024A	2
	Remote control holder	DB61-00204A	1
	STS 2S-2x10 tapped screw	6002-000581	2
	Owner’s instructions	DB98-05156A	1
	Installation manual	DB98-05184A	1

2-5	Samsung Electronics

				Product Specifications
 Receiver & display unit & Wire kit
Item	Descriptions	Code-No.	Q'TY	Remark
	Receiver & display unit	DB93-01066A	1
	STS 2S-2x10 tapped screw	-	4
	2S-4x12 tapped screw	-	2
				Indoor
				Unit
	Owner’s instructions	DB98-05160A	1
	Installation manual	DB98-05186A	1
	Wire kit	DB39-00223A	1
	Receiver & display unit	DB93-01066A	5
	M4x16 tapped screw	-	7
	Cable-tie	-	2
				Standard
				type
	Owner’s instructions	DB98-05160A	1
	Installation manual	DB98-05186A	1
	Wire kit	DB39-00223A	1

Samsung Electronics

2-6

Product Specifications

Wired Remote Controller Accessories

Item	Descriptions	Code-No.	Q'TY	Remark
	Wired remote controller	DB93-01766C	1
	Cable-tie	DB65-10088B	2
	Cable clamp	DB65-10074E	5
	M4x16 tapped screw	6002-000474	7
	Indoor unit power drawing cable	DB39-00221A	1
	Communication cable of the	DB39-00933A	1
	wired remote controller
	Wire joint	DB39-90020A	1
	Owner’s instructions	DB98-15731A	1
	Installation manual	DB98-15770A	1

2-7	Samsung Electronics

				Product Specifications
Centralized Controller Accessories
Item	Descriptions	Code-No.	Q'TY	Remark
	Centralized controller	DB97-00874B	1
	Cable-tie	DB65-10088B	2
	Cable clamp	DB65-10074E	5
	M4x16 tapped screw	6002-000474	7
	Owner’s instructions	DB98-12721A	1
	Owner’s instructions	DB98-12722A	1

 Function Controller Accessories

Item	Descriptions	Code-No.	Q'TY	Remark
	Function controller	DB93-00757G	1
	Cable-tie	DB65-10088B	2
	Cable clamp	DB65-10074E	6
	M4x16 tapped screw	6002-000474	7
	Owner’s instructions	DB98-05164A	1
	Owner’s instructions	DB98-05190A	1

Samsung Electronics

2-8

Product Specifications

Transmitter Accessories

Item	Descriptions	Code-No.	Q'TY	Remark
	Transmitter	-	1
	Transmitter power cable	-	1
	Transmitter communication cable	-	1
	Installation manual	-	1

7-day Scheduler Accessories

Item	Descriptions	Code-No.	Q'TY	Remark
	7-day Scheduler	-	1
	Cable-tie	-	2
	Cable clamp	-	2
	M4x16 tapped screw	-	4
	Owner’s instructions	-	1
	Installation manual	-	1

2-9	Samsung Electronics

3. Alignment and Adjustments

3-1 Indoor Display Error and Check Method

Error detection and reoperation

If error occurs during the operation, badness is indicated by LED flickering and all operation is stopped except LED. When reoperating by remote control and switch determine the error mode after normal operation.

Indoor unit LED lamp display at error detecting

			LED lamp display
Abnormal conditions							Remarks
	Green		Red	Yellow	Green	Orange
Power reset			X	X	X	X
Error of temperature sensor	X		X		X	X
in the indoor unit (Open/Short)
Error of heat exchanger sensor			X			X
in the indoor unit
Error of the outdoor temperature sensor			X	X		X
Error of the condensor temperature sensor
Error of the discharge temperature sensor
1. Error of electronic expansion valve close
2. Error of electronic expansion valve open
3. 2'nd detection of high temperature cond	X		X
4. 2'nd detection of high temperature discharge
5.Error of reverse phase
6.Compressor down due to 6'th detection of freezing
Detection of the float switch	X		X	X
Error of setting option switches for optional	X		X		X
accessories

●: On : Flickering X: OFF

If you turn off the air conditioner when the LED is flickering, the LED is also turned off.

Samsung Electronics

3-1

Alignment and Adjustments

 LED Display

LED lamp display

Abnormal conditions	Green		Red	Yellow	Green	Orange	Remarks
1. No communication for 2 minutes between indoor
units (Communication error for more than 2 minutes)
2. Indoor unit receiving the communication error from
outdoor unit
3. Outdoor unit tracking 3 minutes error	X		X			X
4.When sending the communciation error from the
outdoor unit , the mismatching of the communication
numbers and installed numbers after completion of
tracking(Communication error for more than 2 minutes)
EEPROM option error

●: On : Flickering X: OFF

If you turn off the air conditioner when the LED is flickering, the LED is also turned off.

OPTION ITEMS

REMOCON	SEG1	SEG2	SEG3	SEG4	SEG5	SEG6	SEG7	SEG8	SEG9	SEG10	SEG11	SEG12
MODEL
CH140EAMC	0	4	5	8	0	7	1	3	5	3	4	0
CH105EAMC	0	4	4	0	0	7	1	F	1	2	1	D
CH070EAMC	0	4	4	0	0	7	1	C	5	0	D	B
CH052EAMC	0	4	4	0	0	7	1	B	1	0	A	8
CH094EAMC	0	4	6	8	0	7	1	0	5	2	1	D

3-2	Samsung Electronics

Alignment and Adjustments

Wired Remocon Error Display

Display	Description	Remarks
	Compressor down due to protection control of the discharge	Error about protection
	temperature sensor	control of the outdoor unit
	Control due to the condenser temperature sensor when cooling mode
	Error of the low pressure switch (Protection control)
	Reverse phase error (Protection control)
	In removing frost
	Error of the outdoor temperature sensor (Open/Short)	Error about the outdoor unit
		sensor (Open/Short)
		Detection during the
	Error of condenser temperature sensor (Open/Short)	operation of the indoor unit
		(sensing and sending errors
		into the communication data)
	Error of discharge temperature sensor (Open/Short)
	- System down caused by communication error after completion	Communication and the
	of tracking	indoor unit errors
	- Mismatching of the indoor unit numbers set with those communication
	after completion of 5 times tracking
	Error of temperature sensor in the indoor unit (Open/Short)	Self-diagnosis of the indoor
		and outdoor unit
	Error of the heat exchanger sensor in the indoor unit (Open/Short)
	Error of electronic expansion valve open in the outdoor unit
	(when it is detected more than once)
	Error of electronic expansion valve close in the outdoor unit
	(when it is detected more than once)
	Error of communication between the indoor unit and the wired	Wired remote controller
		errors
	remote controller
	Master wired remote controllerSlave wired remote controller
	COM1/COM2 Cross-installed error
	Error of setting option for wired remote controller COM2

Samsung Electronics

3-3

3-2 Setting Option Setup Method

ex) Option No. :

Step 1 : Enter the Option Setup mode.

1st	Take out the batteries of remote control.
2nd	Press the temperature		button simultaneously and
	insert the battery again.
3rd	Make sure the remocon display shown as			.

Step 2 : Enter the Option Setup mode and select your option according to the following procedure.

1

	The default value is		.
	Otherwise, push the		button to .
	Every time you push the button, the display panel reads			or
	repeatedly.
1	2
2
	Push the	button to set the display panel to .
3	Every time you push the button, the display panel reads			 
	 . . . 		     repeatedly.
4	3
	Push the	button to set the display panel to .
5	Every time you push the button, the display panel reads				
6	 . . . 		     repeatedly.
	4
	Push the	button to set the display panel to .
	Every time you push the button, the display panel reads				
	 . . . 		     repeatedly.
	5
	Push the	button to set the display panel to .
	Every time you push the button, the display panel reads				
	 . . . 		     repeatedly.
Setting is not required if you must	6
a value which has a default.	Push the	button to set the display panel to .
	Every time you push the button, the display panel reads				
	 . . . 		     repeatedly.

3-4	Samsung Electronics

7

8

9

10

11 12

7

Press button, then the default value is .

8

Push the			button to set the display panel to .
Every time you push the button, the display panel reads					
 . . . 			      repeatedly.

9

Push the	button to set the display panel to .
Every time you push the button, the display panel reads			
 . . . 	      repeatedly.

10

Push the			button to set the display panel to .
Every time you push the button, the display panel reads					
 . . . 			      repeatedly.

11

Push the			button to set the display panel to .
Every time you push the button, the display panel reads					
 . . . 			      repeatedly.

Setting is not required if you must a value which has a default.

12

Push the			button to set the display panel to .
Every time you push the button, the display panel reads					
 . . . 			      repeatedly.

Step 3 : Upon completion of the selection, check you made right selections.

Press the Mode Selection key, to set the display part to and check the display part.

The display part shows .

Press the Mode Selection key, set the display part to and check the display part. The display part shows .

Step 4 : Pressing the ON/OFF button ( )

When pressing the operation ON/OFF key with the direction of remote control for unit, the sound ’’Ding’’ or ’’Diriring’’

is heard and the OPERATION ICON( ) lamp of the display is flickering at the same time, then the input of option is completed. (If the diriring sound isn’t heard, try again pressing the ON/OFF button.)

Step 5 : Unit operation test-run

First, Remove the battery from the remote control.

Second, Re-insert the battery into the remote control.

Third, Press ON/OFF button( ) with the direction of remote control for set.

• Error Mode

1st	If all lamps of indoor unit are flickering, Plug out, plug in power plug again and press ON/OFF key to retry.
2nd	If the unit is not working properly or all lamps are continuously flickering after setting the option code, see if the
	correct option code is set up for its model.

Samsung Electronics

3-5

4. Disassembly and Reassembly

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

4-1 Indoor Unit

CH140/105/070/052/094EAMC

No	Parts	Procedure			Remark
1	Front Grille	1) Push the tap on the Front Grille to open
	- Dust-Collecting Filter	it.

2)Disassembly of Front Grille.

(1)Open the Front Grille at about 45˚ degrees and draw it forward.

(2)Disassemble the Safety Clip.

3) Filter Disassembly

(1) Draw the Dust-Collecting Filter

forward.

(2) Disassemble the Filter.

4-1	Samsung Electronics

Disassembly and Reassembly

No

Parts

Procedure

Remark

4) Open the corner cover slowly to disassemble it. (There are three hooks.)

5) Pull the corner cover forward carefully by using two hands.

6)Loosen four bolts of the front panel slowly.

7) Loosen four screws of the safety net to disassemble it.

Samsung Electronics

4-2

Disassembly and Reassembly

No	Parts	Procedure		Remark
		8) To uncover the Componet Electronic
		Box cover.
		(1) Loosen two screws in the mark	.

(2) Draw the both side hooks toward the arrow direction.

9)Disassemble two cables between the indoor unit and panel.

-Stepping motor connector.

-Receiving & display unit connector wire.

10)Hold on two hooks on both sides of

the indoor unit and disassemble the Front Panel.

11) Take away the disassembled Panel out of the main body.

4-3	Samsung Electronics

			Disassembly and Reassembly
No	Parts	Procedure	Remark
2	Electronic Part Indoor	1) Disconnect all Indoor and Outdoor
	&Outdoor Connecting	Cables connected to the Terminal Board.
	Cable

3	Fan& Motor	1) Disassemble the Fan Motor Wire
		Connector, Thermistor Wire Connector,
		Drain Pump Wire Connector and Float
		Switch Wire Connector.

2) Loosen four screws in the mark .

3) Disassemble the Base Control from the main body.

Samsung Electronics

4-4

Disassembly and Reassembly

No

Parts

Procedure

Remark

4) Disassemble the Rubber Cap Drain Socket to remove the water on the Cushion Drain.

(Prepare something like a gutter to put the water in.)

* In this point, you can check the Drain Pump Impeller operates well or not.

5)Loosen eight bolts in the mark.

* At first, there are 2 bolts per one corner and when reassembly, there should be at least 1 bolt per one corner fastened.

* 2 Bolts per one corner recommended..

6)Disassemble the Drain Cushion from the main body.

7) Loosen the nut

4-5	Samsung Electronics

Disassembly and Reassembly

No

Parts

Procedure

Remark

8) Take out the Washer.

9) Lift the Fan to disassemble from the Motor.

10) Loosen the screw and disassemble the Motor Connector to disassemble Motor.

11)Loosen four screws in the mark .

Samsung Electronics

4-6

Disassembly and Reassembly

No	Parts	Procedure		Remark
4	Drain Pump	1) Disassemble the Hose from the Drain
		Pump.

2) Loosen the 3 bolts to disassemble the Drain Pump from the main body.

5	Heat Exchanger	1) Loosen 2 screws to disassemble the
		Cover Pipe beside the main body.

2) Loosen two screws fixing the Holder Evap to disassemble the Heat Exchanger.

4-7	Samsung Electronics4-6

			Disassembly and Reassembly
No	Parts	Procedure	Remark
6	Front Panel	1) Loosen two screws to disassemble the
	(PCB Part)	Cover PCB.

2)Loosen the screw fixing the PCB to disassemble it.

3)Disassemble the PCB Wire from the PCB.

4)Disassemble the Button PCB from the PCB.

Samsung Electronics

4-8

Disassembly and Reassembly

No	Parts	Procedure	Remark
7	Panel Front	1) Loosen the two screws fixing the Cover
	(Stepping Motor)	Side. (There are 4 Cover Side.)

2) Draw two hooks then lift up the Cover Side.

3)Disassemble the Stepping Motor Wire Connected.

4) Disassemble the Stepping Motor from the Panel Front.

5)Disassemble the link and bracket from the Stepping Motor.

4-9	Samsung Electronics

Disassembly and Reassembly

4-2 Outdoor Unit

UH140GAMC
No	Parts		Procedure	Remark
1	Cabinet	1) Turn off the equipment and disassemble
		the power cable.
		2)	Uncover the Cabinet Top.
		3)	Uncover the Control Box Cover
		4)	Pull out the assemble Cable.
		5)	Disassemble the Cabinet Side
		6)	Disassemble the Cabinet	Front.

Check whether each part is fixed to the electronic connector firmly at the time of part assembly.

2Fan Motor & 1) Loosen the blot fixing the Propeller Fan.

Propeller Fan

2) Disassemble the Fan.

Samsung Electronics

4-10

Disassembly and Reassembly

UH105GAMC/UH070/052EAMC,UH094EAM1C

No	Parts		Procedure	Remark
1	Cabinet	1) Turn off the equipment and disassemble
		the power cable.
		2)	Uncover the Cabinet Top.
		3)	Uncover the Control Box Cover
		4)	Pull out the assemble Cable.
		5)	Disassemble the Cabinet Side
		6)	Disassemble the Cabinet	Front.

Check whether each part is fixed to the electronic connector firmly at the time of part assembly.

2Fan Motor & 1) Loosen the blot fixing the Propeller Fan.

Propeller Fan

2) Disassemble the Fan.

Note :

The above pictures are only references

4-11	Samsung Electronics