SAMSUNG AS18A2QB_COR.31002.1.16 Service Manual

ROOM AIR CONDITIONER

INDOOR INDOOR

AQT24A1QE/B AQT24A2QE/B

AQT24B1QE/B AQT24B2QE/B

AQ18A1QE/B AQ18A2QE/B

AQ18B1QE/B AQ18B2QE/B

SH24ZV

SH18ZV

SERVICE Manual

AIR CONDITIONER

CONTENTS

1. Precautions

2. Product Specifications

3. Operating Instructions and

Installation

4. Disassembly and Reassembly

5. Troubleshooting

5. Exploded Views and Parts List

6. Block Diagrams

7. PCB Diagrams

8. Wiring Diagrams

9. Schematic Diagrams

©Samsung Electronics Co., Ltd. JAN.1999. Printed in Korea.

Code No. DB81-00030A(1)

1. Precautions

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.

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.

Fig. 1-1 Avoid Dangerous Contact

Fig. 1-2 No Tapping and No Extension Cords

Fig. 1-3 No Kids Nearby!

Fig. 1-4 Clean the Unit

Samsung Electronics

1-1

M E M O

1-2	Samsung Electronics

2. Product Specifications

2-1 Table

				Model	AQT24A1(B1)QE / AQT24A2(B2)QE / SH24ZV							AQT24A1(B1)QB / AQT24A2(B2)QB							AQ18A1(B1)QE / AQ18A2(B2)QE / SH18ZV							AQ18A1(B1)QB / AQ18A2(B2)QB
Item					Cool				Heat			Cool				Heat			Cool				Heat			Cool				Heat
Power Sourse							220-240V~, 50Hz							220V~, 60Hz							220-240V~, 50Hz							220V~, 60Hz
	UNIT				BTU		KW		BTU		KW	BTU		KW		BTU		KW	BTU		KW		BTU		KW	BTU		KW		BTU		KW
Perfor-	Capacity				24,000BTU/h		6.80KW		24,000BTU/h		6.90KW	24,000BTU/h		-		24,000BTU/h		-	18,000BTU/h		5.10KW		20,000BTU/h		5.60KW	18,000BTU/h		-		20,000BTU/h		-
	Air circulation (High)			m3/min	14.0		14.0		14.5		14.5	14.0		-		14.5		-	13.5		13.5		14.0		14.0	13.5		-		14.0		-
mance
	Moisture removal (High)			Liters/h				3.0							3.0							2.5							2.5
	Available voltage range			V			198 ~ 264							187 ~ 253							198 ~ 264								187 ~ 253
	Running amperes			A	12.5		12.5		13.0		13.0	13.0		-		13.5		-	8.3		8.3		8.5		8.5	8.5		-		9.0		-
Electrical	Power input			kw	2.6		2.6		2.7		2.65	2.6		-		2.7		-	1.85		1.80		1.95		1.85	1.85		-		1.95		-
Rating
	Power factor			%	86.7		86.7		86.5		84.9	90.9		-		90.9		-	92.9		90.4		95.6		90.7	98.9		-		98.5		-
	Energy efficiency ratio			BTU/wh	9.2		-		8.9		-	9.2		-		8.9		-	9.7		-		10.3		-	9.7		-		10.3		-
	Compressor locked rotor amperes			A				82							73							35							35
	Controls/Temperature control				Microprocessor / I.C Thermostat							Microprocessor / I.C Thermostat							Microprocessor / I.C Thermostat							Microprocessor / I.C Thermostat
	Control unit					Wireless remote control							Wireless remote control								Wireless remote control						Wireless remote control
	Timer				Q-Timer / 24-Hour ON or OFF							Q-Timer / 24-Hour ON or OFF							Q-Timer / 24-Hour ON or OFF							Q-Timer / 24-Hour ON or OFF
	Fan speed		Indoor/Outdoor		3 Steps and Turbo / 1 Step							3 Steps and Turbo / 1 Step								3 Steps and Turbo / 1 Step							3 Steps and Turbo / 1 Step
	Airflow direction (indoor)			Horizontal			Manual								Manual						Manual								Manual
				Vertical				Auto							Auto							Auto							Auto
	Comperssor					Reciprocating(Tecumseh)							Reciprocating(Tecumseh)								Rotary(SAMSUNG)						Rotary(SAMSUNG)
Features	Refrigerant/Amount charged at rating			g			R22 / 1,600g							R22 / 1,600g							R22 / 1,550g							R22 / 1,550g
	Refrigerant control						Capillary tube							Capillary tube							Capillary tube							Capillary tube
	(Sound pressure)		Indoor Hi/Me/Lc dB-A				45 / 43 / 41							45 / 43 / 41							45 / 42 / 39							45 / 42 / 39
			Outdoor-Hi	dB-A				58							58							55							55
	Refrigerant tubing connections						Flare type							Flare type							Flare type								Flare type
	Max. allowable tubing length at shippint			m				10							10							10							10
	Refrigerant tube diameter		Narrow tube	(in.)			6.35(1/4”)							6.35(1/4”)							6.35(1/4”)								6.35(1/4”)
			Wide tube	(in.)			15.88(5/8”)							15.88(5/8”)							12.70(1/2”)							12.70(1/2”)
	Refrigerant tube kit/Accessories					Optional / Hanger-plate							Optional / Hanger-plate								Optional / Hanger-plate						Optional / Hanger-plate
					Indoor unit				Outdoor			Indoor unit				Outdoor			Indoor unit				Outdoor			Indoor unit				Outdoor
	Unit dimensions		Height	mm	275				638			275				638			275				620			275				620
			Width	mm	1080				880			1080				880			1080				787			1080				787
Dimensions			Depth	mm	204				310			204				310			204				320			204				320
	Package dimensions		Height	mm	372				851			372				851			372				680			372				680
&			Width	mm	1153				1023			1153				1023			1153				926			1153				926
Weight
			Depth	mm	272				413			272				413			272				451			272				451
	Weight		Net	kg	13				63.0			13				63.0			13				46.0			13				46.0
			Shipping	kg	16				67.0			16				67.0			16				50.0			16				50.0

Remarks : Rating Conditions are : Indoor air temperature Outdoor air temperature

ISO(50Hz) : 27˚C DB/19.0˚C WB, ISO(60Hz) : 27.0˚C DB/19.5˚C WB

ISO : 35.0˚C DB/24.0˚C WB

Samsung Electronics	2-1

2-2 Major Component specifications

■ Indoor unit

		Model				AQT24A1(B1)QE / AQT24A2(B2)QE / SH24ZV	AQT24A1(B1)QB / AQT24A2(B2)QB	AQ18A1(B1)QE / AQ18A2(B2)QE / SH18ZV	AQ18A1(B1)QB / AQ18A2(B2)QB
PCB	Part No.					PD-Q24B1Q-03	PD-Q24B1Q-03	PD-Q24B1Q-09	PD-Q24B1Q-09
	Controls					Microprocessor	Microprocessor	Microprocessor	Microprocessor
	Control circuit fuse					250V, 3.15A	250V, 3.15A	250V, 3.15A	250V, 3.15A
	Type					Cross-Flow	Cross-Flow	Cross-Flow	Cross-Flow
	Dia. and length				mm	ø95/L = 842	ø95/L = 842	ø95/L = 842	ø95/L = 842
	Fan motor model					IC-9430SKJ5A	IC-9430SKF6A	IC-9430SKJ5A	IC-9430SKF6A
Fan &	Pols,rpm(at 240V)					4P, 1350 RPM	4P, 1350 RPM	4P, 1350 RPM	4P, 1350 RPM
	Normal out				W	40W	40W	40W	40W
Fan
	Coil resistance(Ambient temp.20˚C)				Ω	MAIN : 160Ω	MAIN : 140Ω	MAIN : 160Ω	MAIN : 140Ω
Motor
						SUB : 227Ω	SUB : 280Ω	SUB : 227Ω	SUB : 280Ω
	Safety devices		Type			17AM034A5	17AM034A5	17AM034A5	17AM034A5
	Run capacitor		Operating temp.	Open	˚C	135 ± 5°C	135 ± 5°C	135 ± 5°C	135 ± 5°C
				µF x VAC		1.2µF X 450VAC	1.2µF X 450VAC	1.2µF X 450VAC	1.2µF X 450VAC
	Type
S-Motor	Model					MSFCC20A03	MSFCC20A03	MSFCC20A03	MSFCC20A03
	Rating					DC 12V	DC 12V	DC 12V	DC 12V
	Coil resistance (Ambient temp. 25˚C)				Ω	530Ω	530Ω	530Ω	530Ω
Heat	Coil					AL-FIN/Copper tube	AL-FIN/Copper tube	AL-FIN/Copper tube	AL-FIN/Copper tube
	Rows x Steps					2 x 15	2 x 15	2 x 15	2 x 15
Exch.	Fin pitch				mm	1.2	1.2	1.5	1.5
	Face area				m2	0.315	0.315	0.315	0.315
■ Outdoor unit
		Model				UQT24A1(B1)QE / UQT24A2(B2)QE / XSH24ZV	UQT24A1(B1)QB / UQT24A2(B2)QB	UQ18A1(B1)QE / UQ18A2(B2)QE / XSH18ZV	UQ18A1(B1)QB / UQ18A2(B2)QB
	Type					Reciprocating	Reciprocating	Rotary	Rotary
	Compressor model					AWG5532EXC	AWG5528EXN	48B180JV1E7	48B190IV2E7
	Normal output				W	2660	2830	1885	1885
	Comperssor oil kind					WITCO LP200 OR EQUIVALENT	WITCO LP200 OR EQUIVALENT	SUNSO-4GSD-T	SUN1SO-4GSD-T
	Comperssor oil				cc	INITIAL : 1125 REFILL : 1066	INITIAL : 1125 REFILL : 1066	600	600
	Oil Specific gravity					0.92	0.92	0.92	0.92
Compressor	Coil resistance(Ambient temp.25˚C)				Ω	Start winding : 2.49	Start winding : 1.94	Common to main : 1.84	Common to main : -
						Run winding : 0.81	Run winding : 0.88	Common to sub : -	Common to sub : -
	Safety devices		Type			15HM2415-148	15HM2415-148	MRA12016-12007	MRA12016-12007
			Overloal relay			Internal Line Break	Internal Line Break	External Line Break	External Line Break
			Operating temp.	Open	˚C	120	120	165°C	165°C
				Close	˚C	69	69	74°C	74°C
			Operating amp(Ambient temp.)			73.0 AT 2-10 SECOND	73.0 AT 2-10 SECOND	120·°C : 10.7A 130°C : 9.4A	120·°C : 10.7A 130°C : 9.4A
	Run capacitor			µF x VAC		45MF X 370VAC	35MF X 370VAC	40µF X 450VAC	40µF X 450VAC
	Type					Propeller	Propeller	Propeller	Propeller
	Dia. and length				mm	ø460	ø460	ø405	ø405
	Fan motor model					OSME-716SRC	OSME-716SRC	AMASS-035AVEB	AMASS-035ZTEA
Fan &	Pols, rpm(at240V)					6P, 850 RPM	6P, 850 RPM	4P, 1050 RPM	4P, 1050 RPM
	Normal output				W	70W	70W	35W	35W
Fan	Coil resistance(Ambient temp.20˚C)				Ω	MAIN : 58Ω - 88Ω	MAIN : 58Ω - 88Ω	MAIN : 186Ω	MAIN : 127Ω
Motor						SUB : 85Ω - 150Ω	SUB : 85Ω - 150Ω	SUB : 210Ω	SUB : 165Ω
	Safety devices		Type			17AM034A5	17AM034A5	17AM037A5	17AM037A5
			Operating temp.	Open	˚C	135±5°C	135±5°C	150±5°C	150±5°C
				Close	˚C
	Run capacitor			µF x VAC		3µF x 450VAC	3µF x 450VAC	2.5µF x 450VAC	2.5µF x 450VAC
Heat	Coil					AL-FIN / Copper tube	AL-FIN / Copper tube	AL-FIN / Copper tube	AL-FIN / Copper tube
	Rows x Steps					2 x 24	2 x 24	2 x 24	2 x 24
Exch.	Fin pitch				mm	1.7	1.7	1.7	1.7
	Face area				m2	0.5376	0.5376	0.504	0.504

2-2	Samsung Electronics

2-3 Dimensions

2-3-1 Indoor Unit

(Remote control)

(Front view)

1080	58	22
	204

(Rear view)

2-3-2 Outdoor Unit
2-3-2(a) 24K BTU
(Front view)	(Rear view)
	660
	878
Samsung Electronics	2-3

Product Specifications

2-3-3(b) 18K BTU
(Front view)	(Rear view)
582	340
787

2-4	Samsung Electronics

2-4 Pressure Graph

24K BTU

18K BTU

Samsung Electronics

2-5

M E M O

2-6	Samsung Electronics

3. Operating Instructions and Installation

3-1 Operating Instructions

3-1-1 Name & Function of Key in remote controller

NO			NAMED OF KEY				FUNCTION OF KEY
1					On/Off Button. Use this button to start and stop air conditioner.
2				(UP)	Temp. up button. If the		button is pressed once,
					the setting temperature is increased by 1°C
				(DOWN)	Temp. down button. If the		button is pressed once,
					the setting temperature is decreased by 1°C
3					Each time you press this button,				: Auto Mode	: Fan Only Mode
		MODE			MODE is changed in the following order.				: Cool Mode	: Heat Mode
									: Dry Mode
4		TURBO			Use this button to provide heavy duty cooling & Heating for 30 minutes.
5		OFF			Set up the reserve or cancel the timer on and timer off quickly
6					Use this button for sleep operation.
					(The SLEEP mode can be selected at COOL and HEAT mode.)
7					Adjusts air flow vertically.
8					Each time you press this button,
					FAN SPEED is changed in the following order.
9	C		ON TIMER		Set up the time that operation start.
	O
10
	V		OFF TIMER		Set up the time that operation stop.
	E
11	R		SET		Use this button to reserve the timer on.
		T
12			CANCEL		Use this button to reserve or cancel the timer on and timer off.
		I
		M
13
		E		(UP)	If the	button is pressed once, the time increase by one minute
		R			during the time set mode, and ten minutes during the timer set mode.
14				(DOWN)	If the	button is pressed once, the time decrease by one minute
					during the time set mode, and ten minutes during the timer set mode.
15					Without regard to ON/OFF condition in remote controller,
			TIME		use this button to set current time.
					Adjust the current time using			button.
					(Data can be transmitted after setting up the time)

Samsung Electronics

3-1

Operating Instructions and Installation

3-1-1 Name & Function of Key in remote controller

1.AUTO MODE : In this mode, operation mode(COOL, HEAT) is selected automatically by the room temperature of initial operation.

Room Temp	Operation Type
Tr³ 21°C+DT	Cool Operation (Set Temp:24°C+DT)
21°C +DT>Tr	Heat Operation (Set Temp : 22°C+DT)

DT= -2°, -1°C, 0°C+1°C+2°C

DT is controlled by setting temperature up( )/down( ) key of remote controller

2.COOL MODE : The unit operates according to the difference between the setting and room temperature. (18°C~30°C)

3.HEAT MODE : The unit operates according to the difference between the setting and room temperature.(16°C~30°C) *Prevention against cold wind : For about 3~5 minutes after initial operation, thermo control or “de-ice”, the indoor fan will either not operate or operate very slowly, then switch to the selected fan speed. This period is to allow the indoor unit's heatexchanger to prewarm before emitting warm air.

*High temperature release function : The outdoor unit for and compressor ON/OFF control for safety operation, when the overheat is heat exchanger of indoor unit. *De-ice : Deicing operation is controlled by indoor unit's heat exchanger temperature and accumulating time of compressor's operation.

De-ice end by sensing of the processing time by de-ice Condition.

4.DRY MODE :

The unit operates in DRY mode. *Compressor ON/OFF Time is controlled compulsorily(can not set up the fan speed, always breeze).

*Protective function : Low temperature release. (Prevention against freeze)

5.TURBO MODE : This mode is available in AUTO, COOL, HEAT, DRY, FAN MODE. When this button is pressed at first, the air conditioner is operated “powerful” state for 30 minutes regardless of the set temperature, room temperature.

When this button is pressed again, or when the operating time is 30 minutes, turbo operation mode is canceled and returned to the previous mode.

*But, if you press the TURBO button in DRY or FAN mode that is changed with AUTO mode automatically.

6.SLEEP MODE : Sleep mode is available only in COOL or HEAT mode.

The operation will stop after 6 hours.

*In COOL mode : The setting temperature is automatically raised by 1°C each 1hour When the temperature has been raised by total of 2°C, that temperature is maintained.

*In HEAT mode : The setting temperature is automatically droped by 1°C each 1hour. When the temperature has been droped by total of 2°C, that temperature is maintained.

7.FAN SPEED : Manual / Auto

Fan speed automatically varies depending on both the difference between setting and the room temperature.

3-2	Samsung Electronics

8.COMPULSORY OPERATION :

For operating the air conditioner without the remote controller.

*AUTO : The operating is the same function that AUTO MODE in the remote controller.

9.SWING : BLADE-H is rotated vertically by the stepping motor.

*Swing Set / Auto		: Press the	button
under the remote control is			on
LCD the	and the blades move up and
down,	43°. If the one more time press

the button, blatles location is stop.

10. Quick OFF TIMER: OFF timer (quick timer) allows reservation or cancel the timer on and timer off quickly

When OFF timer button is pressed at operating state, LCD displays the polling state sequentially.

The LCD also displays the time remaining.

Operating Instructions and Installation

11.24-Hour ON/OFF Real Setting Timer. : The air conditioner is turned ON at a specified time using ON TIMER .

OFF TIMER : The air Conditioner is turned OFF at a specified time using OFF TIMER . *ON TIMER : Only timer LED lights on.

*OFF TIMER : Both timer and operation LED lights on.

12.SELF Diagnosis

	LED DISPLAY		Check Point
	oper-	TIMER FAN Turbo
	ation

Interruption of electric power and Power on.

Abnormal condition of the room sensor.

Abnormalconditionoftheindoorunit'sheatexchangersensor.

Indoor unit fan motor lock.

: LED	: LED off
blinking

13.BUZZER SOUND : Whenever the ON/OFF button is pressed or whenever change occurs to the condition which is set up or select, the compulsory operation mode, buzzer is sounded "beep"

Samsung Electronics

3-3

3-2 Installation

3-2-1 Selecting Area for Installation

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

3-2-1(a) 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 and 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.

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

5.Make sure that you install the indoor unit in an area away from TVs, audio units, cordless phones, fluorescent lighting fixtures and other electrical appliances (at least 1 meter).

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

7.Make sure that you install the indoor unit in an area which is large enough to accomodate the measurements shown in figure on the next page.

3-2-1(b) Outdoor Unit

1.Make sure that you install the outdoor unit in area not exposed to the rain or direct sun light.

(Install a separate sunblind if exposed to direct sun light.)

2.Make sure that you install the outdoor unit in area allowing good air moment, not amplifying noise or vibration, especially to avoid disturbing neighbours.

(Fix the unit firmly if it is mounted in a high place.)

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

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

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

7.Make sure that you install the outdoor unit in area which provides easy connection within the maximum allowable length of a coolant pipe(10 meters).

Note

1.Add (18XX:20g, 24XX:30g) of refrigerant (R-22) for every 1 meter if the pipe length exceeds the standard pipe length of 5 meters.

2.Maintain a height between the indoor and outdoor units of less than 3 meters.

8.Make sure that you install the outdoor unit in an area which is large enough to accommodate the measurements

shown in figure on the next page.

3-2-1(c) Remote Control Unit

1.Make sure that you install the remote control unit in an area free from obstacles such as curtains etc, which may block signals from the remote control unit.

2.Make sure that you install the remote control unit in an area not exposed to

direct sunlight, and where there is no source of heat.

3.Make sure that you install the remote control unit in an area away from TVs, audio units, cordless phones, fluorescent lighting fixtures and other electrical appliances (at least 1 meter).

Caution :

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

3-4	Samsung Electronics

Operating Instructions and Installation

3-2-2 Installation diagram of indoor unit and outdoor unit

A Indoor unit gas leak test check point			Piping may be laid to the rear, left,
			right or down .
Indoor unit	3
			Right		Left
	2		Rear		Rear
Piping				Down
1	Tape vinyl

B Drain hose installation

125mm or more

125mm or more

Cut the piping hole sloped slightly

5 6

Remote control

4

Remote control holder

10

1		Piping (Liquid) 1/4"		6	Clamper tube
2	18K BTU		Piping(Gas) 1/2”	7	Installation plate
	24K BTU		Piping(Gas) 5/8”
3		Installation tube		8	Pipe-connection
4		Vinyl tape		9	Screw
5		Putty		10	Drain hose

Samsung Electronics

3-5

Operating Instructions and Installation

3-2-2(a) Fixing the Installation Plate

Installation plate

1.Determine the position of the pipe and drain hose hole using the right figure and drill the hole with an inner diameter of 65mm so that it slants slightly downwards.

2.If you are fixing the indoor unit to a… Then follow Steps…

Wall	3.
Window frame	4 to 6.

(Unit : mm)

288

		3. Fix the installation plate to the wall in a manner appro-
		priate to the weight of the indoor unit.
	227	If you are mounting the plate on a concrete wall with
		anchor bolts, the anchor bolts must not project by more
		than 20mm.

512

415

(Unit : mm)

3-2-2(b) Purging the Unit

4.Determine the positions of the wooden uprights to be attached to the window frame.

5.Attach the wooden uprights to the window frame in a manner appropriate to the weight of the indoor unit.

6.Using tapped screws, attach the installation plate to the wooden uprights, as illustrated in the last figure opposite.

On delivery, the indoor unit is loaded with an inert gas. All this gas must therefore be purged before connecting the assembly piping. To purge the inert gas, proceed as fol - lows.

Unscrew the caps at the end of each pipe.

Result : All inert gas escapes from the indoor unit.

•To prevent dirt or foreign objects from getting into the pipes during installation, do NOT remove the caps completely until you are ready to connect the piping.

3-6	Samsung Electronics

Operating Instructions and

3-2-2(c) Connecting the Assembly Cable.

The indoor unit is powered from the outdoor unit via the assembly cable. If the outdoor unit is more than five metres away from the indoor unit, the cable must first be extended to a maximum of 15 metres.

1.Extend the assembly cable if necessary.

2.Open the front grille by pulling on the tabs on the lower right and left sides of the indoor unit.

3.Remove the screw securing the connector cover.

Indoor

unit 4. Pass the assembly cable through the rear of the indoor unit and connect the assembly cable to terminals 1 to 5.

			• Each wire is labelled with the corresponding terminal number.
		5.	Firmly fix the ass’y cable with clamp wire holder.
		6.	Pass the other end of the cable through the 65mm hole in the wall.
	Outdoor	7.	Replace the connector cover, carefully tightening the screw.
	unit
		8.	Close the front grille.
		9.	For further details on how to plug the other end of the assembly
			cable into the outdoor unit, refer to page 3-8.

3-2-2(d) Installing and Connecting the Indoor Unit Drain Hose

Care must be taken when installing the drain hose for the indoor unit to ensure that any condensa - tion water is correctly drained outside.l When passing the drain hose through the 65mm hole drilled in the wall, check that none of the following situations occur.

The hose must		The end of the drain		Do NOT bend the		Keep a clearance of at
NOT slope upw		hose must NOT be		hose in different		least 5cm between the
ards.		placed in water.		directions.		end of the hose and the
						ground.

Do NOT place the end of the drain hose in a hollow.

To install the drain hose, proceed as follows.

1.If necessary, connect the 2-metre extension to the drain hose.

2.If you are using the extension, insulate the inside part of the extension drain hose with a shield.

3.Pass the drain hose under the refrigerant piping, taking care to keep the drain hose tight.

4.Pass the drain hose through the hole in the wall, making sure that it is sloping downwards, as shown in the illustrations above.

Shield

Drain hose

Extension drain hose

Samsung Electronics

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