1. Check if you pulled out the AC power plug when you eliminate the PCB or front panel
2. Don't hold the PCB side not impose excessive force on it to eliminate the PCB
3. Don’t pull the lead wire but hold the whole housing to connect or disconnect a connector to the PCB
4. In case of outdoor PCB disassembly, check first the complete discharge of condenser after 1 minute power off
1. Check connector connection and peeling of PCB or bronze coating pattern when you think the PCB is broken
2. The PCB is composed of 3 parts
fan motor sensing and driving circuit, temperature sensing circ
uit
circuit. Communication circuit
sensing and driving circuit, compressor driving circuit
ontrol circuit, 4way circuit, communication circuit,
temperature sensing circuit)
1
2-3
New Function [ Indoor Terminal Block Safety Device ]
1.Thermal Fuse is installed in Terminal Block as below.
(Thermal Fuse is used to prevent PL caused by a defective connection of indoor and
outdoor units)
2. Thermal Fuse is opened when internal temperature of Terminal Block goes to a certain point
due to Tracking caused by a defective connection of indoor and outdo or units.
- When Thermal Fuse is opened, Main PBA (DC12V) is turned off and the indoor unit does
not operate. (There is no problem with Main PBA in this case)
- In the above case, the change of all-in-one Terminal Block will make Main PBA operate again.
Ci r cui t Bl ock
3. Measurement metho d of fair/defective thermal fuse
<Ter m
i nal Bl ock I nt er nal s>
<Connnect i on of t er m
i nal bl ock and Mai n PBA>
Fai r ( SHORT)
Def ect i ve( OPEN)
No
Procedure
Inspec
Ɵ
on Method
Cause
1
Plug out and pull the
PCB out of the contol box
Check the PCB fuse
1) Is 1st fuse disconnected?
2) Is 2nd fuse disconnected?
˱
Over current
˱
Indoor Fan motor short
˱
AC part and pa
Ʃ
ern short of Indoor PBA
Check the power viltage
1) Is the BD71 input voltage 200Vac ~240Vac?
Power cord is fault, Fuse open, Wrong Power
cable Wiring, AC part is faulty
2) Is the voltage between both terminal
of
C111(+)-(-) 12Vdc?
Switching Trans of Power circuit is faulty
3) Is the voltage between both terminal
of
C118(+)-(-) 5Vdc?
Power circuit is faulty, Load short
1) Is the voltage over DC 270V being
imposed on terminal #1~#3 of fan motor
connector(CN72)?
Fan motor of the inddor is faulty.
2) The fan motor of the indoor unit doesn't run
Fan motor connector(CN72) is faulty
3) The power voltage between terminal
#1~#3
of the connector(CN72) is 0V
PBA is faulty
Supply power
If the opera
Ɵ
ng lamp twinkles
at this
Ɵ
me, the above 1)~3)
have no rela
Ɵ
on
Press the ON/OFF bu
Ʃ
on
1. Fan speed(high)
2. Con
Ɵ
nuous Opera
Ɵ
on
2
3
Содержание AR09FSSYAWTNEU
Страница 3: ...Operating Instructions and Installation 2 Samsung Electronics Content s 15 NOZONE SUMMIT...
Страница 11: ...indoor unit for 3 times in 2seconds...
Страница 15: ...3 3 2 3 3 Setting Option Setup Method continue...
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Страница 26: ...4 2 1 4 2 Outdoor Unit AQV KBB AQV KBBSER 3 Detach the Cabinet Upper like the picture...
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Страница 33: ...5 66 71 8...
Страница 34: ...5 66 1 8 02...
Страница 35: ...Samsung Electronics 5 4 5 4 Ass y Control Out AR09FSSYAWTXEU AR09FSSKABEXEU...
Страница 37: ...Samsung Electronics 6 2 6 2 ASSY WIF PCB 4709 002063...
Страница 38: ......
Страница 39: ......
Страница 42: ...0VUEPPS 6OJU 5IJT PDVNFOU DBO OPU CF VTFE XJUIPVU 4BNTVOH T BVUIPSJ BUJPO 4BNTVOH MFDUSPOJDT...
Страница 43: ......
Страница 44: ...Electronics 9 2 Samsung Circuit Descriptions Circuit Descriptions 9 1 2 Outdoor Unit...
Страница 45: ...9 2...
Страница 48: ...10 3 10 3 WIFI PCB 3...
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Страница 86: ...DC3 3V DC5V DC12V DC15V DC325V AC230V EEPROM R W CONTROL BLDC 13 2...
Страница 87: ...81 5 8 5 6 6 7 1 8...
Страница 89: ...4BNTVOH MFDUSPOJDT 1SFTTVSF BQBDJUZ NBSL Q 1PXFS FBU 8 DBM T LDBM I UV I 1 LH N T C N T Y...
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