Hitachi RPC-2.0FSR - Page 36

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A10762300A-rev.1
(10) InCasethatPowerSource(220V/240V)Is
AppliedtoControlLine
If220V/240Visappliedtothecontrolline
(Terminal1and2ofTB2)duetomistake,
thefuseonthePCBforthecontrollinewill
blowout.Inthiscase,performtherecovery
workasshowninthebelow.
(a)Reconnectthewiringscorrectly.
(b) SetNo.1pinofDSW7(onPCB)atON
side.
 PCBisrecoveredfromthefuseblowingout.
However,if220V/240Visappliedtothe
controllineagain,PCBwillbreakandnotbe
abletorecover.
(11) WiredControllerConnection
(a) InstallingWiredControllertoeachUnit
withIndividualOperationSetting
(b) InstallingOneWiredController
withIndividualOperationSetting
(c) SimultaneousOperation
(TheindoorunitisH-LINKIImodel.)
(d) ConnectingWiredControllerinCaseof
ConnectingbetweenRefrigerantCycles
T
 Thisindoorunitisadoptedfour(4)stepsoffan
speed(HIGH2,HIGH,MEDandLOW).When
installingthisindoorunitwiththree(3)stepsof
fanspeedtype,connectthewiredcontrollerto
four(4)stepsoffanspeedtype.Ifnot,“HIGH2”
willnotbeindicatedandcannotbeselected.
l
Thesimultaneous
operationisavailable
upto4indoorunits.
(9) Thewiringworkfortheindoorunitshouldbe
performedaccordingtotheelectricalwiring
diagramand“Installation&Maintenance
Manual”oftheoutdoorunit.
● ForUTOPIASeries
● ForSETFREESeries
(a) WiredControllerstoeachUnitfor
IndividualOperationSetting
(b) OneWiredControllerfor
IndividualOperationSetting
L1
R
N
A
C 220V/240V
Incorrect Wiring
Reconnect wiring correctly.
5V
AB12
S
L1
R
N
A
C 220V/240V
5V
AB12
S
ON
OFF
DSW7
Set No.1 Pin
at ON side.
PCB
12
Indoor Unit Indoor Unit
Wired
Controller
A B
Outdoor Unit
Wired
Controller
A B
Outdoor Unit
Indoor Unit
A B
Wired
Controller
The transition wiring
for the wired controller
is necessary.
Indoor Unit
A B
Outdoor Unit
Indoor Unit
A B
Wired
Controller
A B
Indoor Unit
Outdoor Unit
A B
Outdoor Unit
Indoor UnitIndoor UnitIndoor Unit Indoor Unit
Wired
Controller
A B
A BA B
Individual
Simultaneous
(Thermo ON / OFF individually)
Individual
Wired
Controller
Wired
Controller
Indoor Unit Indoor Unit
Wired
Controller
A B
Outdoor Unit
Wired
Controller
A B
Outdoor Unit
Indoor Unit
A B
Wired
Controller
The transition wiring
for the wired controller
is necessary.
Indoor Unit
A B
ON
OFF
DSW6
Set No.1 Pin
at OFF side.
PCB1
12