Hitachi RPC-2.0FSR - ELECTRICAL WIRING; 15 Electrical Wiring; 15.1 General Check; 15.2 Wiring Specifications and Connections

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A10762300A-rev.1
7.4 TransitionWiringforWiredController
Inthetwin,triple,andquadcombinationofindoorunits,thetransitionwiringforthewiredcontrollerisnot
required.However,whenconnectingindoorunitswithouttransitionwiringforwiredcontroller,thefollowings
arelimited.
(2)ThefollowingconnectionisNOTavailable.
(a) ConnectionbetweenMainUnitswithoutTransitionWiring
Whentheindoorunitsinmultiplerefrigerantcyclesarecontrolledbyonewiredcontroller,allthe
indoorunitsarerequiredtobeconnectedwiththetransitionwirings.
(b) ConnectionbetweenMainUnitwithoutTransitionWiringandUnitwithTransitionWiring
Whentheindoorunitsinmultiplerefrigerantcyclesarecontrolledbyonewiredcontroller,allthe
indoorunitsarerequiredtobeconnectedwiththetransitionwirings.
(1) Thefollowingfunctionsareavailabletosetonlyto
themainunitwiththewiredcontrollerPC-ARF1.
 *“RemoteON/OFFfunction,1and2"
*“PowersupplyON/OFFfunction,1and2"
*“Prohibitingoperationbywiredcontroller”
Incorrect Correct
Incorrect Correct
(c) ConnectingWiredControllertoSubunitwithoutTransitionWiring
Whentheindoorunitsarecontrolledby2wiredcontrollers,thesubwiredcontrollershallbe
connectedtothemainunit.
Incorrect Correct
Power Source Wiring
Transition wiring is unnecessary.
Wired
Controller
(PC-ARF1)
Main
Sub Sub SubMain
Main
Sub Sub SubMain
Main
Sub Main Sub
Main
Sub Main Sub
Main
Sub
Main
Sub