Hitachi RPC-5.0FSR - 13.2 Piping Connection

28
A10762300A-rev.1
● ChecktherecommendedsizeoftheELBshowninTable.
Selecthigh-sensitivehighspeedELBwhentheratedsensitivecurrentislessthan30mA.(Themotion
timeshouldbewithin0.1second.)
● Use2corecable(equivalenttofollowingcables:VCTF,VCT,CVV,MVVS,VVRorVVF,size:0.75mm
2
to1.25mm
2
(manufacturedbyHITACHICableCo.Ltd.))or2coretwistpaircable(equivalenttofollowing
cables:KPEVorKPEV-S(manufacturedbyHITACHICableCo.Ltd.))forthecontrolcablebetweenthe
outdoorunitandtheindoorunit.Thetotalcablelengthshouldbelessthan1000m.
● Use2coretwistpaircable(equivalenttofollowingcables:KPEVorKPEV-S)forthecontrollercable
andthecontrolcablebetweenindoorunits.Thetotalcablelengthshouldbelessthan500m.Ifthetotal
lengthofthecableislessthan30m,othercablescanbeused(thecablesizeis0.3mm
2
).
● Selectthewiringsize,ELB(EarthLeakageBreaker)andisolatingswitchaccordingtoeachregulationof
regionand“Installation&MaintenanceManual”,andthededicatedelectricalcircuitmustbeused.
● Ontheoutsideindoorunit,thepowersourcecable,controlcableandcontrollercableshallbeinstalled
separatelyaspossible.
(2) ForSETFREESeries
Selectwiringcapacityaccordingtothefollowingtable.InstalltheELBandthemainswitchtoeachas
shownintheguresbelow.
Total
IndoorUnit
Capacity
PowerSource
EarthWire
Size
(mm
2
)
Transition
WireSize
forControl
Circuit
(mm
2
)
Controller
Cable
(mm
2
)
ELB MainSwitch
Minimum
WireSize
(mm
2
)
Wiring
Line
Length
(m)
*1)
Rated
Current
(A)
Switch
Capacity
(A)
Fuse
Capacity
(A)
*9 *10 *10 *11 *12 *13
< 7A 15 30 15 2.5 30
3.5
2 Core
Cable
0.75~1.25
0.75
<10A 20 30 20 4.0 34
< 15A 30 30 30 6.0 34
ELB: EarthLeakageBreaker
*1): Theabovewiringlinelengthshowsthecasethattheindoorunitsareconnectedinseries.(Thevoltagedrop
iswithin2%.)Whenthepowersourcewiringislongerthantheabovevalue,selecttheminimumwiringsize
whichthevoltagedropiswithin2%.
< Heat Pump System > < Heat Recovery System >
Table7.2RecommendedWiringCapacityandSizeforSETFREESeries
NOTICE
Outdoor
Unit
Indoor
Unit
Pull Box
Outdoor Unit
Power Source
Indoor Unit
Power Source
Indoor
Unit
Indoor
Unit
ELB
Main
Switch
ELB
*9, *10
*11
*12
*12*12
*13*13
*13
Main
Switch
Refer to “Installation & Maintenance Manual”
of connected outdoor unit for details of wire,
ELB and main switch for outdoor unit.
*11 *11
Outdoor Unit
Power Source
Outdoor
Unit
CH Unit
Indoor Unit
Power Source
Indoor
Unit
Pull Box
Indoor
Unit
Indoor
Unit
ELB
Main
Switch
ELB
*9, *10
*11
*11
*12
*13
*13
*13
*13
Main
Switch
*12
*12
*11*11
Refer to “Installation & Maintenance Manual”
of connected outdoor unit for details of wire,
ELB and main switch for outdoor unit.