Johnson Controls HVAHP048B21S - Electrical Wiring Procedures

OUTDOOR UNITS
TC-16001-rev.5
2-41
2.15.1 Electrical Wiring Connection
2.15 Electrical Wiring
● ThisequipmentcanbeinstalledwithaGroundFaultCircuitInterrupter(GFCI),whichisa
recognizedmeasureforaddedprotectiontoaproperlygroundedunit.Installappropriatesized
breakers/fuses/overcurrentprotectionswitchesandwiringinaccordancetolocal,stateandNEC
codesandrequirements.Theequipmentinstallerisresponsibleforunderstandingandabidingby
applicablecodesandrequirements.FailuretouseaGFCIcouldresultinelectricshockorre.
● Performtheelectricalworkaccordingtotheregulationsofeachregionandthisinstallationand
maintenancemanual.Aseparate,dedicatedelectricalcircuitmustbeused.Iftheelectricalwiring
workisperformedincorrectlyorthereisacapacityshortageofthepowercircuit,itwillcausean
electricshockorare.
● Checkthatthegroundwireissecurelyconnected.Iftheunitisnotcorrectlygrounded,itmaylead
toanelectricalshock.
Donotconnectthegroundwiringtogaspiping,waterpiping,lightingconductor,ortelephone
groundwirings.
(1) Power Supply Wiring
Supply the power sources to each outdoor unit and indoor unit group respectively.
Using this method is a basic principle of power supply wiring.
Indoor
Unit
Indoor
Unit
Outdoor
Unit
A
Outdoor Unit Power Source
AC 1~ 208/230V 60Hz
1
2
1
3
3
4
5 5
6
5
7
77
666
5
4
Indoor Unit Side
S
GFCI
Indoor Unit
Power Source
AC 1~ 208/230V 60Hz
Pull Box Pull Box
GFCI (Ground Fault Circuit Interrupter)
S (Main Switch and Fuse)
2
Power Supply Wiring (O.U.)
Ground Wiring (O.U.)
Communication Cable (O.U. ~ I.U.)
Power Supply Wiring (I.U.)
Ground Wiring (I.U.)
S
GFCI