Multi F Outdoor Unit Engineering Manual

WIRING CONNECTIONS
Figure 99: Multi F LMU187HV System Power Wiring and Communications Cable.
Outdoor Unit
L1 L2 1(L1) 2(L2) 3(A) 3(B)
Outdoor Unit Terminal Block
L1
L1
L2
L2
G
Power Supply
Main Switch
Circuit Breaker
Fuse
Three-wire Power Wiring
(Including Ground)
COMMUNICATION CABLE
POWER WIRING
1(L1) 2(L2)
Indoor Unit Terminal Block
Unit A Unit B
3
1(L1) 2(L2) 3
Indoor Unit Terminal Block
•Allfield-suppliedwiring,components,andmaterialsshouldfollownational,state,andlocalcodesandrequirements.
•Useonlystranded,shieldedcopperconductor.
•Ground wiring isrequiredtopreventaccidental electrical shock during current leakage,communicationproblemsfromelectrical
noise,andmotorcurrentleakage.Donotconnectthegroundlinetothepipes.
•Installamainshutoffswitchorcircuitbreakerthatinterruptsallpowersourcessimultaneously.
•Wiringcablesizemustcomplywithapplicablenational,state,andlocalcodes.
Power Wiring (208-230V) and Communications Cable Details
Due to our policy of continuous product innovation, some specications may change without notication.
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224 | WIRING CONNECTIONS
Multi F and Multi F MAX Heat Pump System Engineering Manual
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