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Single Phase Wiring
Three Phase Wiring
14
ELECTRICAL WIRING DIAGRAMS
NOTE
On units requiring a starter, connect line power to the starter. do not connect
line power to the pressure switch.
l
Connect ground wire to ground lug
l
L3 used for 3-phase motors & starters only
http://air.irco.com
A
To supply
C
Wiring for optional electric drain valve
EDV
Electric drain valve
T
Supply Line Terminal
L
Load Terminal
FU
Control Circuit Fuse
HATS
High Air Temperature Switch (#)
LOLS
Low Oil Level Switch (#)
M
Motor Starter Coil
OL
Motor Starter Overload
PS
Pressure Switch
SS
Selector Switch (#)
*
Alternate wiring for converting 3 phase starter to 1
phase application
(#) = if provided
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