User Guide

Wiring
See Figure 7 through Figure 12 for typical wiring
diagrams, or refer to the compressor manufacturer’s
specifications. Make all wiring connections using
copper conductors only. Ensure all wiring conforms to
the National Electrical Code and local regulations.
!
WARNING: Risk of Electric Shock.
Disconnect power supply before making electrical
connections. Contact with components carrying
hazardous voltage can cause electric shock and
may result in severe personal injury or death.
Wire the P400 Switch
Use this procedure to connect the P400 switch to the
control:
1. Insert the plug into the connector until it snaps and
locks in place. See
Figure 6.
2. Connect the wiring harness to the P545 control at
P2. See
Figure 13 for the location and orientation
of the differential oil pressure switch connection.
Note: The control does not function properly if the
wiring harness is connected improperly at the circuit
board.
12011012_6.cdr
Lube Oil Switch
Wiring
Harness
To P2 Connector
Insert
Plug
Switch
Nozzle
Gasket
Figure 6: Connecting the Wiring Harness to the
P400 Switch
Internal Wiring Diagram
M1
M2
L2
120
240
P545
NCANOA
CMA
Factory-Mounted
External Metal Jumper
Do not connect circuit interrupts here.
Circuit interrupts are permitted here
.
12011012_7.cdr
Figure 7: Internal Wiring Diagram for the P545 Control
P545 Series Electronic Lube Oil Control Product/Technical Bulletin 5