Product Overview

Ladder Diagrams for the P545 Control
M1
M2
L2
120
240
P545
NCANOA
CMA
L1
L2 L3
Compressor
Contactor
Wire Jumper
Low
Pressure
Control
High
Pressure
Control
Alarm
Connection
12011012_8.cdr
Figure 8: Typical P545 Control Application with Alarm Circuit Powered by Line Voltage
Low
Pressure
Control
High
Pressure
Control
M1
M2
L2
120
240
P545
NCA
NOA
CMA
L1
L2 L3
Compressor
Contactor
Alarm
Connection
Power
for Alarm
Circuit
12011012_9.cdr
Figure 9: Typical P545 Control Wiring with Alarm Circuit Powered by a Separate Voltage
M1
M2
L2
120
240
P545
NCA
NOA
CMA
L1
L2
L3
Compressor
Contactor
Liquid Line
Solenoid
Optional Alarm
Connection
Low
Pressure
Control
High
Pressure
Control
W1
W2
Temp.
Ctrl
12011012_10.cdr
Figure 10: Typical P545 Control Application with Liquid Line Solenoid Valve
6 P545 Series Electronic Lube Oil Control Product/Technical Bulletin