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    P545 Series Electronic Lube Oil Control Product/Technical Bulletin 

Table 5: Wiring Harnesses and Other Accessories Ordering Information 

Product Code 

Number 

Description 

KITP545-82C 

CST29A-600C Sensor Block 

(for Carlyle Compressor Series O6CC, O6D, and O6E); 

includes Allen-head bolts*. 

P545NCB-82 Electronic Lube Oil Control

includes P400AD-1C switch and WHA-P400-100C wire harness 

WHA-P400-100C 

3 1/3 ft (1 m) length wiring harness 

WHA-P400-125C 

4 ft (1 1/4 m) length wiring harness 

WHA-P400-250C 

8 ft (2 1/2 m) length wiring harness 

WHA-P400-430C 

14 ft (4 1/3 m) length wiring harness 

R310AD-1C 

Low-Voltage Current Sensing Switch 

271-51 

Universal Mounting Bracket 

*  Contact Carlyle Compressor Co. at (800) 462-2759 to order Sensor Block Gasket 06DA680063. 

 

Repair and Replacement 

Do not attempt field repairs or calibration. Switches, 

alternate length wiring harnesses, and replacement 

controls are available as separate items through local 

Johnson Controls wholesalers and the original 

equipment manufacturer. 

 

Summary of Contents for P545 Series

Page 1: ...P545 Electronic Lube Oil Control with P400 Single Point Oil Pressure Differential Switch Features and Benefits Single Pole Double Throw SPDT Relay Contacts for Liquid Line Solenoid and Alarm Applicati...

Page 2: ...ow LED On Compressor contacts close LLS contacts remain closed and alarm remains open green LED On yellow LED On Is the net lube oil pressure sufficient Timer counts down yellow LED Off Green and yell...

Page 3: ...oil pressure is below opening point If the oil pressure is above opening point more than it is below opening point the control does not shut down the compressor If the oil pressure drops continuously...

Page 4: ...the P545 control and the P400 switch 2 When the P445 control is wired to a P400 switch The Test button may operate when first powered up however after a couple minutes of operation the Test Switch fun...

Page 5: ...surfaces of gasket and compressor housing meet 5 Use a torque wrench to tighten the sensor until sealed 40 lb ft recommended torque Wiring See Figure 7 through Figure 12 for typical wiring diagrams o...

Page 6: ...r Diagrams for the P545 Control M1 M2 L2 120 240 P545 NCA NOA CMA L1 L2 L3 Compressor Contactor Wire Jumper Low Pressure Control High Pressure Control Alarm Connection 12011012_8 cdr Figure 8 Typical...

Page 7: ...L3 Compressor Contactor Optional Alarm Connection Low Pressure Control High Pressure Control W1 W2 Remove resistor R39 when using the R310AD switch R39 Power for Alarm Circuit R310AD Switch 12011012_...

Page 8: ...mpressor contactor is energized but the lube oil pressure is below the opening point Timing circuit is active Yellow TIMING LED only Power to the control has been interrupted and restored before the a...

Page 9: ...e supply voltage Reconnect the compressor leads to the contactor or reset the disconnect If an R310AD switch is used reconnect the compressor leads to the contactor See Figure 13 6 Re energize the sup...

Page 10: ...the P400 switch 2 Use a single piece of 22 gauge wire as a jumper between the common and signal terminals of the wiring harness 3 Press RESET 4 If the green LED lights and the yellow LED turns off rep...

Page 11: ...k compressor for internal overloads 2 Check the compressor wiring 3 Check compressor s contactor 4 Check compressor for general failure Ordering Information Use the following tables to order the P545...

Page 12: ...3 ft 1 m length wiring harness WHA P400 125C 4 ft 1 1 4 m length wiring harness WHA P400 250C 8 ft 2 1 2 m length wiring harness WHA P400 430C 14 ft 4 1 3 m length wiring harness R310AD 1C Low Voltage...

Page 13: ...240 VAC Backplate Material Case and Cover Material Cold rolled steel High impact thermoplastic Ambient Operating Conditions 40 to 131 F 40 to 55 C Ambient Storage Conditions 40 to 185 F 40 to 85 C App...

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