User Guide

Technical Specifications
Product
P545NCB Electronic Lube Oil Control; manual reset with alarm and liquid line solenoid
outputs
Power Requirements
120 or 240 VAC, 50/60 Hz +10%, -15%; power consumption: 3 VA
Open Point
(Differential Pressure)
P545NCB-22/P400AD-2: 12.75 ± 0.75 psid (87.9 ± 5.17 kPa)
P545NCB-25/P400BD-1: 10 ± 1.5 psid (68.9 ± 10.3 kPa)
P545NCB-82 P400AD-1: 7 ± 1.0 psid (48.2 ± 6.9 kPa)
Lube Oil Time Delay
(Factory Settings)
P545NCB-22: 120 ± 15 seconds
P545NCB-25: 90 ± 12 seconds
P545NCB-82: 120 ± 15 seconds
Anti-short Cycle Timer
Four selectable positions: 0, 35, 65, and 100 seconds (nominal times)
Type of Refrigerant
Non-corrosive refrigerants only
Electrical Connections
Control: Screw type terminals on a barrier terminal strip
Sensor: Snap-connect at sensor end, 3-pin plug at control end
Maximum Electrical Rating
Isolated relay output to compressor contactor (M-1 and M-2)
Pilot duty 375 VA at 120 VAC, 750 VA at 240 VAC
Alarm Circuit (Relay)
NOA contact: Pilot duty 125 VA at 120/240 VAC; 60 W tungsten at 120/240 VAC
NCA contact: Pilot duty 125 VA at 120 VAC, 250 VA at 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)
Approximate Shipping
Weight
1.80 lb (0.82 kg)
Agency Listings
UL Listed, File SA516, CCN SDFY
UL Listed for Canada, File SA516, CCN SDFY7
The performance specifications are nominal and conform to acceptable industry standards. For application at conditions beyond these
specifications, consult the local Johnson Controls office or Johnson Controls/PENN Application Engineering at [phone] or
1-800-275-5676 (1-800-ASK-JNSN). Johnson Controls, Inc. shall not be liable for damages resulting from misapplication or misuse of its
products.
Controls Group
507 E. Michigan Street
P.O. Box 423 Published in U.S.A.
Milwaukee, WI 53201
www.johnsoncontrols.com
12 P545 Series Electronic Lube Oil Control Product/Technical Bulletin