
CoreSense™ Protection modules
for Copeland Scroll™ compressors
5 Year Warranty
Model # ESC1AFPT-CC-901
A superior replacement for most traditional AC and
heat pump compressor contactors
CoreSense™ Protection modules for single phase, residential air conditioning and heat pump systems combine the
functionality of a standard system contactor with compressor diagnostic and protection capabilities. Exclusively for
Copeland Scroll
commonly used in the field. Through built-in CoreSense technology this device will actively shut down the compressor
when critical system faults are detected. CoreSense Protection modules maintain the same wiring configuration as
a standard contactor and are easily installed in a condensing unit electrical panel. By using the compressor as a
sensor, the onboard diagnostics help the service technician more accurately troubleshoot system and compressor
fault conditions.
™
compressors, this innovative new product can be used to replace single and two-pole contactors

CoreSense™ Diagnostics + SureSwitch™ = CoreSense™ Protection
+
=
Model #
ESC1AFPT-CC-901
Benefits
• Actively shuts down the compressor when critical system
faults are detected
• Six diagnostic codes enable greater speed and accuracy of
troubleshooting
• Stores system and fault history for download
• Reduces callbacks and provides homeowner peace of mind
• Same wiring as traditional contactor
Features
• Microprocessor controlled sealed compressor switching
• Low line voltage protection
• LED displays status and fault conditions
• Heavy duty line voltage lug connectors
• Push-button test
• Zero chatter latching relay construction
• Similar mounting footprint as traditional contactors
• Two pin data port enables download of fault history
Performance tested
CoreSense Protection modules have undergone exhaustive
testing on Copeland Scroll compressors to demonstrate ultimate reliability of over 1 million cycles. This technology has
been utilized on OEM production controls since 2006 and is
now available for the aftermarket.
Terminal designations
24V: Y, C
208/240V: L1, L2, T1, T2
Specifications
Operating condition
--Operating temperature............ -40°C to 65°C
--Storage temperature................ -40°C to 80°C
Electrical rating
--Line voltage input............ 208-240 VAC at 50/60 Hz
--Full Load Amperes (FLA).............40 Amp maximum
--Locked Rotor Amperes (LRA)....180 Amp maximum
--Control (Coil) voltage (Y,C)........24 VAC at 50/60 Hz
Alert
code
Solid green Normal run N/A
Green flash 1 Long run N/A
Green flash 2 Compressor pressure trip Red flash 2
Green flash 3 Pressure switch cycling Red flash 3
Green flash 4 Locked rotor Red flash 4
Green flash 5 Compressor mod. run trip Red flash 5
Green flash 6 Low line voltage Red flash 6
Scan QR Code or visit
Alert
condition
Trip Solid red
indication
Lockout
EmersonClimate.com/CoreSense
2012ECT-8 R2 (11/13) Emerson, Copeland Scroll and CoreSense are trademarks of Emerson Electric Co. or one of its affiliated companies. ©2013 Emerson Climate Technologies, Inc. All rights reserved. Printed in the USA.
Recommended terminal torque values – L1, L2, T1, T2
#4 – 6 AWG.......................................45 in-lbs
#8 AWG............................................40 in-lbs
#10 – 14 AWG...................................35 in-lbs
Dimensions
2-3/4”W x 3-2/3”H x 3-3/4”L
Agency Approval
UL File #E253322
For universal contactor
replacement install
SureSwitch electronic
compressor control