Emerson Coresense Diagnostics Bulletin

For copeland scroll air conditioning compressors
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AE8-1379 R2
for Copeland Scroll
Section
Introduction ................................................................................................. 4
CoreSense Diagnostics Part Numbers ........................................................ 4
Application Restrictions and Types .............................................................. 4
Product Specifications ................................................................................. 4
Installation ................................................................................................... 4
Terminal Description ................................................................................... 4
Compressor Protection ................................................................................ 5
Module LED Description .............................................................................. 5
Module Operation/Code Description ............................................................ 5
Resetting Alert codes .................................................................................. 5
Module History Download............................................................................ 6
Warranty Information ................................................................................... 6
Support ....................................................................................................... 6
Figures and Tables
Two-Wire Diagram - Typical Cooling Application...................................... 7
Three-Wire Diagram - Typical Cooling Application ................................... 7
Module Dimensions ................................................................................. 8
Quick Reference Table ............................................................................ 9
© 2015 Emerson Climate Technologies
CoreSense
Diagnostics
Air Conditioning Compressors

TABLE OF CONTENTS

1
February 2015
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  Summary of Contents for Emerson Coresense Diagnostics

  • Page 1: Table Of Contents

    Two-Wire Diagram - Typical Cooling Application........7 Three-Wire Diagram - Typical Heat Pump Application ......7 Three-Wire Diagram - Typical Cooling Application ........7 Module Dimensions ................. 8 Quick Reference Table ................9 CoreSense Diagnostics LED Troubleshooting Information ...... 10 © 2015 Emerson Climate Technologies...
  • Page 2 NOTICE NOTICE is used to address practices not related to personal injury. CAUTION, without the safety alert symbol, is used to address practices CAUTION not related to personal injury. © 2015 Emerson Climate Technologies...
  • Page 3 • Refrigerant compressors must be employed only for their intended use. • install, commission and maintain this equipment. • • All valid standards and codes for installing, servicing, and maintaining electrical and refrigeration equipment must be observed. © 2015 Emerson Climate Technologies...
  • Page 4: Introduction

    ZP*K5 and ZR*K5 single- ™ phase Copeland Scroll fixed speed compressors. Terminal Description CoreSense Diagnostics is not designed for use with ™ Copeland Scroll Variable Speed or Ultratech branded The terminals for the CoreSense Diagnostics module scroll compressors.
  • Page 5: Compressor Protection

    Resetting Alert Codes Code 2 - Compressor (Pressure) Trips When the CoreSense Diagnostics module has detected The module will flash yellow two times when the a series of adverse conditions that have caused it to compressor operates from 12 seconds to 15 minutes ©...
  • Page 6: Module History Download

    The contents of this publication are presented for informational purposes only and they are not to be construed as warranties or guarantees, express or implied, regarding the products or services described herein or their use or applicability. Emerson Climate Technologies, Inc. reserves the right to modify the designs or specifications of such products at any time without notice.
  • Page 7: Two-Wire Diagram - Typical Cooling Application

    Figure 1 571-0066-00 Two-Wire Diagram HPCO LPCO Defrost Board Contactor Coil PROT Indoor Unit CoreSense Module Figure 2 571-0067-00 Three-Wire Diagram Contactor Coil HPCO LPCO PROT Indoor Unit CoreSense Module Figure 3 571-0067-00 Three-Wire Diagram © 2015 Emerson Climate Technologies...
  • Page 8: Module Dimensions

    Sensor Opening Reset Bu on Yellow LED Red LED PROT Data Port Y (3 Wire Only) (Not Present on 2 Wire) R (3 Wire Only) Y (2 Wire Only) Figure 4 Dimensions are in Millimeters © 2015 Emerson Climate Technologies...
  • Page 9: Quick Reference Table

    Yellow: Off Code9 Red: Flash 9 Current >2A The current to the PROT terminal is greater than 2A for 40ms Red Flash 9 Yellow: Off Trip Demand is present, but compressor is not running Solid Red © 2015 Emerson Climate Technologies...
  • Page 10: Coresense Diagnostics Led Troubleshooting Information

    AE8-1379 R2 Table 2 CoreSense Diagnostics LED Troubleshooting Information Flash Code number corresponds to the number of LED flashes, followed by a pause and then repeated. TRIP and ALERT LEDs flashing at same time means control circuit voltage is too low for operation.
  • Page 11 2. Faulty metering device events • Check TXV bulb installation (size, location and contact) • Check if TXV/fixed orifice is stuck closed or defective 3. Condenser coil poor air circulation (dirty, blocked, damaged) 4. Low refrigerant charge © 2015 Emerson Climate Technologies...

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571-0066-00571-0067-00971-0066-00971-0067-00