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Smart Defrost Kit
H-IM-SDK
March 2019
Part No. 25004001
Replaces H-IM-79G (08/17)
Installation and
Operation Manual
Table of Contents
Warranty & Safety Information ....................................................... 2
Summary ....................................................................................... 3
System Requirements. ................................................................... 3
Technical Information ..................................................................... 3
Installation.. ................................................................................... 4
System Operation .......................................................................... 5
Parts List........................................................................................ 6
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Table of Contents
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Summary of Contents for Heatcraft H-IM-SDK
- Page 1 Smart Defrost Kit H-IM-SDK March 2019 Part No. 25004001 Replaces H-IM-79G (08/17) Installation and Operation Manual Table of Contents Warranty & Safety Information ............2 Summary ..................3 System Requirements..............3 Technical Information ..............3 Installation..................4 System Operation ................5...
- Page 2 SELLER’s or without written factory approval. manufacturer’s recommendations, or if the serial number has been (f) All equipment is installed in accordance with Heatcraft altered, defaced, or removed. Refrigeration Products specified minimum clearances.
- Page 3 System Requirements Smart Defrost Kit (SDK) Summary Technical Information The condensing unit control panel contains the relays, contactors, • Dimensions time delay and a terminal block which is appropriately marked to • Operational Temperature Range: -40F to +130F match the low voltage wiring connections. A sensor for outdoor air •...
- Page 4 Installation Field Installation (If not factory installed) 1. Turn off power to the refrigeration system 2. Mount the SDK control module to the condensing unit electrical panel 3. Connect four wires to the defrost timer and two wires to the compressor contactor (6 wires in total) 4.
- Page 5 System Operation System Operation 1. Following power-up, the STATUS LED will alternate colors between Green and Yellow at a 0.5 second rate to indicate the SDK is synchronizing itself with the refrigeration system. This pattern is maintained until a termination of defrost is observed. The LED color then changes to yellow.
- Page 6 Parts Service Parts List Smart Defrost Replacement Kit 59819901 Smart Defrost Controller 28999301 SDK Mount 33699701 Pressure Transducer 28911202 Pressure Transducer Harness 22515102 Temperature Sensor 28900311...
- Page 7 Notes:...
- Page 8 Heatcraft Refrigeration Products, LLC 2175 West Park Place Blvd., Stone Mountain, GA 30087 www.heatcraftrpd.com Customer Service and Technical Support Normal Business Hours – 8:00 AM – 8:00 PM EDT (800) 321-1881 After Hours (after 5:00 PM EDT, weekends and holidays)
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