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Defrost Controller, 47D Series, Universal Heat Pumps, 24 Vac, -40°F to 150°F


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Newark Part No.:
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Technical Datasheet:
47D01U-843   Datasheet
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Technical Documents (2)

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CAD Models and drawings are provided to you on a revocable limited licence for your internal use only but remain the property of the manufacturer who retain all intellectual property rights and ownership. They are provided to assist you in decision making and as design guide but are not guaranteed to be error free, accurate or up to date and is not intended to be taken as advice.
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Product Overview

47D01U -843 universal heat pump defrost control is the first microprocessor -based universal replacement defrost controller intended for single stage heat pump systems. Universal single stage heat pump defrost control for PSC replaces most single stage defrost controls offering enhanced energy efficiency through demand or time temp defrost modes and provides compressor protection through short cycle time delay and brownout protection.
  • Replaces over 400 single stage defrost models
  • Selectable timed defrost or demand defrost mode for greater efficiency
  • Reversing valve can be energized in heat or cool (O/B)
  • One button configuration to any OEM system
  • Integrated outdoor thermostat eliminates need for additional components
  • Access set up and diagnostic menus from any orientation
  • Brown out and short cycle protection


Universal heat pump defrost control (includes universal plastic mounting tray+ 4 screws), Thermostat harness, Heat pump harness, Thermistors, Zip ties, Terminal wire stickers, Setup and troubleshooting label.

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