The control unit manages the electronic operation of the heater and is designed specifically for compatible 24V Hydronic applications.

Part 225202011001 is also formatted as Eberspächer part number 22.5202.01.1001.

This control unit is identified for Hydronic D5WS and D5WSC 24V heaters, including heater types 25.2146.05.0000, 25.2147.05.0000 and 25.2218.05.0000.

The ECU is described as a waterproof 24V control unit and is supplied with installation instructions.

Because multiple Hydronic D5 configurations exist, confirm the complete heater identification number, voltage and existing ECU number before ordering.

Key Features

• Replacement electronic control unit
• 24V electrical configuration
• Designed for Hydronic D5 coolant heaters
• Compatible with specified D5WS heaters
• Compatible with specified D5WSC heaters
• Waterproof ECU design
• Genuine Eberspächer/ESPAR replacement component
• Supplied with installation instructions

Specifications

• Part Number: 225202011001
• Formatted Eberspächer Number: 22.5202.01.1001
• Alternate Format: 22 5202 01 10 01
• Product Type: Electronic control unit / ECU
• Voltage: 24V
• Heater Family: Hydronic D5
• Compatible Models: D5WS and D5WSC
• Construction: Waterproof control unit
• Brand: Eberspächer/ESPAR
• Condition: New replacement part
• Unit of Measure: Each

Compatible Eberspächer/ESPAR Heaters

Part 225202011001 is identified for compatible 24V heaters including:

• Hydronic D5WS
• Hydronic D5WSC
• 25.2146.05.0000
• 25.2147.05.0000
• 25.2218.05.0000

Compatibility should be confirmed using the complete heater identification number before ordering.

This is a 24V control unit and should not be substituted for the 12V 225201040011 control unit.

Common Service Applications

This control unit may be required when:

• Replacing a failed Hydronic D5WS ECU
• Replacing a failed Hydronic D5WSC ECU
• Repairing a compatible 24V Hydronic heater
• Replacing a physically damaged control unit
• Completing a comprehensive Hydronic D5 repair

Always properly diagnose the heater before replacing the control unit.

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