Thermia I/O Card 086U9239

Reconditioned input/output control board for the compatible Thermia and Danfoss heat pumps listed below.

Product Details

• Part number: 086U9239, also referenced as I/O HP Card 911 934
• Product type: I/O interface control board / PCB
• Function: Acts as the input/output interface between the heat pump controller and the system's sensors, pumps, valves and other components, switching outputs through its on-board relays and passing sensor readings back to the controller. A failed card typically shows up as I/O errors or communication faults
• Construction: Green PCB with screw terminal blocks, nine relays, transformer and multi-pin connector headers
• Condition: Reconditioned
• Brand: Thermia

Compatibility

• Thermia Atec series, 2011 to 2022
• Danfoss DHP-AQ, 6 kW to 18 kW

Compatibility is limited to specific Thermia and Danfoss units, so check the board markings, connector arrangement and part number against the existing card before ordering. Fitting involves mains connections and system calibration, so it should be carried out by a qualified technician.