The Rego 600 encoder card (internal card) is a spare part used inside IVT/Bosch Rego 600 controllers to handle sensor and signal processing for heat pumps. It is sometimes referred to as the internal sensor card or donor card and is essential for connecting temperature sensors and managing communication between the Rego 600 control unit and the heat pump’s subsystems.

Key Details:
•     Component type: Internal encoder/sensor card for Rego 600 controller
•     Function: Interfaces with multiple sensors (temperature, brine, condenser, hot water tank, outdoor, indoor) and encodes their signals for the Rego 600 main PCB
•     Part number: Often listed as 87183000960

Compatibility:
The Rego 600 encoder card is compatible with a wide range of IVT Greenline and Optima models, including:
•     IVT Greenline C-series: C4, C5, C7, C9
•     IVT Greenline HT / HT Plus series: C6, C7, C9, E6, E7, E9, E11, E14, E17
•     IVT Optima series: Optima 1000 Rego 603, Optima 1300 Rego 603
•     IVT Greenline D/E series: D/E 5, D/E 7, D/E 9, D/E 11, D/E 14, D/E 16

Internal Role:
The encoder card works alongside the Rego 600 PCB and Rego Box 600:
•     Signal encoding: Converts raw sensor data into usable signals for the controller.
•     Temperature monitoring: Handles inputs from radiator return, forward feed, brine in/out, condenser, hot gas, and warm water tank sensors.
•     System regulation: Ensures the Rego 600 can correctly manage heating, cooling, and hot water production.