Reconditioned 

• Reconditioned for like-new performance at a more affordable cost

The DHP‑H is Danfoss’s control/computer module used in the DHP‑H family of air‑to‑water heat pumps (including Opti and Opti Pro variants). It manages compressor operation, fans, pumps, sensors, hot‑water control and user interface functions for the unit, and is described in the official installation, service and maintenance documentation.

Key functions and features
•     Controls compressor start/stop and protections, defrost cycles, and refrigerant‑circuit safety functions.
•     Manages domestic hot water charging and temperature regulation (including extra/hot water modes on Opti/Opti Pro variants).
•     Interfaces with multiple sensors (supply, return, outdoor, tank) and external devices such as circulation pumps and expansion valves.
Technical and wiring information
•     The manuals provide wiring diagrams, connector pinouts, and terminal assignments for power, sensors, pumps, fans and auxiliary inputs/outputs; follow the wiring diagrams exactly when replacing or servicing the control module.
•     The datasheet and technical pages list dimensions, electrical data, required space clearances, and sensor types used by the system.
•     Always isolate mains power before servicing and verify correct earthing and protective devices as specified in the installation instructions.

Compatibility and models
•     The control module is specific to Thermia Diplomat DHP‑H family units and their Opti/Opti Pro variants; versions and connector layouts can differ by model and production year, so confirm the exact DHP‑H variant in your unit against the documentation before ordering a replacement module.

Troubleshooting and service guidance
•     The maintenance and service manual describes fault diagnostics, menu navigation for reading alarms and sensor values, routine checks and recommended replacement procedures.
•     If replacing the module after an electrical fault, inspect related components (fuses, contactors, sensors, compressor protection) to avoid immediate recurrence of failure.