Resources for installers

Optimino keys and external heat source compatibility resources


Optimino key part numbers

Energy Source – Heat pumps

Compatible heat pump brandsOptimino key part number
Daikin Altherma 3HHT R32 seriesDN01

Relevant wiring instructions for all listed external heat resources in this manual (coming soon). Thermino xPlus in back-up electric mode technical note coming soon.


Due to restrictions in refrigerant regulations in North America, we are only compatible with the above listed heat sources. We expect new heat pumps to be added to the list in the near future.


Energy Source – Boiler

Heat sourceOptimino key part number
BoilerVF01