Operating Manual:
For all Controllers: RU9X part 1 (e), Additional Info
Installation Guide Interface: SSK, MBUS, CAN (german)

For each Controller individually:
Controllers for boiler: 98.1K-110(g), 98.1K-120(g), 98.1K-111(g), 96.1K-110(g), 96-1K-120(g), 94.1K-110(g), 86.1K-110(g)
Controllers for district heating: 98.1F-110(g), 98.1F-120(g), 96.1F-110 (e), 94.1F-110(g)
Controllers for heating/domestic hot water: 94.00-010(g), 94.00-100(g), 84.00-010(g)
Controllers for Ventilation: 98.L2(g), 96.L2(g), 98.L2U(g)
Controller for domestic hot water with heat exchanger: 98.1F-110U(g)
Controller for single room managementi: 98.ER(g)

System Manual: Contents, Operating System, Timer, Boiler Circuit, District Heating Circuit, Energy Manager, Heating Circuit, Domestic Hot Water Circuit, Trend, System Diagrams, Ventilation Circuit, Self Cleaning Funktion (all german)