For setting one, two or up to three heating circuits:
If the Vitotrol 300A is used for room temperature hook-up, site the device in a main living room (lead room). Order room temperature sensor, part no. 7438537, if the Vitotrol 300A cannot be sited in a suitable location to capture the room temperature.
Max. 2 Vitotrol per Vitotronic.
Fits: Vitodens 200-W Vitotronic 200 Vitodens 222-F Vitotronic 200 Vitodens 242-F Vitorondens 200-T
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