Bosch FW200 Boiler Control Question

[John Molyneux]

Does anybody on the board have any advice or preference as to whether the FW200 on my new Bosch Greenstar boiler should be installed on the boiler or be wall-mounted and used as a room sensor/thermostat? I'm using a Bosch-certified installer but they've never used it in a wall mount application. Plus, I'm not sure from reading the literature whether the wall mount capability only applies when you're running a single zone system. I'm driving two zones.

Thanks in advance.