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In that case can i manually set flow temperature to 50C as i don't like that way. My last boiler (over 10 year old) and CM907 heat up to set flow temperature. This one not.

I had new boiler fitted. Unfortunately it come with ST9100A as a programmer but it have only 2 daily programs and Honeywell Wireless Room Thermostat Y6630D1007. So you can only set one temperature for all day. As thermostat is wireless i replace Y6630D1007 for cm927. Simply turn ST9100A for...