Honeywell CM907 wiring (upgrade from honeywell T40)

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Oxfordshire
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United Kingdom
I am upgrading from a honeywell t40 to a honeywell cm907 but am confused by the wiring. On the t40 I have

Brown wire in terminal numbered 1
Black wire sleeved with brown in terminal 3
Grey wire sleeved blue in terminal 2

How are these wired into terminal a, b and c on the 907?

I have a Worcester heatslave combi boiler

Many thanks for any advice

Found the answer here
//www.diynot.com/forums/viewtopic.php?p=2183167#2183167
Should have looked harder earlier :oops:
 
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