I've just bought a Drayton rts 1 stat for my glow worm betacom 30c boiler. Problem is, after following the instructions in the boiler manual I can't get the stat to work. Boiler manual States to cut the bridge wire at (x20) (230v connection) and add a connector block. The two wires now are point 49 and point 50. From here it states to run the live from point 50 to the live on the stat which is how far I've got but the stat doesn't work. Where on the boiler pub does the neutral go from the stat and the open/close port which are left unfilled.