RWBXP Programmers plus Potterton Miniminder and Gloworm Mastermind. Zone Valve System When the RWB2 is used as a direct replacement no re-wiring is necessary, (except in the case of the RWB2 BACKPLATE RWB20 when a neutral will be required, if one is not present).
Push the bottom of the case towards the wall, slotting the two backplate screws into the bottom of the case, and tighten the screws.This enables the contacts in the unit to engage with those in the backplate. INSTALLATION AND USER INSTRUCTIONS - RWB2 PAGE 2...
NB: If the RWB2 has been set for a 10 position, i.e. For installation see enclosed instructions. gravity hot water, pressing the override will also bring on the hot water circuit.
Changing the ON/OFF Times To set tappets to your own programme times hold The RWB2 is supplied with factory settings (See the dial and slide the relevant tappet and rotate it in Factory Settings) which will operate unless you either direction to your desired time, then rotate dial change the set times.