Drayton Biflo 86 Pack
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Control pack for Mid-position (Biflo) heating installations, i.e. Using one 3-port Mid-Position motorised valve to control the flow of water between the heating and hot water circuits. LP522 5/2 Day Programmer RTS1 Room Thermostat HTS3 Cylinder Thermostat 22mm Mid Position Motorised Valve LWC1 Wiring Centre