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Hi,Pisasso,please can you explain what a 2 port blocker is,thanks Gle

Hi,honeywell mid position valve supplies dhw and rads,ufh is run off a manifold comprising,manual mixing valve,pump.Stat in conservatory is 240v and controls pump.I have a 2port zone valve to be fitted to manifold next to pump.rcd works ok with existing y plan system and ufh system works ok with...

can anyone tell me how to allow my underfloor heating stat to fire my boiler.I have a 24v Broag heating boiler which is controlled by a switched live from my Honeywell y plan system.I connected another switched live from my conservatory ufh stat and the rcd protecting the boiler tripped out.I...

Hi namsag,sorry to have mislead you.The pump was not running when the system was banging but would start up and stop the banging.When checking with my multimeter i would get a intermitant reading from the cable suplying the pump.By the time i got downstairs to check the boiler wiring it was...

my myson,which is 21yrs old is making a loud banging noise when it is fully hot.i have changed the 3way valve and pump.when it banged again i checked the pump and found that it was not running,although there was 240v to it.the room stat,cylinder stat were made,also the boiler was running.i...