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yes i was just thinking that as it seems a lot more complicated with the relays it would be simple to move the 1 pump to the attic but if i was to get the 3 relays the orange wire goes in and the boiler and pump go in as well??

picasso would i be right in thinking that you wire one pump and switched live into one side and on the other side you connect the other pump and the 2 s/l

picasso the wiring center has 12 connections so the boiler and pump live go into number 12 with 2 orange wire's from 2 of the valves so would i be able to add on say a number 13 connection and connect live boiler and orange from 3rd valve, or if that still causes backfeed could you give me any...

picasso when you say i need to adapt it does it mean that the hw and htg for main house go like this that the orange wire on 2 of the zone valves go to 1 pump and the orange wire from the 3rd zone valve go to the pump for the conservatry

so picasso the tee in the attic for the conservatery is that working in parallel to the other 2 zones that would be off their own tee's just unsure about the wording from kevingas Also the zone package i'm getting is the horstmann h37xl which comes with it's own wiring center Is there any...

the intention i have is to have the zone valve and pump in the attic for the conservatory and where the pump is in the hotpress is to add 2 zones i for hw and i for htg of main house does that sound about right also would that mean that both the pumps would be working in series thanks

There are no zone valves at the moment I will be fitting them in another month or so

Was'nt sure if i needed 2 pumps or 1 as the main pump is in the hotpress and if i was to tee in after the main pump i would have to run back up into the attic and across about 8 meters and then drop down. Where as i was thinking of branching into the main flow in the attic before the the 1st...

Can anyone tell me if this should work??. I have the flow in the attic of a bungalow and that drop's down to the hotpress where there is a wilo pump. After this pump there is a tee with 1 pipe going to cylinder and the other going to the primary heating in the floor. What i was thinking of...

Got it sorted !! There is a 312 connection on the flow of the cylinder that was leaking just enough for the air to escape but no water. thank's

I have pressure tested system with air upto 2.7bar over 12 hours and it has dropped by 1 bar in that time. There is no water leaking from system at all and all rad valves are new and all joints have been tested with soapy water. The boiler and hwc were both isolated from system when doing...

Thanks for reply. prv not letting , aav closed , all aladdin air bleed vents on rads only open at 70 degrees no liquid coming out of them All pipe work is accessible The ev was just checked and is charged to m.i. The only thing i can think of trying now is adding some cheap aftershave to...

Could anyone give a reason why the system is losing pressure. It is an oil fired cooker which can either be used on sealed or open vented system as stated by m.i. The system was originally open vented and is now converted to sealed. There are 14 rads of various sizes 4 of which have new trv...