bypass

[jambo]

unvented clyinder and system boiler hot water luke warm heating and hot water tapped in together as a bypass but no auto bypass fitted could this be the problem cheers

 

[oldplumber]

try sending a simple diagram jambo to allow people to see the set up, then things might be a bit clearer to comment on the system

 

[jambo]

ok sorry guys was at property today the original set up was every time they had the hot water on the radiators were coming on 2x 2 port motorised valves on the flow one for heating and one for hot water ie coil flow and return tapped in together via a 22mm tee 2 manual air vents at cylinder one on flow and one on return. what we have done replaced the bypass or tee with an auto bypass and two auto air vents on flow and return on cylinder motorised working as they should be but customer has just informed me that hot water ONLY has been on for ten mins but radiators are heating up we never put the system in thought it would be an easy fix but turning into a nightmare have to go back tomorow so any advice much needed cheers guys

 

[Rodreguez]

u checked the motorised valves?

 

[jambo]

they seem to be doing there job whey i call for either heating or hot water am completly foxed

 

[BLOD]

CH return could be tee'd in last on primary return to boiler ?

 

[fuzzy]

could be reverse flowing, is the cyl first tee on flow and last on return?