Recent content by PMH

I will try that tomorrow. I am still wondering whether the proportional pressure control on my Grundfos UPE-15-60 pump is making life difficult whilst there is air in the system. The manual says - The pump differential pressure does not remain constant, but reduces as the system flow...

Thanks for your time Chris - I managed to find the site address for the pump - http://www.grundfos.com/web/homeuk.nsf/Webopslag/24508BE21566230180256887004D6CF5 Since my original post to you, I adjusted the pump speed to maximum. Closed all rads leaving the furthest one away open. This...

CH system problem – part system heats okay – one section has no return flow. Boiler – Potterton Suprima 80L Pump – Grundfos UPE 15-60 [set on proportional pressure HW - Fully Pumped and always okay CH - Flow/Return T’s off at a point where:- Section one – 22mm pipes run down...