M
morrismini
http://www.grundfos.com/web/homeuk.nsf/Webopslag/DMAR-5UTLDA
pdf instructions and specifications on site.
http://www.grundfos.com/web/homeuk....fa180256e0f00563537/$FILE/UPA 15-90 05 03.pdf
This pump is around £112 to buy.
http://www.plumbnation.co.uk/site/grundfos-upa-15-90-home-booster-pump/
I was thinking of using it on a DHW secondary circulation loop. The idea was that flow would be detected when a tap is open. The pump switches on, via the internal flow switch, and takes water from a cylinder around the loop back to the cylinder. This would reduce the dead-leg time considerably and it only turns when a tap is turned on. Hot water would fill the loop pipe quickly. It switches when the flow is 2 litres per minute. small tap turn ons will not turn it on.
The pump can be switched like a normal pump if need be with the flow switch by-passed.
Has anyone any experience of this pump. It is cheaper than the Comfort range. The comfort range has integral stat, check valve and timer, so is more expensive. This Home booster seem to fit the bill just using the internal flow switch. If no tap is on no hot water runs around the loop. When the tap is on water is pumped to the tap very quickly.
pdf instructions and specifications on site.
http://www.grundfos.com/web/homeuk....fa180256e0f00563537/$FILE/UPA 15-90 05 03.pdf
This pump is around £112 to buy.
http://www.plumbnation.co.uk/site/grundfos-upa-15-90-home-booster-pump/
I was thinking of using it on a DHW secondary circulation loop. The idea was that flow would be detected when a tap is open. The pump switches on, via the internal flow switch, and takes water from a cylinder around the loop back to the cylinder. This would reduce the dead-leg time considerably and it only turns when a tap is turned on. Hot water would fill the loop pipe quickly. It switches when the flow is 2 litres per minute. small tap turn ons will not turn it on.
The pump can be switched like a normal pump if need be with the flow switch by-passed.
Has anyone any experience of this pump. It is cheaper than the Comfort range. The comfort range has integral stat, check valve and timer, so is more expensive. This Home booster seem to fit the bill just using the internal flow switch. If no tap is on no hot water runs around the loop. When the tap is on water is pumped to the tap very quickly.