Aqualisa Quartz Gravity Pumped QZD.A2.EV.14 Shower

[Jim Goodenough]

I have a customer who wants an unvented HWS, they have a Aqualisa Quartz Gravity Pumped QZD.A2.EV.14 Shower which has a max pressure of 1 bar.

My question is if I fitted PRV's set at 1 bar, on both H & C services to the shower pump once the UVHWS system is installed, would this be sufficient for the shower to operate normally?

MTIA

 

[ShaunCorbs]

Nope time for a new shower if they don't do the high pressure box / control unit

 

[Jim Goodenough]

I mean fit the PRV's on the supplies to the shower pump? Surely this will work.

 

[ShaunCorbs]

I mean fit the PRV's on the supplies to the shower pump? Surely this will work.

no as there not designed to work on mains as there pumped

 

[Welder]

+1 for Shaun. I've even tried it!

 

[Jim Goodenough]

FYI, I've contacted Aqualisa and they say I need "our mains compatible HP processor valve which will be half the size of your existing. They can take up to 7 bar of working pressure and are available at a cost of £302.99 including VAT, plus £2.95 for the postage and packaging"