ASHP/Plumbing Quote Help Please

[canalsiderenovation]

@PeterW success, I've got the full schematic and I'm glad you mentioned the 4 points because, I'll quote "I'll be using Grundfoss Alpha 2 pumps, I've double checked the drawings, we will just be using 3 pumps as the U/F for the whole house is counted as one zone, from the low loss header. this would reduce cost by £139.80. I will be using a Honeywell 3 port valve".

 

Full schematic attached, any alarm bells let me know....

 

 

FTC6 Ecodan with 3rd Party Cylinder.pdf

Edited September 15, 2020 by canalsiderenovation

[PeterW]

That is the Mitsubishi standard design. Nothing that is bespoke for you ... 

 

Also missing the immersion connection - what is controlling it and does the ASHP need the immersion to hit its target temperature ..?

[canalsiderenovation]

3 hours ago, PeterW said:

That is the Mitsubishi standard design. Nothing that is bespoke for you ... 

 

Also missing the immersion connection - what is controlling it and does the ASHP need the immersion to hit its target temperature ..?

 

This is so incredibly frustrating. The plumber is putting pressure on us to order eveything tomorrow but I've no idea if what he is quoting fits with what we have ordered works with the solar. Perhaps he has sent the wrong schematic.

[PeterW]

as long as he thinks it will all work then that should be fine. 
 

Alpha 2 are latest generation pumps so should hopefully be as quiet as the Wilo ones. 

[Alexphd1]

Dont be pressurised into ordering anything until you are happy. 

[canalsiderenovation]

36 minutes ago, Alexphd1 said:

Dont be pressurised into ordering anything until you are happy. 

Easier said than done ???