Chiller plumbing??

[chefjpaul]

Hey all.

I am plumbing my new build.

I already built my return manifold, but did it with 1/2" valves down from the 3/4" return line.

I will probably need to add a new chiller, and missed the fact they run 3/4".
(Totally missed that equipment part)[emoji34]

Would it be ok to restrict the inlet water line from the sump 1/2" then go back- to 3/4".
And leave the chiller return outlet water line at 3/4", not affecting the performance?

I don't want to redo the manifold, but will if its issue, or add another valve from the main 3/4" line.

Thanks.

 

[Tony727]

It will be fine as long as you get the minimum flow rate through it.

 

[Macdaddynick1]

generally shouldn't be a problem . Just thinking of the physics of it, your chiller is removing heat from the water at a set rate. Now if you run 3/4" full blast 100gph , the chiller will drop the outgoing water temperature by 30% From 10C to 7C . Now if you restrict the water flow to 50 gph your chiller has much more contact time with water , so it will drop the outgoing water temperature by 60% from 10C to 4C . The numbers are hypothetical but you get the point, as long as you run at least minimum suggested flow through the chiller and as long as your tank is not too big for the chiller you should be fine. IMO

 

[chefjpaul]

Thanks.

Little panic on the planning.

 

[maroun.c]

Whats the recommended flow through your chiller? most probably 1/2 input will be fine as it's pressurized anyway, might need to step down the output of the pump possibly but that's just one plumbing part to add...

 

[chefjpaul]

Whats the recommended flow through your chiller? most probably 1/2 input will be fine as it's pressurized anyway, might need to step down the output of the pump possibly but that's just one plumbing part to add...

Yeah, it will be off a manifold from a vectra.

Just over thinking this too much

 

[Dumaurier7]

The size of the plumbing is determined by the size of the chiller and the required flow , all you need to do is maintain the size of the fitting supplied with it. I have a 1/2 HP which came with 3/4" fittings so I used the same size PVC, the DT temperature is consistent @ 27*C and the unit hardly runs !