Heat pump plumbing ....

[fatcat07]

Hello All,

Quick question, when I plumb in my heat pump into the filter/pump system how important is a bypass value for the heat pump ?

Thanks

 

[toofast]

Well I think it depends on your MFG - mine did not require one and I do not have one and it works perfectly.

I think some do it just because if there is an issue it allows you to eliminate the HP.

If I had to do it over, I MIGHT think about it, but quite frankly if my HP blows up and leaks, I have unions that will allow me to quickly re-plumb.

 

[suzook]

I put a bypass in, probably not necessary, but why wouldn't you do it?

 

[fatcat07]

I put a bypass in, probably not necessary, but why wouldn't you do it?

lol .... The price, when I priced it out with the bypass value it added about $300.00 .....

So I was just wondering if it was worth it ....

 

[bk406]

A bypass valve on a heat pump, or any heater for that matter, is generally only needed if the water flow (i.e. GPM) are too high and exceed the rating for the heater. That only is needed if the flow rate is over 80 GPM or so.
A plumbed bypass with PVC and a couple of valves would probably accomplish the same thing. Unless you would want to take the heater offline or the flow rate is too high, you dont really need one. If you didnt have one and the heater needed repairs, you couldnt run the system with the heater out of the loop, however.

 

[suzook]

lol .... The price, when I priced it out with the bypass value it added about $300.00 .....

So I was just wondering if it was worth it ....

OUCH! I made a bypass with a shutoff valve teed in. About $12.

 

[n240sxguy]

OUCH! I made a bypass with a shutoff valve teed in. About $12.

I can't imagine what they were doing that would be worth $300. It's 3 ball valves, 2 T's, and less than a foot of pipe.


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[fatcat07]

I can't imagine what they were doing that would be worth $300. It's 3 ball valves, 2 T's, and less than a foot of pipe.


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From what the pool guy explained the piping involved in a bypass value is expensive ???


You know at this point between my skimmers pipes collapsing and me trying to fix them myself .....

Regrading my yard with 13 yards of top soil .....

Spreading 7 yards of mulch ....

I just really want my pool to be ready already ....

Time is my biggest enemy, I will have the pool guy install the bypass value, it seems a little expensive but a person who works with me said they wish they would have installed one.

My mantra, "Hot/Warm water by Memorial Day" is in jeopardy. Time to bite the bullet and pay to "Get ER done"

 

[n240sxguy]

The ones I've seen look like this.

If you are familiar at all with pvc, you could do it yourself after they install the heater, and save the $300 for other stuff.


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[n240sxguy]

If you use the cheaper valves like in the pics you might spend $40-50. Good valves would get you up to $140-150.


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[suzook]

I hear you about getting the pool done. I was swimming on mothers day in 80 degree water. Don't worry, you will get there.

 

[fatcat07]

Hello all,

I have gotten in my head that the pool chemicals will have an adverse affect on my new heat pump, and that came form all the research I did before buying the heat pump. So my thinking is only run water through the heat pump when it is needed and when the chemicals are at acceptable levels.

Is the chemical portion of my thinking valid ? will a poorly chemically balanced pool mess up your heat pump ?

Thanks

 

[bk406]

Naw, you're overthinking it.

 

[fatcat07]

Naw, you're overthinking it.

LOL .... thanks for the reality check bk406 ...:calm:

 

[ps0303]

Use a check valve on the return side instead of a valve. It will allow for the water to drain out of the heater so it has no pressure instead that could fool the pressure switch and allow the heater to fire. Of course if it did fire, it would go off on high limit in a short amount of time.

 

[fatcat07]

Use a check valve on the return side instead of a valve. It will allow for the water to drain out of the heater so it has no pressure instead that could fool the pressure switch and allow the heater to fire. Of course if it did fire, it would go off on high limit in a short amount of time.

Hi ps0303,

What does this means "it would go off on high limit in a short amount of time" ? and would it damage the heat pump ?

 

[ps0303]

Sorry. On a gas fired heater.

 

[racket]

On a gas fired heater you should install a pressure relief, and flow switch when installing a bypass w/ isolation valves.