CPEV help

[_HL4E_HalfLife_]

Few questions here about cpev's, At the 4 links below are all of those CPEV's?
If they are whats the difference between them all?


http://www.emersonflowcontrols.com/web/products/regulators/catalog/EGR(E).pdf
http://www.emersonflowcontrols.com/web/products/regulators/catalog/DGR(E).pdf
http://www.emersonflowcontrols.com/web/products/regulators/catalog/ACP(E)%20Regulator.pdf
http://www.emersonflowcontrols.com/web/products/regulators/catalog/CPH(E).pdf

[_HL4E_HalfLife_]

Comon guys someone on here must know if these are CPEV's?

[Tyrou]

those are not CPEVs, they are Hot Gas Bypass, it's installed on the suction gas line going back to the compressor, not on the liquid line from the dryer :(

I think that's useful when you use multiple evaps, but I'm not skilled enough to be sure of that :)

[Jort]

no tyrou its a kvp for multiple evaps.

http://www.actrol.com.au/ProductLookup.nsf/0/91E6329D4287851ACA256C38000D0D59/$FILE/PAGE_41.HTM

the hot gas thing is to regulate the capacity

Hot gas bypass prevents indoor coil freeze-up at very low loads. Hot gas bypass refrigerant control assures reliable cooling operation on those rare occasions when the load drops to extremely low levels. During those low load periods, when the system is experiencing minimum airflows, the hot gas bypass valve allows space condition to remain comfortable.

;)

[RussC]

There Hot gas bypass valves. There used to divert hot liquid line gas to the evap or suction line to regulate capacity. Essentiall you heat up the evap or suction line to equalize the capacity to the load. As suction line temp(pressure) falls, the valve opens to allow hot gas in, this raises temp(pressure) so all the refrigerant is vaporized.

RussC

[_HL4E_HalfLife_]

So if those are not CPEV's is there anything on that site that is?

Hers a link to the products page

http://www.emersonflowcontrols.com/web/products.asp

[RussC]

Ya,
The ACP(E) are CPEVs. But there pretty large capacity, with the smallest orafface being 0.047. Not sure it thats OK with these small a system that we use, anyone know????

RussC

So if those are not CPEV's is there anything on that site that is?

Hers a link to the products page

http://www.emersonflowcontrols.com/web/products.asp

[chilly1]

You need an EGR-1/4S-2A Wihich is an internally equilived 1/4 ton valve with 1/4 inch conncetions and a pressure regulation range of 0 to 80 psi..
You qould be better served with a parker A7-AA Or a A2 would be even better.

[_HL4E_HalfLife_]

Ya,
The ACP(E) are CPEVs. But there pretty large capacity, with the smallest orafface being 0.047. Not sure it thats OK with these small a system that we use, anyone know????

RussC

Its going in a 1hp system.

[jinu117]

Its going in a 1hp system.
For single stage or?
If it is single stage, you still would be better off sticking to 1/4 ton.

[_HL4E_HalfLife_]

You need an EGR-1/4S-2A Wihich is an internally equilived 1/4 ton valve with 1/4 inch conncetions and a pressure regulation range of 0 to 80 psi..
You qould be better served with a parker A7-AA Or a A2 would be even better.

You have a link to those A7-AA and the A2 im having a hard time getting anything on the parker website.

[chilly1]

Don't know but teh A7-AA and teh A@ are parkers current internal Equilized offerings in the states.

[_HL4E_HalfLife_]

For single stage or?
If it is single stage, you still would be better off sticking to 1/4 ton.

I want to try one on my cascade system on 2nd stage i did on here a few months back.