Question for Phase Builders....

[X_Man]

Is the installation of a desuper heater between the fan and compressor that important? What are the drawbacks for not having one?

[killermiller]

The "desuperheater" serves to functions. 1)desuperheats 2)reduces vibration between the condenser and the compressor.

[AliG]

Necessary, I would say no, but very useful, definitely, but I'll let the others explain since I'm still learning and would hate to give you wrong advice

[pythagoras]

It serves one purposes, providing your condensor is sized correctly, vibration absorbtion.

regards

John.

[teyber]

i would say its pretty crucial in a rotary build. even 1-2 coils helps a lot with vibration. i like a 45"-90" desup of 1/4" tubing, airing towards the 45" side(depending on condenser, fans, refrigerant, et cetera...)

Regards

[tim-]

i use those "desuperheaters" only to reduce the vibrations and stress on the brazed joints, especially on the condenser with very thin pipes.

[Clemmaster]

In a thermal point of view, the desupperheater and the condenser are 1 component. A condenser is also a desupperheater. A condenser is more efficient but If you don't have space enough to fit a bigger condenser you can add a desupperheater, that will help the condenser a bit (depending on the desupperheater you can set).

Most of coil you see on builds are set to reduce vibration (like everyone said). They are desupperheaters (whether they want it to be, or not) in everycase because heat is transfered through them (exept if you insulate them) even if it isn't their first purpose. All the discharge line is a desupperheater in every case when uninsulated.

[Xeon th MG Pony]

The "desuperheater" serves to functions. 1)desuperheats 2)reduces vibration between the condenser and the compressor.


In a single stage it is nothing but a vibration absorber with nothing more then two loops, that or a long U bend. Any more then that it is a waste of copper.

It is necessary to prevent work hardening and cracking of the copper, and in the case of a single stage it is called a vibration isolator, not a de-super-heater

[X_Man]

Thanks for the info guys! My Mach II GT is giving me startup issues (temp spikes at startup. I shut it down and it starts again fine.) I will attribute that to a faulty controller. However, sometimes after sever hours of running; I get the same issue as above.

With my relative intelligence and non EE background, I was assuming the desupperheater was also providing extra cooling to the refrigerant before entering the condenser. At which point, the overheated condenser would shutdown the system if the refrigerant was sucked back into the condenser too hot.

So from what you guys are saying, I simply have another faulty controller in less than a year - just great!

[Xeon th MG Pony]

Nice thing about refrigeration systems is there is little to go wrong with it, the controllers how ever!