York "Mustang"

[RichardL]

We started our first York "Mustang" This week....

Air-Cooled Screw Chiller without "ANY" Slide Valve(s) or charged element Valves of any kind.(TXV's, EEV's etc.)

Puuuuuuuuure' VSD Capacity control, It also has Sub-Cooled liquid down to 55°f "Without" heat exchanger.

Last readings was 85% capacity while loafing @ 172hz.
(100% would equal 200hz.

Honestly all, Looks like York has a winner here...

It was...and is the first one started....

And oil return is not going to be a problem...

[absrbrtek]

They using an economizer and side loading the screw for subcooling?

Originally posted by RichardL
We started our first York "Mustang" This week....

Air-Cooled Screw Chiller without "ANY" Slide Valve(s) or charged element Valves of any kind.(TXV's, EEV's etc.)

Puuuuuuuuure' VSD Capacity control, It also has Sub-Cooled liquid down to 55°f "Without" heat exchanger.

Last readings was 85% capacity while loafing @ 172hz.
(100% would equal 200hz.

Honestly all, Looks like York has a winner here...

It was...and is the first one started....

And oil return is not going to be a problem...

[lew2]

Richard,

Any refrigerant schematics or other interesting information
available?

If 200Hz is 100%, what is the low end Hz? Does it track lift in any way to keep enough torque to the motor, or perhaps rely on the drive setup? I assume (always gets me in trouble) it is a volts per hertz drive situation.

Quiet?

Sounds very interesting!

[RichardL]

Lew2;
No printed literature on this puppy yet..Zip...Nada..
Yes uses part thread injection to sub-cool "The Tank"..
"The Tank" has a stepper valve on the inlet & discharge.
Internal compressor parts add up to a "Grand Total" of 11 pieces....
VSD uses a Vf ratio but it a velly-velly strange voltage...

[no8no3]

Richard, you are messing me up....I'm an inch away from going back to residential work, and you intice me with what might be the world's first WORKING screw chiller. You know i must learn more about this dude. Can you hear a freight train over it? I assume it's a 22 machine, what is the max tonnage available?

[double bubble]

Hello yobro 1619 here . I can't wait to see one of these in n.y. Some of my compadres saw one of these in York .

[flemsteele]

WOW sounds very interesting!!

[RichardL]

[QUOTE]Originally posted by no8no3
[B]Richard, you are messing me up....I'm an inch away from going back to residential work, and you intice me with what might be the world's first WORKING screw chiller. You know i must learn more about this dude. Can you hear a freight train over it? I assume it's a 22 machine, what is the max tonnage available?

Presently the compressors are eiher 100 or 120 tons each.
The one I was involved with was a 240 ton unit..
We set this one up for 100HZ on the low side, although I am told it will operate much lower..But we kinda' Wooshy down heah', and wanted to stay on the safe side...
Drive rotor spinning @ 9000RPM @ 100%..
Smoooooooooth as silk too..

[no8no3]

SWEET!!!!! I will stay on my York buddies to look at one they install ...if ever.