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ATIF NAVEED
Active Contributor

Join Date: Nov 2008
Posts: 16

FUNCTION OF SLIDE CONTROL

05/25/2009 11:00 AM

can any body define how position indicator works in slide control valve. SLIDE CONTROL VALVES are used in YORK A/Cs to regulate capacity control . Bit elaboration along with principle is needed . Help and time is appreciated
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redfred
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Engineering Fields - Electrical Engineering - Been there, done that. Engineering Fields - Control Engineering - New Member

Join Date: Dec 2008
Location: Long Island NY
Posts: 15600
Good Answers: 981
#1

Re: FUNCTION OF SLIDE CONTROL

05/25/2009 12:09 PM

If it's a potentiometer then it's real simple. Attach a reference voltage and return to the fixed, non-wiper parts of the potentiometer. Measure the output voltage on the wiper of the potentiometer. Now define "k" being the relative position of the wiper from zero to one:

Vo=k*Vref

Probably though, that's not what you want to know. I guess you want to know the mechanics and feed back theory behind a machine you can barely describe. I'm not sure I can help you there.

While I really do dislike being snarky, you'll have to be more descriptive what your slide control valves adjust, and what the indicator looks like to get help here.

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