correct running pressure/temperature formular

[Daniel3359]

Hi all, I need your help, I'm confused, can you please tell me if there is a formular I can use to work out the correct running pressure/temperatures of any refrigerant system I may come across in the field, ie 407c, 410a, 22, 404a, 134a. If I have a r22 split and a r22 freezer both running correctly, will they both have the same hi/lo pressure/temperatures or does it vary upon application? thanx for your time, please exsplain as if you are talking to a baby so I can fully understand, cheers

[chillerman2006]

Hi Daniel

temps/pressures vary

suction pressure will relate to the evaporater temp
suction temp will relate to superheat
discharge pressure relates to suction pressure & ambient temp
discharge temp relates to the compressors abillity to do work
liquid line temp relates to subcooling

A good place to start is

http://prostores1.carrierzone.com/servlet/techmethod_com/StoreFront