And now I have questions...The install team finished yesterday and all seemed well. It was only 75 degrees out but the house got up to 80 and the wife was not happy. The system cooled the house and I slept well. Today it was 76 degrees and momma set the themostat for 74 and the unit kicked on, I went over to enjoy the new quiet and for a goof, I felt the new lineset. The suction line was cold and a little damp but the liquid line was not warm at all....hmm I say so I put my gauges on it and the pressures were 70 and 160. Could anyone tell me if this is OK. If it is I will not call but if it is not, I need to make a call to the HVAC company tomorrow.

Thanx!

 

You're running the A/C with the tempts that mild??? or just testing it out?

Most newer unit, the liquid line set are going to be air temp. and don't know how humid it is out, it may be damp on a dry day, and sweaty on a really humid day.

Not a smart ideal..... is your new system R-410?

Did they take a temp drop reading, and follow the charging chart?

 

Jay

First of all, I dont mess around if the old lady is not comfortable, Im outside, she is inside, I think she just wanted to test out the new system. No the system is a R-22 system. No idea if they did a temp drop, they are the pros, not me. There is no charging chart, just a superheat chart in the book and the cover. Are you saying that the liquid line does not get warm on newer systems? I am an electrician by trade, thats all I can critique about this install, came here looking for some advice. Sorry Im not much help on answering your questions.

 

Ok, didn't want you mixing R-22 into a new R-410 systen otherwise, would be time bomb!


You should get around 20˚ drop across the coil.

Yes, there is more surface area on these newer unit, so the head pressure isn't as high to condense the gas. With more area, the liquid will cool down to air temp.