News of HVAC (Air Conditioning) (1)

R-22 is a refrigerant often used in air conditioners and heat pumps. Because R-22 depletes the ozone layer, production and import was significantly reduced in 2010. The United States Environmental Protection Agency (EPA) has reduced the production of R-22 refrigerant once again for 2013. This represents a 70% reduction from the approved R-22 production of 2010. By 2015, in just two short years, there will be almost a complete ban on the production of R-22. ...

How does Air Conditioning work? From my understanding, you aren't actually putting cold air in the home, but taking warm air out?

I’ve learned a hard lesson at the expense of an inexpensive component: the capacitor. My aggravation started four or five years
ago. I was getting foreign-made capacitors from my distributor, and they started failing at a high rate, very early. In fact, we were
seeing a 35% failure rate before the caps were even 18 months old.

It has become so ...

I am having Carrier AC (Probably 30 year old), when I press relay switch it start running. I can see current (24VAC)is coming good to relay switch (from thermostat). Weird problem is sometime AC start working properly and mostly no.

Recently, when I removed and reconnect wire between timer and relay, I noticed quick release on relay. After that AC started working. On next day, it didn't turn on. I am kind of wondering, what ...