This is my first post, so I hope it's in the right spot. Let me start out by saying I chose the wrong independent contractor to install my new American Standard gas pack at my home. I no longer trust them at all, and have to pester them to death to get them out to the house at all.
Anyway, a couple of days after installation, I noticed that my AC wouldn't go below 67 on the thermostat. I called the owner of the company the next day to ask why, and he admitted to setting a minimum temperature on the thermostat when it was installed (beyond that, they have avoided to the best of their ability giving me an owner's manual for the thermostat). When I asked why he set a min. temp, he said that the new refrigerant can cause damage if the unit runs too cold.
When I called American Standard's tech support, the man told me the minimum suggested operating temp. was 55 degrees, and they had never heard of an installer setting a minimum temp. I of course had them come out and take the governor off the thermostat, but I'm still baffled by why they would do this in the first place. I've found my installer to have questionable ethics, and I'm concerned about any possible motive for doing this.
Thanks in advance to anyone who responds with ideas about this... I honestly know very little about this stuff.