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The Infinity control is very expensive and when I shopped for a new furnace none of the vendors even wanted to quote it. Several (all?) of the Bryant/Carrier guys said their own homes have complete...

My Infinity furnace was originally installed with a cheap single stage thermostat. The furnace worked fine with it and provided a lot more comfort than our ancient single stage furnace. The...

Yes, I did reset it and it does its test with the fan running on high and then goes back to saying it is 100% used.

PJ,

Actually, I have changed my mind about the 60kbtu being perfect. I'll never know for sure but here's my rationale. Note that I am a mechanical engineer but have no HVAC background...

I've resurrected this old thread because it has information I was searching for but didn't exactly find. I have an Infinity MVP58-80 and am confused by the autosense dirty filter feature. Here's...

I'm just a homeowner but went through the exact same thing last year so I'll throw in my two cents. Three quotes proposed a 60kbtu furnace and 2 ton AC. One proposed an 80 and a 2 ton. One...

You can turn off the option that does this. It's called "dehumidify" and if it's turned on it will lower the temperature up to 3 degrees below the setpoint in an attempt to control humidity. Sounds...

I'm another MVP owner and went the same route--first adjusted the DIP switches to suit my wants for continuous fan speed, then eventually got an Infinity control. I would agree with other people...

I don't think anybody is making a big deal out of it. But the original poster mentioned that he has no good places to route wires through his house walls and that he had tried wireless and didn't...

I have an OAT sensor on my Infinity system and find that it works great. Mine is hooked up to the OAT terminals on the furnace board because my outdoor unit is a regular single stage unit, not an...

Just a thought from a fellow homeowner's perspective, have you tried running the fan all the time? Doing so should help even out the temperatures.

Jon

If you don't mind, would you elaborate just a bit on what happened in your case to pass on this good info?

Jon

We just replaced an ancient single stage furnace with a modern two stage high efficiency one. From a comfort standpoint the two stage furnace is much, much better. It's quieter most of the time...

How do I know if my system has a TXV?

Jon

How does a person know if an AC system has a TXV or not? This is not an Infinity AC exclusive, right?

Jon

I edited my post to correct the terminology. Carrier calls it the "Infinity thermostat control system". It has the ability to control a humidifier so I was referring to it as a thermidistat but...

I just got an Infinity 96 installed last week. The Infinity electronic panels are designed to work with virtually any thermostat, even the simplest 40 year old Honeywell round thermostat. The...

Sorry, I must have looked at someone elses profile by mistake. "Great White North" is clear enough for me.

This has been an interesting topic to learn from. A little confusing, but...

This discussion is confusing to me. It makes no sense for installers to be selecting 80% efficient furnaces in a climate as cold as you suggest. And your profile says Pennsylvania. Where do you...

Got it. That make sense now. An OAT sensor is part of the standard Infinity AC. Must be added elsewhere if you have an Infinity furnace but not the Infinity AC. A sensor for this purpose comes...

Can anyone tell me how the OAT sensor for an Infinity control is implemented? Does it come with control panel or the thermostat? Or is it an optional part you have to purchase separately? If the...

I am also in the Twin Cities and have just selected a HVAC vendor to install a new furnace and AC in my home. I could share my impressions of the contractors that I consulted. Would that be...