I'm planning to replace my existing A/C units this spring, and this the first step of my research. From this afternoon's reading, I can tell I have alot to learn before I can feel like I'm making an informed decision. Gotta start somewhere, right?
Lafayette, La, about 40 miles from the coast, hot and humid for about 8 months out of the year.
I bought this house in June, 2.5 stories, 3500 sqft, built around 1998. Slab, with siding.
The top floor is a greatroom, around 550 sqft, always the warmest room in the house, uncomfortably so in the afternoon.
The second floor has about 1400 sq ft, split into 2 BR/2 BA, stays cool enough, but still warmer than the ground floor.
The ground floor has about 1600 sq ft, mostly an open space for the kitchen, LR. Master suite is down as well. This floor is always the coolest of course.
there are 2 units to heat/cool the house. 1 dedicated for downstairs, 1 dedicated to the upper 1.5 stories. Both of the outside units are Heil "High Efficiency 5000" units, model number CA5542VKD2.
1st question- what is the ton rating and SEER on these units?
The upstairs unit's fan stopped working, guy changed a capacitor and it was fine for a week. Then it stopped cooling, same tech comes by, says the coil is leaking, needs to be changed. We have him add freon, and that has gotten us by for 3 months.
I've come to terms with the cost, I just want a system that will save me some coin when the electric bill rolls in, and keep my upstairs cooler.
Given the state of the technology, what is the highest SEER you recommend?
Ballparked, do my current units look appropriately sized? Should I look at a larger system for upstairs?
Who makes a system that's capable of some basic automation, such as remote control by phone? Is there a thermastat that will integrate with a Logitech Harmony 1000 universal remote control?