All top end HVAC. The model number of the furnace may be AUD2C080A9V4VA. This should be rechecked. You also need to find out the evap coil model number and matching AHRI number, no third party coil acceptable. What about filter media cabinet? New and correctly sized refrigerant lineset? The biggest question raised by above is why an 80% eff furnace and not the AmStd equivalent of 95% XV95 furnace. Plus a 2 stage thermostat that controls furnace staging based on demand not a timer or software algorithm that will always go to high stage whether needed or not. Based on your area, I would want dehumidify on demand set up for AC cooling.

What size AC and furnace are you replacing? A load calc may be indicated for correct sizing.

I agree pricing is frisky. You need another quote from Trane and Carrier/Bryant dealer.

IMO

Thanks. Thermo indicated is pro6000 wifi. Previous unit is 3 ton. Doesn't look like lines are being replaced in this quote. No mention of filter media cabinet

Ps i should have said zone 4. Im in california

Where in California? Makes a difference. 3 ton to 4 ton? Why? I just love it when dealers oversize. They need to back it up with documented facts to support that. Pricing probably OK for expensive California. And the 80% furnace would be OK if sized correctly. You need to follow up with my concerns. Sizing of old furnace, size of AC quoted, 2 stage thermostat, media filter cabinet, refrigerant lineset, evap coil model number.

And going up from 3 ton AC to 4 ton can be a big deal as far as ductwork's ability to carry extra CFMs. 33% increase not small. How did existing AC cool your home? Refrigerant lineset has to be sized to size of AC and mfg specification. Not an insignificant detail.

I would want another quote from Trane and Carrier dealer for price comparison.

IMO

Sacramento. The existing AC costs a fortune to run, goes 24/7 and can't get the house under 78. Ill call a trane dealer today

Also will call the original guy about the lineset, filter.i cant find much obline if pro 6000 thermostat is correct for 2 stage.

Ps- looks like 4 ton furnace 3.5 ton hvac

That 3-ton unit may only be delivering 1.5 to 2-Ton of cooling due to a bad install & perhaps undersized duct system & filter area. Never upsize just because the existing unit didn't handle the load.

Try to do an accurate whole-house LoadCalc with this free software:

http://www.loadcalc.net/ Print the instructions & follow them; if needed, get others to help you.

The return air is definitely undersized (and the air more "leaks" out of the registers rather than blows out. ) We will be adding a second return duct in the master bedroom when replacing. Can't upsize the current one - due to the house design (Truss running down the center of the hallway.) I'll try that loadcalc out tonight.

I want to replace the unit regardless, it's wicked loud.

Coil is an ADP coil. He says it's aluminum like american standard, and they get better efficiency with them.

Sorry, wouldn't have the ADP coil. Follow up on my suggestions/concerns.

IMO

Sounds reasonable to me, to stick with the whole system designed together as American Standard intended! Would be a shame to cut corners on an expensive unit with an off-brand part, though he says he does see higher efficiency with the ADP. He offered to quote with AmStd too, which implies the cost would be even greater. 11k as is just feels like pushing it.

-eta

The thermostat is Honeywell Pro6000, I -think- it's GTG for two-stage, but it seems a little underwhelming considering the cost/level of equipment for the rest of the system.

The furnace cabinet is american standard with grille mounted filters.

Filter media cabinet not used, he prefers filters at the return air instead to prevent additional restriction- due to long runs on one of the return air ducts. He did offer the american standard coil- at the same price, but still urges ADP for on-paper efficiency. Says AHRI numbers match on the ADP. Recommends 80 furnace instead of 95 furnace, as the 95 furnace reduces cooling efficiency (And we rarely use the heater.)

Offered AmStd coil is 4TXCD063Bc3 he said hte coil will be 24.5" wide and the furnace UD2c080bd9v4 21" wide. This is to match the ari 18 seer that the adp coil gets. (Which, as i learned, is a calculated, not tested rating.)