I have to replace the HVAC (heat pump) system that services my upstairs: 4BR/2 full baths in about 1200 sq. ft.
Existing system is ancient (maybe as much as 30 yrs old); squirrel cage is broken, and there may be some bearing issues.
I've gotten three quotes (all are new r410a refrigerant systems) as follows:
NUMBER ONE - AMERICAN STANDARD SYSTEM
1. The American Standard model number for the indoor unit is 4TEE3F31B1 and the model number for the outdoor unit is 4A6H5024E1 with the following ratings: 13 EER, 15.25 SEER and 8.6 HSPF.
2. The air handler is variable speed.
3. The compressor is a reciprocating compressor.
4. The digital thermostat is American Standard #401. To upgrade to a programmable thermostat it would be an additional $110.00 and the model number is ACONT802AS32DA.
5. The system has electronic demand defrost.
6. The heat strips are staged, 8KW.
7. The price quoted in the contract includes modification ductwork if needed and a replacement pad if needed.
8. The quote does not include a new line set. A new line set is $425.00 installed.
NUMBER TWO: TRANE SYSTEM (SEER 15, EER 13, and HSPF 8.6)
* Outdoor unit: Model #4TWX5024A1
* Variable speed indoor air handler: Model #4TEE3F31B1
* With scroll compressor
* Honeywell Pro 6000 programmable thermostat (I assume this is the "FocusPro")
* Electric backup heat at 5KW and not staged
* "I think 2 tons will work fine, you will get more heat and cooling with a 15 SEER over a 7 SEER unit" (quotation is by the contractor)
* 10 yr Trane warranty on teh compressor/5 yr Trane warranty on parts/2 yr parts and labor warranty by the contractor
NUMBER THREE: HEIL 2-TON 15 SEER SYSTEM (SEER 15.5, EER 12.7, HSPF 8.8)
* outdoor Heil unit: #H4H424GKD
* indoor Heil air handler: #FVM4X24OOA
* "I feel 2-ton will do your upstairs real well." Also, the supply and return ducts are sized for two tons of air"
* Backup heat strips at 10KW and not staged
* new line set and all necessary duct changes
* programmable thermostat (i'm waiting on the model number)
* warranty: 5 yr on compressor; 1 yr parts; 2 yrs labor
I would appreciate comments about the relative merits of these systems/brands/configurations.
Thanks very much in advance.