Need help with electrical for Armstrong 3.5 Ton 16 SEER
I have just had an Armstrong 3.5 Ton 16 SEER R-410a system installed but I don't think the second stage is coming on. I am using a Honeywell FocusPRO TH6000 series thermostat, a 4SCU16LT series outdoor unit and a R Series variable speed airhanler. The system calls for 19.0 Amps RLA but but the Amprobe only measures 6.6 Amps. The system cools but I want to ensure that the system is configured corectly. Please advise what the correct wiring should be from the thermostat to airhandler and compressor unit.
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Re: Need help with electrical for Armstrong 3.5 Ton 16...
Next item: What is the exact model of the thermostat? It should consist of TH6###?#### where the "#" are numbers, and the "?" is a letter. And also you can check the following:
1. Remove the thermostat by gently pulling straight out from the wall to remove it from the sub base and tell me is you have 1 or 2 terminal blocks on the sub base. This will tell me if your thermostat is a 1 stage cool or 2 stage cool thermostat.
2. Check the air handler low voltace connections and check that the wiring is connected to both Y1 and Y2 and that these wires are connected to Y1 and Y2 at the condensing unit.
It may be the case of not connecting the condensing unit 2nd stage wiring, the thermostat is only 1 stage cool, or some similiar wiring mishap. Have seen it many times over the years. People get in a hurry and forget the small things. But if this was professionally installed, you paid a good price, if you find that the wiring is incorrect or the themostat is wrong, you should call your installing contractor and demand they return to correct this issue to maintain your factory warranty. If you have any addtional questions, or concerns or need help with any of the above, you can contact me again through here or via my company website at www.emshvac.com .
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Check your thermostat and heat pump owner's manuals. Thermostat may be programmed to require electric heat at higher temps. Also could be bad outdoor temperature sensor tied to
Heat pump system controls (I had that problem) When was it installed? Warranty thermostat and or Heat pump? Call installer
Thermostat programming is a headache. No help from installer? call customer service heat pump and thermostat. Some possibility of bad installer wiring. There is also a heat pump "defrost" cycle. Usually the Electric coil will turn on to compensate for the Defrost cycle which is just the standard air conditioning mode therefore moves heat from inside to the outside coil to melt the frost. This cycle may be occurring too often. I had that problem. Fixed under warrantee.
Heat pumps are complex machines. The controls even more.
You need a tech, hopfully you are still under warranty.
Hope this helps.
Ask your installing company for the AHRI number. If installed with a
matching furnace and coil as listed in the certification then you will get 16 seer rating. If they installed something different than what is listed in the certificate then demand all parts listed or a refund.
I would have an air conditioning contractor do a heat load calculation and give you and estimate. 3 ton may work if your insulation is good and your windows seal well. 4 ton may be too much and you won't get the humidity removal needed in Florida.
You have 10 seer 4 ton unit. A compressor install in my company (4 ton) is about 1400 dollars. Remember when you change compressor you only get a 1 year warranty. A new unit can have as much as 10 year compressor warranty. Amana has a 10 year parts and labor with their unit. The new unit will be 13 seer and you may have to install a TXV inside. You might think about changing the whole system with the new 410A system. Either way a new condensing unit is needed. I have not had anyone just change a compressor in an older unit. Just not cost effective. Get several estimates before you make up your mind. Rus
I believe you are asking which furnace to go with?
Just some clarification first.
The "condensor" is the outdoor unit.
A "Compressor" is the device inside the outdoor unit that pumps and "compresses" the refridgerant.
An evaporator is the indoor coil, it has refridgerant running through it.
The furnace is completely seperat from the condensor and evaporator.
I "THINK" you are saying that you are looking to buy an AMANA system with a 5 ton 14 to 16 SEER condensor, and a furnace, but you need suggestions on the furnace.
typically when you purchace a condensor, the evaporator coil is simply matched by the manufacturer to the specific condensor you purchace, there is no choosing to deal with. All condensors ofcourse come with a compressor already installed.
If my assumption about your request is correct, maybe this will help.
Amana's 90+ furnaces are great units. I would recomend them to anyone. The 80+ uses a somewhat inferior heat exchanger, and is ofcourse less efficient.
Anything higher than a 90+ can take quite a while to recoup the costs of the enitial purchace through your efficiency savings.
If it were my home, I would go with the 90+ furnace, and the 16 SEER Condensor/evaporator system. But ultimatly, its up to you, your efficiency standards and your wallets potential.
If you live in a northern state where AC is little needed, I'd go with the 14 SEER AC.
Again, an initial cost verses long term savings issue.