this is a reposting. If anyone has answers it would be greatly appreciated.
I wish I had found this site prior to having my a/c system and new heater installed. There really is wealth of information on this site thanks to all of you.
My question is this, I had the following installed: a 3.5 ton American standard Allegiance 14 model #2A7A4042 for the first floor and a 3 ton model # 2A7A4036 for the upstairs. These were paired with american standard variable speed air handlers model # 2/4TEE3F40A with honeywell f100 media filters. Each system has two zones.
For the heat and hot water a burnham v8 series v86 oil fired boiler was installed.
The first floor system was also fitted with an EWC model S2020 whole house humidifier with its own humidastat. the one that came with humidifier.
Four white rodgers single stage thermostats were installed which are the 80 series. Model #1f80-361.
I have questioned weather the variable speed air handlers
are doing what they are supposed to do. (change speeds)
After reading one of the posts here by wyounger (quoted below)I question weather the contracter installed the proper thermostats to take full advantage of these air handlers.
Which thermostats are you refering to in that post that will comunicate with the air handlers? Are the white rodgers thermostats I have adequate?
Is there a way for the humidistat for the humidifier to be eliminated and have the thermistat for the A/C/ heat control that function also? Which thermostats would do this?
The variable speed air handlers have dip switches on the circuit board (8 of them) which can be set in different combinations for optimum performance. which settings would you recommend?
Lastly I read somewhere that the blowers on the air handlers have adjustments so they can be matched to the size of the condensors. What settings should those be and how is this done?
I asked the contracter if these were all set up and he said yes, but after installing the system he just always seems to be in a rush to leave so I dont think he took the time to set them up properly.
Sorry this is so long. Im learning. Thanks in addvance for the help.
Originally posted by wyounger
"The VisionPro's only trick for humidity control is that if humidity is too high when there's no demand for cooling, it can start the AC up and do some overcooling to help compensate.
Many other thermostats in the same price range can do that, but can also send a signal to a variable speed furnace/air handler to slow down the blower as needed anytime the AC is running. By running the blower more slowly in cooling mode, the system dehumidifies more than usual and cools less than usual. It will do that as needed during a call for cooling, but can also use this strategy in conjunction with overcooling. That way the thermostat has some additional control over humidity beyond just overcooling, and if it does have to overcool, it can adjust the blower speed to try to maximize dehumidification and minimize how much it has to cool the place beyond your cooling setpoint.