Sep 3, 2023 · Keep in mind, setting the fan speed too low for the tonnage can cause damage. Hopefully someone who has installed/serviced your model will see this - otherwise its working 100% off of …

Jun 23, 2010 · Here is a link to the fan curve for the furnace. It looks like the lowest curve there ranges from 700 to 850 CFM, which seems too high for a 1.5 ton condenser, even though the manual says …

Nov 16, 2024 · The short answer was yes, the Ecobee 3 can work with a 2-stage furnace with a variable-speed fan, but can only control the fan at two speeds (not true variable).

Jul 11, 2019 · I have a 2.5 ton AC and I noticed that the furnace blower speed for cooling mode is in its default 4 ton setting (high). The issue I have with this is it's really loud when it kicks on (much louder …

Mar 16, 2021 · Trying to tweak our 10 year old Carrier heat pump with a FV4C air handler. There are settings on the air handler board for HP-comfort and HP-eff. Does anyone have an opinion on which …

Nov 20, 2021 · Which make sense. - When in cooling mode, manufacturer recommended setting has the fan pushing 1359 CFM. Practically max speed of what the fan was designed for. Much more CFM …

May 30, 2021 · After taking off the panel I was able to locate the dip switches that i believe control the fan speeds. Below is a picture of the only dip switches i could locate. Could anyone please explain to …

Jul 16, 2008 · IGNORE --IGNORE--IGNORE I jumped to the conclusion that the switch set controlled the fan speeds; a service rep just told me the speeds are controlled by motor wire placement on the …

Jan 26, 2008 · The air handler doc's had fan curves for setting the proper dip switches for cooling and heating independent of each other. First thing I noticed was the max fan speed setting capability at …

Sep 10, 2023 · I think he is trying to blow you off. The freon level may be low and 90% of the time that is the problem as that is what does the actual cooling. The tech can adjust the fan speed at that point if …