Arrived onsite for lack of cooling to the third floor and too much cooling in the basement level. Furnace with AC coil located in basement. Upon arrival ask homeowner to turn down the thermostat to start the AC. Went to the basement hvac room. Could immediately feel the cold temperature in the room. Used probes to measure air flow and temperature drop. Measure around 19 degree temperature drop 68/49 and measures .09 total external static pressure (TESP) both are within manufacturer’s specifications.
