I was the owner of an HVAC firm for over 35 years in the mid-Atlantic area. Never did a manufacturer suggest that buyers of their products pour hot water down the condensate drain. The way the air conditioning systems work is that as air passes through the evaporator coil (in the air handler) the humidity condenses (forms water) and that water then slides down the coil and into the condensate drain system. Unfortunately, the coils are not 100% effective and the residual water left behind on the coils becomes problematic. Moisture in combination with darkness creates ideal growing conditions for mold. That's a fact. What to do? Running the blower continuously is one approach (inexpensive). Another is to set the thermostat slightly higher so the system cuts off periodically (inexpensive). Another approach is to have special lights installed within the fan coil (though these can be pricey).
|