With April showers well on their way, one customer asked the question, “How does all this rain affect my HVAC system?”
Bruner Engineer John Mrofchak has the answer:
An air cooled condensing unit could operate more efficiently with a lower discharge pressure when it is raining outside or when cooled with moisture. However, air cooled condensing units are typically not designed to be continually sprayed with moisture. Continual moisture could create several issues, including electrical, compressor, and condenser coil damage.
Compressor damage could result by water spray overcooling the condenser, and liquid refrigerant returning to the compressor. Compressors are designed to compress gas, not liquid. The refrigerant in an air conditioning system changes state from liquid to gas as part of the air conditioning process.
The condenser coil could be damaged by poor spray water quality. Another type of outdoor condensing unit is an evaporative condenser. If you have an evaporative condenser, you’re in the clear; they are designed to be continually sprayed with moisture.
For a more detailed explanation or assistance preparing your systems for the influx of moisture, contact Bruner Corporation at (614) 334-9000.