Dry summer air lets an evaporative cooler do its job.
Evaporative cooling works by adding water to moving air. Buffalo Gap's dry summer air gives that evaporation room to lower the temperature of the air coming through the cooler, making this type of equipment a practical option in the right building. The result changes when outdoor humidity rises during humid or stormy weather: damp air has less capacity to take on water, so the cooler does not perform like refrigerated air conditioning.
Ventilation is part of the system rather than an optional extra. A cooler needs a path for air to move through the building, so a house sealed tightly against outside air will not use it as intended. We look at the unit's operation along with the conditions needed for that airflow, rather than treating it as the same kind of equipment as a conventional air conditioner.
Seasonal service focuses on the pads, water distribution, pump, float setting, fan, belts where fitted, and the cabinet itself. Windblown dust can load pads and screens. Water with minerals can leave scale that restricts water flow and shortens pad life, so we assess the water condition instead of assuming what is in it. Before freezing weather, the unit needs a weather-tight shutdown and protection for the season.