Based on the provided information, one specific time to use the pump in an air cooler is while filling the tank with water to prepare for instant cooling.
Preparing for Instant Cooling
Air coolers utilize a pump to circulate water from the tank up to the cooling pads. The pads absorb this water, and as air passes through them, evaporation occurs, which cools the air. The reference highlights a technique to ensure the cooler provides cool air immediately upon turning on the fan:
The Pre-Soaking Method
- Run the Pump During Filling: Instead of waiting for the tank to be completely full before starting the pump, you can run the pump simultaneously while filling the tank with water.
- Saturate the Pads: This process allows the water to be immediately circulated through the cooling pads as the tank fills up. The pads have time to soak and become fully saturated with water before you even turn the fan on.
- Benefits of Pre-Soaking:
- Ensures the pads are wet from the moment the fan starts.
- Facilitates immediate evaporation and cooling of the air.
- Avoids a brief period of warm air output while the pads are initially wetting.
The reference specifically notes, "One way of ensuring instant cooling is by letting the pump run while filling the tank with water. The pump will run the water through the cooling pads, allowing them to soak the water beforehand."
Steps for Instant Cooling Setup:
- Begin filling the air cooler's water tank.
- Turn on the water pump while the tank is filling.
- Allow the pump to circulate water through the pads as the tank reaches its desired level.
- Once the tank is sufficiently full and the pads are visibly wet, you can turn on the fan.
This method ensures that when you activate the fan, the air passing through the pre-soaked pads is cooled right away, providing instant relief.
