What should I do if the blower wheel assembly seems to be out of balance?

Check the set screws on the blower assembly hub, If loose, follow this procedure.  If the setscrew is loose on the opposite of the pulley side, untighten the set screw so that is not touching the shaft, then grab blower wheel assembly and pull the assembly against  the leather washer and bearing, with palm of your hand shove the blower …

What causes noise at water supply line?

¼” copper tubing when not secured to solid surface near cooler will cause water hammering, all the way down the copper tubing to where it is connected to solid supply line. Secure 1/4”copper tubing with rubberize hose clamp. On AeroCool coolers, secure ¼” tubing within 18” where tubing is attached to side of wet section.

Are thermostats available for evaporative coolers?

Yes. PMI™’s Aerocool Pro Series Cooler is equipped with its own specific thermostat designed specially for that model.  Additionally, PMI now offers The Nth Degree (NDS) which is UL-listed, easy to install and works with any cooler that is 115V or 230V and has up to 1 horsepower motors.

What is the CFM Rating on my cooler?

The CFM rating for the units can be found on the brochures for each unit. Please refer to support center and click on “Downloads” to select the brochure for your product.

What is the SEER Rating on my cooler? What is the BTU Rating of my cooler?

SEER (Seasonal Energy Efficiency Rating) is a measure used for air conditioners. It refers to the BTU/hr of cooling, per watt of electricity. Evaporative coolers are rated by CFM, (Cubic feet per minute), of air flow. Since blower motors consume electricity based upon the horsepower of the motor, there is no energy rating that is the same as the compressor …

Where is the model number located?

For all of the Aerocool products, the model and serial number can be found under the electrical connection, all others can be found on the rear top flange or the rear leg of the cabinet.

There is a smell coming from my cooler what should I do?

Drain, flush and clean the reservoir. Ensure the cooler has a bleed-off or Power Cleaning System installed. You may need to clean or replace pads. If you have new pads you should run your pump with out the blower for a period of time to wash out some of the smell, during which time you also dump the sump of …

How many times a year should I service my cooler?

Regular maintenance is essential and we recommend at a minimum of three times during the season for cooling comfort, extending the life of the cooler and to avoid unnecessary parts replacement. This service should be at start-up, mid-season and shutdown. Refer to the Owner’s Manual for a complete maintenance schedule.

What is the Power Cleaning System?

The PCS115 Power Cleaning System will automatically replace the water in your cooler with fresh, clean water every 12 hours of pump operation. This will flush out the old, mineral-laden water in the pan and bring in all new clean water.

Is a bleed-off required and can it be restricted?

A bleed-off system is included in window and whole house coolers and should be installed as instructed in the Owner’s Manual. An optional alternative to the bleed-off system would be the installation of a Power Cleaning System, which is a standard feature of the Aerocool Pro-Series units.

What is an UP-DUX?

Up-dux is a ceiling vent which allows the air to pass through the attic area and out through the roof vents. When the cooler comes on, the air pressure automatically opens the up-dux barometric dampers and when the cooler shuts off, the damper automatically closes.

What is evaporative cooling?

Nature’s most efficient means of cooling is through the evaporation of water. Evaporative cooling works on the principle of heat absorption by moisture evaporation. The evaporative cooler draws exterior air into special pads soaked with water, where the air is cooled by evaporation, then circulated into your space.

What is a bleed-off?

All PMI coolers come equipped with a bleed off tee and tube.  The purpose of a bleed-off is to continuously eliminate a small quantity of water from recirculation, allowing fresh water to enter the reservoir to reduce scale build-up and dilute mineral concentrations. To determine the flow rate that is right for your cooler, refer to the Owner’s Manual that …

Why evaporative cooling?

Evaporative cooling has gained rapid acceptance because the process relies solely on water evaporation with extremely low energy consumption to produce a significant amount of cooling.  Evaporative cooling will generally pay for itself (including installation) in just a few seasons. This equates to a great investment for consumers who on the average own the same home for 5-6 years. Also …

How many windows or doors do I need to leave open?

You should open your windows until the air pressure inside the house is nearly balanced with the air outside.  One method used to determine when air is reasonably balanced is to place a tissue paper against the screen in the window furthest from the cooler and adjust the opening of the other windows in the house until the tissue paper …

What is exhaust air?

The evaporative cooler draws fresh exterior air through special pads soaked with water. The air is cooled, filtered and circulated through the home. The hot, stale air needs to exit and this is referred to as “relief air”. The best “relief” design is to exhaust slightly less air then your cooler is supplying. This will ensure that your home has a slight positive …

Why is my cooler not cooling?

You may have inadequate exhaust.  Open more windows or doors. For every 1,000 CFM of air delivery 2 sq. ft. of unrestricted air relief is required. Check the water distribution system to make sure there is sufficient water to the pads and check pads to ensure they are not clogged.  If pads are not wet, check to see if recirculating pump is operating.  …

What choices of evaporative cooling do I have?

Many different choices are available; window units, portable units, ducted roof mount units, all the way to large industrial units.  There are also many types of media for each of the above cooler styles.

How much energy does evaporative cooling save?

An evaporative cooler consumes about one-quarter of the electrical energy required to operate a refrigerated air conditioning unit. You can save up to 80% on your summer cooling bill!