aolan evaporative air cooler

117th Canton Fair 2015! Date: 15th-19th April,2015! Welcome to Aolan!

Date: 15th-19th April,2015

Place: China (Guangzhou) Export and Import Exhibition Centre

Booth No:3.2 L21-L22 Exhibition Area for Home Appliance

Welcome to Aolan!

117th Carton Fair Aolan

117th Canton Fair Aolan

Aolan New Technology! How Aolan liquid desiccant air conditioning works.

Aolan Liquid desiccant air conditioning working flow-chart 

How to Treat Water in a Swamp Cooler

  An evaporative cooler, often referred to as a "swamp cooler," is an air conditioning alternative that uses a water pump and water-soaked padding in a boxed frame to channel and cool outdoor air through a fan that delivers the cooled air indoors. It is most functional and healthy in dry, non-dusty and unpolluted atmospheres. However, these coolers must be properly maintained and treated for mineralization and the proliferation of bacteria and fungi that can occur in the water supply. 

 Instructions:

 1.Consult your Owner's Manual prior to any treatment to review the maintenance and treatment guidelines recommended by the manufacturer.

 2.Turn off and unplug the cooler unit. Turn off the water supply and drain the cooler unit via the drain plug.

 3.Clean the water tank by rinsing it with mild, soapy water and drain the cooler unit via the drain plug. If recommended by your Owner's Manual, place water treatment tablets and/or zinc anodes in the water pan to control corrosion, mineralization, and bacterial and fungal contamination.

 

Evaporative air cooler

 4.Refill the cooler unit's water supply, reassemble the cooler unit and restart the system.

 Tips & Warnings

 Besides a combination of soap and water, water treatment tablets and zinc anodes, there are other cleaning solutions available, such as bleach and chlorine, to maintain a clean evaporative cooler unit's interior and to treat the water supply.

The treatment methods described above are general recommendations and may not be suitable or most appropriate for your evaporative air cooler unit.

How to Fix evaporative air cooler

You may have to change the fan motor to fix the water cooler.

Water coolers, or evaporative air coolers, are also known as swamp coolers in the hot dry areas where they operate most effectively. The design is simple: A fan forces outside air through fiber filters that are kept wet with a water curtain that is pumped and distributed from a reservoir in the bottom of the unit. The water cooler is composed of several major components, including an electric motor, water pump, a fan blade cage and a reservoir water control float. The water cooler is fixed by replacing or adjusting these individual components as they present problems.

Instructions

1

Condition the water reservoir by opening the drain plug at the bottom and on the side of the unit to drain the water from the reservoir, and scrub the reservoir with a wire brush to remove all scale buildup and debris. Wipe the reservoir clean of all debris.

2

Paint the inside of the reservoir by following label directions on special water cooler paint, available at hardware stores, and allow it to dry.

3

Fill the reservoir to the water level mark on the inside of the unit, and follow label directions to pour special scale remover treatment, available at hardware stores, into the water in the reservoir, which will remove scale and improve water flow in the pump and the water distribution system.

4

Replace the pump by unplugging it and disconnecting the plastic water tube. Place the new pump into the new net filter bag, connect the new plastic tubing with a plumber's clamp to the pump and plug it in.

                             Evaporative air cooler

5

Install a new water distribution system known as the spider because of its central black hub and eight curved water tubes branching out from it. Remove the hub by unscrewing the nut that attaches the central hub to the top of the unit.

6

Cut the new water tubes to the same size as the existing ones; glue the tubes in the holes of the new hub with PVC glue, available at hardware stores, and use the bolt to attach the hub to the top of the cooler unit.

7

Change out the old fan motor by using a crescent wrench to remove the bolt in the motor slide mount, take off the fan belt and remove the existing motor. Place the new motor in the slide mount, place the new fan belt on the flywheel and adjust the position of the motor on the mount to apply adequate pressure so the fan turns easily without producing a high squealing noise which indicates the belt is too tight.

8

Remove all mineral deposit buildup from the inside of the unit to keep water flowing freely, by scrubbing the water troughs and water distribution ports with a stiff brush and white vinegar. Cooling efficiency is determined by how much water is evaporated when it runs through the filters.

9

Use a toothbrush to scrub the float mechanism with white vinegar to remove buildup so the balance arm can move freely. If necessary, replace the float assembly. Adjust the float ball, much like the float ball in a toilet tank, by bending the float arm to a position that will stop the flow of new water just below the top of the drain tube that sticks up from the bottom of the reservoir floor.

Proper Ducting for Swamp Coolers

   Evaporative air coolers are also known as "swamp coolers," a system for homes and buildings which emits moisture to keep the air cool. This method of cooling is popular in the dry climate of the Southwestern United States. Existing ducts for conventional heating, ventilation and air conditioning may work for swamp coolers depending on the size of the premises. For efficiency, you may need to enlarge the ducts or reduce them to a window opening depending on the cubic feet of the area and size of the cooling unit. 

   Swamp coolers need more volume of air flow than a conventional air conditioner because swamp coolers produce warmer air supply. The ducting system should handle the increased volume of air blown into the house. First you need to determine the right cooler. Divide the cubic feet of space you want to cool by two for the required cubic feet per minute of air blown into your home to determine the right cooler. The formula for a 1,500 square foot home with ceilings 8 feet high calculates as 1,500 x 8 = 12,000 cubic feet and then 12,000/2 = 6,000 cfm. You will need a swamp cooler with 6,000 cfm. For coolers 4500 cfm or smaller, use 18" ducts, 20" for up to 5500 cfm and 24" for 6500 cfm.

   Installation

   Homes with hallways and multiple bedrooms require duct installation for swamp coolers.Installers commonly used down-flow swamp coolers on roofs to flow through ducts. Flowing air through ducts from ground-mounted horizontal units makes maintenance easier with less risk of leaks on the roof.

   

Swamp Cooler

   Security

Opening or closing windows regulates the temperature and humidity. Installing up-ducts in the ceiling will properly duct the area where opening windows could present a security issue. Up-ducts release warm air into the attic and allows the cool air from the swamp cooler in. You may need additional attic ventilation for this method of duct installation.

   Small Units

Swamp coolers depend on dry, outside air. During hot and muggy weather, the coolers blow in hot, humid air which can emit a musty odor through the duct work into the house. Small premises have the advantage of installing a small unit in a window to blow cooled air directly into a room. Compact houses might not require ducts and can keep cool with central-location installations.