Incoming water from the heat source is spread on the tower filling, by the nozzle. Air is blown at the same time from bottom to top by the fans. Thus it is ensured that a small amount of water is vaporized. This vaporization takes some heat energy from the remaining water. The cooling water accumulates in the tower pool and is sent to the heat source again.

1. LAYOUT
Layout of the RSK cooling towers should be chosen so that air absorption is not obstructed for any one of the fans. Top of the tower should not be lower than the wall if the tower is to be placed between walls. Such a layout will prevent capacity decrease due to absorption of outgoing warm and humid air from the tower.

2. INDOOR LAYOUT
Absorption and/or blowing channels are required in many indoor layout applications. Absorption channels are generally used in small devices, while for large devices, the room containing the device is used as the absorption plenum. Blow channel should normally be made all devices. Manufacture of service covers should not be forgotten when the channels are constructed. The channels should be designed so as not to exceed 125 Pa pressure drop and the electrical motor size should be increased by one.

3. CAPACITY CONTROL
Capacities of cooling towers vary much according to wet thermometer temperature or water input temperature. Capacity control according to these changing conditions can be made with the frequency converter and by adjusting the fan revolution or using a double speed motor.

4. MEASURE AGAINST FROST
Frost risk is not in question as long as the cooling tower is operated under a load. However it is necessary to empty the system water as a measure against frost, when the tower is turned off. A heater battery or electrical heater should be installed inside the tower if this is not possible. Also tower pipes and the feeder pipes should be heated with a heater tape.

5. WATER CONDITIONING
Solid materials remain in the system when the water in the cooling tower evaporates. The particles and biologic materials in the air also enter the system. These may result in calcification, corrosion, mud and biologic pollution in the tower. Water conditioning program should be applied in order to eliminate these problems. Applying bleed-off to the system from time to time is generally sufficient to prevent calcification and corrosion. On the other hand, biologic pollution can be eliminated with water conditioning program. The program to be applied should not damage the galvanized metal plate and the tower pool water should be kept between pH 6.5 and 8.5.

1. FILLING SECTION
This section where the heat transfer takes place, consists of filling, water distribution system and drift eliminators.
• Water distribution system: The water is distributed on the filling material through the PVC collector and PVC distribution pipes. Plastic nozzles fixed with elastic grommet are located on the distribution pipes. These ensure best distribution over the filling. They are not clogged and are cleaned easily, as they are very wide.
• Filling: The filling designed most efficiently from PVC material, allows for maximum contact between water and air. It also results in minimum air resistance.
• Body: Has long life against corrosion. The top section has been manufactured from hot immersion galvanized metal plate with electrostatic dust paint, as the lower section. Special liquid joints are used for sealing.
• Drift eliminators: Are manufactured from aluminum plate. Drift eliminators have a special design to ensure minimum air resistance and minimum drop leakage. Access to nozzles is easy, as they can be easily removed.

2. FAN SECTION
Lower section of the RSK towers consist of the fan, the motor and a V shaped water pool. The whole plate is manufactured from galvanized metal plate and weld is not used in 99%. The welded pieces are mounted after being galvanized.
• Cover: The sealed cover with a circular structure ensures easy access to the pool section. Thus the floater adjustment and the precipitate cleaning and dirt holder cleaning can be easily carried out.
• Filter: The absorption filter, which has been designed to prevent air absorption, is standard in all RSK Cooling towers. Frequent cleaning is not necessary as it has a wide surface. Can be washed easily when cleaning is necessary.
• Motor and belt pulley: The motors have been protected against outdoor weather conditions below the tower body, due to the position they have been mounted. The V belts are sized according to 20% higher than the power indicated in the motor plates. The belts are easily adjusted to their axes, the pulleys are of a special manufacture and can be mounted without driving and be dismounted without pulling.
• Fans: Forward inclined winged radial fans have been statically and dynamically balanced. They are mounted in a special manner in order to ensure silent operation.
• Durable design: Has long life against corrosion. The whole body has been manufactured from hot immersion galvanized metal plate with electrostatic dust paint. Special liquid joints are used in panel connections points for sealing. This reinforces durability, with its structure endurable against all kinds of tensions.