Preemptive fan evaporative condensers, as with the similarly executed evaporative tower series, have higher efficiency and simplified maintenance due to the positioning of the motor and fan. All W-tech evaporative condensers are PED certified.
Assembly
Factory assembled
Capacity
–
Certifications
2006/42/EC; (Machinery Directive ); PED Directive 2014/68/EU
2014/30/EU; (Electromagnetic Compatibility)
2014/35/EU; ( Low Voltage)
UNI EN ISO 12100:2010 (Safety of machinery)
ISO 9001:2015; CE Marking
Configuration
CounterFlow
Availability
All over the world
EVAPORATIVE CONDENSERS
An evaporative condenser condenses a refrigerant gas from a gaseous state to a liquid. By traveling along a coil from top to bottom sprayed with water with air in countercurrent, the refrigerant gas condenses and changes phase. Medium-large capacity refrigeration systems are usually water-condensed, especially if they use ammonia as a refrigerant. It is essentially a hybrid between an air-cooled condenser and a water-cooled condenser that uses heat rejection principles to follow an evaporative process.
The choice of a water-cooled condensing unit such as W-tech evaporative condensers over air-cooled units is simple:
Consistency of performance
during the year thanks to lower condensation temperatures
Greater thermal efficiency
during the winter/summer months
Optimal performance
thanks to the use of falling recirculating water with counter-current air
Lower electrical absorption
compared to an air unit
PRODUCT SHEET
CONSTRUCTION FEATURES
W-Tech CAP series, axial forced evaporative condensers, are manufactured and assembled in accordance to our Quality System certified by ISO 9001.
STRUCTURE & ASSEMBLY
The standard unit is constructed of sheet metal panels type Magnelis® (steel, zinc, aluminum, magnesium) panels to grant the maximum level of surface protection. Comparable empirically to a galvanized sheet with over 1000 g/m2 of zinc. The single panels, after the phase of cutting and folding, are assembled with AISI 304 (A2-70) on request AISI 316 (A4-80) e guarnizione in butyl mastic highly adhesive reinforced with polyester mesh inside to guarantee great shape stability and resistance to temperature variations. During the assembling of the structure, welding operations are not foreseen (self-supporting). The coloring of the sheet metal type Magnelis® is a RAL 9006.
WATER BASIN
The basin section is constructed with sheet metal panelling Magnelis® ZM310 thick sheet metal and is equipped with removable AISI 304L anti-cavitation type filter (protecting the secondary circuit pump) and water make-up valve with brass/stainless steel body stainless steel or polypropylene float ball. All the unit connections are in galvanized steel (AISI 304L on request). Water pump is made in cast iron, with a motor protection degree of IP 54, and placed outside basin structure.
HEAT EXCHANGE COIL
Standard heat exchange coil is made of smooth carbon steel (AISI 304L on request) tubes (finned on request) of suitable diameter and thickness, following our proprietary design. Coil is hot-dip galvanized according to UNI EN ISO 1461:2009 to ensure a perfect corrosion protection. After that, coil is tested in accordance to PED-CE rule.
Coil is delivered filled with nitrogen at a pressure of 3 bar.
WATER DISTRIBUTION SYSTEM
Water is evenly distributed by a piping system inside the machine made of PVC with sheet metal distribution box Magnelis®. Spray nozzles are of suitable diameter to prevent any clogging and are made in ABS and easily replaceable in case of maintenance.
Pipes connecting water pump to internal distribution pipework are made in PVC, easily removable during circuit cleaning, as for the most recent sanitary rules (anti- legionella).
VENTILATION SYSTEM
(MOTORS + FANS)
The ventilating unit is located in the basin section, housed on a galvanized steel structure fixed to the frame that supports the entire unit.
Axial fans are built with blades in high efficiency glass fiber reinforced polypropylene (PPG), hub in aluminum, compass and bolts in galvanized steel. Protection fans grids are made in galvanized steel. Motors, IE3 efficiency class, with mechanical protection IP56 tropicalized, F insulation class, continue service S1, B3 form and automatic condensate drain are directly spliced to axial fans (direct coupling). Motors are suitable to use together with frequency inverter (VSD-Inverter) 30-50 Hz.
Electric motors are in accordance with CE 2019/1781 norm.
The terminals for power connection and the connection of any extras optional (anti-condensation heater and ptc thermistor) are inside the terminal box of the electric motor.
DRIFT ELIMINATORS
Drift eliminators are made in PVC (PP on request) and divided in various sections to facilitate their removal in case of replacement or inspection of ventilation and water distribution system. The used drift eliminators allow a passage of drops equal to 0.001% of the droplets present at the entrance, removing water loss, potential aerosols drift that might contain Legionella bacteria.
TEST
All components are supplied assembled. Each unit, prior to delivery, undergoes hydraulic testing to ensure that there are no water leaks in the tank, and electrical testing to verify that the electric motors have a power draw in line with the nameplate data.
CATALOGS AND TECHNICAL DATA
Catalog list.
CERTIFICATIONS
ENTERS OUR WORLD
W-TECH
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