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Evaporative Condensers

LSCE Evaporative Condenser EVAPCO distributed Clark Johnson Co

LSC-E Evaporative Condenser

 

LSC-E centrifugal fan forced draft condensers are recommended for a wide range of applications. LSC-E models are very quiet and ideal for applications where noise is a concern. In addition, sound attenuation packages are available to further reduce the sound levels.

 

The centrifugal fans can also operate against the static pressure loss of ductwork and are suitable for indoor installations, or those with inlet or outlet ductwork. These condensers are available in capacities of 26 through 1,142 ammonia tons (112 kW to 4920 kW).

   Design Features

     Maintenance Features

      Drive Systems

      Optional Equipment

        Unit Specifications

LSC-E Evaporative Condenser - Design Features

 

The LSC-E Evaporative Condenser product line is a highly efficient design constructed for long life and minimum maintenance and features EVAPCO's patented, high efficiency Thermal-Pak II ® Coil. It is the ideal choice for forced draft replacement applications, low sound and indoor installations.

Maintenance Features

 

Designed for easy maintenance, the LSC-E Evaporative Condenser leads the industry in maintenance friendly features. The three most critical areas for evaporative condenser maintenance are the basin, drive system and coil . The cold water basin is easily accessed from outside the condenser via large circular access doors. All drive system components are located in the dry, entering air stream for long life and can be serviced from outside the condenser. The exclusive Thermal-Pak II ® coil is designed for trouble free maintenance and long life straight from the factory.

Drive System

 

The LSC-E Evaporative Condenser features the highly successful EVAPCO V-belt drive system engineered for heavy-duty operation. All drive system components including the fans, motors, sheaves, and belts are located in the dry entering air stream and are suitable for the most severe duty evaporative condenser applications.

 

 

Fan Motors

 

All LSC-E Evaporative Condenser models utilize heavy-duty totally enclosed (T.E.F.C.) fan motors designed specifically for cooling tower applications. In addition to the standard motors provided on each evaporative condenser, EVAPCO offers many optional motors to meet your specific needs, including:

 

  • Premium Efficiency Motors
  • Multi-Speed Motors
  • Inverter-Ready Motors

 

The TEFC motors are mounted horizontally in convenient open area for easy routine service and under a protective cover in the dry entering air stream.fan motors EVAPCO distributed by Clark Johnson Cobelt drive EVAPCO distributed by Clark Johnson Co

 

Belt Drive

 

The belt drive system consists of multigrooved V-Belts with high lateral rigidity. The belts are designed for evaporative condenser service, and are constructed of neoprene with polyester cords. The belt drive is sized for 150 percent of the motor nameplate horsepower ensuring long and trouble free operation.

 

Centrifugal Fans and Drives

 

The LSC-E features forwardly curved centrifugal fan wheels constructed of hot-dip galvanized steel for strength and efficiency. All fans are statically and dynamically balanced and mounted in a hot-dip galvanized steel housing designed and manufactured by EVAPCO. The drive sheaves are located in the dry entering air stream for longer life and are accessible from the side of the fan and drive enclosure.

 

Forged Bearing Journal

 

The fan shafts used on all LSC-E models are standard with forged bearing journals. The competition’s design utilizes a two-piece fan shaft with welded end journals that is susceptible to rusting and eventual failure. The solid forged design of the LSC-E fan shaft provides durable long-lasting operation, free from premature mechanical failure.

Optional Equipment

 

The standard design of the EVAPCO LSC-E provides the customer with the easiest Evaporative Condenser to maintain in the industry. There are additional options which can make maintenance easier and extend the life of the Evaporative Condenser. These options are listed below.

 

  •     304 Stainless Steel Coil
  •     Stainless Steel Basin
  •     Extended Surface Coil
  •     Sound Attenuation
  •     Screened Bottom Panels
  •     Electric Heaters
  •     Electric Water Level Control
  •     Other Options

Unit Specifications

 

Furnish and install, as shown on the plans, an Evapco model _____________ evaporative condenser. Each unit shall have condensing capacity of _________ BTUH heat rejection, operating with ____________ refrigerant at _____ °F condensing temperature and _____ °F design wet bulb temperature.

 

Pan and Casing

 

The pan and casing shall be constructed of G-235 hot-dip galvanized steel for long life and durability. The heat transfer section shall be removable from the pan to provide easy handling and rigging. The pan/fan section shall include fans, motors and drives mounted and aligned at the factory. These items shall be located in the dry entering air stream to provide maximum service life and easy maintenaince. Standard pan accessories shall include circular access doors, stainless steel strainers, wastewater bleed line with adjustable valve and brass makeup valve, with an unsinkable foam filled plastic float.

 

Centrifugal Fan Drives

 

Fans shall be forwardly curved centrifugal type of hot-dip galvanized construction. The fans shall be factory installed into the pan-fan section, and statically and dynamically balanced for vibration free operation. Fans shall be mounted on either a solid steel shaft or a hollow steel shaft with forged bearing journals. The fan shaft shall be supported by heavy-duty, self aligning bearings with cast-iron housings and lubrication fittings for maintenance. The fan drive shall be V-belt type with taper lock sheaves designed for 150% of motor nameplate horsepower. Drives are to be mounted and aligned at the factory. Fan Motor _________ horsepower totally enclosed fan cooled motor(s) with 1.15 service factor shall be furnished suitable for outdoor service on _________ volts, _________ hertz, and _________ phase. Motor(s) shall be mounted on an adjustable base.

 

Heat Transfer Coil

 

The coil(s) shall be all prime surface steel, encased in steel framework with the entire assembly hot-dip galvanized after fabrication. Coil(s) shall be designed with sloping tubes for free drainage of liquid refrigerant and tested to 400 psig air pressure under water.

 

Water Distribution System

 

The system shall provide a water flow rate of not less than 6 GPM over each square foot of the unit face area to ensure proper flooding of the coil. The spray header shall be constructed of schedule 40, PVC pipe for corrosion resistance. All spray branches shall be removable and include a threaded end plug for cleaning. The water shall be distributed over the entire coil surface by precision molded ABS spray nozzles (1” x 1/2” orifice) with internal anti-sludge rings to eliminate clogging. Nozzles shall be threaded into a spray header to provide easy removal for maintenance.

 

Water Recirculation Pump

 

The pump(s) shall be a close-coupled, centrifugal type with mechanical seal, installed vertically at the factory to allow free drainage on shut down. _________ horsepower totally enclosed, motor shall be furnished suitable for outdoor service on _________ volts, _________ hertz, and _________ phase.

 

Eliminators

 

The eliminators shall be constructed entirely of PVC that has been specially treated to resist ultra-violet light. Assembled in easily handled sections, the eliminator blades shall be spaced on 1-inch centers and shall incorporate three changes in air direction to assure removal of entrained moisture from the discharge air stream. They shall have a hooked leaving edge to direct the discharge air away from the fans to minimize recirculation.

 

Finish

 

All pan and casing materials shall be constructed of G-235 heavy gauge mill hot-dip galvanized steel for maximum protection against corrosion. During fabrication, all panel edges shall be coated with 95% pure zinc-rich compound.

evapco distributed by Clark Johnson Co

Clark Johnson Company, Inc.       2016