Marley AV - Cooling Towers

Overview

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Details:

• Most models ASHRAE 90.1 compliant
• OSHA compliant
• Rugged G235 galvanized steel is standard with S300 series stainless steel as an optional upgrade to part or the entire tower structure
• Integral louvers are also standard for zero-water splashout and superior winter operation
• 5 year mechanical warranty

Available:

Worldwide

Related Information:

• Brochure
• Engineering Data and Specifications
• IOM Manual

AV Water Distribution System

• Gravity flow distribution system. Easy, nonrestrictive maintenance. Basin covers are standard.
• Marley Spiral Target polypropylene nozzles for consistent, predictable water distribution.
• Marley MX75 thermoformed PVC film fill is suspended from the upper tower structure by heavy galvanized steel support members providing clearance between fill and sloping self-cleaning collection basin floor for easy basin cleaning. Integral eliminators and louvers keep circulating water confined to fill over a wide range of air flow rates.

AV Structure

• Crossflow configuration — easier and safer to inspect, service and maintain.
• G-235 heavy galvanized steel. Also available in 300 series stainless steel.
• Factory-assembled modules, including fan cylinders — makes final field installation hassle-free.
• Large Access Doors — the generous plenum region in the AV tower is nonconfining, permitting quick visual inspection of cold water basin, internal structure, drift eliminators and mechanical equipment.

AV Air Movement System

• Streamlined eased inlet fan cylinder assures full area, low turbulence airflow through the cylinder.
• Heavy duty aluminum alloy fan– adjustable pitch blades.
• 7.5 hp and larger fans are driven by a high quality, solid backed, multi-grooved neoprene and polyester v-belt thru a corrosion resistant aluminum alloy fan sheave.
• Heavy duty, self-aligning, grease lubricated roller bearings selected with an L10 design life of 50,000 to 100,000 hours support the fan and shaft.
• TEFC fan motor, 1.15 service factor, variable torque design, specially insulated for cooling tower duty.
• The AV air movement system is guaranteed against failure for a period of five full years from date of shipment. Includes fan, fan shaft, bearings and mechanical equipment support.

Key Benefits

• Ideal Replacement Designed to easily replace forced draft blower towers or other space sensitive installations.
• Low Energy Costs Highly efficient propeller fans consume half the energy of blowers. And, gravity water distribution provides further savings thru lower total pump head.
• Easy Access Large, 30″ x 42″ access doors on both endwalls and “stand-up? plenum area help make the AV easy to service with generous access to the basin and mechanical equipment. No •paint can lid? access hatches.
• Low Piping Costs Single inlet connection for easy and fast installation.
• Long Life Rugged G-235 galvanized steel frame, quality factory assembly. (Optionally available in 300 series stainless steel.)
• All Season Reliability Integral louvers eliminate splash-out so towers operate virtually ice-free in the winter.
• Real World Design Designed for severe wind, seismic, shipping, operating and live loads.
• Tough MX75 High-Performance Fill Highly efficient cellular drift eliminators and honeycomb louvers integrally molded within the fill sheets.
• Aluminum-Alloy Axial Fan Adjustable-pitch fan blades permit maximum utilization of rated horsepower•allows field adjustment to optimize tower performance.
• Rugged Fan Motor TEFC 1.15 service factor, severe duty, cast iron motor designed to Marley specifications for cooling tower duty. Specially insulated for extra protection from moisture.
• Five-Year Mechanical Warranty Five-year mechanical equipment warranty.

Optional Equipment and Accessories

Enhance your AV tower installation with options and accessories that will improve the operation, longevity, maintenance, and accessibility of your cooling tower.

• Stainless Steel Distribution Basin
  Corrosion is usually most aggressive in the hot water distribution basins—stainless steel provides assurance of long, trouble-free service life.
• Marley Control System Package
  Factory-wired, factory-installed, factory-tested control center in NEMA 3R enclosure mounted on tower casing near access door. Complete with thermostat controller for single or twospeed motors to maintain chosen cold water temperature.
• Inlet Trash Screens
  Factory-installed, U-edged, galvanized wire mesh screens work in concert with the internal cellular louvers.
• External Service Platform
  Provides easy access to distribution system without increasing installed height of tower. Platform with OSHA guardrails is Factory Mounted, eliminating installation labor cost and time. Field-installed ladder with optional safety cage for easy access.
• Stainless Steel Collection Basin
  All collection basin parts in the wetted area— including structural members projecting in the basin, assembly and attaching hardware, and all basin options, are heavy-gauge Series 300 stainless steel.