AdobeAir MD524, MD628, UD960, US960, US980 User Manual

INDUSTRIAL DIRECT AND INDIRECT/DIRECT EVAPORATIVE COOLING

Engineer designed to satisfy your design requirements.

Modular Components

•Air Handling Modules in side, down or up discharge and single or dual inlet design.

•Evaporative Media Modules with standard 8” or Hi-Performance 12” media.

•Indirect Cooling Modules for added cooling with no moisture added (optional).

Durable Construction

•Galvanized steel with our exclusive POLYBOND® polyester epoxy powder based coating ensures years of dependable service.

Efficiency

Cost Effectiveness

•Competitive first cost combined with substantial energy savings over refrigerated air units results in quick payback. Plus, the simplicity of design allows low maintenance requirements.

Other Features

•Precision balanced blower wheel.

•Solid shaft for rugged durability.

•AdobeAir motors and pumps are U.L. Recognized.

•City of Los Angeles (C.O.L.A.) approved.

•AMCA Licensed ratings

•U.L. Classified

•U.L. Listed

•Choice of media modules allows cooling efficiencies tailored to your design requirements.

Dual Inlet				Single Inlet
Models MD628, MS628, and MU628			U.L. Classified	Models MD524 and MS524	U.L. Classified
Shown with 12” media modules DM120				Shown with 12” media modules DM080
Models UD980 and US980			U.L. Listed	Models UD960 and US960	U.L. Listed
Shown with 12” media modules UM120				Shown with 12” media modules UM080

AdobeAir, Inc. certifies that the evaporative air cooling products shown herein are licensed to bear the AMCA Seal. The ratings shown are based on tests and procedures performed in accordance with AMCA Publication 211 and comply with the requirements of the AMCA Certified Ratings Program.

SINGLE-STAGE INDUSTRIAL EVAPORATIVE COOLING

Direct Evaporative Cooling Process

Direct evaporative cooling exchanges sensible heat for latent heat, and follows upward along a constant wet-bulb temperature line on the Psychrometric

Chart. The result is a dry-bulb

temperature of the leaving air

(B) approaching the wet-bulb temperature of the entering air (A).

Standard and Hi-Performance Models

The flexibility of modular components allows selection of CFM and saturation efficiencies producing the sensible heat capacities needed to meet design requirements. For

many applications, our standard 8” media continues to be an economical choice, with an 80% saturation efficiency at 450 FPM. For more demanding design

conditions, our 12” media offers 90% efficiency at around 450 FPM.

MasterCool Evaporative Media

MasterCool evaporative media is constructed of special cellulose material, impregnated with

insoluble anti-rot salts and rigidifying saturants. The cross-fluted design continually directs water to the air-entering side, inducing a highly turbulent mixing of air and water for optimum heat and moisture transfer.

Direct Evaporative Cooling

Put simply, whenever water is evaporated, heat

is absorbed. This basic principle underlies the design of the MasterCool direct evaporative cooler.

High Quality Construction

Hot-dipped galvanized steel, welded for maximum strength is combined with our exclusive POLYBOND® finish that protects the whole system – cabinet

pans, distributor covers, louvers, and all other parts contacting water. The electrostatically applied polyester epoxy powder-based coating is cured at high temperature and is so durable that these models are backed by the best warranty in the industry.

Energy Efficient...

Environmentally Friendly

With no compressors or condensors, MasterCool evaporative coolers offer significant energy savings over mechanical refrigeration units; and, with no CFC’s, do not contribute to depletion of the ozone layer. Their air washing effect improves indoor air quality with fresh, filtered air constantly brought into the cooled space...forcing stale air out.

Comfort Levels

Not only does evaporative cooling lower the temperature in the space to be cooled, it also lowers the temperature you feel. Rapid air movement produced by the MasterCool increases skin evaporation which causes you to feel 3-5° effectively cooler than the temperature read from a thermometer. Evaporative cooling can provide effective temperatures acceptable in most commercial/ industrial applications throughout the world.

Typical Applications

The Industrial MasterCool is used for area cooling or spot cooling. In many areas it can replace or supplement mechanical refrigeration needs in agricultural, institutional, commercial, and industrial applications. Applications such as kitchens, laundries, gymnasiums, heat treating areas, and dry cleaning plants requiring large quantities of fresh air moving through the building are ideal candidates for evaporative cooling.

2-STAGE INDUSTRIAL EVAPORATIVE COOLING

Indirect/Direct Evaporative Cooling Process

In the indirect cooling stage, entering air is cooled along a horizontal humidity ratio line on the Psychrometric Chart (A to B) without adding moisture. In the next cooling stage, this air is further cooled along a new wet-bulb line (B

to C), resulting in a lower dry-bulb temperature of leaving air than can be achieved

with single stage direct evaporative

cooling alone.

Typical Configurations

Many configurations of 2-Stage Industrial MasterCool are possible. Typical field-assembled components include 2 or 3 Indirect Cooling Modules with Models MD/MS524 and 4 or 6 ICM’s with models MD/MS/

MU628 Contact your local MasterCool representative for assistance in sizing.

Models shown with three ICM’s at each inlet location.

The Indirect Cooling Module

Outside air is drawn into the ICM. A fan draws air through the inside of vertical fins (which have water running inside them). The air picks up heat and is expelled from the ICM while the fins are cooled by evaporation. Other outside air is drawn across the outside surfaces of the cooled fins, and is cooled without coming in contact with water. This cooled air, with no humidity added, then enters the direct evaporative section of the Industrial MasterCool for final cooling.

2-Stage Indirect/Direct Evaporative Cooling

2-Stage cooling allows you to use energy-saving evaporative cooling technology for design conditions where direct evaporative cooling alone is not adequate. A 2-stage cooler results in greater cooling power, less affected by higher ambient temperature and humidity.

In the indirect cooling stage, outside entering air is cooled sensibly reducing its total enthalpy. This

“precooled” air is then evaporatively cooled in the direct cooling stage, approaching its new, lower

wet-bulb temperature.

The end result is discharge temperatures near or even slightly below the wet-bulb temperature.

More importantly, these lower discharge temperatures translate into customer comfort at a fraction of the cost of refrigerated air conditioning.

Applications

KoolKalk...

Computer Aided Sizing

The sizing method described in this brochure can be used for general sizing of direct evaporative Industrial MasterCool units.

For more accurate sizing, and for sizing indirect/direct units, we recommend the use of KoolKalk... an IBM compatible computer program designed specifically for AdobeAir Evaporative Coolers. For more information please visit the AdobeAir, Inc. website at www.AdobeAir.com.

With its substantial increase in cooling capacity, the indirect/direct 2-stage Industrial MasterCool can replace mechanical refrigeration in many applications.