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 fi ns (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 evapor

1 . 0 Package # Single Phase Motor Blower RPM @ 1725 Motor RPM / Sheave Turns Open ., 1 1VL34 5/8 252 265 279 292 305 318 332 345 358 372 385 EL114 ., 1 1VL40 5/8 318 332 345 358 372 385 398 411 425 438 451 EL110 1., 2 1VL40 7/8 318 332 345 358 372 385 398 411 425 438 451 EL112 ., 1 1VL44 5/8 372 385 398 411 425 438 451 464 478 491 504 ESH2411 1., 2 1VL44 7/8 372 385 398 411 425 438 451 464 478 491 504 EL685 1., 2 1VP50 7/8 451 464 478 491 504 518 531 544 557 571 584 686 Three Phase Motor Blower

24 24 13/16 13 2 15/8 4 2. 445/8 48 14.8 1. Drain is 3/4” male hose thread. 2. Water service can be left or right for 1/4” tubing. 3. 7/8” knockout for running electrical service. Electrical Specifications HP Speed Phase Voltage Amperage NEMA Frame Shaft Diameter Motor Kit # . 1 1 115/230 12.5/6.2 56 5/8 EJ006 . 2 1 230 5.9 56 5/8 EJ020 . 1 3 208-230/460 3.0/1.5 56 5/8 EJ883 1 1 1 115/230 15.1/7.5 56 5/8 EJ007 1 2 1 230 7.3 56 5/8 EJ021 1 1 3 208-230/460 3.6/1.7 143T 7/8 EJ665 1. 1 1 115/230 14.

• 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. Effi ciency • Choice of media modules allows cooling efficiencies tailored to your design requirements. Engineer designed to satisfy your design requirements. Cost Effectiveness • Competitive first cost

• Performance ratings include the effects of evaporative media in the airstream. • Belt tension should be 20 pounds for “A” section belts. • Performance shown is for installation type B: Free Inlet, Ducted Outlet. MD/MS/MU 628 or UD/US 980 Sheave Selection Motor HP Browning Bore Blower RPM / Sheave Turns Open MasterCool Part # 5 4 . 4 3 . 3 2 . 2 1 . 1 . 0 Package # Single Phase Motor Blower RPM @ 1725 Motor RPM / Sheave Turns Open 1 1VL40 5/8 230 240 249 259 268 278 288 297 307 316 326 EL110 1.

1 A95* A95* A95 11130 245 10720 254 10230 263 828 2 1 A95* A95* A95 12250 270 11890 278 11460 286 838 3 2 A97 A97 A95 14020 309 13720 316 13350 323 858 5 2 A97 A97 A95 16620 367 16390 371 16080 378 898 7. 2 A100* A100* A95 18100 406 18100 418 628 with two DM120 or 980 with two UM120 — 12” Media 908 1 1 A95* A95* A95 9680 216 9080 226 8530 237 913 1. 1 A95* A95* A95 11080 248 10540 256 10080 265 918 2 1 A95* A95* A95 12190 273 11700 280 11260 288 928 3 2 A97 A97 A95 13950 312 13510 318 13130 325

Determine design sensible heat load (Btuh) 3. Determine leaving air temperature (LAT): LAT = DB1 - [(DB1 - WB ) * EFF] where EFF ‘ 0.80 for 8” media or 0.90 for 12” media 4. Determine CFM required: CFM = 0.925 * Sensible Heat Load (T1 - LAT) 5. Determine the cooler(s) required: Refer to the specifi cation / air fl ow charts on next page. 6. Use KoolKalk to account for various losses: This will result in more accurate sizing. Motor Sheave Selection 1. Determine the external static pressure of the

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 hi

Cleaner, using less water...Better. Features EXTEND PAD LIFE - Saves money, time and maintenance. REDUCE WATER USAGE - Conserve natural resources and save money. REDUCE MINERAL BUILD-UP - For clean, fresh air. ELECTRONIC TIMER AND TEST BUTTON - For increased accuracy and manual activation. Cooler Pads With & Without CleanMachine Specifications Available in 120 Volt and 240 Volt models Operating Time Water Capacity Dimensions Product Package 6 Pack Master Carton The CleanMachine cycl

Cleaner, using less water...Better. Features EXTEND PAD LIFE - Saves money, time and maintenance. REDUCE WATER USAGE - Conserve natural resources and save money. REDUCE MINERAL BUILD-UP - For clean, fresh air. ELECTRONIC TIMER AND TEST BUTTON - For increased accuracy and manual activation. Cooler Pads With & Without CleanMachine Specifications Available in 120 Volt and 240 Volt models Operating Time Water Capacity Dimensions Product Package 6 Pack Master Carton The CleanMachine cycl