• 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

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.

INSTALLATION KIT Chain kit and hardware included for easy installation. MOTOR Two speed motor for optimum comfort. BLEED-OFF KIT Ensures consistent performance by minimizing scale build up. U.L. LISTED Three pronged grounded plugs for safety. WARRANTY 10 year limited warranty. Accessories (Sold Separately) WINDOW FILLER KIT MODEL #RK228 Expandable color coordinated filler fits windows from 26 to 38 inches wide. It’s easy to install and adds a finishing touch around the cooler grille. Available f

Heavy-gauge steel construction for maximum strength; ArcticCircle.® Affordable. Efficient. Convenient. REMOTE CONTROLLED WINDOW COOLERS Specifications Industry Model Standard Series Rating HP** Speed Phase Amps*** RC50W 5000 1/2 2 1 9.2 RC45W 4500 1/3 2 1 7.3 RC40W 4000 1/3 2 1 7.3 RC30W 3000 1/8 2 1 3.6 * Industry Standard Rating is a numerical index for use in comparing units of different manufacturers. ** All models are 120 Volts, 60 Hz *** Blower motor (high speed) and pump RC45W 4,500 cfm R

Features REMOTE CONTROL Easy to use. Allows operation from anywhere in the room. COOLING PAD Natural aspen pads provide excellent cooling comfort. CONTEMPORARY GRILLE DESIGN Adjustable louvers for directional air flow. INSTALLATION KIT Chain kit and hardware included for easy installation. MOTOR Two speed motor for optimum comfort. BLEED-OFF KIT Ensures consistent performance by minimizing scale build up. U.L. LISTED Three pronged grounded plugs for safety. WARRANTY 10 year limited warranty. Acc

WARRANTY - 1-year l imited warranty. Specifications P500A 550 cfm 8" blower Blower Motor 3-speeds for optimum comfort Electrical 120 Volts, 60Hz, 2.1 amps Dimensions (H x W x D) 32%" x 19" x 14%" Water Capacity 5 gallons Area Cooled* Up to 250 sq. ft. Performance will vary depending on temperature, relative humidity, ceiling height, interior heat load, and other factors including the level of cooling desired. Ideal for any room at home or in the office, the MasterCool® Portable P500A c

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

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