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ISEC-1
July 1997





INSTALLATION AND OPERATION
MANUAL

Evaporative Coolers
EC-40, -80, -120, -160, -220, -300, -400,
-500, -600, and -750







N O T I C E
Read These Instructions Before Installation

Upon arrival, inspect the unit for shipping damage and
completeness. If any part is missing or damaged, notify
the carrier immediately. Always refer to the unit’s serial
and model numbers located on the specification plate
when making an inquiry regarding maintenance

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CONTENTS Precautions .………………………………………………………………………..................... Page 2 Specifications ………………………………………………………………………................... Page 3 Unit Installation ………………………………………………………………………………….. 1. Evaporative Cooler ……………………………………………………...................... Page 3 2. Wiring …………………………………………………………………………………... Page 3 3. Water connections ……………………………………………………………………. Page 4 Operation 1. Standard Unit ………………………………………………………………………….. Page 4 2. Unit with automatic Drain Kit …………………………………………….

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SPECIFICATIONS Model (EC) 40 80 120 160 220 300 400 500 600 750 Dry Weight 110 176 225 271 310 373 634 726 845 1067 Operation Weight** 335 560 650 825 880 1135 1680 1930 2085 2635 Pump Cap/GPH req.* 270 360 540 720 720 810 540+ 630+ 630+ 630+ Cap/GPH @ Lift* 387 1135 1135 1135 1135 1100 1080 1080 1060 1060 Pump Lift/ft. 3 4 4 4 4 5 6 6 7 7 * These figures do not include the 3 to 6 percent bleed-off rate required to reduce scaling for standard unit. **Unit in operation, media fully saturated.

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TROUBLE SHOOTING GUIDE TROUBLE CHECK-OUT PROCEDURE AND CORRECTION Green Water……………………….. 1. Usually occurs the first few days of operation; media is being rinsed. Drain reservoir and refill with fresh water. After a couple of operations, green should disappear. The 3 to 6 percent bleed-off, for standard units, will maintain your clear water also. 2. If unit has been in service for a while, algae can grow on the media. It will not cause deterioration or rot, but may clog the passa