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30440 Agoura Rd.
Agoura Hills, CA 91301 USA
Toll Free: (855) 223-2665
coolboss.com
Cool Boss
Portable Evaporative Air Cooler with
™
Swing Louvers
Installation and Operation Manual
Manual Revision A — April 2025 — Manual P/N 5150082
Model CB-19SL
⚠
DANGER
Read the entire contents of this manual before using this product. Failure to follow the instructions
and safety precautions in this manual can result in severe injury or death. Make sure all other operators
also read this manual. Keep the manual near the product for future reference.
By proceeding with the
setup and operation of the Cool Boss CB-19SL, it is agreed that the contents of this manual
are fully understood and the owner/operator assumes full responsibility for the use of this
product.
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Table of Contents
Related Manuals for BendPak COOL BOSS CB-19SL
Summary of Contents for BendPak COOL BOSS CB-19SL
- Page 1 Keep the manual near the product for future reference. By proceeding with the setup and operation of the Cool Boss CB-19SL, it is agreed that the contents of this manual are fully understood and the owner/operator assumes full responsibility for the use of this...
- Page 2 Manual, P/N 5150082, Revision A, April 2025. Copyright. Copyright © 2025 by BendPak Inc. All rights reserved. No part of this manual may be reproduced, adapted, translated, or transmitted by any means, electronic or mechanical, for any purpose or in any form, without prior written permission of BendPak Inc.
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Page 3: Table Of Contents
Maintenance Log ......28 Setup ..........9 Introduction This manual describes the Cool Boss CB-19SL Portable Evaporative Air Cooler with Swing Louvers, which has been designed to keep homes, shops, or workplaces cool and comfortable, even on the hottest summer days. -
Page 4: Shipping Information
900 chemicals identified by the State of California to cause birth defects or reproductive harm. ALWAYS use this product in accordance with Cool Boss BendPak’s instructions. For more information go to www.P65Warnings.ca.gov. -
Page 5: Liability Information
Always remove the plug from the electrical receptacle by pulling on the plug itself, not on the power cord. • BendPak recommends making a thorough inspection of the product at least once a year. Replace any damaged or severely worn parts, decals, or warning labels. Save these instructions! -
Page 6: Frequently Asked Questions
26°F, (14°C), and the fan blows the cooled air in the desired direction. Q: How much air does the Cool Boss CB-19SL cool? A: Airflow: ≈6,840 cfm (194 cmm). Cooling area: ≈1,076 ft... -
Page 7: Specifications
Specifications Model CB-19SL Specifications Dimensions (A x B x C) 43 in. x 27 in. x 66 in. (1,092 x 686 x 1,651 mm) Fan Diameter 19 in. (483 mm) Media Dimensions (H x W x D) 39 in. x 14 in. x 6 in. (990 x 350 x 150 mm) Motor 110VAC/ 60 Hz / 1 Ph / 6.7A Weight Empty... -
Page 8: Components
Components Cool Boss Evaporative Air Cooler P/N 5150082 —Rev. A—April 2025... -
Page 9: Setup
Setup Cool Boss Set-up Steps: 1. Unbox 2. Install the Casters 3. Install the Media 4. Install the Handles 5. Determine the Cool Boss location 6. Fill the reservoir 7. Connect to power Tools Required for Assembly: • Phillips Screwdrivers •... - Page 10 Lock the two rear Casters by pushing down on the larger pedal. Pushing down on the small pedal releases the lock. See illustration below. Have an assistant help set the Cool Boss back upright and onto its Casters. Install one Handle to each side of the Cool Boss using the provided screws, as shown in the illustration below.
- Page 11 Finding a Location for the Cool Boss: Find a suitable location for the Cool Boss (hot air to rear, cooling area to front). The Cool Boss should be indoors, near an appropriate water source, and a power outlet protected by a GFCI circuit breaker. It should also be located in a low-traffic, well-ventilated area.
- Page 12 Filling the Water Reservoir: Model CB-19SL water capacity: ≈ 15 gal. (57 liters) ⚠ Use only cold, clean water. Do add detergents or additives of any kind. CAUTION ⚠ CAUTION Fill the Water Reservoir to maximum capacity before first use. Failure to do so will prevent the low water shutoff from engaging and the fan from starting.
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Page 13: Connecting To Power
Option 2: Auto-fill Hose Connection. Connect to the Water Reservoir Inlet on the left rear corner of the unit using a standard 3/4 in. hose that is rated to 28 to 99.5psi / (2 to 7 kg/cm ) maximum water pressure at the location. See illustration below. -
Page 14: Extension Cords
⚠ DANGER All electrical work must be accomplished by a licensed Electrician in accordance with national and local electrical codes. If a licensed Electrician is not used, the warranty is voided and everyone who uses the cooler will be put in danger of injury or, in rare cases, death. -
Page 15: Operation
Operation IMPORTANT NOTICE! Fill the water reservoir to maximum capacity before first use. Failure to do so will prevent the low-water shutoff from engaging and the fan from starting. ⚠ WARNING The Cool Boss should only be operated by authorized, trained personnel. This includes reviewing and understanding the Operation Manual and Safety Labels on the unit. - Page 16 Operating the CB-19SL: Control Panel • Swing Control – Rotary Switch On/Off. Initiates the Swing Louver left-right movement. • Water Pump – Rotary Switch On/Off. Applies power to the Water Pump, providing water to the Spray Bar, which then distributes it over the Cooling Media.
- Page 17 Rotate the Fan Speed Switch to LOW, applying power to the Fan. Turn the Water Pump switch to the ON position. Once the top 30% of the Media is saturated, Verify the fan is operating and cool air is beginning to move through the Cooler exhaust.
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Page 18: Maintenance
Maintenance ⚠ DANGER Disconnect the unit from its power source before performing any maintenance! Verify the unit is locked out from power and cannot be energized while maintenance is being performed. If the shop or organization has Lockout/Tagout policies, make sure to implement them before servicing the Cool Boss. - Page 19 ⚠ WARNING Disconnect the unit from its power source before performing any maintenance! Verify the unit is locked out from power and cannot be energized while maintenance is being performed. If the shop or organization has Lockout/Tagout policies, make sure to implement them before servicing the Cool Boss. Remove and retain the Fasteners securing the Media Retainers and then remove the Retainers and Media.
- Page 20 Dry the Media before attempting to reinstall in the Cool Boss. Applying gentle pressure, put the Media back into its Retainer and then place it in the Cool Boss. Gentle pressure may be required to move the Media pad and Retainer into place. Storing the Cool Boss 1.
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Page 21: Troubleshooting
Troubleshooting ⚠ This Evaporative Cooler uses electrical energy. If the shop or organization has WARNING Lockout/Tagout policies, make sure to implement them before performing any Troubleshooting. Issue Probable Cause Action to Take • Check the power supply. Control Panel • No power. -
Page 22: Parts Diagram
Parts Diagram Item Qty. Part Number Description Screw Housing Control Panel Fan Blade Caster Media Air Inlet Grille Oscillating Frame Grille Flat Washer Spring Washer Motor Motor Bracket Retaining clips Water Inlet Plug Power Toggle Switch Media Retainers Handle Cool Boss Evaporative Air Cooler P/N 5150082 —Rev. -
Page 23: Labels
Labels Cool Boss Evaporative Air Cooler P/N 5150082 —Rev. A—April 2025... - Page 24 Cool Boss Evaporative Air Cooler P/N 5150082 —Rev. A—April 2025...
- Page 25 Cool Boss Evaporative Air Cooler P/N 5150082 —Rev. A—April 2025...
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Page 26: Maintenance Log
Maintenance Log Cool Boss Evaporative Air Cooler P/N 5150082 —Rev. A—April 2025... - Page 27 Maintenance Log Cool Boss Evaporative Air Cooler P/N 5150082 —Rev. A—April 2025...
- Page 28 30440 Agoura Rd. Agoura Hills, CA 91301 USA CoolBoss.com 2025 BendPak Inc. All rights reserved.
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