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// CODE SNIPPET

933.0 Evaporative Cooling Systems

California Mechanical Code 2019 > 9 Installation of Specific Appliances > 933.0 Evaporative Cooling Systems
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933.1 General

Evaporative cooling systems, including air ducts and fire dampers that are a portion of an evaporative cooling system, shall be in accordance with Section 933.2 through Section 933.4.3. Evaporative cooling systems shall be provided with outside air as specified for cooling systems in Section 403.0.

933.2 Location

Evaporative cooling systems shall be installed so as to minimize the probability of damage from an external source.

933.3 Access, Inspection, and Repair

Evaporative coolers shall be accessible for inspection, service, and replacement without removing permanent construction.

933.4 Installation

An evaporative cooler supported by the building structure shall be installed on a level base and shall be secured directly or indirectly to the building structure, to prevent displacement of the cooler.

933.4.1 Modifications to the Supporting Structure

Modifications made to the supporting framework of buildings as a result of the installation shall be in accordance with the requirements of the building code. Openings in exterior walls shall be flashed in an approved manner in accordance with the requirements of the building code.

933.4.2 On the Ground

An evaporative cooler supported directly by the ground shall be isolated from the ground by a level concrete slab extending not less than 3 inches (76 mm) above the adjoining ground level.

933.4.3 On a Platform

An evaporative cooler supported on an aboveground platform shall be elevated not less than 6 inches (152 mm) above adjoining ground level.

Related Code Sections


933.0 Installation of Specific Appliances, Evaporative Cooling Systems
Evaporative cooling systems, including air ducts and fire dampers that are a portion of an evaporative cooling system, shall be in accordance ...
California Mechanical Code 2019 > 9 Installation of Specific Appliances > 933.0 Evaporative Cooling Systems
934.0 Installation of Specific Appliances, Evaporative Cooling Systems
Evaporative cooling systems, including air ducts and fire dampers that are a portion of an evaporative cooling system, shall be in accordance ...
California Mechanical Code 2016 > 9 Installation of Specific Appliances > 934.0 Evaporative Cooling Systems
405.0 Ventilation Air, Evaporative Cooling System for Health Care Facilities
[For OSHPD 1, 1R, 2, 3, 4 & 5] Direct evaporative cooling systems where the air directly contacts the wetted surface or spray shall be limited ...
California Mechanical Code 2019 > 4 Ventilation Air > 405.0 Evaporative Cooling System for Health Care Facilities
405.0 Ventilation Air, Evaporative Cooling System for Health Care Facilities
[For OSHPD 1, 2, 3 & 4] Direct evaporative cooling systems where the air directly contacts the wetted surface or spray shall be limited ...
California Mechanical Code 2016 > 4 Ventilation Air > 405.0 Evaporative Cooling System for Health Care Facilities
933.3 Installation of Specific Appliances, Access, Inspection, and Repair
Evaporative coolers shall be accessible for inspection, service, and replacement without removing permanent construction ...
California Mechanical Code 2019 > 9 Installation of Specific Appliances > 933.0 Evaporative Cooling Systems > 933.3 Access, Inspection, and Repair
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