HVAC Air Distribution SystemDampers
Standards this line is built to
The designations below are cited by the products on this page. A specification is written in these, not in product names, so each one is set out with what it governs. Progress Horizon Trading supplies this line as an authorized distributor across Saudi Arabia.
UL 555
Fire dampers: the listing that proves a damper closes and holds back fire for its rated period.
NFPA 90A
Installation requirements for air conditioning and ventilating systems, including where fire and smoke dampers are required.
NFPA 92
Smoke control systems: the design and testing of systems that keep smoke out of escape routes.
EN 1366-2
The European fire resistance test for fire dampers in service installations.
EN 15650
The product standard for fire dampers in building ventilation, the basis for CE marking them.
AMCA 500-D
The laboratory method for testing dampers: air performance and, critically, leakage. Leakage class is what a smoke control or energy calculation depends on.
UL 555S
Smoke dampers, rated by leakage class and by the temperature at which they must still operate.
EN 1366-10
The European fire resistance test for smoke control dampers.
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AMCA 511
The certified ratings programme for air control devices: dampers and louvres carrying a verified rather than a claimed rating.
SMACNA HVAC Duct Construction Standards
The North American reference for how ductwork is built: gauge, reinforcement and sealing against pressure class. What a duct submittal is checked against.
UL 181
Factory-made air ducts and air connectors: the listing a flexible or fabricated duct carries.
ASHRAE 90.1
The energy standard for buildings: fan power limits and efficiency requirements that constrain equipment selection.