Commercial Kitchen Exhaust Hood Damper

Hvacquick csl series elbow duct silencer. Balancing dampers streivor air systems balanceaire internally adjustable balance damper for kitchen ventilation hoods is the first ever ul 710 listed variable volume low profile damper with independently adjustable opposed blades that can be locked unlocked and adjusted from the inside of the damper through the hood. Nfpa 96 5 3 4 2 508 11 3 2 actuating temperature.

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Commercial kitchen exhaust hood damper. First it seems that building code here in nj does not allow for an inline damper to be installed i think. Part ii addresses commercial hoods and kitchen ventilation. Exhaust hoods with and without exhaust dampers are covered by these requirements. Some kitchens are similar to those found in homes while others are much more complex in terms of size and system components.

Superior exhaust flow rates. As a result a hood installed over cooking appliances that are not in use can have its exhaust airflow reduced by as much as 90. Each hood can be operated in a range from 10 to 100 of its design exhaust airflow. I d like to install a damper somewhere but i m running into two issues.

Used to reduce the noise of any inline exhaust fan kitchen exhaust systems. Simultaneously the mbds make individual damper adjustments to vary the amount of exhaust airflow through each hood. There is only one practical application for installing modulating dampers in high temperature grease ducts over kitchen hoods serving commercial cooking equipment. Luckily my clients trust me and declined to order a huge 1600 cfm kitchen exhaust fan and settled on a 3 stage fan with a maximum of 400 cfm.

Many commercial building inspections include some sort of kitchen. Fire safety within kitchen ventilation systems in not just a matter for the system designer or system installer. The rigid elbow provides an efficient turn and at the same time maximizes sound absorption. The actuation device shall have a temperature rating not to exceed 286 f 141 c.

Etl listed to canadian safety standards etl sanitation listed and built in accordance with nfpa 96. A high rise building in an urban setting with a kitchen having multiple hoods totaling over 10 000 cfm that are located on a lower level where there is no other way to exhaust the effluent other than design a single chase and duct. Etl listed for use over 450 f 600 f and 700 f cooking surface temperatures provides flexibility in designing kitchen ventilation systems. 1 1 these requirements cover type i commercial kitchen exhaust hoods intended for placement over commercial cooking equipment.

Kitchen hood exhaust systems understanding and addressing the special fire risks inherent in commercial kitchen ventilation systems preface kitchen exhaust systems continue to feature prominently in commercial building fire events. A 4 hood can operate at 150 cfm ft or 600 total cfm. The fire damper shall be listed for such use or be part of a listed exhaust hood with or without exhaust damper. Understanding the technical components of a commercial kitchen exhaust hood will help the commercial inspector better identify defects and work with specialty consultants or.

1 2 exhaust hoods with and without exhaust fire actuated fire dampers are covered by these requirements.