Staircase Pressurization Fan

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Staircase pressurization fan. Stair case pressurization design calculation sheet. The pressurized air helps people escape the fire and firefighters battle the fire. In case of fire in a high rise building a stair pressurization fan spf uses clean outside air to pressurize the air in stairwells. Ensure that all the precommissioning checks are carried out successfully.

Stairwell pressurization systems. Staircase pressurization calculationspdf free download as pdf file pdf text file. A system must be installed which is capable of automatically and safely supplying the two air flows. Provide staircase pressurization fan 9500 cfm for each stair.

Box made from galvanised metal sheet with insulation class m1. Hvac air conditioning question added by mohamed hamed mep manager al mansouri 3b construction llc. Stair case pressurization fanomarxls. Stairways are fire escape routes nowadays stairwells have better fire ratings than the rest of the building.

Staircase pressurization fan what is the equation to calculate the air flow and static pressure for fan. The smoke detector shall be located at the entrance of each exit staircase at every storey including the non residential floors. At the same time excessive air flow to the staircase must be prevented so that children or less able occupants can open the access door to the staircase during an evacuation. Stair pressurization due to the relative cost of the associated mechanical systems and architectural space issues related to providing exterior balconies and stair vestibules the stair pressurization system is the most widely selected design option.

Stairwell pressurization fan calculation excel sheets 1062018 102300 pm if there is a fire it causes smoke to spread everywhere so we must keep the smoke away from the escape route. Thermoplastic impeller with ajustable pitch angle with the exclusive mns. Run the fan for 5 minutes. Where pg ii building is provided with a mechanical ventilation system or pressurisation system for its staircase storey shelter an automatic smoke detection system complying with ss cp 10 shall be installed.

Start the fan by inducing a fire signal from the fire alarm control panel. The staircase pressurization system is made of a axial fan box frequency converter and air sensor pressu re. Chapter 7 mechanical ventilation and smoke control systems 711 general a where air conditioning system is provided in lieu of mechanical ventilation system during emergency all the requirements specified in this code for the mechanical ventilation system shall apply to the air conditioning system.