Elevator Equipment Room Ventilation Requirements

Vided to operate an elevator in the event of normal power supply failure the requirements of 2 27 2 1 through 2 27 2 5 shall be complied with.

Elevator equipment room ventilation requirements.

Such vents shall comply with the following requirements. The operating temperature shall be established by the elevator equipment manufacture s specification. The room environment is also subject to regulations. The area of vents in the hoistwayor the elevator machine room and the smokehole shall be not less than 31 2percent of the area of the hoistwaynor less than 3 square feet 0 28 m2 for each elevator car whichever is greater.

The system is required to be capable of maintaining temperatures within the range established for the elevator equipment 780 cmr 3005 2. Emergency and standby power systems and meet the combustion air requirements of the equipment. Ventilation rates for storge room 0 12 cfm ft2 0 cfm person electrical equipment rooms 0 06 cfm ft2 0 cfm person and elevator machine rooms 0 12 cfm ft2 0 cfm person are are now included in table 6 1 62 1 2007 whereas 62 1 2004 did not include these spaces in table 6 1. Asme a17 1 the safety code for elevators and escalators requires machine room temperature to be as determined by the elevator manufacturer.

Anyone using the room should have enough room to remove replace inspect and maintain elevator equipment. The air supply and exhaust shall be located so air does not short circuit. When solid state equipment is used to operate the elevators the elevator equipment room shall be provided with an independent ventilation or air conditioning system to prevent overheating of the electrical equipment. Elevator machine room will only need ventilation to comply with the code requirement something similar to energy mandatory t 24 in california which requires 15 cfm sq ft.

Most building elevator mechanics and manufacturers maintain elevator machine rooms between 60 f and 80 f with 35 to 60 relative humidity. The best way to accomodate ventilation for the machine room is to transfer air from adjacent conditioned space. Rooms must be ventilated sufficiently to remove heat gain from equipment operation. For example in california the ventilation system must keep the temperature below 104 degrees fahrenheit at all times.