Elevator Equipment Room Ventilation Requirements

The system is required to be capable of maintaining temperatures within the range established for the elevator equipment 780 cmr 3005 2.

Elevator equipment room ventilation requirements.

The operating temperature shall be established by the elevator equipment manufacture s specification. Such vents shall comply with the following requirements. 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. Asme a17 1 the safety code for elevators and escalators requires machine room temperature to be as determined by the elevator manufacturer.

The room environment is also subject to regulations. Emergency and standby power systems and meet the combustion air requirements of the equipment. Anyone using the room should have enough room to remove replace inspect and maintain elevator equipment. 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.

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. 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. For example in california the ventilation system must keep the temperature below 104 degrees fahrenheit at all times. Where standby power is connected to elevators the machine room ventilation or air conditioning is required to be connected to the standby power source 780 cmr 3003 1 4.

2 27 2 1 the emergency or standby power system shall be capable of operating the elevator s with rated load see 2 16 8 at least one at a time unless other wise required by the building code. 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. The best way to accomodate ventilation for the machine room is to transfer air from adjacent conditioned space. Most building elevator mechanics and manufacturers maintain elevator machine rooms between 60 f and 80 f with 35 to 60 relative humidity.