Elevator sump pits

[MarkFMills]

Owner has a pit floor sloped to drain into adjacent room where there will be a sump pump. Does that make meet elevator and building codes ? My interpretation is no. Because the below code states it must be in the pit. Thank you.


ASME A17.1/CSA B44 requires that all elevator pits for elevators that have Firefighters’ Emergency Operation, be provided with a drain or sump pump. The pit drainage shall be designed to remove a minimum capacity of 3,000 gallons per hour (or 50 GPM) per elevator car.

 

[steveray]

sloped to drain into adjacent room

Sounds like it is in the pit....

 

[BN4537]

The code section provided does not say that it is required to be in the same room, it says it must be provided. If a sump pump is there and will work to drain the pit above 3,000 gallons per hour (or 50 GPM) per elevator car, it has been provided, whether it is in the same room or not.

 

[mtlogcabin]

First of all WELCOME to the forum

has a pit floor sloped to drain into adjacent room where there will be a sump pump

I believe your slope/drainage to the room the pump is located in should also be sized/designed to meet a 50 GPM minimum gravity flow. The intent of the code section is to limit water build up in the bottom of the elevator pit during a fire event.

 

[Tim Mailloux]

an elevator shaft has to be fire rated, if the pit is draining into an adjacent room how is the shaft rating maintained?

 

[classicT]

an elevator shaft has to be fire rated, if the pit is draining into an adjacent room how is the shaft rating maintained?

It is a non-issue. How would the fire go down, through the drain, through the pipe and into an adjacent room? Keep in mind that pipe is going to be full of water.

 

[bill1952]

It is a non-issue. How would the fire go down, through the drain, through the pipe and into an adjacent room? Keep in mind that pipe is going to be full of water.

I thought just an opening in the wall, no pipe, and had same thought as Tim. At least that's I got from OP.

 

[steveray]

I wouldn't say non-issue, but hilti has a system for that.....