![]() Technician says, it is single phase, so he thought there is no chance to change the wrong direction! I open the terminal and changed the rotation. But I switched off the fane and checked the blade direction. Rechecked the flow feels air discharging. There is only maximum 12 ft distance from the fan. Place a tissue paper to see the capacity of air drawing.no effect. Primarily I went to 71st floor and opened the chute door. RE: exhaust fan not sucking the air from garbage room moideen (Mechanical) Add or increase the amount of outside air in the corridors. Additional fan(s) to serve the middle and lower portions of the garbage chute. I'd recommend adding a ground floor exhaust fan for the garbage room. At 71 floors, if a chute door near the top looses its seal of gets stuck open, the fan is going to pull air from the indoor corridor before it pulls from the garbage room. This would also explain why when the fan is running you are not getting air flow in the garbage room. Also if the chute doors are getting stuck open, you are pulling garbage odors right past them. ![]() If the seals around the doors are bad (or do not exist), then I am not surprised you have problems. So you're pulling garbage exhaust up through the chute to the roof (with the chute being the path of the exhaust air?) and you have access doors on the chute so people can dump their garbage.Ĭheck the seal and closing mechanism on the chute doors.
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