Code of Massachusetts Regulations
524 CMR - BOARD OF ELEVATOR REGULATIONS
Title 524 CMR 35.00 - Safety Code For Elevators And Escalators A17-2004 And The Massachusetts Modifications Of That Code
Part 3 - HYDRAULIC ELEVATORS
Section 3.7 - MACHINERY SPACES, MACHINE ROOMS, CONTROL SPACES, AND CONTROL ROOMS
Current through Register 1531, September 27, 2024
Delete Section 3.7 "preamble" and replace with:
Hydraulic machines, motor controllers and/or motion controllers are not allowed in a hoistway or pit and shall be located in a machine room.
3.7.1 Location of Machine Rooms
After the last paragraph add a new paragraph as follows:
"When it is not possible to locate the machine room adjacent to the hoistway, in addition to all normal requirements, the following provisions shall apply:
(a) "The oil pipeline shall have a minimum of schedule 80."
(b) "The pipe shall have no fittings, bends or welding in it from the hoistway to the machine room."
(c) "The distance from the hoistway to the machine room shall not exceed three meters (ten ft.)."
(d) "The oil line pipe shall be visible for inspection after installation."
(e) "A over speed (rupture) valve shall be installed on the jack casing."
(f) "Two-way voice communication shall be installed between the car and the machine room."
(g) "If machine room ventilation is accomplished by the used of a horizontal duct, the duct shall have the same fire-rating as the hoistway, and contain an exhaust fan powered from a normal and an emergency source activated by a thermostat or fire alarm initiating device in the machine room. Make-up air supply when needed shall be as described in 524 CMR 35.002.1.4 (4)."
Add a section:
3.7.1.11 Location of Machine Rooms. When it is not possible to locate the machine room adjacent to the hoistway, in addition to all normal requirements, the following provisions shall apply:
(a) The oil pipeline, from where it leaves the machine room to where it enters the hoistway, shall have a minimum of schedule 80.
(b) The pipe shall have no fittings, bends or welding in it from the hoistway to the machine room.
(c) The distance from the hoistway to the machine room shall not exceed three meters (ten ft.).
(d) The oil line pipe shall always be visible for inspection.
(e) Two-way voice communication shall be installed between the car and the machine room.
Add a new 3.7.2 Clearance Around Hydraulic Machines
Hydraulic elevator power units shall have a minimum of two feet clearance on at least two sides of the unit; the other two sides shall be a minimum of two inches from the machine room walls or other units. If this cannot be obtained, an oil cooling system shall be installed."
