524 Mass. Reg. 2.7
2.7.1.2 Non-Fire-Resistive Construction
2.7.1.2.1 Delete: "2000 mm (79in.)" and Insert: "2100 mm (84 in.)".
2.7.2.1 Equipment in Machine Rooms
Delete entire paragraph and substitute: "No machinery, equipment, water lines, drainage lines, air conditioning units, radio transmitters, antennas, or any piping or wiring for equipment other than elevator equipment shall be located in or pass through the machine room, except as required by modification to 2.8.2.
All flammab le/combustib le liquids shall be kept in approved containers and secured in an approved flammable liquids locker. The amount stored shall be regulated by 527 CMR: Fire Prevention Regulations.
2.7.2.2 Maintenance Clearance
2.2.2.2 Delete: Entire paragraph and insert: "A clearance of not less than 450 mm (18 in.) shall be provided on all sides and above the elevator equipment. Basement traction type installations are exempt on the side facing the hoistway. Governors are to be no less than six inches from the adjacent wall or other equipment."
2.7.3.4.1 Add a new (e)
2.7.3.4.1(e) be identified with a sign that will read "ELEVATOR MACHINE ROOM NO STORAGE ALLOWED". The letter size shall be a minimum of % inch high and shall be of a contrasting color with that of the background.
2.7.3.4 Access Doors and Openings
2.7.3.4.1 Add a new (d):
The letter size shall be a minimum of % inch high and shall be of a contrasting color with that of the background.
2.7.3.4.1 Add a new (d):
The letter size shall be a minimum of % inch high and shall be of a contrasting color with that of the background.
2.7.3.4.3(b) Delete entire paragraph and Insert: "(b) of maximum width of "750 mm (30 in.)" and a maximum height of 750 mm (30in.)."
2.7.3.4.4 Delete and replace with:
2.7.3.4.4 Access doors for control spaces outside the hoistway shall conform to width and height requirements of Section 2.7.3.4.2.
2.7.5 Lighting, Temperature, and Humidity in Machine Rooms and Machinery Spaces
2.7.5.1 Lighting. Delete the words: "Where practicable". Add new additional sentence: "Motion or heat detecting devices used to turn (on or off) the lights in the machine room, pit, car, or the car top are prohibited."
2.7.5.2 Temperature and Humidity. Add: "A minimum temperature of 50°F, and a maximum temperature of 90°F shall be maintained."
2.7.6 Location of Machinery Spaces, Machine Rooms, Control Spaces, Control Rooms, and Equipment
2.7.6.1 Location of Machine Rooms and Control Rooms. After the last sentence add:
A permanent sign shall be mounted on the head jamb of the main floor elevator entrance, which shall read "MRL CONTROL ROOM LOCATED ON [ ] FLOOR," with the applicable floor listed. The letter size shall be a minimum of % inch high and shall be of a contrasting color with that of the background.
2.7.6.3.2 Delete and replace with:
2.7.6.3.2 The motor controller shall be located in a control room.
2.7.9 Lighting, Temperature, and Humidity in Machinery Spaces, Machine Rooms, Control Spaces, and Control Rooms
2.7.9.1 Lighting. In (b) delete the phrase "where practicable" as shown below:
2.7.9.1 Lighting. Add new paragraph after (b):
Motion or heat detecting devices used to turn (on or off) the lights in the machine room, pit, car, or the car top are prohibited.
2.7.9.2 Temperature and Humidity. Replace the first sentence as follows but otherwise retain the paragraph:
Machinery spaces, machine rooms, control spaces, and control rooms shall be provided with natural or mechanical means to keep the ambient air temperature in the range of 50° F to 90° F and humidity in the range specified by the elevator equipment manufacturer to ensure safe and normal operation of the elevator.
524 CMR 2.7