(1)
Equipment requiring periodic maintenance and forming part of a heating, ventilating or air-conditioning system shall be installed with provision for access for inspection, maintenance, repair and cleaning. (See Note A-6.2.1.6.(1)
(2)
Mechanical equipment shall be provided with guards so as to prevent injury.
(3)
Heating, ventilating or air-conditioning systems shall be protected from freezing if they may be adversely affected by freezing temperatures.