Include vacuum relief valve, vacuum gage, and manual drain valve mounted on tank. Comply with NEMA ICS 2 and UL 508. NEMA ICS 6, Type 12 control panel, unless otherwise indicated. Some manufacturers may offer low-voltage controls. Edit subparagraph below if required.
Overload relay in each phase.
Indicate when back-up vacuum pump is operating. ASME construction, bronze body, with settings to match system requirements. Verify structural requirements with structural engineer. Construct concrete bases of dimensions indicated for vacuum pumps. Install vacuum pumps on concrete bases.