The Mechanical Systems shop maintains and services 111 air cooled screw chillers and 140 boilers.  We heat and cool approximately 8.5 Million square feet of interior building space.  We have a filter program in which we change filters quarterly.  This is part of our preventive maintenance program.  We maintain and service Trane, McQuay, York and Carrier brand chillers.  Our boilers are primarily Superior, Cleaver, Brooks, Les, Bernam, Rite and Sellers brands.  We also service and repair freezers, walk-in coolers, milk coolers and refrigerated drinking fountains.  We provide 24/7 response service.  All of this is taken care of by twenty technicians, most of whom are trained and licensed mechanical-journeyman or -masters.