The work consists of removing two 30 ton HVAC chilled water units and one 7.5 ton and one 10 Ton split system units. The removed units will be replaced by two new 30 Ton and two new 7.5 Ton units. The removed units will not be replaced at their present location. All of the new units will be located in the attic of the head house. All of the new units will use chilled water from the existing chiller as their cooling source.