Specifications include, but are not limited to: A. Substitute the use of VAV CHW systems as 1st choice when design of bldg allows & Variable Refrigerant Volume (VRV) heat pumps as 2 nd choice with Dedicated Outside Air Units in place of Unit Ventilators whenever possible. B. VRV systems shall have readable BACnet points on their equipment. C. HVAC design for renovations shall incorporate changes due to code requirements into the new design and contract documents. D. When it is deemed not practical to replace Unit Ventilators with VRV Units, the Engineer of Record shall document same in a report and submit to SAISD Program Manager, Facilities and Design Staff, Operations and Maintenance Staff for review and approval prior to proceeding with the design documents. E. Systems which do not meet the current energy code or are of a type that are no longer used shall be replaced. If the systems are not identified in the original scope, during the scope to budget, these items shall be identified with the SAISD Program Manager. F. Schools with existing 2 pipe chilled water/hot waters unit that are not to be replaced shall incorporate the following: 1. Existing two pipe systems that have HVAC renovations shall add an air cooled heat exchanger to expedite the change over from heating to cooling.
