We are working on a very large, core and shell project that the owner will not share the tenant agreement with our team. The minimum code requirements are based on IECC 2012/ASHRAE 90.1-2010. We were instructed to design the dedicated outdoor air unit for the building (common and tenant) to accommodate variable refrigerant flow system. The common area HVAC system is a variable refrigerant flow system.

First the Code question…
Is it correct to assume that the baseline lighting is based on ASHRAE 90.1-2007 and proposed lighting is ASHRAE 90.1-2010 along with the new daylighting requirements in ASHRAE?

Second the tenant improvement question…
Is it correct to assume that the proposed mechanical system for the tenant is a variable refrigerant flow system?

I welcome your thoughts.