The Ministry of Culture and Heritage (MCH) has released a PDF covering the Heritage Equip fund:

Heritage Earthquake Upgrade Incentive Programme
Heritage EQUIP
Questions and Answers
Link to downloadable PDF:Heritage Earthquake Upgrade Incentive Programme QAs (D-0677836)

Additional Link to MCH for PDF:
http://www.mch.govt.nz/sites/default/files/Heritage%20Earthquake%20Upgrade%20Incentive%20Programme%20QAs%20%28D-0677836%29.PDF#overlay-context