Specifications include, but are not limited to: A.Centrally ductedheat pumps, one or two air handler per outdoor unit.B.Indoor and outdoor units must be part of an AHRI matched system, defined by federal regulation 10CFR§430.2 as a central air conditioning heat pumpC.Compressor must be variable capacity (continuously variable)D.ASHP systems1.Single-zone ASHP systems with non-ducted indoor units(i.e. wall, ceiling, floor, etc.)2.Multi-zone systems ratedwith non-ducted indoor units3.Minimum HSPF of 94.COP @5°F>1.75(at maximum capacity operation) 5.SEER >15E.Heating System Integration6.Provide smart controls integration to keep hot water heating circulators off while heat pumps meet the load.7.Control boiler to stay off unless there is a call for heat