To solve the problems of high energy consumption and high carbon emissions in building HVAC systems

this paper constructs a collaborative architecture of zero-carbon technologies including "photovoltaic-phase change energy storage-ground source heat pump-heat recovery"

establishes a dual-objective optimization model of carbon and energy

and develops an intelligent control strategy based on model predictive control. Verified by an engineering case of an office park in Shanghai

the system can reduce HVAC energy consumption by 53.0%

decrease carbon emissions by 61.9%

and achieve a photovoltaic absorption rate of 85%-92%

with a static investment payback period of 5.8 years and an internal rate of return of 16.5%. The research provides a technical path for the zero-carbon transformation of HVAC systems

with both economic and environmental benefits.