“USER’S MANUAL TO ANSI/ASHRAE/IESNA STANDARD 90.1-2007” says: “An HVAC zone is physically determined by the design of the HVAC system. It includes some number of thermodynamically similar spaces whose loads can be satisfied through use of a single thermostat (or other type of temperature control)”.
Does “whose loads can be satisfied through use of a single thermostat” mean that the temperatures and the thermal loads and gains of all the spaces which compose a HVAC zone have to be similar? How much “similar”? In the dynamic model can I consider 2 rooms in which there are two different thermostats but which have very similar internal temperatures and thermal loads and gains as part of the same zone?
Best Regards