Usually plenum system has its own control unit and is connected with smart home a limited number of signals. The main parameters of the system (temperature and air flow) are set at the start and usually do not change. With the ventilation system is somewhat different. Sometimes it makes sense to implement control algorithms and integrating them into one degree or another with the system Smart home. The standard example in any 'intellectual' apartment is the inclusion of light and exhaust fan in the bathroom on a motion sensor, and extract the maximum power in the smoking room and the kitchen with sensor triggering air quality.
Air conditioning (cooling from above) In an ideal air conditioning only works in the hottest time of year, and turns off when the temperature outside 'calls' to include heating systems ventilation. Eye-opener for the hosts tend to become bulky wall control panels with air conditioning, dissonant with any proposed designer electroadjusting series. So make sure that the Smart Home systems designers built into the project thermostats with special buttons and control units for air conditioners. Unusual for a Russian alternative to air conditioners has recently become who came from North Europe's idea of a panel of cooling ceilings. The general principle is the same as that of warm water floor, only the coils are bred on the ceiling and the water they use a temperature of about +15 C. All this does not make noise, not blowing and not much burden pocket bills.