Hello All,
I am new to Design builder. I am trying to model an Exhaust Air Heat pump (EAHP) within Design builder. As I understand, the EAHP takes the sucks in the heated air that entered the zone through the windows/openings n each zone. Then the heat from the sucked air is exchanged and is used to heat the water, that in the end is used for radiator heating/floor heating in each zone.
For air from outdoor into the zone, I have "Natural Ventilation" checked ON in each zone. I am using 5 AC/H in each zone. Also, in each zone (under the Detailed HVAC system), I have added an extract fan to extract the air to the Heat pump. In order to model EAHP, I used ASHP from the design builder. But the model only takes air from the outdoor, not from the zone (shown in the attached picture)
How do I model the Exhaust Air Heat Pump in Designbuilder?
