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Hi, there. I’ve met a problem when I try to simulate a seven-story building with EnergyPlus. I used ‘zone group’ object, because the five stories in the middle are exactly the same (as below). But some zones did not converge even after 100 warmup days. If I change it in sketchup, put the three stories together, like: Meanwhile, in 'zone group' object in energyplus, the ‘zone list multiplier' of middle floor is still 5. The converging problem disappear. So my question is, can I use the modle in second picture to simulate this seven-story building? The results such as energy consumption will be correct? Or there are other ways to solve the converging problem? (changing convergence tolerance values or maximum warm up days didn't work) Thank you!

Hi, there. I’ve met a problem when I try to simulate a seven-story building with EnergyPlus. I used ‘zone group’ object, because the five stories in the middle are exactly the same (as below). But some zones did not converge even after 100 warmup days. If I change it in sketchup, put the three stories together, like: Meanwhile, in 'zone group' object in energyplus, the ‘zone list multiplier' of middle floor is still 5. The converging problem disappear. So my question is, can I use the modle in second picture to simulate this seven-story building? The results such as energy consumption will be correct? Or there are other ways to solve the converging problem? (changing convergence tolerance values or maximum warm up days didn't work) Thank you!