| Gabriela, 1 - In real world practice, it’s sometimes difficult to match the heat output from the heat pumps with a varying load and this often leads to heat pumps chattering or shutting off on high limit control. The same happens inside TRNSYS. Good practice is to have the heat pumps charge a storage tank and have the fan coils draw from the storage tanks. That way their varying requirements don’t need to match up instantly. 2 - please use a different tank model than Type 60. We have archived that model as it can lead to strange results. 3 - use small timesteps (~ 1-minute) and pipes to help control a quickly changing system. Large timesteps lead to a multitude of problems in TRNSYS. Jeff - TESS Sent from my iPhone On May 2, 2020, at 12:58 PM, gabriela vlad via TRNSYS-users <trnsys-users@lists.onebuilding.org> wrote:
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