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What if autosizing produces unmet hours for the design days ?

asked 2017-06-19 08:45:35 -0500

OS-user-AT gravatar image

updated 2017-06-23 07:55:10 -0500

I have set up an OS model with complete autosizing for 7 design days. I would like to achieve zero unmet hours for the design days. However, when increasing heating and cooling capacities manually, there seems to be little effect or even convergence problems during warming-up. Also the OS unmethours troubleshooting reporting measure failed, i.e. crashed.

What's your advice ?

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answered 2017-06-21 18:08:00 -0500

BilalMaarouf gravatar image

Trying changing the supply air flow rate, the setpoint schedule, and marginally increase the reheat delta T (if any). One of those should reduce the unmet hours.

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Asked: 2017-06-19 08:45:35 -0500

Seen: 27 times

Last updated: Jun 19