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VAV Reheat with Radiant Panels (Sequence)

Posted: Thu Aug 02, 2018 9:12 pm
by Francisco_Contreras
Hi all,

If I have a VAV reheat system with radiant panels (modelled as radiator). How can I sequence them such that the radiant panels comes on first and then the reheat coil covers the rest of the heating load?

Thanks,
Francisco

Re: VAV Reheat with Radiant Panels (Sequence)

Posted: Fri Aug 31, 2018 10:23 am
by FrancescoMI
I would use a little bit different setpoint temperatures.
Suppose that the setpoint temperature for the radiant panels is 20°C. You can use 19.5°C as setpoint temperature for the VAV reheat coil. The VAV reheat coil will work only if the radiant system is not able to meet the 20°C setpoint temperature.

Re: VAV Reheat with Radiant Panels (Sequence)

Posted: Thu Nov 29, 2018 8:15 pm
by toemoss
I'd set the radiator controller setpoint a couple degrees higher than the VAV reheat, I think this would provide the results you want.