VAV Reheat with Radiant Panels (Sequence)

[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

[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.

[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.