Plant mode
An internal datapoint "Plant_Mode" from the plant mode strategy modules is decoded to provide the required damper output signals, according the table below.
Plant mode |
outside air damper |
exhaust air damper |
0 = off |
closed |
closed |
1 = optimum start |
auto |
auto |
2 = night cycle |
auto |
auto |
3 = night purge |
auto |
auto |
4 = occupied period |
auto |
auto |
5 = extended operation |
auto |
auto |
6 = delayed switch off |
auto |
auto |
11 = duty cycling |
closed |
closed |
20 = frost protection |
closed |
closed |
21 = fan failure |
closed |
closed |
30 = fire override |
closed |
closed |