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Recommended settings:
In the diagram above, the crosses (x) indicate the time slot during which the function should not be active.
The night cooling time slot must start after 00:00 and end before 12:00.
Week (Monday...Friday) (days of occupancy):
(1) Identify the occupancy slot of the room (for example 8:30 ... 19:00).
(2) Respect a delay of at least 1h00-1h30 between the end of the night cooling and the beginning of the period of occupation
of the room (end of night cooling = 7h00).
(3) Start the beginning of night cooling around midnight. Too early = risk of getting a building too cool in the morning (with a
start of the function while the outside temperature is still too hot = poor performance of night cooling), too late = risk of
limited effectiveness of night cooling.
(4) The normal speed must not be programmed during periods of night cooling or occupancy of the building so that the night
cooling function can be activated, and the CO2 control remains functional. It can possibly be the rest of the time.
(5) The night cooling period should not be activated during the day or during the occupancy period.
XIV.5.
Adjustment of ventilation setpoints and CO2 management
The principle of CO2 control is to manage the speed of the fans (and therefore the airflow rate) according to the level of CO2 in the
air in the room. The higher the CO2 level, and therefore the higher the occupancy rate, the faster the fans turn, and therefore the
higher the airflow (air renewal). Comfort and air quality are maintained at all times.
The adjustment of the ventilation setpoints consists in associating a minimum speed set ("reduced speed" set parameter) with a
minimum (measured) CO2 level, and a maximum speed set ("normal speed" set parameter) with a maximum (measured) CO2 level.
These 2 couples make it possible to build the following control law:
MS-CDF-019 – Manufacturing Nr: 220001→
EVERSKY
Version B
Update: 2022/06/14
™
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Troubleshooting
