UM AER 01 N 1GB

English
51SysAer
Main menu Q0
Item
Screen code
Parameter Unit Min Fact. Max Description / Note
SERVICE
Economizer/3 dampers
Pi
Minimum opening
setting
Analog In. B2 / Manual
Manual
Choice of the mean to set the minimum Economizer opening when the unit is operating
in normal mode (not unoccupied). In manual, the set opening is directly a percentage. By analog input, the B2 input is used and must be configured.
Manual min. opening % 0 20 100 Displayed if manual is selected
Analog Input type
0-1V, 0-5V
0-20mA, 4-20mA
0-5V
Displayed if analog input is selected.
0-1V, 0-20mA and 4-20mA must be externally supplied. 0-5V can be generated using the 0-5V supply from the J9 connector of the PC board.
Winter start
Normal /
Closed
Normal
In winter start-up (unit set from OFF to ON), when this parameter is set to closed, the Economizer will stay totally closed until the room temperature reaches the setpoint.
Pj Smoke detection Closed/Open Closed
Economizer behaviour when smoke is detected (option). Open corresponds to 100%.
Supply air
temperature limitation
Pk
Enabling N/Y Y This function is active in summer and winter (including winter freecooling) (option). Setpoint °C 0 8,0 30,0
Minimum supply temperature
In summer, below this value, the Economizer is set to the minimum opening and the compressors are stopped. In winter, the Economizer closes to the minimum position and the hot water coil valve is open (option).
Differential °C 0 2,0 10,0
Temperature band to progressively close the Economizer (when open by freecooling or air quality in summer and winter) and stop the compressors (in summer)
Heat recovery
Pl
Enabling N/Y Y NA Differential winter °C 0 6,0 20,0 NA
Minimum damper opening
% 0 20 99 NA
Pm
Summer enabling N/Y N NA Differential summer °C 0 10,0 20,0 NA
Setpoint
compensation
Pn Enabling N/Y N See the Setpoint compensation part (option).