nVent SCHROFF 10130-325, User Manual

Page: 32 / 51

Date: 2021/04/07 Page
: 32 of 47
4.2.3 Settings
The cold air temperature is detected by 2 temperature sensors. The temperature sensors are
mounted
in front of the 19” plane at different heights to compensate the temperature
stratification.
As a control variable for the opening behavior of the control valve, the temperature of the
lower ("cold bottom"), the upper ("cold top") or the average value of these temperature
sensors can be used.
In addition to the control via temperature sensors, it is also possible to set the opening ratio
of the water valve manually (in % opening ratio).
Fan control variables
SET

(S1) Control fans
The following parameters are available:

Differential Pressure

Manual
In manual mode, the fan speed (20 % - 100 %) can be set. If the control is via the differential
pressure sensor, the pressure can be set from -150 Pa to +150 Pa.