9
Fan
The function of
the fan
The fan runs continually to circulate the air inside the room. Regulation of the fan
revolutions is defined by the temperature of the return air.
•
Below 25 °C
The fan funs at minimum revolutions
•
Over 25 °C
The fan revolutions will increase
•
At 30 °C
The fan will reach its maximum speed of revolution
If a smoke alarm (accessory) is triggered, the fan will stop immediately, irrespective of
the temperature.
The fan is monitored with the assistance of a pulse generator fitted in the fan.
Back-up-function
RBS 800 can also be used as back-up unit for other cooling units that are responsible
of the primary cooling.
In back-up mode will both the fan and the damper be hindered in operation because of
the set point.
The set point can be set between 25 °C and 35 °C. The settings for back-up condition
has to be set on the control board, where dip switch no. 6 must be put on ON, see more
about this in section ”Communications options”, page 15.
Return air temperature
2.0 • 01.12.2004
910002 • Version
