Edition 10-2008a
138
UltraVent
Ultravent with relais control produced until 10/2006
Ultravent is switched on with ON/OFF switch (fan motor and light will be on);
Fan motor is controlled from contact of X 23 on I/O pcb (SCC units) or main pcb (CM units).
If cabinet door is open this contact is open and the fan motor runs on high rpm.
If cabinet door is closed this contact is closed as well and the fan motor runs on low rpm.