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V03 EN, Fundamentals
Ultravent with Bus control (since November 2006)
No main ON-OFF switch. Ultravent will start run-
ning when SCC/CM is switched on.
Connect bus cable at fan motor at electric units, at
ignition box at gas units;
Ultravent for single units have only one bus con-
nection terminal, those for Combi Duo have two
bus terminals;
Only pcb with two bus terminals are send when you
need a replacement pcb for Ultravent (42.00.050)
LED on Ultravent pcb
After connecting the Ultravent to the bus system the SCC/CM must be switched off and on again
to detect the new connection.
If the LED is permanent ON
the bus connection is not
established.
Blinking of the LED
means bus connection ok.
SCC units
The SCC must run on at least software version
01.07.11
(earlier versions do not support the bus control)
Software Version 01.07.11 - 02.01.02
Ultravent light will be ON or OFF as the SCC is switched ON or OFF.
Fan motor will continue to run even after the cooking process (time or core probe) is finished and
stops only when the cooking process is de-selected or the unit is switched OFF.
From version 03.01.01
Ultravent light will be ON only after selecting a cooking process.
Fan motor starts after the cooking process is started and continues for another 30 minutes after the
coking process is stopped. at the same time the light will be switched OFF.
Same applies for any Cleanjet process.
CM units
The CM must run on at least software version C1.07.01
Ultravent will start and stop as the CM is switched ON or OFF.
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.
1
2
Halogen 11,5V
RS 485
1
RS 485
2
N (blue)
Fast (black)
Slow (brown)
PE (ye/gn)
PE (ye/gn)
L1 (brown)
N (blue)
3
2
1
4
3
2
1
MOTOR
NETZSPANNUNG
Power input
brown
blue
1
2
3
4
230V
1
2
3
4
100 -127V
F1
F2
2,5AT
F3
0,2AT
Trafo Primär
2,5AT
Netzeingangsicherung
Power input fuses
