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4.
Electrical connection
The mains power supply is connected direct to terminal (X1) in the control panel of the ventilation unit in
the following way:
VentR:
Loosen the four screws keeping the control panel and remove it. Take the connection cable through the PG
gland and connect it to the terminal X1.
VentC 2/4:
To gain access to terminal X1 open the door beside the control panel. It is now possible to remove the side
cover panel which is fastened by four screws. Take the connection cable through the PG gland and connect
it to the terminal X1.
VentC 6:
The six screws holding the cover beside the control panel are loosened and the cover is removed. Take the
connection cable through the PG gland and connect it to the terminal X1.
The mains connection can be 1N~ PE 230V or 2N~ PE 400V. The standard ventilation unit from the factory
has a mains power supply of 2N~ PE 400V.
Maximum consumption in a VentR ventilation unit
1N~ PE 230V
P
VentR
[kW]
2
1,2
2,3
4
6
3,1
Maximum consumption in a VentC ventilation unit
1N~ PE 230V
VentC
P
[kW]
2
1,1
2,2
4
3,0
6
Earth Leakage Circuit Breaker
If an earth leakage circuit breaker (ELCB) is used as additional protection, it must be of the type that trips
out when earth fault currents with DC content (pulsating DC) occur. The earth leakage circuit breakers must
be marked with the following symbol:
Connection of protected earth
Concerning resistance to static electricity it is recommended that the cabinet of the MMI STCU be
connected to a protected earth. Possibly the same for the flow-chart cabinet STLD.
Installation and service manual
I
Fuse
[A]
[A]
9,8
10
16,8
20
24,0
25
I
Fuse
[A]
[A]
8,8
10
15,8
20
23,0
25
NOTE: Observe local power supply company regulations!
Version 2.5
2N~ PE 400V
P
I
[kW]
[A]
1,2
4,9
2,3
8,4
3,1
12,0
2N~ PE 400V
P
I
[kW]
[A]
1,1
4,9
2,2
8,4
3,0
12,0
13
Fuse
[A]
10
10
16
Fuse
[A]
10
10
16
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