
20
WARNING
Make sure that the mains supply to the unit is disconnected before performing any installation, service, maintenance or
electrical work!
WARNING
The installation and service of the unit and complete ventilation system must be performed by an authorized installer and in
accordance with local rules and regulations.
5.4 Precabled electric connections
The unit must be earthed.
The units are wired internally from factory.
Unit comes pre-wired with:
- mains supply cable (3-core: brown, blue, yellow/green).
- speed selection cable, for connection to CTRL-S accessory (4-core: green, brown, yellow, white).
Factory settings: speed 1 set at 40%, speed 2 set at 70% and speed 3 set at 100%.
Fig. 5.j
Electric connections
Fig. 5.k
CTRL-S
(accessory on request)
I
I I
YELL
O
W
-GREEN
BL
UE
BROW
N
N
L
WHITE (S3)
YELL
O
W (S2)
GREEN (GND)
BR
O
WN S1)
CTRL-S
L
1
1
1
L
L
S1 S2 S3
II
I
FILTER RESET
SUPPLY
CONTROL