9.1
Opening the control box
m
The safety instructions specified in section 1.2 must be observed!
The unit must be fully isolated from the mains power supply before all maintenance and installation work or
before opening the terminal compartment! The electrical connection must only be carried out by an authorised
electrician according to the following wiring diagrams.
Observe yellow label on the casing!
– Opening the control box
Note: Do not forcibly bend the snap-in hooks, as otherwise there is a risk of breakage!
The control box cannot be opened when the fan unit
ò
!
9.2
Electronic control board
The electronic control board enables various type-specific modes of operation, such as e.g. interval, overrun, humidity
and presence.
The board is located in the jet water-proof casing and holds the plug pins for the electrical connection with the casing.
9.3
Parallel operation of multi-speed fans
m
The direct parallel switching of the switch inputs is possible!
Exception: Electronic types may be directly connected in parallel at highest level (time input). The direct parallel swit-
ching of lower levels remains excluded. Indirect parallel switching is possible by means of decoupling via relay contact.
Operation with lighting, see chapter 9.
m
DANGER
m
NOTE
IMPORTANT NOTE
+
Fig.34
Open
ò
Fig.35
Close
ò
m
WARNING
19
Fan Unit ELS-V..
Installation and Operating Instructions
EN
