40
EN
8.1 Important information prior to the electrical
connection and installation
Potential-free relay output
The relay is potential-free. Control valves and controllers that re-
quire a different supply voltage can also be connected (e.g. 24 V).
One side of the relay contact should be set to the respective control
voltage (e.g. +24 V) instead of [
L
] in this case, see page 44.
Only switch extra-low voltage with basic insulation
Only extra-low voltages (ELV) with basic insulation may be
connected and switched.
Installation materials
The DuoFern Room Thermostat 9485 is intended for flush
mounting. We recommend installation in a deep 58 mm
flush-mounted box or in an electronic socket.
Length of insulation stripped:
6 mm
All leads must be stripped to 6 mm.
i
