N540022B
N540022B
CP
L
N
+ A B -
A A B B -
A
B
EN - 17
CP occupancy contact input connection
On closing the contact connected to the CP input (ref.
A) the panels are placed into stand-by. If the contact is
open the units are active, if the contact is closed they are
deactivated when a key is pressed the
symbol flashes.
To connect the CP input in more than one PCB,
observe the polarity between external relay contact
and CP contacts as shown in the figure.
Connect the RS485 line of the wall-mounted remote
control to one or more (up ot a maximum of 30) fancoil
fitted with Electronic board (3301557) using a suitable
two-core cable for serial connections RS485 keeping the
power supply cables separate.
-
Chase out the wall in order to minimise the length of
the leads;
- complete the line with the supplied 120 Ω heating
element;
-
do not make "star" connections;
-
The RS485 cable connection is polarised, respect the
"A" and "B" indications on every periphery connected
(for connecting, it is preferable to use a shielded two-
core cable with a minimum thickness of 0.35 mm
2
);
- connect the + and - power terminals on the wall
mounted terminal block, 12 V DC, to the board on the
machine, respecting polarity.
Connections
contact CP
–
contact -
A
remote control terminal block
B
auxiliary relay
