ENGLISH
6.3
Accessibility
The appliance must be easily accessible for service/maintenance work. In particular, the false ceiling housing the appliance
must have an inspection hatch of an adequate size to allow access to the electrical/electronic parts and filters. In this way,
the appliance will not have to be removed from the false ceiling for either routine maintenance operations (filter replacement)
or some special operations (e.g. replacement of a motor fan or electronic controller).
6.4
Electrical box inputs
Fig. 9A
1. Remote control panel.
2. Modbus.
3. Boost switch connection.
4. Power supply.
5. Pre-heater (to connect the pre-heater, it is necessary to open the electrical box
and make the connection via the dedicated two-pole terminal block (refer to the
connection diagram in figure 10).
Fig. 9B
6. Thermal actuator (bypass open).
7. Thermal actuator (bypass closed).
7
Electrical connections (fig.10)
10
PE
MAINS
220-240V
L
~50Hz
N
2
3
4
5
Wire
colour
RD=red
code:
WH=white
BK=black
YE= yellow
BK=blue
BN=brown
GNYE=yellow
42
1
220-240V
~50Hz
BN
VCC
WH
GND
GN
D+
YE
D-
9
B
6
7
GNYE
BN
BU
BU
BN
1.
Mains 2 poles switch
2.
Pre-heater
3.
Dry contact (remote switch/relay)
4.
Remote HMI
5.
Modbus
1 2
A
3
5
4