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EVO
ELECTRICAL CONNECTIONS
All of the operations must be carried out by qualified staff,
in accordance with regulations in force. For any electrical-
related procedure, refer to the electrical diagrams supplied
with the unit. We also suggest making sure that the
characteristics of the electrical network are suitable for the
absorption levels reported in the electrical data table.
Before carrying out any operation on
electrical parts, make sure the power supply
is disconnected. Check that the mains voltage
is compatible with the specifications of the
unit (voltage, number of phases, frequency)
shown on the unit rating plate. The supply
voltage must not fluctuate by more than ±5%
in relation to the rated value. The electrical
connections must be set up according to the
electrical diagram attached to the specific unit
and with the regulations in force.
MAINTENANCE
Maintenance operations must be carried out
exclusively by a manufacturer-authorised
assistance centre or by qualified staff. For
safety reasons, before carrying out any
maintenance or cleaning, turn the equipment
off.
FC66003554
Rev 01
Controller for units
USER MANUAL
IT IS strictly forbidden to reproduce this manual, even partially
I/O TABLE FOR THE BOARD
POWER SUPPLY
L
Phase
N
Neutral
INPUTS
I1
Room air NTC probe
I2
Water NTC probe
I3
Hot water NTC probe (with 4-pipe units)
I4
Not used
I5
Not used
IC
Common for NTC probes
+5
Not used
I6
Input for remote ON/OFF
I7
Input for remote SUM/WIN
I8
Input for remote ECONOMY
I9
Not used
I10
Not used
IC
Common for I6-I7-I8
SU - SU
Humidity probe
OUTPUTS
A1
Brushless fan modulation
Water valve modulation
A2
(cold with 4-pipe units)
A3
Hot water valve modulation (only with 4-pipe units)
CA
Common for 0-10V outputs
O1
Extra-low speed
O2
Low Speed
O3
Medium Speed
O4
High Speed
O5
Water valve (cold with 4-pipe units)
O6
Hot water valve (only with 4-pipe units) or heater
C1
Common for O1-O6 relay outputs
O7
Configurable signal output
C7
Common for O7 relay output
PORTS (FRONT OF BOARD)
A/B/GND
RS485 serial MODBUS protocol
+ / -
Display connection or second board
+ / -
Display connection or second board
(figure 23)
GB
24
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