Electrical Wiring - Riello Condexa Pro Series Manual

ELECTRICAL WIRING

The injection pumps are piloted with PWM signal to work with constant DT.
SCH
J21
J21
J21-1 / J6-1 b
J21-5 / J6-2 bl
J21-4 / J6-8
h
J21-6 h
b
J21-3
1 2
0-10V
101 102 103104 105106107 108109 110
L N L
PC (*)
PB
L
0V (GND)
PWM
N
INSTALLING THE EXTERNAL TEMPERATURE PROBE (ACCESSORY)
The correct positioning of the external probe is fundamental for the proper functioning of the climate control.
The probe must be installed outside the building to be heated, at about 2/3 of the height of the north or north-west facade and
away from chimneys, doors, windows and sunny areas.
The probe must be placed in a smooth wall stretch; in the case of exposed bricks or irregular walls, a smooth contact area
should be provided.
The maximum length of the connection between the external probe and the control panel is 50 m. In case of connections with
a cable longer than 50 m, check that the value read by the card corresponds to a real measurement and use parameter 39 to
make any correction.
The connection cable between the probe and the control panel must not have joints; if necessary, it must be tinned and
adequately protected.
Any ducting of the connection cable must be separated from live cables (230V AC).
If the external probe is not connected, parameters 14 and 22 should be set to "0".
9
3 4 5 6 7 8 10 11 12 13 14 15 16 17 18
TA Modbus BUS 1 SB SS
h
J3-10
b
J3-4
g
J2-3
h
J3-9
b
J3-6
111 112 113 114 115
L N L N L N L N L
PI (ACS) PC (PS) AL AE (230V ~ 50Hz)
b
h
MO1
S E P W M BUS 2
0V (GND)
PWM
MO2
N
Condexa Pro
Key
SCH display PCB and controls
M01 Low voltage terminal
block, 1-10 V input
TA Room thermostat/ heat
request
EA Ignition electrode
Modbus Modbus output
SB Tank probe (acc.)
SS System probe (acc.)
SE External probe (acc.)
PWM PWM connection
Key
M02 High voltage terminal block
PB 2-way valve
PI Plant circulator
(DHW) Sanitary circulator
PC Thermal module circulator
PS System circulator
AL Alarm output
AE Electrical supply
11