Auxiliary Connections - Riello NexPolar Series Installation And Technical Service Instructions

INSTALLATION
2.13.1

Auxiliary connections

TErMINal BloCK x2
Terminal block
X2
1
1
2
RS485
2
3
3
4
5
6
7
5V dry contacts
8
9
10
11
12
13
13
14
15
Resistive inputs
16
Ω
17
18
18
19
20
Triac
21
230 VAC
22
23
23
24
Outputs
12VAC 25
PWM 26
Outputs 12 VDC - 20 mA
27
28
29
Relay
30
230 VAC - 5 A Output
31
31
32
32
33
PE
33
(*) optional, to be used in case of cascade operation of the units.
Initials Description
Digital inputs
DI#01 Remote On/Off: this contact cannot be configured. If open the unit is on, if closed the unit is off.
Remote Cooling/Heating: this contact cannot be configured. If open the unit is in Cooling mode, if closed it is in
DI#02
Heating mode.
Remote Comfort/Eco: this contact cannot be configured. If open the unit is in Home mode, if closed it is in
DI#03
Away mode.
Safety switch: this contact is normally closed. It is configured with parameter 501 (for further details, see
DI#04
parameter list).
DI#05 Customisable contact: it is configured with parameter 502 (for further details, see parameter list).
DI#06 Customisable contact: it is configured with parameter 503 (for further details, see parameter list).
DI#07 Customisable contact: it is configured with parameter 504 (for further details, see parameter list).
DI#08 Customisable contact: it is configured with parameter 505 (for further details, see parameter list).
Digital outputs
DO#08 Digital output configurable with parameter 506 (for further details, see parameter list).
DO#09 Digital output configurable with parameter 507 (for further details, see parameter list).
CCN slave unit
1 2
CCN+
CCN+ / WUI B+
Earth CCN
CCN-
CCN- / WUI B-
DI#01 - On/Off Remote
DI#02 - Remote Cooling/Heating
DI#03 - Remote Comfort/Eco
DI#04 - Safety switch
DI#09 - Flow switch (standard)
DI#05 - Customizable
DI#06 - Customizable
DI#07 - Customizable
SW7
DI#08 - Customizable
SW8
DI's# - Earth
AI#01 - DHW boiler probe (optional)
AI#02 - Water temperature probe (*)
AI#03 - Room air probe (optional)
AI#04 - External air probe (optional)
Earth
DO#06 - DHW diverter valve
DO#07 - Electric heating element EH#1 / Boiler On - Off
DO#08 - Customizable
DO#09 - Customizable
KM09
Neutral
Neutral
WUI +12V
WUI 0V
AO#03 - Variable speed pump control line PWM
AO#03's - Variable speed pump control earth
DO#04 - Not utilized
DO#03 - Additional circulation pump On/Off (fixed speed)
DO#01 - Main circulation pump On / Off
Neutral
Neutral
Earth
Remote control panel
WUI
3
12V B- OV
Polarity
24 25
SW1
SW2
SW3
SW4
FS
SW5
SW6
KM07
KM08
KM03
KM01
26
B+
Parameter
Function
sfsw typ
Cust sw5
Cust sw6
Cust sw7
Cust sw8
DHW-S
CHWST
iat type
oat type
AB
Y
B
A
custout1
custout2
L1 N
X1
Terminal
block
Nb
P501
P502
P503
P504
P505
P510
P511
P506
P507