Atag i28C Technical Guide

230V Control Block (230V live output, aqua blue)
If a live, neutral or earth wire is required for an external clock/programmer these can be taken from the (L) live, (N) Neutral or (E) earth 230V live
output aqua blue connections on the 230v control terminal block.
If an external 230V clock/programmer is used, then a switched live is required from the control(s) to connect to the 230V control aqua blue
connector in position (SwL) Switched live to fire up the boiler.
230V Control Block (SwL Switched live, aqua blue)
If a 230V room thermostat is used, then a switched live is required from the control(s) to connect to the 230V control aqua blue connector in
position (SwL) Switched live to fire up the boiler. This could be in series after the clock/ programmer to the room stat, then to SwL on the 230V
control aqua blue connector.
External pump (230V live output, green) optional extra
If an external pump needs to be controlled and switched on when heating mode is operating on the boiler, 230v power (outlet) can be used to
power an external pump on the system. (optional extra plug required).
Terminal block LV iC-Range
ATAG Outdoor sensor 1kOhm*
n.a. = not applicable
ATAG Zone connection
OpenTherm or ON/OFF thermostat
n.a. = not applicable
DHW sensor T3
External safety contact
terminal block
PE
N
PE
L
N
L’
230V out
230V Control
PE
N
L
230V in
N
L
230V out
DO NOT CONNECT 230 VOLT
* Mounting on north – north/east facade of the house. Prevent outside influences such as snow, ventilation air or chimney heat.
230V live output
to pump
E
N
L
E
L
N
SwL
230V out
230V Control
E
N
L
230V in
N
L
230V out
230V control terminal block iC-Range
N: Neutral
L: Live
E: Earth
N: Neutral
L: Live
E: Earth
L: Live
N: Neutral
SwL: Switched live 230V live input only!
E: Earth pump
N: Neutral pump
L: Live pump
230V live output
230V out
230V in LNE
Terminal block LV iC-Range
ATAG Outdoor sensor 1kOhm*
n.a. = not applicable
ATAG Zone connection
OpenTherm or ON/OFF thermostat
n.a. = not applicable
DHW sensor T3
External safety contact
terminal block
PE
N
PE
L
N
L’
230V out
230V Control
PE
N
L
230V in
N
L
230V out
DO NOT CONNECT 230 VOLT
* Mounting on north – north/east facade of the house. Prevent outside influences such as snow, ventilation air or chimney heat.
230V live output
to pump
E
N
L
E
L
N
SwL
230V out
230V Control
E
N
L
230V in
N
L
230V out
230V control terminal block iC-Range
N: Neutral
L: Live
E: Earth
N: Neutral
L: Live
E: Earth
L: Live
N: Neutral
SwL: Switched live 230V live input only!
E: Earth pump
N: Neutral pump
L: Live pump
230V live output
230V out
230V in LNE
Terminal block LV iC-Range
ATAG Outdoor sensor 1kOhm*
n.a. = not applicable
ATAG Zone connection
OpenTherm or ON/OFF thermostat
n.a. = not applicable
DHW sensor T3
External safety contact
terminal block
PE
N
PE
L
N
L’
230V out
230V Control
PE
N
L
230V in
N
L
230V out
DO NOT CONNECT 230 VOLT
* Mounting on north – north/east facade of the house. Prevent outside influences such as snow, ventilation air or chimney heat.
230V live output
to pump
E
N
L
E
L
N
SwL
230V out
230V Control
E
N
L
230V in
N
L
230V out
230V control terminal block iC-Range
N: Neutral
L: Live
E: Earth
N: Neutral
L: Live
E: Earth
L: Live
N: Neutral
SwL: Switched live 230V live input only!
E: Earth pump
N: Neutral pump
L: Live pump
230V live output
230V out
230V in LNE
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Atag i28C Specifications

General

Brand	Atag
Model	i28C
Category	Boiler
Language	English