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3 Power supply auxiliary circuit 2
4 Room thermostat H5 (230 V)
5 Heating circuit pump – QX1
Important
Terminals 5, 6 and 8 are associated with the QX1, QX3 and QX2 parameters of the Configuration menu
Caution
All connections are made to the terminal blocks provided for that purpose in the boiler connection box. The output
available per outlet is 180 W (1 A, with cos ϕ = 0.8) and the inrush current must be less that 5 A. If the load
exceeds either of these values, the control must be relayed using a contactor that must not be installed in the
control panel under any circumstances.
The sum of the currents from all outlets must not exceed 6.3 A.
Fig.88
1 Auxiliary sensor 1 - BX3: flow sensor + cascade
return connection
2 Auxiliary sensor 2 - BX2: heating circuits collector
flow sensor connection
3 Outside sensor
7.7
Filling the installation
7702684 - v04 - 05092019
2
1
3
2
1
6 Domestic hot water pump – QX3
7 Safety contact
8 Boiler pump – QX2
7.6.5
Description of the sensor terminal block
4
5
3
2
1
1
4 Domestic hot water sensor
5 Room temperature sensor 1
6 Room temperature sensor 2
7 Room temperature sensor 3
8 Boiler pump modulation (PWM)
7.7.1
IX 245–130 and IX 245–150
Before filling the heating installation, rinse it thoroughly.
6
8
7
3
2
1
2
1
2 / 3
MW-1000016-05
7 Installation
IX
69
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