2.4.1
Single- or two boiler application
This example shows how to connect a voltage signal (18–230 V AC/DC) for the EBC20 to start/stop the fan from one
or two independent boilers:
• Connect the supply voltage to terminals 1–3
• Connecting the boilers:
Connect the burner start signal (L) to terminal 11 & 15
Connect the neutral wire to terminal 12 & 16
The start signal for the burner is sent from terminal 14 & 18
• Loop terminals 11 and 13
• Loop terminals 15 and 17
• Connect the chimney fan to terminals 4–6
• Connect the pressure transducer (XTP) to terminals 23–25 using a a shielded
cable 3x0,75 mm
2
and connect the cable shielding to the cable bracket
3002878-EBC20-UK
Pressure control •
17