Electric Connection Between The Boiler And The External Probe - Biasi Riva Advance Combi Installation & Operation Instructions

12. Electrical Connections/Wiring Cont.

12.7 Electric connection between the boiler and the external probe:

When connecting the external probe to the
boiler, use electric wires with a minimum
gauge of 18 AWG or section of 0.50 mm
The electric wires for connecting the
external probe to the boiler must run
through different grooves than those at
network voltage (120 VAC), as they are
powered at a low safety voltage and their
maximum length must not exceed 66 feet
or 20 meters.
• Remove the two screws shown in Figure
12.11 and open the external probe
connection terminal board.
• Connect the two electric wires to terminals
E1 and E2 on the terminal board as shown
in Figure 12.12.
• Connect the same wires to the external
probe terminals.
33 RIVA ADVANCE COMBI MANUAL
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2
Figure 12.11
TO THE EXTERNAL PROBE
External probe
connection
terminal board
Figure 12.12