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Remote
External
probe
Electrical
power supply
Ambient
Thermostat
Figure 5.19
The path of the boiler and ambient thermostat
power supply cable or wires must follow the
path indicated in Figure 5.20.
Figure 5.20
INSTALLATION
Make the boiler cables exit using specific cable
glands O (Figure 5.21).
Figure 5.21
5.11 Connecting an ambient thermo-
stat or zone valves
Use the terminals indicated in Figure 5.19 to
connect the ambient thermostat.
When connecting any type of ambient ther-
mostat, the electric jumper between "1 and
3" must be removed.
The electric wires for the ambient thermostat
must be inserted between terminals "1 and 3"
as shown in Figure 5.22.
O
Do not connect live cables on the
"1 and 3" terminals.
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