INSTALLATION
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To calculate the size of the heating installation, refer to the
"Available pressure" graph below.
Graph representing the available circulation pump pressure
ΔT20
o
C
(c)
Underoor heating
For appliances with underoor heating, it is possible but not
necessary to t a safety thermostat onto the underoor heating
outlet. For the electrical connection of the thermostat see the
section on “Electrical connections - pages 27”.
If the outlet temperature is too high, the boiler will stop both
domestic hot water and the heating production and the error
code 116 “oor thermostat contact open” will appear on the
display. The boiler will restart when the thermostat is closed
during automatic resetting.
If the thermostat cannot be installed, the underoor heating
equipment must be protected by a thermostatic valve, or
by a by-pass to prevent the oor from reaching too high a
temperature.
0
1
2
3
4
5
6
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8
0 100 200 300 400 500 600 700 800 900 1000 1100 1200
mCe
l/h
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