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ENGLISHFRANCAISNEDERLANDSESpAñoLITALIANoDEuTSCH
664Y2300.C
Factory
setting
typical
setting Description
Factory
setting
typical
setting Description
00 : Heating mode “OFF”
01 : Heating mode “ON”
• Direct circuit : weather depending
controlled. The pump of the direct circuit
is controlled by the room thermostat.
• Mixed circuit : weather depending
controlled. The pump runs continuously.
• Mixed circuit without DHW priority :
Switch P34 to 60.
Setting T° for the heating water (adjust-
able between 30 and 85°C).
T° min. for the heating water
(adjustable between 15 and 60°C).
• Direct 2 mixed circuit : weather
depending controlled. Both pumps runs
continuously. Night setback on the direct
circuit controlled by time-clock.
• Mixed circuit without DHW priority :
Switch P34 to 61.
Minimum outside temperature [T4]
(adjustable between -20 and 10°C).
Maximum outside temperature [T4]
(adjustable between 15 and 25°C).
Booster
Maximum temperature of the
second heating circuit
Night setback (°C) only if a
time-clock is connected to 1 and 2,
and P34 is set to 21 or 61.
Minimum temperature of the second
heating circuit