Ot Deactivation Value Reduced Operation; Ot Activation Value Rated Operation - Samson TROVIS 5433 Mounting And Operating Instructions

Functions of the heating circuit
temperature falls below this value (less 0.5 °C hysteresis), heating operation is restarted im-
mediately.
With the default settings, this means that, during the warm season, the system is switched off
at an outdoor temperature of 22 °C.
Parameters
OT deactivation value rated operation
Lag time of heating circulation pump

5.4.2 OT deactivation value reduced operation

If the outdoor temperature exceeds the limit value OT deactivation value reduced operation in
reduced operation, the heating circuit is put out of service immediately. The valve is closed and
the pump is switched off after the adjusted Lag time of heating circulation pump has elapsed.
When the outdoor temperature falls below this value, heating operation is restarted immedi-
ately.
With the default settings, this means that, at night, the system is switched off at an outdoor
temperature of 15 °C to save energy. Nevertheless, remember that the system requires some
time in the morning to heat up the building (–> Advance heating depending on outdoor tem-
perature, section 5.7.1).
Parameters
OT deactivation value reduced operation 15 °C
Lag time of heating circulation pump

5.4.3 OT activation value rated operation

If the heating circuit is in reduced operation (automatic operating mode), the circuit is auto-
matically transferred to rated operation when the outdoor temperature falls below the limit
value OT activation value rated operation . Reduced operation is restarted when the limit
value is exceeded.
This function is activated at very low temperatures to avoid that the building cools down ex-
cessively outside the times-of-use when low outdoor temperatures occur.
Parameter
OT activation value rated operation
42
EB 5433 EN
WE Parameter level / Range of values
22 °C PA1 / 0 to 50 °C
180 sec PA1 / 15 to 2400 sec
WE Parameter level / Range of values
PA1 / OT activation value rated operation to 50 °C
180 sec PA1 / 15 to 2400 sec
WE Parameter level / Range of values
–15 °C PA1 / –30 °C to OT activation value reduced
operation