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Siemens Room temperature controllers with LCD N3075en
Building Technologies 17.04.2009
• If the minimum limit P05 is set lower than the maximum limit P06, both heating and
cooling are adjustable between these 2 limits.
• For heating or cooling applications:
– The setting range in cooling mode is from P05…40 °C instead of 5…40 °C
– The setting range in heating mode is from 5…P06 °C instead of 5…40 °C
Examples Heating or cooling
P05 < P06
5°C 40°C25°C18°C
P06P05
Cooling setpoint adjustable 18…25 °C
Heating setpoint adjustable 18…25 °C
P05 ≥ P06
5°C 40°C25°C21°C
P05P06
Cooling setpoint adjustable 25…40 °C
Heating setpoint adjustable 5…21 °C
The setpoints for Energy Saving mode
can be adjusted via control parameters P01
and P02.
In Protection mode
, the controller monitors the setpoints adjusted for heating and
cooling. If the room temperature exceeds or falls below the setpoint, the setpoint for
Protection is maintained (this independent of the manual H/C changeover status).
These setpoints can be adjusted via control parameters P03 and P04. The factory set-
ting for heating in Protection mode is 8 °C.
P05 < P06
P05 ≥ P06
Energy Saving mode
Protection mode
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