Siemens RDU340 Instruções de Operação descarregar pdf (Página 10)

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Siemens RDU340… Basic Documentation CE1P3078en

Building Technologies Functions 2014-09-05

4.3 Setpoints

The setpoint in Comfort mode can be adjusted via the +/- buttons.

For energy saving purposes, the setpoint adjusting range can be limited to

minimum (P09) and maximum (P10).

 If the minimum limit P09 is set lower than the maximum limit P10, both heating

and cooling are adjustable between these two limits.

 For heating or cooling applications (e.g. single duct)

– The setting range in cooling mode is from P09…40° instead of 5…40°

– The setting range in heating mode is from 5…P10° instead of 5…40°

 For cooling and heating with el. heater applications (e.g. single duct)

– The setting range is from P09…40° instead of 5…40°

– The setpoint for the el. heater is maximal limited by P10

Examples Single duct heating or cooling Single duct cooling with el heater

P09 < P10

5°C 40°C

25°C18°C

P10P09

Cooling setpoint adjustable 18…25°C

Heating setpoint adjustable 18…25°C

5°C 40°C25°C18°C

P10P09

Setpoint adjustable 18…25°C

Heating setpoint := Cooling setpoint –

dead zone

P09  P10

5°C 40°C25°C21°C

P09P10

Cooling settable 25…40°C

Heating settable 5…21°C

5°C 40°C

25°C21°C

P09P10

Setpoint adjustable 25…40°C

Heating setpoint := Cooling setpoint –

dead zone, but max (limited by) P10

If the “Temporary setpoint function” is enabled via parameter P69, the setpoint

adjusted via the +/- buttons is set back to the Comfort basic setpoint when the

operating mode changes.

The factory setting for the Comfort basic setpoint is 21 °C and can be changed via

parameter P08.

Use control parameters P11 and P12 to adjust the Economy mode setpoints.

The heating setpoint is factory-set to 15 °C and to 30 °C for cooling.

Use control parameters P65 and P66 to adjust the Standby mode setpoints.

The heating setpoint is factory-set to 8 °C (frost protection) and to OFF for cooling.

If a setpoint is set to OFF (P65, P66), the controller does not maintain the setpoint

in the corresponding mode (heating or cooling).

This means no protective heating or cooling function and thus risk of frost in the

heating mode or risk of overheat in cooling mode!

Comfort mode

Setpoint limitation

P09 < P10

P09  P10

Temporary setpoint

Energy Saving

mode

Standby mode

Caution

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