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Siemens RDG100…/RDG110…/RDG140.../RDG160… Basic Documentation CE1P3182en

Building Technologies Functions 28 May 2009

4.3 Setpoints

The setpoint in Comfort mode can be adjusted via the rotary knob.

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; single duct & H/C coil)

– 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 electrical heater or radiator applications

– P09 is the setpoint for cooling and P10 the setpoint for heating;

– the setpoint can no longer be adjusted via rotary knob

Examples Single duct heating or cooling Single duct cooling

with el. heater / radiator

P09 < P10

5°C 40°C25°C18°C

P10P09

Cooling setpoint adjustable 18…25°C

Heating setpoint adjustable 18…25°C

5°C 40°C25°C18°C

P10P09

Cooling setpoint adjustable 18…25°C

Heating setpoint adjustable 18…25°C

P09 ≥ P10

5°C 40°C25°C21°C

P09P10

Cooling setpoint adjustable 25…40°C

Heating setpoint adjustable 5…21°C

Cooling fixed = 25°C (P09)

Heating fixed = 21°C (P10)

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

adjusted via rotary knob 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 Energy Saving 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 Protection 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 thermostat 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

Protection mode

Caution

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