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Siemens RDF302 Basic documentation CE1P3079en
Building Technologies Functions 07 Dec 20111
If a setpoint (Economy or Protection) is set to OFF, the thermostat does not control
the room temperature in the corresponding mode (heating or cooling).
This means no protective heating or cooling function and thus risk of frost in
heating mode or risk of over-temperature in cooling mode!
The Economy setpoints are accessible at the service level (P11, P12); the
Protection setpoints at the expert level (P65, P66).
3.3.2 Setting and adjusting setpoints
Room temperature setpoints can be
– set during commissioning
– adjusted during runtime
The source can be via
– local HMI
– a Modbus commissioning tool
– a Modbus master unit
The thermostat stores the setpoints
– in EEPROM in the form of parameters
The table below shows the interrelations:
Setpoint setting (Stored in
EEPROM
of thermostat)
Current runtime setpoints in
thermostat
Commissioning
– HMI
– Tool download
– Master unit
P08 Comfort basic setpoint
P33 Dead zone Comfort 1)
Comfort setpoint
P11 Economy Heating
P12 Economy Cooling
Economy Heating
Economy Cooling
P65 Protection Heating
P66 Protection Cooling
Protection Heating
Protection Cooling
Setpoint adjustment
New current runtime setpoints in
thermostat
Via Modbus Local
operation
Comfort setpoint + / - buttons Comfort setpoint
Economy Heating
Economy Cooling
Protection Heating
Protection Cooling
Effective room operating mode
Current setpoint (used by the
thermostat for temperature control)
1) Only required for heating AND cooling applications (see section 3.6.7)
The cu
rrent setpoint (used by the thermostat for temperature control) is available
on the Modbus for use in the central control unit.
Caution
Room temperature:
Comfort setpoint
Room temperature:
Current setpoint