Table of Contents
Advertisement
Setpoint mode
Comfort mode
Temporary setpoint
Setpoint limitation
P09 < P10
(Comfort concept)
Example:
Economy mode
Protection mode
Caution
20 / 60
Siemens
Smart Infrastructure
3.3
Room temperature setpoints
3.3.1
Description
Touch the
icon when it is available on the display and press +/– to adjust the
desired room temperature setpoint.
The factory setting for the Comfort basic setpoint is 21 °C. It can be changed in the
thermostat's EEPROM using P08 or the bus with the communication object
"Comfort basic setpoint". The last option selected is always used.
The Comfort setpoint can be adjusted using +/–, or the bus from a remote device
such as a touch panel, or operating unit. The last option selected is always used.
The same Comfort setpoint is shared by both VRF HMI and UFH applications for
control purpose.
If the "Temporary setpoint" function is enabled using P69, the Comfort setpoint is
set back to the Comfort basic setpoint stored in P08 when the operating mode
changes. This function works for UFH application only.
For comfort or energy saving purposes, the setpoint setting range can be limited to
a minimum (P09) and maximum (P10).
•
If the minimum limit P09 is set lower than the maximum limit P10, heating and
cooling setpoints can be adjustable between these two limits. Note that for
UFH application, only heating setpoint is relevant.
•
The customer adjusts the desired setpoint and the thermostat controls the
room temperature accordingly.
5° C
18° C
P09
Use P11 to adjust the Economy mode heating setpoint for UFH application.
The heating setpoint is factory-set to 15 °C.
Use P65 to adjust the Protection mode heating setpoint for UFH application.
The heating setpoint is factory-set to 8 °C (frost protection) and to OFF for cooling.
If a setpoint (Economy or Protection) is set to OFF, the UFH application in the room
thermostat does not control the room temperature in heating mode. This means
that there is no protective heating function and there exists a risk of frost in heating
mode!
The Economy setpoints are accessible at the Service level (P11) or via tools (ACS
or ETS). The Protection setpoints are accessible at the Expert level (P65).
RDF880KN.. Basic documentation
Cooling setpoint adjustable: 18...25 °C
Heating setpoint adjustable: 18...25 °C
25° C
40° C
Note that cooling setpoint applied to
P10
VRF only.
A6V12318532_en--_a
2021-03-22
Advertisement
Table of Contents
