User Manual

Functions
Operating modes
4
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When an application program is downloaded to the Synco devices via ETS, the
correct group addresses must also be downloaded in order to display the time of
day on the thermostat (see Synco Knowledge Base - KB771).
4.2 Operating modes
The thermostat operating mode can be influenced in different ways (see Different
ways to influence the operating mode [➙ 24]). Specific heating and cooling
setpoints are assigned to each operating mode.
The thermostat sends the current room operating mode via bus.
The following operating modes are available:
Operating
mode
Icon Description
Auto In Auto mode, the operating mode is commanded via bus.
Auto is replaced by Comfort when no time schedule via bus is present.
Room operating
mode: Presence
detector
Comfort
In Comfort mode, the thermostat maintains the Comfort setpoint. This
setpoint can be defined via P011, P013…P016. It can be locally
adjusted via the rotary knob or via bus.
In Comfort mode, the fan can be set to automatic or manual fan speed:
I, II or III.
The thermostat switches to Comfort mode when…
● Standard presence mode: the presence detector (local or via KNX)
is active (room is occupied)
*)
Room operating
mode:
Presence detector
Economy
The setpoints (more energy savings than Comfort mode) can be
defined via P019 and P020.
The thermostat switches to Economy mode when...
● the operating mode button is pressed (only possible if P002 is set
to 2),
● Economy is sent via bus,
● Hotel presence mode: When hotel guests leave their rooms, the
thermostat switches to Economy mode. The buttons are locked and
icon displays.
*)
Room operating
mode:
Window contact
Protection In Protection mode, the system is...
● protected against frost (factory setting: 8 °C, configurable via P100)
● protected against overheating (factory setting: OFF, configurable
via P101)
● No other operating mode can be selected locally if Protection mode
is commanded from time schedule via bus (for example, from a
central control unit RMB795B). and are displayed.
The thermostat switches to Protection mode when...
● the operating mode button is pressed
● Protection is sent via bus
● the window contact is active (open window)
● "Window contact" is sent to thermostat via bus, for example, from a
KNX switch
*)
Note
Room operating mode:
State