Symbol
R0123456789
R0123456789
T1, T2, T3,...T8
TR1
TA
TQ
TD
User manual
Description
Floor temperature. *
Boiler return-pipe temperature.
Flue gas temperature.
Temperature of the area where heat pump is installed.
D. h. w. circulation pipe temperature.
Burner.
Burner - second stage.
Bypass pump of the heating circuit (flashing means the pump will
switch-off after expiration of delay time).
Status of the controller's control outputs - relays are switched on.
Status of the controller's control outputs - relays are switched off.
Mixing valve - closing.
Mixing valve - opening.
Change-over valve - direct circuit.
Change-over valve - d. h. w. storage tank.
D. h. w. warming pump.
Circulation pump for d. h. w.
Boiler bypass pump.
Boiler circulation pump.
Heat pump.
Electric heater.
Electric heater for d. h. w.
Boiler switchover, d. h. w. switchover
Output operation according to program timer.
Temperature measured by sensors T1, T2, T3, T4, T5, T6, T7 or T8.
Temperature measured by a room sensor or room unit DD2+.
Outdoor temperature, obtained through the bus connection.
Heat source temperature, obtained through the bus connection.
Calculated requested temperature for direct circuit.
16