Baxi LUNA HT 1.280, Installation, Operation And Maintenance Manual

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-10°C 0 0,4 1 2,1 3,1 4,1 10,3
-15°C 0 0,4 0,9 1,8 2,6 3,5 8,8
-20°C 0 0,3 0,8 1,5 2,3 3,1 7,7
Duration of the quick setback for setback by 4 °C in h:
Outside temperature composite:
Building time constant (configuration, programme number 6110)
0 hrs 2 hrs 5 hrs 10 hrs 15 hrs 20 hrs 50 hrs
15°C 0 9,7 24,1
10°C 0 3,1 7,7 15,3 23
5°C 0 1,9 4,7 9,3 14 18,6
0°C 0 1,3 3,3 6,7 10 13,4
-5°C 0 1 2,6 5,2 7,8 10,5 26,2
-10°C 0 0,9 2,1 4,3 6,4 8,6 21,5
-15°C 0 0,7 1,8 3,6 5,5 7,3 18,2
-20°C 0 0,6 1,6 3,2 4,7 6,3 15,8
Optimum start control max
(790, 1090, 1390)
Optimum stop control max
(791, 1091, 1391)
The optimization of the on/off switching time is a function of time and possible
with or without the room unit. With a room unit the conversion of the operating
level compared to the programmed time point is moved forward so that the buil-
ding dynamics (heat up and cool down time) is considered. In this way the desired
temperature level is reached exactly at the programmed time point. If this is not
the case (too early or too late) a new switching time point is calculated which is
used the next time.
Without room sensor an advance time point is calculated based on the outside
temperature and the building time constant (prog. no. 6110). The optimization
time (advance) is limited here to a maximum value. By setting the optimization
time = 0, the function is switched off.
Fig. 16: Optimum start and stop control
off on
Xon
Xoff
ZSP
TRw
TRx
Start time set forward
Stop time set forward
Time switching program
Room temperature setpoint
Room temperature actual value
Programming
82 358 436 08.10