Table of Contents
Advertisement
Tab.21 Duration of the quick reduction
Duration of the quick reduction for reduction by 2°C in hrs:
Outside temperature mixed:
15°C
10°C
5°C
0°C
-5°C
-10°C
-15°C
-20°C
Duration of the quick reduction for reduction by 4°C in hrs:
Outside temperature mixed:
15°C
10°C
5°C
0°C
-5°C
-10°C
-15°C
-20°C
Fig.24
Optimum start and stop control
7658013 - 02 - 15092016
enabled. Without room sensor the quick reduction switches the heater off
depending on the outside temperature and the building time constant
(prog.no. 6110) until the temperature has theoretically dropped to the re
duced target value or the frost protection value.
Building time constant (configuration, prog.no. 6110)
0 hrs
2 hrs
0
3.1
0
1.3
0
0.9
0
0.6
0
0.5
0
0.4
0
0.4
0
0.3
Building time constant (configuration, prog.no. 6110)
0 hrs
2 hrs
0
9.7
0
3.1
0
1.9
0
1.3
0
1
0
0.9
0
0.7
0
0.6
For more information, see
Time constant building (6110), page 111
Optimum start control max (790, 1090, 1390) and Optimum
stop control max (791, 1091, 1391)
Xon Start time set forward
Xoff Stop time set forward
ZSP Time switching program
TRw Room temperature setpoint
TRx Room temperature actual value
The optimisation of the on/off switching times is a function of time and pos
sible with or without room unit. With a room unit the changeover of operat
ing level compared to the programmed time moves forward so that the
building dynamics (heat-up and cool-down times) are taken into account.
In this way the required temperature level is reached exactly at the pro
grammed time. If this is not the case (too early or too late) a new switching
RA-0000070
time is calculated that is applied next time.
Without room sensor an advance time is calculated based on the outside
temperature and the building time constant (prog. no. 6110). The optimisa
tion time (advance) is limited here to a maximum value. By setting the opti
misation time = 0, the function is switched off.
5 hrs
10 hrs
15 hrs
7.7
15.3
3.3
6.7
2.1
4.3
1.6
3.2
1.3
2.5
1
2.1
0.9
1.8
0.8
1.5
5 hrs
10 hrs
15 hrs
24.1
7.7
15.3
4.7
9.3
3.3
6.7
2.6
5.2
2.1
4.3
1.8
3.6
1.6
3.2
Paramount four 30 – 115 kW
9 Settings
20 hrs
50 hrs
23
10
13.4
6.4
8.6
21.5
4.7
6.3
15.8
3.8
5
12.5
3.1
4.1
10.3
2.6
3.5
8.8
2.3
3.1
7.7
20 hrs
50 hrs
23
14
18.6
10
13.4
7.8
10.5
26,2
6.4
8.6
21.5
5.5
7.3
18.2
4.7
6.3
15.8
87
Hide quick links:
Advertisement
Table of Contents
