Component Resistance Characteristics; Heating Curve - Worcester Greenstar 1000 GR1000W 24 C NG Installation And Maintenance Instructions Manual

Technical Specifications/Logs
14.2

Component resistance characteristics

Temperature [°C]
0
5
10
15
20
25
35
50
60
70
80
90
95
100
110
Table 37 Central heating flow and return NTC
Temperature [°C]
0
10
20
30
40
50
60
70
80
90
Table 38 Domestic Hot Water Sensor
Temperature [°C]
-40
-30
-20
-10
0
10
20
30
40
50
Table 39 Outlet temperature sensor
98
Resistance []
33 404
25 902
20 247
15 950
12 657
10 115
6 586
3 624
2 500
1 759
1 260
918
788
680
510
Resistance []
35 975
22 763
14 772
9 786
6 652
4 607
3 243
2 332
1 703
1 261
Resistance []
≥ 4 111
3 218
2 360
1 650
1 122
759
515
354
247
≤ 174
14.3

Heating curve

VT/°C
max
pA
S
B
pB
+20
Fig. 190 Heating curve
A End point (at the outside temperature – 10 °C)
AT Outdoor ambient temperature
B Base point (at the outside temperature + 20 °C)
max Maximum flow temperature
pA Flow temperature at the end point of the heating curve
pB Flow temperature at the foot point of the heating curve
S Automatic heating switch-off (summer mode)
VT Flow temperature
Greenstar 1000 – 6721835943 (2023/08)
A
-10
AT/°C
0 010 005 905-001