Installation and operating instruction
Gas condensing unit WTC-GB 15-B Compact and WTC-GB 25-B Compact
12 Technical documentation
83309302 1/2018-05 La
160-196
12.7.1 Factory setting heating curve
Heating curve dependent on the heating circuit type set:
10.0 / 7 K
5.0 / 0 K
10.0 / 0 K
17.5 / 7 K
14.0 / 7 K
2.5 / 0 K
20
25
15
10
5
0
-5
-10
-15
-20
-25
-30
30
40
50
60
80
20
15
70
1
2
3
4
5
9
8
7
6
1
External temperature [°C]
2
Flow temperature [°C]
3
Gradient / parallel movement
Heating
curve
(1
Heating circuit type
4
Floor warming
5
Underfloor heating
6
Universal
7
Radiator 60
8
Radiator 70
9
Convector
(1
With room temperature normal 21.0 °C.
A change in room temperature of 1 °C leads to a parallel movement of the heating
curve set by approx. 1.5 … 2.5 °C. The parallel movement depends on the gradient
set and the external temperature. The steeper the gradient or the warmer the ex-
ternal temperature, the greater is the change.