E.C.A. Fortius Service Manual page 23

Table 14 The R-T relation of the NTC sensors
o
T ( C) Temperature
-20
-10
0
10
20
25
30
40
50
60
70
80
85
90
100
110
120
125
α
The sensitivity is the percentage change in resistance of the sensing element per
change at the specified temperature.
3 WAY ELECTRİC VALVE
14
3 Way electric valve sends the central heating water coming from the main heat-exchanger to the
plate heat-exchanger when domestic hot water is needed in monothermic models. When there is no
more need for domestic hot water, valve gets back to its previous position enabling central heating.
R (Ω) Resistance
98660
56250
33210
20240
12710
10170
8194
5416
3663
2530
1782
1278
1089
931,6
690,0
518,5
395,0
346,4
fig. 13 3 Way Electric Valve
α
o
(1/ C) Sensitivity
-5,8 %
-5,4 %
-5,1 %
-4,8 %
-4,5 %
-4,4 %
-4,3 %
-4,0 %
-3,8 %
-3,6 %
-3,4 %
-3,2 %
-3,2 %
-3,1 %
-2,9 %
-2,8 %
-2,7 %
-2,6 %
o
C temperature
22