58
11.7 Sensor availability
The following table shows the sensor availability for all CH and DHW control modes. Sensors not mentioned in
the table are optionally available for other functions
CH Mode
0
1
2
3
4
5
T_Supply
M
M
M
M
M
M
T_Return
O
O
O
O
O
O
T_DHW
O
O
O
O
O
O
T_Outdoor
---
M
M
O
O
0-10 Volt
O
O
O
O
M
M
Water Flow DHW
O
O
O
O
O
---
RT Switch
M
M
M
M
M
---
M = Mandatory, O = Optional, --- = Disabled.
CH mode 0 – Central Heating demand with thermostat control
CH mode 1 – CH with an outdoor temperature reset and thermostat control
CH mode 2 – Central Heating with full outdoor temperature reset
CH mode 3 – Central Heating with permanent heat demand
CH mode 4 – Central Heating with analogue input control of setpoint
CH mode 5 – Central Heating with analogue input control of power output
DHW Mode
0
1
2
3
4
5 N.A. 6 N.A. 7 N.A. 8 N.A.
T_Supply
O
M
M
O
M
O
M
M
M
T_Return
O
O
O
O
M
O
---
O
M
T_DHW
---
M
---
M
M
M
M
---
M
T_Outdoor
O
O
O
O
O
O
---
---
O
0-10 Volt
O
O
O
O
O
O
O
O
O
Water Flow DHW
O
O
O
O
O
M
O
M
M
RT Switch
O
O
M
O
O
O
O
O
O
M = Mandatory, O = Optional, --- = Disabled, N.A. = Not Available.
DHW mode 0 – No Domestic Hot Water
DHW mode 1 – Storage with sensor
DHW mode 2 – Storage with thermostat
DHW mode 3 – Instantaneous water heating with plated heat exchanger, flow switch and DHW-out sensor.
DHW mode 4 – Instantaneous water heating with plated heat exchanger and DHW-out sensor
DHW mode 5 to 8 N.A.
11.8 NTC sensor curve
Temperature
(°C)
Resistance
(Ω)
Temperature
(°C)
Resistance
(Ω)
Temperature
(°C)
Resistance
(Ω)
Temperature
(°C)
Resistance
(Ω)
-30
175203
20
12488
70
1753
120
387
-25
129289
25
10000
75
1481
125
339
-20
96360
30
8059
80
1256
130
298
-15
72502
35
6535
85
1070
135
262
-10
55047
40
5330
90
915
140
232
-5
42158
45
4372
95
786
145
206
0
32555
50
3605
100
677
150
183
5
25339
55
2989
105
586
155
163
10
19873
60
2490
110
508
160
145
15
15699
65
2084
115
443
165
130
All NTC sensors are according to this characteristic: NTC 10K@25°C B3977k
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