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Box Temperature Sensor; Water Flow Sensor - Bosch T5600S 12 D 23 Training And Service Information

Low nox instantaneous gas water heater / room sealed pressurized gas water heater for indoor installation
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4.9 Box Temperature sensor

The Box air temperature is measured by a 10 kΩ NTC (See table with characteristic
values) and is assembled inside the room sealed box, in order to monitor the temperature
inside of the cabinet.
4.10

Water Flow Sensor

Water flow is measured by a turbine flow sensor that is fed by a DC signal of 5 V, and
gives a proportional feedback to the measured water flow.
-
Flow rate to operate the appliance: 2.8 l/min
-
Flow rate to shut off the appliance: 2.4 l/min
Water flow characteristic curve formula: f = 6.9 x Q
Note:
f is output frequency (Hz)
Q is water flow rate (L/min)
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43
Pict.24 – Box air temperature sensor
Flow (L/min)
Frequency (Hz)
15
103.5
14
96.6
13
89.7
12
82.8
11
75.9
10
69
9
62.1
8
55.2
7
48.3
6
41.4
5
34.5
4
27.6
3
20.7
2
13.8
Table 8 – Water flow sensor values
6 720 887 547 "SM FP_ErP MPP Europe 2018/08 en"

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