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452114.66.98 FD 9506 EN-3
WPM Econ5Plus - WPM Econ5R
English
3.2 Temperature sensor (heating controller N1)
Depending on the type of heat pump used, the following
temperature sensors are already installed or must be additionally
mounted:
External temperature (R1) (see Chap. 3.2.2 on p. 3)
Temperature, heating circuit 1, 2 and 3 (R2, R5 and R13)
(see Chap. 3.2.3 on p. 4)
flow temperature (R9), as flow sensor in the case of air-to-
water heat pumps
Outlet temperature of the heat source in the case of brine-to-
water and water-to-water heat pumps
Hot water temperature (R3)
Temperature of regenerative heat accumulator (R13)
3.2.1 Heating controller with removable control panel
All temperature sensors to be connected to the heating controller
with removable control panel must correspond to the sensor
characteristic curve shown in Fig. 3.3 on p. 3. The only exception
is the external temperature sensor included in the scope of
supply of the heat pump (see Chap. 3.2.2 on p. 3)
Fig. 3.2: Removable control panel
Fig. 3.3: NTC-10 sensor characteristic curve for connecting temperature
sensors to the heating controller with removable control panel
3.2.2 Mounting the external temperature sensor
The temperature sensor must be mounted so that all weather
conditions are taken into consideration and the measured value
is not falsified.
Installation:
Mount on the external wall on the north or north-west side
where possible
Not in a “sheltered position” (e.g. niche in a wall or under a
balcony)
Not in the vicinity of windows, doors, exhaust air vents,
external lighting or heat pumps
Not to be exposed to direct sunlight at any time of year
Fig. 3.4: Sensor characteristic curve, NTC-2 according to DIN 44574
Sensor lead: Max. length 40 m
Core cross-section: min. 0.75 mm2
External diameter of the cable: 4–8 mm
Temperature in °C
-20 -15 -10 -5 0 5 10 15 20 25 30 35 40 45 50 55 60
NTC-2 in k14,6 11,4 8,9 7,1 5,6 4,5 3,7 2,9 2,4 2,0 1,7 1,4 1,1 1,0 0,8 0,7 0,6
NTC-10 in k67,7 53,4 42,3 33,9 27,3 22,1 18,0 14,9 12,1 10,0 8,4 7,0 5,9 5,0 4,2 3,6 3,1
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