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EN-6 452237.66.51 · FD 9912 www.gdts.one
English WI 65TU - WI 95TU
Minimum heating water flow rate
The minimum heating water flow rate through the heat pump
must be assured in all operating states of the heating system.
This can be accomplished, for example, by installing a dual dif-
ferential pressureless manifold.
The frost protection function of the heat pump manager is ac-
tive whenever the heat pump manager and the heat circulating
pumps are ready for operation. The system must be drained if
the heat pump is taken out of service or in the event of a power
failure. If heat pump systems are implemented in buildings
where a power failure cannot be detected (holiday homes etc.),
the heating circuit should be operated with suitable frost pro-
tection.
7.3 Heat source connection
The following procedure must be observed when making the
connection:
Connect the well pipes to the heat pump's flow and return.
ATTENTION!
!
!
It is essential that the dirt trap included in the accessories
pack is installed in the return (inlet).
ATTENTION!
!
!
The well water must comply with the required water quality
standards (see see Cap. 9.4 on pag. 10).
ATTENTION!
!
!
The flow rate switch available as an accessory must be
installed in the flow (outlet) of the heat source.
The hydraulic integration diagram must be adhered to.
7.4 Temperature sensor
The following temperature sensors are already installed or must
be installed additionally:
Outside temperature sensor (R1) supplied (NTC-2)
Return temperature secondary circuit (R2) installed
(NTC-10)
Return temperature primary circuit (R24) installed (NTC-
10)
Flow temperature secondary circuit (R9) installed (NTC-10)
Flow temperature primary circuit (R6) installed (NTC-10)
7.4.1 Sensor characteristic curves
The temperature sensors to be connected to the heat pump
manager must correspond to the sensor characteristic curve il-
lustrated in Fig. 7.2. The only exception is the outside tempera-
ture sensor included in the scope of supply of the heat pump
(see Fig. 7.3)
Fig. 7.2:Sensor characteristic curve NTC-10
Fig. 7.3:Sensor characteristic curve NTC-2 according to DIN 44574 Out-
side temperature sensor
Temperature in °C -20 -15 -10 -5 0 5 10
NTC-2 in k14.6 11.4 8.9 7.1 5.6 4.5 3.7
NTC-10 in k67.7 53.4 42.3 33.9 27.3 22.1 18.0
15 20 25 30 35 40 45 50 55 60
2.9 2.4 2.0 1.7 1.4 1.1 1.0 0.8 0.7 0.6
14.9 12.1 10.0 8.4 7.0 5.9 5.0 4.2 3.6 3.1
0
10
20
30
40
50
60
70
-20-15-10-5 0 5 1015202530354045505560
External temperature in [°C]
Resistance value in [kOhm]
0
2
4
6
8
10
12
14
16
18
20
-20-15-10-5 0 5 1015202530354045505560
External temperature in [°C]
Resistance value in [kOhm]
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