Installation instructions geoTHERM VWS/VWW 0020051574_01
32
6.6.2 Direct heating operation (Hydraulic plan 1)
The heat pump is connected directly to the underfloor
heating circuit. Control is carried out using energy bal-
ance control by default (see Chap. 8.4.2). To do this, the
VF2 flow temperature sensor must be connected (floor
protection circuit).
Fig. 6.8 Hydraulic plan 1
Key to Fig. 6.8
3
geoTHERM heat pump, VWS/VWW
13
Weather-controlled energy balance controller
16 External
sensor/DCF
receiver
30 Non-return
valve
31
Control valve with position indication
32 Cap
valve
33
Air separator/Dirt filter
42a Expansion
relief
valve
42b Diaphragm
expansion
tank
58
Fill and drain valve
KP
Circulation pump, heat pump circuit
VF2 Flow temperature sensor
WQ Heat source circuit
h
Note
If it is necessary to isolate the heating
circuit hydraulically, fit a low loss head-
er as shown in Fig. 6.8.
Optional for hydraulic isolation:
45
Low loss header
HK2-P Heating circuit pump with control line to heat pump HK2-P
The brine pump is only included with VWS.
h
Note
If you have fitted a low loss header be-
tween the heat pump and the heating
system, the VF2 temperature sensor
must be mounted in the supply line from
the low loss header to the heating sys-
tem.
6 Electrical installation