Vaillant geoTHERM exclusive, Installation Instructions Manual

Page: 39 / 92

39
geoTHERM exclusive VWS 0020051614_00 installation instructions
6.6.3 Direct heating operation (Hydraulic plan 6)
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
VF 2 flow temperature sensor must be connected (floor
protection circuit).
Furthermore, the heat pump actuates the internal do-
mestic hot water cylinder.
AF
42a
43
42b
32
65
AB
AB
AB
B
B
42a
B
A
A
A
Hzg.
Sole
M
M
64
WQ
M
230 V ~
230 V ~
SP
33
18
16
31 31
Fig. 6.10 Hydraulic plan 6
Key to Fig. 6.10
16 Outdoor sensor
18 VF 2 feed temperature sensor
31 Control valve with position indication
32 Cap valve
33 Air separator/Dirt filter
42a Expansion relief valve
42b Expansion vessel
43 Safety group for hot water pipe
64 Brine pump
65 Cooling heat exchanger
WQ Heat Source
Brine Evaporator
Heating Condenser
h
Note!
If hydraulic decoupling of the heating
circuit is necessary, then fit a low loss
header as well as an external heating
circuit pump.
h
Note!
If you have fitted a low loss header be-
tween the heat pump and the heating
system, then the VF 2 temperature sen-
sor must be mounted in the flow line
from the low loss header to the heating
system.
Electrical installation 6