Installation manual

178
8.4.2
NOTE
The use of the KPV 25 compact manifold with overflow valve is
recommended for heating systems with panel heating and a heating
water flow rate up to max. 1.3 m
3
/h.
Fig. 8.3: KPV 25 compact manifold with VTB 25 manifold bar and WWM 25
domestic hot water module
Fig. 8.4: Integration of the compact manifold for heating operation and
domestic hot water preparation
Fig. 8.5: KPV 25 pressure loss in relation to the volume flow
8.4.2 KPV 25 compact manifold with EB KPV extension module
The KPV 25 compact manifold can be turned into a differential
pressureless manifold through the use of the EB KPV 25
extension module. The generator and consumer circuits are
hydraulically isolated and they comprise on circulating pump
each.
NOTE
The use of the KPV 25 compact manifold with EB KPV extension module
is recommended for heat pumps with a heating water flow rate up to max.
2.0 m
3
/h.
8.4.3 DDV 32 dual differential pressureless manifold
The DDV 32 dual differential pressureless manifold functions like
an interface between the heat pump, the heating distribution
system, the buffer tank and, in some cases, even the domestic
hot water cylinder.
A compact system is used to simplify the installation process so
that a lot of different components do not have to be installed
individually.
1
Mounting position of heat
circulating pump
(not included in scope of
supply)
2 Overflow valve
3
Buffer tank connections (1”
internal thread)
4
Heat pump connections (1”
internal thread)
5
Heating connections (1”
internal thread)
6
Expansion vessel
connection (¾” external
thread)
7
Hot water heating
connections (1”external
thread)
8
Immersion sleeve for return
flow sensor incl. cartridge
fuse
9
Safety valve (¾” internal
thread)
10 Stop-cock
11 Stop-cock with check valve
12 Thermometer
13 Shell insulation














KPV 25 WWM 25
VTB 25
Immersion heater
Immersion heater
Hot water cylinde
r
Expansion vessel
Buffer tank
0,50
0,45
0,40
0,35
0,30
0,25
0,20
0,15
0,10
0,05
0,00
0,00 0,50 1,00 1,50 2,00 2,50 3,00 3,50
Volume flow in [m
3
/h]
Pressure loss in [bar]