Technical data
120 | Project planning manual for heat pumps for heating and domestic hot water preparation | 01.2012 www.dimplex.de
8.15.5 Integration of the heat pump in the heating system
Heating circuits with differential pressureless manifold
Pre-configuration
Setting
Fig. 8.41: Integration diagram for mono energy heat pump operation with one heating circuit, a buffer tank connected in series
and domestic hot water heating
Operating mode
electric heating
Immer-
sion
heater
in the
buffer
1st heating circuit Heating
2nd heating circuit No
Domestic hot water
Yes
with a
sensor
Flange heater Yes
Swimming pool No
The heating water flow rate must
be ensured using a dual differ-
ential pressureless manifold
(see Chapt. 8.4.3 on page 100)
The use of the dual differential
pressureless manifold DDV 32
is recommended for heat pumps
with a heating water flow rate up
to max. 2.5 m
3
/h.
Operation of the circulating
pump (M16) in the generator cir-
cuit with the compressor in heat-
ing operation only, to avoid un-
necessary operation.
Three heating circuits with differential pressureless manifold
Pre-configuration
Setting
Fig. 8.42: Integration diagram for mono energy heat pump operation with three heating circuits, external supplementary heat-
ing and buffer tank connected in series
Operating mode
electric heating
Immer-
sion
heater
in the
buffer
1st heating circuit Heating
2nd heating circuit Heating
3rd heating circuit Heating
Domestic hot water No
Swimming pool No
A safety temperature monitor
(F7) which protects the distribu-
tion system from impermissibly
high temperatures must be used
when the buffer tank connected
in series is charged externally.
The dual differential pressure-
less manifold protects the heat
pump since the circulating pump
(M16) in the generator circuit is
only active when the compres-
sor is running in heating opera-
tion.
Heating circuit pumps M13/M15
supply the flow around the re-
turn sensor and prevent the heat
pump from switching on when
the system temperatures are too
high.
DDV
R1
(X3-R1)
T
R2.1
(X3-R2.1)
T
(X2-M13)
M13
WWM
00231024
M16
(X2-M16)
TC
2
3
(X2-K20)
E10.1
E9
(X2-K21)
(X2-M18)
M18
WWM
4
R3
(X3-R3)
T
N1
1
DDV
R1
(X3-R1)
T
R2.1
(X3-R2.1)
T
(X2-M13)
M13
WWM
VTB
00633004
(N1-N011)
M15
(X3-R13)
R13
(N1-N07/N08)
M21
MMH
T
M16
(X2-M16)
TC
TC
M
3
W
(F7)
W W
(F7)
(F7)
(X2-K20)
E10.1
G
N1-ID3
>50°C
(N1-N011)
M15
(X3-R5)
R5
(N1-N012/N013)
M22
MMH
T
TC
M
N1
1