20
Overall hydraulic diagram for heat sources geothermal and water
M
M
M
MASTER
P
M
AB
A
B
P
P
M
M
SLAVE
M
M
S
S
M
M
M
P
HW
CW
HW
CW
M
M
M
M
M
M
M
M
M
M
M
M
M
P
M
M
M
P
P
M
M
Fig. 13
Black: Hydraulics of lead heat pump (master)
Grey: Hydraulics of lag heat pump (slave) and DHW
circulation
A
Extension for residual heat, ZK03853
B
Well circuit/groundwater (standard unit),
ZK04292
C
Cascade (max. 2 heat pumps, one master and
one slave)
Heat pump communication via Modbus Ether-
net or BACnet
With external Modbus communication: Modbus
Ethernet connection to master heat pump
D
Extension for heating circuit 1 (HC1), ZK03862
Preparing for installation
Hydraulic connection requirements
(cont.)
5855865
Installation
Содержание BW 352.B027
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