22
Overall hydraulic diagram for ground and water heat sources
MASTER
P
M
AB
A
B
P
P
M
M
SLAVE
M
M
S
S
M
M
M
P
ww
KW
ww
KW
M
M
M
M
M
M
M
M
M
M
M
M
M
M
P
M
M
M
P
P
M
M
M
Fig. 18
Black: Hydraulic lead heat pump (master)
Grey: Hydraulic lag heat pump (slave) and DHW cir-
culation
A
Residual heat extension, ZK03853 (function is
part of the AW package)
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.)
5837251
Installation
