Hydraulic Connections - Viessmann BW 35 .AHT PW Series Installation And Service Instructions Manual

Preparing for installation
Hydraulic connection requirements

Hydraulic connections

General hydraulic scheme
M
M
M
P P
WW
M
CW
Fig. 10
Control extension residual heat (part no. ZK02826)
A
Control extension DHW heating
B
(part no. ZK02829)
Control extension AC/NC cooling
C
(part no. ZK02830)
Note
This scheme is a general example without shut-off
valves or safety equipment. This does not replace the
need for on-site engineering. Determine the type of
heat source, groundwater or geothermal probe during
the engineering process.
Required equipment
Pos. Designation
1 Heat pump
Heat pump control unit
2
20
(cont.)
M
M
3
P
P M
P
M
M
M
Control extension well circuit/groundwater
D
(part no. ZK02828)
Control extension geothermal probe
E
(part no. ZK02827)
Waste heat
F
Pos. Designation
3-way diverter valve, central heating/DHW heat-
3
ing
Primary pump
4
Secondary pump
5
Outside temperature sensor
6
Safety assembly, secondary circuit
7
Expansion vessel
8
Geothermal probe
9
Geothermal probe manifold
qP