23
E
Extension for heating circuit 2 (HC2), ZK03863
F
Extension for heating circuit 3 (HC3), ZK03864
G
Extension for heating circuit 4 (HC4), ZK03865
H
Extension for cooling via HC1, ZK03866
L
Extension for cooling via HC2, ZK03867
M
Extension for cooling via HC3, ZK03868
N
Extension for cooling via HC4, ZK03869
O
Extension for DHW heating, DHW cylinder,
ZK03856
P
Extension for DHW heating freshwater module,
ZK03857
R
Extension for DHW heating with oil/gas boiler,
ZK03855
S
Extension for heat generator 2 (oil/gas boiler),
ZK03854
T
AC/NC extension (AC/NC parallel and alterna-
tive), ZK03859
U
NC extension, ZK03858
V
Non-return valve
■
For cascades: For master and slave heat
pump, one each downstream of primary
pump
■
Without 3-way mixer high temperature main-
tenance: Downstream of secondary pump
W
NC extension parallel to AC, DC03860
X
Standard unit
Y
External natural cooling
External start command
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.
Equipment required
Pos.
Designation
1
Heat pump
2
Heat pump control unit
3
2-way motorised damper, heating water buffer cylinder outlet
4
Primary pump
5
Secondary pump
6
Outside temperature sensor
7
Safety assembly, secondary circuit
8
Expansion vessel
9
Geothermal probes
qP
Geothermal probe manifold
Safety assembly, primary circuit
qW
Pressure switch, primary circuit
qR
Separating heat exchanger groundwater/brine
qT
Flow switch on the primary side
qZ
Dirt filter
qU
Circulation pump, well/groundwater
qI
Refrigerant sensor
qO
Flow switch coolant buffer cylinder
wP
External heat generator
wQ
External heat generator control unit
wE
Temperature sensor, heating circuit main flow
wR
3-way mixer, heating circuit main flow
eP
DHW cylinder
eQ
DHW cylinder temperature sensor, bottom
eW
Immersion heater, DHW cylinder
eE
Cylinder loading pump, high temperature maintenance, DHW heating
eR
Freshwater module
eT
DHW cylinder temperature sensor, top
eZ
Circulation pump, external heat generator
eU
DHW circulation pump
eI
Temperature sensor, high temperature maintenance, DHW heating
Preparing for installation
Hydraulic connection requirements
(cont.)
5837251
Installation