27
O
Extension for DHW heating, DHW cylinder,
ZK03856
P
Extension for DHW heating freshwater module,
ZK03857
R
Extension for defrosting with oil/gas boiler,
ZK03852 (function is part of the AW package)
S
Extension for heat generator 2 (oil/gas boiler),
ZK03854
T
AC/NC extension, ZK03859
U
Non-return valve
Without 3-way mixer high temperature mainte-
nance: Downstream of secondary pump
V
Standard unit
o-P
to
o-Z
: Extension for stem heating of dampers/
valves (ZK03861, function is part of the AW package),
heat source air (required for brine temperatures
< 0 °C)
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
Safety assembly, primary circuit
qW
Pressure switch, primary circuit
qZ
Dirt filter
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
eO
Heat exchanger, DHW heating
rP
Flow limiter DHW heating
tP
Heating water buffer cylinder
tQ
Buffer temperature sensor, top
tW
Buffer temperature sensor, bottom
uP
2-way motorised damper, primary circuit
uQ
Heat exchanger coolant buffer cylinder
iP
Coolant buffer cylinder
iQ
Circulation pump, coolant buffer cylinder
Preparing for installation
Hydraulic connection requirements
(cont.)
5837251
Installation