19
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.
Description
A
3 additional heating circuits (
only
heating), controlled by the slave heat pump
B
Cascade (max. 2 heat pumps)
Heat pump communication via Modbus Ethernet
With external Modbus communication: Modbus Ethernet connection to master heat pump
C
Primary
D
Secondary
1
Heat pump
2
Heat pump control unit
3
3-way diverter valve for "central heating/DHW heating"
4
Primary pump
5
Secondary pump
6
Outside temperature sensor
7
Safety assembly, secondary circuit
8
Expansion vessel, secondary circuit/residual heat circuit
9
Expansion vessel, primary circuit/residual heat circuit
qP
Geothermal probe manifold
Safety assembly, primary circuit
qW
Pressure switch, primary circuit
qE
Frost stat
qR
System separation, groundwater
qT
Flow switch, groundwater
qZ
Filter, groundwater
qU
Circulation pump, groundwater
wP
External heat generator
wQ
External heat generator control unit
wW
Outside temperature sensor
wE
System flow temperature sensor
wR
External heat generator mixer
eP
DHW cylinder
eQ
Cylinder temperature sensor, top
eW
Electric booster heater
eE
Cylinder loading pump
eR
Heat exchanger, cylinder loading system
eT
Flow limiter
eZ
3-way mixer
eU
DHW circulation pump
eI
Flow temperature sensor, cylinder heating
eO
Cylinder temperature sensor, bottom
tP
Heating water buffer cylinder
tQ
Buffer temperature sensor, top
tW
Buffer temperature sensor, bottom
uP
3-way diverter valve, cooling mode
Preparing for installation
Hydraulic connection requirements
(cont.)
5789 986 GB
Installation
