2 Notes on the documentation
52
Installation and maintenance instructions aroTHERM 0020257297_02
2
Notes on the documentation
2.1
Observing other applicable documents
▶
You must observe all the operating and installation in-
structions included with the system components.
▶
Observe the country-specific notes in the Country Specif-
ics appendix.
2.2
Storing documents
▶
Pass these instructions and all other applicable docu-
ments on to the end user.
2.3
Validity of the instructions
These instructions apply only to:
Product
VWL 35/5 AS 230V S2
VWL 55/5 AS 230V S2
VWL 75/5 AS 230V S2
VWL 105/5 AS 230V S2
VWL 105/5 AS S2
VWL 125/5 AS 230V S2
VWL 125/5 AS S2
Product
VWL 35/5 AS 230V
VWL 55/5 AS 230V
VWL 75/5 AS 230V
VWL 105/5 AS 230V
VWL 105/5 AS
VWL 125/5 AS 230V
VWL 125/5 AS
2.4
Further information
▶
Scan the displayed code using your smartphone in order
to view further information about the installation.
◁
You are guided to installation videos.
3
Product description
3.1
Heat pump system
Design of a typical heat pump system with split technology:
1
2
4
3
5
6
1
Heat pump, outdoor unit
2
eBUS line
3
System control (op-
tional)
4
Control for the indoor
unit
5
Heat pump, indoor unit
6
Refrigerant circuit
3.2
Cooling mode
Depending on the country, the product has the heating mode
or heating and cooling mode function.
Products that are delivered at the factory with no cooling
mode are labelled with "S2" in the nomenclature. For these
units, an optional accessory can be used to subsequently
activate the cooling mode.
3.3
Functions of the heat pump
The heat pump has a closed refrigerant circuit in which refri-
gerant circulates.
In heating mode, cyclic evaporation, compression, liquefac-
tion and expansion take in heat energy from the surround-
ings and transfer it to the building. In cooling mode, heat
energy is extracted from the building and released into the
environment.
3.3.1
Operating principle, heating mode
6
5
4
3
1
2
1
Evaporator (heat ex-
changer)
2
4-port diverter valve
Summary of Contents for aroTHERM Series
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