0020297933_07 Installation and maintenance instructions
61
3.6.2
Compressor assembly, front view
12
1
2
3
4
5
11
10
9
8
7
6
1
Automatic air vent
2
Pressure sensor in the
heating circuit
3
Filter
4
Condenser
5
Heating pump
6
Pressure switch in the
high-pressure area
7
Maintenance connection
in the high-pressure
area
8
Compressor
9
Pressure sensor in the
high-pressure area
10
Maintenance connection
in the low-pressure area
11
Electronic expansion
valve
12
4-port diverter valve
3.6.3
Compressor assembly, rear view
1
2
3
4
5
6
7
8
1
Filter
2
Pressure sensor in the
low-pressure area
3
Refrigerant separator
4
Refrigerant buffer
5
Connection for heating
flow
6
Connection for heating
return
7
Flow rate sensor
8
Temperature sensor at
the evaporator
3.7
Information on the data plate
The data plate is located on the right-hand side of the pro-
duct's exterior.
A second data plate is located inside the product. It becomes
visible when the top casing is removed.
Information
Meaning
Serial no.
Unique unit identification number
VWL ...
Nomenclature
IP
Protection class
Compressor
Control
P max
Rated power, maximum
I max
Rated current, maximum
I
In-rush current
MPa (bar)
Permissible operating pressure
Refrigerant circuit
R290
Refrigerant type
GWP
Global Warming Potential
kg
Fill quantity
