Description Of The Product; Product Design - Vaillant aroTHERM VWL 35/5 AS 230V S2 Operating Instructions Manual

limited compressor rotational speed and an adjusted fan
speed.
3.4

Description of the product

The product is the outdoor unit of an air-to-water heat pump
with split technology.
The outdoor unit is connected to the indoor unit via the refri-
gerant circuit.
3.5

Product design

3.5.1 Unit
1
1 Air outlet grille
1
6
5
1 Fan
2 Evaporator
3 INSTALLER BOARD
PCB
52
2
2 Cover for the hydraulic
connections
2
3
4
4 HMU PCB
5 Compressor
6 INVERTER assembly
3
2
1 Temperature sensor at
the air inlet
2 Air inlet grille
3.5.2 Compressor assembly
8
7
6
5
4
3
2
1
18
1 Temperature sensor
upstream of the com-
pressor
2 Refrigerant separator
3 Maintenance connection
in the high-pressure
area
4 Compressor
5 Temperature sensor
downstream of the
compressor
Installation and maintenance instructions 0020257297_07
1
3 Cover for the electrical
connections
9
10
11
12
13
14
15
16
17
6 Pressure sensor
7 Pressure switch
8 4-port diverter valve
9 Temperature sensor at
the evaporator
10 Maintenance connection
in the low-pressure area
11 Refrigerant buffer
12 Electronic expansion
valve