Installation Instructions

Overview of the equipment 4
0020147164_04 aroTHERM Installation instructions 9
3 Ribbed pipe heat ex-
changer
4 Temperature sensor of
the ribbed pipe heat ex-
changer
5 4-way valve
6 Return heating circuit
temperature sensor
7 High-efficiency pump with
flow sensor
8 Purging valve
9 Flow heating circuit tem-
perature sensor
10 Drain valve
11 Plate heat exchanger
12 Temperature sensor after
the plate heat exchanger
13 Service valve for the high-
pressure range of the
coolant circuit
14 High-pressure pressure
switch in the coolant cir-
cuit
15 High-pressure sensor in
the coolant circuit
16 Compressor outlet temper-
ature sensor
17 Rotary piston compressor
18 Filter
19 Liquid separator
20 Electronic expansion valve
21 Compressor inlet temper-
ature sensor
22 Service valve for the low-
pressure range of the
coolant circuit
23 Flow rate limiter (cooling
mode) on the VWL 85/2 A
230 V only
24 Filter
25 Gas buffer
A Heating return
B Heating flow
4 Overview of the equipment
4.1 Type designation and serial number
1
1
The type designation and serial number are on the identifica-
tion plate (1).
4.2 Information on the identification plate
Information on the identi-
fication plate
Meaning
Serial no. Unique unit identification number
P max Maximum rated power
I Max. operating current
I max Maximum start-up current
R410A Coolant type and fill quantity
PS
R
_LP
PS
R
_HP
Min. and max. operating pres-
sure in the coolant circuit
Information on the identi-
fication plate
Meaning
PS
H
min
PS
H
max
Minimum and maximum operat-
ing pressure in the heating circuit
COP (Ax/Wxx) Output figure (coefficient of
performance) at an air inlet
temperature of xx °C and a
heating flow temperature of
xx °C
(Ax/Wxx)
Heating output at an air inlet
temperature of xx °C and a
heating flow temperature of
xx °C
Volt Compressor, pump and control-
ler mains voltage
Hz Power frequency
IP Protection class
5 Assembly and installation
5.1 Preparing for fitting and installation
5.1.1 Delivery, transport and positioning
5.1.1.1 Transporting the product
Warning.
Risk of injury from lifting a heavy weight.
Lifting weights that are too heavy may cause
injury to the spine, for example.