Notes On The Documentation; Observing Other Applicable Documents; Working With The System Assistant; Key For The Symbols - Vaillant aroTHERM VWL Series Manual

2 Notes on the documentation

2 Notes on the documentation
2.1

Observing other applicable documents

▶
Always follow all the operating and installation instruc-
tions included with the system components.
2.2

Working with the system assistant

The system assistant is used to help with the system installa-
tion and start-up. The important steps are shown, depending
on the selected basic system diagram. All other necessary
instructions and information are described in the instructions
for the system components.
▶
Use the references to the instructions.
▶
Follow the information, directions and instructions that
are described here.
The settings on the control for the indoor unit and/or the
system control refer to the basic system diagram that was
shown before.
▶
Configure the system in accordance with the end user's
requirements.
▶
Adjust the system settings to the local conditions.
2.3

Key for the symbols

Symbol Meaning
Cooling
Air heat source
2.4

Key for the system components

Compon- Meaning
ent
2c outdoor unit refrigerant split
2d indoor unit refrigerant split
3e circulation pump DHW
4 buffer cylinder
8a expansion relief valve
8b expansion relief valve drinking water
8c safety assembly drinking water connection
8f expansion vessel drinking water
9a single room temperature control valve (thermo-
static, motorized)
9d bypass valve
12 system control
12k overheat protection thermostat
12m outdoor temperature sensor
12q VR 920 communication unit
4
System assistant 0020243831_00