Vaillant VPS R 100/1 M - Page 70

5 Installation
68 Installation and maintenance instructions 0020244064_00
Caution.
Risk of damage caused by corrosion.
If non-diffusion-tight plastic pipes are used in
the heating installation, this may cause air to
enter the heating water and corrosion of the
heat generation circuit and the boiler.
▶ If using non-diffusion-tight plastic pipes
in the heating installation, separate the
system by installing an external heat ex-
changer between the boiler and the heat-
ing installation.
1. Attach a drain cock at the lowest point in the system.
2. Depending on your system, connect the circuits in ac-
cordance with the basic drawing shown below.
Applicability: VPS R 200/1 B
1
▶ Connect a drain cock to the drain connection on the
cylinder.
▶ If you do not connect a drain cock, attach the drain
plug (1) in order to guarantee the leak-tightness of the
cylinder.
5.1.2 Basic hydraulic connection diagram
5.1.2.1 Case no. 1
2
1
2
1
3
4
4
3
1 Heat pump
2 Boiler
3 Heating circuit
4 Plug
5.1.2.2 Case no. 2
1
1
2
3
3
3
3
2
1 Heat pump
2 Heating circuit
3 Plug
5.1.2.3 Case no. 3
1
3
3
3
3
3
1
2
3
2
1 Heat pump
2 Heating circuit
3 Plug