Installation Alternative - Nibe VPB Series Installer Manual

Connecting hot water circulation
VPB/VPBS R and E have a connection that allows hot
water circulation.
To reduce the risk of bacterial growth in systems with
hot water circulation, the temperature of the circulating
water should not fall below 50 °C. There should not be
any non-circulatory hot water pipes. Adjust the hot
water system so that the temperature does not fall
below 50 °C at the ends of the system.
12 Chapter 4 | Pipe connections

Installation alternative

VPB/VPBS can be connected in several different ways,
one of which is shown here.
Further option information is available at www.nibe.eu
and in the respective assembly instructions for the heat
sources used.
Symbol key
Symbol Meaning
Venting valve
Shut-off valve
Mixing valve
Safety valve
Temperature sensor
Expansion vessel
Pressure gauge
P
Circulation pump
Particle filter
VPB/VPBS