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Cold and hot water
Connecting cold and hot water
There must be a mixing valve if the temperature can ex-
ceed 60 °C.
The flexible hose to the expansion vessel can be installed
in the plugged connection on the safety valve.
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.
14
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.co.uk
and in the respective assembly instructions for the heat
pumps used.
Symbol key
Symbol
Meaning
Venting valve
Shut-off valve
Non-return valve
Mixing valve
Safety valve
T&P valve
Tundish
Temperature sensor
Circulation pump
Particle filter
VPB/VPBS UK
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