Pipe Connections; General; Dimensions And Pipe Connections - Nibe VPB Series Installer Manual

4 Pipe connections

General

Pipe installation must be carried out in accordance with
current norms and directives.
Internal support bushes should be fitted when a plastic
pipe or annealed copper pipe is used. The water heater
must be fitted with the requisite valves, such as a safety
valve, shut-off valve, non-return valve, and vacuum valve.
An overflow pipe must be routed from the safety valve
to a suitable drain. The size of the overflow pipe must be
the same as on the safety valve. Route the overflow pipe
from the safety valve enclosed along its entire length and
ensure that it is frost proof. The outlet of the overflow
pipe should be visible and clearly away from any electrical
components.
*Not VPB Cu
8 Chapter 4 | Pipe connections
Dimensions and pipe connec-
tions
VPB 200/VPB 300
VPBS 300
Connection
XL3 Cold water Ø
XL4 Hot water Ø
XL5* Hot water circulation Ø
XL8 Docking connection, flow line Ø
XL9 Docking connection, return line
Ø
XL13 Solar flow line Ø
XL14 Solar return line Ø
mm 22
mm 22
mm 15
mm 22
mm 22
mm 22
mm 22
VPB/VPBS