Pressure Drop Diagram; Electrical Connections - Nibe VPB 500 UK Installation And Maintenance Instructions Manual

Pipe installation
The water heater must be supplied with a thermometer
and pressure gauge as well as shut-off valve, drain valve,
non-return valve, mixing valve, safety valve, and vacuum
valve as per applicable standards.
The supplied drain valve with corresponding plug is in-
stalled as follows:
1. Remove the compression ring and compression ring
nut from the drain valve.
2. Install the valve using the existing compression ring
and compression ring nut on the drain pipe.
3. Replace the compression ring with a plug on the open
part of the drain valve.
The heater must be supplied with a mixing valve, which
limits the temperature of outgoing hot water to 60°C.
If this valve is not fitted, some other measure must be
taken to prevent the risk of scalding.
The expansion relief valve must be set to 6 bar
(0.6 MPa). The overflow pipe must be the same size as
the valve. The overflow pipe must be routed downwards
along its entire length and be frostproof. It must run
freely over a drain.
Note!
Fit the cover discs before commencing pipe
installation.

Pressure drop diagram

Primary side (coil).
40
35
30
25
20
15
10
5
0
0 0,1 0,2

Electrical connections

Note!
Electrical installation and service must
be carried out under the supervision of a
VPB 500 can be supplemented with an immersion heat-
er with a maximum output of 9 kW.
The immersion heater is supplemented with junction
box type K11 (2 pole thermostat, 3 pole temperature
limiter). Do not modify or reconnect!
Separate supply from group central is routed to the im-
mersion heater.
Note!
The water heater must be completely filled
with water before it is connected on the
VPB 500 UK
Pressure drop, coil
Tryckfall värmebärarslinga
VPB 500
VPB 750
0,3 0,4 0,5 0,6 0,7 0,8
Flow (l/s)
Flöde (l/s)
qualified electrician.
electrical side.
Installation
VPB 1000
0,9 1 1,1
5 5 5