Danger
Live connections can cause electro-
cution. Disconnect the heater from
the power supply before making the
electrical connections.
When you have mounted the
vrnetDIALOG 820 in the supplied
housing on the wall, you must fit the
protective cover in the housing.
Caution
Do not extend the connection cable
for the heating appliance (X80) as
otherwise the function of the
vrnetDIALOG may be impaired.
5.1
Earthing the vrnetDIALOG
(analogue only)
The vrnetDIALOG must be earthed for opera-
tion. Use the green and yellow earthing cable
supplied.
Installation Manual for vrnetDIALOG
Electrical installation 5
1
Fig. 5.2 Earthing for vrnetDIALOG 820
• Plug the terminal of the earthing lead into
the contact (1) on the board of the
vrnetDIALOG.
• Connect the other end of the earthing lead
to a point such as the earth potential of the
pump connection or the low-voltage termi-
nal.
GB
11