Operating Guide
Termix VVX-B – 7 Series BS
Under floor heating:
Pump stop function
If the substation is used in connection with under floor heating, the
circulation pump must be connected to the pump stop function in
the under floor heating controller. The pump must be stopped if
all under floor heating circuits are closed.
Warranty
If this is not possible, then flow must be continued through the
by-pass. Failing this, the pump will be at risk of seizure and any
remaining warranty will be withdrawn.
4.3 Electrical connections
Before making electrical connections, please note the
following:
Safety notes
Please read the relevant parts of the safety notes.
230 V
The substation must be connected to 230 V AC and earth.
Potential bonding
Potential bonding should be carried out according
to 60364-4-41:2007 and IEC 60364-5-54:2011.
Bonding point on the mounting plate below right corner marked
with earth symbol.
Disconnection
The substation must be electrically connected so that it can be
disconnected for repairs.
Outdoor temperature sensor
Outdoor sensors should be mounted so as to avoid exposure to
direct sunlight. They should not be placed close to doors, windows
or ventilation outlets.
The outdoor sensor must be connected to the station on the
terminal block under the electronic control.
Authorized electrician
Electrical connections must be made by an authorized electrician only.
Local standards
Electrical connections must be made in accordance with current
regulations and local standards.
4.3.1 Thermoactuators
Activating the thermoactuators
The thermoactuators are supplied with a “first open” function, such
that they are slightly open for frost protection until the electrical
controller is installed. During commissioning, the “first open”
function is disabled by removing the red mounting split on the
thermoactuator.
Please check that the thermoactuators can fully close following
disablement of the “-first open” function.
See the installation guide included with the thermoactuator.
LGB40404
DEN-GT
7
