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▶ Make sure the cold and hot water tubes are duly identified,
in order to avoid confusion.
Fig. 12
[1] Cold water inlet (right)
[2] Hot water outlet (left)
▶ Use suitable connection accessories for the hydraulic
connection of the appliance.
Fig. 13
[1] Galvanic insulation
[2] Discharge valve
[3] Non-return valve
[4] Reducer valve
[5] Shut-off valve
[6] Drainage connection
[7] Expansion vessel
[8] Mixing valve
Tronic 1000 T | Tronic 2000 T – 6721831855 (2021/06)
Electrical connection (only for approved contractors)
To avoid problems caused by sudden pressure changes in the
supply system, it is advisable to assemble a check valve
upstream of the appliance.
If there is a risk of freezing:
▶ Disconnect the appliance from the electricity.
▶ Vent the appliance ( chapter 4.6).
-or-
▶ Do not disconnect the appliance from the electric current.
▶ Select the lowest water temperature.
5.5
Pressure relief valve
▶ Install a pressure relief valve in the appliance water inlet.
WARNING
Risk of damage to property!
▶ Never close off the pressure relief valve drain.
▶ Never install accessories between the pressure relief valve
and the cold water connection (on the right) of the
electrical DHW tank.
If the water inlet pressure is between 1.5 and 3 bar, it is not
necessary to install a pressure reducing valve.
If the water inlet pressure is above these values, it is necessary:
▶ install a reduce valve (Fig. 13, [4]). The pressure relief
valve is always triggered once the water pressure in the tank
exceeds 8 bar (± 1 bar), and the discharge water then
needs to be channelled off.
▶ install an expansion vessel (Fig. 13, [7]) to avoid opening
the pressure relief valve so frequently. The volume of the
expansion vessel must be equivalent to 5% of the appliance
volume.
6
Electrical connection (only for approved
contractors)
General information
DANGER
Risk of electric shocks!
▶ Disconnect the power supply before carrying out any work
on the device.
167
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