5
Installation
DANGER!
Danger due to electric current!
When working with power cables, there is an imme-
diate danger of severe, or even fatal, injury due to
electric current.
– Ensure that the cable is not live when performing
installation work.
– Only have work on electric cables performed by
an electrician.
– Never connect voltage to open cables.
– Before connecting the cable to voltage, ensure
that no persons are near electric cables.
NOTICE!
Damage to the pump due to dry operation!
The controller is a component of the heat interface
unit. The controller and the heat interface unit draw
energy from the same connector. If the controller is
connected to the mains power before filling the heat
interface unit, then the pumps operate dry and will
be damaged.
– Fill the heat interface unit before connecting the
controller to the mains power.
The controller is prewired and ready-to-plug. The
operating company only needs to produce the fol-
lowing connections:
–
Input HTG demand
–
Remote off (optional)
–
Power cable
Personnel:
n
Electrician
1.
Open the controller box.
2.
Connect the wiring in accordance with the terminal diagram
17).
A number of connections must be potential-
3.
Close the controller box and screw the housing together.
4.
Ensure that there is a socket available and it is protected from
short circuit by means of a residual current device.
Electric current
Dry operation (damage to pump)
Installation
Fig.
11:
Terminal block
H3000 E
Installation
01/2023
Item no. 215251
EA no. EA-1291
Operating instructions
23
