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Beschikbare talen
Beschikbare talen
Never insulate the electronic control device.
-
In the case of maintenance, always use a set of new gaskets.
5.2.
Rotation of the Motor Heads
If the circulator is installed on pipes in a horizontal position, it will be necessary to rotate the
motor with the respective electronic device through 90 degrees in order to maintain the grade
of IP protection and to allow the user a more convenient interaction with the graphic interface
(see Figure 2-3).
Before rotating the circulator, ensure that it has been completely drained.
Should it be necessary to rotate the motor heads, follow the instructions below with care to
ensure correct installation:
1.
Unscrew the 4 screws fixing the motor assembly to the pump body (figure A).
2.
Rotate the motor assembly keeping it in the seat where it couples with the pump body
(figure A-B).
3.
Once the head has been rotated into the desired position, tighten the 4 screws, always
proceeding in cross formation (figure C).
If the motor assembly has been removed from its seat, pay the greatest attention during
assembly, taking care to insert the impeller completely in the floating ring before tightening
the retaining screws (figure D). If it has been correctly assembled, the motor assembly rests
completely on the pump body.
Incorrect assembly may damage the impeller, causing a typical rubbing
noise when the circulator starts.
The electronic control device must always remain in vertical position!
Ensure that the connecting cable of the pressure sensor never comes in
contact with the motor casing.
5.3.
Non-return valve
If the system is equipped with a non-return valve, ensure that the minimum pressure of the
circulator is always higher than the valve closing pressure.
6.
ELECTRICAL CONNECTIONS
The electrical connections must be made by expert, qualified personnel.
-
The circulator does not require any external motor protection.
-
Ensure that the supply voltage and frequency are the same as the values indicated on
the electrical data plate of the circulator.
Figure 4: Electrical connections (front)
Reference
(Figure 4 and Figure 5)
Pull-out terminal board for connection of the supply line:
1
1x220-240 V, 50/60 Hz
2
auxiliary LED
3
system live indicating LED
4
Connector for connecting twin circulators
Connector for connecting the fluid pressure and temperature sensor
5
(standard)
Pull-out 13-pole terminal board for connecting the inputs and the
6
MODBUS systems
7
Pull-out 6-pole terminal board for alarm signals and system status
Table 1 Electrical connections
ENGLISH
Figure 5: Electrical connections (rear)
Description
GB
14
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