Foresee gate valves at intake and output (before and after the circulator) to allow
the disassembly without emptying the plant. The assembly of the interception organs
must be carried out in such a way as to prevent possible water leaks from involving the
terminal board.
Perform the assembly without mechanical stresses acting on the circulator.
Avoid the installation in misaligned pipe work.
Install the circulator with horizontal motor shaft axis (fig. A).
The direction of the water flow is indicated by the arrow on the pump body, as
shown in fig. B.
The motor body can be rotated in the positions shown in figure C.
Pay utmost care to prevent people from getting in contact with the hot
surfaces of the circulator.
After having loosened the four screws M5 (fig. D), rotate the motor body without
extracting it from the pump body. The tightening torque of the screws of the pump
body must correspond to a value of 3.3 ± 0.5 Nm.
CAUTION!
3.2 electric connection
The electric connection has to be performed by a qualified electrician in compliance
with the national regulations. follow the safety regulations and installation
regulations of your country.
The connection to the mains must be carried out in compliance with
the standards incorporating in the fixing wiring a disconnection device
from the supply mains having a contact separation in all poles that
provide full disconnection under overvoltage category III conditions.
All electric information concerning the circulator is on the signaling plate.
The connection cord must be laid in such a way as it cannot come
in contact with the hosing or the motor body. In case of use of
the circulator with fluids at a temperature higher than 70 °C, use a
connection cord resistant to high temperatures.
Connect the power supply conductors to the terminals according to the diagram
given in fig. F.
Insert the terminal board (fig. G) in the proper seat (fig. H), connecting the blue wire
(neutral) with letter N and the black/brown wire (phase) with letter L. Screw the two
screws (fig. I) and tighten the sealing nuts (fig. L) to the fairlead.
The circulator belongs to class II and therefore grounding is not necessary.
The circulator does not require any external protection of the motor.
Compare the frequency and the voltage of the mains with the rating data.
The warning light (LED), if lighted, indicates that the power supply is present.
Pay attention not to damage the seal of the pump body.
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