IMP Pumps NMT(D) SMART (C) - Manual (Page 16)

-16-
GB
Before starting the pump, the pump must be filled with the medium, and the
air completely bled out of the system. For proper operation, pressure must
be maintained on the suction side of the pump. The pump does not have
screws for bleeding the air, as it is automatically bled with the system. The
air in the pump generates noise. This disappears after a short time and the
pump operates normally.
WARNING!
• The maximum pressure in the system is 1 MPa (10 bar).
• The pump must always be filled with the pumped medium!
• The pump’s openings and electric motor housing (Figure 3.1, detail A)
between the hydraulic housing and the electric motor housing should
not be insulated, since the thermal insulation might prevent cooling and
condensate drain from the pump’s motor housing.
• During operation, the pump heats up, or is heated by the pumped medium,
and should not be touched – risk of burns. The permitted working area of
the pump is defined by the diagram in these instructions.
4. Electrical connection
Connection of the pump must be carried out by qualified personnel.
Connection to the power supply is carried out with the enclosed connector,
the mounting of which is shown in the picture accompanying the connector.
The electric connection of the pump to the network (1~230V, 50Hz) must be
done with the appropriate power cord (equivalent to a 3G 1 mm ², H05RR-F
connection cable). When connecting the pump, the following must be
considered:
• the device for separating all the phases from the power supply must
be installed in the electric installation in accordance with the national
installation regulations,
• connection of the connecting cable must be done in a manner that
ensures it is never in contact with the casing of the device, due to the
high temperatures of the casing,
• the device should not be used by persons (including children) with
reduced physical, sensory or mental abilities, or with lack of experience
or knowledge, unless they are supervised or instructed on the use by a
person responsible for their safety,
• children should always be supervised to prevent playing with the device.