Electrical Specifications; Current, Voltage And Power Ratings; Pump Installation; Installation Into Pipelines - IMP PUMPS NMT Mini Series Installation And Operating Manual


Operation outside recommended conditions may shorten pump lifetime and could void the
warranty.

Operation at edge conditions can shorten pump lifespan.
3.4

ELECTRICAL SPECIFICATIONS

3.4.1

CURRENT, VOLTAGE AND POWER RATINGS

Pump
NMT Mini XX/30
NMT Mini XX/40
NMT Mini XX/60 reduced voltage with limited
NMT Mini XX/80
4

PUMP INSTALLATION

4.1

INSTALLATION INTO PIPELINES

The arrows on the hydraulic casing and thermal insulation indicate the direction of the medium flow. For the
pump to operate with minimal vibrations and noise it should be installed into pipelines with its 1-1 axis in a
horizontal position. Pipes should be without curves for at least 5-10 D (D = rated pipe diameter) from the first
curve.
Desired head orientation can be achieved by rotating the pump head (allowed positions shown in figure 1. Pump
head is mounted on the hydraulic casting with four screws. The pump head can be turned by unscrewing the four
screws (figure 3). When reassembling care should be taken to ensure the seal fit. Failing to ensure seal fit could
cause leaking of water into and damage to internal pump parts.
Pump ambient should be dry and well lit. The pump is sealed from dust and water according to its
IP class.

Misconnection or overload could cause pump shutdown or even permanent damage.

The pump doesn't have a ventilation screw. It is ventilated together with the system. Air in
the pump can cause noise, which will disappear after a short working period.

The pump must not be used in the safety pipelines.

Glands must be tightly screwed.

When used in climate systems remove thermal insulation from the pump.

The pump should not be used as a handle for welding the pipe system since it can be
damaged.

If the gasket between the electro-motor part of the pump and the console is not correctly
installed, the pump will not be watertight and there is a danger of damage to the pump.
 There are openings for condensate drain on the housing of the electric motor, these must
remain free (must not be thermally insulated), as this may interfere with the cooling of the
engine or the discharge of condensed water (figure 2).
 Hot media poses a threat of burns. The pump motor can reach a dangerous temperature
which poses danger to health.
Electrical ratings
Rated voltage
230 VAC ± 15 %, 47-63Hz
Pumps can operate at
power (P=Imax*U)
P [W] P [W]
min max
15
20
1
35
50
I [A] I [A]
min max
0,15
0,2
0,05
0,3
0,4