Technical Specifications; Standards And Protections; Pump Medium; Temperatures And Ambient Humidity - IMP Pumps NMT Mini Serie Installations- Und Bedienungsanleitung


The pump can be upgraded or modified only with an agreement from the manufacturer.

Manual must be kept near the pump.
3

TECHNICAL SPECIFICATIONS

3.1

STANDARDS AND PROTECTIONS

Pumps are made according to the following standards and protections:
Protection class:
IP44
Insulation class:
155 (F)
Motor protection:
Thermal - built in
Allowed nominal pressure
1MPa (10 bar)
3.2

PUMP MEDIUM

Pump medium can be pure water or a mixture of pure water and glycol, which is appropriate for a central heating
system. Water must meet water quality standard VDI 2035. The medium must be free from aggressive or
explosive additives, free from mixtures of mineral oils and solid or fibrous particles. The pump should not be used
for pumping flammable, explosive media and in an explosive atmosphere.
Permanent magnet rotor inside the pump is prone to accumulating magnetic particles on its surface, which can
lead to abrasion of bearings and rotor can or even blocking the rotor. Although the pump is built in a way that
the effect of magnetic particles is minimal, failures of bearings, rotor cans, and blocked rotors are not a subject
of claims.
To improve pump resistance to magnetite we recommend the use of magnetite filter.

A pump should not run dry.
3.3

TEMPERATURES AND AMBIENT HUMIDITY

Ambient temperature [°C]
Up to 25
30
35
40

The medium temperature must be higher or the same as ambient temperature so that the
condensate doesn't gather on pump surfaces.
Permitted ambient and media temperature
Medium temperature [°C]
min.
-10
-10
-10
-10
Relative ambient
max humidity
110
100
90
80
<95 %