2.2.
Benefits of installation of PSI pumps. Ease of installation and launch
PSI series circulation pump has an auto-adaptation AUTO mode (factory settings).
In most cases, the pump can be launched without the necessity to introduce any
regulations and it can be automatically adapted to the current needs of the system.
High comfort of use
Low noise level of the pump and the entire system
Low power consumption
Compared to the traditional circulation pump, power consumption of the PSI series
pump is very low and can reach even 5W, depending on the system.
3.
CONDITIONS OF USE
3.1.
Permissible ambient temperature from 0 ° C to + 40 ° C.
3.2.
Maximum permissible relative humidity (RH) 95%
3.3.
Permissible heating medium tempe2
℃
～
95
℃.
To prevent condensation of
steam on the control panel and the stator, the temperature of the heating medium
circulating running through the pump must always be higher than the ambient
temperature.
3.4.
The permissible maximum pressure in the system is 1.0 MPa (10 bar)
3.5.
Protection rating IP 44
3.6.
Pump input signal
To avoid damaging pump bearings by cavitation, the following minimum pressure
must be maintained at the pump input:
Heating medium
temperature [
O
C]
<85
℃
90
℃
95
℃
Minimum input
pressure
0.05 bar
0.28 bar
0,5 bar
0.5 m of H
2
O column
2.8 m of H
2
O column
5 m of H
2
O
column
3.7.
Heating medium
Thin, clear and non-explosive liquid not causing corrosion does not contain any solid
particles, fibres or mineral oil. The pump cannot be used to transport inflammable or
explosive liquids such as vegetable oil or petrol. If the circulation pump is used to pump
highly viscous liquid, the pump effectiveness will drop. In such a case, a stronger pump
must be used to obtain proper parameters.
4.
INSTALLATION
4.1.
In installation, please pay attention to the flow direction of the heating medium. An
arrow on the pump body shows the flow direction forced by the pump. That direction
must be compliant with the circulation of the medium in the system.
4.2.
In installation, please use the bolts with rubber sealing included in the set.
4.3.
The pump should be installed in such a way that the pump shaft is horizontal