Technical Data - Grundfos ALPHA1 L Instrucciones De Instalación Y Funcionamiento

10. Technical data

Operating conditions
Sound pressure level
Relative humidity
System pressure
Inlet pressure
Ambient temperature
Liquid temperature
Liquid
Viscosity
Electrical data
Supply voltage
Insulation class
Miscellaneous data
Motor protection
Enclosure class
Temperature class (TF)
Specific EEI values
To avoid condensation in the control box and stator, the liquid
temperature must always be higher than the ambient
temperature.
In domestic hot-water systems, we recommend that
you keep the liquid temperature below 65 °C to
eliminate the risk of lime precipitation.
The sound pressure level of the pump is lower than 43 dB(A)
Maximum 95 %, non-condensing environment
PN 10: Maximum 1.0 MPa (10 bar)
Liquid temperature
75 °C
95 °C
0-55 °C
2-95 °C
Maximum water/propylene glycol mixture is 50 %
2
Maximum 10 mm /s
1 x 230 V - 15 %/+ 10 %, 50/60 Hz, PE
F
The pump requires no external motor protection.
IPX4D
TF95
ALPHA1 L XX-40: EEI ≤ 0.20
ALPHA1 L XX-60: EEI ≤ 0.20
ALPHA1 L XX-65: EEI ≤ 0.23
Minimum inlet pressure
0.005 MPa, 0.05 bar, 0.5 m head
0.05 MPa, 0.5 bar, 5 m head
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