12. Technical data
Operating conditions
Sound pressure level
The sound pressure level of the pump is lower
than 32 dB(A).
Relative humidity
Max. 95 %
System pressure
Max. 1.0 MPa (10 bar)
Inlet pressure
Liquid temperature
Pressure
75 °C
0.005 MPa (0.05 bar)
95 °C
0.05 MPa (0.5 bar)
110 °C
0.108 MPa (1.08 bar)
Max. inlet pressure
1 MPa (10 bar)
Liquid temperature
Ambient temperature
Max. liquid temperature
60 °C
2-130 °C
70 °C
2-110 °C
Liquid
Max. water/propylene glycol mixture is 50 %
Note: The water/propylene glycol mixture
reduces the performance due to higher
viscosity.
Viscosity
Max. 10 mm
2
/s
Max. altitude of installation
2000 m above sea level
Electrical data
Supply voltage
1 x 230 V - 15 %/+ 10 %, 50/60 Hz, PE
Insulation class
F (EN 60335-1)
Standby power consumption
< 1 W
Inrush current
< 4 A
Minimum switching time power on/off
No specific requirements
Miscellaneous data
Motor protection
The pump requires no external motor
protection.
Enclosure class
IPX4D (with drain holes)
Temperature class (TF)
TF110 at 70 °C ambient temperature
Specific EEI values
ALPHA Solar 25-145 180
ALPHA Solar 15-75 130
ALPHA Solar 25-75 130
ALPHA Solar 25-75 180
≤ 0.20 Part 3
ALPHA Solar 25-145 N 180
ALPHA Solar 25-75 N 180
≤ 0.23 Part 3
Related information
12.1 Reduced supply voltage
The pump operation is ensured above 160 VAC with reduced
performance. If the voltage falls below 190 VAC, a low-voltage
warning is sent via the PWM signal. If the voltage falls below 150
VAC, the pump stops and shows an alarm.
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English (GB)
