Alpha 47 532 69 - Page 7

Fig. 3.2
3.5.2 E-Tec 33 Available Pump Head and Power Consumption
Alpha E-Tec 28 and 33 - Technical Data
3.5.1 E-Tec 28 Available Pump Head and Power Consumption
A+B = Head available with by-pass closed
B = Head available with by-pass open
C+D = Power consumed by the pump with by-pass open (dotted area)
D = Power consumed by the pump with by-pass closed (dotted area)
Pump electrical consumption (W)
0
10
20
30
40
50
60
70
Flow rate (l/h)
200 600 1000 1400800 1200 16004000
0
1
2
3
4
5
6
7
Head (m water)
Speed 9
Speed 9
Speed 6
A
C
B
D
Fig. 3.1
A+B = Head available with by-pass closed
B = Head available with by-pass open
C+D = Power consumed by the pump with by-pass open (dotted area)
D = Power consumed by the pump with by-pass closed (dotted area)
Pump electrical consumption (W)
0
10
20
30
40
50
60
70
Flow rate (l/h)
200 600 1000 1400800 1200 16004000
0
1
2
3
4
5
6
7
Head (m water)
Speed 9
Speed 9
Speed 5
C
D
B
A
Pump with LED and UPM3 W3 (Wave 3) electronics ONLY
When the pump is running, the LED lights with a steady green light.
When the pump switches on, the green LED flashes at a higher intensity and then returns to normal intensity with a steady
green light.
If the pump detects an alarm, the LED switches from green to red which can mean one of the following:
a - Low supply voltage.
b - Seized rotor.
c - Electrical fault.
To see in detail the meaning of the red LED, please refer to the end of Section 10.2 under pump fault.
The LED in addition to being green or red, can also remain off. It is normal for the LED to be off when the pump is
not running whereas with the pump running the LED must be lit, if it is not it means there is a fault.
Pump with UPM4 electronics ONLY
When the pump is running, the symbol
flashes with green light.
When the pump power supply on, the symbol
is steady with green light.
If the pump detects an alarm, the symbol
is steady with red light.
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