Grundfos alpha2l User Manual

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13.1 Guide to performance curves
Each pump setting has its own performance curve (Q/H curve).
A power curve (P1 curve) belongs to each Q/H curve. The power curve
shows the pump power consumption (P1) in Watt at a given Q/H curve.
The P1 value corresponds to the value that can be read from the pump
display. See fig. 17:
Fig. 17 Performance curves in relation to pump setting
For further information about pump settings, see
6.3 Light fields indicating the pump setting
7. Setting the pump
10. Pump settings and pump performance.
TM04 2534 2608
AUTO
ADAPT
III
II
I
PP1
PP2
CP1
CP2
Q
P1
H
Q
III
II
I
ON
POWER
Setting Pump curve
PP1 Lowest proportional-pressure curve
PP2
(factory setting)
Highest proportional-pressure curve
CP1 Lowest constant-pressure curve
CP2 Highest constant-pressure curve
III Constant speed, speed III
II Constant speed, speed II
I Constant speed, speed I

Grundfos alpha2l Specifications

General

Voltage	230 V
Protection Class	IP42
Maximum Operating Pressure	10 bar
Enclosure Class	IP42
Insulation Class	F
Pump Housing	Cast iron
Type	Circulator pump
Frequency	50 Hz
Approvals	CE
Connection	G 1"
Ambient Temperature	Up to 40°C