Grundfos Magna Installation And Operating Instruction

7
4. External forced control
The GENI module incorporates inputs for external signals for the forced-con-
trol functions:
• Max. curve duty.
• Min. curve duty.
See connection examples on pages 103 to 106.
Functional diagram: Max. curve input:
The max. curve input is only active if the terminals of the start/stop input are
connected.
Functional diagram: Min. curve input:
The min. curve input is only active if the terminals of the start/stop input are
connected and the input for max. curve is open.
Max. curve
Normal duty
Max. curve
Min. curve
Normal duty
Min. curve
Q
H
Q
H
Q
H
Q
H

Grundfos Magna Specifications

General

Frequency	50/60 Hz
Temperature Range	-10 °C to +110 °C
Type	Circulator Pump
Maximum Operating Pressure	10 bar
Insulation Class	F
Series	Magna
Material	Cast iron
Voltage	1 x 230 V / 3 x 400 V (depending on model)