Grundfos MAGNA1 C Installation And Operating Instructions

English (GB)
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4. Starting up the product
4.1 Single-head pump
Do not start the pump until the system has been filled with liquid
and vented. Furthermore, the required minimum inlet pressure
must be available at the pump inlet. See section 10. Technical
data.
The pump is self-venting through the system, and the system
must be vented at the highest point.
4.2 Twin-head pump
The pumps are paired from factory. When switching on the power
supply the heads will establish connection, which is indicated by
a green light in the center of the Grundfos Eye. Please allow
approximately 5 seconds for this to happen.
If one of the pump heads is turned off, the pump with power will
show a yellow indicator light (warning 77, see section 8. Fault
finding the product). In that case, power up the switched off
pump. Once both pumps are on, the pumps will establish
connection and the warning deactivates.
See sections 7.8.1 Digital input (Start/Stop), 7.8.2 Fault relay
output and 7.8.3 Twin-head pump function for additional
twin-head pump setup options.
4.3 Connecting the pump to Grundfos GO
It is possible to connect all single and twin head pumps to
Grundfos GO via infrared communication (IR). In addition, twin
head pumps can be connected to Grundfos GO via radio.
Grundfos GO allows you to adjust the set point of the proportional
pressure curve (see section 7.1.1 Adjusting the proportional
pressure using Grundfos GO), read out alarm codes (see section
8.2 Fault finding) and manage the fault relay trigger setting (see
section 8.2.1 Fault finding, twin-head pump).
Grundfos GO is available as an accessory,
The number of starts and stops via the power supply
must not exceed four times per hour.
Step Action Illustration
1
Switch on the power supply to the pump.
The pump starts after approximately 5 seconds.
TM05 5550 3016
2 Control panel at first startup.
TM05 5551 3016
3
The pump has been factory-set to the intermediate
proportional-pressure curve.
Select the control mode according to the system
application.
TM05 5551 3016
1 x 230 V ± 10 %
∽ 50/60 Hz
0/
Of
f
1/On
Make sure that both pump heads are powered on.

Grundfos MAGNA1 C Specifications

General

Liquid temperature range	-10°C to +110°C
Maximum operating pressure	10 bar
Enclosure class	IP42
Insulation class	F
Type	Circulator pump
Pump housing	Cast iron
Series	MAGNA1
Model	MAGNA1 C
Protection Class	IP42
Approvals	CE, EAC
Connection	Flange
Power Supply	1 x 230 V, 50/60 Hz
Weight	Varies by model