English (GB)
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6.8.5 Grundfos GO Remote
MAGNA1 single-head pumps are designed for infrared
communication (IR) with Grundfos GO Remote, while MAGNA1
twin-head pumps can also communicate via radio.
In order to communicate with Grundfos GO Remote via infrared,
you need an add-on module. Two variants are available as
described in the following.
MI 204
MI 204 is an add-on module with built-in infrared and radio
communication. You can use MI 204 in conjunction with an Apple
iPhone or iPod with Lightning connector.
Fig. 24 MI 204
Supplied with the product:
• Grundfos MI 204
• sleeve
• quick guide
• charger cable.
MI 301
MI 301 is a module with built-in infrared and radio
communication. Use MI 301 in conjunction with an Android or
iOS-based smart device with a Bluetooth connection. MI 301 has
a rechargeable Li-ion battery and must be charged separately.
Fig. 25 MI 301
Supplied with the product:
• Grundfos MI 301
• battery charger
• quick guide.
Product numbers
Together with the Grundfos GO module, you will need to
download the Grundfos GO Remote app, which is available in
Apple App Store and Google Play.
For function and connection to the pump, see the separate
installation and operating instructions for the desired type of
Grundfos GO setup.
7. Control functions
7.1 Proportional-pressure curve (PP1, PP2 or PP3)
Proportional-pressure control adjusts the pump performance to
the actual flow rate demand in the system, but the pump
performance follows the selected performance curve, PP1, PP2
or PP3. See fig. 26 where PP2 has been selected.
Fig. 26 Three proportional-pressure curves and settings
The selection of the right proportional-pressure setting depends
on the characteristics of the system in question and the actual
flow rate demand.
For further information, see section 7.4 Overview of the control
functions and 7.5 Selecting control function.
7.2 Constant-pressure curve (CP1, CP2 or CP3)
Constant-pressure control adjusts the pump performance to the
actual flow rate demand in the system, but the pump performance
follows the selected performance curve, CP1, CP2 or CP3. See
fig. 27 where CP1 has been selected.
Fig. 27 Three constant-pressure curves and settings
The selection of the right constant-pressure setting depends on
the characteristics of the system in question and the actual flow
rate demand.
For further information, see section 7.4 Overview of the control
functions and 7.5 Selecting control function.
7.3 Constant curve (I, II or III)
At constant-curve operation, the pump runs at a constant speed,
independently of the actual flow rate demand in the system. The
pump performance follows the selected performance curve, I, II
or III. See fig. 28 where II has been selected.
Fig. 28 Three constant-curve settings
The selection of the right constant-curve setting depends on the
characteristics of the system in question.
For further information, see section 7.4 Overview of the control
functions and 7.5 Selecting control function.
The radio communication between the pump and
Grundfos GO Remote is encrypted to protect against
misuse.
TM05 7704 1513TM05 3890 1712
Grundfos GO variant Product number
Grundfos MI 204 98424092
Grundfos MI 301 98046408
Factory setting: Intermediate proportional-pressure
curve, referred to as PP2.
TM05 5555 3812TM05 5556 3812TM05 5557 3812
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