English (GB)
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12.3 ALPHA plugs
* This special cable with an active built-in NTC protection
circuit, reduces possible inrush currents. To be used in case of
for instance poor quality of relay components that are
sensitive to inrush current.
12.4 ALPHA Reader
The ALPHA Reader unit MI401 is the receiver and transmitter of
pump performance data. The unit broadcasts the measured data
from the pump to an Android or iOS-based mobile device via
Bluetooth. The unit uses a small lithium battery.
The unit is together with the Grundfos GO Balance app used for
balancing heating system primarily in one- and two-family
houses. The app guides you through a number of steps where
information on installation and measurements from the pump is
being collected. In a two-pipe system or an underfloor heating
system, the app calculates the balancing values for each of the
valves. On the basis of these values, the app guides you through
the adjustment of each presetting valve in the system.
The app is available for both Android and iOS devices, and you
can download it free of charge from Google Play and App Store.
13. ALPHA SOLAR
13.1 Product introduction
Fig. 45 ALPHA SOLAR pump
The ALPHA SOLAR is designed to be integrated in all kinds of
thermal solar systems with either variable or constant flow rate.
High-efficiency ECM (Electronically Commutated Motor) pumps,
such as ALPHA SOLAR, must not be speed-controlled by an
external speed controller varying or pulsing the supply voltage.
The speed can be controlled by a low-voltage PWM (Pulse Width
Modulation) signal from a solar controller to optimise the solar
harvesting and temperature of the system. As a result, the power
consumption of the pump will be reduced considerably.
If no PWM signal is available, you can set ALPHA SOLAR to
operate at constant speed / constant curve, only switched on and
off by the controller.
TM06 5823 0216
Pos. Description
Product
number
Available
1
ALPHA straight plug,
standard plug connector,
complete
98284561 spare part
2
ALPHA angle plug, standard
angle plug connection,
complete
98610291 accessory
3
ALPHA plug, 90 ° bend to the
left, including 4 m cable
96884669 accessory
*
ALPHA plug, 90 ° bend to the
left, including 1 m cable and
integrated NTC protection
resistor
97844632 accessory
ALPHA SOLAR cables and plugs can be delivered
on request.
TM06 8574 1517
Description Product number
ALPHA reader MI401 98916967
TM06 5816 0216
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