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9.3.2 Continuous operation - 24/7
This control mode ensures comfort 24/7
through continuous operation in constant curve III
with flow limits.
The flow limits are based on predefined pipe
diameters and flow limits (see below) to reduce
flow accelerated corrosion and noise in the
system. The predefined flow limits can be
changed via Grundfos GO.
•
1/2" 1.5 gpm)
•
3/4" (2.3 gpm)
•
1" (3.8 gpm).
9.3.3 Cycle time control
The pump operates at its maximum curve, and it
starts and stops based on time parameters. The
default time parameters are 5 minutes on and 15
minutes off. The time parameters are adjustable
through Grundfos Go.
9.3.4 Constant curve
The pump operates at a constant curve, which
means that it runs at constant speed or power.
The pump performance follows the selected
constant curve.
This control mode is recommended in systems
replacing old three-speed circulators where the
required performance is known.
9.3.5 Constant pressure
The pump operates at a constant pressure which
means the head is kept constant regardless of
changes in the system. The pump performance
follows the selected constant-pressure curve.
This control mode is recommended in systems
with multiple risers and thermally actuated
balancing valves.
9.3.6 Constant flow
The pump operates at a constant flow in the
system regardless of the head.
This control mode is recommended when the
pump is externally controlled, for example with an
aquastat.
16
10. Setting of the product
CAUTION
Radiation
Minor or moderate personal injury
‐
This equipment complies with FCC
and ISED radiation exposure limits
set forth for an uncontrolled
environment. This equipment must
be installed and operated with a
minimum distance of 20 cm (0.66
ft) between the radiator and your
body.
The operating panel can be used for the following:
•
Connect to Grundfos GO.
•
Lock and unlock the operating panel.
•
Select constant pressure (zone valve) or
constant curve (zone pump) control mode.
•
Select pump setting (I, II, III or AUTOADAPT)
for the two control modes available on the
operating panel.
•
Select to operate with Grundfos GO settings.
In Grundfos GO you can access all settings.
10.1 Connecting the product to Grundfos
GO
Before connecting the product to Grundfos GO,
the Grundfos GO app must be downloaded to
your smartphone or tablet. The app is free of
charge and available for iOS and Android devices.
The connection can be started either from the
operating panel or Grundfos GO. If you have
several products installed, we recommend starting
the connection from the operating panel.
1. Open Grundfos GO on your device. Make
sure that Bluetooth is enabled.
Your device must be within reach of the
product to establish Bluetooth connection.
2. Go to the Remote menu in Grundfos GO.
3. Press the connect icon on the operating panel.
The connect icon flashes until your device is
connected.
4. Press CONNECT in Grundfos GO.
Once the connection is established, the LED
is permanently on.
Grundfos GO is now loading the data for the
product.
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