Settings Assistant - Wilo -Stratos GIGA2.0-I Einbau- Und Betriebsanleitung

11.2.3 Q-Limit Min
11.2.4 Nominal duty point Q
11.2.5 Gradient ∆p-v characteristic curve
11.2.6 Multi-Flow Adaptation mixer
11.3

Settings assistant

Settings
Set auto control
Settings assistant, setpoints, options
Manual operation
Manual override
Double pump operation
Set double pump
External interfaces
Analogue, digital, SSM, SBM ...
Fig. 38: Settings menu
Installation and operating instructions • Wilo-Stratos GIGA2.0-I, Wilo-Stratos GIGA2.0-D • Ed.02/2022-07
• Carry out hydronic balancing!
The additional control function "Q-Limit
(differential pressure control (∆p-v, ∆p-c), cumulated volume flow, temperature control
(∆T control, T control)). This makes it possible to ensure a minimum volume flow of 15 % –
90 % of Q
Max
pump is controlled on the characteristic curve along the limit until the maximum delivery
head is reached.
The optionally configurable nominal duty point for the differential pressure control ∆p‑v
significantly simplifies adjustment by adding the required volume flow at the design point.
The additional input of the required volume flow at the design point ensures that the ∆p-v
characteristic curve runs through the design point.
The slope of the ∆p-v characteristic curve is optimised.
The additional function "Gradient ∆p-v characteristic curve" can be used for the differential
pressure control Δp‑v. A factor can be set on the pump to optimise the Δp-v control char-
acteristic. The factor 50 % (½ H
cial pipe network characteristics, there may be inadequate or excessive supply. The factor
reduces (< 50 %) or increases (> 50 %) the Δp-v delivery head at Q=0 m³/h.
• Factor < 50 %: ∆p‑v characteristic curve becomes steeper.
• Factor > 50 %: ∆p‑v characteristic curve becomes flatter. Factor 100 % is equal to an
Δp-c control.
The excessive or inadequate supply can be compensated by adjusting the factor.
• In case of inadequate supply in the partial load range, the value must be increased.
• In case of excessive supply in the partial load range, the value can be reduced. More en-
ergy can be saved and flow noises are reduced.
In the case of secondary circuits with in-built 3-way mixers, the mixed volume flow can be
calculated so that the primary pump takes the actual demand of the secondary pumps into
account. To do this, the following has to be carried out:
temperature sensors must be mounted on the secondary pumps in the respective feed and
return of the secondary circuits and the heating or cooling quantity measurement must be
activated.
Temperature sensors are mounted on the feeder pump at the primary feed upstream of the
heat exchanger or hydraulic shunt and at the secondary feed behind it. The function Multi-
Flow Adaptation mixer is activated on the feeder pump.
Thanks to the setting assistant, it is not necessary to be familiar with the matching control
mode and additional option of the respective application.
Menu for adjusting
control functions.
You can select the matching control mode and additional option in the application's setting
assistant.
You can also directly select a basic control mode in the setting assistant.
" can be combined with other control functions
Min
within the hydraulic characteristic curve. When the set value is reached, the
NOTICE
The additional "Q-Limit " control function cannot be combined with
Min
the additional "No-Flow Stop" control function!
) is pre-set at the factory. In some installations with spe-
set
en
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