Wilo -Stratos MAXO-D Einbau- Und Betriebsanleitung Seite 152

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• Index circuit ∆p-c
• Dynamic Adapt plus (factory setting of single and twin-head pump)
• Volume flow constant (Q-const.)
• Multi-Flow Adaptation
• Temperature constant (T-const.) (factory setting for drinking water pump)
• Differential temperature (∆T-const.)
• Speed constant (n-const.)
• PID control
9.2 Additional control functions
NOTICE
Additional control functions are not available for all applications!
These additional control functions are available depending on the application:
• Night setback
• No-Flow Stop
• Q-Limit
Max
• Q-Limit
Min
• Nominal duty point Q
• Gradient of the Δp-v characteristic curve
• Multi-Flow Adaptation mixer (from SW ≥ 01.05.10.00)
10 Double pump operation
10.1 Function
All Stratos MAXO pumps are equipped with an integrated dual pump management.
In the "Twin-head pump operation" menu, a twin-head pump connection can be established or disconnec-
ted. The twin-head pump function can also be set here.
• Pump cycling:
The actively operated pump is regularly changed automatically to guarantee even usage of both pumps in
the event of single pump operation. If only one pump (main/standby, peak load or night setback) is run-
ning, the pump being operated is changed after a running time of 24 h at the latest. Both pumps run at the
time of pump changeover so that operation is not interrupted. The operated pump can be replaced at least
every 1 hour and can be set in length increments up to a maximum of 36 hours.
NOTICE
The remaining time until the next pump cycling is recorded via a timer.
The timer stops if there is a mains interruption. After switching the mains voltage on again,
the remaining time until the next pump cycling continues to run.
The count does not start again from scratch!
• Communication between pumps:
Communication for a twin-head pump has been set at the factory.
First, the bus Wilo Net must be installed with a cable between both electronic modules when connecting
two single pumps of the same type to a twin-head pump (in the Y-piece joint).
152 Installation and operating instructions • Wilo-Stratos MAXO/-D/-Z • Ed.01/2023-02