Wilo Stratos MAXO Notice De Montage Et De Mise En Service page 64

en-US
NOTICE
The additional control function "Night setback" cannot be combined with the additional
control function "No-Flow Stop"!
9.2.2 No-Flow Stop
The additional control function "No-Flow Stop" continuously monitors the actual volume flow of the heat-
ing/cooling system.
If the volume flow decreases due to closing valves and falls below the "No-Flow Stop Limit" threshold set for
No-Flow Stop, the pump is stopped.
The pump checks every 5 minutes (300 s) whether the volume flow demand is increasing again. When the
volume flow increases again, the pump continues running in its set control mode in normal operation.
NOTICE
A volume flow increase relative to the set minimum volume flow "No-Flow Stop Limit" is
checked within a time interval of 10 s.
The reference volume flow Q
ing on the pump size.
Field of application of No-Flow Stop:
A pump in a consumer circuit with control valves in heating or cooling (with radiators, fan heaters, air-condi-
tioning devices, underfloor heating/cooling, ceiling heating/cooling, concrete core heating/cooling) as an ad-
ditional function for all control modes except Multi-Flow Adaptation and volume flow Q-const.
NOTICE
This function is deactivated in the factory settings and must be activated if required.
NOTICE
The additional control function "No-Flow Stop" is an energy-saving function. Reducing un-
necessary running times saves electrical pumping energy.
NOTICE
The additional "No-Flow Stop" control function is available for suitable applications only!
(see "Pre-defined applications in the setting assistant" [" 79] section.) The additional con-
trol function "No-Flow Stop" cannot be combined with the additional control function "Q-
Limit "!
Min
64
can be set between 1% and 20% of the maximum volume flow Q
ref
Installation and operating instructions • Wilo-Stratos MAXO/-D/-Z • Ed.02/2023-10
depend-
Max