Wilo Stratos GIGA2.0-I Notice De Montage Et De Mise En Service page 188

en
11.2.2 Q-Limit Max
11.2.3 Q-Limit Min
11.2.4 Nominal duty point Q
188
Setting the control functions
ing 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
volume flow Q depending on the pump size.
Max
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-conditioning devices, underfloor heating/cooling, ceiling heating/cool-
ing, concrete core heating/cooling) as an additional function for all control modes ex-
cept 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. Redu-
cing unnecessary 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" [} 198] section)! The
additional control function "No-Flow Stop" cannot be combined with the additional
control function "Q-Limit
Min
The additional control function "Q-Limit
tions (differential pressure control (∆p-v, ∆p-c), cumulated volume flow, temperature
control (∆T control, T control)). It makes it possible to limit the maximum volume flow
to approx. 25 % – 90 %, depending on pump type. When the set value is reached, the
pump is controlled on the characteristic curve along the limit – never beyond.
NOTICE
When using Q-Limit in non-hydraulically balanced systems, some areas can be in-
Max
adequately supplied and freeze!
ƒ
Carry out hydronic balancing!
The additional control function "Q-Limit
tions (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
value is reached, the pump is controlled on the characteristic curve along the limit until
the maximum delivery head is reached.
NOTICE
The additional "Q-Limit " control function cannot be combined with the additional
Min
"No-Flow Stop" control function!
The optionally configurable nominal duty point for the differential pressure control
∆p‑v significantly simplifies adjustment by adding the required volume flow at the
can be set between 10 % and 25 % of the maximum
ref
"!
" can be combined with other control func-
Max
" can be combined with other control func-
Min
within the hydraulic characteristic curve. When the set
WILO SE 2021-12