Configuration Storage/Data Storage; Double Pump Operation; Dual Pump Management - Wilo Yonos GIGA2.0-I Installation And Operating Instructions Manual

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Pump ON/OFF
Switched off
Switched on
Fig. 49: Switching the pump on or off
10.6 Configuration storage/data stor-
age
11

Double pump operation

11.1

Dual pump management

56
Double pump operation
It is possible to switch off the pump via the manual function "Pump On/Off". The motor
is stopped and the control mode with the set control function is interrupted.
In order for the pump to continue running in the set control mode, it must be actively
switched on again via "Pump On".
DANGER
Risk of fatal electrical shock!
The "Pump OFF" connection only overrides the set control function and only stops
the motor. This means that the pumps are not voltage-free.
• Always disconnect the pump from the power supply for maintenance work!
The electronic module is equipped with a non-fading memory for saving the configura-
tion. If the mains supply is interrupted for any length of time, all settings and data are
retained.
When power is restored, the pump continues to run with the default values that were
present before the interruption.
All Yonos GIGA2.0 pumps are equipped with integrated dual pump management.
A twin-head pump connection can be established or disconnected in the "Dual pump
management" menu. The twin-head pump function can also be set here.
The dual pump management has the following functions:
ƒ
Main/standby operation:
Each of the two pumps provides the configured flow rate. The other pump is avail-
able in case of malfunction or runs after pump cycling.
Only one pump runs at a time (factory setting).
The main/standby operation is also completely active even for two similar single
pumps in a twin-head pump installation in the Y-piece.
ƒ
Efficiency-optimised peak-load operation (parallel operation):
In peak-load operation (parallel operation), the hydraulic output is provided jointly
by both pumps.
In the partial load range, the hydraulic output is initially provided by just one of the
two pumps.
If the sum of the electrical power consumption P1 of both pumps in the partial load
range is less than the power consumption P1 of one pump, then the second pump
is switched on with optimised efficiency.
This operating mode optimises operational efficiency compared to conventional
peak-load operation (exclusively load-sensitive switching on and off).
If only one pump is available, the remaining pump takes over the supply. The pos-
sible peak load is limited due to the power of the single pump. Parallel operation is
also possible with two single pumps of the same type in twin-head pump opera-
tion in the Y-piece.
ƒ
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 running, 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 maxi-
mum of 36 hours.
WILO SE 2022-05