Wilo SiFresh Einbau- Und Betriebsanleitung Seite 86

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86
DANGER
The pump can start despite the "OFF" function
The "OFF" function is not a safety function and is no replacement for
disconnecting the power supply for maintenance work. Functions such as
pump kick can start up the pump despite the "OFF" function being set.
• Always disconnect the pump from the power supply before carrying
out any work!
Manual operation functions can be selected in the
tion"
"Manual operation (OFF, MIN, MAX, MANUAL)":
Function Description
Control mode Pump works according to the set controls.
OFF Pump is switched off. Pump is not running.
All other set controls will be overridden.
MIN The pump is set to minimum power.
All other set controls are overridden.
MAX The pump is set to maximum power.
All other set controls are overridden.
MANUAL Pump is working according to set control, which is meant for
the "MANUAL" function.
Table 13: Functions of manual operation
The manual operation functions OFF, MAX, MIN, MANUAL correspond to the functions Ext.
OFF, Ext. MAX, Ext. MIN and Ext. MANUAL in their effect.
Ext. OFF, Ext. MAX, Ext. MIN and Ext. MANUAL can be triggered via the digital inputs or via a
bus system.
Priorities
Priority* Function
1 OFF, External OFF (binary input), External OFF (bus system)
2 MAX, External MAX (binary input), External MAX (bus system)
3 MIN, External MIN (binary input), External MIN (bus system)
4 MANUAL, External MANUAL (binary input)
Table 14: Priorities
* Priority 1 = highest priority
NOTICE
The "MANUAL" function replaces all functions including those which are
controlled via a bus system.
If a monitored bus communication fails, the control mode set via the
"MANUAL" function is activated (Bus Command Timer).
Adjustable control modes for the MANUAL function:
Control mode
MANUAL – Differential pressure Δp-v
MANUAL – Differential pressure Δp-c
MANUAL – Volume flow Q-const
MANUAL – Speed n-const
Table 15: Control modes MANUAL function
Installation and operating instructions • Wilo-SiFresh • Ed.02/2023-08
"Settings" menu → "Manual opera-