English
18
Wilo SE 11/2017
6.2.4 FLA switchgear display elements
Collective fault signal
The “collective fault signal” signal lamp lights up
red when a fault occurs. Possible faults include low
water, wire break or short-circuit in the connec-
tion to the pressure switch, malfunction in the
supply network, or excess current.
Operational standby
The “operational standby” signal lamp lights up
green when the system has a power supply and is
switched on via the main switch and there are no
faults in the mains power supply. The system is
ready for operation.
Operation of pump
The “pump operation” signal lamp lights up green
when the pump is switched on.
Pump request
The “pump request” signal lamp lights up white if
the pressure in the system falls below the set/
requested pressure and the pressure switch trig-
gers.
7 Installation and electrical connection
DANGER! Risk of fatal injury!
Incorrect installation and improper electrical
connections can be life-threatening.
• The installation and electrical connection may
only be carried out by qualified personnel in
accordance with the applicable regulations!
• Adhere to regulations for accident prevention!
7.1 Installation
NOTE:
Observe special requirements for country-specific
building codes, the conditions of permits and fire
safety reports.
• WM (wall mounted): For pressure boosting sys-
tems, the switchgear is mounted on the compact
system. If the wall device should be mounted
separately from the compact system, this is done
using 4 screws?, Ø 8 mm. While doing so, the pro-
tection type is to be ensured using suitable mea-
sures.
• Floor model, BM (base mounted): The floor model
is set up free-standing on a level surface (with
sufficient bearing capacity). In the standard, there
is a mounting pedestal 100 mm high for the cable
inlet. Other pedestals are available on request.
1-pump system
2-pump system
Signal lamp
Description
Signal lamp
Description
red
Collective fault
red
Collective fault
System 1
red
Collective fault
System 2
green
Operational standby
green
Operational standby for system 1
green
Operational standby for system 2
green
Operation of pump
green
Operation of pump 1
green
Operation of pump 2
white
Pump request
white
Pump request from pump 1 pres-
sure switch
white
Pump request from pump 2 pres-
sure switch
