Wilo FLA Série Notice De Montage Et De Mise En Service page 35

Fig. 6a FLA-1 hydraulic diagram
Fig. 6b FLA-2 hydraulic diagram
1 Pump
2 Control device
4 Inlet connection/inlet collecting pipe
5 Pressure connection/pressure collecting pipe
6 Check valve
7 Non-return valve
8 Diaphragm pressure vessel
9 Pressure gauge
11 Needle-type throttle
12 Pressure switch
12A Pressure switch 1
12B Pressure switch 2
12C Pressure switch 3
14 Bypass connection (on the pressure side)
15 Anschluss Bypass (druckseitig)
17 Flexible connection (e.g. WILO compensator,
WILO flexi hose)
18 Spur line for calibration
28 WILO break tank
29 Low-water signal transmitter
30 WILO float valve
31 WILO automatic flushing apparatus
32 External command device (e.g. limit switch)
33 Signal(s) to BMS
34 Outlet valve in bypass passage
35 Outside water supply for fire brigade
Fig. 7a Example of FLA-1 electrical connection
Fig. 7b Example of FLA-2 electrical connection
* Site circuit protection according to DIN 14462
a Pump 1
b Pump 2
c Control of pump 1
d Control of pump 2
Switch cabinet as per DIN14462 with one
e
power supply
f Switch cabinet as per DIN14462 with two
power supplies
Onsite power supply (including network
g
switching, if necessary)
Fig. 8a FLA-1 installation example
Fig. 8b FLA-2 installation example
A Expansion joint with extension limiters
(accessory)
B Flexible connection line (accessory)
C Floor fixation with structure-borne noise
insulation (by the customer)
D Fixation of pipes, e.g. with pipe clips (by the
customer)
E Screw the vibration dampers (included in
scope of delivery) into the threaded inserts
provided and secure them with counter nuts
BW Bend angle for flexible connection line
RB Bend radius for flexible connection line
Installation and operating instructions Wilo-FLA
Fig. 9 Low-water signal transmitter (float switch)
break tank
A Tank full, contact closed
B Tank empty, contact open
BN Brown
BU Blue
BK Black
Contacts in the control device for low-water
TLS
signal transmitter
English
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