Product description
en
Installation and operating instructions Wilo-SiFire FIRST
11
4.2
Mode of operation
The operating logic of the system is based on an automatic start and a manual stop of
the main pump. This ensures that the maximum amount of water is pumped in the
event of fire. The main and jockey pumps are controlled by separate pressure switches.
After switching on the system and activating the automatic mode, the jockey pump is
started first. The jockey pump fills the system with water and keeps the system pres-
sure constant. To do this, the jockey pump switches on and off automatically.
NOTICE! Systems without jockey pumps must be filled with water manually!
When the water circuits in the sprinkler system are opened, the pressure in the system
rapidly decreases. The main pump is activated and the water is pumped into the sprink-
ler system. Once the water circuits in the sprinkler system are closed again, the system
restores the holding pressure.
NOTICE! The purpose of a sprinkler system is firefighting. Therefore, the main pump
is not automatically switched off! To switch off the main pump, press the “Stop”
button on the switchgear.
4.3
Frequency converter operation
Do not connect and operate the system on a frequency converter. The pump and
switchgear are not designed to operate on a frequency converter.
4.4
Technical data
Ambient conditions
Operating pressure:
ƒ
Without jockey pump: max. 16 bar
ƒ
With jockey pump: max. 12 bar
Jockey pump drop in pressure:
0.7 bar at 100 l/min
Ambient temperature, minimum:
ƒ
With electric motor: 4 °C
ƒ
With diesel motor: 10 °C
Ambient temperature, maximum:
ƒ
Without jockey pump: 40 °C
ƒ
With jockey pump: 35 °C
Relative humidity:
max. 50 % at 40 °C
Installation altitude above sea-level:
ƒ
With electric motor: max. 1000 m
ƒ
With diesel motor: max. 300 m
Atmospheric pressure:
min. 760 mmHg (*)
Water temperature:
max. 25 °C
Electrical data
Mains connection:
ƒ
Electric motor: 3~400 V, 50 Hz
ƒ
Diesel motor: 1~230 V, 50 Hz
ƒ
Jockey pump: 1~230 V, 50 Hz
Voltage tolerance:
±10 %
Energy efficiency class, electric motor
main pump:
IE3
Protection class, electric motor main
pump:
IP55
Protection class, electric motor jockey
pump:
IP55
Protection class, switchgear main pump:
IP54
Protection class, switchgear jockey pump: IP65
ƒ
For additional technical information, see the rating plate on the motor and the
switchgear!
ƒ
* Deviations to standard test conditions: Note details on class deviations for electric
and diesel motors regarding temperature, elevation, atmospheric pressure and fuel
viscosity. See specific tables and diagrams in catalogues and maintenance manuals.
4.5
Type key
SiFire FIRST-40/200-180-7,5/0,55EJ
SiFire FIRST
Unit for fire-extinguishing/sprinkler systems according to EN 12845
40/200
Pump type
180
Impeller diameter of main pump
