Publicité
Les langues disponibles
Les langues disponibles
ENGLISH
6. STARTING UP
6.1 Preliminary rinsing
Each of our pumps is tested regarding hydraulic features in factory,
some water may remain in them.
It is recommended for hygiene purposes, to carry out a rinsing of the
pump before any using with potable water supply.
6.2 Filling - venting
CAUTION ! Never operate the pump dry, even briefly.
- Close the discharge valve (2),
- Open the venting plug (4), the suction valve (1) and completely fill
the pump.
Close the venting plug only after water flows out and complete aera-
tion.
WARNING ! Beware of scalding ! In hot water, a stream of
water may escape from the venting plug port. Take all requi-
red precautions as regards persons and motor converter.
WARNING ! Avoid touching the pump owing to the risk of bur-
ning! Depending on the operating condition of the pump
and/or installation (fluid temperature, volume flow) the entire pump
including the motor can become very hot.
CAUTION ! Operating in pressure regulation mode : MODE 2 to
ensure the detection of zero flow, set the non-return valve
before the pressure sensor (Fig. 2).
6.3 Starting up
WARNING ! Depending on conveyed fluid and operating
cycles of the pump, surface temperature (pump, motor) can
exceed 68°C. Take necessary means to avoid injuries.
CAUTION ! The pump must not run at zero flow (closed dischar-
ge valve).
To ensure an adequate cooling of the motorconverter, the pump
must not run with a flow lower than 0,3 m3/h and a flow bigger to
maximum speed than :
- 5,5 m3/h for Multi-VSE-2xx
- 8 m3/h for Multi-VSE-4xx
- 14 m3/h for Multi-VSE-8xx
H(m)
n=100%
0
0
0,3
- If the pump is operating at high back-pressure, unscrew the venting
device a few turns to complete venting until water flows out.
- Open the discharge valve to start the pump.
- Check pressure stability at discharge with a manometer, if instabili-
ty, perfect air draining.
- Adjust the discharge valve in order to have the wished working
point.
- Check that the current input does not exceed the value indicated
on the pump data plate.
- Perfect air draining : open the venting plug and close it only after
water flows out and complete aeration.
Q
MAXI
Q (m3/h)
28
Publicité
