7. Startup
Do not start the pump until it has been
filled with liquid and vented.
7.1 Flushing the pipe system
CAUTION
Biological hazard
Minor or moderate personal injury
‐
When pumping drinking water, the
pump must be flushed thoroughly with
clean water before startup in order to
remove any foreign matters, such as
preservatives, test liquid, or grease.
•
Before starting up the pump, thoroughly clean,
flush and fill the pipe system with clean water.
The warranty does not cover any
damage caused by flushing the pipe
system by means of the pump.
The pump is not designed to pump
liquids containing solid particles such
as pipe debris and welding slag.
7.2 Priming the product
7.2.1 Priming the product in closed systems or
open systems where the liquid level is above
the pump inlet
1. Close the isolating valve in the outlet pipe and
slowly open the isolating valve in the inlet pipe.
Both the pump and the inlet pipe must be
completely filled with liquid.
WARNING
Escaping liquid
Death or serious personal injury
‐
Pay attention to the orientation of
the priming hole to ensure that the
escaping liquid does not cause
personal injury or damage to the
motor or other components.
‐
In hot-liquid installations, pay
special attention to the risk of
personal injury caused by scalding
hot liquid.
‐
In cold-liquid installations, pay
special attention to the risk of
personal injury caused by cold
liquid.
2. Loosen the priming plug in order to vent the
pump. Once liquid runs out, tighten the priming
plug.
7.2.2 Priming the product in inlet operation with
non-return valve
The inlet pipe and the pump must be filled with liquid
and vented before the pump is started.
1. Close the isolating valve in the outlet pipe and
slowly open the isolating valve in the inlet pipe.
2. Remove the priming plug indicated by M.
3. Pour liquid through the hole until the inlet pipe and
the pump are completely filled with liquid.
4. Fit the priming plug indicated by M.
5. The inlet pipe may be filled and vented via the
priming plug. Alternatively, a priming device with
funnel can be installed before the pump.
M
E
TM033935
Drain plug (E), priming and venting plug (M)
31
English (GB)
Summary of Contents for NB 80-200/222VAXEF1BESBQQEWX2
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