If several pumps are installed in the same
pit, the pumps must be installed at the
same level to allow optimum pump
alternation.
Pumps for submerged ring stand installation can
stand freely on the bottom of the pit or similar
location.
If a hose is used, make sure it does not buckle and
that the inside diameter of the hose matches the
outlet.
If a rigid pipe is used, fit the parts in the following
order:
1.
union or coupling
2.
non-return valve
3.
isolating valve.
If the pump is installed in muddy conditions or on
uneven ground, place it on a solid support.
1.
Fit a 90° elbow to the pump outlet and connect
the outlet pipe or hose.
2.
Lower the pump into the liquid by a chain
secured to the lifting bracket. Place the pump on
a plain, solid foundation.
3.
Hang up the end of the chain on a suitable hook
at the top of the pit, so the chain cannot come
into contact with the pump housing.
4.
Adjust the length of the power cable by coiling it
up on a relief fitting to ensure that the cable is not
damaged during operation. Fasten the relief
fitting to a suitable hook at the top of the pit.
Make sure that the cables are not sharply bent or
pinched.
5.
Connect the power cable and the control cable, if
any.
Installation on ring stand
5. Electrical connection
AP80 pumps cannot be operated with
frequency converter.
DANGER
Electric shock
Death or serious personal injury
‐
Connect the pump to an external main
switch, which ensures all-pole
disconnection with a contact
separation according to EN 60204-1.
‐
It must be possible to lock the main
switch in position 0. Type and
requirements as specified in EN
60204-1.
The permanent installation must be fitted
with an earth-leakage circuit breaker.
Make sure there are at least 3 m free
cable above the maximum liquid level.
10
English (GB)
