Operating Modes - Grundfos AP80-100 Montage- Und Betriebsanleitung

WARNING
Crushing of hands
Death or serious personal injury
‐
When lifting the pump, make sure your
hand cannot get caught between the
lifting bracket and the hook.
DANGER
Crushing hazard
Death or serious personal injury
‐
Make sure that the hook is fixed
properly to the lifting bracket.
‐
Always lift the pump by its lifting
bracket or by a forklift truck, if the
pump is fixed on a pallet.
‐
Never lift the pump by the power cable,
hose or pipe.
‐
Make sure that the lifting bracket is
tightened before lifting the pump.
DANGER
Electric shock
Death or serious personal injury
‐
Before starting up the product for the
first time, check the power cable for
visible defects to avoid short circuits.
‐
If the power cable is damaged, it must
be replaced by the manufacturer, his
service agent or a similarly qualified
person.
‐
Make sure that the product is earthed
properly.
‐
Switch off the power supply and lock
the main switch in position 0.
‐
Switch off any external voltage
connected to the product before
working on it.
CAUTION
Biological hazard
Minor or moderate personal injury
‐
Flush the pump thoroughly with clean
water and rinse the pump parts after
dismantling.
‐
Wear appropriate personal protective
equipment and clothing.
CAUTION
Hot surface
Minor or moderate personal injury
‐
Do not touch the surface of the pump
while it is running.

6.1 Operating modes

Never use these pumps for siphoning
operation. The pumps must always be
completely submerged in the pumped
liquid.
The pumps are designed for continuous (S1)
operation. In this operating mode, the pump can
operate continuously without being stopped for
cooling. Being completely submerged, the pump is
sufficiently cooled by the surrounding liquid. During
S1 operation, the maximum number of starts per
hour is 15.
The pumps must be completely
submerged for continuous operation.
P
1
2
S1 operation
Position Description
1 Operation
2 Stop
The minimum liquid level is at the top of the pump
housing.
For AP40 and AP50 pumps,
intermittent (S3) operation between 40°C and 60°C
liquid temperature is permitted up to 30%. S3
operation is a series of 10-minute duty cycles. Each
cycle has a 3-minute period of constant load followed
by a 7-minute period of rest. Thermal equilibrium is
not reached during the cycle.
t
13