Pipe Connection; Minimum Space - Grundfos Unilift AP35B Installation And Operating Instructions Manual

DANGER
Electric shock
Death or serious personal injury
- Route the power cable in a way
that supports it and protects it from
being cut, pinched or damaged.
- If the power cable is cut, pinched,
or damaged, replace it before
using the product.
DANGER
Electric shock
Death or serious personal injury
- Do not remove the power cable
and strain relief.
- Do not connect electrical conduit to
the pump.
WARNING
Moving parts
Minor or moderate personal injury
- Make sure that persons cannot
come into contact with moving
parts.
If the pump is used without a float
switch, use an approved level
controller with a motor protection unit
and set the current rating to match the
nominal current marked on the
product's nameplate.
Do not lift the pump by the power
cable or by the outlet pipe or hose.
If the pump is installed in a well or
tank, lower and lift it by means of a
wire or chain fastened to the pump
handle.

4.1 Pipe connection

Threaded steel or rigid plastic pipes can be screwed
directly into the 2" NPT outlet port. For permanent
installation, we recommend that you fit a union, a
non-return valve and an isolating valve in the outlet
pipe.
Other recommendations:
• For portable or temporary installations, a plastic
outlet pipe can be used in conjunction with a
suitable, screwed connection or a hose coupling.
• Threads must be sealed using Teflon
Do not install the pump hanging from
the outlet pipe or hose.

4.2 Minimum space

When the pump is installed in a permanent
installation with a float switch, and the cable length is
set to the minimum length of at least 4 inches (100
mm), the minimum dimensions of the sump pit, basin
or tank must be as shown in fig. 2.
In addition, the sump pit, basin or tank must be sized
according to the relation between the water flow to
the sump pit, basin or tank and the pump
performance.
21.5 in. (550 mm)
22"
Fig. 2 Minimum installation dimensions
®
tape.
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