Installation Procedures; Electrical Preparation; Piping Considerations; Mounting Positions - Grundfos UPS 200 Serie Instrucciones De Instalación Y Funcionamiento

4. Installation procedures

WARNING
Never make any connections in the
pump terminal box unless the
electrical supply has been switched
off.

4.1 Electrical preparation

Terminal box position
At the bottom of the stator, closest to the pump
housing, there are eight drain holes to allow
condensed water to escape. The drain holes
shall not be blocked. The drain holes must point
downwards. The terminal box must therefore
point upwards in one of the positions shown in
fig. 1. The following terminal box positions apply
whether the piping is mounted vertically or
horizontally.
Fig. 1 Possible terminal box positions
Rotating the terminal box
To change the position of the terminal box,
follow these steps:
WARNING
If the pump is already installed in the
system, the system must be drained
or the isolation valves on both sides
of the pump must be closed before
the allen-head screws are removed as the pumped liquid may be scalding
hot and/or under pressure.
Do not start the pump until the system
has been filled with liquid and vented.
1. Remove the four allen-head screws holding
the pump head onto the pump housing.
2. Carefully lift the pump head and rotate it so
the terminal box is in the desired position.
DO NOT locate the terminal box beneath the
pump. Make sure the O-ring is properly
seated in the pump housing.
3. Replace the pump head onto the pump
housing.
4. Tighten the allen-head screws evenly.
Torque:
8 mm: 15 ft lbs
10 mm: 25 ft lbs.
5. Check to make sure the rotor turns freely.
Do this by removing the vent plug in the
middle of the pump nameplate. Insert a
medium size flat-blade screwdriver into the
slot at the exposed end of the shaft. Gently
turn the shaft. If it does not turn easily,
repeat steps 1 to 4 above.
6. The position of the nameplate can be
changed by easing the outer edge of the
plate at the cutout with a screwdriver.
Turn the nameplate to the required position
and push into place.
7. Refer to page 19 and page
instructions.

4.2 Piping considerations

Thoroughly clean and flush all dirt and sediment
from the system before attempting to install the
pump.
Location in the piping line
The pump should never be located at the lowest
point of the piping system, where dirt and
sediment collect. Nor should it be located at the
highest point of the piping system, where air
accumulates.

Mounting positions

The arrows on the flanges of the pump indicate
the direction of water flow. Although the UPS
may be installed in either vertical or horizontal
piping, the motor shaft must always remain
horizontal, as shown in fig.
Fig. 2 Direction of water flow through the
pump
Pumps installed outdoors must be
Note
protected by a ventilated, watertight
cover to keep out moisture and dirt.
WARNING
The pump must be positioned so that
someone cannot accidentally come
into contact with the hot surfaces of
the pump.
20 for additional
1 and fig. 2.
7