Piping Considerations; Connect The Pump - Grundfos UP Series 200 Installation And Operating Instructions Manual

Rotating the terminal box
To rotate 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 hex socket 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 hex socket 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 hex socket head screws evenly.
Torque to:
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 pages 11 and 12 for additional
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
UP Series 200 may be installed in either vertical
or horizontal piping, the motor shaft must always
remain horizontal, as shown in figures 1 and 2.
Fig. 2 Direction of water flow through the
pump
Pumps installed outdoors must be
protected by a ventilated,
Note
watertight cover to keep out
moisture and dirt.
Warning
The pump must be positioned so
that no one can accidentally come
into contact with the hot surfaces
of the pump.

4.3 Connect the pump

Install the pump into the piping system.
Grundfos recommends that pressure gauges be
installed in the inlet and discharge flanges or
pipes to check pump and system performance.
7