Installation; Terminal Box Positions; Changing The Terminal Box Position; Changing The Nameplate Position - Grundfos UPE 2000 Series Montage- Und Betriebsanleitung

3. Installation

When installing pumps, types UPE 50-xx and 65-xx,
with oval bolt holes in the pump flange, washers
must be used as shown in fig. 1.
Fig. 1
Washer
See mounting dimensions at the end of these in-
structions.
Care should be taken to ensure that per-
sons cannot accidentally come into con-
tact with hot surfaces of the pump.
The pump must be installed with the motor shaft hor-
izontal.
Arrows on the pump housing indicate the liquid flow
direction through the pump.

3.1 Terminal box positions

The terminal box can be turned to the positions
shown in figure 2.
Note: The terminal box must only be turned to the
positions below.
Fig. 2

3.2 Changing the terminal box position

Installation
Change the terminal box position as follows:
1. Remove the four screws holding the pump head.
2. Turn the pump head to the required position.
3. Replace the four screws and tighten securely.
Pump

3.3 Changing the nameplate position

When the terminal box position has been changed,
the pump nameplate must be turned so that the cut-
out points downwards. This allows water from a pos-
sible venting to escape.
To change the nameplate position, ease the outer
edge of the nameplate at the cutout with a screw-
driver, turn the nameplate to the new position and
push it into place.

3.4 Non-return valve

If a non-return valve is fitted in the pipe system, see
fig. 3, it must be ensured that the minimum discharge
pressure is always higher than the closing pressure
of the valve. This is especially important in propor-
tional-pressure control mode (reduced head at low
flows).
Fig. 3

3.5 Insulation

If the pump is insulated without using the GRUND-
FOS insulation kits, it must be ensured that the dif-
ferential pressure and temperature sensor in the
pump housing is not covered.

3.6 Frost protection

If the pump is not being used during periods of frost,
the necessary steps must be taken to prevent frost
bursts.
Before any dismantling of the pump, the
system must be drained or the isolating
valves on either side of the pump must be
closed as the pumped liquid may be scald-
ing hot and under high pressure.
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