5
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
See mounting dimensions at the end of these in-
structions.
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
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.
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.
Care should be taken to ensure that per-
sons cannot accidentally come into con-
tact with hot surfaces of the pump.
Installation
Pump
Washer
TM
0
1
0
683
1
997
TM
02
13
88
11
01
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.
TM
02
06
40
03
01
