User Guide

English

Installation and operating instructions Wilo-Stratos GIGA 21

7.1 Permitted installation positions and

change of the arrangement of

components before the installation

The component arrangement concerning the pump housing is prein-

stalled as a factory setting (see Fig. 21) and can be changed if need be

at the operating location. This can be necessary, for example, to:

• Ensure the bleeding of the pumps

• Make operation easier

• Prevent impermissible installation positions (i.e. motor and/or elec-

tronic module downwards)

In most cases, it is enough to rotate the motor impeller unit relative to

the pump housing. The possible arrangement of components is the

result of the permitted installation positions.

Permitted installation positions with

horizontal motor shaft

The permitted installation positions with horizontal motor shaft are

shown in Fig. 22. Any installation position is allowed except for “elec-

tronic module facing down”. The venting of the pump is only ensured

when the bleed valve is pointing upwards (Fig. 22, Item 1).

Only in this position can condensate be directed away and into a pro-

vided drilled hole (Fig. 22, Item 2).

Permitted installation positions with

vertical motor shaft

The permitted installation positions with vertical motor shaft are

shown in Fig. 23. Any installation position is allowed except for

“motor facing down”.

The motor impeller unit can – relative to the pump housing –

be arranged in four different positions (each shifted by 90°).

Fig. 21: Arrangement of the components

upon delivery

Fig. 22: Permitted installation positions

with horizontal motor shaft

Fig. 23: Permitted installation positions

with vertical motor shaft

4 x 90°