GESTRA UNA 38, Original Installation Instructions, Page: 15 / 48

15
Attention!
Equipment will be damaged if the end
connections are undersized.
 Make sure that the connections are
strong and rigid enough to support the
weight of the equipment and to
withstand the forces that occur during
operation.
Consider space required for servicing the
equipment and/or exchanging components and
observe the necessary withdrawal distance to
remove the cover. For more information on the
required withdrawal distances see section
"
Dimensions and weights " on page 36.
Some applications require that the
equipment is fitted with an air-balance
pipe:
Equipment with control unit SIMPLEX MAX,
float traps for compressed air line drainage
and equipment installed in plants where
condensate is lifted upstream of the
equipment.

In this case connect the air balance pipe
to the bore on top of the cover.
 Make sure that the pipe system of the plant is
clean.
 Make sure that the equipment is free from
foreign matter.

Mount the equipment in the desired installation
position.

Make sure that pipes satisfy the following
conditions:

Pipes must be routed such as to avoid water
pockets.

Pipes must always be on a downward incline.

Balancing pipes must have a minimum cross
section of DN 8 (¼ ").

For units with SIMPLEX control unit, a balancing
pipe must be connected to the hole for the
manual vent valve.

If you are unable to satisfy one or more of these
requirements, please contact the manufacturer.

Connect the end connections of the equipment
properly to the pipes.

If necessary, connect the air balance pipe to the
equipment as shown in the following drawing.
 Make sure that the equipment is safely mounted
and that all connections are made correctly.