Grundfos UP-ZV Notice D'installation Et De Fonctionnement page 7

Grundfos.bk Page 7 Wednesday, June 2, 2010 1:16 PM
Warning
Liquid may be under
pressure or
temperature
hazardous. Be sure
the pressure has
been reduced to zero
and the temperature
is at safe levels.
Failure to follow
these instructions
could result in
property damage and/
or personal injury.
• Valves can be installed
vertically or horizontally, but
never upside down. See fig. 1.
Fig. 1 Valve body installation
• The flow direction is indicated
by an arrow on the valve body.
The flow direction is from A to
B and the valve body must be
installed so that the internal
paddle closes against the
direction of flow as indicated in
in fig. 2 and fig. 3.
• Valves can be installed in the
supply or return piping; for
correct installation it is
necessary to respect the flow
direction indicated by the
arrow on the valve body.
Fig. 2 Valve body label; flow
direction
Internal
paddle
Port Port
A B
Fig. 3 Two-way valve,
normally closed
• Be sure to have the actuator
removed from the valve body
when soldering.
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