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English (US)
5. Installation procedures
5.1 Piping considerations
When making piping connections, be sure to
follow the piping manufacturer's
recommendations and all code requirements for
piping material.
Thoroughly clean and flush all dirt and sediment
from the system before attempting to install the
pump.
5.1.1 Location in the piping line
The pump should never be located at the lowest
point of the piping system (where dirt and
sediment collect), nor should it be located at the
highest point of the piping system (where air
accumulates).
When installing the pump into the piping system,
Grundfos recommends that pressure gauges be
installed in the inlet and discharge flanges or
pipes. This will allow the pump and system
performance to be checked.
Do not block the pipe plugs in the pump housing
flanges by locating the terminal box over these
plugs.
5.1.2 Mounting positions
The arrows on the pump housing indicate the
direction of water flow. The pump may be
installed in vertical or horizontal piping, but the
motor shaft must always remain horizontal,
as shown in fig.
.
Fig. 1
Installation positions
5.1.3 Terminal box positions
At the bottom of the stator, closest to the pump
housing, there are three drain holes to allow
condensed water to escape. The drain holes
shall not be blocked for any reason and one
drain hole must always point downward.
There is not a drain hole directly below the
terminal box; therefore the terminal box must be
positioned in one of the positions shown in fig.
Warning
Never make any connections in the
pump terminal box unless the
electrical supply has been
switched off.
The pump should not be connected
to the electrical system until it has
been properly installed in the
piping system.
Warning
Risk of electrical shock - this pump
has not been investigated for use
in swimming pool or marine areas.
Warning
The pump must be positioned so
that someone cannot accidentally
come into contact with the hot
surfaces of the pump.
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Summary of Contents for UPS 26-150
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