Hydromatic DRY PIT, Инструкция по установке и обслуживанию, Страница: 4 / 12

4
Discharge-Outlet Piping:
The discharge piping for short
runs can be of the same size as
the discharge of the pump. It is
recommended that longer runs be
1 to 2 sizes larger depending on
the length. Any elevated points
will retain air pockets, and it is
recommended that air vents or
bleed lines be installed at these
points to evacuate entrapped air.
Installation of a valve near the
discharge of the pump is
recommended to isolate the pump
during
maintenance and
shutdown.
It is recommended that a pressure
gauge be installed near the
discharge of the pump to
assist in troubleshooting potential
performance problems.
NEMA 4 Junction Box
(Optional):
A NEMA 4 junction box should
be used to make power and
control connections if electrical
control panel is to be set remote
from the pump station. The
Hydromatic NEMA 4 junction
box is provided with compression
connections for sealing all wires.
No sealing compound is needed
to make connections waterproof.
Wiring diagrams are provided
with the panel for making
connections. An extra set of
diagrams is included so that one
set can be used in the station
when making connections. The
size wire to use from panel to
station depends on motor size and
distance in feet.
The wire size table on Page 4 can
be used as a guideline for wire
size. Be sure each wire is checked