Armstrong Design Envelope 4300, Инструкция по установке и эксплуатации

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installation &
operating instructions
Design Envelope 4300 & 4380
Vertical In-line Pumping Unit
8
1.2.2.10
The motor and integrated control assembly has 2 factory
orientations available, each perpendicular to the flow to meet
installation spacing requirements.
Where applicable, remove the coupling guard to access the
motor bolts. Remove the motor bolts to rotate the motor and
integrated control assembly by hand. Care should be taken
that the controls are not damaged during lifting and that the
flushline, flushline accessories and the coupling guard removal/
seal service window are not compromised following the turn
(
fig. 1.2.2.10 ).
If not convenient for other equipment, motor and controls may
be rotated at installation site at any
360˚ orientation provided
there are no physical clashes with other equipment. Remove
the clamp ring between the casing and adaptor/pedestal and
careful rotate the rotating assembly. Note that the seal flush
line may need to be replaced to fit the new orientation.
fig. 1.2.2.10
1.2.2.11
fig. 1.2.2.11
important:
Design Envelope pumps contain a tapped hole in the motor
bracket above the discharge flange (see
fig. 1.2.2.12 ) for
draining the well. Pipe this drain hole to a floor drain to avoid
overflow of the cavity caused by collecting chilled water con-
densate or from seal failure.
fig. 1.2.2.12
1.2.3 pump piping-general
Never connect a pump to piping, unless extra care is taken to
measure and align the piping flanges well. Always start piping
from pump.
Use as few bends as possible and preferably long radius
elbows.
Do not use flexible connectors on the suction or discharge of
a vertical in-line pump, unless the pump is rigidly mounted to
a foundation.
Ensure piping exerts no strain on pump as this could distort
the casing causing breakage or early failure due to pump
misalignment.
All connecting pipe flanges must be square to the pipework and
parallel to the pump flanges.
Suction and discharge pipes may be increased or decreased at
pump nozzle to suit pump capacity and particular conditions of
installation. Use eccentric reducers on suction connection with
flat side uppermost.
Seal leaks or condensate
drain hole. Plumb to drain
for area cleanliness.
1
m (40") clearance in front of controls
is required.