Xylem 19 001 200 R2 SILENT STORM VFD Pumping System - Manual (Page 26)

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even electrical arcing or that something
is in a bind? This can indicate a
serious problem.
b. There is going to be some harmonic
vibration with the pumps and motor.
We are looking for excessive vibration
or noise. Can you see a bend in the
pump shaft? Do the motor and shaft
shake violently? This needs servicing
immediately. Do not operate pump if
vibration is excessive.
c. Confirm that the building cooling and
ventilation systems are operating and
clear of all obstructions. Maximum
operating range for equipment is 40°C
(104°F). Verify that water, grease, oil,
hardware, etc. are not leaking or loose
on the pump station.
8. Verify that the area surrounding the pump
shaft at the pump head has some leakage
when the pump is operational.
a. The correct leakage rate is
approximately one drop per second. If
the leakage exceeds two drops per
second, the packing gears need to be
adjusted.
WARNING: Rotating Shaft Hazard
Packing adjustment should be performed by
properly trained and qualified personnel.
Failure to follow these instructions could result in
serious personal injury, death, or property
damage.
9. Station skid:
a. Visually inspect for leaks in the station
piping, valves, and other components.
b. Visually inspect the piping and skid for
any stress cracks in the welds.
c. Visually inspect the station for loose or
damaged paint or areas of rust.
DANGER: Personal Injury Hazard
Pump station maintenance must be performed by
properly trained and qualified personnel. Hazards
exist
for electrocution, shock, rotating
components, and pressurized components.
Failure to follow these instructions will result in
death or serious injury.
WINTERIZING PUMP STATIONS
CAUTION: Equipment Damage Hazard
Your pumping system must be properly winterized
before storage. Failure to winterize the system
could result in damage to the pipes, valves,
pumps, or other components.
Failure to follow these instructions indicates a
potentially hazardous situation, which, if not
avoided, may result in property damage.
Generalized Instructions for All Pump
Stations
1. Turn all enclosure switches to the OFF
position.
2. Open (turn off) all electrical disconnects to
the pump station.
DANGER: Personal Injury Hazard
The pumping system must be disconnected from
the main power supply before attempting any
operation or maintenance on the electrical or
mechanical parts of the system.
Failure to follow these instructions will result in
death or serious injury.
3. Close all the station discharge isolation
valves.
4. Close the pump station inlet isolation
valves.
5. Close all auxiliary equipment isolation
valves (if applicable).
6. Remove all connections from the heat
exchanger inlet and discharge. Force
water from the heat exchanger core with
compressed air.