Xylem IM158 R04 Model SMVT - Manual (Page 23)

SMVT Installation, Operation and Maintenance Manual 21
Precautions
Warning: Do not operate units without safety guards in place or severe personal
injury may result.
Warning: Splashing or immersing open drip proof motors in fluid can cause fire,
shock, burns or death. Make sure motor guards are in place.
Starting
1. Make sure suction valve and any recirculation or cooling lines are open.
2. Fully close or partially open discharge valve as dictated by system conditions.
3. Start driver.
Warning: DO NOT operate unit without safety guards in place. To do so could
result in severe personal injury or death.
Caution: Immediately observe pressure gauges. If discharge pressure is not
quickly attained, stop driver, re-prime and attempt to restart.
4. Slowly open discharge valve until the desired flow is obtained.
Caution: Observe pump for vibration levels, bearing temperature and excessive
noise. If normal levels are exceeded, shut down and resolve.
5. After stabilizing the system at normal operating conditions, check the piping and adjust
supports if needed.
Operation
General considerations:
Caution: Always vary capacity with regulating valve in the discharge line. Never
throttle flow from the suction side.
Caution: Driver may overload if the pumpage specific gravity (density) or
viscosity is greater than originally assumed or the rated flow rate is exceeded.
Caution: Always operate the pump at or near the rated conditions to prevent
damage resulting from cavitation or recirculation.
Commissioning, Startup, Operation and Shutdown (continued)
Hazardous machinery
can cause personal
injury or death.
WARNING