Bell & Gossett P2000452 Series 580 - Manual (Page 16)

Commissioning, Startup, Operation, and
Shutdown
Preparation for startup
WARNING:
• Failure to follow these precautions before you start the pump will lead to serious personal injury and
equipment failure.
• Do not operate the pump below the minimum rated flows or with the suction or discharge valves
closed. These conditions can create an explosive hazard due to vaporization of pumped fluid and can
quickly lead to pump failure and physical injury.
• If the pump, motor, or piping operate at extremely high or low temperatures, then guarding or
insulation is required. Failure to follow these instructions can result in serious personal injury or
death, and property damage.
• Always disconnect and lock out power to the driver before you perform any installation or
maintenance tasks. Failure to disconnect and lock out driver power will result in serious physical
injury.
• Operating the pump in reverse rotation can result in the contact of metal parts, heat generation, and
breach of containment.
Precautions
NOTICE :
• Verify the driver settings before you start the pump.
• Make sure that the warm-up rate does not exceed 2.5°F (1.4°C) per minute.
You must follow these precautions before you start the pump:
• Flush and clean the system thoroughly to remove dirt or debris in the pipe system in order to prevent
premature failure at initial startup.
• Bring variable-speed drivers to the rated speed as quickly as possible.
• Run a new or rebuilt pump at a speed that provides enough flow to flush and cool the close-running
surfaces of the stuffing-box bushing.
• If temperatures of the pumped fluid will exceed 200°F (93°C), then warm up the pump prior to
operation. Circulate a small amount of fluid through the pump until the casing temperature is within
100°F (38°C) of the fluid temperature.
At initial startup, do not adjust the variable-speed drivers or check for speed governor or over-speed trip
settings while the variable-speed driver is coupled to the pump. If the settings have not been verified, then
uncouple the unit and refer to instructions supplied by the driver manufacturer.
Check the rotation
WARNING:
• Operating the pump in reverse rotation can result in the contact of metal parts, heat generation, and
breach of containment.
• Always disconnect and lock out power to the driver before you perform any installation or
maintenance tasks. Failure to disconnect and lock out driver power will result in serious physical
injury.
1. Unlock power to the driver.
2. Make sure that everyone is clear, and then jog the driver long enough to determine that the direction
of rotation corresponds to the arrow on the pump.
Commissioning, Startup, Operation, and Shutdown
14 Series 580 Installation, Operation, and Maintenance Manual