Goulds Pumps VIT - IOM - Manual (Page 8)

General guidelines
WARNING:
Installation, Operation, and Maintenance manuals clearly identify accepted methods for disassembling
units. These methods must be adhered to. Trapped liquid can rapidly expand and result in a violent
explosion and injury. Never apply heat to impellers, propellers, or their retaining devices to aid in their removal.
If there are any questions regarding these requirements, the intended use, or if the equipment requires
modification, contact an ITT representative before you proceed.
Personnel requirements
ITT disclaims all responsibility for work done by untrained and unauthorized personnel.
These are the personnel requirements for Ex-approved products in potentially explosive atmospheres:
• All work on the product must be carried out by certified electricians and ITT-authorized mechanics.
Special rules apply to installations in explosive atmospheres.
• All users must know about the risks of electric current and the chemical and physical characteristics of
the gas and/or vapor present in hazardous areas.
• The maintenance operation for Ex approved products must be made in conformity to the
international or national standards (IEC/EN 60079-17).
Product and product handling requirements
These are the product and product handling requirements for Ex-approved products in potentially
explosive atmospheres:
• The product may be used only in accordance with the approved motor data stated on the nameplates.
• The Ex-approved product must never run dry during normal operation. Dry running during service
and inspection is only permitted outside the classified area.
• Never start a pump without the proper submergence.
• Before you start working with the product, make sure that the product and the control panel are
isolated from the power supply and the control circuit, so they cannot be energized.
• Do not open the product while it is energized or in an explosive gas atmosphere.
• Make sure that thermal contacts are connected to a protection circuit according to the approval
classification of the product.
• Intrinsically safe circuits are normally required for the automatic level-control system by the level
regulator if mounted in zone 0.
• The yield stress of fasteners must be in accordance with the approval drawing and the product
specification.
• Make sure that the equipment is properly maintained:
• Monitor the pump components and the end temperature of the liquid.
• Maintain proper bearing lubrication.
• Do not modify the equipment without approval from an authorized ITT representative.
• Only use parts that have been provided by an authorized ITT representative.
Equipment for monitoring
For additional safety, use condition-monitoring devices. Condition-monitoring devices include but are not
limited to these devices:
• Pressure gauges
• Flow meters
• Level indicators
• Motor load readings
• Temperature detectors
• Bearing monitors
• Leak detectors
• PumpSmart control system
Introduction and Safety (Continued)
6 Model VIT Installation, Operation, and Maintenance