5
Reference for electrical installation
For electrical installation recycling requirements, consult your local electric utility.
User health and safety
Safety equipment
Use safety equipment according to the company regulations. The following safety
equipment should be used within the working area depending on the fluid being
pumped:
• helmet
• safety goggles (with side shields)
• protective shoes
• protective gloves
• gas mask
• hearing protection
Note: The noise level of the product is lower than 70 dB. However,
the noise level of 70 dB may be exceeded in some installations and at
certain operating points on the performance curve. Make sure that
you understand the noise level requirements in the environment where
the pump is installed. Failure to do so may result in hearing loss or
violation of local laws.
The working area
Observe these regulations and warnings in the working area:
• Always keep the work area clean.
• Pay attention to the chemical and physical characteristics of the gas and vapors
present in hazardous areas.
• Avoid all electrical dangers. Pay attention to the risks of electric shock or arc flash
hazards.
Product and product positioning requirements
Observe these requirements for the product and the product positioning:
• Never operate a pump unless safety devices are installed.
• Three-phase motors must have a properly sized starter with properly sized heaters
to provide overload and undervoltage protection. Single-phase motors have built-in
overload protectors.
• Never start a pump without the proper priming.
• Never run a pump below the minimum rated flow or with any suction or discharge
valve closed.
Electrical connections
Electrical connections must be made by authorized electricians in compliance with all
international, national, state, and local rules.
Observe the following regulations and warnings for electrical connections.
• Make sure that the product is isolated from the power supply and can not be
energized by mistake. This rule applies to the control circuit as well.
• Make sure that the thermal contacts are connected to a protection circuit according
to the product approvals, and that they are in use.
Observe the following regulations for grounding connections.
Table 2: Grounding
Grounding regulation
Comment
All electric equipment must be grounded.
This rule applies to pumps and mixers as
well as monitoring equipment.
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