15GDS/20GDS Installation, Operation and Maintenance Manual
5
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.
Precautions before work
Observe the following safety precautions before working with or in connection with the
product:
• Make sure that there are no poisonous gases within the work area.
• Provide a suitable barrier around the work area, for example a guard rail.
• Make sure that all safety guards are in place and secure.
• Make sure that the equipment is properly insulated when operating at extreme
temperatures.
• Allow all system and pump components to cool before you handle them.
• Make sure that you have a clear path of retreat.
• Make sure that the product cannot roll or fall over and injure people or damage
property.
• Make sure that the lifting equipment is in good condition.
• Use a lifting harness, a safety line, and a breathing device as required.
• Make sure that the product has been thoroughly cleaned.
• Make sure that a first-aid kit is close at hand.
• Check the explosion risk before welding or using electric hand tools.
Precautions during work
Observe the following safety precautions when working with or in connection with the
product:
• Never work alone.
• Stay clear of suspended loads.
• Always lift the product by its lifting device.
• Beware of the risk of a sudden start if the product is used with an automatic level
control.
• Beware of the starting jerk, which can be powerful.
• Rinse the components in water after disassembling the pump.
• Do not exceed the maximum working pressure of the pump.
• Do not open any vent or drain valves or remove any plugs while the system is
pressurized. Ensure that the pump is isolated from the system and that pressure is
relieved before you disassemble the pump, remove plugs, or disconnect piping.
Introduction and Safety (continued)
