4 Installation
4.1 Precautions
Before starting work, make sure that the safety instructions in the chapter
on page 3 have been read and understood.
DANGER: Inhalation Hazard
The chamber or tank where the equipment is installed should be treated as a confined
space. Always follow the applicable safety laws, regulations and guidelines for confined
spaces.
WARNING: Electrical Hazard
Risk of electrical shock or burn. A certified electrician must supervise all electrical work.
Comply with all local codes and regulations.
WARNING: Fall Hazard
Check that suitable barriers for the work area are in place.
Tip risk if pallet straps are removed
If the straps securing the unit to its pallet have been removed, then the unit must be secured
from tipping or falling.
CAUTION: Crush Hazard
Make sure that the unit cannot roll or fall over and injure people or damage property.
Sewage station tank ventilation
Vent the tank of a sewage station in accordance with local plumbing codes.
4.1.1 Underground utilities
Before starting excavation work, determine whether any utility installations such as sewer,
telephone, fuel, electric, or water lines, may be encountered. Utility companies and owners
must be contacted to locate utility installations.
When the excavation operations approach the estimated location of the underground
installation, the exact location must be determined by safe and acceptable means.
While the excavation is open, any underground installation must be protected, supported or
removed as necessary to safeguard employees.
4.1.2 Excavations
Before entering trenches, pits or other excavations, the following conditions must be met:
• The applicable safety laws, regulations, and guidelines for excavations are understood
and followed.
• Be aware that site conditions can change rapidly, for example due to heavy rain, rapid
thaw, vibrations or other factors.
• Do not work in an excavation or trench unless it is properly protected against collapse.
Examples of protection systems are shown in the following figures.
4 Installation
12
Flygt Top Installation, Operation, and Maintenance Manual
