KSB CHTRa, Инструкция по установке и эксплуатации

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5 Installation at Site
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CHTRa
1 2
5
4 3
6
Fig. 24: Vacuum balance system
1 Vessel under vacuum 2 Vacuum balance line
3 Shut-off element 4 Swing check valve
5 Main shut-off element 6 Vacuum-tight shut-off element
NOTE
An additional line fitted with a shut-off valve (from the pump discharge nozzle to
the balance line) facilitates venting of the pump before start-up.
5.16.7 Bypass and balancing lines
CAUTION
Impermissible piping layout
Damage to the balancing system
▷ When installing the bypass line and the balancing line, the minimum flow
diagram and/or P + I diagram must be observed.
▷ Install an orifice immediately ahead of the inlet vessel to avoid vaporisation.
5.17 Electrical connection
DANGER
Electrical connection work by unqualified personnel
Risk of fatal injury due to electric shock!
▷
Always have the electrical connections installed by a trained and qualified
electrician.
▷ Observe regulations IEC 60364 and, for explosion-proof models, EN 60079.
WARNING
Incorrect connection to the mains
Damage to the mains network, short circuit!
▷
Observe the technical specifications of the local energy supply companies.
1. Check the available mains voltage against the data on the motor name plate.
2. Select an appropriate starting method.