ATURIA TK, Instruction Manual

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LTK0E01D 05/2017
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5.1 Startup
Before starting the pump it is necessary to fill it with water through the suited filling hole, located on suction
casing. Once the pump has been primed, close delivery gate valve and start the pump for a fraction of a
second to check rotation direction. Open gradually but within a minute the delivery gate valve, as running
with the valve closed may cause water overheating leading to pump seizing (startup with gate valve closed
reduces the initial transient voltage peak).
Check rotation direction against the arrow on pump/motor casing; if motor rotation does not match the one
shown by the arrow, reverse two motor phases (in case of three-phases motors).
Once started the group, open delivery gate valve slowly but fully till reaching the required pressure shown on
pressure gauge.
Avoid dry running.
During operation, check shaft seal. If a mechanical seal is installed, there should be no leaks; with gland
packing, there should be a continuous dropping to ensure lubrication between packing and shaft sleeve.
Check also that the pump runs within its operating limits and that voltage rates reported on control panel do
not exceed motor nameplate rated values. If necessary, partially close gate valve or adjust the intervention of
pressure switches.
However, if some malfunctioning is detected during startup, stop immediately the pump and
investigate the problem starting with the Fault Finding chart (chapter 7).
Attention: The system should be fully completed before starting the pump, especially for what concerns
electrical, mechanical an hydraulic components. All safety systems must be correctly operating.
STARTING THE PUMP WITHOUT COUPLING GUARD AND MOTOR TERMINAL BOARD COVER IS
ABSOLUTELY PROHIBITED.
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