BTS BTKF-K Serie Manual Del Usuario página 53

Scheme 1a Scheme 1b Scheme 1c
Attention! Transition time from star to delta should be short in star-delta connected
motors. In case that it is long damages may occur in pump and motors.
Motor Power Y- Setup time
<30 kW <3 seconds
>30 kW <5 seconds
Table 2
- After all abovementioned operations are completed, pump rotor should be rotated a
few turns for being sure that it rotates easily.
- All safety guards should be installed into their places. Pump should absolutely be
not operated after this operation is made. This is a safety and occupational safety
rule which should absolutely be obeyed.
FIRST START
Controls Before Operation
- If there is bottom back flow liquid valve in pump with depth suction; they are filled
with liquid from filling hole in highest point and its air is taken.
- This case does not cause problem in force feed pumps. Suction valve is opened if
any. Air plugs are loosen and discharge of air and completely filling of pump is
provided.
- If system includes vacuum pump, rise of liquid in suction pump by means of
vacuum pump and filling pump is provided. When liquid reaches the highest level
pump is started.
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