Grundfos MTS Serie Manual De Instrucciones página 15

5.1.2 Priming
Priming pumps with a DQ shaft seal, without inlet
pipe
1. For tank-top and in-tank installations, fig.
fig. 8, observe the minimum immersion depth.
See section 4.1.11 Liquid
2. Open the inlet-side valve, if installed.
3. Open the outlet-side valve.
4. Make sure that the outlet pipes are not blocked or
leaky.
5. Start the pump.
Priming pumps with a DQ shaft seal, with inlet
pipe
1. For tank-top and in-tank installations, fig.
fig. 8, observe the minimum immersion depth.
See section 4.1.11 Liquid
2. Fill the outlet area with liquid via the screwed
plug (pos. 214) then wait a few minutes. See
section 10.4 Position
3. Open the inlet-side valve, if installed.
4. Open the outlet-side valve.
5. Make sure that the outlet pipes are not blocked or
leaky.
6. Start the pump.
Priming pumps with a D8.6 shaft seal
1. Fill the shaft seal area via the screwed plugs
(pos. 215 and 216) See section
numbers.
2. For tank-top and in-tank installations, fig.
fig. 8, observe the minimum immersion depth.
See section 4.1.11 Liquid
3. For dry installations, see section
4.1.2 Installation types, fill the outlet area with
liquid via the screwed plug (pos. 214) then wait a
few minutes. See section
4. Open the inlet-side valve, if installed.
5. Open the outlet-side valve.
6. Make sure that the outlet pipes are not blocked or
leaky.
7. Start the pump.
7 and
level.
7 and
level.
numbers.
10.4 Position
7 and
level.
10.4 Position numbers.
5.1.3 Checking the direction of rotation
Do not start the pump to check the
direction of rotation until it has been filled
with liquid.
1. Switch the motor on for some seconds.
2. Make sure the motor turns clockwise (viewed
from the motor fan).
3. If the direction of rotation is wrong, exchange two
phases in the power supply.
5.1.4 Start-up
1. Make sure that the pump is filled properly.
2. Open the threaded connection in the pump
bracket.
3. Open the outlet-side valve.
4. Open the inlet-side valve.
5. Switch on the motor and check that it is running
smoothly.
6. Make sure the temperature rises at a rate of no
more than 2 °C/min.
7. Make sure the minimum outlet pressure is higher
than 2 bar.
8. After running at operating pressure and
temperature for a while, check that the pump is
not leaking.
9. Check if the filter system works properly and that
the pump is protected against entrained air, solid
particles and mud.
15