Grundfos UPML, Инструкция по установке и эксплуатации

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15
English (US)
10. Fault finding
11. Disposal
This product or parts of it must be disposed of in an
environmentally sound way:
1. Use the public or private waste collection service.
2. If this is not possible, contact the nearest Grundfos company
or service workshop.
Subject to alterations.
DANGER
Electric shock
Death or serious personal injury
- Before starting any work at the pump, switch off
the power supply. Make sure that the power supply
cannot be switched on accidentally.
- Be aware that capacitors will be live up to 30
seconds after the power supply has been switched
off.
Before dismantling the circulator, drain the system,
or close the isolating valves on either side of the
circulator.
CAUTION
Hot liquid
Minor or moderate personal injury
- The pumped liquid may be scalding hot.
CAUTION
Pressurised system
Minor or moderate personal injury
- The pumped liquid may be under high pressure.
Fault Power supply Cause Remedy
1. The pump does not run. No power supply. a) The system is switched off. Check the system controller.
b) One fuse in the installation is
blown.
Replace the fuse.
c) The current-operated or
voltage-operated circuit
breaker has tripped.
Cut in the circuit breaker.
d) Power supply failure. Check that the power supply falls within
the specified range.
Normal power supply. a) The controller has switched off. Check the controller and its settings.
b) The pump is blocked by
impurities.
Remove the impurities.
c) The pump is defective. Replace the pump.
2. The pump cannot be
controlled and only runs at
maximum speed.
Normal power supply. a) No signal through the signal
cable.
Check if the cable is connected to the
controller. If yes, replace the cable.
3. Noise in the system. Normal power supply. a) Air in the system. Vent the system.
b) The outlet pressure is too high. Reduce the setting of the controller or
the valve.
4. Noise in the pump. Normal power supply. a) Air in the pump. Let the pump run. The pump vents itself
over time.
b) The inlet pressure is too low. Increase the inlet pressure or check the
air volume in the expansion tank, if
installed.
5. Insufficient flow. Normal power supply. a) The pump performance is too
low.
Check the controller and its settings.
b) The hydraulic system is closed
or the system pressure is
insufficient.
Check the check valve and filter.
Increase the system pressure.
UPMM_UPML_UPMXL_US.book Page 15 Tuesday, February 26, 2019 10:18 PM