AmeriWater 00HC-4090, Руководство по эксплуатации и техническому обслуживанию

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FAULT FINDING LAB STORAGE TANKS
16 98-0123 Rev E
7 FAULT FINDING
CAUTION: This section provides general details for diagnosing possible faults that may occur
during normal operation. Some of the remedial actions can only be carried out by qualified
personnel. Do not attempt to carry out any action if it involves inspecting / replacing an
electrical / mechanical component without first contacting AmeriWater for advice. Please be
aware that the unit / system may still be under pressure and contain water at scalding
temperature under certain fault conditions. When investigating any alarm, take appropriate
precautions to prevent possible injury. NEVER attempt to dismantle the unit under these
conditions. Always contact AmeriWater for advice.
7.1 Fault Finding Chart for Grundfos® CME Pump
Fault Cause Remedy
The pump does not start.
Insufficient water.
Check water supply / suction
pipe.
Overheating due to excessive
liquid temperature.
Supply cooler liquid to pump.
Overheating due to seized-up
/ choked-up pump. Remove inlet and outlet piping
and check for blockages.
Too low / high supply voltage.
Check the supply voltage and
correct the fault, if possible.
No electric supply. Connect the electric supply.
No water consumption.
Open a tap. Check that the
height between the top point
of the discharge pipe and the
pump does not exceed fifty
feet.
Pump is in alarm condition.
Reset the pump by means of
the appropriate button (refer
to Section 5.1).
The pump does not stop.
Existing pipework is leaking /
defective. Repair the pipework.
Nonreturn valve is blocked /
missing.
Clean the valve or fit a new
nonreturn valve.
The pump cuts out during
operation.
Dry running.
Check the water supply /
suction pipe.
Overheating due to excessive
liquid temperature.
Supply cooler liquid to pump.
Overheating caused by high
ambient temperature,
overloaded motor, and / or
seized-up motor / pump.
Check current draw on motor.
Check for binding of pump.
Check adequate inlet water
supply.
Too low supply voltage.
Check the supply voltage and
correct the fault, if possible.
The pump starts and stops too
frequently.
Leakage in suction pipe or air
in water.
Check the water and the
supply/suction pipe.
The pump gives electric shocks. Defective ground connection.
Connect the ground
connection to the pump in
accordance with local
regulations.