Alarko ALD 400 Series, Руководство по эксплуатации

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TROUBLESHOOTING GUIDE
If the water booster is not working:
a) Electricity: Check the power supply.
b) Tank (For ALD and ALDF): Check that there is sufficient water in the tank. If
there is no water in the tank, waterless running protection has been activated and cut
off the electricity. When the tank is full, the water booster will restart.
c) Thermal relay / For ALD and ALDF): May be tripped. Contact the service.
If the water booster is running but water does not flow from the taps or is
depressurized:
a) Valve: Check that the water booster inlet valve is closed.
b) Air Getting Trapped in the Pump: Open the air bleed plug and fill with water
and tighten the plug again.
c) Air Leak: There may be air leakage in the suction line. Check it. Block if any.
d) Motor Direction of Rotation (For ALD and ALDF): May be reversed. Check that
the pump shaft rotates in the direction of the arrow marked on the nameplate. If the
direction of rotation is reverse, contact the service.
If the Water Booster Turns On and Off Frequently:
a) Pierced Membrane: Remove the screwed plastic valve cover on the tank. Press
the valve with an object like a pen. If water comes in, the membrane is cracked and
cannot function. The membrane must be changed and the operating pressure must
be pressurized with x 0,9 bar.
b) Low Pressure Tank: The gas or air pressure inside the membrane tank may be
insufficient. Contact the service.
c) Overpressure Tank: The gas or air pressure inside the membrane tank may
be excessive. Contact the service.
The pressure of the gas in the tank should be about 0.5 bar lower than the
operating pressure of the pumps.
d)
Pressure switch setting may be incorrect.