LAMA MasterMegadisc Manual De Instrucciones página 11

Lama Discs
Fault locator
1. Water leaks from the drains of the Globo cleaning valves.
Wait for the pressure in the system to be at least 1kg/cm². If necessary, the pressure or flow rate should be increased
to reach this minimum pressure. When the flow rate or pressure are low, sometimes it is necessary to install stabilising
valves at the outlet of the system to increase the pressure.
2. High pressure drop when starting to fill the pipes.
When there is an excess flow rate due to low pressure in the pipes, a manual valve should be installed and closed
off. Alternatively, a system with an intelligent controller and stabilising valve can be used. After some time and once
the pipe system is full, the losses should match the flow rate and values given in the tables. The switchboards have a
system in place for delaying the start of the washing cycle to avoid this situation. See the model used in the controllers
section.
3. Repeated backwashing. This can appear for different reasons:
• Due to a high pressure drop (see previous point).
• Short delay time for starting the washing cycle (see controller manual).
• Due to excess impurities in the water, in which case reducing the flow rate is recommended until the ducts are clean.
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After waiting some time, the flow rate can be increased gradually.
• Check that the differential pressure is suitable.
• Because washing is not completed correctly, due to the washing time being too short or a lack of washing pressure
(see minimum values required according to model).
4. Washing is not carried out and there is a loss of pressure.
Check that the base plugs are connected to the solenoids and that the safety screws are tight. Check that the stop-
cock controlling the supply to the auxiliary filter is open.
It may be that the pressure connections to the sensors or to the pressure switch are wrong or badly adjusted. The
three-way valves or solenoids can be in an incorrect manual position
5. Problems with suction devices.
If there are water leaks when pressure is first applied or an object is introduced at closure, close the optional shut-off
valve and/or eliminate the pressure before disassembling by unscrewing the base. Clean it, screw it back on, and
open the air valve.
Starting up after a long shutdown period
1. Start the system up and slowly increase pressure. Complete two or three washing cycles in a row by pressing the
manual button on the switchboard. Check that the maximum pressure supported by the system is NOT surpassed.
2. The discs may be dry and compacted due to being dirty. It is recommended to remove and clean them by following
the instructions and photographs for each filter.
3. The controller has a partial counter for the number of washing cycles. If you set it to zero, save the number of
cycles. There are controllers which keep a total count.
4. It is recommended to replace the discs with new ones every 7,000 cycles.
5. It is recommended to change the seals and membranes or diaphragms every 14,000 cycles.
6. Clean the solenoids if the drainage microtubes marked in yellow no longer drain.
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