Carel Compact ROC 140, User Manual

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ENG
Maintenance WTS +0300130EN rel. 1.0 - 05.09.2022
9.3 Change prefilter
Before replacing the prefilter, check
• that the ROC system is switched off
• the inlet valve is closed and there is no pressure on the water line.
» Remove the pre-filter with suitable tools.
» Remove the old filter cartridge and clean the inlet.
» Replace the O-ring if necessary.
» Moisten the new O-ring and insert it.
» Insert a new filter cartridge.
» Mount the pre-filter with suitable tools.
» Open the feed water supply.
9.4 Membrane exchange
Before replacing the membrane(s), check the following:
• The ROC unit is switched off.
• The inlet valve is closed, there is no pressure on the water line.
Fig. 9.b
Fig. 9.c
» Disconnect the black hose from the membrane container.
» Unscrew the cover and pull out the old membrane cartridge.
» ROC140: Open the lids on both sides of the container and slide the membrane cartridge out through the left
opening.
» Remove the protective foil from the new membrane.
» If necessary, moisten the membrane cartridge with clean glycerine.
» Push the membrane cartridge carefully into the white membrane container without damaging the seal.
» ROC140: Insert the membrane cartridge through the right opening of the membrane container.
» Close the lid(s).
» Reconnect the black hose to the membrane container.
9.5 Maintenance scheme
9.5.1 Daily check
» Check if the system is working correctly.
» Check that there are no leaks in the water carrying components.
» Check the water inlet pressure.
Notice
: The system supply pressure (after the pre-filters) must be at least 2 bar during normal operation. Replace the
filter cartridges if the pressure loss is too high.
9.5.2 Weekly check
» Check the max. diaphragm pressure (max.10 bar!).
» Check the hardness of the water entering the system (max 30°fH)
» Check the water conductivity of the permeate with the control unit.
» Note down the data for the listed tests