Domestic water purifier - has filters, chemical cleaning and sterilising units, bar-coded filter elements and microprocessor control

摘要

A new drinking water treatment unit (1) contains a number of exchangeable filter elements (5) and at least one sterilising unit (6). At least two water purifiers (5,5') and one chemical water purifier (10) may be used. The filters are electronically monitored and controlled. The filter elements are individually numbered and date stamped. The treatment unit may be controlled by a microcomputer (4). The treated water flow rate is 0.4 to 1.2 l/m. The unit is electrically connected in parallel with a water heater and is located in the same housing as the water heater. The control unit sums the quantity of water used and provides an acoustic or visual alarm when exchange of a filter element is due. The supply of water may be automatically shut off if a filter element is not exchanged at the correct time. The treatment unit is connected upstream or downstream of a drinking water storage tank. A temp. controller (7) is provided downstream of the treatment unit and maintains the water at a required temp. in the range 10 to 20 degrees C.