User manual HONEYWELL BA295STN

[. . . ] According to its intended use · in good condition · With due regard to safety and risk of danger. Note that the appliance is exclusively for use in the applications detailed in these installation instructions. Any other use will not be considered to comply with requirements and would invalidate the warranty. [. . . ] 5 bar Installation conditions for the safe operation of the appliance it's not neccessary to fullfill any height dimensions Backflow preventers of this type have an integral strainer which protects the device from the ingress of dirt. With highly polluted water a fine filter should be installed upstream to ensure the correct function of the device. ⷠThe installation location should be protected against frost 7. We recommend a planned maintenance contract with an installation company 8. 1 Inspection · Frequency: every 6 month (depending on local operating conditions) · To be carried out by an installation company · Inspection with a test control unit and maintenance-set (see accessories) 8. Fit outlet shutoff valve with sealing and close it 3. Fit ball valve with sealings and close them 5. Install suitable test control unit with relief valves Take note of the instructions of the test control unit 7. Slowly open the vent valve at test control unit o Pressure in zone relieves 10. Maintain the position of the relief valve and note the differential pressure when one drop per minute emits from the discharge valve as opening point of the discharge valve The opening pressure can be read off test control unit Opening pressure under 0, 14 bar nance!Fit outlet shutoff valve with sealing and close it 3. Fit ball valve with sealings and close them 5. Install suitable test control unit with relief valves Take note of the instructions of the test control unit 7. Open ball valve zone o Pressure in zone stays constant, outlet check valve is ready for use Pressure stays not constant Maintenance! [. . . ] Disturbance Cause Remedy Discharge valve opens without Pressure strokes in water supply system Install a pressure reducing valve apparent reason upstream the backflow preventer Fluctuating inlet pressure Cartridge insert is contaminated Deposits on valve seat Discharge valve don't close Damaged 'o'ring Leaky discharge valve Flow is to low Inlet strainer is blocked Install a pressure reducing valve upstream the backflow preventer Remove cartridge insert and exchange it Remove cartridge insert and clean or exchange it Remove cartridge insert and exchange it Remove cartridge insert and clean or exchange it Remove strainer and clean it Electronic pressure measuring device with digital indicator, battery-operated. with case and accessories , ideal for inspection and maintenance of backflow preventer type BA. TKA295 Test kit Analogue pressure measuring device with differential pressure display. [. . . ]