LK 805 AeroSep

Air separator with mesh cage and integrated floating air bleed valve for automatic venting of heating or cooling systems. The mesh cage increases the contact face on throughflow, which results in efficient air separation.
On the top cover are 2 x air bleed valves, 1 x black for automatic venting, plus 1 x red for manual venting.

The air separator must be mounted upright in horizontal lines. In heating systems, the air bleed valve is placed in the supply line close to the heater, after any shunt valve but before the circulation pump. In cooling systems, the air bleed valve is mounted in the return line, i.e. after the cooling coil where there is maximum temperature.
The black cover for the automatic air bleed valve must be undone by approx. two turns. If the cover is screwed all the way down to the bottom, the air separator is disabled.
The manual venting valve with the red cover is designed to be used when draining large quantities of air, e.g. when commissioning the system. Undo the plastic cover, carefully press the underlying the valve spindle e.g. with a screwdriver. Protect against water spray using soft paper/a cloth.

The air separator requires no maintenance. The black plastic cover on the top of the air separator must be undone by approx. two turns. This is because continuous venting of the system must be possible. If the plastic cover is screwed all the way down to the bottom, the air separator is closed.
On seasonal startup, it may be appropriate to accelerate venting of the system using the manual air bleed valve. (The red plastic cap). Undo the plastic cover, carefully press the underlying the valve spindle e.g. with a screwdriver. Protect against water spray using soft paper/a cloth. The plastic cover has to be put back after this action.