Aladdin automatic radiator vent - ensures that the radiator is always running at it's most efficient - saves energy - saves money. Never need to bleed a radiator again. HV30C fits standard 1/2" BSP radiator threads.
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Easy fit: no adjustments necessary no need to drain the system. Long, leak-free life
You should choose the end at which hot water flows into each radiator. To be sure, turn the heating system on and feel which end becomes hot first.
Select the 'off' or '0' position on your boiler, then allow your system to cool down before fitting AAVs.
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Avoid flooding by closing the isolator valves at the bottom of the radiator (at one end this will be a lockshield valve with a plastic cover) remove the cover and turn the spindle clockwise using an adjustable wrench. At the other end will either be a wheelhead valve, which can be turned off by hand, or a thermostatic valve which should be turned to ‘0’.
Use an adjustable wrench for 'type A' plugs, or a 10mm square drive for 'type B'. Be prepared for some spillage as you do this and use a cloth to dry the radiator tapping.
Remove the black dust cap and screw the AAV into the radiator using an adjustable wrench to grip it by the spanner flats – you may need to rotate quite firmly as the thread will cut into the plastic thread seal. Screw the valve in as far as possible so that the plastic safety cap is as near to vertical as possible.
Turn the two valves at the bottom of the radiator back to their original settings and switch the system back on.
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