Refilling a sealed Central Heating system
- Thread starter fetler
- Start date
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close the drain tap
make sure the auto air vent is open
open the valve on the fill loop
fill to 1-1.5 ish
vent rads
refill as nec
final press cold should be 1-1.2
make sure the auto air vent is open
open the valve on the fill loop
fill to 1-1.5 ish
vent rads
refill as nec
final press cold should be 1-1.2
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