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7 Dec 2002 at 1:46 am
#293355
Harold Kestenholz
Participant
You might be missing the system height pressure requirement, a pump on the return instead of on the supply problem ‘pumping away’, or a purging procedure problem.
Read: http://64.226.150.132/hydronic/service/purgeair.htm
and http://64.226.150.132/hydronic/des/start.htm#Positive