ECA CONFEO PREMIX P 14 HM - Page 21

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9.2.2- HCH Model
a) CH flow ¾ ‘’ (hot)
b) Water filling line1/2"
c) Gas inlet ¾’’
d) CH return ¾’’ (cold)
9.2.3- HST Model
a) CH flow ¾ ‘’ (hot)
b) Boiler supply water (hot)
c) Gas inlet ¾’’
d) Boiler return (cold)
e) Water Filling Line ½ ‘’
f) CH return ¾’’ (cold)
a  c 
a  c  e f