Figure 13. CH boiler water connections
a
b
2
.1.2- HCH Model
a)Central heating pipe 3/4" outlet line (hot)
b)Central heating pipe 3/4" return line (cold)
2
.1.3- HST Model
a)Central heating pipe 3/4" outlet line (hot)
b) Boiler outlet line 1/2" (hot)
c) Boiler return line 1/2" (cold)
d) Installation Filling line 1/2"
e) Central heating pipe 3/4" return line (cold)
a b
c
d e
Figure 14. ST boiler water connections
EN
4
