Slant/Fin VSL-160B Installation Instructions Manual page 23

7 - INSTALLATION - Water connections
1 = Boiler
2 = Air separator
3 = Ball valve
4 = Drain cocks
5 = Filling valve
6 = Expansion tank
7 = Filter
8 = Back fl ow preventer
Figure 7-7 Piping of the boiler 160-B
9 = Heating pump
11 = Relief valve drain
12 = Gas shut-off valve (Install manual shut-off valve 5 ft
(1.5m) above fl oor)
13 = Ground joint union
14 = Condensate drain (see also Figure 7-8)
15 = Indirect water heater pump (if needed)
16 = System pump
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