A.O. Smith COF-245 - Manual (Page 4)

1 Pressure reducing valve
3 T&P valve
4 Stop valve
5 Non-return valve
6 Circulation pump
7 Destratifi cation pump
9 Drain valve
11 Isolating valve
12 Temperature gauge
14 Hot water outlets
15 Expansion relief valve
16 Expansion vessel
17 Three way valve
18 Water tank
19 Float valve
A Cold water
B Hot water
C Return circulation
E Overfl ow
H Expansion vent pipe
A.O. Smith unvented system kits utilise combination valves.
Further installation and connection details can be found in
the Installation & Commissioning Manual.
COF
Installation diagrams
Vented
Unvented