
1 exchanger
2 antifreeze heater
3 water temperature probes
4 drain
5 water flow switch
6 vent
7 system loading safety pressure switch
8 pump
9 safety valve
10 N.D.
11 shut-off valves
12 filter
13 flexible couplings
14 piping supports
15 exchanger chemical cleaning bypass
16 system cleaning bypass
Standard Unit
Unit + pump
Unit + storage tank