Worcester GREENSTAR II HE OIL 12/22 Installation And Servicing Instructions page 5

Fig. 2. Components
1
3
2
4
5
6
7
8
1) Control panel
2) Condenser drain point
3) Secondary heat exchanger
4) Combustion product test point
5) Secondary heat exchanger inspection/cleaning port
6) Condensate drain
7) Heat exchanger drain point
8) Burner air inlet pipe
9) Oil Burner
10) Lock out reset button
11) Sight glass
12) Boiler shell
14 16
15
13
7
3
12
11
10
9
13
12
17
1
13) Auto air vent connection
14) Heating flow
15) Heating return
16) Combustion products flue exit
17) Electrical cover plate
5
14 15
13
16
6