PRODUCT DESCRIPTION
2.8 System layout
Array AR SE
22
1
1
Flow-meter
2
Air pressure switch
3
Flue gas pressure switch
4
Minimum Water Pressure Switch (set to 7 psi/0.5 bar)
5
Flue gas exhaust connection
6
Gas valve
7
Gas pressure switch 2,5 mbar (only for ARRAY AR 500 SE)
8
Return temperature sensor
9
Pump
10 Relief valve
11
Gas pressure switch 8 mbar (only for ARRAY AR 500 SE)
12 Fan
Fig. 3 System layout
5
2
3
6
7
23
4
8
9
10
10
11
18
12
19
20
21
13
14
15
16
13 Ignition
14 Combustion chamber
15 Casing
16 Leg
17 Thermomanometer
18 Purge valve
19 LWCO probe
20 Safety Water High-limit Thermostat
21 Supply temperature sensor
22 Detection electrode
23 Flue sensor
17