System Layout - Riello Array AR 399 SE Installation, Operation And Service Manual

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