6
Product description
ATAG XL W hydraulic circuit diagram
Legend:
1 heat exchanger 1 = burner A
2 heat exchanger 2 = burner B
3 ignition
4 ceramic
burner
5 gas
valve
6 fan
ÀXHQRQUHWXUQYDOYH
8 venturi
9 automatic air vent
10 circulation pump
11 control unit HMI
12 burner control unit
ÀXHJDVRXWOHW
14 air inlet
15 water non return valve
7 ÀRZVHQVRU
7D VHFRQGDU\ÀRZVHQVRU
T2 return
sensor
P1 water pressure sensor
G gas
pipe
$
ÀRZSLSH&+
R
return pipe CH
C
condensate drain pipe
14
13
12
11
15
15
10
7
7
4
4
3
3
9
5
5
10
1
2
6
6
8
8
P1
R
A
C
G
T1a
T1a
T2
T2
T1
T1
Burner B
Burner A