Installation manual

Installation and servicing instructions strictly reserved for qualified gas installers
31
Output/pressure curve
70
60
50
40
30
20
10
14001000
500
2
3
9
7
8
6
1
4
5
Legend
Speed III
1 By-pass fully shut
2 Open 1/4 turn
3 Open 1/2 turn
4 Open 2 turns
Speed II
5 By-pass fully shut
6 Open 1/4 turn
7 Open 1/2 turn
Speed I
8 By-pass fully shut
9 Open 1/2 turn
Heating circuit flow rate (l/h)
Available pressure (kPa)
between heating flow and return