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12.5 fan rpm updating depending on flue lengtH (e.g. figure 7)
To ensure the correct rated heat output to the maximum and minimum heat input, it is necessary to update
the speed (rpm) of the fan, it depends on the length of the flue (par. 12), in accordance with the installation of
flue and air pipes as indicated in the tables below. The factory-set value is referred to the minimum length of
flue pipe (0÷2 m for concentric, 0÷6 m for twin). To carry such updating, changing the speed of the fan (rpm)
at the maximum and minimum heat input, refer to par. 16.
pIpEs LEnGth
L
Gas
(m)
(*) 0 m ÷ m
G0
(**) m ÷ m
m ÷ 10 m
0 m ÷ m
G1
(**) m ÷ m
m ÷ 10 m
pIpEs LEnGth
L
Gas
(m)
(*) 0 m ÷ m
G0
(**) m ÷ m
m ÷ 10 m
0 m ÷ m
G1
(**) m ÷ m
m ÷ 10 m
(*) default parameters
(**) for cascade installation (fumes damper 110) use parameters equivalent m÷m.
InstructIons pErtaInInG to thE
Wh 90 MoDELs
concEntrIc pIpE Ø 110/10
(c1 – c – c)
MaX hEat output
h5-h1
h10-h51
(rpm)
(pwm%)
5500
100
5850
100
00
100
500
100
550
100
550
100
Wh 110 MoDELs
concEntrIc pIpE Ø 110/10
(c1 – c – c)
MaX hEat output
h5-h1
h10-h51
(rpm)
(pwm%)
00
100
50
100
900
100
5850
80
100
80
50
80
InstaLLEr
paraMEtErs
MIn hEat output
h1
h09
(rpm)
(pwm%)
150
1
150
1
000
15
150
1
150
1,5
1850
1
paraMEtErs
MIn hEat output
h1
h09
(rpm)
(pwm%)
1850
11
1950
11,5
050
1
100
10,5
1850
11
1950
11,5
19
IGnItIon LoaD
h11
h08
(rpm)
(pwm%)
00
0
50
0
00
5
00
5
00
5
050
0
IGnItIon LoaD
h11
h08
(rpm)
(pwm%)
100
0
900
5
00
0
100
0
900
5
00
0
91.550.1 - GB/IE
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