17
ENGLISH
Multigas table
DESCRIPTION
CIAO GREEN 25 C.S.I.
CIAO GREEN 29 C.S.I.
Boiler dimensions
Height
mm
715
715
Width
mm
405
405
Depth of housing
mm
250
250
Boiler weight
kg
27
27
Flow rate (G20)
Air capacity
Nm
3/
h
24,908
31,135
31,135
36,116
Flue gas capacity
Nm
3
/h
26,914
33,642
33,642
39,025
Mass
À
ow of
À
ue gas (max-min)
gr/s
9,025-2,140
11,282-2,140
11,282-2,568
13,087-2,568
Flow rate (G31)
Air capacity
Nm
3/
h
24,192
30,240
30,240
35,078
Flue gas capacity
Nm
3
/h
24,267
31,209
31,209
36,203
Mass
À
ow of
À
ue gas (max-min)
gr/s
8,410-2,103
10,513-2,103
10,513-2,523
12,195-2,523
Fan performance
Residual head of concentric pipes 0.85m
Pa
30
25
Residual head of separate pipes 0.5m
Pa
90
100
Residual head of boiler without pipes
Pa
100
110
Concentric
À
ue gas discharge pipes
Diameter
mm
60-100
60-100
Maximum length
m
5,85
4,85
Drop due to insertion of a 45°/90° bend
m
1,3/1,6
1,3/1,6
Hole in wall (diameter)
mm
105
105
Concentric
À
ue gas discharge pipes
Diameter
mm
80-125
80-125
Maximum length
m
15,3
12,8
Losses for a 45°/90° bend
m
1/1,5
1/1,5
Hole in wall (diameter)
mm
130
130
Separate
À
ue gas discharge pipes
Diameter
mm
80
80
Maximum length
m
45+45
40+40
Losses for a 45°/90° bend
m
1/1,5
1/1,5
Installation B23P–B53P
Diameter
mm
80
80
Maximum length of drainage pipe
m
70
65
NOx class
class 5
class 5
Emission values at max. and min. rate of gas G20*
Maximum - Minimum CO s.a. less than
ppm
180 - 20
160 - 20
CO
2
%
9,0 - 9,5
9,0 - 9,5
NOx s.a. lower than
ppm
30 - 20
35 - 25
Flue gas temperature
°C
65 - 58
63 - 58
* Check performed with concentric pipe ø 60-100, length 0.85m - water temperature 80-60°C
DESCRIPTION
Methane gas (G20)
Propane (G31)
Lower Wobbe index (at 15°C-1013 mbar)
MJ/m
3
S
45,67
70,69
Net Calori
¿
c Value
MJ/m
3
S
34,02
88
Supply nominal pressure
mbar (mm W.C.)
20 (203,9)
37 (377,3)
Supply minimum pressure
mbar (mm W.C.)
10 (102,0)
Diaphragm (number of holes)
Number
1
1
25 C.S.I. 29 C.S.I. 25 C.S.I. 29 C.S.I.
Diaphragm (diameter of holes)
mm
4,8
5,6
3,8
4,3
Silencer diaphragm (diameter)
mm
31
-
27
29
Heating maximum gas capacity
Sm
3
/h
2,12
2,64
kg/h
1,55
1,94
DHW maximum gas capacity
Sm
3
/h
2,64
3,07
kg/h
1,94
2,25
Heating minimum gas capacity
Sm
3
/h
0,53
0,63
kg/h
0,39
0,47
DHW minimum gas capacity
Sm
3
/h
0,53
0,63
kg/h
0,39
0,47
Number of fan rotations with slow switch-on
rpm
4.000
4.000
4.000
4.000
Maximum number of fan rotations (heating)
rpm
4.900
5.300
4.900
5.200
Maximum number of fan rotations (DHW)
rpm
6.100
6.200
6.100
6.000
Minimum number of fan rotations (heating)
rpm
1.400
1.400
1.400
1.400
Minimum number of fan rotations (DHW)
rpm
1.400
1.400
1.400
1.400
