Ferroli 18ov Technical Specification - page 10
Combination
Open Vent
Modena HE
Optimax HE PLUS
DOMI
condens HE
Optimax HE PLUS
27c
32c
31c
38c
HE 26c
18ov
25ov
Ferroli product codes
0T1R2IGA
5yr
ZU0T1R2IGA
2yr
0T1R3IGA
5yr
ZU0T1R3IGA
2yr
0M7F6IGA
0M7F7IGA
0CAJ5ITA
0M7Q3IGA
0M7Q4IGA
Warranty*
5/2
5/2
5
5
2
5
5
NOx emissions class (mg/kWhr)
5
5
5+(23)
5+(22)
3+(126)
5+(19)
5+(23)
Energy marking rating (92/42 EEC directive)
HHHH
HHHH
HHHH
HHHH
HHHH
HHHH
HHHH
SAP
2009 annual/2005 seasonal efficiency %
NG
89.2/90.3
89.2/90.3
89.0/90.4
89.3/90.5
88.4/90.0
89.4/90.4
89.1/90.5
LPG
90.4/92.2
90.4/92.2
90.2/92.0
90.5/92.5
90.7/92.1
90.6/92.6
89.9/91.4
Output max/min
Heat input
kW
25.0/5.8
29.5/6.7
25.2/5.3
30.8/6.6
25.0
18.0/3.0
28.0/8.3
Useful heat output 80°C – 60°C
kW
24.5/5.7
28.9/6.6
24.6/5.2
30.2/6.3
24.4
17.7/2.9
24.7/7.3
Useful heat output 50°C – 30°C
kW
26.5/6.2
31.3/7.2
26.6/5.7
32.5/6.9
26.0
19.0/3.2
26.4/8.0
Central heating
Maximum operating temperature
ºC
90
90
90
90
90
85
80
Operating pressure central heating
Max.
bar
3
3
3
3
3
3
3
Min.
bar
0.8
0.8
0.8
0.8
0.8
0.3
0.3
Expansion vessel capacity
litres
8
10
8
10
8
N/A
N/A
Expansion vessel pre-fill pressure
bar
0.8
0.8
1
1
1
N/A
N/A
Boiler water content
litres
1.7
2.1
1.5
2.0
1.5
1.0
1.5
DHW
Maximum DHW production
∆t 25°C
l/min
15.5
18.3
17.6
21.6
14.0
-
-
∆t 30°C
l/min
12.9
15.3
14.7
18.0
11.6
-
-
∆t 35°C
l/min
11.1
13.1
12.6
15.4
10.0
-
-
Operating pressure DHW
Max.
bar
9
9
9
9
9
-
-
Min.
bar
0.3
0.3
0.25
0.25
0.25
-
-
Dimensions & weights
Height
mm
600
600
700
700
700
630
630
Width
mm
400
400
400
450
400
320
400
Depth
mm
320
320
330
330
330
280
280
Weight (empty)
kg
29
31.5
37
42
35
19
27
Fittings
Gas fitting
mm
22
22
22
22
22
22
22
Central heating fittings
mm
22
22
22
22
22
22
22
DHW circuit fittings
mm
15
15
15
15
15
Power supply
Max power input
W
100
120
130
140
135
50
50
Power supply voltage/frequency
V/Hz
230V/50Hz
230V/50Hz
230V/50Hz
230V/50Hz
230V/50Hz
230V/50Hz
230V/50Hz
Index of protection
IP
IPX5D
IPX5D
IPX5D
IPX5D
IPX5D
IPX5D
Maximum equivalent flue lengths
Max horizontal flue length 60/100mm Ø
m
7
7
5
5
5
5
5
Max vertical flue length 60/100mm Ø
m
8
8
6
6
6
6
6
Max horizontal flue length 80/125mm Ø
m
20
20
14
14
11
15
15
Max vertical flue length 80/125mm Ø
m
20
20
15
15
12
16
16
Total equivalent length two pipe 80mm Ø
m
80
70
75
55
55
95
95
Filling loop
Yes
Yes
Yes
Yes
Yes
No
No
Hanging bracket
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Pre-wired mains cable supplied
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Technical specifications
*Excludes The Republic of Ireland. UK warranty is subject to terms and conditions – please refer to the document enclosed with the boiler or contact our service department for further information.
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