Heating Brochure 2021

TECHNICAL DATA
Product Codes 330104833010473301046
2418 30
Efficiency
ERP rating - heating/DHW
ERP data - seasonal space heating efficiency
ERP data - water heating energy efficiency
ERP data - noise level
ERP data - tapping profile
SEDBUK rating
SAP efficiency 2005
SAP efficiency 2009/2012
Rating
%
%
dB
-
Band
%
%
A
94
-
49
-
A
90.1
89.5
A
94
-
51
-
A
90.2
89.4
A
94
-
51
-
A
90.3
89.5
Power & Performance
DHW flow rate ∆T @ 35ºC
Heat output max (CH)
Heat output max (DHW)
Min/Max heating temperature (high temp. range)
Min/Max heating temperature (low temp. range)
DHW temperature min/max
l/min
kW
kW
°C
°C
°C
-
22
-
35/82
20/45
-
-
18
-
35/82
20/45
-
-
28
-
35/82
20/45
-
Characteristics
Minimum ambient temperature
DHW minimum flow rate
DHW pressure - min/max
Built-in expansion vessel capacity
Servicing clearances - top/front/bottom
Servicing clearances - left/right
Weight
NOx
°C
l/min
bar
I
mm
mm
kg
mg/kWh
5
-
-
8
300/450/250
5/5
28.5
53
5
-
-
8
300/450/250
5/5
28.5
57
5
-
-
8
300/450/250
5/5
31.1
51
Electrical Data
Electrical supply
Protection grade of electrical system
V/Hz
IP
230/50
X5D
230/50
X5D
230/50
X5D
CLAS ONE CLAS SYSTEM ONE
/ XTRATECH™ stainless steel heat exchanger
/ High domestic hot water flow rates
/ 'Auto' function technology
/ Comfort function
/ High efficiency pump
/ 1:7 modulation
/ Quiet operation starting at 49dB
/ Lightweight unit starting at 29kg
/ 8 year warranty
/ 'A' ErP rated for optimum energy efficiency
/ Large backlit display
/ Includes LPG conversion kit
/ Ariston NET compatible
/ XTRATECH™ stainless steel heat exchanger
/ 'Auto' function technology
/ Comfort function
/ High efficiency pump
/ 1:7 modulation
/ Quiet operation starting at 49dB
/ Lightweight unit starting at 29kg
/ 8 year warranty
/ 'A' ErP rated for optimum energy efficiency
/ Large backlit display
/ Includes LPG conversion kit
/ Ariston NET compatible
The lightweight Clas ONE comes complete
with an 8 year warranty and a range of high-
end features including a large backlit display,
an energy saving 'Auto' function and easy-to-
use backlit display.
The lightweight Clas System ONE comes
complete with an 8 year warranty and a range
of high-end features including a large backlit
display, an energy saving 'Auto' function and
easy-to-use backlit display.
KEY
A \ Central heating flow
B \ Domestic hot water outlet
C \ Gas inlet
D \ Domestic cold water inlet
E \ Central heating return
TECHNICAL DATA
Product Codes
330104533010443301043
3024 38
Efficiency
ERP rating - heating/DHW
ERP data - seasonal space heating efficiency
ERP data - water heating energy efficiency
ERP data - noise level
ERP data - tapping profile
SEDBUK rating
SAP efficiency 2005
SAP efficiency 2009/2012
Rating
%
%
dB
-
Band
%
%
A/A
94
82
51
XL
A
90.2
89.4
A/A
94
83
49
XL
A
90
89.4
A/A
94
85
52
XXL
A
90
89.4
Power & Performance
DHW flow rate ∆T @ 35ºC
Heat output max (CH)
Heat output max (DHW)
Min/Max heating temperature (high temp. range)
Min/Max heating temperature (low temp. range)
DHW temperature min/max
l/min
kW
kW
°C
°C
°C
12.5
28
30
35/82
20/45
36/60
10.4
22
26
35/82
20/45
36/60
15.5
31
38
35/82
20/45
36/60
Characteristics
Minimum ambient temperature
DHW minimum flow rate
DHW pressure - min/max
Built-in expansion vessel capacity
Servicing clearances - top/front/bottom
Servicing clearances - left/right
Weight
NOx
°C
l/min
bar
I
mm
mm
kg
mg/kWh
5
2
0.2/7.0
8
300/450/250
5/5
32.3
51
5
2
0.2/7.0
8
300/450/250
5/5
29.7
53
5
2
0.2/7.0
8
300/450/250
5/5
33.4
55
Electrical Data
Electrical supply
Protection grade of electrical system
V/Hz
IP
230/50
X5D
230/50
X5D
230/50
X5D
KEY
A \ Central heating flow
C \ Gas inlet
D \ Domestic cold water inlet
E \ Central heating return
ENERGY RATING ENERGY RATING
A A
A
PERFORMANCE
CERTIFIED BY
TÜV RHEINLAND
GROUP
PERFORMANCE
CERTIFIED BY
TÜV RHEINLAND
GROUP
XtraTech™
stainless-steel heat exchanger
XtraTech™
stainless-steel heat exchanger
EASY
MAINTENANCE
EASY
MAINTENANCE
EASY
INSTALLATION
EASY
INSTALLATION
SYSTEM
MANAGEMENT
SYSTEM
MANAGEMENT
AUTO
FUNCTION
AUTO
FUNCTION
ITALIAN
DESIGN
ITALIAN
DESIGN
EASY
TO USE
EASY
TO USE
SUPER
SILENT
SUPER
SILENT
150
315 (Mod. 24)
385 (Mod. 30/38)
180
25745
150
315 (Mod. 18/24)
385 (Mod. 30)
180
25745
ARISTON NET
COMPATIBLE
ARISTON NET
COMPATIBLE
24