Technical Information - Ariston CLAS EVO Series Servicing Instructions

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Model Name
CE certifi cation (pin)
Boiler type
Max/min nominal heat input(Hi)
Max/min nominal heat input (Hs)
Max/min nominal heat input for hot water (Hi)
Max/min nominal heat input for hot water (Hs)
Heat output: max/min
D.H.W. Heat output: max/min
Combustion effi ciency (at fl ue) Hi/Hs
Gross effi ciency of nominal heat input (60/80 °C) Hi/Hs
Gross effi ciency at 30 % at 47°C
Gross effi ciency at minimum power Hi/Hs
Number of effi ciency stars (Directive 92/42/EEC)
Rating Sedbuk
Ma. heat loss to the casing (ΔT = 50°C)
Heat loss through the fl ue when burner on
Heat loss through the fl ue when burner off
Residual discharge head
Nox class
Flue fumes temperature (G20)
CO2 content (G20)
2
CO content (0 %0 )
2
O2 content2 (G20)
Max capacity fumes (G20)
Excess air
Load losses water side (max) ΔT=20°C
Residual head for the system
Expansion vessel pre-charged pressure
Maximum central heating circuit pressure
Expansion vessel capacity
Central heating temperature: max/min(high temperature
range)
Domestic hot water temperature max/min
Specifi c fl ow rate of domestic hot water system (10 min. with
ΔT=30°C)) instant boilers
D.H.W. fl ow rate ΔT=25°C
D.H.W. fl ow rater ΔT=35°C
Hot water comfort stars (EN13203)
D.H.W. minimum fl ow rate
Domestic hot water pressure max/min
Power supply voltage/frequency
Power consumption
Minimum operating room temperature
Electric system grades of protection
Weight
10
Hi/Hs
product description
Technical Data
CLAS EVO 24 CF
1312BR4794
kW 25,8 / 11,0
kW 28,7 / 12,2
kW 27 / 11,0
kW 30 / 12,2
kW 23,7 / 9,9
kW 24,8 / 99
% 93,0
% 91,9 / 82,8
% 91,2 / 82,1
% 90,2 / 81,2
stars ***
class D
% 1,1
% 7,0
% 0,4
Pa 3
class 3
°C 118
% 5,8
ppm 53
% 10,1
kg/h 63,6
% 93
(mbar) 200
bar 0,25
bar 1
bar 3
l 8
°C 82 / 35
°C 60 / 36
l/min 12,2
l/min 14.5
l/min 10,2
stars 3
l/min 1,7
bar 7
V/Hz 230/50
W 79
°C +5
IP X5D
kg 30
CLAS EVO CLAS EVO
SYSTEM 24 CF SYSTEM 28 CF
1312BR4923
B11 - B11bs
25,8 / 11,0 29,5 / 13,0
28,7 / 12,2 32,8 / 14,4
27 / 11,0 30,5 / 13
30 / 12,2 33,9 / 14,4
23,7 / 9,9 26,7 / 11,2
24,8 / 99 27,6 / 11,2
93,0 92,3
91,9 / 82,8 90,6 / 81,6
91,2 / 82,1 89,7 / 80,8
90,2 / 81,2 86,5 / 77,9
*** **
D D
1,1 1,7
7,0 7,7
0,4 0,4
3 3
3 3
118 133
5,8 6,2
53 41
10,1 9,3
63,6 68,9
93 80
200 200
0,25 0,25
1 1
3 3
8 8
82 / 35 82 / 35
60 / 40 60 / 40
230/50 230/50
79 90
+5 +5
X5D X5D
30 31