BSII

Kompaktiškas pakabinamasis katilas

Kompaktiškas pakabinamasis katilas BSII | Ariston
Kompaktiškas pakabinamasis katilas
 
  • Thanks to the accurate design of the combustion unit, BS II has a very high efficiency, up to 93,8% (24 FF) in the category of traditional boilers;
  • The clear user interface, with LED display, permits an easy setting of the parameters, and the visualization of the error codes, through the auto diagnostic system;
  • Thanks to the addition of a thermostatic mixing valve, BS II permits the connection with a natural circulation solar water heater;
  • Thanks to the connection with on-off thermoregulation accessories, BS II allows the heating programming for the whole week;
  • The boiler is already equipped with a three way-valve and a sanitary heat exchanger for the domestic hot water production, up to 11,3 l/min, a very high value in its category;
  • The increased expansion vessel makes the boiler suitable for large areas heating;
  • BS II is made up with the best material available: the copper used for the primary heat exchanger, and the stainless steel for the sanitary exchanger,guarantee high reliability and very long lifecycle;
  • The use of antiseizing systems prevent freezing and scale accumulation, protecting not only the wall-hung boiler, but even your whole system;
  • The short reaction time NTC probes guarantee boiler protection from low pressure working conditions;
  • The external combustion analysis port permits an easy check of combustion quality;

TECHNICAL DATA

 

24 CF

24 FF

Chamber

 

open

closed

POWER SPECIFICATIONS

 

 

 

Max/min nominal heat input(Hi)

kW

25,8 / 11,0

25,8 / 11,0

Gross efficiency of nominal heat input (60/80 °C) Hi/Hs

%

91,9 / 82,8

93,8 / 84,5

Gross efficiency at 30 % at 47°C Hi/Hs

%

91,2 / 82,1

93,6 / 84,3

Number of efficiency stars (Directive 92/42/EEC)

stars

**

***

Rating Sedbuk

class

D

D

HEATING CIRCUIT

 

 

 

Expansion vessel pre-charged pressure

bar

1

1

Maximum central heating circuit pressure

bar

3

3

Expansion vessel capacity

l

8

8

Central heating temperature: max/min

°C

85 / 35

85 / 35

DOMESTIC HOT WATER CIRCUIT

 

 

 

Domestic hot water temperature max/min

°C

60 / 36

60 / 36

D.H.W. flow rate ∆T=25°C

l/min

13,6

13,6

D.H.W. flow rater ∆T=35°C

l/min

9,7

9,7

Hot water comfort stars (EN13203)

stars

**

**

D.H.W. minimum flow rate

l/min

1,6

1,7

Domestic hot water pressure max/min

bar

0,7

7

ELECTRICAL

 

 

 

Power supply voltage/frequency

V/Hz

230/50

230/50

Power consumption

W

73

106

Electric system grades of protection

IP

X4D

X5D

 

 

 

 

Weight

 

30

30

 

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