Sime 25 BF - Page 3

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1.3 TECHNICAL FEATURES
25 BF 25 BFT 30 BF 30 BFT
Heat output
Nominal (80-60°C) kW (kcal/h) 24,0 (20.600) 24,0 (20.600) 29,3 (25.200) 29,3 (25.200)
Minimum (80-60°C) kW (kcal/h) 8,6 (7.400) 8,6 (7.400) 10,4 (9.000) 10,4 (9.000)
Nominal (50-30°C) kW (kcal/h) 26,4 (22.700) 26,4 (22.700) 32,0 (27.500) 32,0 (27.500)
Minimum (50-30°C) kW (kcal/h) 9,5 (8.200) 9,5 (8.200) 11,4 (9.800) 11,4 (9.800)
Nominal D.H.W. heat output kW 24,0 24,0 29,3 29,3
Heat input
Nominal/Minimum kW 24,9/9,0 24,9/9,0 30,0/10,8 30,0/10,8
Efficiency (80-60°C)
Nominal/Minimum output % 96,6/95,7 96,6/95,7 97,7/96,7 97,7/96,7
Efficiency (50-30°C)
Nominal/Minimum output % 106,2 /105,3 106,2 /105,3 106,8 /105,8 106,8 /105,8
Water content l 6,0 5,5 6,5 6,0
Adsorbed power consumption W 175 175 175 175
Electrical protection grade IP X4D IP X4D IP X4D IP X4D
Maximum water head bar 3 3 3 3
Maximum temperature °C 85 85 85 85
Expansion vessel
Capacity l 8 8 8 8
Preloading pressure bar 1 1 1 1
C.H. setting range °C 20÷80 20÷80 20÷80 20÷80
D.H.W. setting range °C 35÷60 10÷60
(1)
35÷60 10÷60
(1)
D.H.W. production
D.H.W. flow rate (EN 625) l/min 10,5 18,7
(1) (2)
13,7 20,4
(1) (2)
Continuous D.H.W. flow rate ∆t 30°C l/min 11,5 11,5
(1)
14,1 14,1
(1)
Minimum D.H.W. flow rate l/min 2 – 2 –
Minimum D.H.W. pressure bar 0,5 – 0,5 –
Maximum D.H.W. pressure bar 7 7
(1)
77
(1)
D.H.W. tank capacity l – 100
(1)
– 100
(1)
D.H.W. expansion vessel l – 4
(1)
–4
(1)
Recuperation time between 25 and 55°C min – 8’ 30’’
(1)
– 8’ 30’’
(1)
Smokes temperature
Maximum/ Minimum (80-60°C) °C 65 / 64 65 / 64 70 / 69 70 / 69
Maximum/ Minimum (50-30°C) °C 46 / 43 46 / 43 48 / 45 48 / 45
Smokes flow kg/h 42,4 42,4 49,0 49,0
Category II
2H3P II2H3P II2H3P II2H3P
Type C13-33-43-53 C13-33-43-53 C13-33-43-53 C13-33-43-53
Weight kg 49 49 51 51
Main burner nozzles
Quantity n° 1 1 1 1
G20 ø mm 6,5 6,5 6,0 6,0
G31 ø mm 5,0 5,0 4,3 4,3
Gas consumption
Nominal / Minimum (G20) m
3
st/h 2,63 / 0,95 2,63 / 0,95 3,17 / 1,14 3,17 / 1,14
Nominal / Minimum (G31) kg/h 1,01 / 0,36 1,01 / 0,36 1,22 / 0,44 1,22 / 0,44
Gas supply pressure
G20 mbar 20 20 20 20
G31 (Propan) mbar 37 37 37 37
CO
2 % methane (G20) min/max 9,1 / 9,3 9,1 / 9,3 9,2 / 9,3 9,2 / 9,3
CO
2 % propan (G31) min/max 10,0 / 10,3 10,0 / 10,3 10,1 / 10,3 10,1 / 10,3
CO emissions ppm 35 35 27 27
NOx emissions (Class 5) ppm 30 30 35 35
(1)
When the “BT100” tank unit is connected to the boiler with the kit code 8091110
(2)
Flow calculated with a fixed temperature on the hot-water service potentiometer of 60°C for a maximum period of 10 minutes