The data plate is fixed to the inner casing cover.
4
3. Technical Data
MAXIMUM AVAILABLE PUMP HEAD
BOILER OUTPUT HEAD MIN. FLOW RATE
kW
Metres L/min.
°C
6.0
5.7 7.8
11
15.0
3.8
19.5 11
24.0
2
27 12.7
Table 3
MECHANICAL SPECIFICATIONS
CENTRAL HEATING FLOW - COMPRESSION 22mm
RETURN - COMPRESSION 22mm
COLD WATER INLET - COMPRESSION 15mm
CYLINDER FLOW - COMPRESSION 22mm
GAS INLET
Rp
3
⁄
4
RELIEF VALVE DISCHARGE - COMPRESSION 15mm
CASING HEIGHT 850mm
CASING WIDTH 450mm
CASING DEPTH 365mm
WEIGHT - LIFT 15SBi 35kg 24SBi 37kg
WEIGHT - PACKAGED 15SBi 42kg 24SBi 44kg
Table 4
NOMINAL BOILER RATINGS (10 Minutes After Lighting)
BOILER ADJUSTED FOR G20 (Natural Gas)
OUTPUT INPUT (Net)
GAS RATE
kW
kW
m bar.
m
3
/h
15
17.5
4.5
1.85
19.5
22.1
8
2.34
24
27
12.5
2.86
BOILER ADJUSTED FOR G31 (Propane)
15
17.5
13.5
0.72
19.5
22.1
22.5
0.9
24
27
35.5
1.1
Table 1.
24SBi
FLUE DETAILS
HORIZONTAL FLUE
mm
WALL HOLE DIAMETER EXTERNAL FIX
110
INTERNAL FIX
150
STANDARD FLUE MINIMUM LENGTH
100
MAXIMUM LENGTH 725
EXTENDED FLUE MAXIMUM LENGTH 4000
FLUE ASSEMBLY DIAMETER 100
Table 2.
FLOW/RETURN
DIFFERENTIAL
BURNER
PRESSURE
NOMINAL BOILER RATINGS (10 Minutes After Lighting)
BOILER ADJUSTED FOR G20 (Natural Gas)
OUTPUT INPUT (Net)
GAS RATE
kW
kW
m bar.
m
3
/h
6
6.93
1.6
0.73
10.8
12
6.4
1.27
15
16.65
12
1.76
BOILER ADJUSTED FOR G31 (Propane)
6
6.93
4.3
0.28
10.8
12
13.9
0.49
15
16.65
28.6
0.68
Table 1.
15SBi
BURNER
PRESSURE
Natural Gas: Net Input = Gross Input x 0.901
LPG (Propane): Net Input = Gross Input x 0.922
