Bosch 15SBI Service Manual download pdf (Page 4)

The data plate is fixed to the inner casing cover.

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

⁄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

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

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

1 2 3 4 5 6 7 8 9 ... 36 37

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Bosch 15SBI Service Manual Page 4

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