NOMINAL BOILER RATINGS (10 Minutes After Lighting)
BOILER ADJUSTED FOR G20 (Natural Gas)
OUTPUT INPUT (Net)
BURNER SETTING
GAS RATE
PRESSURE
kW Btu/h kW Btu/h m bar. in. wg. m
3
/h ft
3
/h
9.0 30,700 10.4 35,500 1.8 0.8 1.1 37.28
24.0 81,900 27.0 92,400 13.2 5.3 2.9 100.0
4
Table 1.
FLUE DETAILS
HORIZONTAL FLUE mm inches
WALL HOLE WIDTH 365 14.4
HEIGHT 265 10.5
STANDARD FLUE MINIMUM LENGTH 225 8.9
MAXIMUM LENGTH 420 16.5
EXTENDED FLUE MAXIMUM LENGTH 560 22
Table 2.
PUMP HEAD
BOILER OUTPUT HEAD MIN. FLOW RATE
FLOW/ RETURN
DIFFERENTIAL
kW Btu/h Metres Feet L/min. Gal/Min. °C °F
9.0 30,700 4.8 15.7 11.7 2.57 11°C 20°F
24.0 81,900 2.0 6.6 20.5 4.5 12.5°C 22°F
Table 3
MECHANICAL SPECIFICATIONS
CENTRAL HEATING FLOW - COMPRESSION 22mm
CENTRAL HEATING RETURN - COMPRESSION 22mm
COLD WATER INLET - COMPRESSION 15mm
DOMESTIC HOT WATER FLOW - COMPRESSION 15mm
GAS INLET Rp
3
⁄4
RELIEF VALVE DISCHARGE - COMPRESSION 15mm
CASING HEIGHT 850mm
CASING WIDTH 450mm
CASING DEPTH 360mm
WEIGHT - DRY 45kg
WEIGHT - MAXIMUM INSTALLATION 42kg
WEIGHT - PACKAGED 48kg
Table 4
3. Technical Data
Note: Gross Heat Input x 0.901= Net Heat Input.
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