4
3. Technical Data
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 11.42 38,900 1.5 0.6 1.19 41.98
25.0 85,300 28.52 97,300 8.3 3.3 2.97 104.8
35.17 120,000 39.61 135,100 14.2 5.8 4.12 145.5
BOILER ADJUSTED FOR G31 (Propane)
12.9 44,000 16.5 56,300 6.0 2.4 0.68 24.0
25.0 85,300 29.14 99,400 19.0 7.6 1.23 43.3
35.17 120,000 40.5 138,200 34.7 13.9 1.64 57.9
Table 1.
FLUE DETAILS
HORIZONTAL FLUE TYPE C12 mm inches
WALL HOLE DIAMETER EXTERNAL FIX 125 5.0
INTERNAL FIX 150 6.0
STANDARD FLUE MINIMUM LENGTH 100 4.0
MAXIMUM LENGTH 1000 39.3
EXTENDED FLUE MAXIMUM LENGTH 2000 78.7
FLUE ASSEMBLY DIAMETER 110 4.3
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 4.2 13.6 11.7 2.57 11°C 20°F
25.0 85,300 2.08 6.67 21.57 4.75 16.5°C 30°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 Rc
3
⁄4
RELIEF VALVE DISCHARGE - COMPRESSION 15mm
CASING HEIGHT 900mm
CASING WIDTH 500mm
CASING DEPTH 310mm
WEIGHT - DRY 52kg
WEIGHT - MAXIMUM INSTALLATION 49kg
WEIGHT - PACKAGED 56kg
Table 4
Natural Gas: Net Input = Gross Input x 0.901 LPG (Propane): Net Input = Gross Input x 0.922
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