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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