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2
TECHNICAL DATA
2.1
BOILER TECHNICAL DATA
Table 2-1: Boiler technical data
Water content
Weight (dry)
Maximum heat output (Kerosene)
Minimum fl ow rate (∆T=10°C)
Minimum fl ow rate (∆T=20°C)
Condensate connection
Flue diameter (conventional) *
Waterside resistance ∆T=10°C
Waterside resistance ∆T=20°C
Maximum static head
Minimum circulating head
Boiler thermostat range
Limit (safety) thermostat shut off
temperature
Maximum hearth temperature
Electricity supply
Burner motor power
Absorbed motor power
Starting current
Running current
Oil connection
Conventional fl ue draught
Maximum operating pressure -
sealed/open system
Maximum operating pressure -
pressure relief valve
Boiler type
* 125 mm diameter required for fl exible fl ue liner (Orange system). For rigid fl ue system, e.g. Green system, 100 mm diameter fl ue required. Refer to Section 9
(Flue System and Air Supply) for further details.
2.2
SEALED SYSTEM DATA
Table 2-2: Sealed System Data
Heating system pressure (cold)
Operating pressure of pressure relief valve
Expansion vessel size (pre-charged at 1 bar)
Maximum heating system volume (including boiler)*
Cold water mains connection
Pressure relief valve discharge connection
* Based on vessel charge of 0.3 bar and system cold fi ll pressure of 0.5 bar. These values are the remaining system volume available after deducting the boiler
water content.
** Approximately
Page 6
Utility
Units
15/21
21/26
litre
13
13
gal
2.9
2.9
kg
97
97
lb
214
214
kW
21.0
26.0
Btu/h
71,600
88,700
l/h
1,800
2,200
l/h
900
1,100
mm
mbar
mbar
m
m
°C
°C
°C
Watts
kW
Amps
Amps
mbar
in wg
bar
bar
26/35
15/21
19
13
4.2
2.9
127
123
280
271
35.0
21.0
119,400
71,600
3,000
1,800
1,500
900
22 mm (only connect plastic pipe)
100 mm
28.5
10.0
28
1
50 to 75
110 ± 3
Less than 50
~230 1ph 50Hz 5A fused
90
0.15
4.2
0.85
¼ʺ BSP male (on end of fl exible fuel hose)
Minimum: 0.087 - Maximum: 0.37
Minimum: 0.035 - Maximum: 0.15
2.0
3.0
ON/OFF
Utility System 15/21, 21/26 and 26/35
Maximum 1.0 bar
|
3.0 bar
12 litres (all models)
131 litres (15/21 and 21/26) | 125 litres (26/35) **
15 mm compression (supplied)
15 mm compression (supplied)
Utility System
21/26
26/35
13
19
2.9
4.2
123
138
271
304
26.0
35.0
88,700
119,400
2,200
3,000
1,100
1,500
Minimum 0.5 bar
Section 2: Technical Data
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