Appliance Category CAT I
2H
Horizontal
Flue Terminal Diameter 110mm
Dimensions Projection 150mm
Outercase Dimensions
Overall Height Inc Flue Elbow - 750mm
Casing Height - 600mm
Casing Width - 390mm
Casing Depth - 320mm
Weights kg
Packaged Boiler Carton 36.2
Packaged Flue Kit 3.6
Installation Lift Weight 26.0
Connections
Gas Supply -
1
/
2
in BSPT
Central Heating Flow - 22mm
Central Heating Return - 22mm
Condensate Drain - 1 in BSP
Recommended System
Temperature Drop
Condensing 20°C 36°F
Heat Input (Q)(Gross) Max Min
12 model kW 13.34 10.2
Btu/hr 45,518 34,840
15 model kW 16.88 10.2
Btu/hr 57,600 34,840
18 model kW 20.18 10.2
Btu/hr 68,850 34,840
24 model kW 24.50 10.2
Btu/hr 83,600 34,840
30 model kW 33.76 10.2
(see note) Btu/hr 115,200 34,840
Heat Output (P)
(Non Condensing 70° C Mean Water Temp)
Max Min
12 model kW 11.82 9.14
Btu/hr 40,330 31,180
15 model kW 15.24 9.14
Btu/hr 52,000 31,180
18 model kW 17.81 9.14
Btu/hr 60,770 31,180
24 model kW 22.00 9.14
Btu/hr 75,000 31,180
30 model kW 30.18 9.14
Btu/hr 102,980 31,180
Electrical Supply 230V~ 50Hz
(Appliance must be connected to an
earthed supply)
Power Consumption 80W
External Fuse Rating 3A
Internal Fuse Rating (BS 4265)
Fuse 3.15 AT (PCB)
Inlet Pressure at Gas Valve (Natural Gas)
Min 18.1 mbar
Max 22.5 mbar
(see Section 12.1)
Injector (Natural Gas)
6.5mm Diameter
Clearances
(For unventilated compartments see Section 7.2)
Both Sides 5mm Min
Above Casing 200mm Min
Below Casing 50mm Min
Front (For Servicing) 500mm Min
Front (In Operation) 5mm Min
Appliance Type C
13
C
33
C
53
Nox Class 5
Heat Output (P)
(Condensing 40° C Mean Water Temp)
Max Min
12 model kW 12.81
Btu/hr 43,400
15 model kW 16.49 10.1
Btu/hr 56,260 34,520
18 model kW 19.27
Btu/hr 64,898
24 model kW 23.8 10.1
Btu/hr 81,200 34,520
30 model kW 32.61 10.1
Btu/hr 113,280 34,520
Water Content
litres 2.6
pints 4.6
Static Head
max 30 metres (100 ft)
min 1 metre (3.25 ft)
Low Head 0.2m (8 in) min
System Detail
fully pumped open vented & sealed systems
Gas Connection
G
1
/
2
” B.S.P. Thread
Controls
boiler thermostat, safety thermostat,
flow switch, electronic flame sensing,
temperature protection thermostat &
condensate blockage sensor
NOTE: The maximum output of the 30
model is factory set at 22.0kW (75,000
Btu/hr). This can be altered to 30.18kW
(102,980 Btu/hr) - see section 10.8.
For 12 model - The efficiency is 90.5%
For 15 model - The efficiency is 91.3%
For 18 model - The efficiency is 90.4%
For 24 model - The efficiency is 90.9%
For 30 model - The efficiency is 90.9%
This value is used in the UK Government’s Standard
Assessment Procedure (SAP) for energy rating of
dwellings. The test data from which it has been
calculated has been certified by 0087.
SEDBUK Declaration
Electrical Protection IPX2
CO/CO
2
Ratio Up to a maximum
of 0.004
Flow Temperature (adjustable)
55° C to 78° C (± 5° C)
CO
2
Level 9% ± 1%
Max Gas Rate (2H - G20 - 20mbar)
(After 10 Mins)
(12) (15) (18) (24) (30)
Btu/hr 40,950 52,000 61,400 75,000 102,980
m
3
/hr 1.34 1.64 1.94 2.31 2.95
ft
3
/hr 47.3 52.1 68.5 83.3 104.2
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