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icos - Installation & Servicing
GENERAL
Boiler Size HE 12 Max HE 15 Max HE 18 Max HE 24 Max HE 12 Min HE 15-24 Min
Boiler input 'Q' = Nett CV kW 12.2 15.1 18.7 24.4 9.8 9.1
Btu/h 41 600 51 500 63 800 83 300 33 400 31 000
Gross CV kW 13.5 16.8 20.7 27.1 10.9 10.1
Btu/h 46 000 57 200 70 800 92 500 37 200 34 400
Gas consumption l/s (cu.ft/h) 0.35 (44.2) 0.43 (54.7) 0.53 (68.0) 0.70 (89.7) 0.28 (35.6) 0.26 (33.3)
Boiler output 'P' = 70
o
C Mean water kW 12.0 14.6 18.2 23.4 9.3 8.8
temperature Btu/h 40 900 50 000 62 300 80,000 31 800 30,000
40
o
C Mean water kW 12.7 15.5 19.2 25.1 10.5 9.6
temperature Btu/h 43 300 53 000 65 700 85 700 35 900 32 800
Seasonal efficiency (SEDBUK) * Band A [90.1]% [90.4]% [90.3]% [90.2]%
NOx classification Class 5
Boiler Size HE 12, HE 15, HE 18, HE 24
Gas supply type and connection 2H-G20-20 mbar Rc
1
/2 (
1
/2" BSP Female)
Injector size Stereomatic 5.6mm dia. (HE 12 5.8mm dia).
Flow connection 22mm copper
Return connection 22mm copper
Flue terminal diameter mm (in.) 100 (4)
Maximum static water head m (ft.) 30.5 (100)
Minimum static water head m (ft.) 0.45 (1.5)
Electrical supply 230 V ~ 50 Hz
Boiler power consumption 38W
Fuse rating External: 3A Internal: T3.15A L250 V
Water content litre (gal.) 1.7 (0.37)
Packaged weight kg (lb.) 38 (84)
Maximum installation weight kg (lb.) 31 (68)
Boiler size Height mm (in.) 582 (23)
Width mm (in.) 390 (15)
Depth mm (in.) 278 (11)
* The 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 have been certified by a notified body.
CAUTION.
To avoid the possibility of injury during the installation, servicing or cleaning
of this appliance, care should be taken when handling edges of sheet steel components.
Note.
Gas consumption is calculated using a calorific value of
38.7 MJ/m
3
(1038 Btu/ft
3
) gross or 34.9 MJ/m
3
(935 Btu/ft
3
)
nett. To obtain the gas consumption at a different calorific
value:-
a. For l/s - divide the gross heat input (kW) by the gross
C.V. of the gas (MJ/m
3
)
b. For ft
3
/h - divide the gross heat input (Btu/h) by the
gross C.V. of the gas (Btu/ft
3
)
Key to symbols
GB = United Kingdom IE = Ireland (Countries of destination)
PMS = Maximum operating pressure of water
C
13
C
33
C
53
= A room sealed appliance designed for connection via
ducts to a horizontal or vertical terminal which admits
fresh air to the burner and discharges the products of
combustion to the outside through orifices which, in this
case, are concentric. The fan is up stream of the
combustion chamber.
I
2H
= An appliance designed for use on 2nd Family gas, Group
H only.
Table 2 - Performance Data
Table 1 - Boiler Data