5
Installation and Servicing
SECTION 1 - GENERAL
Table 1 - General Data
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 m
3
/h
- multiply l/s by 3.6
Key to symbols
AU
= Australia
NZ
= New Zealand
(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.
* 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.
Boiler
18
30
Min
Max
Min
Max
Boiler Input ‘Q’
Net CV kW
Gross CV kW
4.9
18.1
6.1
30.4
5.4
20.1
6.7
33.7
Boiler output
(non-condensing) Mean 70°C
kW
4.8
18.0
6.1
30.3
Boiler output (condensing) Mean 40°C kW
5.1
19.1
6.4
31.0
Gas Consumption
MJ/h
18.5
71.43 23.01 119.41
Seasonal Efficiency*
SEDBUK 2005
91.1%
Seasonal Boiler Efficiency*
SEDBUK 2009
89.7%
89.6%
NOx Classification
CLASS 6
Boiler
18
30
Gas Supply
Natural Gas at 1.13kPa
Gas Supply Connection
1/2”
Injector Size
(mm)
4.15
4.65
Flow Connection
Central Heating
3/4”
Return Connection
Central Heating
3/4”
Flue Terminal Diameter
mm
100
Average Flue Temp-Mass Flow Rate
58°C - 8g/s
69°C - 13g/s
CO
2
Content (± 0.7)
Max. CH
9.2%
8.9%
Min. CH
8.6%
8.7%
Maximum Working Pressure (Sealed Systems)
kPa
250
Electrical Supply
230 V ~ 50 Hz.
Power Consumption
W
78
100
Fuse Rating
External: 3A Internal: T4A HRC L250 V
Water Content
litre
1.2
Packaged Weight Internal Boiler
kg
31.5
31.5
Packaged Weight External Boiler
kg
46.8
46.8
Maximum Installation Weight Internal Boiler
kg
26.1
26.1
Maximium Installation Weight External Boiler
kg
43.2
43.2
Boiler Casing Size Internal Height
mm
700
Width
mm
395
Depth
mm
278
Boiler Casing Size External Height
mm
905
Width
mm
425
Depth
mm
450
Table 2 - Performance Data - Central Heating
Summary of Contents for LOGIC+ SYSTEM S18
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