8
Installation and Servicing
SECTION 1 - GENERAL
12 15 18 24 30
Gas supply
2H - G20 - 20mbar
Gas Supply Connection
15mm copper compression
Injector Size
mm
4.15
4.15
4.15
4.15
4.65
Flow Connection
Central Heating
22mm copper compression
Return Connection
Central Heating
22mm copper compression
Flue Terminal Diameter - Turret
mm
100
Flue Terminal Diameter - Rear Flue Outlet (55/80)
mm
80
Average Flue Temp-Mass Flow Rate
56ºC - 5g/s
56ºC - 6g/s
58ºC - 8g/s
63ºC - 10g/s
69ºC - 13g/s
CO
2
Content (± 0.7)
Max. CH
9.1%
9.3%
9.5%
9.5%
9.3%
Min. CH
8.5%
8.8%
8.9%
8.8%
8.8%
Max. static water head
m (ft.)
30.5 (100)
Min. static water head
m (ft.)
0.45 (1.5)
Max. Working Pressure (Sealed Systems)
bar (lb/in
2
)
2.5 (36.3)
Electrical Supply
230 V ~ 50 Hz.
Power Consumption
W
16
20
24
39
47
Fuse Rating External : 3A Internal : T4H ARC L250 V
Water content
litre (gal)
1.2 (0.26)
Packaged Weight
kg
28.7
Maximum Installation Weight
kg
22.7
Boiler Casing Size
Height
mm
700
Width
mm
395
Depth
mm
278
Table 1 - General Data
Note.
Gas consumption is calculated using a
calorific value of 38.7 MJ/m
3
gross or 34.9 MJ/m
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 Btu/h
- multiply the gross heat input (kW) by
26.8
c.
For ft
3
/h
- divide the gross heat input (Btu/h) by
the gross C.V. of the gas (Btu/ft
3
)
d.
For m
3
/h
- multiply l/s by 3.6
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.
* 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.
12
15
18
24
30
MIN MAX MIN MAX MIN MAX MIN MAX MIN MAX
Boiler Input :
Boiler
Input
‘Q’
Nett
CV kW 4.9 12.1 4.9 15.1 4.9 18.1 4.9 24.3 6.1 30.4
Gross
CV kW 5.4 13.4 5.4 16.6 5.4 20.1 5.4 27.0 6.7 33.7
Gas Consumption
m
3
/h 0.500 1.246 0.500 1.537 0.500 1.872 0.500 2.512 0.623 3.135
Boiler Output :
Non
Condensing
kW 4.8 12.0 4.8 15.0 4.8 18.0 4.8 24.2 6.1 30.3
70
o
C Mean Water temp.
Condensing
kW 5.1 13.0 5.1 15.9 5.1 19.1 5.1 25.6 6.4 31.0
40
o
C Mean Water temp.
Seasonal efficiency* (SEDBUK) 2005
91.1%
91.2%
91.1%
91.2%
91.1%
Seasonal efficiency* (SEDBUK) 2009
89.4%
89.4%
89.7%
89.7%
89.6%
NOx Classification
CLASS 6
Table 2 - Performance Data - Central Heating
Summary of Contents for LOGIC MAX HEAT H 18
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