4
Ideal Logic Code Combi -
Installation and Servicing
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 ft
3
/h
- divide the gross heat input (Btu/h)
by the gross C.V. of the gas (Btu/ft
3
)
c.
For m
3
/h
- multiply l/s by 36
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.
Ideal Logic Code Combi
26
33
38
Gas supply
2H - G20 - 20mbar
Gas Supply Connection
15mm copper compression
Injector Size
(mm)
4.15
4.65
4.9
Inlet Connection
DHW
15mm copper compression
Outlet Connection
DHW
15mm copper compression
Flow Connection
Central Heating
22mm copper compression
Return Connection
Central Heating
22mm copper compression
Flue Terminal Diameter
mm (in)
100 (4)
Average Flue Temp-Mass Flow Rate
(DHW)
30ºC 11g/s
32ºC 13g/s
35ºC 15g/s
Average Flue Temp-Mass Flow Rate
(CH)
63ºC 11g/s
68ºC 13g/s
73ºC 13g/s
Maximum Working Pressure (Sealed Systems)
bar (lb/in
2
)
2.5 (36.3)
Maximum Domestic Hot Water Inlet Pressure
bar (lb/in
2
)
10.0 (145)
Minimum Domestic Hot Water Inlet Pressure*
bar (lb/in
2
)
1.0 (14.5)
1.3 (18.9)
1.6 (23.2)
Electrical Supply
230 V ~ 50 Hz.
Power Consumption
W
146
152
177
Fuse Rating
External : 3A Internal : T4H HRC L250 V
Water content
CH litre (gal)
1.2 (0.26)
DHW litre (gal)
1.0 (0.22)
Packaged Weight
kg (lb)
41.3 (91.1)
41.4 (91.3)
41.6 (91.7)
Maximum Installation Weight
kg (lb)
35.9 (79.1)
36.0 (79.4)
36.2 (79.8)
Boiler Casing Size
Height mm (in)
830 (32.7)
Width mm (in)
395 (15.5)
Depth mm (in)
278 (11)
*Required for maximum flow rate. Boiler operates down to 2 l/min DHW delivery
** In areas of low water pressure the DHW restrictor can be removed
Maximum DHW Input :
26
33
38
Nett CV kW
24.3
30.4
35.4
(Btu/h)
(82,900)
(103,600)
(120,900)
Gross CV kW
27.0
33.7
39.3
(Btu/h)
(92,000)
(115,000)
(134,200)
Gas Consumption l/s
0.698
0.871
1.016
(ft
3
/h)
(89)
(111)
(129)
Maximum
kW
26.1
32.7
38.2
DHW Output
(Btu/h)
89,100
111,600
130,300
DHW Flow Rate
l/min
10.7
13.4
15.7
at 35°C temp. rise
(gpm)
2.4
2.9
3.5
DHW Specific Rate
l/min
12.5
15.6
18.3
(gpm)
2.7
3.4
4.0
Table 2 - performance Data - Central heating
Table 3 - performance Data - Domestic hot Water
Boiler Input:
Max.
Min.
26
33
38
Boiler Input ‘Q’
Nett CV kW
24.3
4.9
6.1
7.1
(Btu/h)
(82,900) (16,600)
(20,700) (24,200)
Gross CV kW
27.0
5.4
6.7
7.9
(Btu/h)
(92,000) (18,400)
(23,000)
(26,900)
Gas Consumption
l/s
0.698
0.139
0.173
0.204
(ft
3
/h)
(89)
(17.8)
(22)
(25.9)
Boiler Output:
Non Condensing
kW
24.2
4.8
6.1
7.1
70ºC Mean Water Temp.
(Btu/h)
(82,600) (16,500)
(20,700) (24,100)
Condensing
kW
25.6
5.1
6.4
7.5
40ºC Mean Water Temp.
(Btu/h)
(87,400)
(17,500)
(21,800)
(25,500)
Seasonal efficiency*
SEDBUK 2005
91%
91.1%
91%
SEDBUK 2009
89%
89%
88.9%
NOx Classification
CLASS 5
206279-1.indd 4
06/01/2011 09:09:32
Summary of Contents for LOGIC Code Combi 26
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