Ideal Heating LOGIC+ COMBI C35 - Page 6

6
Installation and Servicing
SECTION 1 - GENERAL
Note. Gas consumption is calculated using a
caloric 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
caloric 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
C13 C33 C53 = 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
orices 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 certied by a notied body.
Boiler
35
Min Max
Boiler Input ‘Q’ Net CV kW
Gross CV kW
7.1 24.3
7.9 27.0
Boiler output
(non-condensing) Mean 70°C
kW 7.1 24.2
Boiler output (condensing) Mean 40°C kW 7.5 25.6
Gas Consumption MJ/h 27.16 92.94
Seasonal Efciency* SEDBUK 2005 91.1%
Seasonal Boiler Efciency* SEDBUK 2009 89.6%
NOx Classication CLASS 6
Boiler
35
Maximum DHW Input Net CV kW
Gross CV kW
35.4
39.3
Maximum DHW Output kW 35.3
Maximum Gas Consumption MJ/h 142.2
DHW Flow Rate at 35° temp. rise l/min 14.5
DHW Specic Rate l/min 16.9
Table 2 - Performance Data - Central Heating
Table 3 - Performance Data - Domestic Hot Water