4
Installation and Servicing
GENERAL
Ideal Logic Combi
C26/35
C31/35
Gas supply
2H - G20 - 20mbar
Gas Supply Connection
3/4”
Injector Size
(mm)
4.9
4.9
Inlet Connection
Domestic Hot Water
1/2”
Outlet Connection
Domestic Hot Water
1/2”
Flow Connection
Central Heating
3/4”
Return Connection
Central Heating
3/4”
Flue Terminal Diameter
mm (in)
100 (4)
Average Flue Temp-Mass Flow Rate
(DHW)
73
o
C - 15g/s
73
o
C - 15g/s
Maximum Working Pressure (Sealed Systems)
bar
2.5
Maximum Domestic Hot Water Inlet Pressure
bar (kPa)
10.0 (1000)
Minimum Domestic Hot Water Inlet Pressure*
bar (kPa)
1.3 ** (130)
Electrical Supply
230 V ~ 50 Hz.
Power Consumption
W
114
114
Fuse Rating
External : 3A Internal : T4A HRC L250 V
Water content
Central Heating litre
1.2
Domestic Hot Water litre
0.5
Packaged Weight
kg
33.9
33.9
Maximum Installation Weight
kg
30.9
30.9
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
)
Key to symbols
TR
= Turkey (Countries of destination)
PMS
= Maximum operating pressure of water
C
13
C
33
= A room sealed appliance designed for connection via ducts to a
horizontal 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.
*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
26/35
31/35
Boiler Input :
Max.
Min.
Max.
Min.
Boiler Input ‘Q’
Nett CV kW
24.3
7.1
30.4
7.1
(Kcal/hr) (20898)
(6106)
(26144)
(6106)
Gross CV KW
27.0
7.9
33.7
7.9
(Kcal/hr) (23220)
(6794)
(28982)
(6794)
Gas Consumption
l/s
0.698
0.204
0.871
0.204
(m
3
/h)
(2.51)
(0.734)
(3.13)
(0.734)
Boiler Output :
Non Condensing
kW
24.2
7.1
30.3
7.1
70
o
C Mean Water temp.
(Kcal/hr) (20812)
(6106)
(26058)
(6106)
Condensing
kW
25.6
7.5
31.0
7.5
40
o
C Mean Water temp.
(Kcal/hr) (22016)
(6450)
(26660)
(6450)
NOx Classification
CLASS 5
Boiler Input :
26/35
31/35
Boiler Input ‘Q’
Nett CV kW
35.4
35.4
(Kcal/hr) (30444)
(30444)
Gross CV KW
39.3
39.3
(Kcal/hr) (33798)
(33798)
Gas Consumption
l/s
1.016
1.016
(m
3
/h)
(3.66)
(3.66)
Maximum
kW
35.3
35.3
DHW Output
(Kcal/hr) (30358)
(30358)
DHW Flow Rate
l/min
14.5
14.5
at 35
o
C temp rise
(m
3
/h)
(0.87)
(0.87)
DHW Specific Rate
l/min
16.9
16.9
(m
3
/h) (1.014)
(1.014)
Table 2 - Performance Data - Central Heating
Table 3 - Performance Data - Domestic Hot Water
