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Appliance Type
C
12
Appliance Category
CAT II
Heat Input (gross)
Max
C/H & DHW
kW
31.1
Btu/h
106,130
Heat Output
Max
C/H & DHW
kW
28.0
Btu/h
95,555
Gas Rate
(Natural Gas)
Max
(After 10 Mins) m
/h
3.29
3
ft
3
/h
116
Burner Pressure (Natural Gas)
Room sealed panel fitted
Max
mbar
11.8 ± 0.5
in wg
4.7 ± 0.2
Inlet Pressure (Natural Gas)
mbar
20
in wg
8
Burner Injector (Natural Gas)
18 x 1.18mm Diameter
NO x Class
3
Electrical Supply
230V~ 50H z
Power Consumption
190W
External Fuse Rating
3A
Internal Fuse Rating
F2A
External Controls
230V switching
Electrical Protection
IPx4D
(Appliance must be connected to an
earthed supply)
Flue Terminal
Diameter
Dimensions
Projection
Connections
Gas Supply
-
Central Heating Flow
-
Central Heating Return
-
Cold Water Mains Inlet
-
DHW Flow
-
Pressure Relief Discharge -
Outercase Dimensions
Casing Height
-
Casing Width
-
Casing Depth
-
Clearances
LH Side
5mm Min
RH Side
5mm Min
Above Casing
500mm Min
Front
500mm Min
Front
5mm Min
(In Operation)
Weights
kg
Packaged Weight (gross)
95
Installation Lift Weight
83
Total Operational Weight
140
Central Heating Primary Circuit
C
32
Pressures
2H 3+
CH Expansion Vessel
Nominal Pre-charge
Min
Safety Discharge
11.9
Max Operating
40610
Min Operating
Recommend Operating
Min
10.4
Max Capacity of
CH System
35,492
Primary Water Content
Min
of Boiler
1.26
Pump
44
Available Head
Built In Bypass
Min
Min Circulation Rate
1.8 ± 0.2
(CH Primary Circuit)
0.72 ± 0.2
e.g. TRVs all closed
Water Temperature
C.H. Flow Temp
SEDBUK Declaration For
Maxflow Combi FS
The seasonal efficiency (SEDBUK)
This value is used in the UK Government's
100mm
Standard Assessment Procedure (SAP) for
93mm
energy rating of dwellings. The test data from
copper tails
which it has been calculated have been
22mm
certified by 0051.
22mm
22mm
15mm
15mm
15mm
850mm
600mm
630mm
(For Servicing)
l/h
bar
0.8
3
2.5
0.5
1-2
125 litres
3.2 litres
See graph below
l/h
215
(adjustable)
30° C to 82°C
(± 5°C)
max
is 78.6 %
Pump - Available Head
6
5
4
3
2
1
0
0
200
400
4.0 Technical Data
DHW Circuit
Time To Raise Water Storage 50°C
9 minutes
Reheat Time
70% of storage
8 minutes
Pressures
Max Operating
Min Operating
Min Operating Pressure
at 12 l/min
Flow Rates
DHW Flow Rate
Continuous@ 30
C Rise
o
DHW Flow Rate
Continuous @ 35
o
C Rise
Storage Flow Rate
@ 30
o
C Rise
Min Working
DHW Flow Rate
Max. Flow Rate
Unvented DHW Expansion Vessel
See Sections 6.8 & 8.6 for information
DHW Store Temp./Pressure Relief Valve
Maximum Pressure
Maximum Temperature
DHW Inlet Pressure Relief Valve
Maximum Pressure
Water Temperature
D.H.W. Flow Temp
(adjustable)
5° C to 65°C
Water Storage Volume
LPG Gases / Propane and Butane
Burner Injector 18 x 0.69mm diameter
Burner Pressure
Max Rate
Propane
mbar
in wg
Butane
mbar
in wg
Inlet Pressures
Butane
mbar
in wg
11.2
600
800
1000
bar
3.5
0.1
1.6
l/min
l/30min
14
11.4
450
1
18 l/min.
7 bar
90° C
6 bar
(± 5°C)
max
54 litres
Min Rate
35.5
7.6
14.2
3.0
28.2
4.0
11.3
1.6
Propane
28
37
14.8
1200
7
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