Technical data

4.0 Technical Data
7
Flue Terminal Diameter 80mm
Dimensions Projection 80mm
Outercase Dimensions
Casing Height - 780mm
Overall Height Inc Flue
Elbow - 980mm
Casing Width - 450mm
Casing Depth - 345mm
Clearances
Both Sides 5 mm Min
Above Casing 200 mm Min
Below Casing 200 mm Min
Front 450 mm Min
(For Servicing)
Front 5 mm Min (In Operation)
Weights kg
Packaged Boiler Carton 47.5
Packaged Flue Kit 2.5
Installation Lift Weight 39.5
Central Heating Primary Circuit
Pressures
bar
Safety Discharge 3
Max Operating 2.5
Min Operating 0.5
Recommend Operating 1-2
DHW Circuit bar
Pressures
Max Operating 8
Min Operating 0.2
Min Operating Pressure
at 9.8 l/min 0.9
Flow Rates l/min
DHW Flow Rate
@ 30
o
CRise 13.7
DHW Flow Rate
@ 35
o
CRise 9.8
Min Working
DHW Flow Rate 2.5
Pump
Available Head See graph below
Expansion Vessel - (For Central Heating
only. Integral with appliance)
bar
Min Pre-charge Pressure 0.5
litre
Max Capacity of
CH System 125
Primary Water Content
of Boiler (unpressurised) 1.0
Connections copper tails
Gas Supply - 22mm
Central Heating Flow - 22mm
Central Heating Return - 22mm
Cold Water Mains Inlet - 15mm
DHW Flow - 15mm
Pressure Relief Discharge - 15mm
Temperatures
C.H. Flow Temp
(adjustable)
35°C to 85°C max (± 5°C)
D.H.W. Flow Temp (adjustable)
35°C to 65°C max (± 5°C)
dependent upon flow rate
Heat Input C/H & DHW (Gross)
kW 26.3 Max
Btu/h 89,739 Max
Heat Output Max Min
kW 24.0 9.3
Btu/h 81,891 31,730
Electrical Supply 230V~ 50H
z
(Appliance must be connected to an
earthed supply)
Power Consumption 170W
External Fuse Rating 3A
Internal Fuse Rating
Fuse 2A Fast Blow to BS 4265
Appliance Category CAT II
2H 3+
Max Gas Rate (Natural Gas)
(After 10 Mins)
m
3
/h 2.78
ft
3
/h 98.12
Inlet Pressure (Natural Gas)
mbar 20
in wg 8
Burner Injector (Natural Gas)
15 x 1.18mm Diameter
Burner Pressure (Natural Gas)
Max Rate Min Rate
mbar 10.6 ± 0.5 1.9 ± 0.2
in wg 4.24 ± 0.2 0.76 ± 0.2
0
200 400 600 800 1000 1200
0.5
1
1.5
2
2.5
3
3.5
4
Metre wg
l/h
Pump - Available Head
0
Appliance Type C
12
C
32
C
52
NO
x
Class 3
This 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 0051.
SEDBUK Declaration For Combi 80 Maxflue
The seasonal efficiency (SEDBUK) is 78.5 %
Electrical Protection
IPX5D
4.1 Combi 80 Maxflue
LPG Gases Propane - G31 and
Butane - G30
Burner Injector 15 x 0.69
Burner Pressure Max Rate Min Rate
Propane mbar 35.8 6.2
in wg 14.3 2.5
Butane mbar 28.0 4.7
in wg 11.2 1.9
Inlet Pressures Propane Butane
mbar 37 30
in wg 14.8 12