10
© Baxi Heating UK Ltd 2013
This value is used in the UK Government’s Standard Assessment Procedure
(SAP 2005) for energy rating of dwellings. The test data from which it has
been calculated have been certified by 0087.
SEDBUK (SAP) Declaration
The seasonal efficiency (SEDBUK) for all models is:-
91.2% Band A
4.0 Technical Data
4.1
Megaflo System 15, 18, 24, 28 & 32 HE
A
Flue Terminal
Diameter
100mm
Dimensions
Projection
125mm
Outercase Dimensions
Casing Height
- 780mm
Overall Height Inc Flue Elbow
- 965mm
Casing Width
- 450mm
Casing Depth
- 345mm
Central Heating Primary Circuit
Pressures
bar
Safety Discharge
3
Max Operating
2.5
Min Operating
0.5
Recommended Operating Range
1-2
Pump
Available Head
See graph below
Expansion Vessel
-
(Integral with appliance)
bar
Min Pre-charge Pressure
0.5
litre
Max Capacity of
CH System
125
Primary Water Content
of Boiler (unpressurised)
2.5
Connections
copper tails
Gas Supply
-
22mm
Central Heating Flow
-
22mm
Central Heating Return
-
22mm
Pressure Relief Discharge
-
15mm
Temperatures
Flow Temp
(adjustable)
25°C to 80°C
max
(± 5°C)
NOx Class
5
0
200
400
600
800
1000
1200
0.5
1
1.5
2
2.5
3
3.5
4
Metre (wg)
Flow Rate (l/h)
Pump - Available Head
0
5
5.5
4.5
Clearances
Above Casing
200 mm Min
Below Casing
150 mm Min*
Front
450 mm Min
(For Servicing)
Front
5 mm Min
(In Operation)
L.H. Side
5 mm Min
R.H. Side
5 mm Min
(In Operation)
*This is the MINIMUM recommended dimension.
A greater clearance will aid installation and maintenance.
Heat Input (Net)
Max
Min
15 model
kW
15.4
4
18 model
kW
18.5
4.3
24 model
kW
24.7
7
28 model
kW
28.9
9.7
32 model
kW
32.8
9.7
Heat Output (Non-Condensing)
Max
Min
15 model
kW
15
3.9
18 model
kW
18
4.2
24 model
kW
24
6.8
28 model
kW
28
9.4
32 model
kW
32
9.4
Electrical Supply
230V~ 50Hz
(Appliance must be connected to an
earthed supply)
Power Consumption
15 model
130W
18 model
140W
24 model
150W
28 & 32 models
160W
Electrical Protection
IPX5D
Internal Fuse Rating
F2L
Appliance Category
CAT I
2H
Inlet Pressure
(Natural Gas - G20)
mbar
20
Injector
(Natural Gas - G20)
15 model
4.5mm
18 model
5.7mm
24 model
7.5mm
28 model
12mm
32 model
12mm
Appliance Type
C
13
C
33
C
53
Heat Output (Condensing)
Max
Min
15 model
kW
16.2
4.2
18 model
kW
19.4
4.5
24 model
kW
25.9
7.4
28 model
kW
30.3
10.2
32 model
kW
34.4
10.2
Max Gas Rate
(Natural Gas - G20)
(After 10 mins)
15 model
m
3
/h
1.69
18 model
m
3
/h
1.95
24 model
m
3
/h
2.61
28 model
m
3
/h
3.1
32 model
m
3
/h
3.48
Condensate Drain
To accept 21.5mm (
3
/
4
in) plastic waste pipe
Heat Input (Gross)
Max
Min
15 model
kW
17.1
4.4
18 model
kW
20.5
4.8
24 model
kW
27.4
7.8
28 model
kW
32.1
10.8
32 model
kW
36.4
10.8
External Fuse Rating
3A
Weights
15 & 18
24
Packaged Boiler Carton
43.6kg
44.2kg
Installation Lift Weight
38.6kg
39.2kg
28 & 32
Packaged Boiler Carton
46kg
Installation Lift Weight
41kg
NOTE:
All data in this section are nominal values
and subject to normal production tolerances.