Technical Data - Baxi Megaflo System HE A Range Installation & Servicing Instructions Manual

Appliance Type
C
13
Appliance Category
CAT I
Heat Input (Net) Max
15 model kW 15.4
18 model kW 18.5
24 model kW 24.7
28 model kW 28.9
32 model kW 32.8
Heat Input (Gross) Max
15 model kW 17.1
18 model kW 20.5
24 model kW 27.4
28 model kW 32.1
32 model kW 36.4
Heat Output (Non-Condensing)
Max
15 model kW 15
18 model kW 18
24 model kW 24
28 model kW 28
32 model kW 32
Heat Output (Condensing)
Max
15 model kW 16.2
18 model kW 19.4
24 model kW 25.9
28 model kW 30.3
32 model kW 34.4
Max Gas Rate (Natural Gas - G20)
(After 10 mins)
15 model m /h 1.69
3
18 model m /h 1.95
3
24 model m /h 2.61
3
28 model m /h 3.1
3
32 model m /h 3.48
3
Injector (Natural Gas - G20)
15 model 4.5mm
18 model 5.7mm
24 model 7.5mm
28 model 12mm
32 model 12mm
SEDBUK (SAP) Declaration
The seasonal efficiency (SEDBUK) for all models is:-
91.2% Band A
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.
10
© Baxi Heating UK Ltd 2013
C C
Inlet Pressure (Natural Gas - G20)
33 53
mbar
2H
Electrical Supply
Min
(Appliance must be connected to an
4
earthed supply)
4.3
Power Consumption
7
15 model
18 model
9.7
24 model
9.7
28 & 32 models
Min
Electrical Protection
4.4
4.8
External Fuse Rating
7.8
Internal Fuse Rating
10.8
Condensate Drain
10.8
To accept 21.5mm (
Flue Terminal
Min
Dimensions
3.9
Connections
4.2
Gas Supply
Central Heating Flow
6.8
Central Heating Return
9.4
Pressure Relief Discharge
9.4
Outercase Dimensions
Casing Height
Min
Overall Height Inc Flue Elbow
Casing Width
4.2
Casing Depth
4.5
Clearances
7.4
Above Casing
10.2
Below Casing
10.2
Front
Front
L.H. Side
R.H. Side
*This is the MINIMUM recommended dimension.
A greater clearance will aid installation and maintenance.

4.0 Technical Data

4.1 Megaflo System 15, 18, 24, 28 & 32 HE
20
230V~ 50H z
130W
140W
150W
160W
IPX5D
3A
F2L
/ in) plastic waste pipe
3
4
Diameter 100mm
Projection 125mm
copper tails
- 22mm
- 22mm
- 22mm
- 15mm
- 780mm
- 965mm
- 450mm
- 345mm
200 mm Min
150 mm Min*
450 mm Min
(For Servicing)
5 mm Min
(In Operation)
5 mm Min
5 mm Min
(In Operation)
5.5
5
4.5
4
3.5
3
2.5
2
1.5
1
0.5
0
0 200
NO x Class
5
Central Heating Primary Circuit
Pressures
Safety Discharge
Max Operating
Min Operating
Recommended Operating Range
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
Temperatures
Flow Temp
(adjustable)
25°C to 80°C
max
Weights
15 & 18
Packaged Boiler Carton 43.6kg
Installation Lift Weight 38.6kg
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.
Pump - Available Head
400 600 800 1000
Flow Rate (l/h)
A
bar
3
2.5
0.5
1-2
(± 5°C)
24
44.2kg
39.2kg
1200