4.0 Technical Data
10
© Baxi Heating UK Ltd 2012
0
10
20
30
40
20
40
60
80
100
120
140
160
180
200
220
Water Flow Rate (litres/min)
Pressure Drop (mbar)
8
17
25
33
42
50
58
66
75
83
91
Pressure Drop (in wg)
Hydraulic Resistance Chart
Appliance Category
CAT I
2H
Horizontal
Flue Terminal
Diameter
110mm
Dimensions
Projection
150mm
Outercase Dimensions
Overall Height
Inc Flue Elbow
-
750mm
Casing Height
-
600mm
Casing Width
-
390mm
Casing Depth
-
285 mm
Weights
kg
Packaged Boiler Carton
36.2
Packaged Flue Kit
3.6
Installation Lift Weight
26.0
Connections
Gas Supply
-
1
/
2
in BSPT
Central Heating Flow
-
22mm
Central Heating Return
-
22mm
Condensate Drain
-
1 in BSP
Recommended System
Temperature Drop
Condensing
20°C
36°F
Heat Input (Q)
(Gross)
Max
Min
12 model
kW
13.34
10.2
15 model
kW
16.88
10.2
18 model
kW
20.18
10.2
24 model
kW
24.50
10.2
30 model
kW
33.76
10.2
(see note)
Heat Output (P)
(Non Condensing 70° C Mean Water Temp)
Max
Min
12 model
kW
11.82
9.14
15 model
kW
15.24
9.14
18 model
kW
17.81
9.14
24 model
kW
22.00
9.14
30 model
kW
30.18
9.14
Electrical Supply
230V~ 50Hz
(Appliance must be connected to an
earthed supply)
Power Consumption
80W
External Fuse Rating
3A
Internal Fuse Rating
(BS 4265)
Fuse
3.15 AT (PCB)
Inlet Pressure at Gas Valve
(Natural Gas)
Min
18.1 mbar
Max
22.5 mbar
(see Section 12.1)
Injector
(Natural Gas)
6.5mm Diameter
Clearances
(For unventilated compartments see Section 7.2)
Both Sides
5mm Min
Above Casing
200mm Min
Below Casing
50mm Min
Front (For Servicing)
500mm Min
Front (In Operation)
5mm Min
Appliance Type
C
13
C
33
C
53
Nox Class
5
Heat Output (P)
(Condensing 40° C Mean Water Temp)
Max
Min
12 model
kW
12.81
15 model
kW
16.49
10.1
18 model
kW
19.27
24 model
kW
23.8
10.1
30 model
kW
32.61
10.1
Water Content
litres
2.6
pints
4.6
Static Head
max
30 metres (100 ft)
min
1 metre (3.25 ft)
Low Head
0.2m (8 in) min
System Detail
fully pumped open vented & sealed systems
Gas Connection
G
1
/
2
” B.S.P. Thread
Controls
boiler thermostat, safety thermostat,
flow switch, electronic flame sensing,
temperature protection thermostat &
condensate blockage sensor
NOTE: The maximum output of the 30
model is factory set at 22.0kW. This can
be altered to 30.18kW - see section 10 .8.
For 12 model - The efficiency is 90.5%
For 15 model - The efficiency is 91.3%
For 18 model - The efficiency is 90.4%
For 24 model - The efficiency is 90.9%
For 30 model - The efficiency is 90.9%
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 has been certified by 0086.
SEDBUK Declaration
Electrical Protection
IPX2
CO/CO
2
Ratio
Up to a maximum
of 0.004
Flow Temperature
(adjustable)
55° C to 78° C (± 5° C)
CO
2
Level
9% ± 1%
Max Gas Rate
(2H - G20 - 20mbar)
(After 10 Mins)
(12)
(15)
(18)
(24)
(30)
m
3
/hr 1.34
1.64
1.94
2.31
2.95
NOTE:
All data in this section are nominal values
and subject to normal production tolerances