Technical Data - Baxi Platinum Combi 24 HE A Installation & Servicing Instructions Manual

Appliance Type
C C
13
Appliance Category CAT I
Heat Input CH (Net)
Max
24 model kW 20.5
28 model kW 24.7
33 model kW 28.9
40 model kW 32.8
Heat Input CH (Gross) Max
24 model kW 22.7
28 model kW 27.4
33 model kW 32.1
40 model kW 36.4
Heat Output CH (Non-Condensing)
Max
24 model kW 20
28 model kW 24
33 model kW 28
40 model kW 32
Heat Output CH (Condensing)
Max
24 model kW 21
28 model kW 25.9
33 model kW 30.3
40 model kW 34.4
Heat Input DHW (Net) Max
24 model kW 24.7
28 model kW 28.9
33 model kW 34
40 model kW 41.2
Heat Input DHW (Gross) Max
24 model kW 27.4
28 model kW 32.1
33 model kW 37.7
40 model kW 45.7
Heat Output DHW Max
24 model kW 24
28 model kW 28
33 model kW 33
40 model kW 40
Max Gas Rate (Natural Gas - G20)
(After 10 mins)
24 model m /h 2.61
3
28 model m /h 3.1
3
33 model m /h 3.6
3
40 model m /h 4.36
3
SEDBUK (2005) Declaration
SAP 2005 Seasonal Efficiency for all models
is 91.1%
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 has been certified by 0087.
NOTE: All data in this section are nominal values
and subject to normal production tolerances.
10
© Baxi Heating UK Ltd 2014
C
Inlet Pressure (Natural Gas - G20)
33 53
mbar
2H
Injector (Natural Gas - G20)
Min
7.5mm (24 & 28) 12mm (33 & 40)
7
9 Electrical Supply
9.7 (Appliance must be connected to an
earthed supply)
9.9
Min
Power Consumption
7.8
155W (24, 28) 160W(33 & 40)
10
Electrical Protection
10.8
11
External Fuse Rating
Min
6.8 Internal Fuse Rating
8.7
Condensate Drain
9.4
To accept 21.5mm (
9.6
Flue Terminal
Dimensions
Min
7.4
Connections
9.5
Gas Supply
10.2
Central Heating Flow
12.1 Central Heating Return
Cold Water Mains Inlet
DHW Flow
Pressure Relief Discharge
Outercase Dimensions
Casing Height
Overall Height Inc Flue Elbow
Casing Width
Casing Depth
Clearances
Above Casing
Below Casing
Front
Front
L.H. Side
R.H. Side
This is the MINIMUM recommended dimension. A greater
clearance will aid installation and maintenance.
Weights
Packaged Boiler Carton
Installation Lift Weight
Packaged Boiler Carton
Installation Lift Weight
Packaged Boiler Carton
Installation Lift Weight

4.0 Technical Data

4.1 Platinum Combi 24, 28, 33 & 40 HE
NO x Class
20
Central Heating Primary Circuit
Pressures
Safety Discharge
230V~ 50H z
Max Operating
Min Operating
Recommended Operating Range
DHW Circuit
Pressures
Max Operating
Min Operating
IPX0D (with timer)
IPX5D (without timer)
Flow Rates
3A
DHW Flow Rate
F2L
@ 30
DHW Flow Rate
/ in) plastic waste pipe
3 @ 35
4
Min Working
Diameter 100mm
DHW Flow Rate
Projection 125mm
IMPORTANT: Where Low Flow Taps or Fittings are
copper tails
intended to be used in the DHW system connected it is
- 22mm strongly recommended that the DHW flow rate DOES
NOT fall below 2.5l/min. This will ensure reliable
- 22mm
operation of the DHW function.
- 22mm
- 15mm
Pump
- 15mm
Available Head
- 15mm
Expansion Vessel
Integral with appliance)
- 780mm
- 965mm
Min Pre-charge Pressure
- 450mm
- 345mm
Max Capacity of
CH System
200 mm Min
150 mm Min*
Primary Water Content
450 mm Min
(For Servicing)
of Boiler (unpressurised)
5 mm Min
(In Operation)
5 mm Min
Temperatures
5 mm Min
(In Operation)
C.H. Flow Temp
D.H.W. Flow Temp
(24 model)
48.6 kg
43.6 kg
(28 model)
49.2 kg
44.2 kg
(33 & 40 model)
50kg
45kg
5
bar
8
0.15
(24) (28)
l/min l/min l/min
C Rise 11.43 13.3
o
C Rise 9.8 11.5
o
2 2
See graph below
- (For Central Heating only.
bar
0.5
(24 & 28)
litre
125
2.5
(adjustable)
25°C to 80°C
max
(adjustable)
35°C to 60°C
max
dependent upon flow rate
Pump - Available Head
5.5
5
4.5
4
3.5
3
2.5
2
1.5
1
0.5
0
0 200 400 600
Flow Rate (l/h)
A
bar
3
2.5
0.5
1-2
(33) (40)
l/min
15.7 19.1
13.5 16.4
2 2
(33 & 40)
litre
155
2.8
(± 5°C)
(± 5°C)
800 1000 1200