Technical Data - Baxi Platinum Combi 24 HE Installation And Servicing Instructions

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 3 /h 2.61
28 model m 3 /h 3.1
33 model m 3 /h 3.6
40 model m 3 /h 4.36
SEDBUK Declaration
The efficiency for all models is 91.1%
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 0087.
10
© Baxi Heating UK Ltd 2009
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
Central Heating Return
12.1
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
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
3 / in) plastic waste pipe @ 35
4
Min Working
Diameter 100mm
DHW Flow Rate
Projection 125mm
Pump
copper tails
Available Head
- 22mm
- 22mm
Expansion Vessel
- 22mm
Integral with appliance)
- 15mm
- 15mm
Min Pre-charge Pressure
- 15mm
Max Capacity of
- 780mm
CH System
- 965mm
- 450mm
Primary Water Content
- 345mm
of Boiler (unpressurised)
Temperatures
200 mm Min
C.H. Flow Temp
200 mm Min
450 mm Min
(For Servicing)
5 mm Min
(In Operation)
D.H.W. Flow Temp
5 mm Min
5 mm Min
(In Operation)
(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
o C Rise 11.43 13.3
o C Rise 9.8 11.5
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