Baxi Potterton 47-393-41, 47-393-40, 47-393-39, 47-393-42 manual Technical Data, Titanium 24, 28, 33

4.0Technical Data

4.1Titanium 24, 28, 33 & 40

Appliance Type					C13	C33	C53
Appliance Category						CAT I 2H
Heat Input CH (Net)						Max	Min
24 model				kW		20.5	7
28 model				kW		24.7	9
33 model				kW		28.9	9.7
40 model				kW		32.8	9.9
Heat Input CH (Gross)						Max	Min
24 model			kW			22.7	7.8
28 model			kW			27.4	10
33 model			kW			32.1	10.8
40 model			kW			36.4	11
Heat Output CH (Non-Condensing)
						Max	Min
24 model				kW		20	6.8
28 model				kW		24	8.7
33 model				kW		28	9.4
40 model				kW		32	9.6
Heat Output CH (Condensing)
						Max	Min
24 model				kW		21	7.4
28 model				kW		25.9	9.5
33 model				kW		30.3	10.2
40 model				kW		34.4	12.1
	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		m3/h		2.61
		28 model		m3/h		3.1
		33 model		m3/h		3.6
		40 model		m3/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.

NOTE: All data in this section are nominal values and subject to normal production tolerances.

Inlet Pressure (Natural Gas - G20)

mbar 20

Injector (Natural Gas - G20)

7.5mm (24 & 28) 12mm (33 & 40)

Electrical Supply230V~ 50Hz

(Appliance must be connected to an earthed supply)

Power Consumption

155W (24, 28) 160W (33 & 40)

Electrical Protection

IPX0D (with timer)

IPX5D (without timer)

External Fuse Rating	3A
Internal Fuse Rating	F2L

Condensate Drain

To accept 21.5mm (3/4 in) plastic waste pipe

Flue Terminal	Diameter		100mm
Dimensions	Projection		125mm
Connections		copper tails
Gas Supply		-	22mm
Central Heating Flow		-	22mm
Central Heating Return		-	22mm
Cold Water Mains Inlet		-	15mm
DHW Flow		-	15mm
Pressure Relief Discharge		-	15mm
Outercase Dimensions
Casing Height			- 780mm
Overall Height Inc Flue Elbow			- 965mm
Casing Width			- 450mm
Casing Depth			- 345mm
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 MINIMUM recommended dimension. Greater clearance will aid installation and maintenance.

Weights
	(24 model)
Packaged Boiler Carton	48.6 kg
Installation Lift Weight	43.6 kg
	(28 model)
Packaged Boiler Carton	49.2 kg
Installation Lift Weight	44.2 kg
	(33 & 40 model)
Packaged Boiler Carton	51kg
Installation Lift Weight	46kg

Metre (wg)

NOx Class		5
Central Heating Primary Circuit
Pressures
			bar
Safety Discharge			3
Max Operating			2.5
Min Operating			0.5
Recommended Operating Range			1-2
DHW Circuit		bar
Pressures
Max Operating		8
Min Operating		0.15
Flow Rates	(24)	(28)	(33)	(40)
	l/min	l/min	l/min	l/min
DHW Flow Rate
@ 30o C Rise	11.43	13.3	15.7	19.1
DHW Flow Rate
@ 35o C Rise	9.8	11.5	13.5	16.4
Min Working
DHW Flow Rate	2	2	2	2

IMPORTANT: Where Low Flow Taps or Fittings are intended to be used in the DHW system connected it is strongly recommended that the DHW flow rate DOES NOT fall below 2.5l/min. This will ensure reliable operation of the DHW function.

Pump
Available Head	See graph below
Expansion Vessel	- (For Central Heating only.
Integral with appliance)
		bar
Min Pre-charge Pressure		0.5
		(24 & 28)	(33 & 40)
		litre	litre
Max Capacity of
CH System		125	155
Primary Water Content
of Boiler (unpressurised)		2.5	2.8

Temperatures

C.H. Flow Temp (adjustable)

25°C to 80°C max (± 5°C)

D.H.W. Flow Temp (adjustable)

35°C to 60°C max (± 5°C) 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

0 200 400 600 800 1000 1200

Flow Rate (l/h)

10© Baxi Heating UK Ltd 2012