Technical Data - Potterton Performa 28i Installation And Servicing Instructions

Appliance Type
Appliance Category CAT II
Heat Input C/H & DHW (Gross)
Max
kW 32.6
Btu/h 111,250
Heat Output Max
kW 29.4
Btu/h 100,330
Max Gas Rate (Natural Gas - G20)
(After 10 Mins)
m 3 /h 3.45
ft 3 /h 122
Burner Pressure (Natural Gas - G20)
Max Rate
mbar 12.5 ± 0.5
in wg 5.0 ± 0.2
Inlet Pressure (Natural Gas - G20)
mbar 20
in wg 8
Burner Injector (Natural Gas - G20)
15 x 1.28mm Diameter
Electrical Supply
(Appliance must be connected to an
earthed supply)
Power Consumption
External Fuse Rating
Internal Fuse Rating
Fuse 2A Fast Blow to BS 4265
Electrical Protection
IPX5D
SEDBUK Declaration
The seasonal efficiency (SEDBUK) is 78.2 %
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 have been
certified by 0051.
LPG Propane - G31
Burner Injector 15 x 0.77mm diameter
Burner Pressure
Max Rate
Propane mbar 34.4 ±0.5
in wg 13.8 ±0.2
Inlet Pressures
mbar 37
in wg 14.8
C C
NO x Class
12 32
Flue Terminal
2H 3P
Dimensions
Min
Connections
11.9
Gas Supply
Central Heating Flow
40,610
Central Heating Return
Cold Water Mains Inlet
Min
DHW Flow
10.4
Pressure Relief Discharge -
35,490
Outercase Dimensions
Casing Height
Overall Height Inc Flue
Elbow
Casing Width
Casing Depth
Min Rate
Clearances
1.8 ± 0.2
Both Sides
Above Casing
0.72 ± 0.2
Below Casing
Front
Front
Weights
Packaged Boiler Carton
Packaged Flue Kit
Installation Lift Weight
230V~ 50H z
Central Heating Primary Circuit
Pressures
190W
Safety Discharge
Max Operating
3A
Min Operating
Recommend Operating
Recommended System
Temperature Drop
Min Rate
5.1 ±0.2
2 ±0.2

4.0 Technical Data

4.2 Performa 28i
3
Diameter 100mm
Projection 95mm
copper tails
- 22mm
- 22mm
- 22mm
- 15mm
- 15mm
15mm
- 780mm
- 980mm
- 450mm
- 345mm
5 mm Min
200 mm Min
200 mm Min
450 mm Min
(For Servicing)
5 mm Min
(In Operation)
kg
50.5
3
44
bar
3
2.5
0.5
1-2
11°C 20°F
Pump - Available Head
5
4.5
4
3.5
3
2.5
2
1.5
1
0.5
0
0 200 400
l/h
DHW Circuit bar
Pressures
Max Operating 8
Min Operating 0.2
Min Operating Pressure
at 12.7 l/min 0.96
Flow Rates l/min
DHW Flow Rate
@ 30 o C Rise 13.9
DHW Flow Rate
@ 35 o C Rise 12.0
Min Working
DHW Flow Rate 2.5
Pump - Grundfos UP 15-60
Available Head See graph below
Expansion Vessel - (For Central Heating
only. Integral with appliance)
bar
Min Pre-charge Pressure 0.5
litre
Max Capacity of
CH System 80
Primary Water Content
of Boiler (unpressurised) 3.2
Temperatures
C.H. Flow Temp
(adjustable)
35°C to 85°C
D.H.W. Flow Temp
35°C to 65°C
dependent upon flow rate
50°C Pre-heat OFF
65°C Pre-heat ON ± 5°C
dependent upon flow rate
600 800 1000 1200
(± 5°C)
max
(± 5°C)
max
9