4.0 Technical Data
10
4.4
System 28e
Flue Terminal
Diameter
100mm
Dimensions
Projection
95mm
Outercase Dimensions
Casing Height
-
780mm
Overall Height Inc Flue
Elbow
-
980mm
Casing Width
-
450mm
Casing Depth
-
345mm
Clearances
Both Sides
5 mm Min
Above Casing
200 mm Min
Below Casing
200 mm Min
Front
450 mm Min
(For Servicing)
Front
5 mm Min
(In Operation)
Weights
kg
Packaged Boiler Carton
47
Packaged Flue Kit
3
Installation Lift Weight
39
Central Heating Primary Circuit
Pressures
bar
Safety Discharge
3
Max Operating
2.5
Min Operating
0.2
Recommend Operating
1-2
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
125
Primary Water Content
of Boiler (unpressurised)
1.1
Connections
copper tails
Gas Supply
-
22mm
Central Heating Flow
-
22mm
Central Heating Return
-
22mm
Pressure Relief Discharge -
15mm
Temperatures
C.H. Flow Temp
(adjustable)
35°C to 85°C
max
(± 5°C)
Heat Input
(Gross)
Max
Min
kW
32.6
11.9
Btu/h
111,250
40,610
Heat Output
Max
Min
kW
29.4
10.4
Btu/h
100,330
35,490
Electrical Supply
230V~ 50Hz
(Appliance must be connected to an
earthed supply)
Power Consumption
190W
External Fuse Rating
3A Maximum
Internal Fuse Rating
Fuse 2A Fast Blow to BS 4265
Appliance Category
CAT II
2H 3P
Max Gas Rate
(Natural Gas - G20)
(After 10 Mins)
m
3
/h
3.45
ft
3
/h
122
Inlet Pressure
(Natural Gas - G20)
mbar
20
in wg
8
Burner Injector
(Natural Gas - G20)
15 x 1.28mm Diameter
Burner Pressure
(Natural Gas - G20)
Max Rate Min Rate
mbar
12.5 ± 0.5
1.8 ± 0.5
in wg
5.0 ± 0.2
0.7 ± 0.2
Appliance Type
C
12
C
32
NOx Class
3
Electrical Protection
IPX5D
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.
SEDBUK Declaration For System Boiler 28e
The seasonal efficiency (SEDBUK) is 78.2 %
LPG Gases Propane - G31
Burner Injector
15 x 0.77mm diameter
Burner Pressure
Propane
mbar
in wg
Inlet Pressures
mbar
in wg
Max Rate
34.4 ± 0.5
13.8 ± 0.2
Min Rate
5.1 ± 0.5
2.0 ± 0.2
37
14.8
0
200
400
600
800
1000
1200
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
5.5
6
Metre wg
l/h
Pump - Available Head
0
Summary of Contents for Performa System 12e
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