Supplied By www.heating spares.co Tel. 0161 620 6677
4
Ref. Condition 15 °C, 1013,25 mbar, dry gas
NOTE: L.P.G. data refer to section 10
SECTION 2
TECHNICAL DATA
2.1 Central Heating
12HE
15HE
20HE
25HE
30HE
35HE
Heat input (kW)
12
15
20
25
30
34.6
Maximum heat output (kW) 60/80°C
11.84
14.81
19.68
24.53
29.31
33.67
Minimum heat output (kW) 60/80°C
3.5
3.5
5
6
7
7
Maximum heat output (kW) 30/50°C
12.74
15.90
21.16
26.30
6.84
36.54
Minimum heat output (kW) 30/50°C
3.7
3.71
5.30
6.37
7.41
7.41
Minimum working pressure
0.5 bar
Maximum working pressure
2.7 bar
Minimum flow rate
350 l/h
2.2 Gas Pressures
12HE
15HE
20HE
25HE
30HE
35HE
Inlet pressure (G20)
20.0 mbar
Maximum gas rate (m
3
/hr)
1.27
1.59
2.12
2.64
3.17
3.66
Minimum gas rate (m
3
/hr)
0.37
0.37
0.53
0.63
0.74
0.74
Injector size
4.6mm
4.6mm
4.6mm
6.7mm
7.0mm
7.0mm
2.3 Expansion Vessel
12HE
15HE
20HE
25HE
30HE
35HE
Capacity
6-litres
8-litres
10-litres
Maximum system volume
63-litres
76-litres
91-litres
Pre-charge pressure
1.0 bar
2.4 Dimensions
12HE
15HE
20HE
25HE
30HE
35HE
Height
740mm
780mm
780mm
Width
400mm
400mm
450mm
Depth
340mm
358mm
358mm
Dry weight (kg)
2.5 Clearances
Mynute HE Range
Sides
12mm
Top
150mm from casing or 25mm above flue elbow (whichever is applicable)
Bottom
150mm
Front
600mm
2.6 Connections
Mynute HE Range
Flow & return
22mm
Gas
15mm
Safety valve
15mm
Condense
21mm
2.7 Electrical
12HE
15HE
20HE
25HE
30HE
35HE
Power consumption (Watts)
150
150
150
150
165
165
Supply (V/Hz)
230/50
Internal fuse
3.15A T (for PCB) - 3.15A F (for connections block)
External fuse
3A
2.8 Flue Details (concentric - 60/100)
12HE
15HE
20HE
25HE
30HE
35HE
Maximum horizontal flue length (60/100mm)
7.8m
7.8m
7.8m
7.8m
7.8m
7.8m
Maximum vertical flue length (60/100mm)
8.8m
8.8m
8.8m
8.8m
8.8m
8.8m
2.8A Flue Details (concentric 80/125mm)
12HE
15HE
20HE
25HE
30HE
35HE
Maximum horizontal flue length (80/125mm)
20m
20m
20m
20m
20m
20m
Maximum vertical flue length (80/125mm)
25m
25m
25m
25m
25m
25m
2.8A Flue Details (twin pipes)
12HE
15HE
20HE
25HE
30HE
35HE
Maximum horizontal flue length (80mm/80mm)
40m/40m
40m/40m
40m/40m
40m/40m
40m/40m
40m/40m
Maximum vertical flue length (80mm/80mm)
40m/40m
40m/40m
40m/40m
40m/40m
40m/40m
40m/40m
2.9 Efficiency
12HE
15HE
20HE
25HE
30HE
35HE
SEDBUK (%)
90.7
90.7
90.5
90.4
90.2
90.0
Band ‘A’
Band ‘A’
Band ‘A’
Band ‘A’
Band ‘A’
Band ‘A’
2.10 Emissions
12HE
15HE
20HE
25HE
30HE
35HE
CO
2
@ maximum output (%)
9.0
9.0
9.0
9.0
9.0
9.0
CO
2
@ minimum output (%)
9.0
9.0
9.0
9.0
9.0
9.0
CO/CO
2
ratio @ maximum output
0.001 to 1
0.001 to 1
0.001 to 1
0.0002 to 1
0.0002 to 1
0.0002 to 1
CO/CO
2
ratio @ minimum output
0.0002 to 1
0.0002 to 1
0.0004 to 1
0.0003 to 1
0.0003 to 1
0.0003 to 1
CO @ maximum output (mg/kWh)
107.5
129.0
161.3
204.3
215
268.8
CO @ minimum output (mg/kWh)
21.5
21.5
43.0
32.3
32.3
32.3
NOx @ maximum output mg/kWh)
88.3
88.3
79.4
88.3
88.3
88.3
NOx @ minimum output (mg/kWh)
35.3
35.5
53.0
61.8
70.6
70.6
NOx rating
class 5
class 5
class 5
class 5
class 5
class 5