Technical data

5
Alpha InTec S - Technical Data
2.3 PHYSICAL DATA
Boiler flow connections mm
Boiler return connections mm
Relief valve connection mm
Gas connection diameter mm
Boiler dimensions Height mm
Width mm
Depth mm
Clearances for servicing Bottom mm
Bottom (with jig) mm
Top (horizontal flue) mm
Top (vertical flue) mm
Sides mm
Front mm
Recommended hole size for flue pipe mm
Boiler dry lift weight kg
Boiler operating weight (full of water) approx. kg
Max. total flue length Horizontal m
Max. total flue length Vertical m
Flue system diameter mm
Factory fitted Filling loop
Factory fitted Seasonality valve
GasSaver compatible
Solar compatible
22
22
15
15
720
440
300
150
250
235
150
5
450
110
36
38
12
14
60/100
No
No
Yes
Yes
22
22
15
22
720
440
300
150
250
235
150
5
450
110
39
41
12
14
60/100
No
No
Yes
Yes
22
22
15
15
720
440
300
150
250
235
150
5
450
110
35
37
12
14
60/100
No
No
Yes
Yes
InTec 12S InTec 18S InTec 28S
13.6
12.3
13
12.0
2.0
1.9
37
82
2.8
0.27
6.95
10.8
10.4
0.003
InTec 12S InTec 18S InTec 28S
20.6
18.6
20
18.3
3.2
2.8
37
82
3.8
0.19
5.27
10.5
9.7
0.003
31.5
28.4
30.7
27.6
7.2
4.3
37
82
5.8
0.24
2.51
10.5
9.7
0.003
Heat input gross - CH kW
Heat input net - CH kW
Heat output condensing (50/30°C) - CH kW
Heat output non condensing (80/60°C) CH kW
Heat output min. - CH kW
Gas rate at max. output l/h
Gas supply pressure mbar
Max. CH temperature °C
Gas burner injector diameter mm
Differential burner pressure - min. mbar
Differential burner pressure - CH mbar
Factory set max. CO
2
(± 0.5%)
CO
2
maximum - CH output %
CO
2
minimum output %
Maximum CO/CO
2
Ratio
2.2 TECHNICAL PERFORMANCE DATA - PROPANE GAS (Cat I3P 3P - G31 - 37 mbar)