| Model |
Units |
Combi 25 Eco |
Combi 30 Eco |
| Boiler only code |
|
5116329 |
5118139 |
| Controls |
|
|
|
| Adjustable CH temperature |
|
Yes |
Yes |
| User adjustable DHW temperature |
|
Yes |
Yes |
| Operating mode selector switch |
|
Yes |
Yes |
| LED operating / fault status display |
|
Yes |
Yes |
| Integral 24 hr electro-mechanical timer |
|
Optional |
Optional |
| Integral 7 day electronic timer |
|
Optional |
Optional |
| Wireless programmable room thermostat |
|
Optional |
Optional |
| Gas |
|
|
|
| Natural gas |
|
Yes |
Yes |
| Inlet supply pressure (Natural gas) |
mbar |
20 |
20 |
| Gas rate |
m3/hr |
2.76 |
3.17 |
| Heat input (maximum) |
kW |
28.92 |
32.54 |
| Heat input (minimum) |
kW |
8.68 |
9.77 |
| Heat output (maximum) condensing |
kW |
26.95 |
30.20 |
| Heat output (minimum) condensing |
kW |
8.37 |
9.42 |
| Heat output (maximum) non-condensing |
kW |
25.94 |
28.63 |
| Heat output (minimum) non-condensing |
kW |
7.61 |
8.56 |
| Domestic hot water flow rate (maximum) @ 35°c rise |
litres/min |
10.2 |
12.3 |
| Domestic hot water flow rate (minimum) |
litres/min |
2 |
2 |
| Seasonal efficiency band |
SEDBUK |
A |
A |
| NOx |
Class |
5 |
5 |
| Electrical |
|
|
|
| Electrical supply |
Volts/Hz |
230 / 50 |
230 / 50 |
| Power consumption |
Watts |
150 |
150 |
| External fuse rating |
Amps |
3 |
3 |
| Ingress protection rating (as supplied) |
|
IPX5D |
IPX5D |
| Pump overrun |
|
Yes |
Yes |
| 24hr pump exercise |
|
Yes |
Yes |
| Integral frost thermostat (boiler protection only) |
|
Yes |
Yes |
| Weight |
|
|
|
| Installation lift weight |
kg |
47.5 |
47.5 |
| Mechanical & Hydraulic |
|
|
|
| DHW system pressure (maximum) |
bar |
8 |
8 |
| DHW operating pressure (minimum) |
bar |
0.15 |
0.15 |
| Safety pressure discharge |
bar |
3 |
3 |
| Integral automatic bypass |
|
Yes |
Yes |
| CH system capacity (maximum) |
litres |
125 |
155 |
| Gas supply pipe size |
mm |
22 |
22 |
| Flow & return pipe size (CH) |
mm |
22 |
22 |
| Flow & return pipe size (DHW) |
mm |
15 |
15 |
| Temporary filling loop |
|
Optional |
Optional |
| Compartment ventilation required |
|
No |
No |
| Pre-plumbing jig |
|
Yes |
Yes |
| Flue systems |
|
|
|
| Standard concentric flue diameter |
mm |
60/100 |
60/100 |
| Standard flue length |
mm |
1000 |
1000 |
| Maximum equivalent length horizontal |
m |
10 |
10 |
| Maximum equivalent length vertical |
m |
10 |
10 |
| Optional twin pipe vertical flue diameter |
mm |
80/80 |
80/80 |
| Maximum equivalent length horizontal |
m |
20 |
20 |
| Maximum equivalent length vertical |
m |
20 |
20 |
