Built to perform
The COMBIflo from Andrews Water Heaters is a range of condensing stainless steel water heaters. With space heating capability, the COMBIflo produces both hot water and heating from a single heat generator and storage vessel enclosed in one cabinet.
Watch the COMBIflo 360 immersive view, produces both hot water and heating from a single heat generator and storage vessel enclosed in one cabinet.
| Features | Benefits |
|---|---|
| Pre-packaged hot water and heating in one cabinet | Quick and easy to install, saving time onsite |
| Combined space and domestic hot water heater | No need for separate appliances, saving space and particularly suitable for smaller plant rooms with space constraints |
| Compact and lightweight design that can be split into two parts | Easy to manoeuvre within a building; suitable for retrofit applications where plant rooms and/or access space may be limited |
| Almost instantaneous hot water generation of up to 2,240 litres/hr and small integral 300 litre storage tank | Reduction in standing heat losses and levels of hot water generation, saving energy and costs |
| Up to three gas-fired heat exchangers | Built in redundancy ensures a constant supply of hot water or heating |
| Natural gas or LPG | Available for off mains gas areas |
| ErP rated internal pump and circulators | Improved operating efficiency and performance |
| WRAS approved | Complies with the Water Supply (Water Fittings) Regulations and Scottish Byelaws |
| Immersion heater boss | Improved reliability – hot water back-up |
| Features | Benefits |
|---|---|
| Pre-packaged hot water and heating in one cabinet | |
| Combined space and domestic hot water heater | |
| Compact and lightweight design that can be split into two parts | |
| Almost instantaneous hot water generation of up to 2,240 litres/hr and small integral 300 litre storage tank | |
| Up to three gas-fired heat exchangers | |
| Natural gas or LPG | |
| ErP rated internal pump and circulators | |
| WRAS approved | |
| Immersion heater boss |
| Benefits |
|---|
| Quick and easy to install, saving time onsite |
| No need for separate appliances, saving space and particularly suitable for smaller plant rooms with space constraints |
| Easy to manoeuvre within a building; suitable for retrofit applications where plant rooms and/or access space may be limited |
| Reduction in standing heat losses and levels of hot water generation, saving energy and costs |
| Built in redundancy ensures a constant supply of hot water or heating |
| Available for off mains gas areas |
| Improved operating efficiency and performance |
| Complies with the Water Supply (Water Fittings) Regulations and Scottish Byelaws |
| Improved reliability – hot water back-up |
|
Model |
|||
| 150 | |||
| Energy | |||
| Heat input (gross) | kW | 152.1 (140.0) | |
| Heat output net (gross) | kW | 10.0 - 150.0 | |
| Nominal heat output @ 50/30ºC | kW | 10.0 - 147.4 | |
| Standby heat loss | W | 170 | |
| NOx emissions (0% 02) | mg/kWh | 56 | |
| NOx emissions (0% 02) | ppm | 36.8 | |
| ErP | |||
| ErP efficiency rating | N/A | ||
| Gas data | |||
| Gas flow rate (natural gas) | m3/h | 14.8 | |
| Water | |||
| Storage capacity | Litre | 300 | |
| Recovery rate at 50ºC rise | Litre/hr | 2,240 | |
| Recovery rate at 56ºC rise | Litre/hr | 2,000 | |
| Operating pressure (unvented) | bar | 3.5 | |
| Minimum working pressure | bar | 0.2 | |
| Maximum pressure | bar | 6 | |
| Heating | |||
| Efficiency heat output at part load (EN15502-1) gross (net) | % | 97.2 (107.9) | |
| Efficiency heat output at full load (EN15502-1) gross (net) | % | 88.0 (97.7) | |
| Seasonal efficiency (Building regs part 2) | % | 95.9 | |
| Maximum permitted system temperature | ºC | 82 | |
| Electrical | |||
| Fuse rating | amp | 5 | |
| Power supply | V | 240 v / 50 Hz | |
| Electrical power consumption | W | 425 | |
| Misc. | |||
| Noise level | dBA | 62 | |
| Weight full | kg | 641 | |
| Weight empty | kg | 320 | |
| Flue diameter | mm | 130/200 | |
| Flue system classification | N/A | B23, C13, C33 & C53 | |
| Max flue run (Single/Concentric) | N/A | 30/14 | |
The Andrews Water Heaters BIM library is being updated to comply with CIBSE PDT standards. If you require CIBSE compliant BIM files for this product, please fill out the form to receive new BIM files when they’re available and we will send them to you as soon as they’re ready. In the meantime, standard BIM files are available to download using the links below.
Advanced LOD500 BIM files are not currently available for this product. Complete the form to request Advanced files when they're available.
Feel free to call our technical helpine on 0345 070 1055 if you need any support.
| Code | Fault Description |
| 10 | Outside sensor, error |
| 20 | Boiler temperature 1, sensor error |
| 22 | Water pressure 3 too low |
| 26 | Common flow temperature, sensor error |
| 28 | Flue gas temperature, sensor error |
| 30 | Flow temperature 1, sensor error |
| 32 | Flow temperature 2, sensor error |
| 40 | Return temperature 1, sensor error |
| 50 | DHW temperature 1, sensor error |
| 60 | Room temperature 1, sensor error |
| 65 | Room temperature 2, sensor error |
| 68 | Room temperature 3, sensor error |
| 70 | Storage tank temperature 1, sensor error |
| 81 | LPB Short circuit |
| 83 | LPG collision |
| 84 | BSB address collision |
| 98 | Extension module 1, error |
| 99 | Extension module 2, error |
| 100 | 2 Clock time masters |
| 110 | STB lockout |
| 111 | Shutdown limit thermostat |
| 119 | Shutdown water pressure switch |
| 121 | Flow temperature heating circuit 1 not reached |
| 122 | Flow temperature heating circuit 2 not reached |
| 126 | DHW charging temperature not reached |
| 127 | DHW legionella temperature not reached |
| 128 | Loss of flame during operation |
| 130 | Flue gas temp too high |
| 133 | Safety time exceeded |
| 151 | BMU Internal error |
| 152 | Parameterization error |
| 153 | Unit manually locked |
| 160 | Fan speed threshold not reached |
| 217 | Sensor error |
| 218 | Pressure supervision |
| 317 | Mains frequency outside permissible range |
| 320 | DHW Charging temperature, sensor error |
| 322 | Water Pressure 3 too high |
| 323 | Water Pressure 3 too low |
| 324 | Input BX, same sensors |
| 325 | Input BX/extension module, same sensors |
| 326 | Input BX/mixing group, same sensors |
| 327 | Extension module, same function |
| 330 | Sensor input BX1 without function |
| 331 | Sensor input BX2 without function |
| 332 | Sensor input BX3 without function |
| 333 | Sensor input BX4 without function |
| 335 | Sensor input BX21 without function |
| 336 | Sensor input BX22 without function |
| 351 | Primary controller/system pump, address error |
| 353 | Cascade flow sensor B10 missing |
| 384 | Extraneous Light |
| 385 | Mains under voltage |
| 386 | Fan speed tolerance |
| 388 | DHW sensor no function |
| 432 | Function earth not connected |
| N/A | Operating mode button locked - Cannot operate in DHW or Heating mode (No fault displayed) |