Ultimate₃ system installation and maintenance instructions
- Device Type
- 25S
- Size
- 7.82 MB
The Ultimate₃ system boiler is suitable for homes with high hot water demands. The Ultimate₃ system is a sealed system that comes in a 25kW output and features flexible flue options and an aluminium heat exchanger for proven reliability and performance. The Ultimate3 also features a Grundfos modulating pump for reduced energy use and a modern bright LCD display with an easy to use interface.
Features & benefits
Ultimate₃ system boiler | Unit | 25kW |
---|---|---|
General | ||
Article number | 0010021405 | |
Gas Council number | 47-019-51 | |
Boiler dimensions (H x W x D) | mm | 740 x 418 x 300 |
Heating | ||
Nominal heat output range at 50/30˚C (Condensing mode) | kW | 6.3 - 26.5 |
Nominal heat output range at 80/60˚C (Non condensing mode) | kW | 6 - 25.2 |
Domestic Hot Water | ||
Lowest water pressure to operate boiler | bar | 0.2 |
Mechanical | ||
Heat exchanger material | Aluminium | |
Boiler lift weight (Dry boiler) | kg | 22 |
Performance | ||
ErP efficiency | % | 94 |
ErP decibel rating (sound power) | dBa | 50 |
PCDB seasonal efficiency | % | 89.7 |
Flueing Options | ||
Maximum horizontal flue length 60/100 | m | 10 |
Maximum vertical flue length 60/100 | m | 10 |
For full specification, please download here (2878 kB).