Gas condensing boiler
Highly efficient condensing boiler for apartment buildings, commercial enterprises and local authorities.
Gas condensing boiler
80 to 640 kW
Cascadable
Cascade operation up to 5120 kW (8 appliances)
Standard seasonal efficiency [to DIN]
Up to 97.7 % (Hs) [gross cv]
Modest space requirement
0.75 to 1.07 m² (80 to 640 kW)
Long service life
Due to modulating MatriX cylinder burner
High operational reliability
Thanks to Inox-Crossal stainless steel heat exchanger
H₂ ready
Can run on natural gas containing 20 % hydrogen
Efficient combustion control
Thanks to self-calibrating O₂ sensor
Quick installation
Due to integrated castors and transport pallet
Vitocrossal 300 (type CI3) –– particularly compact with high efficiency
The new Vitocrossal 300 (type CI3) gas condensing boiler is a highly efficient solution for apartment buildings, commercial enterprises and local authorities. Eight output sizes from 80 to 640 kW and cascade operation with integral control unit for up to 5120 kW in output make the Vitocrossal 300 particularly flexible. With its handling width of 75 cm, the boiler is also recommended for modernisation projects in buildings where space is limited. In addition, it has a modest footprint of just 0.75 to 1.07 m² (80 to 640 kW).
Quick installation and straightforward commissioning
The Vitocrossal 300 (type CI3) is supplied as a factory-tested unit. It can be quickly manoeuvred thanks to the integrated castors and practical transport pallet. The innovative Inox-Crossal heat exchanger made of high grade stainless steel enables a high power density on a very small footprint as well as both maximum output and reliability.
Highly efficient, clean burning and futureproof
The MatriX cylinder burner offers clean combustion with a modulation range of 1:10. The self-calibrating O₂ sensor, which automatically adjusts the MatriX burner to different gas types, ensures consistently high and efficient combustion quality. To potentially reduce CO₂ emissions, the unit can also burn a hydrogen content of up to 20 % with natural gas/LPG P when an admixture of green hydrogen is used.
Viessmann One Base with web monitoring
The Vitocrossal 300 is integrated into the Viessmann One Base platform. It can be commissioned easily and intuitively using ViGuide mobile. The assistant function displays all functions in plain text. This also enables monitoring with ViGuide, giving contractors direct access to heating systems using a smartphone or tablet. Parameters can be easily optimised in this way and upcoming maintenance flagged in good time.
Product details
- Output in kW (modulating)
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80 to 640 kW, as type 300 CI3 output levels: 80; 115; 160; 240; 320; 480; 560; 640, cascade operation up to 5120 kW
- Standard seasonal efficiency [to DIN]
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up to 97.7 % (Hs) [gross cv]
- Energy efficiency class
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- Fuel
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Natural gas E, L and LL, natural gas/LPG with up to 20 % hydrogen
- Application area
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Gas heating in apartment buildings, large residential buildings as well as in public and commercial premises, new build and modernisation projects
- Additional features
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Efficient combustion control with self-calibrating O2 sensor | Inox-Crossal stainless steel heat exchanger for high operational reliability and a long service life | Continuous operation with MatriX cylinder burner with a modulation range of 1:10
- Product cross-section (160 kW)
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