- Fuel type
Natural gas (NG) or liquid propane gas (LPG)
- Rated input (NG)
131 - 663 MBH (38.5 - 194 kW) for CM2-186
175 - 878 MBH (51 - 257 kW) for CM2-246
222 - 1112 MBH (65 - 326 kW) for CM2-311
287 - 1445 MBH (84 - 423 kW) for CM2-400
358 - 1800 MBH (105 - 527 kW) for CM2-500
450 - 2245 MBH (132 - 658 kW) for CM2-620
- Combustion efficiency
95% for CM2-186 to CM2-311
95.1% for CM2-400 to CM2-620
- Total weight
726 lbs (329 kg) for CM2-186
759 lbs (344 kg) for CM2-246
792 lbs (359 kg) for CM2-311
1495 lbs (678 kg) for CM2-400
1662 lbs (754 kg) for CM2-500
1929 lbs (875 kg) for CM2-620
- Overall dimensions
73 inches (1852 mm) for CM2-186 to CM2-311
89½ inches (2273 mm) for CM2-400
95⅝ inches (2429 mm) for CM2-500
100⅞ inches (2562 mm) for CM2-620
26½ inches (930 mm) for CM2-186 to CM2-311
42⅜ inches (1078 mm) for CM2-400 to CM2-500
44⅜ inches (1128 mm) for CM2-620
66 inches (1676 mm) for CM2-186 to CM2-311
65⅝ inches (1666 mm) for CM2-400 to CM2-500
68¾ inches (1748 mm) for CM2-620
Limited 10 year commercial warranty. See warranty sheet for details.
Unparalleled flexibility and maximum efficiency
A versatile solution that's highly efficient and reliable
Vitocrossal 200 CM2 is a gas-fired condensing boiler with stainless steel Inox-Crossal heat exchanger and fully-modulating cylinder burner. Rated input: 131 to 2245 MBH (single) / 17960 MBH (cascade).
And wide modulation range of 5:1 turn-down ratio precisely matches load conditions.
Extremely low NOx emissions
And quiet operation from new fully-modulating Viessmann pre-mix cylinder burner.
With installed air intake kit for direct/chimney venting (PP or stainless steel) up to 200 ft.
Pre-assembled burner simplifies installation and commissioning
Seamless integration with building management systems.
Switch between natural gas (NG) and propane (LPG) with simple electronic conversion.
A practical approach to innovation
With its distinctive mix of proven Viessmann technology and innovative new features, the new Vitocrossal 200, CM2 takes a bold step forward while retaining the superior Viessmann quality you know and trust. The boiler combines unparalleled flexibility with maximum efficiency, making it your ideal choice for a new installation or economical retrofit in large residential or commercial applications.
Viessmann technology from top to bottom
A fully-modulating Viessmann pre-mix cylinder burner features a wide modulation turn-down ratio of 5:1 to precisely match load and provide clean, quiet and environmentally friendly operation. The burner comes fully pre-assembled to simplify installation and commissioning.
The generous heat transfer surface area to heat input ratio of the stainless steel Inox-Crossal heat exchanger allows for maximum heat extraction while maintaining a compact size. Its smooth, corrosion-resistant surface allows condensate to simply run off – a "self-cleaning" process that ensures continuous condensing efficiency, reduced maintenance costs and longer boiler service life.
Vitotronic 300, GW6B touchscreen control
Featuring a large 5-inch color touchscreen display, with text and graphics for user-friendly operation, the Vitotronic 300 GW6B can be used as a stand-alone boiler control with outdoor reset capabilities, or as a primary/secondary control in a multi-boiler system (up to 8 boilers) – a separate cascade control is no longer required.
Advantages of the Vitocrossal 200
* Contact your Viessmann Representative for boiler pump and low-loss header requirements in multiple-boiler installations.
Look inside the boiler
- Vitotronic 300, GW6B touch screen control
- Fully-modulating pre-mix cylinder burner
- Inox-Crossal heat exchanger surfaces
- Highly effective thermal insulation
- Wide water passageways with low pressure drop