Vitocrossal 200 CI2

Your first choice for mission-critical installations

Vitocrossal 200 CI2

Most advanced floor standing boiler with small footprint and high mass water volume

Vitocrossal 200 CI2 is a floor standing gas condensing boiler with modulating MatriX cylinder burner and stainless steel Inox-Crossal heat exchanger. Rated Input: 399 - 2000 MBH.

Outstanding efficiency
Compact & small footprint
7" color touchscreen
WiFi built-in

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High efficiency

Industry leading thermal efficiency up to 98% for lower energy costs.

Lambda PrO₂ combustion technology

Self-calibrating active O2 trim technology automatically adjusts to gas type and multiple vent options / lengths.

Highest water volume in class

No primary boiler pump required.

High modulation

Industry leading turn-down ratio up to 30:1 with modulating MatriX cylinder burner.

Digital control

Viessmann One Base control platform enables control via ViGuide app and digital services.

Easy installation and service

Integrated installation features for peak mobility.

Introducing the new Vitocrossal 200 CI2

The Vitocrossal 200 CI2 is a versatile boiler system offering a highly efficient solution for custom residential, as well as various commercial applications. With six sizes ranging from 399 to 2,000 MBH, this gas condensing unit can be cascaded for capacities up to 32,000 MBH.

Well-suited for tight commercial spaces

The Vitocrossal 200 CI2 is only 27 inches (68 cm) wide without casing, fitting through any standard door, providing ease of access for retrofit applications and is particularly recommended for modernization. Compact dimensions facilitate the replacement of old systems even in tight spaces, requiring a footprint of less than 9.9 ft².

The new Vitocrossal 200 CI2 is a contractor's dream with integrated installation features for peak mobility and unprecedented power density ratio allowing for optimal side by side installation even in the tightest spaces. A redesigned combustion chamber provides the same reliability and efficiency while reducing overall size by over 30%, yet still maintaining class-leading water volume and low pressure drop.

Vitocrossal 200 CI2 units can be hydronically cascaded for customizable solutions

Easy installation and maintenance

Fast installation and reduced maintenance come standard with the integrated  Lambda PrO₂ self-calibrating active O2 trim control management system to ensure consistently high and efficient combustion quality with low emissions.  Lambda PrO₂ with O2 trim technology automatically adjusts to multiple vent options and lengths, gas type and quality right out of the box; no calibration required.

Clean and efficient

The Viessmann-made modulating MatriX cylinder burner offers extremely clean combustion with up to a 30:1 turn-down ratio, and meets Low NOx requirements. Highest water volume in class (99 USG) means no primary boiler pump is required.

Viessmann-made MatriX cylinder burner

Advantages of the Vitocrossal 200

Class-leading low pressure drop and thermal efficiency.
Extremely clean combustion – meets Low NOx requirements.
High operational reliability and long service life with corrosion-resistant Inox-Crossal stainless steel heat exchanger.
Compact dimensions and small footprint boast an unprecedented power density ratio.
Side by side installation up to 16 cascaded boilers.
Integrated valve proving system (VPS) for all sizes.
External wall-mounted gateway available for Modbus TCP, Modbus RTU, and BACnet IP (up to 8 boilers per gateway).
Time-saving service – all components are easily accessible from the front and back of unit.

Look inside the boiler

  1. Viessmann One Base control platform
  2. 7" color touchscreen display
  3. MatriX cylinder burner  with self-calibrating active O2 trim technology
  4. Inox-Crossal heat exchanger
  5. Integrated casters

Product details

Fuel type

Natural gas (NG) or liquid propane gas (LPG)

Rated input

50 - 399 MBH (14.7 - 117 kW) for CI2-399
50 - 500 MBH (14.7 - 147 kW) for CI2-500
75 - 750 MBH (22.0 - 220 kW) for CI2-750
100 - 1000 MBH (29.3 - 293 kW) for CI2-1000
50 - 1500 MBH (14.7 - 440 kW) for CI2-1500
100 - 2000 MBH (29.3 - 586 kW) for CI2-2000

Combustion efficiency

97% for CI2-399 and CI2-500
96.9% for CI2-750
96.8% for CI2-1000
96.6% for CI2-1500
96.5% for CI2-2000

Total weight

789 lbs (358 kg) for CI2-399 and  CI2-500
963 lbs (437 kg)  for CI2-750 and CI2-1000
1812 lbs (822 kg)  for CI2-1500
1969 lbs (893 kg)  for CI2-2000

Overall dimensions


39 inches (992 mm) for CI2-399 and CI2-500
47¼ inches (1200 mm) for  CI2-750 and CI2-1000
56¼ inches (1428 mm) for  CI2-1500 and CI2-2000


29½ inches (750 mm) for all models


64½ inches (1640 mm) for CI2-399 to  CI2-1000
78¾ inches (1998 mm) for  CI2-1500 to CI2-2000


Limited 10 year commercial warranty. See warranty sheet for details.

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