Product Information - Viessmann VITOCROSSAL 300 Technical Data Manual

Product Information

Benefits
Equipped with the industry's first intelligent combustion
management system and powerful control technology,
the new generation Vitocrossal 300 CU3A gas-fired
Floor mounted condensing boiler delivers unparalleled
performance, reliability and comfort.
The benefits at a glance:
■ Best value in its class with new industry-leading
technology and the most standard features.
■ Highest Efficiency up to 98% at full modulation and up
to 95% A.F.U.E.
■ Lasting performance with industry-leading Viessmann
made SA240 316 Ti stainless steel Inox-Crossal heat
exchanger constructed to CSA B51 and ASME Section IV.
■ Low Emission Combustion with Viessmann made
stainless steel MatriX burner. Factory calibrated.
■ Fast Installation and Reduced Maintenance with Lambda
Pro, industry-first intelligent combustion management
system: Adjusts automatically to gas type and quality.
No fuel conversion kit required.
■ Powerful and User-friendly
Viessmann Vitotronic on-board multi-function outdoor
reset boiler and system control for multi-temperature
space and DHW heating.
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Vitocrossal 300 CU3A 26 to 57 Technical Data
■ Expanded Application Range with increased capacity up
to 199 MBH (58 kW). Multi-boiler installation up to
1592 MBH (464 kW) with up to 8 boilers.
■ Greater Venting Flexibility with increased vent length [up
to 198 ft. (60 m)] and multiple venting options.
- Horizontal or vertical sealed combustion coaxial
venting (field supplied).
- Horizontal, vertical or hybrid sealed combustion
double-pipe venting (field supplied).
- Horizontal or vertical single-wall venting (field
supplied).
■ Compact, Esthetic Product Design and zero clearance
to combustibles.
■ Extremely Quiet Operation; quieter than most
refrigerators.
■ True High-Altitude Operation up to 10,000 ft. (3,000 m)
with simple electronic adjustment.
■ Efficiency up to 98% through intensive condensation.
The flue gas temperature is only approximately 9-27ºF
(5-15ºC) above boiler return temperature.