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Viessmann CU3A-125 Vitocrossal 300 CU3A Gas-Condensing, Floor Standing Boiler 25-125K BTU Rated Input NG, 95% AFUE

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CU3A-125
SKU:
CU3A-125
Width:
26.00 (in)
Height:
61.50 (in)
Depth:
27.00 (in)
$4,902.50

Description

The Vitocrossal 300, CU3A gas-condensing, floor standing boiler is a testament to the power of a simple solution. With best-in-class, Viessmann-made components and no primary/secondary piping or low-loss headers required, the CU3A is the perfect choice for residential and light commercial applications – including high temperature heating, cast-iron boiler replacements and multi-zone systems.

Features

  • Best value in its class with industry-leading technology and the most standard features. Compact, floor-standing boiler with zero clearance to combustibles.
  • Self-calibrating Lambda Pro combustion management system ensures optimal combustion efficiency at all times regardless of gas/air quality.
  • Low-emission combustion for environmentally-friendly operation.
  • Zone circuit capabilities provide 3 input connections that allow easy integration of third party components.
  • Extremely quiet operation; quieter than most refrigerators.
  • User-friendly Vitotronic outdoor reset boiler and system control for multi-temperature space and DHW heating.
  • High-altitude operation up to 10,000 ft (3,000 m).

Specs

  • Overall Height (control open) Inches: 67
  • Overall Height (control closed) Inches: 61.5
  • Safety Header Connection Inches: 55
  • Boiler Supply† Inches: 49.5
  • Maximum Input (NG) MBH: 125
  • Minimum Input (NG) MBH: 25
  • Net AHRI Rating MBH: 101
  • AFUE %: 95
  • Weight lbs.: 275
  • Boiler Water Content USG: 13
  • Heat Exchanger Surface ft.: 20.7
  • Maximum Operating Pressure psig: 30
  • Minimum Gas Supply Pressure Naturel Gas (NG) “w.c.: 4
  • Gas Valve Connection NPTM: 3/4
  • Boiler heating supply and return (NPTM”): 1 1/4

Downloads

Specification Sheet

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