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MVB® Modulating Vertical Hydronic Boilers 87%

BASIC DATA

Model Full Input in BTUH Flue Dia.
 H7-503A  500,000 6″
 H7-753A  750,000  6″
 H7-1003A  999,000  6″
 H7-1253A  1,250,000  8″
 H7-1503A  1,499,000  8″
 H7-1753A  1,750,000  8″
 H7-2003A 1,999,000  8″


Features:

  • 87% Thermal efficiency; Cat IV venting required.
  • Cast-iron headers with copper finned tube heat exchanger standard.  Brass headers and cupro-nickel tubes available as options. ASME Section IV constructed and stamped, National Board Registered. AB 1953 compliant.
  • No boiler condensate drain required (proprietary design).
  • Minimum required inlet water temperature 120F.
  • Modulating gas valve and burner, up to 7:1 turndown.
  • Engineered with precisely matched system components.
  • Smallest installed footprint (5.4 square feet) design fits tight spaces and easily replaces larger boilers.
  • All models indoor/outdoor certified.
  • Complete cabinet protects all controls and wiring.
  • Certified under SCAQMD Rule 1146.2. Meets all Low NOx regulations.
  • Suitable for altitudes up to 10,000 ft. (derate above 5,000 ft.).
  • Inline combustion air filter (MERV8).
  • Available for natural gas or propane.
  • Multiple pump outputs – Boiler Pump, System Pump, Indirect Pump.
  • Whisper quiet operation.
  • VERSA IC® control package with built-in outdoor reset function.
  • On-board disgnostic center, English, no codes.
  • 0-10 VDC BMS Interface (setpoint or direct drive).
  • Built-in cascade function for up to 4 boilers.
  • Modbus® RTU port (RS485).

Options:

  • Outdoor air sensor (B-32).
  • Indirect sensor.
  • Condensate neutralizer (Z-12).



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