MVB Modulating Vertical Hydronic Boilers 503A-2003A

Time-honored technologies unite with cutting-edge advancements in Raypak’s MVB modulating vertical boiler.  Small space is no longer a problem, and our compact design fits through a 32” door opening to make it the perfect choice for those hard-to-reach retrofit projects.

MVB Modulating Vertical Hydronic Boilers 503A-2003A


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

  • 86.2% Thermal Efficiency at Full Rate; Up to 88.4% at Part Load.
  • Positive vent pressure, Condensing Appliance.  Cat IV Vent 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.
  • CSA Low-Lead certified, less than 0.25% Lead.
  • Certified to ANSI Z21.13.
  • Minimum Inlet Water Temperature: 120°F.
  • Maximum Operable Outlet Water Temperature: 235°F.
  • Electronic Modulation, up to 7:1 Turndown.
  • VERSA IC® Control Package with Built-In Outdoor Reset Function and LCD Display, Including System Sensor, Indirect Sensor & Indirect Supply Sensor.
  • Status Display Lights.
  • Cascade Control of up to 4 units, no external sequencer required.
  • Diagnostics Center with History, English, no codes.
  • Modbus RTU BMS port (RS485).
  • 0-10 VDC BMS Interface (Setpoint or Direct Drive).
  • All models indoor/outdoor construction.
  • Certified under SCAQMD Rule 1146.2.  Meets all Low NOx regulations.
  • Engineered with precisely matched system components.
  • Smallest installed footprint (5.4 square feet) design fits tight spaces and easily replaces larger boilers.
  • 100% Factory Fire Tested.
  • Complete cabinet protects all controls and wiring. Tough, rust-resistant powder-coat finish.
  • Suitable for altitudes up to 10,000 ft. (derate above 2,000 ft.).
  • No boiler condensate drain required (proprietary design)
  • Available for natural gas or propane.
  • Integral Combustion Air Filter (MERV8).
  • Multiple Pump Outputs – Boiler Pump, System Pump, Indirect Pump.
  • Whisper-Quiet Operation.
  • Proudly Assembled in the USA.

Options:

  • Outdoor air Sensor (B-32)
  • BACNet IP, BACnet MS/TP, Modbus TCP, N2 Metasys (B-85)
  • Lonworks (B-86)
  • Alarm with 4” Bell (E-5)
  • Low Water Cutoff (F-10)
  • Cold Water Start (not for potable water systems)
  • Cold Water Run
  • Condensate Neutralizer (Z-12)


PRODUCT VIDEOS
How it Works Video
Service Video
Service Video
Service Video
Service Video
Service Video

By continuing to use this website, you agree to our use of cookies. For more information, see our Privacy Statement.

OK