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.
⦁ 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 8 units, no external sequencer required.
⦁ Cascade in parallel or sequential modulation modes.
⦁ 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.
⦁ 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)
Contact us for any part inquiry
Long Island Office
Address: 1363 Lincoln Avenue, Unit 3, Holbrook, NY 11741
Tel: +(631) 253-2300
Fax: +(631) 253-0166
New York City Office
Address: 1501 Broadway, 12th Floor
New York, NY 10036
Tel: +(631) 847-2601