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Raypak’s Next Generation
Modulating Boiler
Time-honored technologies unite with cutting-edge advancements in
Raypak’s MVBா modulating vertical boiler. Never before has a vertical
boiler provided both the installer and building owner such installation
flexibility, ease-of-commissioning, reliability and long-term perform-
ance. Small space, not a problem. The MVB has the smallest installed
footprint of any vertical boiler, only 5.4 square feet. Raypak’s MVB is
built with commercial-grade components and materials. From our
steel channel base to our stainless steel flue wrapper, you can tell the
MVB is built to last. It’s easy to handle and install, but still user
friendly to service. Our compact design fits through a 30” door open-
ing making it the perfect choice for those hard to reach retrofit proj-
ects. Now is the perfect time to take a closer look at Raypak.
Flexibility
Small diameter vents and industry-leading vent length allowances
afford greater vent location options, thus reducing wasted space. Vent
versatility is further enhanced by the self-tuning combustion system
which compensates for unusual chimney and vent configurations.
Category I* -CSA-certified 84% boiler and up to 85% water heater
models available. Our category I solution is the perfect replacement
for your retro-fit applications. This reduces the installed cost by using
existing category I venting or chimney. Installation couldn’t be easier;
all connections are on the back of the unit. Start-up is a snap, it’s as
close to plug-n-play as a boiler can get.
Category IV -CSA-certified 87% efficiency at full fire–the highest pos-
sible for non-condensing boilers
(Up to 88.4% at part load!)
When
the job requires high efficiency, our category IV solution meets your
needs.
At the heart of every Raypak MVB is a unique integral evaporator
system - the first defense against harmful condensation. Raypak’s
evaporator system collects and re-evaporates condensate which may
form during initial start-up or brief periods of cold-water operation,
eliminating the need for a boiler condensate drain. This saves you
money on installation costs as well as the headache of dealing with
multiple condensate drains.
True Modulation
Modulation is nothing new to Raypak, we have honed our gas modu-
lation experience for over 50 years. The Raypak MVB will infinitely
track the heating load precisely with it’s built in TempTracker Mod
control, eliminating costly overshooting. Utilizing the latest European
technology for the blower-gas valve package, the optimum fuel-air
ratio is maintained throughout the entire range of the load-tracking
operation. Our smooth 4:1 turndown (503 thru 2003) ensures effi-
ciency is maintained through out the firing rate and actually increases
during part load, right when you want it! The MVB automatically self-
tunes to accommodate the widest range of gas supply pressures. The
high quality integrated blower-gas valve is self-correcting and allows
smooth operation with fluctuating gas supply pressures. The Raypak
MVB is cutting edge technology with atmospheric simplicity
.
Key Features
• 12 models from 500,000 to 2,000,000 BTUH
• Up to 85% efficiency (Cat. I*);
• Up to 88.4% efficiency (Cat. IV)
• No boiler condensate drain required (proprietary design)
• Lowest minimum required inlet water temperature (120F)
• Modulating gas valve and burner, up to 4:1 (503 thru 2003)
turndown
• Engineered with precisely matched system components
• Smallest installed footprint (5.4 square feet) design fits tight
spaces and easily replaces larger boilers
• Advanced diagnostics center, real English fault codes
• All models indoor/outdoor certified
• Complete cabinet protects all controls and wiring
• Meets all current Low NOx regulations
• Suitable for altitudes up to 10,000 ft. (derate above 5,000 ft.)
• With all copper and optional bronze waterways, the MVB is
available in boiler and water heater configurations
• Inline combustion air filter (MERVB)
Category I*-up to 85% efficiency
Category IV-up to 88.4% efficiency
2
*Category I with vertical vent, category III with horizontal venting and no extractor.