Category I*-up to 85% efficiency

Category IV-87% efficiency

Raypak’s Next Generation

Modulating Boiler

Time-honored technologies unite with cutting-edge advancements in Raypak’s new MVB 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 performance. 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.

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.

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 possible 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.

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 and easy component access make service simple

All models indoor/outdoor certified

Complete cabinet protects all controls and wiring

Meets all current Low NOx regulations, including the new 2010 SCAQMD revisions

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

*Category I with vertical vent, category III with horizontal venting and no extractor.

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Raypak 504 thru 2004, 503 thru 2003 Raypak’s Next Generation Modulating Boiler, True Modulation, Flexibility, Key Features

503 thru 2003, 504 thru 2004 specifications

Raypak, a well-known manufacturer in the HVAC and pool heating industry, has been at the forefront of innovation with their models 503 through 2003 and 504 through 2004. These models are recognized for their dependability, efficiency, and advanced features that cater to both residential and commercial applications.

One of the primary characteristics of the Raypak models 503 and 504 is their robust construction. Built with durability in mind, these heaters use high-quality materials that withstand varying weather conditions, ensuring longevity and reduced maintenance costs. The exterior casing is designed to resist corrosion, a common issue in humid environments, thereby enhancing the unit's lifespan.

Energy efficiency is another standout feature of the Raypak 503 and 504 models. These units integrate advanced heating technologies that utilize less energy while providing ample heating power. The proprietary heat exchanger design maximizes thermal transfer, ensuring that more of the energy consumed is effectively used for heating purposes. This not only contributes to lower utility bills but also aligns with growing environmental concerns regarding energy consumption.

In terms of technology, the Raypak models incorporate user-friendly digital controls that simplify the operation of the heater. These controls allow users to set precise temperatures and monitor system performance easily. Additionally, the built-in diagnostics feature alerts users to any issues, facilitating prompt maintenance and reducing downtime.

The compact design of these models is another benefit that does not go unnoticed. They can be installed in tight spaces, making them ideal for residential properties with limited room for large heating units. This flexibility in installation allows homeowners and contractors to optimize available space without sacrificing heating performance.

Moreover, both the 503 and 504 models come with a range of safety features. These include automatic water temperature limit controls and built-in freeze protection, which are essential for preventing damage during cold weather.

In summary, Raypak's 503 from 2003 and 504 from 2004 models showcase a blend of durability, energy efficiency, advanced technologies, and user-friendly features. They represent a commitment to providing high-quality heating solutions that meet the demands of modern consumers and businesses alike. With a focus on reliability and performance, Raypak continues to set benchmarks in the heating industry.