Rinnai R75LSI (VA2528FFUD) Water Temperature Control Controller Controller Cable, NOx Warranty

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Water Temperature Control Controller

Controller Cable

R75LSi (VA2528FFUD)

Simulation feed forward and feedback

MC-91-1US (part of the front panel)

Deluxe controller: MC-100V-1US (optional)

Bathroom controller: BC-100V-1US (optional)

Wireless controller: MC-502RC-1US-MS (optional)

MCC-91-1US (for commercial applications)

Non-polarized two-core cable, minimum 22 AWG

Safety Devices

Clearances from Combustibles (suitable for closet, attic, and crawl space installations)

Clearances from Non-combustibles

Min. / Max. Gas Supply Pressure

Manifold Gas Pressure (inches W.C.)

Flame failure - Flame Rod

Boiling protection

Combustion fan rpm check

Over current - glass fuse (3 amp)

Top of heater - 6 inches

Front of heater - 6 inches

Sides of heater - 2 inches

Top of heater - 2 inches

Front of heater - 6 inches

Sides of heater - 1/2 inch

Natural Gas: min 5” W.C.

Propane Gas: min 8” W.C.

Natural Gas: high fire 2.7” W.C.

Propane Gas: high fire 4.4” W.C.

Remaining flame (OHS)

Thermal fuse

Automatic frost protection

Back of heater - 0 inches

Bottom of heater - 12 inches

From vent pipe - 0 inches

Back of heater - 0 inches

Bottom of heater - 12 inches

From vent pipe - 0 inches

max 10.5” W.C. max 13.5” W.C.

low fire 0.52” W.C. low fire 0.92” W.C.

NOx Warranty

Meets California and Texas NOx Emission Rules

Heat exchanger: 12 years* for residential and 5 years* for commercial and hydronic applications; (10 years* if used with the Rinnai Hydronic Air Handler); all other parts 5 years*; labor 1 year; (* 3 years if used as a circulating water heater within a circulation loop, when the water heater is in series with a circulation system and all circulating water flows through the water heater)

Rinnai is continually updating and improving products; therefore, specifications are subject to change without prior notice. Local, state, provincial and federal codes must be adhered to prior to installation.

DIMENSIONS

in (mm)

22.9 (582)

14 (355.6)

9.6 (244.5)

25.5 (648.2)

WEIGHT: 50 LBS (23 KG)

3.6 (91)

1.1 (27)

2.8 (70)

3.9 (99)

 

 

4.3 (110)

3.5 (89)

 

The wall bracket is adjustable to allow an additional 1.57 inches (40 mm).

Rinnai Corporation • 103 International Drive • Peachtree City, GA 30269 • Toll-Free: 1-800-621-9419 • Fax: 678-364-8643 • www.rinnai.us

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Contents R75LSi VA2528FFUD Flow TableDimensions Water Temperature Control Controller Controller CableNOx Warranty Weight 50 LBS 23 KG

R75LSI (VA2528FFUD) specifications

The Rinnai R75LSI (VA2528FFUD) is a modern and efficient tankless water heater designed for residential use, providing a continuous supply of hot water while conserving energy. With its innovative features and advanced technologies, the R75LSI stands out as an ideal choice for households seeking both reliability and efficiency.

One of the main features of the Rinnai R75LSI is its impressive heating capacity. It can deliver up to 7.5 gallons of hot water per minute, making it suitable for homes with multiple bathrooms and high hot water demands. This capacity ensures that families can enjoy hot showers, washing dishes, and running laundry simultaneously without running out of hot water.

The R75LSI is equipped with a highly efficient heat exchanger that utilizes stainless steel, enhancing its durability and resistance to corrosion. This feature contributes to the unit's longevity and performance, ensuring that homeowners receive hot water for many years without the need for frequent replacements.

A standout technology of this model is its condensing technology, which allows the unit to achieve an impressive energy efficiency rating. The R75LSI operates with an Energy Factor of up to 0.95, meaning that a significant portion of the energy used to heat water is converted into hot water, leading to lower energy costs and reduced environmental impact.

Safety is a top priority with the Rinnai R75LSI. It comes equipped with multiple safety features, including an overheat cut-off switch and a freeze protection mechanism. These safeguards ensure that the unit operates safely under various conditions, giving homeowners peace of mind.

Installation flexibility is another characteristic that enhances the R75LSI's appeal. It can be installed in various locations, including indoors and outdoors, allowing homeowners to optimize space without compromising on performance. The compact design ensures that the unit can fit into tight spaces, while still providing powerful and efficient hot water supply.

In conclusion, the Rinnai R75LSI (VA2528FFUD) combines high performance, energy efficiency, and safety features into one powerful tankless water heater. Its ability to deliver a continuous flow of hot water, coupled with its durable construction and advanced technologies, makes it an excellent choice for modern households looking to enhance their comfort while being mindful of energy consumption.