C53i (2520FFUC)

Type of Appliance Rinnai model number Operation Exhaust system Minimum/Maximum Gas Rate (Input) Electrical

Electrical Consumption

Ignition System

Hot Water Capacity

Temperature

Temperature (without remote)

Approved Gas Types

Installation

Energy Factor

Thermal Efficiency

Service Connections

Water Flow Control

Minimum/Maximum Water Supply Pressure

Temperature controlled, continuous flow, gas hot water system REU-V2520FFUC-US

With or without remote controls, mounted in kitchen, bathroom, etc. Direct vent, forced combustion

15,000 - 180,000 BTU/h (Natural Gas or Propane)

Appliance:

AC 120 Volts - 60 Hz

Remote Control:

DC 12 Volts

Normal

75 watts

Standby

5.5 watts

Anti-frost protection

100 watts

Direct electronic ignition

 

0.6 to 5.3 GPM (50° F rise)

0.6 to 5.3 GPM (35° F rise)

120° - 185° F

 

140° F (factory default)

 

Natural or Propane (ensure unit matches gas type)

Indoor only

 

Natural Gas: 0.81

Propane: 0.81

Natural Gas: 84%

Propane: 84%

Gas supply: 3/4 inch MNPT

Cold water inlet: 3/4 inch MNPT

Hot water outlet: 3/4 inch MNPT

Water flow sensor, electronic water control device, no bypass

20 - 150 PSI (50 PSI or above is recommended for maximum flow)

FLOW TABLE

Water Flow Capacity Curves

(For 1 to 5 units manifolded in parallel)

2520FFUC SP-1

© 2005 Rinnai Corporation

2520FFUC SP-1

12/2006

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Rinnai REU-V2520FFUC-US manual C53i 2520FFUC, Flow Table

REU-V2520FFUC-US specifications

The Rinnai REU-V2520FFUC-US is a highly efficient and reliable tankless water heater that is specifically designed to meet the demands of both residential and commercial applications. This model stands out for its combination of advanced technology, energy efficiency, and user-friendly features, making it an ideal choice for anyone looking to invest in a high-quality water heating solution.

One of the main features of the REU-V2520FFUC-US is its ability to deliver continuous hot water on demand. Unlike traditional storage water heaters that run out of hot water after a certain period, this tankless system heats water directly as it flows through the unit. With a powerful heating capacity of up to 252,000 BTU, the unit can provide a steady supply of hot water, ensuring that multiple outlets can be used simultaneously without any drop in performance.

The Rinnai REU-V2520FFUC-US utilizes advanced condensing technology that enhances its energy efficiency. With an impressive energy factor (EF) rating, this model minimizes energy consumption, which not only helps to reduce utility bills but also contributes to a lower carbon footprint. The unit’s powerful condensing feature allows it to recover heat from exhaust gases, further maximizing energy savings.

Another notable characteristic of the REU-V2520FFUC-US is its compact design, which makes it an excellent choice for installation in smaller spaces. Weighing only about 80 pounds and measuring significantly smaller than traditional tank systems, it can be mounted on walls, freeing up floor space for other uses. This flexibility in installation options makes it suitable for various environments, including tight utility rooms or garage spaces.

Furthermore, the unit is equipped with advanced safety features, including a built-in temperature control system and protection against overheating. This ensures both efficiency and safety, offering peace of mind to homeowners and businesses alike. The unit is also designed for ease of maintenance, with accessible components that allow for quick service and repairs.

With a robust warranty and high customer satisfaction ratings, the Rinnai REU-V2520FFUC-US is a reliable investment in energy-efficient hot water solutions. Its advanced technology, superior performance, and user-centric design features position it as a leading option in today’s market, catering to the needs of diverse users looking for dependable hot water solutions.