Product Description
Rinnai RUC80i (REU-KBD2530FFUD) Ultra Series Interior Tankless Water Heater 157k Btu 8.0gpm max with Valve
NOW WITH MORE VENTING OPTIONS RIGHT OUT OF THE BOX!
Rinnai Ultra Series Tankless Water Heaters deliver innovation and technological leadership in condensing tankless water heating design. Providing homeowners with an endless supply of hot water, energy savings, a space saving design and environmental benefits, Rinnai offers ease of installation now with more venting options right out of the box. As the only manufacturer to offer both concentric and twin-pipe PVC venting, no adaptor is necessary to give you double the venting options on every installation. One unit. Two venting options. From one project to the next, with the RUC line of Ultra Series Tankless Water Heaters the freedom of choice is yours … right out of the box.
SAVES TIME
- Delivers an endless supply of hot water whenever and wherever it’s needed – simultaneously to multiple fixtures.
- The ONLY manufacturer to offer both Concentric and PVC, providing more venting options right out of the box saving you time, money and the best flexibility to get the job done fast.
SAVES MONEY
- Up to .96 Energy Factor (ENERGY STAR qualified)
SAVES SPACE
- Similar in size to a carry-on suitcase, our space-saving design allows installation almost anywhere.
GREEN
- Earth-friendly technology produces lower CO2 emissions which contribute to cleaner air and a healthier environment.
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Dimensions
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Width: 18.5 inches
Height: 26 inches
Depth: 10 inches
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Weight
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61.7 lbs / 28.0 kg
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Installation Type
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Indoor
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Minimum/Maximum Gas Rate (Input BTUs)
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15,200 – 152,000 Natural Gas and Propane
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Energy Factor
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0.96
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Temperature Range
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Residential: 98°F – 140°F with MC-91-2US
Commercial: 98° F – 185° F with MCC-91-2US
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Approved Gas Types
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Natural Gas or Propane
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Minimum Activation Rate
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0.4 GPM
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Flow Rate (70 / 50 degree rise)
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4.2 / 5.9
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Hot Water Flow Rate Range
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0.26 to 8.0 GPM
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Controllers*
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MC-91-2US (included)
MCC-91-2US (optional for Commercial or Hydronic Applications)
MC-100V-1US Deluxe Controller (optional)
BC-100V-1US Bathroom Controller (optional)
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Ultra Low NOx
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Yes
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Warranty (Residential)
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Limited 12-year on heat exchanger, 5-year on parts, 1-year on labor (5-year optional on labor)
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Warranty (Commercial)
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Limited 5-year on heat exchanger, 5-year on parts, 1-year on labor (2-year optional on labor)
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Circ-Logic Compatible (S/N)**
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DB.BA-006201
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Circ-Logic Compatible (P/N)***
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REU-KB2530FFUD-US
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Mobile Home Certified
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Yes
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Valves Shipped in Box
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Yes
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High Altitude Approved
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Up to 10,200 ft.
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Ceritifications
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AHRI, UPC, CSA, NSF, UMC, Energy Star®
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Venting Options
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PVC/CONCENTRIC PP
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Specifications: |
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| Type of Appliance: | Condensing, Tankless, Temperature Controlled, Continuous Flow, Gas Hot Water System |
| Energy Star Qualified. | |
| Rinnai Model Number: | REU-KBD2530FFUD-US |
| Operaton/Installation: | Forced Combustion; indoor only, certified for installation in Manufactued (Mobile) homes |
| Minimum/Maximum Gas Rate (Input): | 15,200 – 152,000 BTU/h (4.5-44.4kW) |
| Electrical: | Appliance: AC 120 Volts – 60 Hz; Temperature Controller: DC 12 Volts |
| Electrical Consumption: | Normal: 42 w Stanby: 2 w Anti-frost Protection: 146 w |
| Amperage: | Max with pump: 8A Max without Pump: 4A Fuse: 10A |
| Ignition System: | Direct electronic ignition |
| Hot Water Capacity: | Minimum flow rate: 0.26 GPM (1 l/min) |
| Minimum activation flow rate: 0.4 GPM 1.5 l/min) | |
| Maximum flow rate: 8.0 GPM (30.3 l/min) | |
| Temperature: | 98°-120°F(37° – 49°C) (factory default) Maximum temperature is selectable at 120°F(49°C) or at 140°F(60°C); 98°-185°F(37°-49°C) available with the MCC-91-2 controller for commercial and hydronic applications |
| Temperature (without Remote): | 120° F (49°C) (factory default) or 140° F (60°C) |
| Approved Gas Types: | Natural or Propane (ensure unit matches gas type) |
| Energy Factor (FE): | Natural Gas: 0.96; Propane: 0.96 |
| Service Connections: | Gas supply: 3/4 inch (19mm) MNPT |
| Cold water inlet: 3/4 inch (19mm) MNPT | |
| Hot water outlet: 3/4 inch (19mm) MNP | |
| Isolation & Pressure Relief Valves Included: | Heavy duty forged brass Webstone Isolator valves EXP E2, certified to NSF/ANSI 61-8 for potable water |
| Water Flow Control: | Water flow sensor, electronic water control and by-pass control |
| Minimum/Maximum Water Supply Pressure: | 15-150 PSI (104-1035 KPa) (50 PSI (345 KPa) or above is recommended for maximum flow) |
| Eternal Recirculation Pump Control: | Built in Rinnai Circ – Logic: Recirculation program cycles Exteriorernal pump |
| Controller: | MC-91-2US (included) |
| MCC-91-2US (Optional; for hydronic and commercial applications) | |
| Deluxe controller: MC – 100V – 1US (optional) | |
| Bathroom controller: BC – 100V – 1US (optional) | |
| Controller Cable: | Non-polarized two-core cable, minimum 22 AWG |
| Safety Devices: | Flame failure – Flame Rod Remaining flame (OHS) |
| Boiling protection Thermal fuse | |
| Combustion fan rpm check Automatic frost protection | |
| Over current – glass fuse | |
| Clearances from Combustibles: | Top of heater – 6 Inches (152.4mm) Back of heater – 0 Inches |
| Front of heater – 6 Inches (152.4mm) Bottom of Heater – 12 Inches (304.8mm) | |
| Sides of heater – 2 Inches (304.8mm) From vent pipe – 0 inches | |
| Clearances from Non-Combustibles: | Top of heater – 2 Inches (304.8mm) Back of heater – 0 Inches |
| Front of heater – 6 Inches (152.4mm) Bottom of Heater – 12 Inches (304.8mm) | |
| Sides of heater – 1/2 Inches (12.7mm) From vent pipe – 0 inches | |
| Min./Max. Gas Supply Pressure: | Natural Gas: min 4” W.C. (2.5mbar) max 10.5” W.C. (26.1mbar) |
| Propane Gas: min 8” W.C. (20mbar) max 13.5” W.C. (33.6mbar) | |
| Manifold Gas Pressure (inches W.C.): | Natural Gas: high fire 1.8” W.C. (6.5mbar) low fire 0.42” W.C. (1.05mbar) |
| Propane Gas: high fire 2.1” W.C. (5.2mbar) low fire 0.47” W.C. (1.2mbar) | |
| NOx: | Complies with South Coast Air Quality Management District 14 ng/J or 20 ppm NOx emission level |
| Venting: | Direct Vent system designed for use with Ubbink Polypropylene Concentric Vent, Twin Pipe PVC/CPVC (3” and 4” configurations), or Centrotherm 3” Polypropylene (with Centrotherm Twin Pipe Adapter) |
SKU: RUC80i REU-KBD2530FFUD REUKBD2530FFUD