RUCS75iN RUCS Model Series
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Enjoy an endless supply of hot water with the RUCS75iN, our Super-High Efficiency condensing natural gas tankless water heater from Rinnail. Only the size of a small suitcase, the RUCS75iN is compact, easy-to-install and perfect for indoor locations.
- Energy Factor: 0.93
Uniform Energy Factor: 0.9 - Warranty 12 yrs on Heat Exchanger/ 5 years on Parts/ 1 Year on Labor
- 10,300 BTU (minimum)
160,000 BTU (maximum) - Indoor
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Up to twice the lifespan of most tanks
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Never run out of hot water
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Compact size to fit every space
Specifications
| Manufacturer Trade Model Number - U.S. | RUCS75iN |
|---|---|
| Product Depth | 10.1 in / (257 mm) |
| Product Height | 31.1 in / (789.6 mm) |
| Product Width | 18.5 in / (470 mm) |
| Product Weight | 57.3 lb / (26 kg) |
| Gas Type | Natural Gas |
| Installation Type | Indoor |
| Residential ENERGY STAR® | Yes |
| Uniform Energy Factor | 0.9 |
| Energy Factor | 0.93 |
| Domestic Hot Water Flow Rate (Maximum) | 7.5 GPM / (28.4 l/min) |
| SCAQMD Approved | Ultra Low NOx |
Documentation
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Spec Sheet: Condensing Tankless Water Heater- RUCS75i (KCM2528FFU-US)PDF 597KB
Supplemental Spec Sheet: Pipe Cover for Condensing Tankless Water Heaters- White (PN# PCD07-EW)PDF 374KB
UBBINK-PP-SP - VentPDF 667KB -
TROUBLESHOOTING TWH DIAGNOSTIC CODESPDF 2MB -
Installation Manual: KCM Series Tankless Water Heater - RUS/RUCSPDF 7MB -
Water_Heating_Solutions_Consumer_Brochure.pdfPDF 26MB
Water_Heating_Solutions_Trade_Brochure.pdfPDF 33MB
2022107.H - Ground water temperature map update RUCS75i_RUS75e.pdfPDF 316KB
North America Ground WaterTemp Map.v6.editabl_Joy Brim.pdfPDF 1MB -
Tech Bulletin No 115: Condensing Water Heater Combustion Air Intake Pipe Material (TB-115)PDF 230KB
Tech Bulletin No 117: IPEX Concentric Vent Termination (TB-117)PDF 311KB
Tech Bulletin No 121: Activation Flow Rates at Higher Temperatures (TB-121)PDF 308KB
Tech Bulletin No 122: New Condensing Tankless Venting Options (TB-122)PDF 263KB
Tech Bulletin No 130: Battery Backup for Tankless Water Heaters and Home Heating Products (TB-130)PDF 285KB
Tech Bulletin No 150: Understanding EF and UEF (TB-150)PDF 197KB
Tech Bulletin No 165: New Clearances for Twin Pipe Venting Systems (TB-165)PDF 308KB
Tech Bulletin No 167: Control-R Not Compatible with RUCS-RUS KCM Water Heaters (TB-167)PDF 360KB
Tech Bulletin No 172: Rinnai Natural Gas-Hydrogen Fuel Mixture Products (TB-172)PDF 279KB -
System Design Drawing: Rinnai Tankless Single Unit with Air HandlerPDF 719KB
System Design Drawing: Rinnai Tankless Single Unit with Air Handler (CAD format)DWG 435KB
System Design Drawing: Rinnai Tankless Single Unit with Backup StoragePDF 803KB
System Design Drawing: Rinnai Tankless Single Unit with Backup Storage (CAD format)DWG 320KB
System Design Drawing: Rinnai Tankless Single Unit with CirculationPDF 718KB
System Design Drawing: Rinnai Tankless Single Unit with Circulation (CAD format)DWG 403KB
System Design Drawing: Rinnai Tankless Single Unit with Demand Pump CirculationPDF 789KB
System Design Drawing: Rinnai Tankless Single Unit with Demand Pump Circulation (CAD format)DWG 337KB
System Design Drawing: Rinnai Tankless Single Unit with Hydronic HeatingPDF 720KB
System Design Drawing: Rinnai Tankless Single Unit with Hydronic Heating (CAD format)DWG 423KB
System Design Drawing: Rinnai Tankless Single Unit with Hydronic Heating via Plate Heat ExchangerPDF 718KB
System Design Drawing: Rinnai Tankless Single Unit with Hydronic Heating via Plate Heat Exchanger (CAD format)DWG 419KB
System Design Drawing: Rinnai Tankless Single Unit with Solar Backup Option 1PDF 727KB
System Design Drawing: Rinnai Tankless Single Unit with Solar Backup Option 1 (CAD format)DWG 427KB
System Design Drawing: Rinnai Tankless Single Unit with Solar Backup Option 2PDF 725KB
System Design Drawing: Rinnai Tankless Single Unit with Solar Backup Option 2 (CAD format)DWG 447KB
System Design Drawing: Rinnai Tankless Three Unit with Backup StoragePDF 833KB
System Design Drawing: Rinnai Tankless Three Unit with Backup Storage (CAD format)DWG 544KB
System Design Drawing: Rinnai Tankless Three Unit with CirculationPDF 733KB
System Design Drawing: Rinnai Tankless Three Unit with Circulation (CAD format)DWG 902KB
System Design Drawing: Rinnai Tankless Three Unit with Demand Pump CirculationPDF 732KB
System Design Drawing: Rinnai Tankless Three Unit with Demand Pump Circulation (CAD format)DWG 0MB
System Design Drawing: Rinnai Tankless Three Unit with Solar Backup Option 1PDF 741KB
System Design Drawing: Rinnai Tankless Three Unit with Solar Backup Option 1 (CAD format)DWG 1MB
System Design Drawing: Rinnai Tankless Three Unit with Solar Backup Option 2PDF 742KB
System Design Drawing: Rinnai Tankless Three Unit with Solar Backup Option 2 (CAD format)DWG 1MB
System Design Drawing: Rinnai Tankless Two Unit with Backup StoragePDF 818KB
System Design Drawing: Rinnai Tankless Two Unit with Backup Storage (CAD format)DWG 432KB
System Design Drawing: Rinnai Tankless Two Unit with CirculationPDF 725KB
System Design Drawing: Rinnai Tankless Two Unit with Circulation (CAD format)DWG 688KB
System Design Drawing: Rinnai Tankless Two Unit with Demand Pump CirculationPDF 723KB
System Design Drawing: Rinnai Tankless Two Unit with Demand Pump Circulation (CAD format)DWG 689KB
System Design Drawing: Rinnai Tankless Two Unit with Solar Backup Option 1PDF 736KB
System Design Drawing: Rinnai Tankless Two Unit with Solar Backup Option 1 (CAD format)DWG 766KB
System Design Drawing: Rinnai Tankless Two Unit with Solar Backup Option 2PDF 732KB
System Design Drawing: Rinnai Tankless Two Unit with Solar Backup Option 2 (CAD format)DWG 748KB -
Energy Guide - RUCS75iNPDF 893KB -
AHRICertificate-RUCS75iPDF 222KB
Manufacturer's_Certification_Statement_-_Rinnai_2015-2016.pdfPDF 327KB -
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Warranty KCM (SE Series)PDF 339KB
Warranty
| Warranty - Standard for Residential | 12 yrs on Heat Exchanger/ 5 years on Parts/ 1 Year on Labor |
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