CU199iN CU Model Series

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Commercial condensing tankless water heater CU199iN from Rinnai is precision engineered to provide endless hot water for the most demanding of applications such as restaurants, hospitality, education institutions, multifamily residential buildings and more. CU199iN is designed for indoor installation, natural gas fuel, is WiFi ready to monitor performance across multiple units to ensure up time is maintained. Multiple venting options offer installation flexibility to meet your existing layout or for new build optimization.

97% Thermal Efficiency
15,000 BTU (minimum)
199,000 BTU (maximum)
Warranty

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: Commercial condensing tankless water heater CU199iN from Rinnai is precision engineered to provide endless hot water for the most demanding of applications such as restaurants, hospitality, education institutions, multifamily residential buildings and more. CU199iN is designed for indoor installation, natural gas fuel, is WiFi ready to monitor performance across multiple units to ensure up time is maintained. Multiple venting options offer installation flexibility to meet your existing layout or for new build optimization.
: Supply Connections

Connection Connection Size

Gas 3/4" MNPT / (19 mm)

Cold Inlet 3/4" MNPT / (19 mm)

Hot Outlet 3/4" MNPT / (19 mm)

Condensate Drain 1/2" NPT / (13 mm)
: Product Depth 11.45 in / (290 mm)

Product Height 31.3 in / (795 mm)

Product Width 18.5 in / (470 mm)

Product Weight 64 lb / (29 kg)

Gas Type Natural Gas

Recirculation Capable Yes

Domestic Hot Water Flow Rate (Maximum) 11 GPM / (41.6 l/min)

Wi-Fi Capable Yes

SCAQMD Approved Ultra Low NOx

Warranty information is available in the Installation & Owner Manual.
: Browse product manuals, spec sheets, and other documentation below.

Language

Document Type

0 documents

100000313 OPU Instructions-English and French

PDF 3 MB

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100000887-Polypropylene Common Venting Installation Instructions-Version H_FRE

PDF 6 MB

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100000921 PVC and CPVC Common Venting Installation Instructions for SENSEI-SPANISH

PDF 2 MB

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100000437-N-Series Conversion Manual

PDF 2 MB

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100000437-SENSEI Conversion Manual

PDF 3 MB

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CU199iN

PDF 888 KB

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100000504-N Series Commercial Condensing Installation and Operation Manual

PDF 8 MB

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100000504-N Series Commercial Condensing Installation and Operation Manual-French

PDF 8 MB

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100000504-N Series Commercial Condensing Installation and Operation Manual-Spanish

PDF 8 MB

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100000557-Sp Polypropylene Common Venting Installation Instructions-Version H_SPANISH

PDF 6 MB

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100000573-SENSEI Demand Duo Retrofit Installation Instructions

PDF 1 MB

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100000625-PVC and CPVC Common Venting Installation Instructions for SENSEI

PDF 2 MB

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100000923 Troubleshooting TWH Diagnostic Codes-French

PDF 2 MB

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100000924 Troubleshooting TWH Diagnostic Codes-Spanish

PDF 2 MB

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BMS Installation and Operation Manual English

PDF 10 MB

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Commercial Water Heating Solutions - RE/REP/CU/RSC

PDF 4 MB

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Commercial WH Solutions Brochure_Installers

PDF 6 MB

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US Sensei to Sensei RX Cross-reference

PDF 1 MB

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100000579(01)-CU199i-N Engineering Specification

PDF 263 KB

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CUi- SP - FR

PDF 1 MB

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N Series Condensing Commercial Indoor Spec Sheet English - CU Models

PDF 555 KB

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SP-TRS spec sheet

PDF 4 MB

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Tankless Rack System Specification Sheet English

PDF 4 MB

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Announcing IPEX System 1738 PVC Approval Technical Bulletins English

PDF 294 KB

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TB-146 Connect Control-R Wi-Fi Module to SENSEI Water Heaters

PDF 756 KB

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TB-154 External Recirculation Pump Wire Harness For SENSEI Models

PDF 434 KB

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TB-156 GTK15 Recirculation Pump with SENSEI Water Heaters

PDF 637 KB

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TB-159 SENSEI CSA Certification and ULC S636 PVC Venting

PDF 225 KB

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TB-163 New Isolation Valve Design for Tankless Water Heaters

PDF 517 KB

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TB-166 Updates to PC Board Ignition Sequence

PDF 259 KB

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TB-172 Rinnai Products With Natural Gas-Hydrogen Mixture Fuels

PDF 279 KB

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TB-174 SENSEI Version 6 Software Updates

PDF 495 KB

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TB-179 Tankless Incompatibility with Rinnai BMS Gateway

PDF 374 KB

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TB-188 Optimized Flushing Procedure for SENSEI Tankless Water Heaters

PDF 254 KB

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TB-201 Cascade System with CX and CU Models

PDF 381 KB

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100000505-SENSEI Tech Sheet-Residential and Commercial

PDF 4 MB

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Next Gen Check Sheet English

PDF 1 MB

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TWH Troubleshooting Technical Data Sheet

PDF 2 MB

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U334-0781X01(01)-100000505(01)-N-Series Techsheet-Res and Comm

PDF 4 MB

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CHS199-2-CV

PDF 1 MB

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CHS199-6-HT

PDF 831 KB

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CHS199-7-CIRC

PDF 844 KB

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CHS199-8-CIRC

PDF 741 KB

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CWH-2-CL

CAD 1 MB

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CWH-2-RUR

CAD 707 KB

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CWH-3-CL

PDF 734 KB

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CWH-3-RUR-CO

CAD 0 MB

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CWH1-D

CAD 247 KB

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TRSCU-IL2BB4-CIRC

PDF 0 MB

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TRSCU-IL6BB12-BC2

PDF 1 MB

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TRSCU-IL6BB12-CIRC

PDF 1 MB

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TRSCU-IL7-CIRC

PDF 1 MB

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TRWST-2-CO

CAD 1 MB

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WH-1-BC

PDF 803 KB

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WH-1-BC

CAD 320 KB

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WH-1-CD

CAD 337 KB

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WH-1-CD

PDF 789 KB

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WH-1-CIRC

PDF 718 KB

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WH-1-CIRC

CAD 403 KB

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WH-2-BC

PDF 818 KB

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WH-2-BC

CAD 432 KB

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WH-2-CD

PDF 723 KB

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WH-2-CD

CAD 689 KB

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WH-2-CIRC

PDF 725 KB

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WH-2-CIRC

CAD 688 KB

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WH-3-BC

CAD 544 KB

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WH-3-BC

PDF 833 KB

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WH-3-CD

PDF 732 KB

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WH-3-CD

CAD 0 MB

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WH-3-CIRC

CAD 902 KB

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WH-3-CIRC

PDF 733 KB

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WH1-AH

CAD 435 KB

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WH1-AH

PDF 719 KB

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WH1-HX

CAD 419 KB

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WH1-HX

PDF 718 KB

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WH1-S-1

CAD 427 KB

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WH1-S-1

PDF 727 KB

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WH1-S-2

PDF 725 KB

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WH1-S-2

CAD 447 KB

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WH1-SH

CAD 423 KB

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WH1-SH

PDF 720 KB

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WH2-S-1

CAD 766 KB

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WH2-S-1

PDF 736 KB

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WH2-S-2

CAD 748 KB

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WH2-S-2

PDF 732 KB

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WH3-S-1

PDF 741 KB

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WH3-S-1

CAD 1 MB

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WH3-S-2

PDF 742 KB

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WH3-S-2

CAD 1 MB

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100000806 CU199 and CU160 Commercial TWH Submittal Form

PDF 1 MB

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100001002_Warranty_SENSEI Commercial-French

PDF 253 KB

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100001003_Warranty_SENSEI Commercial-Spanish

PDF 237 KB

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Sensei Commercial Warranty - English

PDF 228 KB

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Connection	Connection Size
Gas	3/4" MNPT / (19 mm)
Cold Inlet	3/4" MNPT / (19 mm)
Hot Outlet	3/4" MNPT / (19 mm)
Condensate Drain	1/2" NPT / (13 mm)

Product Depth	11.45 in / (290 mm)
Product Height	31.3 in / (795 mm)
Product Width	18.5 in / (470 mm)
Product Weight	64 lb / (29 kg)
Gas Type	Natural Gas
Recirculation Capable	Yes
Domestic Hot Water Flow Rate (Maximum)	11 GPM / (41.6 l/min)
Wi-Fi Capable	Yes
SCAQMD Approved	Ultra Low NOx

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Commercial condensing tankless water heater CU160iN from Rinnai is precision engineered to provide endless hot water for the most demanding of applications such as restaurants, hospitality, education institutions, multifamily residential buildings and more. CU160iN is designed for indoor installation, natural gas fuel, is WiFi ready to monitor performance accross multiple units to ensure up time is maintained. Multiple venting options offer installation flexibility to meet your existing layout or for new build optimization.

Learn more

CU199iN CU Model Series

Supply Connections

Compatible Accessories

CU160iN