Model NRC661A Series
Residential Condensing Tankless Water Heater
Specification Sheet
•Standard Input- Gas consumption ranges from 15,000 BTUh to 120,000 BTUh
•Capacity Range- Flow rates from 0.5 GPM up to 6.6 GPM
•Compact Design- ANSI Z21.10.3/CSA 4.3 certified design that can be wall-mounted outdoors.
•Durable Steel Casing with Polyester Coating
•Venting Options - Available as an Outdoor (requires no venting) or indoor Direct Vent (-DV) model which includes special plastic flue adapters that are compatible with both 3” Schedule 40 and 80 PVC/CPVC pipe.The DV model can be converted to a non-direct vent (SV) model with the use of a conversion Kit (#SV-CK-3)
•Direct Electronic Ignition
• Energy Factor- 0.95(NG) 0.96(LP) |
OD Model |
DV Model |
•Thermal Efficiency - Fully condensing, 93% efficient for use with natural gas or propane
•Temperature Controls - Includes built in display that can preset the output temperature to either 120°F, 135°F, or 140°F
•Power Cord Installation Kit - 6’ power cord is included with -DV models only
•Safety Devices- Flame Sensor, Overheat Prevention Device, Lighting Protection Device, Freeze Protection, Condensate Overfill, Fan Rotation Detector
•Additional Features - Temperature Lockout, High Elevation Adjustment, Built-in display window
•12-Year* Limited Heat ExchangerWarranty for Standard Residential Use
•5-Year Limited PartsWarranty
•1-Year Reasonable LaborWarranty
•Approvals- CSA, UPC**, NSF, Low NOx Approved by SCAQMD [<14ng/j or 20ppm]
LOW-LEAD
CERTIFIED
R
NRC661A____
OD (Outdoor Vent)
DV (Direct Vent)
Horizontal Hood Termination (#PVT-HL)
3” PVC Termination (#VK3-H-PVC)
Birdscreen for 3” PVC/CPVC (#VT3-PVCS)
Condensate Neutralizer (#NC-1)
Isolation Valves (#IK-WV-200-1(-LF))
SV Conversion Kit (#SV-CK-3)
Outdoor Recess Box (#RB-510)
Remote Controller (#RC-7651M)
Remote Controller Cord (#RC-CORD10)
Remote Controller Cord (#RC-CORD26) 
Pipe Cover (#PC-1S)
*12 Years replacement on the heat exchanger when the product is used in a single family dwelling. 3 Years replacement on heat exchanger when the product is used for commercial capacity, if it is used in other than a single family dwelling, or if the product is supplied with pre-heated or circulated water (an aquastat being the minimum pump control requirement). Refer to the Noritz Limited Warranty for complete coverage details.
** This product complies with California AB 1953 Low Lead Law and Section 1417(d) of the Safe Drinking Water Act.
NORITZ AMERICA CORPORATION
11160 Grace Avenue, Fountain Valley, CA 92708 Tel. 1-866-7NORITZ www.noritz.com
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