Specification Sheet

- gas consumption ranges from 15,000 BTUh to
120,000 BTUh
- flow rates from 0.5 gpm up to 6.6 gpm
- ANSI Z21.10.3/CSA 4.3 certified design for indoor wall-mounting
- Indoor Venting Only. N-FlexKit (included) is designed for the
Installation inside of B-Vent as sleeve.
- 0.91 (NG) 0.91 (LP)
- includes built in display that can preset the output
temperature to either 120°F, 135°F, or 140°F
- 6’ power cord is included and attached
- Flame Sensor, Overheat Prevention Device,
Lightning
Protection Device, Freeze Protection, Condensate Over
fill, Fan Rotation Detector
Temperature Lockout, High Elevation Adjustment
- CSA, UPC**, NSF, Low NOx Approved by SCAQMD [<14ng/J or 20ppm]
* Heat Exchanger warranty is maintained at 12 years or 6500 operational hours, whichever occurs first, when used in a single family dwelling in conjunction with a
controlled recirculation system (an aquastat being the minimum pump control requirement) in accordance with the Installation Manual. Refer to the Noritz Limited
Warranty for complete coverage details
** This product complies with California AB 1953 Low Lead Law
Model NRC663-FSV (EZTR40) Series
Residential Condensing Tankless Water Heater
Specification Sheet
NORITZ AMERICA CORPORATION
11160 Grace Avenue, Fountain Valley, CA 92708 Tel. 1-866-7NORITZ www.noritz.com
NRC663-FSV - ____
Isolation Valves (#IK-WV-200-1(-LF))*
Condensate Neutralizer (#NC-1)
Vent Kit (#N-FlexKit2”-35)*
*Included In Box with EZTR40
Remote Controller (#RC-7651M)
Remote Controller Cord (#RC-CORD10)
Remote Controller Cord (#RC-CORD26)
LOW-LEAD
• 12-Year* Limited Heat Exchanger Warranty for Residential Use
• 5-Year Limited Parts Warranty
NRC663-FSV