Specification Sheet

- gas consumption ranges from 16,000 BTUh to
199,900 BTUh
- flow rates from 0.5 gpm up to 9.8 gpm
- ANSI Z21.10.3/CSA 4.3 certified design that can
be wall-mounted indoors (-SV and -DVC models only) or installed
outdoors with an -OD model
- manufactured with commercial grade copper,
25% thicker piping than standard models
- available in Power Vent (-SV), Outdoor (-OD),
or Concentric Direct Vent (-DVC) model that requires either 4”
Category III or 5“/3” Noritz concentric stainless steel pipe
- two identical units can be linked together by using
the optional Quick Connect Cord (#QC-2) for twice the hot water capacity
- 0.82 (NG) 0.88 (LP) for all NR981 Series models
- 84% efficient for use with natural gas or propane
- includes remote thermostat that can precisely
adjust the output temperature from 100°F to 140°F with the capability to
display temperatures in both °C and °F
- 6’ power cord is included with -SV and
-DVC models (assembly required for SV models)
- Flame Sensor, Overheat Prevention Device,
Lightning Protection Device, Freeze Protection
Temperature Lockout, High Elevation Adjustment,
Service Reminder Function
- CSA, UPC**, NSF, Low NOx Approved by SCAQMD [<14ng/J or 20ppm],
Suitable for Installation in a Manufactured (Mobile) Home***
* 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
*** Manufactured (Mobile) Home approval is valid for OD or DVC models only
CERTIFIED
R
Model NR981 Series
Residential Tankless Water Heater
Specification Sheet
NORITZ AMERICA CORPORATION
11160 Grace Avenue, Fountain Valley, CA 92708 Tel. 1-866-7NORITZ www.noritz.com
SV (Standard Vent)
OD (Outdoor Vent)
NR981 - _____
SV Model OD Model
Recess Box for OD Model (#RB-700-1)
Pipe Cover for SV/OD Model (#PC-2S)
Isolation Valves (#IK-WV-200-1)
LOW-LEAD
Outdoor Vent Cap for SV Model (#VC-4-1)
DVC Model
DVC (Concentric Direct Vent)
Quick Connect Cord (#QC-2)
Pipe Cover for DVC Model (#PC-5S)