Specification

PRINTED IN U.S.A. 06/17 WP FORM NO. RR102C-10 Rev. 5
Water
INTEGRATED HOME COMFORT
Commercial Gas
Universal Low NOx Water Heaters
I N TEGR ATED AIR & WATER
INTEGRATED HOME COMFORT
Features & Benefits
The tighter the commercial retrofit,
the more you will appreciate how the
Universal’s compact size and multiple
water connections simplify low NOx
installations. Choose from 80% thermal
efficiency models that range from
125,000-399,900 Btu/h and have
maximum temperature setting of
180 degrees Fahrenheit.
Space Saver Design
The short heights and narrow jacket
diameters, plus the top, front and rear
water inlets/outlets offer the ultimate in
installation flexibility.
System
Sentinel
™
LED
Diagnostic
System
Our exclusive
diagnostic system,
with glowing LED
lights, verifies system
operation sequence by sequence.
Patented Technology
Universal’s proprietary steel formulation,
patented multi-flue design, combined
with two coats of porcelain enamel,
results in a superior heat exchanger
design.
Low NOx Burner
The power assist burner design
incorporates stainless steel multi-port
burner tubes for long term low NOx
performance, less than 40 ng/J. A sight
glass allows for burner observation.
A blower guard provides protection
against potential post-installation
damage. The entire design is removable
and it is highly resistant to the effects
of negative air pressure common in
modern commercial buildings.
Low Profile Automatic
Flue Damper
Low profile damper minimizes overall
product height. Heavy duty vent hood
supports are designed to withstand the
rigors of installation.
Full-port, Full-flow Drain Valve
Factory installed brass drain valve
allows for faster draining and servicing.
Direct Spark-to-Pilot
Ignition System
Energy saving ignition that ignites pilot
only when there is a call for heat.
Altitude Certifications
Universal low NOx is certified up to
2,000 feet. High altitude certification for
models GN76-200 and GN91-200 is
5,000 feet; and model GN100-200(A)
is 8,000 feet.
Patented Anode Rods
Anode design utilizes multiple
magnesium rods to ensure corrosion
resistance for a long tank life.
Warranty
3-Year limited tank warranty
See Commercial Warranty Certificate for
complete information.
Efficiency | All models tested according to ANSI test
procedures, and meet or exceed the thermal efficiency
and standby loss requirements of ASHRAE standard
(EPact). Also exceeds energy efficiency codes of all
states including California Energy Commission (CEC).
Safety and Construction | Design certified by CSA:
For operation at 180 degrees; meets all safety and
construction requirement of ANSI Z21.10.3; as an
automatic storage or instantaneous water heater; as
an automatic circulating tank water heater; and for
operation on combustible floors and in alcove instal
-
lations. Certified for 150 PSI maximum working
pressure (160 PSI for ASME models).
Optional Construction | ASME construction is
available on designated models.
Universal
™
low NOx is a family of commercial
gas water heaters that are designed to fit
into tight retrofit applications
Rheem
Universal Low NOx
35 to 100-Gallon Capacities
125,000-399,900 Btu/h
Natural Gas
Top-Front-Rear Inlet/Outlet
Water Connections
(On Selected
Models)
RR102C-10Rev5.indd 1 6/28/17 3:00 PM