PRODUCT GUIDE | Commercial Condensing Tankless Water Heaters
CMMERCIAL
TANKLESS SOLUTIONS
Why Rheem® Commercial Tankless?
DELIVERING ENERGY SAVINGS,
FLEXIBILITY & SUPPORT
Introducing a dedicated water heating solution for
businesses with all the Rheem tankless advantages, plus:
• Thermal Efficiency of up to 96%
• 11,000 - 199,900 BTU per unit
• Built-in maximum temperature setting of 185°F
• Common venting options for indoor natural gas models
• Manifold control models for expanding up to
3,998,000 BTU/h systems (20 units linked)
• Service valves included
Rheem Exclusive Advantages
MANIFOLD
CONTROL READY
Models with manifold control
easily connect up to 20 units –
in daisy-chain configuration –
with no additional accessories
needed.
BUILT-IN CONDENSATE
NEUTRALIZER
The acidic byproduct of
combustion can corrode and
damage pipes, but the built-in
condensate neutralizer raises the
pH of this condensate so it can be
safely discharged into the drain.
Options for factory tested, pre-assembled systems
OVERHEAT
FILM WRAP
This safety feature detects
high temperatures in the heat
exchanger and shuts the unit
down – preventing damage and
allowing industry best 1/2"
side-to-side clearance.
PPs VENTING
Rheem polypropylene venting
options from Centrotherm are
the only venting materials in
the industry with UL-1738
and ULC-S636 certifications
for flue temperatures of up
to 230°F.
2PRODUCT GUIDE | COMMERCIAL CONDENSING TANKLESS WATER HEATERS
Additional Features & Benefits
COMMON VENT
COMPATIBLE
Common vent up to ten units
with Rheem polypropylene (PPs)
venting solutions. Venting
multiple units together saves
space and materials and reduces
outside wall penetrations.
SERVICE VALVES
INCLUDED
Every Commercial Tankless unit
ships with service valves, saving
on material costs and making
servicing easier. Installing service
valves allows contractors to
isolate an individual unit for
flushing or maintenance without
shutting down the entire bank of
tankless water heaters.
NEW RHEEM EZ-RACK™ KIT
• Freestanding or wall-mount design
• Each kit can hold up to 2 tankless
units back to back
• Easily assembles on the jobsite in
under 10 minutes
MAINTENANCE
NOTIFICATION SETTING
Proper service and maintenance
leads to a longer life for the water
heater. The Maintenance
Notification Setting can be set by
the contractor during installation
upon request. After 500 hours of
use, the owner is alerted via a
flashing warning code 88 that it is
time to service the unit.
HARD WATER
BUILDUP WARNING
Hard water that can lead to scale
buildup is common in many parts
of the country, and left untreated,
can reduce the unit’s efficiency
and ability to provide hot water.
Our built-in service alert
automatically displays in the
event the water heater detects
scale buildup.
• Expand with additional kits to hold
any number of tankless heaters
3PRODUCT GUIDE | COMMERCIALCONDENSING TANKLESS WATER HEATERS
Rheem® Commercial Series
High Efficiency Tankless Gas Water Heating Solutions
MAXIMUM WATER AND ENERGY SAVINGS,
PLUS KEEPS INSTALL COSTS TO A MINIMUM
LOWER INSTALLATION COSTS
Allows for in-line or back to back common venting of up to 10 units and room
air intake configurations.
12
REDUCED DOWNTIME
39
Having multiple units working together creates redundancy, so if one tankless
6
water heater goes down, your customer’s business stays up and running.
Thermal Efficiency
Venting Type
Unit Dimensions
Unit Weight
Warranty
Ultra Low NOx
High Altitude
CONTROL UP TO
20
TANKLESS
WATER HEATERS
WITH NO ADDED
ACCESSORIES
Up to 96%
Vents with Schedule 40 PVC or PPs
27-1/2" H x 18-1/2" W x 9-3/4" D
82 lbs.
Heat Exchanger: 5 Years
Parts: 5 Year s
Labor: 1 Year
All Natural Gas Models
Up to 8,400 ft.
DescriptionCommercial Tankless
Indoor – Nat. GasRTGH-C95DVLN
Indoor – LP GasRTGH-C95DVLP
Outdoor – Nat. GasRTGH-C95XLN
Outdoor – LP GasRTGH-C95XLP
4PRODUCT GUIDE | COMMERCIAL CONDENSING TANKLESS WATER HEATERS
Commercial Tankless
WITH Manifold Control
RTGH-CM95DVLN
RTGH-CM95DVLP
RTGH-CM95XLN
RTGH-CM95XLP
INDOOR DIRECT VENT
3
Air Intake
(PVC Venting)
2
Exhaust
(PVC Venting)
1
8
5
SAVE TIME
1
PVC Venting Compatible
Vent with 2", 3" and 4" PVC, saving time and money
2
Easy To Service
Access all parts of the heater with just a Phillips-head screwdriver
Built-In Condensate Neutralizer
6
7
4
3
Industry First!
Safely dispose of condensate without extra installation cost
and time
4
Half-Inch Gas Line Compatible up to 24 ft.
Saves money and time on installation to an existing system
5
Freeze Protection
Industry Best!
Ceramic heaters on copper pipes protect from 40ºF to -30ºF,
allowing outdoor installation
Minimum flow rate of .26 GPM and activation flow rate of
.40 GPM ensures hot water in low demand situations
8
Six Stage Modulating Burner
6
Tight control over burner energy efficiency
EcoNet® Enabled
9
All models from 2010 to present can connect
2
to EcoNet mobile app via Tankless EcoNet
Accessory Kit (REWRA630TWH)
8
3
5
7
Manifold-Ready
4
Condensate
Neutralizer
Discharge
Outlet
1
Based on Rheem testing of 1/2" gas line with gas supply of 7" w.c. up to 24'; Installation conditions vary; Consult the Rheem® Use and Care Manual, the Rheem® Gas Piping Facts brochure (TK-GPF-12),
the National Fuel Gas Code (NFPA 54, ANSI Z223.1), and any other local gas codes when installing a Rheem Tankless Water Heater.
3/4" Hot
Water
Outlet
External
Connection
for Remote
Control Cable
3/4" Cold
Water
Inlet
3/4" Gas
Connection
10
Models with manifold control easily connect up to 20 units
with no additional accessories required
5PRODUCT GUIDE | COMMERCIAL CONDENSING TANKLESS WATER HEATERS
Rheem® Commercial Tankless System
This custom-built solution arrives on the jobsite factory-assembled
with single point connections including:
COMING
SOON
• RTGH-CM95 Condensing Tankless
Water Heaters
• Factory installed system control
manifold
• Pre-sized water and gas manifold
• Electrical wiring
• Condensate lines
CONFIGURATIONS
• Wall mounted system
• Wall hung system
• Free-standing system
SYSTEM OPTIONS
• 2-6 tankless units per system
ENGINEERED SOLUTION BY RHEEM
• Scalable from 11,000 BTU/h to 1,199,400 BTU/h
in one system
• Multiple configurations
• Options for future expansion
INSTALLATION SAVINGS
• Reduce installation costs with single point
connections
6PRODUCT GUIDE | COMMERCIAL CONDENSING TANKLESS WATER HEATERS
*These models offered in LP, switch N for P in model number.
7PRODUCT GUIDE | COMMERCIAL CONDENSING TANKLESS WATER HEATERS
Commercial Tankless Venting
COMMON VENTING SOLUTIONS
Up to ten Rheem® Commercial Condensing Tankless Water
Heaters can be in-line or back-to-back common vented using
Rheem polypropylene (PPs) header kits and extension pieces.
Common venting saves space and materials
while reducing outer wall penetrations.
Polypropylene is lightweight, assembles quickly, and doesn’t
require glues or solvents to connect. It also meets UL-1738
and ULC-S636 certifications.
Note: If heaters are common vented, you can still manifold
up to 20 units in a bank, however, you must limit the venting
cascade to 10 units.
PPS IS
28%
THE WEIGHT OF PVC
THAT’S
77.8 LB
LIGHTER
FOR 20FT OF
8" TRUNK LINE!
Easy to Install
• Gasketed, push-fit connection system installs quickly/easily –
No glues, primers or solvents required
• Directional gasket and flow arrows ensure proper vent layout
• Connector ring installs where needed, in seconds ensuring
UL-1738 & ULC-S636 compliance
• Venting parts can be field cut to length to meet any venting
requirement
Note: Temperature values in table represent exhaust flue temperatures. For approximate max.
water set point temperatures, subtract 20 degrees F.
PPs
ü
ü
ü
32°F (0°C )
248°F (120°C)
ü
ü
ü
PVCCPVC
XX
XX
XX
50°F (15°C )
149°F (65°C)
XX
XX
XX
50°F (15°C )
194°F (90°C)
Tested and Approved by Rheem
• Tested and Listed by Intertek to UL-1738 & ULC-S636 for
temperatures of -4°F to 230°F
• Zero clearance to combustibles in all applications
• All products are UV rated
• LEED friendly
• 100% Recyclable
% of
Diameter
3"23%0.321.412.09
4"33%0.662.013.05
6"40%1.423.535.82
8"28%1.5 05.398.83
10"27%2.007. 5 513.0 9
Centrotherm
PPs weight
vs. PVC
Centrotherm
Weight Per Foot (lbs.)
PPs
PVC Sch. 40CPVC Sch. 80
8PRODUCT GUIDE | COMMERCIAL CONDENSING TANKLESS WATER HEATERS
Rheem® Commercial Tankless Common Venting
Header kits include all required venting pieces to connect multiple units. Additional vent run accessories are required to complete
installation. Common venting header kits are available for inline or back to back installations, direct vent or room air intake
options, using 6”, 8” and 10” trunk diameters.
9PRODUCT GUIDE | COMMERCIAL CONDENSING TANKLESS WATER HEATERS
Rheem® Parts & Accessories
NEW EZ-RACK™ KIT
RTG20304
• Easy wall mount or free-standing configurations
• Each EZ-Rack Kit holds 1-2 units
• Expands with additional kits to hold any number of units
• Assembles easily on the jobsite in under 10 minutes
Image depicts three EZ-Rack™ Kits mounted together. EZ-Rack™ Kits
sold individually.
SEE
TANKLESS
PARTS
& ACCESSORIES
CATA LOG FOR
MORE
Cosmetic Pipe Covers
These cosmetic pipe covers enhance the installation of the
water heater and provides protection from tampering and
we ath e r.
• RTG20227 - Fits RTGH Series Indoor or Outdoor
Condensing Models
• RTG20217DVG - Fits RTG DV Series Indoor Tankless
Models
• RTG202 17XG - Fits RTG X Series Outdoor Tankless
Models
Outdoor Recess Box
These allow you to mount an outdoor tankless into the
wall, flush with the outside of the home. They are weather
resistant and can be locked for security.
• RTG20226 - Fits RTGH X Series Outdoor Condensing
Models
• RTG20218 - Fits RTG X Series Outdoor Tankless Models
• RTG20253 - For Stucco Applications - Fits RTGH X Series
Outdoor Condensing Models
Flush Kit
The Tankless Flush Kit connects to the ser vice valves for an
easy way to flush and de-scale your tankless water heater.
• RTG2 0214 - Includes pump, hoses and 5-gallon bucket
AllClear™ Water Treatment System
Combat hard water and scale build up for use with
1-2 unit systems.
• RTG20251 - AllClear
• RTG20252 - Replacement Cartridge
™
Water Treatment System
Service Valves (Included )
Webstone®-Brand Tankless Service Valves
• RTG20220AB - Clean Brass for Low Lead Code -
Includes cold and hot water set and pressure relief valve
Upgrade single Rheem tankless water
heaters to have EcoNet connected
features. For multi-unit systems, a
Translator Kit is required for each
additional unit. (includes translator kit,
WiFi module kit and leak detection kit)
EcoNet® Tankless Translator Kit
•PD415188
Each tankless water heater requires a
translator to work with EcoNet. Can be
used in addition to Tankless Translator
& WiFi Module Kit for multiple tankless
unit installations. (includes translator, leak
detection kit and connection cables)
EcoNet® Tankless WiFi Module Kit
•PD415189
Upgrade Tankless systems already
containing Manifold Translator. One WiFi
Module is required for each tankless
system, not per tankless unit (includes WiFi
module, connection cable and power cord)
EcoNet® Leak Detection Kit
•PD415190
Can be connected to built-in Manifold Translator
in Commercial Tankless models to add leak
detection features. Indoor models ONLY (includes
leak detection sensor and harness)
RJ25 Communication Cables
•RCPN-AMP03-0013111101-0002 - 72 in. Long
•RCPN-AMP03-0013111101-0003 - 48 in. Long
•RCPN-AMP03-0013111101-0004 - 240 in. Long
Protech™ Service Kit
Designed with the
contractor in mind,
provide all the basic parts
necessary for a complete
repair of a Rheem tankless
gas water heater.
• PROTECH PD966351 -
Condensing Models
10PRODUCT GUIDE | COMMERCIAL CONDENSING TANKLESS WATER HEATERS
Tankless Multi-Unit Flow Rates
Number of Heaters in a Manifold
By manifolding up to twenty commercial tankless water heaters together in a system, businesses can produce up to 190 gallons
of hot water per minute. Use the chart below to determine the expected gallons per minute (GPM) based on the number of units
connected and temperature rise requirements.
Total System Gallons Per Minute (GPM) - Per Temperature Rise (∆T)
Tankless Multi-Unit Flow Rate Curve
190 GPM
150 GPM
100 GPM
50 GPM
30 GPM
20 GPM
16 GPM
12 GPM
0.4 GPM
Delta - T
35F
50F
70F
100F
140F
8 GPM
6 GPM
4 GPM
2 GPM
120234567 89 10 12 14 16 18
H
AC™ Rooftop Unit Featuring
2
™
eSync
Integration Technology
Our Integrated Air & Water System is the first and only system of its kind—
™
and available exclusively from Rheem. Our eSync
Integration Technology
brings a new level of savings and efficiency to full-service restaurants and
other businesses by using heat that is normally rejected into the
atmosphere to heat water.
With the highly efficient Integrated Air and Water System,
you will experience:
• Lowest cooling and water heating operational
costs available
• Up to 50% savings on your annual water heating costs
ON YOUR ANNUAL
WATER HE ATI N G
• Up to 20% savings on your annual energy costs
• Less than a two-year payback
• Reduced energy footprint
• System contributes to your environmental initiatives
• One-source provider for air and water solutions
• Trusted Rheem quality and reliability
Visit www.rheem.com/h2ac/ for more information.
UP TO
%
50
SAVINGS
COSTS
11PRODUCT GUIDE | COMMERCIAL CONDENSING TANKLESS WATER HEATERS
Sizing Solutions
SIZE IT YOURSELF WITH EZ-SPEC™
Regardless of the commercial application, our advanced and highly accurate EZ-Spec™ Tankle s s
sizing tool can assist in choosing the right model, number of units and accessories needed for a
tankless installation.
GET IT SIZED BY RHEEM
Rheem Applications Engineers offer professional sizing and selection services. Provide project
details and let our engineers deliver a personal consultation to help with the perfect water heating
solutions for commercial projects. Our Tankless Support Team and Applications Engineer are
available to support sizing requests and troubleshooting.
Rheem Partnership
ONE-STOP COMMERCIAL SHOP,
DEDICATED SUPPORT SERVICES
Count on Rheem Commercial for dedicated, personalized service
and system solutions to meet all your business customers’ water
heating needs. Our Applications Engineers, sales and service teams
are true partners committed to providing concierge-level service for
all commercial applications. We also offer easy access to product
specs, Revit
For questions, call our Tankless Support Team at 1-866-720-2076.
®
files, piping diagrams and more online.
®
CONTACT US
Customer Service, Warranty, Parts ............................800-621-5622