Richmond RMTG70DVLN-3 Water Heaters Instruction Manual
- June 13, 2024
 - RICHMOND
 
Table of Contents
Richmond RMTG70DVLN-3 Water Heaters

Product Information
The Richmond Water Heaters are available in both indoor and outdoor models.
They have a gas input rate ranging from 11,000 BTU/h to 199,900 BTU/h. The
water heaters have a uniform energy factor (UEF) of 0.82 and a maximum gallons
per minute (GPM) flow rate of 9.5. They are equipped with built-in LeakGuardTM
technology and meet the Ultra Low NOx requirements.
The water heaters have a heat exchanger made of copper and provide freeze
protection. They come with a warranty of 15 years for the heat exchanger, 5
years for parts, and 1 year for labor. The dimensions of the water heaters
vary depending on the model.
Product Usage Instructions
Installation:
- Choose the appropriate Richmond Water Heater model based on your needs.
 - Ensure that you have the necessary clearances for installation (refer to the manual for specific clearances).
 - If installing an indoor model, connect the water heater to a gas supply using a 3/4 NPT gas connection.
 - If installing an outdoor model, ensure proper ventilation using UL-approved Category III Stainless Steel vent materials or water heater manufacturer-approved vent material.
 - Mount the water heater using the included hanging bracket.
 - Connect the hot water and cold water pipes to the water heater using 3/4 NPT connections.
 - Connect the power supply to the water heater (120V 60Hz).
 
Usage:
- Set the desired temperature using the controls on the water heater or the included external remote.
 - The water heater will start heating when there is a minimum activation flow of 0.4 GPM.
 - For continuous hot water supply, ensure a minimum continuous flow of 0.26 GPM.
 - If needed, the high-temperature upgrade is available (refer to the manual for instructions).
 - Monitor the built-in digital display for temperature and other information.
 
Maintenance:
- Regularly check for any leaks or malfunctions.
 - Keep the area around the water heater clear for easy access and servicing.
 - Follow the recommended venting and clearance guidelines for safe operation.
 - If any issues arise, refer to the troubleshooting section in the manual or contact customer support.
 
EASY INSTALLATION
- Industry Leading! 43′ vent run capability
 - Enhanced design up to 10% smaller to fit in even more places than before
 - Enhanced design up to 22% lighter making one-person installs even easier
 
READY FOR RETROFITS
- Industry Best! 1/2″ side to side clearance allows you to safely work in spaces the competition can’t
 - 1/2″ Gas line compatibility (subject to local code)
 - Universal Venting Compatibility with UBBINK, Metal Fab, and Rainbow venting for easier tankless to tankless replacements
 
KEY FEATURES
- Richmond® Exclusive! Hot-start Programming™ ensures the unit is in a ready state between back-to-back usage, minimizing any cold water bursts
 - Built-in EcoNet® Wi-Fi technology for direct control from your device (on select models)
 - LeakGuard® – All-inclusive leak detection and prevention system that detects any leak that comes from the unit (on indoor Wi-Fi models)
 
SPECIFICATIONS
__
Richmond Model Number
| |  INDOOR| | |  OUTDOOR|
---|---|---|---|---|---|---
RMTG- 70DVLN-3| | |  RMTG- 70XLN-3|  RMTG- 84XELN-3
(Wi-Fi Model)
| RMTG- 95XELN-3
(Wi-Fi Model)
Built-in LeakGuard ™ **Model Number| | RMTG- 84DVELN-3**
(Wi-Fi Model)
| RMTG- 95DVELN- 3
(Wi-Fi Model)
|
Gas Input Rate (BTU/h)|  MAX|  160,000| 180,000| 199,900| 160,000|
180,000| 199,900
MIN|  11,000| 11,000| 11,000| 11,000| 11,000| 11,000
Uniform Energy Factor (UEF)|  0.82
Gallons Per Minute (GPM)|  MAX (35°F)|  7.0| 8.4| 9.5|
7.0| 8.4| 9.5
45°F Rise|  6.0| 6.7| 7.4| 6.0| 6.7| 7.4
67°F Rise|  4.5| 5.1| 5.0| 4.5| 5.1| 5.0
Number of Bathrooms 1|  2.5| 3| 3.5| 2.5| 3| 3.5
Temp. Range|  100°F – 140°F
Temp. Setting from Factory|  120°F
High Temp. Upgrade Available|  No
Freeze Protection|  -30°F Air Intake2, -4°F Ambient
Heat Exchanger Material|  Primary: Copper
Minimum Activation Flow|  0.4 GPM
Minimum Continuous Flow|  0.26 GPM
Maximum Altitude|  7,800 ft.
Ultra Low NOx|  Meets 14 ng/J NOx requirements – SCAQMD Rule
1146.2 compliant
Warranty|  15 Year Heat Exchanger | 5-Year Parts | 1-Year Labor
Height|  24.2″| 20.75″
Width|  13.5″| 13.5″
Depth|  10.27″| 9.4″
Weight (Lbs.)|  46.5| 42
Venting Diam. Allowed|  3″ by 5″CONCENTRIC| N/A
Max. Single Vent Run (straight pipe)|  43 ft.| N/A
Approved Venting Manufacturer|  Metal Fab, Rainbow, UBBINK
Manifold Controls (max. units)|  6 Units3
Controls|  Built-in digital display| External Remote (Included)
Power Supply|  120V 60Hz
__
Max. Power Consumption
|  85W (Normal use), 0.7 Amps 132W (Antifreeze), 1.1 Amps 3.5W (Standby), 0.03
Amps4
Gas Connection|  3/4″ NPT
Hot Water Connection|  3/4″ NPT
Cold Water Connection|  3/4″ NPT  
All models are available in Natural Gas or Propane (LP). For Propane replace the N with P for LP model.
RMTG-Series Models Indoor & Outdoor Models 11,000-199,900 BTU/h Natural Gas
and Liquid Propane Models
Swap P for N in model number for Liquid Propane model
Clearances
Top / Bottom|  12″
Front|  1/2″5
Sides|  1/2″
Back / From Vent Pipe|  0″  

Based on simultaneous showers using 2.5 GPM flow rate pre-mixed with cold water line. Flow rates vary depending on temperature of incoming cold water and water heater set temperature. Refer to flow rate curves for accurate sizing. 2 For indoor application, this is the temperature of outdoor intake air. 3 Manifolds with standard RJ11 communication cables. 4 If anti freeze is on and combustion is on, total W will be 217W (85+132). 5 Recommended 24″ clearance for service.
WATER HEATER FLOW RATE CURVES

Water Flow (GPM)
VENTING
SINGLE UNIT: MAX. EQUIVALENT VENT LENGTHS – STRAIGHT PIPE
Number of 90 Elbows| __
Max Length 3″ / 5″ straight pipe
0| 43 ft. (13.1 m)
1| 41.5 ft. (12.6 m)
2| 38.5 ft. (12.2 m)
3| 34 ft. (11.7 m)
4| 28 ft. (11.3 m)
5| 20.5 ft. (10.8 m)
6| 11.5 ft. (10.4 m)
Equivalent Ft. of Elbows  
|  3″/5″
90° Elbow|  1.6 ft.
45° Elbow|  9 in.
Min. Vent Length Straight Pipe  
Number of 90° Elbows|  Min. Length 3″/5″ pipe
1| 1.0 ft (0.3 m)  
Venting Materials Allowed: 3-in./5-in. (7.6-cm/12.7-cm) UL-approved Category
III Stainless Steel vent materials or water heater manufacturer-approved vent
material (MetalFab, UBBINK, and Rainbow)
Hanging bracket and pressure relief valves are included with water heater
INDOOR DIRECT VENT
 
 
 
PARTS & ACCESSORIES

In keeping with its policy of continuous progress and product improvement,
Richmond reserves the right to make changes without notice.
Richmond Water Heaters • 1115 Northmeadow Parkway, Suite 100, Roswell, Georgia
30076
© Rheem Manufacturing Company • 06/23 • FORM NO. RMTG Series
RichmondWaterHeaters.com
References
Read User Manual Online (PDF format)
Read User Manual Online (PDF format) >>