Rheem RTG-70DVLN-3 High Efficiency Non Condensing Tankless Gas Water Heaters Owner’s Manual

Rheem RTG-70DVLN-3 High Efficiency Non Condensing Tankless Gas Water

Heaters

Product Specifications

• Key Features: Residential Gas RTG Series Tankless Water Heaters
• Gas Input Rate (BTU/h): 11,000 (MIN) – 199,900 (MAX)
• Uniform Energy Factor (UEF): 0.82 – 9.5
• Flow Rate: 6.0 – 7.4 GPM
• Number of Bathrooms: 2-4
• Heat Exchanger Material: Primary – Copper
• Minimum Activation Flow: 0.4 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 inches
• Width: 13.5 inches
• Depth: 10.27 inches
• Weight: 46.5 lbs.
• Venting Diam. Allowed: 3 by 5 CONCENTRIC
• Power Supply: 120V 60Hz
• Gas Connection: 3/4 NPT
• Hot Water Connection: 3/4 NPT
• Cold Water Connection: 3/4 NPT

Product Usage Instructions

Installation

1.  Ensure proper venting according to the approved materials mentioned in the manual.
2. Connect the gas supply line using a 3/4 NPT connection.
3. Connect the hot and cold water lines using 3/4 NPT connections.

Operation

1.  Power on the unit using a 120V power supply.
2. Set the desired temperature using the built-in digital display or external remote control.
3. Ensure proper flow rate for activation and continuous usage.

Maintenance

1. Regularly check for any leaks or abnormal operation.
2. Flush the unit periodically to remove any sediment buildup.

Frequently Asked Questions (FAQ)

• Q: Can all models be used with both Natural Gas and Propane?
  A: Yes, all models are available in Natural Gas or Propane. For Propane models, replace the N with P in the model number.

• Q: What is the warranty coverage for the product?
  A: The product comes with a 15-year warranty on the heat exchanger, a 5-year warranty on parts, and a 1-year warranty on labor

Water
Residential Gas RTG Series Tankless Water Heaters

Rheem® RTG Series High Efficiency Non-Condensing Tankless Gas Water Heaters

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 up to 24 ft (subject to local code)
• Universal Venting Compatibility with UBBINK, Metal Fab, and Rainbow venting for easier tankless to tankless replacements

Key Features

• Rheem® 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

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
Hot Water Flow Rate Capacity – 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| 4.1| 4.5| 5.0| 4.1| 4.5| 5.0
Number of Bathrooms 1| 2-3| 3| 3-4| 2-3| 3| 3-4
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.

RTG 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 2.0 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 9 zone ground water temperature map 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.

U.S. Ground Water Temperature Zone Map

Average Flow Rates (GPM) by Application

Flow rates may vary.
Flow Rate Capacity Table by Zone (Gallons Per Minute – GPM)
Use the U.S. Ground Water Temperature Map to locate your zone. Then use the Flow Rate Capacity Table to determine model flow rate by zone. Flow rates calculated for tankless set temperature of 120°F with a mixed shower temperature of 105°F. Ground water temperatures vary seasonally.

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)
Min. Vent Length Straight Pipe

Number of 90° Elbows| Min. Length 3″/5″ pipe
1| 1.0 ft (0.3 m)
Equivalent Ft. of Elbows

| 3″/5″
90° Elbow| 1.6 ft.
45° Elbow| 9 in.

Hanging bracket is included with water heater.

Parts & Accessories

In keeping with its policy of continuous progress and product improvement, Rheem reserves the right to make changes without notice.

• Rheem Water Heating • 1115 Northmeadow Parkway, Suite 100 Roswell, Georgia 30076
  • www.rheem.com 
• Rheem Canada Ltd./Ltée • 125 Edgeware Road, Unit 1 Brampton, Ontario L6Y 0P5
  • www.rheem.ca
• INTEGRATED HOME COMFORT

References

• Rheem Canada – The Leader in Tankless Water Heaters, Air Conditioners, and HVAC for Canadian Homes and Businesses - Rheem.ca

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