RUUD RUTGH-SR10i Residential Gas RUTGH-SR Tankless Water Heaters Instruction Manual
- June 13, 2024
- RUUD
Table of Contents
RUUD RUTGH-SR10i Residential Gas RUTGH-SR Tankless Water Heaters
FEATURES
Easy Installation
- PVC Vent runs up to 70′ (2″), 150′ (3″)
- Easy set up with full text digital display and no dip-switches
- Field gas convertible from natural gas to LP – conversion kit included
Ready for Retrofits
- Allows flex venting through existing B-vent up to 50′
- 1/2″ Gas line compatibility (subject to local code)
- Approved for installations in Manufactured Home (Mobile Home) environments
Key Features
- Stainless steel Primary and Secondary heat exchangers provide increased efficiency and durability
- Hot-start programming™ ensures the unit is in a ready state between back-to-back usage, avoiding any cold water bursts – Ruud® Exclusive!
- Built-in Recirculation pump for instant hot water at the tap
- Built-in EcoNet® WiFi capability for direct control from your device
Specifications
| Rheem Model Number | RUTGH- SR10i | RUTGH- SR11i |
|---|---|---|
| Gas Input Rate | MAX | 180,000 BTU/h |
| MIN | 11,000 BTU/h | 11,000 BTU/h |
| Uniform Energy Factor (UEF) | 0.96 | |
| Gallons Per Minute (GPM) | MAX (35°F) | 10.1 |
| 45°F Rise | 7.9 | 8.8 |
| 67°F Rise | 5.2 | 5.8 |
| Number of Bathrooms 1 | __ | |
| Temp. Range | 85°F – 140°F | |
| Temp. Setting from Factory | 120°F | |
| Installation Type | Indoor (Outdoor Conversion Kit sold separately: |
RTGH-SX)
Fuel Type| Compatible with Natural Gas and LP (ships NG with LP
conversion kit included)
Heat Exchanger Material| Primary: Stainless Steel – Secondary:
Stainless Steel
Minimum Activation Flow| 0.4 GPM
Minimum Continuous Flow| 0.26 GPM
Maximum Altitude| 10,200 ft.
Ultra Low NOx| Yes (SCAQMD compliant)
__
Warranty
| 15 Year Heat Exchanger – (w/ registration) 12 Year Heat Exchanger – (w/o
registration) 5-Year Parts | 1-Year Labor
Model Number| RUTGH- SR
---|---
Height| 28-9/16″
Width| 17-5/16″
Depth| 13-11/16″
Weight| 86lbs
Venting Diam. Allowed| 2″ / 3″
Max. Single Vent Run (straight pipe)| 70 ft (2″)/
150 ft (3″)
Venting Materials| Sched. 40 PVC, CPVC, PP
Common Venting (max. units)| 2 units3
Flex Venting| Allowed: 2″ up to 50′
Manifold Controls (max. units)| Up to 20 units without
external control required4
Controls| Built-in digital display with full-text menus
Power Supply| 120V 60Hz
__
Max. Power Consumption
| 100W (Normal use), 0.83Amps 200W (Anti freeze), 1.67Amps 3.5W (Standby),
0.03Amps5
Gas Connection| 3/4″ NPT
Hot Water Connection| 3/4″ NPT
Cold Water Connection| 3/4″ NPT
Condensate Connection| 1/2″ NPT
Vent Connections Diameter| 2″ Band Connections (Adapter required to vent
with 3″ PVC from unit)
Indoor Models (Outdoor Conversion Kit Available: RTGH-SX) 11,000-199,900 BTU/h Natural Gas/LP Convertible
Clearances
Top / Bottom| 12″
Front| 1/2″6
Sides| 1/2″
Back / From Vent Pipe| 0″
Recirculation Length (SR Models)
Pipe Diameter| Max. Recirculation Loop
3/4″| 400 ft.
1/2″| 100 ft.
Based on simultaneous showers using 2.5 GPM flow rate pre-mixed with cold water line. Flow rates vary depending on the temperature of incoming cold water and the water heater set temperature. Refer to flow rate curves for accurate sizing. 2 For indoor applications, this is the temperature of outdoor intake air. 3 External check valves are required for installation. 4 Manifolds with standard RJ25 communication cables. 5 If an anti freeze is on and combustion is on, total W will be 217W (85+132). 6 Recommended 24″ clearance for service.
Water Heater Flow Rate Curves
Venting
SINGLE UNIT: MAX. EQUIVALENT VENT LENGTHS – STRAIGHT PIPE
Number of 90 Elbows| Max Length 2″ straight pipe|
Max. length 3″ straight pipe
0| 70 ft. (21.3 m)| 150 ft. (45.7 m)
1| 64 ft. (19.5 m)| 145 ft. (44.2 m)
2| 58 ft. (17.7 m)| 140 ft. (42.7 m)
3| 52 ft. (15.8 m)| 135 ft. (41.1 m)
4| 46 ft. (14.0 m)| 130 ft. (39.6 m)
5| 40 ft. (12.2 m)| 125 ft. (38.1 m)
6| 34 ft. (10.4 m)| 120 ft. (36.6 m)
Equivalent Ft. of Elbows
| 2″ Pipe| 3″ Pipe
90° Elbow| 6 ft (1.83 m)| 5 ft (1.52 m)
45° Elbow| 3 ft. (0.9 m)| 2.5 ft. (0.75 m)
Venting Materials Allowed: Schedule 40 PVC, CPVC, PP
Min. Vent Length Straight Pipe
Number of 90° Elbows| Min. Length 2″
3″ pipe
1| 1.0 ft (0.3 m)
COMMON VENTING
# of Water Heaters| 3″ Common Vent
2| 60 ft.
SINGLE UNIT:
Max. Flex Venting
Max Length 2″ flex vent
50 ft.
Dimensions
TOP VIEW
BOTTOM VIEW
- The hanging bracket, bird screens, and LP gas conversion kit are included with the water heater.
Parts & Accessories
- In keeping with its policy of continuous progress and product improvement, Ruud reserves the right to make changes without notice.
- Ruud Water Heating
- 1115 Northmeadow Parkway, Suite 100, Roswell, Georgia 30076
- www.ruud.com