Technical Specifications

Essential
RichmondWaterHeaters.com RICHMOND
®
WATER HEATERS
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 • 01/18 • FORM NO. T-660 Rev. 2
Tankless Electric Specications
* 240V units can be used on 208V single phase with 25% reduced temperature output. Please note per UL standards the rating plate and installation instructions will all be according to a 240V
applied voltage. Check with local ofcials prior to derating the electrical infrastructure.
Rated Pressure 25 PSI min., 150 PSI max.
 Certications ETL Listed to UL 499 and CSA
Std. Temp. Settings 120°F (Adjustable 80°F-140°F)
Temp. Accuracy +/–1° at steady state ow
Turn-On 0.3 GPM
PRODUCT
SPECIFICATIONS
(ALL MODELS)
RICHMOND PART
NUMBER
GPM RATING OF
INSERTS PROVIDED
CONNECTION
SIZE
RTE10001A 1.0, 1.5, 2.0 1/2" NPT
RTE10001B 2.0, 3.0, 4.0, 5.0 3/4" NPT
OPTIONAL INLINE FLOW REGULATOR
• Enhanced outlet temperature control
• Install on the outlet side of the heater
• Limit maximum volume to the specied ow rate to ensure
exiting temperature is within an acceptable range
• Flow Regulators for ½" and ¾" plumbing connections
• Flow range: 1 to 5 gallons per minute
SUGGESTED SIZING GUIDE
COLD CLIMATE
(INLET TEMP.
35-45°F)
WARM CLIMATE
(INLET TEMP.
50-60°F)
HOT CLIMATE
(INLET TEMP.
65-75°F)
RMTEX-04 N/A N/A N/A
RMTEX-06 N/A N/A N/A
RMTEX-08 RTE10001A RTE10001A RTE10001A
RMTEX-11 RTE10001A RTE10001A RTE10001A
RMTEX-13 RTE10001A RTE10001A RTE10001A
RMTEX-18 RTE10001B RTE10001B RTE10001B
RMTEX-24 RTE10001B RTE10001B RTE10001B
RMTEX-27 RTE10001B RTE10001B RTE10001B
RMTEX-36 RTE10001B RTE10001B RTE10001B
Selection based on inlet temperature and an outlet temperature setting of 105°F
SUGGESTED SPECIFICATIONS
Unit shall have copper clad immersion heating element(s) with
brass terminations for increased durability. External temperature
control and display adjustable in 1° increments with a range of
80°-140°F. Display shall be capable of displaying setpoint
temperature in Celsius or Fahrenheit temperature scales. Unit shall
utilize a ow meter with a 0.3 gpm activation point and manage
powerbased on actual ow rate and inlet temperature. Values
should be processed 60 times per second.Unit shall be WQA
certied lead free, certied to UL499 and CSA22.2.
DESCRIPTION FEATURES ROUGHING IN DIMENSIONS (SHOWN IN INCHES)
MODEL NUMBER kW AMPS
RECOMMENDED
BREAKER
SIZE VOLTAGE
RECOMMENDED
WIRE SIZE (CU)
MIN.
FLOW
(GPM)
MAX.
FLOW
(GPM) HEIGHT WIDTH DEPTH
WATER
CONN.
SHIP
WEIGHT
(LBS.)
120V 1 HEATING CHAMBER
RMTEX-04 3.5 29A (1x30)A 120 10 AWG 0.3 4.8 5-7/8 10-7/8 2-3/4 1/2 NPT 4.5
240V* 1 HEATING CHAMBER
RMTEX-06 5.5 29A (1x30)A 220 10 AWG 0.3 4.8 5-7/8 10-7/8 2-3/4 1/2 NPT 4.5
RMTEX-08 8.0 33A (1x40)A 240 8 AWG 0.3 4.8 12-5/8 8-1/4 3-5/8 1/2 CF 7
RMTEX-08 (derated 208V performance)* 5.8 28A (1x40)A 208 8 AWG 0.3 4.8 12-5/8 8-1/4 3-5/8 1/2 CF 7
RMTEX-11 11.0 46A (1x50)A 240 6 AWG 0.3 4.8 12-5/8 8-1/4 3-5/8 1/2 CF 8.5
RMTEX-11 (derated 208V performance)* 8.2 29A (1x50)A 208 6 AWG 0.3 4.8 12-5/8 8-1/4 3-5/8 1/2 CF 8.5
RMTEX-13 13.0 54A (1x60)A 240 6 AWG 0.3 4.8 12-5/8 8-1/4 3-5/8 1/2 CF 8.5
RMTEX-13 (derated 208V performance)* 10.1 49A (1x60)A 208 6 AWG 0.3 4.8 12-5/8 8-1/4 3-5/8 1/2 CF 8.5
240V* 2 HEATING CHAMBERS
RMTEX-18 18.0 75A (2x40)A 240 8 AWG 0.3 7.0 18-1/4 14-1/2 3-1/2 3/4 NPT 14.78
RMTEX-18 (derated 208V performance)* 13.3 64A (2x40)A 208 8 AWG 0.3 7.0 18-1/4 14-1/2 3-1/2 3/4 NPT 14.78
240V* 3 HEATING CHAMBERS
RMTEX-24 24.0 100A (3x40)A 240 8 AWG 0.3 7.0 18-1/4 17-5/8 3-1/2 3/4 NPT 17.8
RMTEX-24 (derated 208V performance)* 17.5 84A (3x40)A 208 8 AWG 0.3 7.0 18-1/4 17-5/8 3-1/2 3/4 NPT 17.8
RMTEX-27 27.0 112A (3x40)A 240 8 AWG 0.3 7.0 18-1/4 17-5/8 3-1/2 3/4 NPT 17.8
RMTEX-27 (derated 208V performance)* 20.0 96A (3x40)A 208 8 AWG 0.3 7.0 18-1/4 17-5/8 3-1/2 3/4 NPT 17.8
240V* 4 HEATING CHAMBERS
RMTEX-36 36.0 150A (4x40)A 240 8 AWG 0.3 8.0 18-1/4 21-5/8 3-1/2 3/4 NPT 22.7
RMTEX-36 (derated 208V performance)* 26.6 127A (4x40)A 208 8 AWG 0.3 8.0 18-1/4 21-5/8 3-1/2 3/4 NPT 22.7