HomeMy WebLinkAboutRTEX27 water heaterPerformance Features
• On demand, consistent and continuous
hot water
• Compact and stylish with digital
temperature control in increments of 1°
ranging from 80°F to 140°F*
• Robust copper immersion heating
elements with brass top increases
durability and are threaded for easy
replacement
• Simple Installation
• Digital temperature display
• External controls to adjust temperature
in increments of 1°*
Average GPM Usage by
Application
Average Gallons Per Minute (GPM) based on 2010
Plumbing Standards
PRINTED IN U.S.A. 05/19 WP FORM NO. TKE-101 Rev. 4
INTEGRAT ED HOME COMFORTINTEGRATED HOME COMFORT
Professional Classic® tankless electric water
heaters offer continuous hot water
Water INTEGRATED HOME COMFORT
Residential Electric
Professional Classic
Tankless Water Heaters
RTEX-08, RTEX-11, RTEX-13RTEX-04, RTEX-06
Unique Features:
• External Adjustable Digital
Thermostatic Control with LED
display (+/- 1 degree accuracy)
• Durable Copper Immersion two
heating elements, field serviceable
• Simple Installation – 1/2 NPT
adapters included; Side 1/2"
compression water connections
Unique Features:
• External Digital Display – shows
outlet temperature
• Durable Copper Immersion
single heating element, field
serviceable
• Simple Installation – Bottom 1/2"
NPT water connections
RTEX-18
Unique Features:
• External Digital Thermostatic
Control with LED display (+/- 1
degree accuracy)
• Most advanced self-modulation,
adjust power to meet hot water
demand
• Durable Copper Immersion two
heating elements, field serviceable
• Simple Installation – Bottom 3/4"
NPT water connections
RTEX-24, RTEX-27
Unique Features:
• External Digital Thermostatic
Control with LED display (+/- 1
degree accuracy)
• Most advanced self-modulation,
adjust power to meet hot water
demand
• Durable Copper Immersion three
heating elements, field serviceable
• Simple Installation – Bottom 3/4"
NPT water connections
Unique Features:
• External Digital Thermostatic
Control with LED display (+/- 1
degree accuracy)
• Most advanced self-modulation,
adjust power to meet hot water
demand
• Durable Copper Immersion four
heating elements, field serviceable
• Simple Installation – Bottom 3/4"
NPT water connections
RTEX-36
MODEL NUMBER
TEMPERATURE RISE °F
0.5
GPM
1.0
GPM
1.5
GPM
2.0
GPM
2.5
GPM
3.0
GPM
4.0
GPM
5.0
GPM
6.0
GPM
SINGLE POINT-OF-USE
RTEX-04 48°24°16°12°–––––
RTEX-06 75°37°25°19°–––––
MULTIPLE APPLICATIONS
RTEX-08 +55°36°27°22°18°14°––
RTEX-11 +75°50°38°30°25°19°––
RTEX-13 +89°59°44°36°30°22°––
RTEX-18 ++82°62°49°41°31°25°–
RTEX-24 ++109°82°66°55°41°33°27°
RTEX-27 +++92°74°62°46°37°31°
RTEX-36 ++++98°82°62°49°41°
+ Temperature electronically limited setting on adjustable thermostat on front cover
*RTEX-04 and RTEX-06 only show output temperature and are non-thermostatically controlled
Rheem.com
Tested and certified by the
Water Quality Association
against NSF/ANSI 372 for
lead free compliance.
Standard Hand Sink 0.5 GPM
Washing Machine 1 to 1.5 GPM
Water-Saver Shower Head 1.5 GPM
Dishwasher 1 to 2 GPM
Kitchen Sink 1 to 2 GPM
Standard Shower Head 2.0 GPM
Bath Tub ≥ 4 GPM
Whole-Home Up to 6 GPM
Warranty
• 5-Year heating chamber and 1-year parts limited warranty
See Residential Warranty Certificate for complete information RTEX-08, RTEX-11,
RTEX-13
RTEX-18
RTEX-24, RTEX-27 RTEX-36
RTEX-04, RTEX-06
POINT-OF-USE
For 0.5 GPM to 2.0 GPM Applications
MULTIPLE APPLICATIONS
For 0.5 GPM to 6.0 GPM Applications
PRINTED IN U.S.A. 05/19 WP FORM NO. TKE-101 Rev. 4
2
Rheem.com | 800.374.8806
Manufacturers National Service Department
400 Captain Neville Drive, Waterbury, CT 06705
INTEGRATED HOME COMFORTINTEGRATED HOME COMFORT
In keeping with its policy of continuous progress and product improvement, Rheem reserves the right to make changes without notice.
Specifications
Water INTEGRAT ED HOME COMFORT
Residential Electric
Professional Classic
Tankless Water Heaters
* 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 officials prior to derating the electrical infrastructure.
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
RTEX-04 3.5 29A (1x30)A 120 10 AWG 0.3 1.5 5-7/8 10-7/8 2-3/4 1/2 NPT 4.5
240V* 1 HEATING CHAMBER
RTEX-06 5.5 25A (1x25)A 220 10 AWG 0.3 2.0 5-7/8 10-7/8 2-3/4 1/2 NPT 4.5
RTEX-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
RTEX-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
RTEX-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
240V* 2 HEATING CHAMBERS
RTEX-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
240V* 3 HEATING CHAMBERS
RTEX-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
RTEX-27*27.0 113A (3x40)A 240 8 AWG 0.3 7.0 18-1/4 17-5/8 3-1/2 3/4 NPT 17.8
240V* 4 HEATING CHAMBERS
RTEX-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
Rated Pressure 25 PSI min., 150 PSI max.
Certifications ETL Listed to UL 499 and CSA
Std. Temp. Settings 120°F (Adjustable 80°F-140°F)
Temp. Accuracy +/–1° at steady flow
Turn-On 0.3 GPM
Product
Specifications
(all models)
RHEEM
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 specified flow
rate to ensure exiting temperature is within an
acceptable range
• Flow Regulators for ½" and ¾" NPT plumbing
connections
• Flow range: 1 to 5 gallons per minute
Suggested Sizing Guide
MODEL
NUMBER
FLOW
REGULATOR
PART NO.
GPM INSERT TO USE BASED ON
INLET WATER TEMPERATURE
40°F 50°F 60°F 70°F
RTEX-04 N/A N/A N/A N/A N/A
RTEX-06 N/A N/A N/A N/A N/A
RTEX-08 RTE10001A 1.0 1.0 1.0 1.5
RTEX-11 RTE10001A 1.0 1.0 1.5 2.0
RTEX-13 RTE10001A 1.0 1.0 1.5 2.0
RTEX-18 RTE10001B 2.0 2.0 2.0 3.0
RTEX-24 RTE10001B 2.0 2.0 3.0 4.0
RTEX-27 RTE10001B 2.0 3.0 4.0 5.0
RTEX-36 RTE10001B 3.0 4.0 5.0 5.0
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 flow
meter with a 0.3 gpm activation point and manage power based on
actual flow rate and inlet temperature. Values should be processed
60 times per second. Unit shall be WQA certified lead free, certified
to UL499 and CSA C22.2 No.64.