Specification

Tankless Electric Specifications
12/16 FORM NO. THD-PTE
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
RETEX-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
RETEX-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
RETEX-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
RETEX-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
RETEX-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
RETEX-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
RETEX-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
RETEX-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
RETEX-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
RETEX-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
RETEX-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
RETEX-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
RETEX-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
RETEX-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
RETEX-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
RETEX-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
2
RETEX-08, RETEX-11
RETEX-13
RETEX-04, RETEX-06
Unique Features:
• External Adjustable Digital
Thermostatic Control with
LED display (+/- 1 degree
accuracy)
• Durable Copper
Immersion two heating
elements, field serviceable
• Simple Installation –
3 Foot electric cable
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 –
3 Foot electric cable
included; Bottom 1/2"
NPT water connections
RETEX-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
RETEX-24, RETEX-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
RETEX-36
* 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.
PERFORMANCE
™
tankless electric water heaters