Instructions / Assembly

EX07200-120 Rev A
Manufacturer’s National Service Department | 400 Captain Neville Dr. Waterbury, CT 06705
Eemax® 800-543-6163 | EcoSmart® 877-474-6473 | Rheem® or Richmond® 800-374-8806
Information contained in this document is subject to change without notice.
7
Refer to the chart below for recommended copper wiring for conductors with a temperature rating of 75°C:
Non-thermostatic
Tankless Electric Water
Heaters
Thermostatic
Tankless Electric
Water Heaters
Thermostatic Tankless
Electric Water Heaters with
Integrated Mixing Valve
Voltage
Max power
Max current
Minimum wire
size (AWG)
@75°C
(VAC)
(kW)
(A)
RTEH1812
RTEH1812T
-
120
1.8
15
14
RTEH2412
RTEH2412T
-
120
2.4
20
14
RTEH3012
RTEH3012T
-
120
3
25
12
RTEH3512
RTEH3512T
RTEH004120MV
120
3.5
29
10
RTEH35
RTEH35T
-
240
3.5
15
14
RTEH48
RTEH48T
RTEH005240MV
240
4.8
20
14
RTEH55
RTEH55T
-
240
5.5
23
12
RTEH65
RTEH65T
RTEH007240MV
240
6.5
27
10
RTEH75
RTEH75T
-
240
7.5
32
10
RTEH95
RTEH95T
RTEH010240MV
240
9.5
40
8
-
RTEH012240T
RTEH012240MV
240
11.5
48
8
RTEH3208
RTEH3208T
-
208
3
15
14
RTEH4208
RTEH4208T
-
208
4.1
20
14
RTEH8208
RTEH8208T
-
208
8.3
40
8
RTEH3277
RTEH3277T
-
277
3
11
14
RTEH4277
RTEH4277T
RTEH004277TMV
277
4.1
14.8
14
RTEH60
RTEH60T
-
277
6
22
12
RTEH80
RTEH80T
RTEH008277MV
277
8
29
10
RTEH90
RTEH90T
-
277
9
33
10
RTEH100
RTEH100T
RTEH010277MV
277
10
36
8
Power cable entry to the heater should be made through one of
the knock-out holes located on the back plate or top/bottom
ends of the unit. Use the appropriate strain relief fitting.
The power leads are to be secured to the L1 and L2 or L and N
connectors on the terminal block or relay. The ground lead is to
be secured to the GND connector on the block or the green
ground wire with the provided wire nut.
FAILURE TO GROUND THE SYSTEM MAY RESULT IN SERIOUS INJURY, DEATH AND/OR PROPERTY
DAMAGE.