Installation Guide

GENERAL INFO
Four-Chamber Models (Single Phase)
For potable water heating only. Not for space heating.
NOTICE: Models sorted by Voltage, then by Wattage per Element.
Model Recommended
Breaker Size
(Amps)
Voltage Number of
Elements
Wattage per
Element (KW)
Current per
Breaker
(Amps)
Recommended
Wire Size
*
(AWG)
Element
Type
*4**-280-X 70 amps each
(2 cirucits)
208 4 7 67.31
6
Single
*4**-180-E 40 amps each
(2 circuits)
240 4 4.5 37.50 8 Single
*4**-220-E 50 amps each
(2 circuits)
240 4 5.5 45.83 6 Single
*4**-240-E 60 amps each
(2 circuits)
240 4 6 50.00
6
Single
*4**-280-E 60 amps each
(2 circuits)
240 4 7 58.33
6
Single
*4**-320-E 70 amps each
(2 circuits)
240 4 8 66.67
6
Single
*
All wiring/conductors must be rated for 90°C or greater.