ELECTRICAL HOOK-UP
WARNING
HAZARD OF ELECTRICAL SHOCK! BEFORE BEGINNING ANY WORK ON THE
INSTALLATION, MAKE SURE THE ELECTRICAL SUPPLY TO THE HEATER IS TURNED
“OFF”. FAILURE TO DO THIS COULD RESULT IN DEATH, SERIOUS BODILY INJURY,
OR PROPERTY DAMAGE.
WARNING
WATER HEATERS EQUIPPED FOR ONE VOLTAGE ONLY: CHECK THE RATING PLATE
ON THE FRONT OF THE UNIT. DO NOT USE THIS WATER HEATER WITH ANY VOLTAGE
OTHER THAN THE ONE SHOWN ON THE MODEL RATING PLATE. FAILURE TO DO SO
CAN RESULT IN DEATH, SERIOUS BODILY INJURY, OR PROPERTY DAMAGE. IF YOU
HAVE ANY QUESTIONS OR DOUBTS CONSULT YOUR ELECTRIC COMPANY.
This heater must have its own independent circuit using five wires; three live,one neutral and
one ground of the appropriate rating protected by the correctly rated three pole breaker
RATINGS OF “EX” THREE PHASE MODELS
THIS UNIT MUST NOT BE CONNECTED IN DELTA CONFIGURATION
6
MODEL MAX. OUTPUT CURRENT TEMPERATURE RISE (F)
480Y/277V PER PHASE 7.5gpm 10gpm 12.5gpm 15gpm 17.5gpm 20gpm
3Ø4W
EX 1260 126 KW 156 ----
86 69 57 49 43
EX1080 108 KW 130 98 74 59 49 42 37
EX 960 96 KW 116 87 66 52 44 37 33
EX 720 72 KW 87 66 49 39 33 28 25
EX 480 48 KW 58 44 33 26 22 19 16
