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13
Installation Instructions (cont’d)
Wiring Diagrams
STANDARD WIRING FOR
2 WIRE LEAD WATER HEATERS
NON-SIMULTANEOUS OPERATION
240 VOLT DOUBLE ELEMENT
WIRING FOR 3 WIRE LEAD WATER HEATERS
NON-SIMULTANEOUS OPERATION
240 VOLT DOUBLE ELEMENT
THREE TYPES OF FIELD
CONNECTIONS YOU MAY
HAVE
LOWER
HEATING ELEMENT
LOWER
HEATING ELEMENT
BLACK
RED
RED
BLACK
BLUE
BLACK
BLACK
BLACK
YELLOW
YELLOW
RED
BLUE
BLUE
YELLOW
TO ELECTRIC
POWER SUPPLY
UPPER
ELEMENT
UPPER
ELEMENT
LOWER
T’STAT
UPPER E.C.O. &
THERMOSTAT
UPPER E.C.O. &
THERMOSTAT
*NOTE: Some Lower Hi-Temp Limit
Switches may have 4 terminals. Use
only the 2 terminals on left.
TIME CLOCK SWITCH
OPERATES BOTTOM ELEMENT ONLY
TO ELECTRIC
POWER SUPPLY
TO TIME
CLOCK SWITCH
JUNCTION BOX
YELLOW
BLUE
BLACK
L1
L2
L2
L2
TO ELECTRIC
POWER SUPPLY
L1
L1
L2
L2
YELLOW
BLUE
BLACK
JUNCTION BOX
“OFF PEAK” METER
OPERATES BOTTOM ELEMENT ONLY
TO “OFF
PEAK” METER
TO ELECTRIC
POWER SUPPLY
JUNCTION BOX
L1
L2
FOR TWO WIRE CONNECTION
YELLOW
BLUE
BLACK
FOR 5500 WATTS
BUSS BAR
RED
RED
BLACK
BLACK
FOR 3800 WATTS
FOR 5500 WATTS
BUSS BAR
RED
RED
BLACK
BLACK
FOR 3800 WATTS
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