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Wiring Diagrams — Therm-O-Disc Thermostats (Type 59T)
DOUBLE ELEMENT
FIG. A-1
SIMULTANEOUS OPERATION
BRANCH CIRCUIT
TO ELECTRICAL
DISTRIBUTION PANEL
G
H
N
1
THERMOSTAT
& HIGH TEMP.
LIMIT (ECO)
2
1
2
HEATING
ELEMENT
SINGLE ELEMENT
120 V ONLY
BRANCH CIRCUIT
TO ELECTRICAL
DISTRIBUTION
L1
L2
*
G
1
3
THERMOST
AT
& HIGH
4
2
1
2
HEATIN
G
LOWER
HEATING
ELEMENT
SINGLE ELEMENT
FIG. A-2
FIG. B
Grounding conductor may be required.
*
Refer to Wiring Section of Manual
THIS ELECTRIC WATER HEATER IS WIRED AS INDICATED ABOVE OR BELOW
Wiring Diagrams
Electric Water Heaters for
3 - Phase Applications
Therm-O-Disc Thermostats
(Type 59T)
For the connection of this
water heat er to a 3-Phase Branch
Circuit, con nect field wiring to
the water heater as indicated in
the ap pro pri ate wiring diagram
at right. A sep a rate junction box
is being supplied with this water
heater (check bot tom of carton)
to accomodate wir ing and con-
duit con nec tions. Install the
Junction Box as shown on the
Installation/Instruction Sheet
in clud ed in the plastic bag
at tached to the heater.
DOUBLE ELEMENT
SIMULTANEOUS OPERATION
WITH 4 WIRE OUTLET
TO SECOND POWER SOURCE,
BRANCH CIRCUIT
"OFF PEAK" METER, OR TIMER
TO ELECTRICAL
DISTRIBUTION PANEL
BRANCH CIRCUIT
TO ELECTRICAL
DISTRIBUTION PANEL
TM2
*
L1
L1
G
L2
1
1
3
4
2
2
1
1
2
2
YELLOW
YELLOW
UPPER
HEATING
ELEMENT
LOWER
LOWER
THERMOSTAT
THERMOSTAT
& HIGH TEMP
& HIGH TEMP
LIMIT (ECO)
LIMIT (ECO)
1
1
3
2
2
4
1
1
2
2
LOWER
HEATING
ELEMENT
FIG. C
DOUBLE ELEMENT
NON-SIMULTANEOUS
BRANCH CIRCUIT
TO ELECTRICAL
DISTRIBUTION PANEL
TM1
*
G
*
L1
L2
G
L2
UPPER THERMOSTAT
1
3
3
4
2
4
1
4
2
UPPER
HEATING
UPPER
ELEMENT
HEATING
ELEMENT
3
LOWER
4
THERMOSTAT
1
2
LOWER
HEATING
ELEMENT
FIG. D
DOUBLE ELEMENT
SIMULTANEOUS OPERATION
3- PHASE BRANCH CIRCUIT
TO ELECTRICAL
DISTRIBUTION PANEL
L1
1
3
4
2
1
2
YELLOW
UPPER
HEATING
ELEMENT
LOWER
THERMOSTAT
& HIGH TEMP
LIMIT (ECO)
1
3
2
4
1
2
LOWER
HEATING
ELEMENT
FIG. G
DOUBLE ELEMENT
NON-SIMULTANEOUS
WITH 4 WIRE OUTLET !
BRANCH CIRCUIT
TO ELECTRICAL
DISTRIBUTION PANEL
L1
*
L2
G
& HIGH TEMP.
1
3
LIMIT (ECO)
2
4
1
4
2
UPPER
UPPER THERMOSTAT
HEATING
& HIGH TEMP. LIMIT
ELEMENT
(ECO)
1
2
LOWER
THERMOSTAT
LOWER
HEATING
ELEMENT
FIG. E
!
This water heater is factory equipped for two (2) wire connection to
electrical power. For use with "off-peak" meter (timer) remove wire
nut from red and black leads and connect to "off-peak" meter (timer).
L3
L2
L1
*
G
HEATING
ELEMENT
DOUBLE ELEMENT
NON-SIMULTANEOUS
WITH 3 WIRE OUTLET
CONNECTOR TO "OFF PEAK"
METER (TIMER)
BRANCH CIRCUIT
TO ELECTRICAL
DISTRIBUTION PANEL
TM2
L1
*
L2
G
1
3
2
4
1
4
2
UPPER
HEATING
ELEMENT
LOWER
THERMOSTAT
& HIGH TEMP
LIMIT (ECO)
1
2
1
2
LOWER
HEATING
ELEMENT
FIG. F
DOUBLE ELEMENT
NON-SIMULTANEOUS
3- PHASE BRANCH CIRCUIT
TO ELECTRICAL
DISTRIBUTION PANEL
L2
L3
*
G
1
3
4
2
1
4
2
YELLOW
UPPER
HEATING
ELEMENT
LOWER
THERMOSTAT
& HIGH TEMP
LIMIT (ECO)
1
2
1
2
LOWER
FIG. H
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