Wiring Diagram - Rheem 72V20-1 Use And Care Manual

Wiring Diagrams — Therm-O-Disc Thermostats (Type 59T)
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
2 4
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
20
DOUBLE ELEMENT
SIMULTANEOUS OPERATION
DOUBLE ELEMENT
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
2
2 4
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
*
1 3
3
4
4 2
1 4
2
UPPER
HEATING
UPPER ELEMENT
HEATING
ELEMENT
3
THERMOSTAT
4
1
2
LOWER
HEATING
ELEMENT
FIG. D
DOUBLE ELEMENT
NON-SIMULTANEOUS
WITH 4 WIRE OUTLET !
BRANCH CIRCUIT
TO ELECTRICAL
DISTRIBUTION PANEL
L1 L2
G *
UPPER THERMOSTAT
& HIGH TEMP.
1 3
LIMIT (ECO)
4
2
1 4
2
UPPER
UPPER THERMOSTAT
HEATING
& HIGH TEMP. LIMIT
ELEMENT
(ECO)
LOWER
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).
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
4
2
1
4
2
UPPER
HEATING
ELEMENT
LOWER
THERMOSTAT
& HIGH TEMP
LIMIT (ECO)
1
2
1
2
LOWER
HEATING
ELEMENT
FIG. F