Rheem Light Duty Commercial Electric Water Heater - Manual (Page 12)

Grounding conductor may be required.
Refer to Wiring Section of Manual * 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). ‡
Wiring Diagrams — Therm-O-Disc Thermostats (Type 59T)
SINGLE ELEMENT
DOUBLE ELEMENT
SIMULTANEOUS OPERATION
DOUBLE ELEMENT
SIMULTANEOUS OPERATION
WITH 4 WIRE OUTLET
DOUBLE ELEMENT
NON-SIMULTANEOUS
DOUBLE ELEMENT
NON-SIMULTANEOUS
WITH 4 WIRE OUTLET ‡
DOUBLE ELEMENT
NON-SIMULTANEOUS
WITH 3 WIRE OUTLET FIG. A-1
FIG. A-2 FIG. B F IG. C FIG. D FIG. E F IG. F
2
1
2
THERMOSTAT
& HIGH TEMP.
LIMIT (ECO)
HEATING
ELEMENT
WHITE
BLACK
BLACK
H
JUNCTION
BOX
N
1
G *
BRANCH CIRCUIT
TO ELECTRICAL
DISTRIBUTION PANEL
120 V ONLY
2
1
2
THERMOSTAT
& HIGH TEMP.
LIMIT (ECO)
HEATING
ELEMENT
RED
BLACK
BLACK
L1 G *
BRANCH CIRCUIT
TO ELECTRICAL
DISTRIBUTION PANEL
JUNCTION
BOX
4
L2
RED
1 3
SINGLE ELEMENT
2
UPPER T
H
ERMOST
A T
& HIGH
T E MP
. LIMIT
(ECO)
UPPER
HEATING
ELEMENT
BLUE
L1
JUNCTION
BOX
4
L2
1 3
BLACK
RED
BLACK
LOWER
HEATING
ELEMENT
LOWER
THERMOSTAT
& HIGH TEMP
LIMIT (ECO)
1
2
1
1
2
BLUE
CONNECTOR TO "OFF PEAK"
METER (TIMER)
TM2
4
YELLOW
YELLOW
2
BRANCH CIRCUIT
TO ELECTRICAL
DISTRIBUTION PANEL
BLACK
LOWER
HEATING
ELEMENT
2
UPPER THERMOSTAT
& HIGH TEMP.
LIMIT (ECO)
UPPER
HEATING
ELEMENT
BLUE
YELLOW
BLACK
L1
JUNCTION
BOX
4
L2
RED
1 3
1
2
BLACK RED
LOWER
THERMOSTAT
1
2
4
BRANCH CIRCUIT
TO ELECTRICAL
DISTRIBUTION PANEL
2
1
2
UPPER THERMOSTAT
& HIGH TEMP. LIMIT
(ECO)
UPPER
HEATING
ELEMENT
BLUE
YELLOW
L1
JUNCTION
BOX
4
L2
RED
1 3
1
2
4
BLACK
BLUE
BLACK
BLUE YELLOW
LOWER
THERMOSTAT
LOWER
HEATING
ELEMENT
TM 1
BLACK
TM 2
BRANCH CIRCUIT
TO ELECTRICAL
DISTRIBUTION PANEL
G * G * G *
BRANCH CIRCUIT
TO ELECTRICAL
DISTRIBUTION PANEL
UPPER T
H
ERMOST
A T
& HIGH
T E MP
. LIMIT
(ECO) 2
UPPER
HEATING
ELEMENT
BLUE
L1
JUNCTION BOX
4
L2
1 3
RED (10 GA)
BLACK
LOWER
HEATING
ELEMENT
LOWER
THERMOSTAT
& HIGH TEMP
LIMIT (ECO)
1
2
4
1 3
1
2 RED
2
BLACK (10 GA)
YELLOW
BLACK (10 GA)
RED (10 GA)
G *
2
UPPER T
H
ERMOST
A T
& HIGH
T E MP
. LIMIT
(ECO)
UPPER
HEATING
ELEMENT
BLUE
L1
BRANCH CIRCUIT
TO ELECTRICAL
DISTRIBUTION PANEL
JUNCTION BOX
4
L2
1 3
BLACK (10 GA) RED (10 GA)
BLACK
LOWER
HEATING
ELEMENT
LOWER
THERMOSTAT
& HIGH TEMP
LIMIT (ECO)
1
2
4
1 3
1
2
RED
2
BLUE (10 GA)
TO SECOND POWER SOURCE,
"OFF PEAK" METER, OR TIMER
TM2 TM1
YELLOW (10 GA)
YELLOW
G *
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)
Fo r t h e c o n n e c t i o n o f t h i s wa t e r
heater to a 3-Phase Branch Circuit,
connect field wir ing to the water
heater as indicated in the ap propri -
ate wiring diagram at right. A sep a-
rate junction box is being supplied
with this water heater (check bot -
tom of car ton) to accomodate wir ing
and conduit con nections. Install the
Junction Box as shown on the In-
stallation/Instruction Sheet in cluded
in the plastic bag at tached to the
heater.
DOUBLE ELEMENT
SIMULTANEOUS OPERATION
DOUBLE ELEMENT
NON-SIMULTANEOUS
FIG. G FIG. H
2
UPPER THERMOST
AT
& HIGH
TEMP
. LIMIT (ECO)
UPPER
HEATING
ELEMENT
BLUE
4
L3
BLA
CK
BLA
CK
LOWER
HEATING
ELEMENT
LOWER
THERMOSTAT
& HIGH TEMP
LIMIT (ECO)
1
1
2
RED
2
BLUE
YELLOW
G *
YELLO
W
3
L2
1
1
L1
2
4
3- PHASE BRANCH CIRCUIT
TO ELECTRICAL
DISTRIBUTION PANEL
2
UPPER THERMOST
AT
& HIGH
TEMP
. LIMIT (ECO)
UPPER
HEATING
ELEMENT
BLUE
3- PHASE BRANCH CIRCUIT
TO ELECTRICAL
DISTRIBUTION PANEL
4
L3
BLA
CK (10 GA)
RED (10 GA)
BLA
CK
LOWER
HEATING
ELEMENT
LOWER
THERMOSTAT
& HIGH TEMP
LIMIT (ECO)
1
4
1
2
RED
2
BLUE (10 GA)
YELLOW
G *
YELLO
W (10 GA)
3
3
L2
1
1
L1
2