Wiring Diagram - Rheem Single Element Use & Care Manual

Single Phase
Wiring
NOTICE: This guide recommends minimum branch circuit sizing and wire size based on National Electric Code. Refer to
wiring diagrams in this manual for field wiring connections.
Wiring Diagrams
240 Volt
SINGLE ELEMENT
L1
1
2
1
2
Branch Circuit Sizing and Wire Size Guide
Total Water
Heater Wattage
2,000
3,000
3,800
4,500
!
DANGER: Elements should only be replaced with an element of the same power rating
that was factory installed, and corresponds to the rating label on the unit.
BRANCH CIRCUIT
TO ELECTRICAL
DISTRIBUTION PANEL
*
G
L2
3
THERMOSTAT
& HIGH TEMP.
LIMIT (ECO)
4
HEATING
ELEMENT
Recommended Over Current
Protection Copper (fuse or circuit
breaker amperage rating)
120V 240V
20 ----
---- 20
---- 20
---- 25
120 Volt
SINGLE ELEMENT
BRANCH CIRCUIT
TO ELECTRICAL
DISTRIBUTION PANEL
*
G
H N
1
THERMOSTAT
& HIGH TEMP.
LIMIT (ECO)
2
1
2
HEATING
ELEMENT
Wire Size AWG Based on N.E.C.
Table 310-16 (75°C)
120V 240V
12 ----
---- 12
---- 12
---- 10
240 Volt
DOUBLE ELEMENT
BRANCH CIRCUIT
TO ELECTRICAL
DISTRIBUTION PANEL
*
G
L1 L2
UPPER THERMOSTAT
& HIGH TEMP.
1 3
LIMIT (ECO)
2 4
1 4
2
UPPER
HEATING
ELEMENT
LOWER
THERMOSTAT
1
2
LOWER
HEATING
ELEMENT
11