Filter
Top Products
NOTICE:All wiring must conform to local codes
or the latest edition of National Electrical Code
ANSI/NFPA 70.
WARNING: Any wiring outside of the house
should be rated for the appropriate weather
conditions.
If the system is being used as a pre-heater to an
existing water heater, the electrical review and
installation may not be required.
A 240 Volt electrical breaker with appropriate amp
rating is required to activate the Backup Heating
Element located near or as part of the main circuit
breaker/fuse panel.
The manufacturer’s warranty does not cover any
damage or defect caused by installation, attachment or
use of any type of energy saving or other unapproved
devices (other than those authorized by the
manufacturer) into, onto or in conjunction with the
water heater. The use of unauthorized energy saving
devices may shorten the life of the water heater and
may endanger life and property.
The manufacturer disclaims any responsibility for
such loss or injury resulting from the use of such
unauthorized devices.
Check the availability of a 240-volt, and an
appropriately sized electrical breaker. A separate
branch circuit with copper conductors, overcurrent
protective device and suitable disconnecting means
must be provided by a qualified electrician. If the
breaker is not available, mark a location for a separate
breaker.
When replacing an existing electric water heater see
the chart on page 14.
The voltage requirements and wattage load for the
water heater are specified on the rating plate on the
front of the water heater.
The branch circuit wiring should include either:
• Metallic conduit or metallic sheathed cable
approved for use as a grounding conductor and
installed with fittings approved for the purpose.
• Non-metallic sheathed cable, metallic conduit or
metallic sheathed cable not approved for use as a
ground conductor shall include a separate conductor
for grounding. It should be attached to the ground
terminals of the water heater and the electrical
distribution box.
!
Electrical System Requirements
15
Electrical Schematic
240 Volt, 20 AMP Supply Breaker Using No.
12 Wire (Copper) Minimum See the table on
page 14 for additional information.
240 Volt, With Ground Supply
Using 12 Ga.Wire (Copper)
Minimum Depending on Amp
draw. - See the table on page 14
for additional information.
Auxiliary Thermostatically Controlled
Electric Back-Up 220/240 Volt/2.4 kW
Weatherproofed
Roof-Mounted 2-Pole,
20-Amp Rated Switch
Disconnected
Tank-Mounted
Thermostat 220/240
Volt D.P.S.T.
Roof Line
Circuit Breaker
Weatherproofed
Roof-Mounted 2-Pole,
20-Amp Rated Switch Disconnected
Hot Return to
House
Cold Supply to Water
Heater
Old Water Heater
Electrical Junction Box
Main Supply Panel